火灾报警器中英文对照外文翻译文献

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火灾报警器中英文文献翻译

外文文献原稿和译文原稿Multiple single-chip microcomputer approach tofire detection and monitoring systemA.J. AI-Khalili, MSc, PhDD. AI-Khalili, MSc, PhDM.S. Khassem, MScIndexing term : Hazards, Design, Plant condition monitoringAbstract: A complete system for fire detection and alarm monitoring has been proposed for complex plants. The system uses multiple single chip architecture attached to a party line. The control algorithm is based on a two-level hierarchy of decision making, thus the complexity is distributed. A complete circuit diagram is given for the local and the central station with requirements for the software structure. The design is kept in general form such that it can be adapted to a multitude of plant configurations. It is particularly shown how new developments in technology, especially CMOS single chip devices, are incorporated in the system design to reduce the complexity of the overall hardware, e.g. by decomposing the system such that lower levels of hierarchy are able to have some autonomy in decision making, and thus a more complex decision is solved in a simple distributed method.1 Detection and alarm devicesA basic fire detection system consists of two parts, detection and annunciation. An automatic detection device, such as a heat, smoke or flame detector, ultraviolet or infrared detectors or flame flicker, is based on detectingthe byproduct of a combustion. Smoke detectors, of both ionization and optical types, are the most commonly useddetector devices. When a typical detector of this type enters the alarm state its current consumption increasesfrom the pA to the mA range (say, from a mere 15pA in the dormant mode to 60 mA) in the active mode. Inmany detectors the detector output voltage is well defined under various operating conditions, such as thosegiven in Table 1. The more sensitive thedetector, the more susceptible it is to false alarms.In order to control the detector precisely, either of the following methods is used: a coincidence technique can be built into the detector, or a filtering technique such that a logic circuit becomes active only if x alarms are detected within a time period T. The detection technique depends greatly on the location and plant being protected; smoke detectors are used for sleeping areas, infrared or ultraviolet radiation are used when flammable liquids are being handled, heat detectors are used for fire suppression or extinguishing systems. In general, life and property protection have different approaches.Alarm devices, apart from the usual audible or visible alarms, may incorporate solid state sound reproduction and emergency voice communication or printers that record time, date, location and other information required by the standard code of practice for fire protection for complex plants. Heaviside [4] has an excellentreview of all types of detectors and extinguisher systems.1.1 Control philosophy and division of labourOur control philosophy is implemented hierarchically. Three levels of system hierarchy are implemented, with two levels of decision making. There is no communication between equipment on the same level. Interaction between levels occurs by upwards transfer of information regarding the status of the subsystems and downwards transfer of commands. This is shown in Fig. 1 where at level 1 is the central station microcomputer and is the ultimate decision maker (when not in manual mode). At level 2 are the local controllers, which reside in the local stations. At level 3 are the actual detectors and actuators.A manual mode of operation is provided at all levels.Information regarding the status of all detectors is transmitted on a per area basis to the local controllers. Their information is condensed and transmitted upward to the central microcomputer. Transfer of status is always unidirectional and upwards. Transfer of commands is always unidirectional and downwards, with expansion at the local control level. This approach preserves the strict rules of the hierarchy for exact monitoring detection and alarm systems associated with high risk plants.classification of the two layers of controls is based upon layers of decision making, with respect to the facts that(a) When the decision time comes, the making and implementation of a decision cannot be postponed(b) The decisions have uncertainty(c) It will isolate local decisions (e.g. locally we might have an alarm although there may be a fault with the system)2 General hardwareI :Fig. 2 depicts our design in the simplest of forms. The system uses an open party line approach with four conductor cables going in a loop shared by all the remote devices and the control panel. This approach is simple in concept and is economically feasible. However, one major disadvantage is the dependency on a single cable for power and signaling. In cases where reliability is of extreme importance,two or even three cables taking differentroutes throughout the system may be connected in parallel. Fig. 3 gives the driver circuitry required to derive an expandable bus. This design takes advantage of recent advances in the single chip microcomputer technology to reduce the interface between the central station and the local stations.2. 1CentralcontroltaskAcentral unit provides acentralized point tomonitor and controlthe system activities. In the system to be described the central control unit serves a fivefold purpose.(i) It receives information from the local stations and operates the alarms and other output devices.(ii) It notifies the operator in case of system malfunction.(iii) It provides an overall system control manual and automatic.(iu) It provides a system test point of local stations and itself.(u) It provides a central point for observation, learning and adaptation.2.2 Local stationsThe local stations can take local decisions regarding recognition of a risk situation, and act independently on local affairs. In this technique we depend on ‘load-type coordination’, e.g. the lower level units recognize the existence of other decision units on the same level; the central or the top level provides the lower units with a model of the relationship between its action and the response of the system.It is evident that a powerful machine is required at this stage so that all the required functions can be implemented. The availability of the new generation of microchips makes this architecture a feasible solution.A single chip microcomputer was chosen over discrete digital and analogue devices to interface to the field devices and to the central microcomputer. This is the main reason that previously this approach was not feasible.In selecting the microcomputer for the local stations, the criterion was the requirement for a chip which contains the most integration of the analogue and digital ports required for the interface and the utilization of CMOS technology owing to remoteness of the local stations. The choice was the Motorola 68HC11A4, for the following reasons:(a) It is CMOS technology; this reduces power consumption.(b) It has a UART on board; this facilitates serial communication.(e) It has an a/d converter on board; this eliminates an external A/D.(d) It has 4K of ROM, 256 bytes of RAM, 512 bytes of EERROM with 40 1/0 lines and a 16 bit timer; this satisfied all our memory and 1/0 requirements at the local station side.3 System implementationThe local station: Fig. 3 is the block diagram of the circuit used to utilize the MC68HCllA4 as a remote fire detecting circuit while Fig. 4 illustrates the same circuit in an expanded form. It can be seen that the single microcontroller can be used to monitor more than one detector, thus reducing system cost.The loop power supply, which is usually between 28 and 26 V, is further regulated by a 5 V 100 mA monolithic low power voltage regulator to supply power to the microcontroller. The onboard oscillator,coupled with anexternal crystalof 2.4576 MHz,supplies themicrocontrollerwith its timingsignal which isdividedinternally by fourto yield a processor frequency of 614.4 kHz, which is an even multiple of the RS 232 [7] baud rate generator. In this Section the term ‘supervised input or output’ will be used to mean that the function in question is monitored for open- and short-circuit conditions in addition to its other normal functions. More information can be found in Reference 9.4 Main loop5 ConclusionThis paper describes the development of a large scale fire detection and alarm system using multi-single chip microcomputers. The architecture used is a two-level hierarchy of decision making. This architecture is made possible by the new CMOS microcontrollers which represent a high packing density at a low power consumption yet are powerful in data processing and thus in decision making. Each local station could make an autonomous decision if the higher level of hierarchy allows it to do so. It has been tried to keep the system design in general format so it can be adapted to varying situations. A prototype of the described system has been built and tested [10]. The control part of the central station is implemented with a development card based on MC 68000 microprocessor (MEX 68KECB, by Motorola), which has a built-in monitor called Tutor. The application programs were developed using the features provided by this monitor. The local stations’ controllers were designed using the MC 68705R3, single-chip microcontroller.7 References1 ‘Fire protection guidelines for nuclear power plants’, US NRC Regulatory Guide 1.1202 BAGCHI, C.N.: ‘A multi-level distributed microprocessor system for a nuclear power plant fire protection system controls, monitoring, and communication’, IEEE Trans., 19823 PUCILL, P.M.: ‘Fire hazard protection, detection and monitoring systems’, Sea. Con, 2,Proceedings of Symposium on ADV in offshore and terminal measurement and control systems, Brighton, England, March 1979, pp. 353-3634 HEAVISID, L.: ‘Offshore fire and explosion detection and fixed fire’. Offshore Technological Conference, 12th Annual Proceedings, Houston, Texas, May 1980, pp. 509-5225 CELLENTANI, E.N., and HUMPHREY, W.Y.: ‘Coordinated detect ion/communication approach to fire protection’, Specify: Eng.,6 ‘Motorola Microprocessors Data Manual’ (Motorola Semiconductor Products, Austin, Texas, USA)7 Electronic Industries Association : ‘Interface between data terminal equipment and data communic ation equipment employing serial binary data interchange’ (EIA Standard RS-232, Washington, DC, 1969)8 MESAROVIC, M.D., MACKO, D., TAKAHARA, Y.: ‘Theory of hierarchical multilevel systems’ (Academic Press, 1970)9 KASSEM, M.: ‘Fire alarm systems’, MSc. th esis, Dept. of Elec. & Comp. Eng., Concordia University, Montreal, Canada, 198510 LIE, P., and KOTAMARTI, U.: ‘The design of a fire alarm system using microprocessors’, C481 Project, Dept. of Elec. and Comp. Eng., Concordia University, Montreal, Canada, 1986译文基于单片机的火灾探测和监控系统A.J. AI-Khalili, MSc, PhDD. AI-Khalili, MSc, PhDM.S. Khassem, MSc关键词：危险，设计，设备状态监测摘要：火灾探测及报警监控已成为一个复杂而完整的体系。

建筑防火中英文对照外文翻译文献

中英文对照外文翻译(文档含英文原文和中文翻译)外文文献:Designing Against Fire Of BulidingABSTRACT:This paper considers the design of buildings for fire safety. It is found that fire and the associ- ated effects on buildings is significantly different to other forms of loading such as gravity live loads, wind and earthquakes and their respective effects on the building structure. Fire events are derived from the human activities within buildings or from the malfunction of mechanical and electrical equipment provided within buildings to achieve a serviceable environment. It is therefore possible to directly influence the rate of fire starts within buildings by changing human behaviour, improved maintenance and improved design of mechanical and electricalsystems. Furthermore, should a fire develops, it is possible to directly influence the resulting fire severity by the incorporation of fire safety systems such as sprinklers and to provide measures within the building to enable safer egress from the building. The ability to influence the rate of fire starts and the resulting fire severity is unique to the consideration of fire within buildings since other loads such as wind and earthquakes are directly a function of nature. The possible approaches for designing a building for fire safety are presented using an example of a multi-storey building constructed over a railway line. The design of both the transfer structure supporting the building over the railway and the levels above the transfer structure are considered in the context of current regulatory requirements. The principles and assumptions associ- ated with various approaches are discussed.1 INTRODUCTIONOther papers presented in this series consider the design of buildings for gravity loads, wind and earthquakes.The design of buildings against such load effects is to a large extent covered by engineering based standards referenced by the building regulations. This is not the case, to nearly the same extent, in the case of fire. Rather, it is building regulations such as the Building Code of Australia (BCA) that directly specify most of the requirements for fire safety of buildings with reference being made to Standards such as AS3600 or AS4100 for methods for determining the fire resistance of structural elements.The purpose of this paper is to consider the design of buildings for fire safety from an engineering perspective (as is currently done for other loads such as wind or earthquakes), whilst at the same time,putting such approaches in the context of the current regulatory requirements.At the outset,it needs to be noted that designing a building for fire safety is far more than simply considering the building structure and whether it has sufficient structural adequacy.This is because fires can have a direct influence on occupants via smoke and heat and can grow in size and severity unlike other effects imposed on the building. Notwithstanding these comments, the focus of this paper will be largely on design issues associated with the building structure.Two situations associated with a building are used for the purpose of discussion. The multi-storey office building shown in Figure 1 is supported by a transfer structure that spans over a set of railway tracks. It is assumed that a wide range of rail traffic utilises these tracks including freight and diesel locomotives. The first situation to be considered from a fire safety perspective is the transfer structure.This is termed Situation 1 and the key questions are: what level of fire resistance is required for this transfer structure and how can this be determined? This situation has been chosen since it clearly falls outside the normal regulatory scope of most build-ing regulations. An engineering solution, rather than a prescriptive one is required. The second fire situation (termed Situation 2) corresponds to a fire within the office levels of the building and is covered by building regulations. This situation is chosen because it will enable a discussion of engineering approaches and how these interface with the building regulations–since both engineering and prescriptive solutions are possible.2 UNIQUENESS OF FIRE2.1 IntroductionWind and earthquakes can be considered to b e “natural” phenomena o ver which designers have no control except perhaps to choose the location of buildings more carefully on the basis of historical records and to design building to resist sufficiently high loads or accelerations for the particular location. Dead and live loads in buildings are the result of gravity. All of these loads are variable and it is possible (although generally unlikely) that the loads may exceed the resistance of the critical structural members resulting in structural failure.The nature and influence of fires in buildings are quite different to those associated with other“loads” to which a building may be subjected to. The essential differences are described in the following sections.2.2 Origin of FireIn most situations (ignoring bush fires), fire originates from human activities within the building or the malfunction of equipment placed within the building to provide a serviceable environment. It follows therefore that it is possible to influence the rate of fire starts by influencing human behaviour, limiting and monitoring human behaviour and improving the design of equipment and its maintenance. This is not the case for the usual loads applied to a building.2.3 Ability to InfluenceSince wind and earthquake are directly functions of nature, it is not possible to influence such events to any extent. One has to anticipate them and design accordingly. It may be possible to influence the level of live load in a building by conducting audits and placing restrictions on contents. However, in the case of a fire start, there are many factors that can be brought to bear to influence the ultimate size of the fire and its effect within the building. It is known that occupants within a building will often detect a fire and deal with it before it reaches a sig- nificant size. It is estimated that less than one fire in five (Favre, 1996) results in a call to the fire brigade and for fires reported to the fire brigade, the majority will be limited to the room of fire origin. In oc- cupied spaces, olfactory cues (smell) provide powerful evidence of the presence of even a small fire. The addition of a functional smoke detection system will further improve the likelihood of detection and of action being taken by the occupants.Fire fighting equipment, such as extinguishers and hose reels, is generally provided within buildings for the use of occupants and many organisations provide training for staff in respect of the use of such equipment.The growth of a fire can also be limited by automatic extinguishing systems such as sprinklers, which can be designed to have high levels of effectiveness.Fires can also be limited by the fire brigade depending on the size and location of the fire at the time of arrival. 2.4 Effects of FireThe structural elements in the vicinity of the fire will experience the effects of heat. The temperatures within the structural elements will increase with time of exposure to the fire, the rate of temperature rise being dictated by the thermal resistance of the structural element and the severity of the fire. The increase in temperatures within a member will result in both thermal expansion and,eventually,a reduction in the structural resistance of the member. Differential thermal expansion will lead to bowing of a member. Significant axial expansion will be accommodated in steel members by either overall or local buckling or yielding of local- ised regions. These effects will be detrimental for columns but for beams forming part of a floorsystem may assist in the development of other load resisting mechanisms (see Section 4.3.5).With the exception of the development of forces due to restraint of thermal expansion, fire does not impose loads on the structure but rather reduces stiffness and strength. Such effects are not instantaneous but are a function of time and this is different to the effects of loads such as earthquake and wind that are more or less instantaneous.Heating effects associated with a fire will not be significant or the rate of loss of capacity will be slowed if:(a) the fire is extinguished (e.g. an effective sprinkler system)(b) the fire is of insufficient severity – insufficient fuel, and/or(c)the structural elements have sufficient thermal mass and/or insulation to slow the rise in internal temperatureFire protection measures such as providing sufficient axis distance and dimensions for concrete elements, and sufficient insulation thickness for steel elements are examples of (c). These are illustrated in Figure 2.The two situations described in the introduction are now considered.3 FIRE WITHIN BUILDINGS3.1 Fire Safety ConsiderationsThe implications of fire within the occupied parts of the office building (Figure 1) (Situation 2) are now considered. Fire statistics for office buildings show that about one fatality is expected in an office building for every 1000 fires reported to the fire brigade. This is an order of magnitude less than the fatality rate associated with apartment buildings. More than two thirds of fires occur during occupied hours and this is due to the greater human activity and the greater use of services within the building. It is twice as likely that a fire that commences out of normal working hours will extend beyond the enclosure of fire origin.A relatively small fire can generate large quantities of smoke within the floor of fire origin.If the floor is of open-plan construction with few partitions, the presence of a fire during normal occupied hours is almost certain to be detected through the observation of smoke on the floor. The presence of full height partitions across the floor will slow the spread of smoke and possibly also the speed at which the occupants detect the fire. Any measures aimed at improving housekeeping, fire awareness and fire response will be beneficial in reducing the likelihood of major fires during occupied hours.For multi-storey buildings, smoke detection systems and alarms are often provided to give “automatic” detection and warning to the occupants. An alarm signal is also transm itted to the fire brigade.Should the fire not be able to be controlled by the occupants on the fire floor, they will need to leave the floor of fire origin via the stairs. Stair enclosures may be designed to be fire-resistant but this may not be sufficient to keep the smoke out of the stairs. Many buildings incorporate stair pressurisation systems whereby positive airflow is introduced into the stairs upon detection of smoke within the building. However, this increases the forces required to open the stair doors and makes it increasingly difficult to access the stairs. It is quite likely that excessive door opening forces will exist(Fazio et al,2006)From a fire perspective, it is common to consider that a building consists of enclosures formed by the presence of walls and floors.An enclosure that has sufficiently fire-resistant boundaries (i.e. walls and floors) is considered to constitute a fire compartment and to be capable of limiting the spread of fire to an adjacent compartment. However, the ability of such boundaries to restrict the spread of fire can be severely limited by the need to provide natural lighting (windows)and access openings between the adjacent compartments (doors and stairs). Fire spread via the external openings (windows) is a distinct possibility given a fully developed fire. Limit- ing the window sizes and geometry can reduce but not eliminate the possibility of vertical fire spread.By far the most effective measure in limiting fire spread, other than the presence of occupants, is an effective sprinkler system that delivers water to a growing fire rapidly reducing the heat being generated and virtually extinguishing it.3.2 Estimating Fire SeverityIn the absence of measures to extinguish developing fires, or should such systems fail; severe fires can develop within buildings.In fire engineering literature, the term “fire load” refers to the quantity of combustibles within an enclosure and not the loads (forces) applied to the structure during a fire. Similarly, fire load density refers to the quantity of fuel per unit area. It is normally expressed in terms of MJ/m2or kg/m2 of wood equivalent. Surveys of combustibles for various occupancies (i.e offices, retail, hospitals, warehouses, etc)have been undertaken and a good summary of the available data is given in FCRC (1999). As would be expected, the fire load density is highly variable. Publications such as the International Fire Engineering Guidelines (2005) give fire load data in terms of the mean and 80th percentile.The latter level of fire load density is sometimes taken as the characteristic fire load density and is sometimes taken as being distributed according to a Gumbel distribution (Schleich et al, 1999).The rate at which heat is released within an enclosure is termed the heat release rate (HRR) and normally expressed in megawatts (MW). The application of sufficient heat to a combustible material results in the generation of gases some of which are combustible. This process is called pyrolisation.Upon coming into contact with sufficient oxygen these gases ignite generating heat. The rate of burning(and therefore of heat generation) is therefore dependent on the flow of air to the gases generated by the pyrolising fuel.This flow is influenced by the shape of the enclosure (aspect ratio), and the position and size of any potential openings. It is found from experiments with single openings in approximately cubic enclosures that the rate of burning is directly proportional to A h where A is the area of the opening and h is the opening height. It is known that for deep enclosures with single openings that burning will occur initially closest to the opening moving back into the enclosure once the fuel closest to the opening is consumed (Thomas et al, 2005). Significant temperature variations throughout such enclosures can be expected.The use of the word ‘opening’ in relation to real building enclosures refers to any openings present around the walls including doors that are left open and any windows containing non fire-resistant glass.It is presumed that such glass breaks in the event of development of a significant fire. If the windows could be prevented from breaking and other sources of air to the enclosure limited, then the fire would be prevented from becoming a severe fire.Various methods have been developed for determining the potential severity of a fire within an enclosure.These are described in SFPE (2004). The predictions of these methods are variable and are mostly based on estimating a representative heat release rate (HRR) and the proportion of total fuel ςlikely to be consumed during the primary burning stage (Figure 4). Further studies of enclosure fires are required to assist with the development of improved models, as the behaviour is very complex.3.3 Role of the Building StructureIf the design objectives are to provide an adequate level of safety for the occupants and protection of adjacent properties from damage, then the structural adequacy of the building in fire need only be sufficient to allow the occupants to exit the building and for the building to ultimately deform in a way that does not lead to damage or fire spread to a building located on an adjacent site.These objectives are those associated with most building regulations including the Building Code of Australia (BCA). There could be other objectives including protection of the building against significant damage. In considering these various objectives, the following should be taken into account when considering the fire resistance of the building structure.3.3.1 Non-Structural ConsequencesSince fire can produce smoke and flame, it is important to ask whether these outcomes will threaten life safety within other parts of the building before the building is compromised by a loss of structural adequacy? Is search and rescue by the fire brigade not feasible given the likely extent of smoke? Will the loss of use of the building due to a severe fire result in major property and income loss? If the answer to these questions is in the affirmative, then it may be necessary to minimise the occurrence of a significant fire rather than simply assuming that the building structure needs to be designed for high levels of fire resistance. A low-rise shopping centre with levels interconnected by large voids is an example of such a situation.3.3.2 Other Fire Safety SystemsThe presence of other systems (e.g. sprinklers) within the building to minimise the occurrence of a serious fire can greatly reduce the need for the structural elements to have high levels of fire resistance. In this regard, the uncertainties of all fire-safety systems need to be considered. Irrespective of whether the fire safety system is the sprinkler system, stair pressurisation, compartmentation or the system giving the structure a fire-resistance level (e.g. concrete cover), there is an uncertainty of performance. Uncertainty data is available for sprinkler systems(because it is relatively easy to collect) but is not readily available for the other fire safety systems. This sometimes results in the designers and building regulators considering that only sprinkler systems are subject to uncertainty. In reality, it would appear that sprinklers systems have a high level of performance and can be designed to have very high levels of reliability.3.3.3 Height of BuildingIt takes longer for a tall building to be evacuated than a short building and therefore the structure of a tall building may need to have a higher level of fire resistance. The implications of collapse of tall buildings on adjacent properties are also greater than for buildings of only several storeys.3.3.4 Limited Extent of BurningIf the likely extent of burning is small in comparison with the plan area of the building, then the fire cannot have a significant impact on the overall stability of the building structure. Examples of situations where this is the case are open-deck carparks and very large area building such as shopping complexes where the fire-effected part is likely to be small in relation to area of the building floor plan.3.3.5 Behaviour of Floor ElementsThe effect of real fires on composite and concrete floors continues to be a subject of much research.Experimental testing at Cardington demonstrated that when parts of a composite floor are subject to heating, large displacement behaviour can develop that greatly assists the load carrying capacity of the floor beyond that which would predicted by considering only the behaviour of the beams and slabs in isolation.These situations have been analysed by both yield line methods that take into account the effects of membrane forces (Bailey, 2004) and finite element techniques. In essence, the methods illustrate that it is not necessary to insulate all structural steel elements in a composite floor to achieve high levels of fire resistance.This work also demonstrated that exposure of a composite floor having unprotected steel beams, to a localised fire, will not result in failure of the floor.A similar real fire test on a multistory reinforced concrete building demonstrated that the real structural behaviour in fire was significantly different to that expected using small displacement theory as for normal tempera- ture design (Bailey, 2002) with the performance being superior than that predicted by considering isolated member behaviour.3.4 Prescriptive Approach to DesignThe building regulations of most countries provide prescriptive requirements for the design of buildings for fire.These requirements are generally not subject to interpretation and compliance with them makes for simpler design approval–although not necessarily the most cost-effective designs.These provisions are often termed deemed-to-satisfy (DTS) provisions. All aspects of designing buildings for fire safety are covered–the provision of emergency exits, spacings between buildings, occupant fire fighting measures, detection and alarms, measures for automatic fire suppression, air and smoke handling requirements and last, but not least, requirements for compartmentation and fire resistance levels for structural members. However, there is little evidence that the requirements have been developed from a systematic evaluation of fire safety. Rather it would appear that many of the requirements have been added one to another to deal with another fire incident or to incorporate a new form of technology. There does not appear to have been any real attempt to determine which provision have the most significant influence on fire safety and whether some of the former provisions could be modified.The FRL requirements specified in the DTS provisions are traditionally considered to result in member resistances that will only rarely experience failure in the event of a fire.This is why it is acceptable to use the above arbitrary point in time load combination for assessing members in fire. There have been attempts to evaluate the various deemed-to-satisfy provisions (particularly the fire- resistance requirements)from a fire-engineering perspective taking into account the possible variations in enclosure geometry, opening sizes and fire load (see FCRC, 1999).One of the outcomes of this evaluation was the recognition that deemed-to- satisfy provisions necessarily cover the broad range of buildings and thus must, on average, be quite onerous because of the magnitude of the above variations.It should be noted that the DTS provisions assume that compartmentation works and that fire is limited to a single compartment. This means that fire is normally only considered to exist at one level. Thus floors are assumed to be heated from below and columns only over one storey height.3.5 Performance-Based DesignAn approach that offers substantial benefits for individual buildings is the move towards performance-based regulations. This is permitted by regulations such as the BCA which state that a designer must demonstrate that the particular building will achieve the relevant performance requirements. The prescriptive provisions (i.e. the DTS provisions) are presumed to achieve these requirements. It is necessary to show that any building that does not conform to the DTS provisions will achieve the performance requirements.But what are the performance requirements? Most often the specified performance is simply a set of performance statements (such as with the Building Code of Australia)with no quantitative level given. Therefore, although these statements remind the designer of the key elements of design, they do not, in themselves, provide any measure against which to determine whether the design is adequately safe.Possible acceptance criteria are now considered.3.5.1 Acceptance CriteriaSome guidance as to the basis for acceptable designs is given in regulations such as the BCA. These and other possible bases are now considered in principle.(i)compare the levels of safety (with respect to achieving each of the design objectives) of the proposed alternative solution with those asso- ciated with a corresponding DTS solution for the building.This comparison may be done on either a qualitative or qualitative risk basis or perhaps a combination. In this case, the basis for comparison is an acceptable DTS solution. Such an approach requires a “holistic” approach to safety whereby all aspects relevant to safety, including the structure, are considered. This is, by far, the most common basis for acceptance.(ii)undertake a probabilistic risk assessment and show that the risk associated with the proposed design is less than that associated with common societal activities such as using pub lic transport. Undertaking a full probabilistic risk assessment can be very difficult for all but the simplest situations.Assuming that such an assessment is undertaken it will be necessary for the stakeholders to accept the nominated level of acceptable risk. Again, this requires a “holistic” approach to fire safety.(iii) a design is presented where it is demonstrated that all reasonable measures have been adopted to manage the risks and that any possible measures that have not been adopted will have negligible effect on the risk of not achieving the design objectives.(iv) as far as the building structure is concerned,benchmark the acceptable probability of failure in fire against that for normal temperature design. This is similar to the approach used when considering Building Situation 1 but only considers the building structure and not the effects of flame or smoke spread. It is not a holistic approach to fire safety.Finally, the questions of arson and terrorism must be considered. Deliberate acts of fire initiation range from relatively minor incidents to acts of mass destruction.Acts of arson are well within the accepted range of fire events experienced by build- ings(e.g. 8% of fire starts in offices are deemed "suspicious"). The simplest act is to use a small heat source to start a fire. The resulting fire will develop slowly in one location within the building and will most probably be controlled by the various fire- safety systems within the building. The outcome is likely to be the same even if an accelerant is used to assist fire spread.An important illustration of this occurred during the race riots in Los Angeles in 1992 (Hart 1992) when fires were started in many buildings often at multiple locations. In the case of buildings with sprinkler systems,the damage was limited and the fires significantly controlled.Although the intent was to destroy the buildings,the fire-safety systems were able to limit the resulting fires. Security measures are provided with systems such as sprinkler systems and include:- locking of valves- anti-tamper monitoring- location of valves in secure locationsFurthermore, access to significant buildings is often restricted by security measures.The very fact that the above steps have been taken demonstrates that acts of destruction within buildings are considered although most acts of arson do not involve any attempt to disable the fire-safety systems.At the one end of the spectrum is "simple" arson and at the other end, extremely rare acts where attempts are made to destroy the fire-safety systems along with substantial parts of thebuilding.This can be only achieved through massive impact or the use of explosives. The latter may be achieved through explosives being introduced into the building or from outside by missile attack.The former could result from missile attack or from the collision of a large aircraft. The greater the destructiveness of the act,the greater the means and knowledge required. Conversely, the more extreme the act, the less confidence there can be in designing against such an act. This is because the more extreme the event, the harder it is to predict precisely and the less understood will be its effects. The important point to recognise is that if sufficient means can be assembled, then it will always be possible to overcome a particular building design.Thus these acts are completely different to the other loadings to which a building is subjected such as wind,earthquake and gravity loading. This is because such acts of destruction are the work of intelligent beings and take into account the characteristics of the target.Should high-rise buildings be designed for given terrorist activities,then terrorists will simply use greater means to achieve the end result.For example, if buildings were designed to resist the impact effects from a certain size aircraft, then the use of a larger aircraft or more than one aircraft could still achieve destruction of the building. An appropriate strategy is therefore to minimise the likelihood of means of mass destruction getting into the hands of persons intent on such acts. This is not an engineering solution associated with the building structure.It should not be assumed that structural solutions are always the most appropriate, or indeed, possible.In the same way, aircrafts are not designed to survive a major fire or a crash landing but steps are taken to minimise the likelihood of either occurrence.The mobilization of large quantities of fire load (the normal combustibles on the floors) simultaneously on numerous levels throughout a building is well outside fire situations envisaged by current fire test standards and prescriptive regulations. Risk management measures to avoid such a possibility must be considered.4 CONCLUSIONSFire differs sign ificantly from other “loads” such as wind, live load and earthquakes in respect of its origin and its effects.Due to the fact that fire originates from human activities or equipment installed within buildings, it is possible to directly influence the potential effects on the building by reducing the rate of fire starts and providing measures to directly limit fire severity.The design of buildings for fire safety is mostly achieved by following the prescriptive requirements of building codes such as the BCA. For situations that fall outside of the scope of such regulations, or where proposed designs are not in accordance with the prescriptive requirements, it is possible to undertake performance-based fire engineering designs.However,。

可燃气体报警器中英文对照外文翻译文献

可燃气体报警器中英文对照外文翻译文献(文档含英文原文和中文翻译)原文：Design of Combustible Gas Detection system using WirelessKeywords:TGS813, AT89S52, DS18B20, nRF905, TC35iAbstract.The detection device of combustible gas are designed in the presented work,using wireless transceiver and GSM network.The system realize the wireless transmission of the gas concentration,and also can send alarm information to user’s mobile when an exception occurs.The system consists of two parts: a master and slave. The function of the slave is to collect data, process data and transffer the data to the master.The taskof the master is to receive data and display it by LED.The signal acquisition is completed by sensor TGS813 and A/D converter TLC2543. Thewireless transmission is achieved through wireless transceiver nRF905. Since the accuracy of thesensor is affected by the environment,using DS18B20 to achieve temperature compensation.And with wireless communication module TC35i and GSM network platform, we can send thealarm information to use r’s mobile promptly.IntroductionGas detection is widely used in petroleum, chemical, metallurgy, family, shopping malls,gas stations and other places. Currently, how to monitor the hazardous gas fast and accuratelyare the important issues. Although the gas detection technology is relatively mature, but mostproducts has many shortcomings, such as single function, operating complex, bulky, expensiveand low sensitivity. Wireless communication technology applied to the gas monitoring field, canresolve the problem of remote monitoring in special environment, such as high temperature, low temperature, toxic gas.and unable to wiring .In the presented work, the combustible gas detectoris fully functional (with wireless transceiver), simple, small size, low cost, and has high sensitivity. The equipment can greatlyimprove the system's detection capability and accuracy with temperature compensation algorithm, and also can send alarm information to the user's mobile phone promptly through theGSM network.System designThe system consists of two parts as shown in Figure 1.Fig. 1 Overall system block diagramThe slave part mainly complete data collection and wireless transmission. The master part mainly complete receiving data, displaying and sending alarm message.The signal of gas concentration is collected by combustible gas sensor which generates a weak electrical signal. The signal can be amplified and stabilized by conditioning circuit. And then A/D circuit converts the analog signal to digital signal which microcontroller can process. In order to improve the measurement accuracy, and reduce the impact of temperature, design a temperature compensation circuit to collect tempreture data. AT89S52 process the collected data and send data to the master by wireless transceiver.The master receives the data and displays it by LED. And if the gas concentration being abnormal,the system will drive speaker for an alarm signal and use TC35i module to send alarm information to user’s mobile.Hardware designSignal acquisition and conditioning circuit. Figure 2 shows data acquisition circuit. TGS813 is a Gas sensing resistive sensor. The conductivity of TGS813 is influenced by the concentration of combustible gases in air, the greater the concentration, the higher conductivity. In system R0, R9, R10 and RS (inTGS813) form a bridge circuit to convert resistance to voltage signal. Operational amplifier A connected as a voltage follower with resistors R7 and regulator D1 make up the voltage regulator circuit to supply power for the bridge. In order to the voltage adapt to the A/D converter, the voltage is amplified by opamp B, and the magnification can be adjusted through resistor R11.Fig. 2 Gas concentration signal acquisition circuitFig. 3 Temperature compensation circuitTemperature compensation circuit. The resistance of Rs is greatly affected by temperature. In order to improve system accuracy, the results must be temperature compensated or temperature correction.In system, using temperature sensor DS1820 to collect temperature signal, and using software method for temperature correction.Wireless transmission module. Wireless transceiver is achieved by a single-chip RF transceiver nRF905. MCU and nRF905 realize data and commands interaction through the SPI interface.The typical application schematic is shown in Figure 4. The antenna part is 50Ω single-ended antenna.The communication frequency is 433MHz, and operating voltage is3.3V. The value of resistors,capacitors and inductor is determined by the datasheet of nRF905. GSM short message unit. The interface circuit of TC35i and MCU is shown in Figure 5. The communication between MCU and TC35i is via serial, and the rate is 9600bps. Communicationsmode is 8-bit asynchronous with a start bit, 8 data bits, and 1 stop bit. But the serial input of TC35i requires CMOS level, and serial output of 89C52 requires TTL level. In order to achieve the voltage conversion the system use the way of resistors sharing voltage. Fig. 4 nRF905 Application SchematicFig. 5 TC35i and MCU interface circuitSoftware DesignThe software system includes data acquisition module, temperature compensation module, and wireless transceiver moduleWireless sending program. NRF905 data sending process is as follows:1) When having data to send, the microcontroller send the receiver's address and the data to nRF905 chronologically by the SPI interface.Then placed the data to be transmitted into TxBuf register, send WTP command to write the data to TX-Payload register, and send WTA command to write TX address to the TX-Address register.2) The microcontroller set TRX_CE=1 and TX_EN=1 to stimulate nRF905 ShockBurstTM sending mode. When data transmission completed, the data ready pin is set high;3) Beacause of AUTO_RETRAN being high, the data of nRF905 is constantly re-issued untilTRX_CE=0.4) when TRX_CE pin is set low, means the data transmission completed and nRF905 enter idlemode.Wireless receiving program. NRF905 data receiving process is as follows:1)When TRX_CE = 1 and TX_EN = 0, nRF905 enters ShockBurstTM receive modechecking constantly and waiting for receiving data.2)When nRF905 detect the carrier having same frequency band, the carrier detect pin will beset high.3)When nRF905 receive a matched address, the address matches pin will be set high.4) When packet correctly received, the word head, address and CRC bits will automatically be removed, and the data ready pin will be set high.5) MCU set TRX_CE to "0", and nRF905 enter to idle mode.6) When all the data received, nRF905 set data ready pin and address matching pin to "0", and nRF905 turn to shutdown mode or ShockBurstTM transmitmode and receive mode.Fig.6 Wireless data transmission flow chartFig.7 Wireless data receiving flow chartSummaryDesigned an equipment to detect the concentration of combustible gas, which has wireless transceiver functions and can send the alarm information to user’s mobile promptly through GSM.Experimental results show that the devices have high precision, stability and reliability. It can meet most applications which need real-time monitoring of combustible gas concentration.References[1] Liu S, Chen Q, Wang H G, eat. Electrical capacitance tomography for gas solids flow measurement for circulating fluidized beds [J].Flow Measurement and Instrumentation，2005，16(2-3):135-144.[2] TGS 813-for the Detection of Combustible Gases [DB/OL].2009-08-12.[3] Liu Wei, Chen HeXin，Zhang JunWei，etc. Intelligent control and alarm system based on TC35i. IEEE.2008 International Symposium on Computer Science and Computational Technology(ISCSCT), Shanghai, 2008:80-83译文:使用无线的可燃气体检测系统的设计关键词：TGS813，AT89S52单片机，DS18B20，nRF905，TC35i摘要；可燃气体检测装置是在所提出的工作设计，使用无线收发器和GSM网络。

中英文对照表--------------消防专业

中英文对照表--------------消防专业中英文对照表--------------消防专业abandonment 离弃（指见死不救的行为）abatement of smoke 消减烟雾（法）ABC extinguisher [消]ABC灭火器（能用来扑灭A、B、C类火灾的灭火器）ABC method 心肺复苏法ABC powder extinguishing agent [消]ABC 干粉灭火剂（适用于扑救A类、B类和C类火灾的干粉灭火剂）ablation characteristics 烧蚀特征ablation of melting body 熔融物体的烧蚀ablation-product radiation 烧蚀生成物的辐射abnormal combustion 异常燃烧（发动机爆震，早燃等不正常的总称）abnormal condition 反常情况，不正常状态，非正常状态absolute temperature 绝对温度absolute temperature scale 绝对温标absorbed gas 吸收状态气体（或瓦斯）absorbent for confining spills 限制溢出物蔓延的吸收性材料Acceptance check and reception systems of plant 设备验收交接制度Acceptance regulation of equipment repair quality 设备修理质量验收制度Accessible Means of Egress 易通行的疏散通道Accident due to quality 质量事故Accident management regulation of plant 设备事故管理制度Accommodation stairway 简易楼梯acousto-optic effect 声光效应Added value rate of plant assets 设备资产增值率Addressable alarm system 可编程（址）报警系统Adjustable piston valve 活动式汽阀Adjustable pressure limiting valve 可调限压阀Adjustable retrictor valve 可调节流阀Aerial extinguisher 航空灭火装置Aerial ladder fire truck 云梯消防车Afterbirth-like crystal 胞状晶Agricultural fire pump 农用消防泵Air inlet 进风口Air lift pump 气泡泵Air pressure balance for fire control 均压防灭火Air－foam fire branch 空气泡沫枪Air-lift pump 气升泵Airport crash fire vehicle 机场消防车Alarm 报警Alarm （in control room）（控制室内）报警Alarm and protection system 报警保护系统Alarm device 报警装置Alarm display panel 报警显示器Alarm for voltage 电压报警器Alarm gamma ray survey 报警器伽玛测量Alarm of fire 火灾警报Alarm pressure 报警压力Alarm signal 报警信号Alarm system 报警系统Alarm unit 报警单元Alcohol resistant foam concentrate 抗溶泡沫液Alert data 报警数据Amino group powder 氨基干粉An1quan2fang1mian4de5wei1xian3 安全方面的危险Analog warning accuracy 模拟报警精度analog warning test 模拟报警试验analogue detection and alarm system 模拟量探测报警系统Ancient and rare trees 古树名木Annular pressure loss 环空泵压损失Anti-burning mechanical draft cooling tower 阻燃型冷却塔Anti-collision warning device 防碰报警装置Appliance carrying fire vehicle 器材消防车Aqueous film forming foam concentrate 水成膜泡沫液arc resistance 耐电弧性Area of Refuge 避难区域Areal （departmental）repair center 地区（部门）修理中心Arson 放火Automatic explosion suppression system 自动抑爆系统Automatic fire a1arm system 火灾自动报警系统Automatic fire alarm system 火灾自动报警系统automatic fire equipment 自动消防设备Automatic fire signa1 自动火灾信号automatic light control 自动光强控制装置Automatic sprinkling fire extinguishing system 自动喷水灭火系统Auxiliary fire vehicle 后援消防车average deviation 平均偏差Average pump pressure 平均泵压a.a.r against all risk 综合险，保一切险，保全险AA auto-alarm 自动报警AAB Aircraft Accident Board 飞行事故调查委员会AAC automat and automatical control 自动装置和自动控制AACC American automatic control council 美国自动控制委员会AACC American Association for Contamination control 美国控制污染协会AAE American Association of Engineers 美国工程师协会AAEC Australian Atomic Energy commission 澳大利亚原子能委员会AAEE American Association of Electrical Engineers 美国电气工程师委员会AAJ Architectural Association of Japan 日本建筑协会AAR aircraft accident report 飞机事故报告AAS American Association for the advancement of Science 美国科学促进协会Ab air-breaker 空气断路器baby Bangor [消]小拉梯〈一种没有绳索和滑轮的拉梯，主要用于建筑物内部〉back flame [消]复燃火焰〈熄灭后再燃的火焰〉back pack [消]背包式灭火器〈背负的五加仑灭火器，内装泵，用于扑救草地和灌木丛〉back pack pump tank 背负式带泵灭火器back pack pump tank fire extinguisher [消]小型背负泵式灭火器back pressure valve 止回阀，背压阀back scattering 反向（后向）散射back stair 后楼梯，辅助楼梯back staircase 后楼梯，辅助楼梯间back step [消]（消防车的）后踏板back stopping [矿]上向梯段回采back strack 由原路退回back stretch [消]反向铺设水带back up 1、备用的，候补的2、倒转，回退back-up battery 备用电源back-up breaker 备用断路器Back-up safety functions 辅助安全功能baffle 1、隔板 2、[消]水箱隔板 3、隔火板 4、缓冲板 5、导流叶片 6、遮护物balanced system 1、[消]均衡系统 2、均衡系统，对称系统Balancing pressure on stopping 均压防灭火ball blanket [消]塑料球覆盖层ball cock 浮球阀ball hydrant [消]球形消防栓ballast tank 1、压载水枪 2、压载舱ball-float liquid-level meter 球形浮子液面计Base injection foam extinguishing system 液下喷射泡沫灭火系统Beat fireproof 建防火带Bell character 报警字符Biological Chip 生物芯片biplane butterfly valve 平板蝶阀Blower extinguishment 风机灭火Blow-off valve seat 放水阀座Boiler safety valve 安全阀Boilor check valve seat 止回阀座Branch crystal 树枝晶Budget of installation 安装预算bulk range 喷射距离Burn （Verb）燃烧（动词）Burning behaviour 燃烧性能Bursting 爆裂butterfly valve 蝴蝶阀by-pass valve 旁通阀Cabinet extinguishing equipment 柜式灭火装置Cabinet foam extinguishing eguipment 柜式泡沫灭火装置cabinet foam extinguishing equipment [消]柜式泡沫灭火装置cabinet type hose washing machine [消]柜式洗水带机cable line-type fixed temperature detector [消]缆式线型定温探测器〈采用缆式线结构的线型定温探测器〉cable tray fire break 电缆槽盒阻火物cable vault 电缆进线室cable-tray penetration 电缆槽盒穿透（度）cable-tray temperature sensor 缆式温度传感器calamity damage insurance 火灾保险calculation of probabilities [林]可能性推算calibration criterion 校准标准call back 1、[消]火灾报警箱2、[英]公用电话亭3、[消]召回Calorific potential 潜热能camp boss [林]营地管理员〈负责建立和管理一个消防营地的人〉campaign fire [林]战役火灾〈要花一天以上才能扑灭的森林火灾〉campfire [林]营火camshaft 凸轮轴，分配轴can [口][消]灭火器Canadian Association of fire Chiefs 加拿大消防长官协会Canadian Association of fire Investigators 加拿大火灾调查委员会Canadian Automotive Rescue Society 加拿大汽车救援协会Canadian Centre for Emergency Preparedness 加拿大应急准备中心Candela 坎德拉Capital investment recovery period of plant 设备投资产出比Carbon dioxide extinguishing agent 二氧化碳灭火剂Carbon dioxide extinguishing system 二氧化碳灭火系统Carbon dioxide fire extinguisher 二氧化碳灭火器Carbon dioxide fire vehicle 二氧化碳消防车casting-state structure 铸态组织Catchpit 集流坑Ceiling screen 挡烟垂壁Central alarm station 中央报警站Central fire alarm control unit 集中火灾报警控制器Centralized maintenance 集中维修centrifugal pump 离心泵Centrifugal pump drainage 离心泵排水Centrifugal water pump 离心式水泵Check point 检测点Check valve 止回阀Chemical foam 化学泡沫Chemical reaction extinguisher 化学反应式灭火器Chemical reaction fire extinguisher 化学反应式灭火器Chimney effect 烟囱效应Chip 芯片Chute rail smoke extinguishing system 滑道架式烟雾灭火系统CIF of imported equipment 进口设备到岸价city fire station 城镇消防站city path for fire wehicles 城镇消防通道Claims for equipment 设备索赔Class A A类火Class B B类火Class C C类火Class D D类火class of safety protection 安全防护等级Classified management of plant 设备分级管理CO fire extinguishing system 二氧化碳灭火Cocrystallization 共晶体Coefficient of pump pressure 泵压系数Coercionary service system 强制保养制coercive force 矫顽力Combination of design, manufacturing and operation 设计、制造和使用相结合combination of professional management and mass management 专业管理和群众管理相结合Combination of repair, modernization and renewal 修理、改造和更新相结合Combination of service and planned maintenance 维护和计划检修相结合combination of technical management and economic management 技术管理和经济管理相结合Combination type fire detector 复合式火灾探测器Combined agent extinguishing system 混合灭火系统Combined extinguishing 综合灭火Combined maintenance 混合维修Combined smoke and powder extinguishing system 烟雾干粉联用灭火系统combustibility 可燃性Combustiblc 可燃的Combustion 燃烧Command and communication fire vehicle 通讯指挥消防车Commodity inspection 商检（商品检验）complete discharge 完全喷射Complete set of plant 设备的成套性Complexity coefficient of repair 修理复杂系数Comprehensive utilization ratio of plant 设备综合利用率Compressed air pump drainage 压气泵排水Constitution ratio of plant 设备构成比containment spray system 安全壳喷淋系统[压水堆]contract change and cancellation 合同变更和解除control valve 调节阀Coordinate Bond 配价键Coordination Compound 配位化合物Copper 铜core spray system 堆芯喷淋系统[沸水堆]Corridor 走廊cost for re-building the historical and cultural relics 文物建筑重建费Criticality alarm system 临界报警系统crystal boundary 晶界Crystal particle 晶粒ctric spark 电火花Current consumption at alarm 报警电流current density 电流密度cyindrical plug valve 圆柱形转阀cylindrical crystal 柱状晶cylindrical valve 圆筒阀CAFS compressed air foam system [消]压缩空气泡沫系统dabo 护墙板，墙裙Dahill hoist 达希尔升降机〈一种以压缩气体为动力的升降机〉daily burning cycle [林]日火烧周期〈24小时的燃烧周期，从上午10算起〉daily activity level [林]日常活动等级damage 损害，损失damage area [消]1、烧毁面积 2、受损地区，毁坏地区damage control tender [消]防损车〈用于预防或减少灭火战斗中水渍等损失的消防车〉damage length 烧毁长度〈烧毁面积在特定的方向的最大距离〉damagerous articles package 危险品包装Damkohler number 丹姆克尔数damming 修筑隔墙damp atmosphere 湿大气damp down fire （用沙子灭等）灭火，消火damped 被（瓦斯）窒息的damper control 风门控制装置damposcope 爆炸瓦斯指示器danger index [林]火险指数danger meter [林]火险尺（法）Dangerous Chemical Substances or Hazardous Chemicals 化学危险物品data processing system security 数据处理系统安全性Data security 数据安全Date of residual magnetism 剩磁数据dead air 1、含有大量CO2的空气。

火灾报警器中英文资料外文翻译文献

火灾报警器中英文资料外文翻译文献中英文资料外文翻译文献Multiple single-chip microcomputer approach tofire detection and monitoring systemIndexing term : Hazards, Design, Plant condition monitoring Abstract: A complete system for fire detection and alarm monitoring has been proposed for complex plants. The system uses multiple single chip architecture attached to a party line. The control algorithm is based on a two-level hierarchy of decision making, thus the complexity is distributed. A complete circuit diagram is given for the local and the central station with requirements for the software structure. The design is kept in general form such that it can be adapted to a multitude of plant configurations. It is particularly shown how new developments in technology, especially CMOS single chip devices, are incorporated in the system design to reduce the complexity of the overall hardware, e.g. by decomposing the system such that lower levels of hierarchy are able to have some autonomy in decision making, and thus a more complex decision is solved ina simple distributed method.1 IntroductionRegulatory requirements for most high risk plants and buildings mandate the installation of fire detection and warning systems for all sensitive areas of the plant or the building. Most fire codes state the requirement for monitoring and control specifically related to a type of a plant or building such as chemical plants, petroleum, nuclear plants, residential high-rises etc. A general conclusion of these codes can be specified as thefollowing requirements :(a) The source of all detector signals should be exactly identifiable by the central station(b) An extra path of communication between the central station and all localcontrollers(c) Direct means of control of alarm and central equipment by the central station(d) Means of communication between the central station and the fire department(e) Availability of emergency power supply. The codes usually also specify the types and frequency of tests for all equipment.A fire detection and alarm system is a combination of devices designed to signal an alarm in case of a fire. The system may also accomplish fan control, fire door hold or release, elevator recall, emergency lighting control and other emergency functions. These additional functions supplement the basic system which consists of detection and alarm devices and central control unit.Technology has an influence on system architecture. When technology changes, the architecture has to be revised to take advantage of these changes. In recent years, VLSI technology has been advancing at an exponential rate. First NMOS and, in the last year or two, CMOS chips have been produced with the same packing density with more gates per chip yet at a lower power consumption than NMOS. Surely this change in technology must affect our design of hardware at both the chip and the system level. At the chip level, single chips are now being produced which are equivalent to board levels of only the previous year or two. These chips have microprocessor, memory in RAM and ROM,IO Ports both serial and parallel, A/D timer, flags and other functions on chip. At the system level, the new chips make new architectures possible. The objective of this paper is to show how technology can influence system architecture in the field of fire control. The new high density single chip microcontrollers are incorporated in the design of a large scale system and yet we obtain a smaller system with a better performance. In terms of fire detection and alarm monitoring, this is reflected directly in the local station hardware, because of their remoteness and power supply requirements. A complete local station can be designed around a single CMOS chip with power consumption of a few m W depending on system operation. This approach reduces the cost and complexity of design, implementation and maintenance and provides easily expandable and portable design. This implementation was not possible with old technology. Most of firedetection/monitoring systems available are tailored towards a specific application and lack the use of recent advances in CMOS VLSI technology. In this study, we develop a fire detection/monitoring system which is general in concept, readily implementable in a multitude of applications for early detection of a fire before it becomes critical, for equipment and evacuation of personnel. Here, we propose a central control and distributed control/detection/monitoring with adequate communication, where use is made of single-chip microcontrollers in the local stations, thus improving controllability and observability of the monitoring process.2 Detection and alarm devicesA basic fire detection system consists of two parts, detection and annunciation. An automatic detection device, such as a heat,smoke or flame detector, ultraviolet or infrared detectors or flame flicker, is based on detectingthe byproduct of a combustion. Smoke detectors, of both ionization and optical types, are the most commonly used detector devices. When a typical detector of this type enters the alarm state its current consumption increasesfrom the pA to the mA range (say, from a mere 15pA in the dormant mode to 60 mA) in the active mode. Inmany detectors the detector output voltage is well defined under various operating conditions, such as thosegiven in Table 1. Themore sensitive the detector, themore susceptible it is to falsealarms. In order to control the detector precisely, either of the following methods is used: a coincidence technique can be built into the detector, or a filtering technique such that a logic circuit becomes active only if x alarms are detected within a time period T. The detection technique depends greatly on the location and plant being protected; smoke detectors are used for sleeping areas, infrared or ultraviolet radiation are used when flammable liquids are being handled, heat detectors are used for fire suppression or extinguishing systems. In general, life and property protection have different approaches.Alarm devices, apart from the usual audible or visible alarms, may incorporate solid state sound reproduction and emergency voice communication or printers that record time, date, location and other information required by the standard code of practice for fire protection for complex plants. Heaviside [4] has an excellent review of all types of detectors and extinguisher systems.2.1 Control philosophy and division of labourOur control philosophy is implemented hierarchically. Three levels of system hierarchy are implemented, with two levels of decision making. There is no communication between equipment on the same level. Interaction between levels occurs by upwards transfer of information regarding the status of the subsystems and downwards transfer of commands. This is shown in Fig. 1 where at level 1 is the central station microcomputer and is the ultimate decision maker (when not in manual mode). At level 2 are the local controllers, which reside in the local stations. At level 3 are the actual detectors and actuators. A manual mode of operation is provided at all levels.Information regarding the status of all detectors is transmitted on a per area basis to the local controllers. Their information is condensed and transmitted upward to the central microcomputer. Transfer of status is always unidirectional and upwards. Transfer of commands is always unidirectional and downwards, with expansion at the local control level. This approach preserves the strict rules of the hierarchy for exact monitoring detection and alarm systems associated with high risk plants.The classification of the two layers of controls is based upon layers of decision making, with respect to the facts that(a) When the decision time comes, the making and implementation of a decision cannot be postponed(b) The decisions have uncertainty(c) It will isolate local decisions (e.g. locally we might have an alarm although there may be a fault with the system)3 General hardwareI :Fig. 2 depicts our design in the simplest of forms. Thesystem uses an open party line approach with four conductor cables going in a loop shared by all the remote devices and the control panel. This approach is simple in concept and is economically feasible. However, one major disadvantage is the dependency on a single cable for power and signaling. In cases where reliability is of extremeimportance, two or even three cables taking differentroutes throughout the system may be connected in parallel. Fig. 3 gives the driver circuitry required to derive an expandable bus. This design takes advantage of recent advances in the single chip microcomputer technology to reduce the interface between the central station and the local stations.3. 1 Central control taskA central unit provides a centralized point to monitor and control the systemactivities. In the system to be described the central control unit serves a fivefold purpose.(i) It receives information from the local stations and operates the alarms and other output devices.(ii) It notifies the operator in case of system malfunction.(iii) It provides an overall system control manual and automatic.(iu) It provides a system test point of local stations and itself.(u) It provides a central point for observation, learning and adaptation.3.2 Local stationsThe local stations can take local decisions regarding recognition of a risk situation, and act independently on local affairs. In this technique we depend on ‘load-type coordination’, e.g. the lower level units recognize the existenceof other decision units on the same level; the central or the top level provides the lower units with a model of the relationship between its action and the response of the system.It is evident that a powerful machine is required at this stage so that all the required functions can be implemented. The availability of the new generation of microchips makes this architecture a feasible solution.A single chip microcomputer was chosen over discrete digital and analogue devices to interface to the field devices and to the central microcomputer. This is the main reason that previously this approach was not feasible.In selecting the microcomputer for the local stations, the criterion was the requirement for a chip which contains the most integration of the analogue and digital ports required for the interface and the utilization of CMOS technology owing to remoteness of the local stations. The choice was the Motorola 68HC11A4, for the following reasons:(a) It is CMOS technology; this reduces power consumption.(b) It has a UART on board; this facilitates serial communication.(e) It has an a/d converter on board; this eliminates an external A/D.(d) It has 4K of ROM, 256 bytes of RAM, 512 bytes of EERROM with 40 1/0 lines and a 16 bit timer; this satisfied all our memory and 1/0 requirements at the local station side.4 System implementationThe local station: Fig. 3 is the block diagram of the circuit used to utilize the MC68HCllA4 as a remote fire detecting circuit while Fig. 4 illustrates the samecircuit in an expanded form. It can be seen that the singlemicrocontroller can be used to monitor more than one detector, thus reducing system cost.The loop power supply, which is usually between 28 and 26 V, is further regulated by a 5 V 100 mA monolithic low power voltage regulator to supply power to the microcontroller. The onboard oscillator, coupled with an external crystal of 2.4576 MHz, supplies the microcontroller with its timing signal which is divided internally by four to yield a processor frequency of 614.4 kHz, which is an even multiple of the RS 232 [7] baud rate generator. In this Section the term ‘supe rvised input or output’ will be used to mean that the function in question is monitored for open- and short-circuit conditions in addition to its other normal functions. More information can be found in Reference 9.5 Main loop6 ConclusionThis paper describes the development of a large scale fire detection and alarm system using multi-single chip microcomputers. The architecture used is a two-level hierarchy of decision making. This architecture is made possible by the new CMOS microcontrollers which represent a high packing density at a low power consumption yet are powerful in data processing and thus in decision making. Each local station could make an autonomous decision if the higher level of hierarchy allows it to do so. It has been tried to keep the system design in general format so it can be adapted to varying situations. A prototype of the described system has been built and tested [10]. The control part of the central station is implemented with a development card based on MC 68000 microprocessor (MEX 68KECB, by Motorola), which has a built-in。

火灾自动报警系统中英文对照外文翻译文献

火灾自动报警系统中英文对照外文翻译文献中英文资料外文翻译文献Automatic fire alarm systemThe traditional electron safe alarm system mainly is through thesensor automatic detection, produces the alarm, sends out the alarmfrom the scene or reports to the police through the special electriccable near distance, thus causes people's vigilance. Through manyyears research and the development, the present alarm apparatus maysay is the class is multitudinous. As a result of the alarm apparatusrapid development and the social each domain anxious need, can theapplication domain be more and more many, specially is rapidlydevelops in the civil domain.In recent years, the infrared alarmapparatus already became reports to the police a domain hot spot,because it used was not the obviously infrared acquisition, thereforehad the hiding to be good, characteristic and so on security. Theinfrared sensor is different according to the mechanism may divideinto the light survey and the hot survey. The light acquisition sensor is uses the photon effect the infraredacquisition aid. This kind of sensor speed of response quick, thesensitivity high, the examination characteristic is good, but needs tocool, uses not conveniently. Moreover the component examinationsensitivity and the infrared wave length concern. The hot acquisitionsensor is uses hotly releases the electricity effect the infraredacquisition aid. After receives the goal the infrared radiationtemperature increment, the temperature elevates causes the sensorinterior certain physical quantities changes, through examinationphysical quantity change definite infrared emission. This kind ofsensor works under the room temperature condition,examinationsensitivity also very high, speed of response also very quick,moreover has nothing to do with with the infrared emission wavelength, may survey the power only to receive the background radiationthe limit, the application is very convenient. This article designs isthe passive form hotly releases the electricity infrared acquisitionaid. In the article mainly elaborated has hotly released theelectricity the principle, hotly releases content and so on manyalarm circuit which the electric detector the characteristic,the BISS0001 signal processor, 555 timers composed. Finallydesigned completes has hotly released the electricity infrareddetection alarm apparatus the hardware electric circuit.With the modern family use of fire, electricity consumption increases, the frequency of home fires is getting higher and higher. The family of fire, it is easy to fight does not occur promptly, the lack of fire-fighting equipment and the presence of panic-stricken people, to escape unfavorable factors, such as retardation, which eventually led to a significant loss of life and property. Explore the characteristics of the family of fire and fire prevention measures.For the prevention of domestic fires, reducing the fire losses have practical significance .In the modern urban family, because of lot of people do not understand common sense home security caused by fire, so that the happy family Goog leruined blink of an eye, and some lead to destruction, but the event of household fires, improper disposal, alarm delay is caused so that people should get to know more about the main causes of household fires, master to prevent the fire of knowledge and in case of fire to protect his or her own way, timely elimination ofThe United Kingdom each year more than 50000 families of serious fires, most of them fire casualties and significant loss of household assets, and some result in the neighbors, more heavy fire losses. Investigate the causes of fire in time, the vast majority of home fires happen parties said that the fire always feel that things are other people with their own far away, did not think this will happen even in the top of his head.Home fires are the main reason for negligent not to take timely preventive measures .In some of our large and medium-sized cities, almost every day family fires, fire prevention is so each family must always pay attention to. If your home based on the actual situation in advance to take simple fire prevention measures, a number of tragedies are entirely avoidable.Automatic fire alarm system is in order to inform the early detection of fire, and take effective measures to control and fight fires, and set in a building or other place of an automatic fire facilities, is that people with a powerful tool to fight the fire. Fire alarm system, fire detectors generally, regional centralized alarm alarm and composition; also be required under the project with various fire-fighting facilities and communication devices linked to form a central control system. From automatic alarm, automatic fire fighting, evacuation guidance, system process shows that, fire up a complete file management, fire control system.Fire detectors are fire detection devices, as in the stage of fire will produce smoke with high temperature flame cells. The smoke, heat and light into electrical signals through the detector alarm or automatic fire extinguishing system to start fighting the fire in time. Area where the floor of alarm detector can send the signal into sound and light alarm, and fire on the screen showing theroom number; while also monitoring the concentration of certain floors of alarm (if the monitor is located in the building fire Control Center) output signal or control automatic fire extinguishing system. Concentration of alarm signal is received by way of sound and light show, and the screen also shows the specific fire floor and room number, the plane stopped taking the first alarm clock to record the timing, use of themachine-specific phones, but also quickly to the fire alarm to give directions and. In addition, you can control the fire extinguishing system or signal transmission to the fire control room.Automatic fire alarm system is by the trigger devices, fire alarm, fire alarm devices and other auxiliary functions of the device with the composition of a button fire alarm system fire alarm system. It can fire early stages of burning smoke, heat and light radiation and other physical quantities, by temperature.Photographic and other smoke and fire detectors into electrical signals, transmitted to the fire alarm controller, and also shows the site of the fire, the fire record of the time. General fire alarm system and automatic sprinkler system, fire hydrant systems, smoke control systems, ventilation systems, air conditioning system, fire doors, fire shutter, smoke screen and other related equipment interaction, automatically or manually issue commands to start the corresponding device.(A) of the trigger devices in automatic fire alarm system, automatic or manual fire alarm signal devices generate called trigger conditions, including fire detectors and manual fire alarm button. Fire detector is able to fire parameters (smoke, temperature, flame radiation, gas concentration, etc.) response, and automatically generate a fire alarm signal devices. Fireresponse parameters according to different fire detectors into heat detectors, smoke detector, sensitive fire detectors, combustible gas detectors and fire detectors five basic types of composite. Different types of fire detectors for different types of fires and different places. Manual fire alarm button fire alarm signal generated manually start the automatic fire alarm system devices, automatic fire alarm system is an indispensable component of the.(B) the fire alarm device in automatic fire alarm system to receive, display and transmit fire alarm signals, and can send control signals and control functions with other auxiliary equipment as the fire alarm device instructions. Fire alarm control is one of the most basic kind. Charged with the fire alarm control fire detectors provide a stable working power; detector and the working status of the system itself; the reception, conversion, processing a warning of fire detectors Shuchu; Jinxing sound and light alarm; Zhishi specific location and alarm time; the same time supporting the implementation of appropriate control and many other tasks. Fire alarm system is a core component. In the fire alarm devices, some devices such as break, regional monitors, fire shows and other functions can not complete disc alarm device, which can be regarded as the evolution of fire alarm controller or supplement. Under certain conditions applied, and the fire alarm device fire alarm control belong.The basic function of fire alarm control are: the main power, backup power automatically converted, standby power charge function, power failure monitoring function, power functions working status indicator, power supply for the detector circuit function, control sensors or system failures, sound and light alarm, fire sound, light alarm, fire alarm and memoryfunction, clock function unit, with priority being given fault function fire alarm, sound alarm sound audible alarm mute and again.(C) fire alarms in automatic fire alarm system to send different from the environment, sound, light the fire alarm signal device called the fire alarms. It sound, light and sound approach to the issue of fire alarm signals alarm area to warn people to adopt safe evacuation, fire fighting and rescue measures.D) Fire control equipment in automatic fire alarm system, when receiving the fire alarm, automatically or manually start the related fire-fighting equipment and display devices of their state, known as the fire control equipment. Include fire alarm control, automatic fire extinguishing system control device, fire hydrant system control devices, smoke exhaust system and air conditioning and ventilation system control device, normally open fire doors, fire shutter control device, the lift back down control equipment, and fire emergency radio, fire alarms, fire communications equipment, fire evacuation signs and emergency lighting control devices, control devices in some or all. Fire control equipment normally installed in the fire control center to facilitate the implementation of centralized control.While others set fire control equipment, fire fighting equipment is located in the charged field, but its actions must be returned fire control signal, combined with the implementation of centralization and decentralization of control.(E) fire alarm system power supply electrical equipment belonging to the fire, the main power should be in the fire power, standby power use of battery. In addition to fire alarm system power controller, power supply, but also related to the system for the fire control equipment such as power supply.火灾自动报警系统传统电子安全报警系统主要是通过传感器自动检测，产生报警信号，从现场发出报警信号或通过专门电缆近距离报警，从而引起人们的警觉。

【系统】防火报警系统毕业论文文献翻译中英文对照

【关键字】系统Fire alarm systemFire control work shall follow the policy of devoting major efforts into prevention and combining fire prevention with fire fighting, and shall adhere to the principle of combining the efforts of both specialized organizations and the masses and carry out responsibility system on fire prevention and safety. The State Council shall led and the people's governments at all levels be responsible for fire control work. The people's government at all levels shall bring fire control work in line with the national economy and social development plan, and ensure that fire control work fit in with the economic construction and social development. The public security department of the State Council shall monitor and administer the nationwide fire control work; the public security organs of local people's governments above county level shall monitor and administer the fire control work within their administrative region and the fire control institutions of public security organs of the people's government at the same level shall be responsible for the implementation.Along with the our country economic development rapid development, the lives of the people level unceasing enhancement, the city uses to be day by day anxious, urges the building to face the direction is developing. This kind of high level civil construction repair needed materials and the way also more hasten the diversification, and along with uses electricity the load and coal gas consumption quantity enlarging, proposed to the fire auto-alarm system design is higher, a stricter request. In order to guarantee the people life and property the security, the fire auto-alarm system design has become in the high level civil construction design one of most important design contents. Presently based on the author fire of auto-alarm system design overseeing work in the high level civil building experience, proposed in present national related standard and standard unclear true detail shallow opinion, by for the colleagues to discuss and to point out mistakes.Automatic fire alarm system is by the trigger devices, fire alarm, fire alarm devices and other auxiliary functions of the device with the composition of the fire alarm system, automatic fire alarm system, automatic or manual fire alarm signal devices generate called trigger parts include fire detectors and manual fire alarm button.Fire detectorFire detectors are sensing automatic fire alarm system parts, is composed of a variety of automatic fire alarm system, key components, automatic fire alarm system is a "sense organ." It on the fire parameters (smoke, temperature, flame radiation, gas concentration, etc.) response, and automatically generate a fire alarm signal, or to the control and indicating equipment status signals sent on-site fire equipment. Fire detector is a key component in the system, his stability, reliability and sensitivity specifications are subject to many factors, so the selection and arrangement of fire detectors should be carried out strictly in accordance with specifications.Classification of fire detectorsCurrently many different types of fire detectors, there are different ways according to different classifications. 1 According to the monitoring of different fire characteristics, fire detectors can be divided into smoke, temperature, light-sensitive, complex and combustible gases such as five types, each type has its work according to different principles are divided into several.Automatic reset fire detectors. Can automatically return to monitoring status.Remote reset fire detectors. Through the remote control back to the surveillance state.Manual reset fire detectors. By manually adjusting back to the surveillance state. can not reset the fire detectors. Fire alarm signal in the production of the conditions no longer exist, the group can be swapped back to the monitor from the alarm state after state, or action can not be restored to the surveillance state.The choice of fire detectorThe choice of fire detector shall meet the following requirements:(1)Early stages of the fire smoldering phase, generate a lot of smoke and a small amount of heat, little or no flame radiation, smoke probe selection;(2) The fire developed rapidly, resulting in a lot of heat, smoke and flame radiation, smoke used probe, temperature probe, the flame sensor or a combination;(3) The fire developed rapidly, with a strong flame radiation and a small amount of smoke, heat, and use flame probe;(4)Complicated or unexpected formation characteristics of fire can be simulated to fit the experimental probe used.Fire alarm controlFire alarm control is the heart of automatic fire alarm system has the following functions:(1) To accept the fire signal and start the fire alarms. The device can also be used to indicate firelocation and recording the information.(2) Start a fire through a fire alarm signal transmitting device, or through the automatic control unit activates the automatic fire extinguishing equipment and fire fighting linkage controller.(3) Automatically monitoring system for correct operation and failure to say anything specific, light alarm.Fire alarm control classificationWide variety of fire alarm controller, according to different methods can be divided into different categories.The control can be divided into:Regional fire alarm control: direct connection of fire detectors, handling all kinds of alarm information.Concentrated fire alarm control: it is generally not connected with the fire detector, which is connected with the regional fire alarm controller, fire alarm control of district-level alarm signal sent, often used in larger systems.Control Center fire alarm control: it is both regional, centralized two or fire alarm feature of the controller, which can be used for the regional level, the connection controller; they can be used for concentration levels used to connect regional fire alarm controller.By structure type can be divided into:Wall of fire alarm control: connect the detector circuit corresponding less, control is simple, many regional police only use this type of controller.Desktop fire alarm control: a few more connections detector circuit, linkage control more complex, centralized alarm often used this way.Box type fire alarm control: multi-loop connection can be realized with sophisticated control linkage.The system wiring is divided into:Multi-wire fire alarm control: detector and controller correspond to the connection method used.B system, fire alarm control: the controller and the detector connected by bus, detectors parallel or series on the bus.Fire alarm control functionsFire alarm: When you receive the detector, manual alarm switch, fire hydrant switch and input module is connected with the equipment issued to the fire signal, the alarm may be in alarm.Failure Alarm: The system time-sharing running control inspection, if an exception (equipment failure) the issue of sound, light alarm signal and displays the fault type and encoding.Fire priority: the failure to deal with fire alarm or, if the fire was reported the fire, and when the fire reportedly cleared automatically after the original failure.The time clock and the memory of the fire: when the system clock to go through the software programming, with a corresponding memory cell, memory, time of the accident.Self-test function: In order to improve the reliability of alarm systems, the controller sets the checking can be regular or irregular inspections of fire-First, design basisThe fire auto-alarm system design is a specialized very strong technology work, at the same time also has the very strong policy-type. Therefore, first should be clear about the following design basis: 1st, must grasp the architectural design fire protection standard, the system design standard, the equipment manufacture standard, the installment construction approval standard and the administration laws and regulations and so on five big aspects fire laws and regulations, and in practical understanding present country related standard and standard positive word: "Must", "be supposed", "to be suitable", "may" and the reverse side word: "Strictly prohibits", "should not", "not have", "not to be suitable" the meaning.2nd, must aim at high level civil building function, use and the protection object fire protection rank, earnestly carries out the present national related standard, earnestly treats the public security fire prevention surveillance department the examination and approval opinion.Second, fire auto-alarm system equipment establishmentFire detector establishmentOpens wide either the seal or the stair hall should alone divide the search coverage.Room (including guards against in front of smoke stair hall in front of room, fire elevator room, fire elevator with guards against the front room which smoke stair hall comes in handy) and the aisle should distinguish alone to divide the search coverage, specially front the room and the lift well, the scattered stair hall and the aisle are interlinked, has time the fire haze to be easier to gather or to flow, is the personnel disperses which saves goal with the fire prevention, therefore should install the fire detector. Regarding common elevator in front of room although is not the personnel disperses , but this front room and the lift well are interlinked, has time the fire haze to be also easy to gather or to flow, suitably alone divides thesearch coverage and installs the fire detector.The electric cable shaft therefore is easy to form pulls out the smoke inflammation the channel; Has when the fire the fire intensity not easily extends along the electric cable burns, for this, "the high level civil construction design fire protection standard" and "the civil construction electricity design standard" separately proposes the detailed specific stipulation in the construction and in the electric wire or on the electric cable shaping. But considered implements specifically the difficulty and the present situation, the electric cable shaft installs the fire detector is extremely essential, and coordinates the shaft the fire protection separation request, each 2 ~ 3 or each level installs.The elevator machine room should install the fire detector, its elevator is the important vertical transportation vehicle. when has the fire, the lift well often becomes the fire intensity spread the channel, is easy to threaten the elevator machine room the facility. Therefore, the elevator machine room establishes the fire detector is necessary, crown of also suitable establishment fire detector lift well.2nd, the manual fire reports to the police the button establishmentRoom (Including guards against in front of smoke stair hall in view of various floors front room in front of room, fire elevator room, fire elevator with guards against which smoke stair hall to come in handy the front room) is has when the fire the personnel to disperse which saves goal with fire prevention, should report to the police the button first choice spot as the establishment manual fire. In addition, the room also should establish the manual fire to the common elevator in front of to report to the police the button.In the public active place (including hall, dining room, multi-purpose hall and so on) and the main thoroughfare and so on place, the personnel very is all centralized, and mainly disperses the channel. Therefore should report to the police the button in these public active places main access establishment manual fires; The manual fire establishes which in the main thoroughfare reports to the police the button to guarantee "to a manual fire which most is close to reports to the police the button distance from a fire protection district any position not to be supposed to be bigger than 30 meters".3rd, the fire emergency broadcasts the speaker the establishmentThe aisle, the hall, the dining room and so on the public place personnel very are all centralized, and mainly disperses the channel. Therefore should press in these public places "to a recent speaker distance is not bigger than 25 meters from a fire protection district any spot" and "in the aisle last should not be bigger than 12.5 meters the speaker to the aisle terminal distance" the establishment fire emergency to broadcast the speaker; Next also should establish the fire in the public bathroom place emergency to broadcast the speaker.Room (including guards against in front of smoke stair hall in front of room, fire elevator room, fire elevator with guards against which smoke stair hall to come in handy the front room) is has when the fire the personnel to disperse which saves goal with fire prevention, also has the fire door separation and the sounds of people is confused and noisy, therefore should establish the fire emergency to broadcast the speaker. In front of the common elevator the room also should establish the fire emergency to broadcast the speaker. Disperses the stair hall also is has when the fire the personnel to disperse which saves goal with the fire prevention, also the sounds of people are confused and noisy, therefore should establish the fire emergency to broadcast the speaker, by favors the fire emergency broadcast to disperse the instruction.4th, fire alarm installment establishmentThe establishment fire emergency broadcast fire auto-alarm system, the author thought also should install the fire alarm installment, but its control procedure should be: The alarm apparatus should confirm after the fire, uses manual or the automatic control mode unification to the fire correlation region transmission warning, stops the alarm apparatus work in the stipulation time, the rapid linkage fire emergency broadcast and broadcasts to the people disperses the instruction.The fire alarm establishment position, the author thought should report to the police the button position w installment ith the manual fire to be same, its wall surface installment should for be apart from the ground 1.8 meters highly5th, fire special use telephone establishmentInstalls the fire special use telephone extension telephone, should be located the engine room which related also some people is on duty frequently with the fire linkage control (including fire water plant, spare electricity generation engine room, matches substation, mainly ventilates with air conditioning engine room, discharges fume engine room, fireprevention elevator machine room and other), the fire fighting control system operates the equipment place or the control room, the fire duty officers observation room, the security manages spot and so on public room.In the fire elevator and the ordinary elevator all should suppose the special use telephone, requests the elevatorm achine room and the elevator sedan theater box, the elevator machine room and the fire control room, the elevator sedan theater box and the fire control room and so on three compositions is reliable to speaks the correspondence telephone system. Usually in fire control room; The establishment elevator monitoring demonstration plate (including position indicator, direction indicating lamp, to speaks correspondence telephone, trouble lamp and so on), in order to carries on the necessity to the elevator running status which in the surveillance and the emergency case controls.Is equipped with the manual fire to report to the police position and so on button, fire hydrant button also should install the fire special use telephone receptacle.Third, fire linkage control1st, the fire linkage control should include the control fire pump to open, to stop, also should demonstrate opens pumps the button the position and the fire pump work and the malfunction. When the fire hydrant is equipped with the fire hydrant button, its electric installation work spot also should demonstrate the fire pump the working mode active status (namely establishment fire pump work indicating lamp).2nd, the fire linkage control should include the control spraying of water and the water atomization fire fighting system opens, stops, also should demonstrate the fire pump the work and the malfunction and the fluent display, reports to the police the valve, the safety signal valve working mode active status. In addition, to the basin, the water tank water level also should carry on the demonstration monitor; In order to prevent the overhaul signal valve is shut down, the author thought should use the belt electric signal the control signal valve by to demonstrate it opens the condition.3rd, the fire linkage control other controls and the demonstration function, should carry out the present national related standard and the standard specific stipulation.Fourth, fire auto-alarm system wiringIn order to prevent the fire occurs when the fire control, the correspondence and the warning line severance, causes the fire fighting work to be unable to carry on, creates the bigger economic loss; Also for the suppression electronmagetic interference (for example transformer, electric motor, electric cable and so on) the influence which produces to the fire auto-alarm system. The fire auto-alarm system transmission line and the fire control, the correspondence and the warning line should use the being flame-resistant electric cable, and should use the metal tube or the enclosed metal trunking protection. The fire manual positive governing installment line should use the fireproof electric cable, its electric cable also should use the metal tube or the enclosed metal trunking protection. Uses Ming Fushi, should takes the fire protection protective measures on the metal tube or the enclosed metal trunking.Fifth, concluding remarkThe author rests on the concrete project to implement the experience, elaborated the design basis, fire auto-alarm design actual problem and so on system equipment establishment, fire linkage control and its wiring pulls out some shallow opinions, its goal is enhances the fire auto-alarm system the design quality, discovered early and the notification fire, prevented and reduces the fire to harm, by protects the person and the property safety.防火报警系统消防工作贯彻预防为主、消防结合的方针，坚持专门机关与群众相结合的原则，实行防火安全责任制。

可燃气体报警器中英文对照外文翻译文献

火灾报警外文文献翻译

本科毕业生外文文献翻译学生姓名:**指导教师:孟洁所在学院:信息技术学院专业:电气工程及其自动化中国·大庆2012年5 月Automatic fire alarm systemThe traditional electron safe alarm system mainly is through the sensor automatic detection, produces the alarm, sends out the alarm from the scene or reports to the police through the special electric cable near distance, thus causes people's vigilance. Through many years research and the development, the present alarm apparatus may say is the class is multitudinous. As a result of the alarm apparatus rapid development and the social each domain anxious need, can the application domain be more and more many, specially is rapidly develops in the civil domain.In recent years, the infrared alarm apparatus already becamereports to the police a domain hot spot, because it used was not the obviously infrared acquisition, there for had the hiding to be good,characteristic and so on security. Theinfrared sensor is different according to the mechanism may divide into the light survey and the hot survey. The light acquisition sensor is uses the photon effect the infrared acquisition aid. This kind of sensor speed of response quick, the sensitivity high, the examination characteristic is good, but needs to cool, uses not conveniently. Moreover the component examination sensitivity and the infrared wave length concern. The hot acquisition sensor is uses hotly releases the electricity effect the infrared acquisition aid. After receives the goal the infrared radiation temperature increment, the temperature elevates causes the sensorinterior certain physical quantities changes, through examination physical quantity change definite infrared emission. This kind of sensor works under the room temperature condition, examination sensitivity also very high, speed of response also very quick, moreover has nothing to do with the infrared emission wavelength, may survey the power only to receive the background radiation the limit, the application is very convenient. This article designs is the passive form hotly releases the electricity infrared acquisition aid. In the article mainly elaborated has hotly released the electricity the principle, hotly releases content and so on many alarm circuit which the electric detector the characteristic, the BISS0001 signal processor, 555 timers composed. Finally designed completes has hotly released the electricity infrared detection alarm apparatus the hardware electric circuit.With the modern family use of fire, electricity consumption increases, the frequency of home fires is getting higher and higher. The family of fire, it is easy to fight does not occur promptly, the lack of fire-fighting equipment and the presence of panic-stricken people, to escape unfavorable factors, such as retardation, which eventually led toa significant loss of life and property. Explore the characteristics of the family of fire and fire prevention measures.For the prevention of domestic fires, reducing the fire losses have practical significance .In the modern urban family, because of lot of people do not understand common sense home security caused by fire, so that the happy family Goog ruined blink of an eye, and some lead to destruction, but the event of household fires, improper disposal, alarm delay is caused so thatpeople should get to know more about the main causes of household fires, master to prevent the fire of knowledge and in case of fire to protect his or her own way, timely elimination of The United Kingdom each year more than 50000 families of serious fires, most of them fire casualties and significant loss of household assets, and some result in the neighbors, more heavy fire losses. Investigate the causes of fire in time, the vast majority of home fires happen parties said that the fire always feel that things are other people with their own far away, did not think this will happen even in the top of his head.Home fires are the main reason for negligent not to take timely preventive measures .In some of our large and medium-sized cities, almost every day family fires, fire prevention is so each family must always pay attention to. If your home based on the actual situation in advance to take simple fire prevention measures, a number of tragedies are entirely avoidable.Automatic fire alarm system is in order to inform the early detection of fire, and take effective measures to control and fight fires, and set in a building or other place of an automatic fire facilities, is that people with a powerful tool to fight the fire. Fire alarm system, fire detectors generally, regional centralized alarm alarm and composition; also be required under the project with various fire-fighting facilities and communication devices linked to form a central control system. From automatic alarm, automatic fire fighting, evacuation guidance, system process shows that, fire up a complete file management, fire control system.Fire detectors are fire detection devices, as in the stage of fire will produce smoke with high temperature flame cells. The smoke, heat and light into electrical signals through the detector alarm or automatic fire extinguishing system to start fighting the fire in time. Area where the floor of alarm detector can send the signal into sound and light alarm, and fire on the screen showing the room number; while also monitoring the concentration of certain floors of alarm (if the monitor is located in the building fire Control Center) output signal or control automatic fire extinguishing system. Concentration of alarm signal is received by way of sound and light show, and the screen also shows the specific fire floor and room number, the plane stopped taking the first alarm clock to record the timing, use of the machine-specific phones, but also quickly to the fire alarm to give directions and. In addition, you can control the fire extinguishing system or signal transmission to the fire control room.Automatic fire alarm system is by the trigger devices, fire alarm, fire alarm devices and other auxiliary functions of the device with thecomposition of a button fire alarm system fire alarm system. It can fire early stages of burning smoke, heat and light radiation and other physical quantities, by temperature. Photographic and other smoke and fire detectors into electrical signals, transmitted to the fire alarm controller, and also shows the site of the fire, the fire record of the time. General fire alarm system and automatic sprinkler system, fire hydrant systems, smoke control systems, ventilation systems, air conditioning system, fire doors, fire shutter, smoke screen and other related equipment interaction, automatically or manually issue commands to start thecorresponding device.(A) The trigger deviceof the trigger devices in automatic fire alarm system, automatic or manual fire alarm signal devices generate called trigger conditions, including fire detectors and manual fire alarm button. Fire detector is able to fire parameters (smoke, temperature, flame radiation, gas concentration, etc.) response, and automatically generate a fire alarm signal devices. Fire response parameters according to different fire detectors into heat detectors, smoke detector, sensitive fire detectors, combustible gas detectors and fire detectors five basic types of composite. Different types of fire detectors for different types offires and different places. Manual fire alarm button fire alarm signal generated manually start the automatic fire alarm system devices, automatic fire alarm system is an indispensable component of the.(B) fire alarm installationthe fire alarm device in automatic fire alarm system to receive, display and transmit fire alarm signals, and can send control signals and control functions with other auxiliary equipment as the fire alarm device instructions. Fire alarm control is one of the most basic kind. Charged with the fire alarm control fire detectors provide a stable working power; detector and the working status of the system itself; the reception, conversion, processing a warning of fire detectors;export; Jinxing sound and light alarm; Knowledge specific location and alarm time; the same time supporting the implementation of appropriate control and many other tasks. Fire alarm system is a core component. In the fire alarm devices, some devices such as break, regional monitors, fire shows and other functions can not complete disc alarm device, which can be regarded as the evolution of fire alarm controller or supplement. Under certain conditions applied, and the fire alarm device fire alarm control belong.The basic function of fire alarm control are: the main power, backup power automatically converted, standby power charge function, power failure monitoring function, power functions working status indicator, power supply for the detector circuit function, control sensors or system failures, sound and light alarm, fire sound, light alarm, fire alarm and memory function, clock function unit, withpriority being given fault function fire alarm, sound alarm sound audible alarm mute and again.(C) Fire control equipmentFire control equipment in automatic fire alarm system, when receiving the fire alarm,automatically or manually start the related fire-fighting equipment and display devices of their state, known as the fire control equipment. Include fire alarm control, automatic fire extinguishing system control device, fire hydrant system control devices, smoke exhaust system andair conditioning and ventilation system control device, normally open fire doors, fire shutter control device, the lift back down control equipment, and fire emergency radio, fire alarms, fire communications equipment, fire evacuation signs and emergency lighting control devices, control devices in some or all. Fire control equipment normallyinstalled in the fire control center to facilitate the implementation of centralized control. While others set fire control equipment, fire fighting equipment is located in the charged field, but its actions must be returned fire control signal, combined with the implementation of centralization and decentralization of control.(D) electrical sourcefire alarm system power supply electrical equipment belonging to the fire, the main power should be in the fire power, standby power use of battery. In addition to fire alarm system power controller, power supply, but also related to the system for the fire control equipment such as power supply.火灾自动报警系统传统电子安全报警系统主要是通过传感器自动检测,产生报警信号,从现场发出报警信号或通过专门电缆近距离报警,从而引起人们的警觉。

外文翻译--报警消防

Understanding Basic Fire Alarm SystemsDec1,200612:00PM,By David Herres,Master ElectricianIncreased revenue opportunities await contractors willing to put in the time and effort necessary to acquire fire alarm expertise。

Even if you're not ready to take the plunge into fire alarm system design and installation just yet, you should still know the fundamentals in order to perform emergency work.This includes knowing how to disarm the control panel of a deranged system and troubleshoot the heads,pull stations,horns,and zone wiring so that the equipment goes back online,restoring fire protection for the building.Because these ailments can be frequent with older and newly commissioned systems alike,it's important for electrical contractors to understand the basics of fire alarm systems.A medium-sized control panel with touchpad for alarm and trouble silence and system reset is shown above.Referring to the installation manual,you can use the touchpad to program the system’s many options.The modern fire alarm system is capable of detecting smoke and heat from a small flame,water flow in a sprinkler system or an activated pull station,and reporting this information to on-site personnel via dedicated phone line to any location in the world.Although a seemingly straightforward device from an installation standpoint,fire alarm work can be quite complex, especially when you consider the enormous moral and legal responsibilities involved.There have also been some recent updates to the technology over the last few years worth noting.Recent advances.The latest major development in the fire alarm system arena has been the introduction of the addressable head.Before these updates,in the event of an alarm,the alphanumeric display at the control panel indicated which zone was affected—something like “Fire Alarm—Zone6,East Wing Third Floor.”With an addressable head system;however,the exact location is pinpointed.Moreover,the addressable head system has enhanced diagnostic capabilities.This is a great advantage because when a system goes down,time is of the essence in restoring fire protection to the building.To upgrade to addressable heads,it's not usually necessary to do a complete system replacement. Typically,installers must put in new heads,pull some extra wire,and insert new printed circuit cards into the existing control panel.Each new head possesses an address,which conveys its exact location.You may be asking yourself if this means a spare head has to be kept in inventory for each location.No,each initiating device has on its back a set of DIP switches by means of which you enter a binary number that comprises the address prior to installation.If replacement is necessary,use a small screwdriver to set the DIP switches on the new device.The option to upgrade with addressable heads or to completely replace a legacy system has to be carefully considered by building owners with the input of in-house electricians and outside consultants. For a large set of buildings,the expense to upgrade can be formidable.For example,besides addressable and non-addressable heads,there are high-and low-impedance initiating devices,2-and4-wire circuitry,and various operating protocols.These are reflected in the different states a control panel can be in as reported by the alphanumeric display.A system may also be power limited,or,less commonly,non-power limited.In addition to familiarizing yourself with the most recent technology trends as outlined above,it's also important for electrical contractors to realize how sensitive these devices are to certain design, installation,and operational issues—all of which can result in lost revenue,unplanned downtime,and unhappy customers.Here's a good example.Say an expensive commercial building is all but finished; however,the fire alarm doesn't pass inspection,meaning the facility cannot legally be used.As a few rattled electricians work feverishly to get the bugs out of the system,the owners lose thousands of dollars every day.Another potentially problematic scenario might involve slightly creased conductors coming out of a conduit connector at the detector head base.Although this situation would pose no problem in ordinary power or telephone circuits,it could throw one of these systems into false alarm.Realizing that these types of unforeseen circumstances can throw a wrench into even the best conceived plans,it makes sense for contractors to review fundamental design,installation,and operational considerations for fire alarm systems to keep their skills sharp.Design considerations.Typically,a fire alarm system is made up of the following components:•Initiating devices,capable of placing the system in the alarm state.These can be photoelectric smoke and heat detectors,ionization smoke detectors,heat detectors,in-duct smoke detectors, manually operated pull stations and sprinkler waterflow sensors.•Indicating appliances,whose purpose is to announce builidng occupants or at a remote location when the system enters the alarm state,such as horns,strobe lights,chimes,bells,or combination units.They are also available in weatherproof and hazardous location versions.•A control panel,containing programming and operating electronics and user interface,is fed by standard branch-circuit wiring and contains replaceable circuit cards—one for each zone.This includes an alphanumeric display,showing the state of the system and providing troubleshooting information,and a touchpad so that onsite personnel can silence an alarm or trouble signal,reset the system following an event,and reprogram if necessary(Photo on page C10).•Sealed batteries similar to emergency light batteries,but listed for fire alarm systems.These are usually6V batteries wired in series to make up24VDC for a power-limited system.The batteries can be contained in the control panel or in a separate enclosure.When AC power fails,thebatteries take over with no interruption in fire protection.Of course,there is also a charger.•Auxiliary devices,including remote annunciators with LEDs showing the state of the system,an alarm silence switch,and visual LED indication of the zone from which a fire alarm is initiated.Electromagnetic door holders(floor-or wall-mounted)are available.In case of alarm,the magnet is de-energized,allowing the door to swing ter,it is reopened manually.Initiating devices are connected to the control panel by a2-or4-wire initiating device circuit.In the case of a power-limited system,24VDC is applied to two wires going to a string of initiating devices,which are wired in parallel.Neither wire is grounded,and they are isolated from EMT or other raceways,which are grounded through the connector at the control panel.Polarity is also critical.This voltage is used to power the solid-state circuitry within each detector.It's also used by the control panel to monitor the state (alarm or no alarm)of the initiating devices and zone wiring.A typical fire alarm system has numerous initiating devices divided among separate zones—each connected via an initiating device circuit to a central control panel.The control panel performs supervisory functions over the initiating devices,indicating appliances,all associated field wiring, telephone ties,and its own internal wiring and circuit cards.Installation tips.During initial setup,all zone wiring,initiating device,and indicating appliance installation should be completed before the telephone tie is hooked up,typically by means of a ribbon connector.This is so that the monitoring agency won't receive false alarms.The control panel should be located where it can be responded to as necessary either around the clock or during operating hours.This can be at building security headquarters,adjacent to a telephone switchboard or in a maintenance office—whichever location offers maximum coverage.It should also be positioned in a fairly central location because if the system goes into alarm,a person needs to be able to race to the location and verify fire status before the alarm is silenced.Operational issues.A fire alarm system operates in one of three(or more)states:normal,alarm,and trouble.The state is reported at all times on the alphanumeric display.If the system goes into alarm,the indicating appliances throughout the building go off.These could be very loud horns for some occupancies,or softer chimes in others,such as a nursing home.The control panel monitors the initiating device circuits at all times for shorts and open wiring by means of the applied DC voltage.The initiating devices are normally open.In the event of a fire they become conductive at close to zero ohms.How,then,is it possible for the control panel to differentiate between a non-alarm state and an open wiring fault?This is accomplished by means of an end-of-line resistor.A4.7kilohm(typically)resistor is placed across the line after the final device.When this resistance is seen by the control panel,normal status is maintained.If the resistance increases,it means that an open has developed,and the panel goes into the trouble state.A buzzer sounds to alert maintenance personnel but the much louder horns throughout the building do not go off.The alphanumeric display will read something like“Open Circuit in Zone Three.”The trouble alert can be silenced by pressing a touchpad location under the trouble alert LED.The control panel also monitors the functionality of its own wiring and zone cards,and trouble is reported in the display.A low-level voltage is applied to the indicating appliance circuits when the system is normal.This voltage is not sufficient to set off the horns,but it is monitored as part of the control panel's supervisory function. If current ceases to flow,the trouble alert buzzer sounds,and the display indicates the presence of an open circuit.Several troubleshooting techniques are appropriate when the system enters the trouble state.Initially, you can unhook a zone in the control panel(after disabling the system)and place an end-of-line resistoracross the output terminals.This will simulate a zone in place and the actual field wiring(including devices)can be worked on while the rest of the system is operational.Another approach is to break the zone at the middle of the run and insert an end-of-line ing the“half-splitting”troubleshooting method,as discussed in“Maintenance Facts”on page16of the November issue,you can easily pinpoint a fault—either short or open.Another capability of the fire alarm system is to call out in case of alarm.Two dedicated phone lines are connected,and the system performs test calls periodically in accordance with programmed instructions. If either phone line won't connect,the system goes into the trouble state,so repairs can be made.The essence of a fire alarm system,as opposed to individual smoke detectors,even if they are wired to indicate in concert,is that it is supervised from a central location.The whole notion of supervision is critical.It does not mean that a person sits at the console and watches it at all times.What it means is that a supervisory voltage is applied to all circuitry,and current flow is monitored electronically to verify that equipment and wiring are intact.If the system goes into alarm and won't silence due to touchpad malfunction,for example,it can be disarmed after the zone is checked for fire by cutting off the power.First,unhook one side of the battery array,then unhook the black-white-green incoming power connector.If a fire alarm system is disabled, maintenance and security personnel should initiate fire patrols throughout the building.The telephone monitoring agency should be informed,and the insurance company contacted to verify that coverage is not voided.Herres is a New Hampshire licensed master electrician in Stewartstown,N.H.。

对于城市火灾自动报警监控网络系统的探索中英文对照

对于城市火灾自动报警监控网络系统的探索中英文对照Exploration of the automatic alarm and monitoring network system of city fire control in English随着中国的改革开放，在这十几年中，全国大中型城市的高层建筑、公共场所、地下建筑、现代化厂区等得到了高速发展。

这些建筑根据消防规范都安装了独立的火灾报警系统。

这With China's reform and opening up, in the last ten years, the national large and medium-sized city high-rise buildings, underground buildings, public places, such as the modernization of the factory has got rapid development. These buildings according to the fire code are equipped with independent fire alarm system. This些系统在防火救灾中起到了关键的功能，为保护人民的生命和财产作出了贡献。

但在实际操作中，由于火警信息需经过保安值班人员的处理，人为的因素起到了关键的功能。

如近期Some system in a fire disaster plays a key function, make contribution to the protection of people's lives and property. But in actual operation, because the fire information required to pass through the security personnel on duty of the processing, the human factor plays the key function. Such as the recent上海地区闵行一仓库，由于个人的处理不当，延误了救火时间，酿成了大火，造成了重大经济损失。

外文翻译中文.pdf

论文低功耗无线烟雾中的家庭火灾报警系统Juan Aponte Luis 1, Juan Antonio Gómez Galán 2,* and Javier Alcina Espigado 1 1OnTech Security LLC, C/Hispano Aviación, 7-9, 41300 La Rinconada, Sevilla, Spain; E-Mails: juan.aponte@ontech.es (J.A.L.); javier.alcina@ontech.es(J.A.E.)2Department Electronic Engineering, Computer Systems, and Automatics, University of Huelva, Ctra Huelva, La Rábida, s/n, 21819 Huelva, Spain*Author to whom correspondence should be addressed; E-Mail: jgalan@diesia.uhu.es; Tel.: +34-95921-7650; Fax: +34-95921-7348.Academic Editor: Ingolf WillmsReceived: 28 April 2015 / Accepted: 17 August 2015 / Published: 21 August 2015摘要：国内环境中一种新的传感火灾探测装置。

火灾探测器由几个传感器组合而成，不仅可以检测烟雾，还可以区分不同类型的烟雾。

此功能避免假警报和不同情况的警告。

在硬件和软件方面进行了功耗优化，提供了近五年的高度自治。

从设备收集的数据通过无线通信传送到基站，为低成本和紧凑的设计提供了广阔的应用前景。

关键词：火灾探测器；烟雾传感器；无线传感器网络；低功耗1. 简介家庭防火检测是一个非常热门的问题，因此很多的心血都倾注在大多数发达国家的自动检测系统的设计。

消防系统弱电系统设计中英文对照外文翻译文献

中英文对照消防报警及控制系统设计说明【Design Despcrition of Fire-safety Alarming and Control System】一、设计依据：【Basis of Design】《火灾自动报警系统设计规范》GB50116-98【Code for Design of Automatic Fire Alarm System GB50116-98】《高层民用建筑设计防火规范》GB50045-95 （2005版）【Code for fire protection design of tall building GB50045-95 （2005 Version）】二、系统保护对象分级：【Classification of the target protected by the system】根据火灾自动报警系统设计规范第3.1.1条，系统保护对象为一级。

【according to Item 3.1.1, Code for Design of Automatic Fire Alarm System, the object protected is Grade I】三、自动报警系统形式：【Form of automatic alarming】采用集中报警系统。

【centralized alarming system is adopted】四、备用照明的设置范围：【Scope of installation of backup lighting】在消防控制室、疏散楼梯、走道、电梯厅、门厅、排烟机房、变配电室、电梯机房、消防泵房等场所设置备用照明。

【Backup lighting shall be installed in fire-safety control room, evacuation stairs, elevator hall, smoke evacuation plant room, transformer and switch room, and stair plant room and fire-safety pump room.】五、疏散照明的设置范围：【Scope of installation of evacuation lighting】在疏散楼梯间出入口、疏散走道、安全出口处、走道、门厅等场所设置疏散【Evacuation lighting shall 照明，疏散照明自带蓄电池连续供电时间不小于40分钟。

火灾通知英文作文范文

火灾通知英文作文范文英文：Fire is a serious threat to our safety and property. In case of a fire emergency, it is important to notify everyone in the area as soon as possible. There are several ways to do this.Firstly, you can call the fire department by dialing 911 and reporting the fire. This is the most effective way to get help quickly. Remember to provide the exact location of the fire, the type of building, and any other important details.Secondly, you can use a fire alarm to alert people in the building. Fire alarms are designed to detect smoke or flames and emit a loud noise to warn people to evacuate the building. It is important to test your fire alarm regularly to ensure it is working properly.Thirdly, you can use social media or text messaging to notify people in the area. This is especially useful if the fire is in a remote location or if you are unable to make a phone call.In any case, it is important to remain calm and follow the instructions of the fire department. Do not attempt to put out the fire yourself unless you are trained to do so.中文：火灾是对我们的安全和财产的严重威胁。

火灾自动报警系统毕业论文中英文资料外文翻译文献

火灾自动报警系统毕业论文中英文资料外文翻译文献nal electronic fire alarm system relies on sensors to automatically detect a fire and trigger an alarm。

which can alert people on the scene or notify the authorities through a special electric cable。

Over the years。

the development of alarm devices has led to a wide range of ns for different ns。

particularly in the civil domain.One popular type of alarm system is the infrared alarm。

which has gained n due to its ability to detect fires without us infrared signals。

making it more secure。

Infrared sensors can be classified into two types: light survey and hot survey。

based on their n mechanisms.To improve the effectiveness of fire alarm systems。

many modern devices also incorporate advanced technologies such as wireless n。

remote monitoring。

and intelligent analysis。

These features enable faster response times and more accurate n。

消防报警和安全检测外文文献翻译

Fire Alarms and Security DetectionA fire alarm circuit, as its name implies, sounds an alarm in the event of a fire. There can be one or several alarms throughout a building, and there can be several alarm points, which activate the warming. The alarm points can be operated manually or automatically; in the latter case they may be sensitive to heat, smoke or ionization. There are clearly many combinations possible, and this chapter gives some systematic account of the way they are built up.Several alarm points are connected in parallel, and whenever one of them is actuated the circuit is completed and the alarm sounds. This is described as an open circuit, and it will be seen that it is not fail safe, because if there is a failure of supply, the fire alarm cannot work. Another characteristic of this circuit is that every alarm point must be capable of carrying the full current taken by all the bells or hooters working together.The alarm points are connected in series with each other and with a relay coil. The relay is normally closed when de-energized, and opens when the coil is energized. Thus when an alarm point is activated the relay coil is de- energized, the relay closes and the alarm sounds. This system fails safe to the extent that if the coil circuit fails the main circuit operates the alarm. It is not of course safe against total failure of the supply because in that event there is no supply available to work the bells. The alarm points do not have to carry the operating current of the bells or hooters. This arrangement is called a closed circuit in contrast to the open circuit. We can notice that in an open circuit the alarm points are wired in parallel and are normally open, whilst in a closed circuit they wired in series and are normally closed.A typical manually operated fire alarm point is contained in a robust red plastic case with a glass cover. The material is chosen for its fire resisting properties. The case has knock out for conduit entries at top and bottom but the material can be sufficiently easily cut for the site electrician to make himselfan entry in the back if he needs it. Alternative terminals are provided for circuits in which the contacts have to close when the glass is smashed and for circuits in which the contacts have to open when the glass is smashed. In the former case, there is a test switch which can be reached when the whole front is opened with an Allen Key. In the latter case, the test push is omitted because the circuit is in any case of the fail safe type. The alarm point illustrated is suitable for surface mounting. Similar ones are available for flush fixing and in weatherproof versions. The current carrying capacity of the contacts should always be checked with the maker's catalogue.A thermally operated alarm point consists of a bi-metal strip that deflects when the temperature rises, and thereby tilts a tube half full of mercury. When the tube tilts the mercury flows into the other half of the tube where it completes the circuit between two contacts previously separated by air. Alternatively, the arrangement within the tube can be such that the mercury breaks the circuit when the tube is tilted. The casing of the alarm is of stainless steel. Heat detectors of this type are usually set to operate at 65℃. They are frequently used in boiler houses.A smoke operated alarm point would be used only in special circumstances which make it necessary to detect smoke rather than heat. This type can cause nuisance operation of the alarm by reacting to small quantities of smoke which have not been caused by a fire; they have for example been known to sound the alarm as a result of cigarette smoke in an office. Modern ones have adjustable sensitivity so that they can be set to avoid nuisance operation.An ionization detector contains a chamber which houses some low strength radioactive material and a pair of electrodes. The radioactive material makes the air in the chamber conductive so that a small current flows between the electrodes. The size of the current varies with the nature of the gas in the chamber and as soon as any combustion. Products are added to the air there is a sudden change in the current flowing. The detector also has a second chamber which is permanently sealed so that the current through it never changes. As long as the currents throughthe two chambers are equal there is no output, as soon as they become unbalanced there is a net output which is used to operate a transistor switch in the main circuit through the detector.The human being is the most efficient fire detector, provided that he is actually there at the time. The combination of his eyes, ears and nose allows him to differentiate between various phenomena. He can smell the difference between cigarette smoke, burning toast and something more sinister such as burning paper. He can see smoke and flames and will often hear a fire before he has noticed either the flames or the smoke. Sometimes, the first thing he notices is heat, for example, a hot partition wall. It is these phenomena that fire detector designers measure to detect the onset of fire. It is the onset of fire that is crucial; very small fires can be put out quickly and safely with portable fire extinguishers, or even a cup of coffee if detected soon enough. Obviously, the smaller the fire, the less it may be observed. Fire detectors must, therefore, be designed without the risk of false alarms. So what technology is used today to detect these phenomena? Two techniques are used for the detection of smoke: photoelectric smoke detectors and ionization smoke detectors. Photoelectric detectors are arranged so that, although visible light cannot enter, smoke can enter freely. This type of detector is based on a matt black chamber about the size of a coffee cup. A dividing wall is placed in the middle of the chamber on either side of which is located a light transmitter and a light receiver. Under normal circumstances, light from the transmitter is not received by the receiver, as the chamber is not reflective. When smoke particles enter the chamber, light bounces off these particles which results in a signal being received. A similar effect can be observed when sunshine enters a smoky room. These photo-electric detectors are highly sensitive and reliable, so long as the smoke particles are visible.Certain classes of fire, however, emit invisible smoke particles long before the fire is actually alight and in these cases an ionization smoke detector must be present. Although the design of these detectors is slightly more complicated than in the case of photo-electric detectors, the basic principle is very simple.Two metal plates are separated by several millimeters and a voltage is applied across them. Since air does not conduct electricity, no current flows. If an ionizing radioactive source is brought close to the plates then the air itself is ionized, that is, electrically charges particles are present between the plates and these allow a tiny current to flow. Any particles entering the chamber, either visible or invisible, tend to neutralize the ions, thus decreasing the current flow. It is this reduction in current which is monitored in measuring the amount of smoke that is present.Fire detection and its corresponding safety systems are crucial parts of an intelligent building. This paper reviews the current state of development of fire detection and alarm systems in the intelligent building. New technologies and concepts developed in intelligent buildings, such as advanced multi-function sensors, computer vision systems and wireless sensors, real-time control via the Internet, and integrated building service systems, have also been reviewed and discussed. These new technologies and concepts will improve the capability of fire detection systems to discriminate between fire and non-fire threats and will increase the time available for property and life protection. However, much effort is still needed to remove barriers to the further development of these new technologies.New sensor technologies will be key components in the next generation of intelligent buildings. Current intelligent buildings often have embedded processors and dedicated information networks. The new generation is expected to add the capability to learn about the buildings circumstances and its occupants needs and change the behavior of its control systems accordingly. The employment of a large number of sensors within the building will allow it to operate in a responsive manner, rather than using pre-programmed control models as are employed in the first two generations of intelligent building. The information provided by sensors includes changes in both internal and external environments of a building, such as smoke, temperature and humidity, air quality, air movement, and the number of building occupants as well as a host of other properties. The systemwill use sensors to identify how a particular person tends to react to particular circumstances and to learn different behaviors for different people. The number of sensors required to obtain this type of functionality is quite high, especially since one of the major goals of intelligent buildings is to allow individualized control of an environment. This need will increase the cost of intelligent buildings and make it difficult to manage the resulting large amount of data. Development of cost-effective sensors has consequently been identified as a key need for intelligent buildings. Fortunately, many of the properties that need to be monitored can be used for multiple purposes. Security systems that can track the entry and exit of occupants from an office building can also be used to ensure complete evacuation of a building during a fire or even, in more advanced forms, determine where occupants may be trapped and unable to escape. Similarly, parameters such as temperature and air movement are as relevant to fire detection as the maintenance of the indoor working environment. Dual use sensors and sensor systems that are flexible enough to interpret data from different events will be key to making cost efficient intelligent buildings. Efforts are being made to develop multi-function sensors for simultaneously detecting fire and monitoring indoor air quality (IAQ). Multi-function sensors that combine inputs from several different chemicals or physical processes would be expected to reduce the rate of false alarms and increase the speed of detection of real problems. They should therefore enhance fire safety while at the same time lowering total system costs. The chemical gas sensor has potential for this type of application. Chemical sensor techniques are now available for measuring almost any stable gaseous species emitted from materials and prior to or during combustion. Chemical species can be sensed through a multitude of interactions, including catalytic, electrochemical, mechanic-chemical, and optical processes. In one square inch, several hundred individual sensors can be placed in an array. By coating each sensor with a different semi-conducting material, several hundred different readings for gas signatures can be made by an expert system. Recently, one olfactory sensor array system has been developed for environmental monitoring andfor fire and smoke detection.Heat detectorsTwo types of technology are used. First, mechanical heat detectors rely on expanding solids, liquids and gases to close a switch; secondly, electronic detectors use a thermistor to measure the actual temperature. Furthermore, there are two variants: fixed temperature detectors which simply produce an output when the temperature exceeds a predetermined level and rate of rise detectors that provide an output when the rate of rise in temperature exceeds a pre-defined limit. However, rate of rise detectors invariably have an upper temperature limit at which they will provide output regardless of the rate of rise function.Flame detectorsFlame detectors look for characteristic emissions of either infrared or ultra-violet light from the flames. This type of detection is particularly useful for fires caused by volatile fuels, for example, gas and petroleum spirit. With the aid of these detectors the fire detection industry is able to move some way towards simulating the ability of the human to detect a fire. It may not be as good as the human, but it is available 24 hours a day and 365 days a year, at a very reasonable cost.Intruder detectionThere is a far wider range of intruder detectors available than is the case for fire detectors. It is necessary to thwart the intelligent criminal whose ingenuity knows no bounds: if they can get round it, they will. The simplest intruder detectors are basically switches operated from such disturbances as opening doors, walking on pressure mats, cutting essential wires etc. In these detectors, the skill is in the mechanical design. For obvious reasons, it is not possible to discuss the operation of intruder detectors in great detail here.In addition to simple contacts a wide range of movement/presence detectors are available. The most common of these is the passive infra-red (PIR) detector which can detect the heat of a human body against the natural ambient temperature. This is no mean heat considering the human body is at 37 degrees centigrade andthat is the internal body temperature, let alone skin temperature. With outdoors clothing the target may not only be some 0.5-1 degrees above the ambient. Other active systems are available, such as microwave and ultrasonic. Both of these techniques depend upon the transmission of a signal which is reflected from any moving object in range. Movement alters the frequency of the received signal (the Doppler Effect) and it is the difference between the transmitted and received signals which indicates the speed of movement.火灾报警和安全检测火灾报警电路，顾名思义，在火灾发生时发出警报。

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火灾报警器中英文对照外文翻译文献(文档含英文原文和中文翻译)Automatic fire alarm systemThe traditional electron safe alarm system mainly is through the sensor automatic detection, produces the alarm, sends out the alarm the scene or reports to the police through the special electric near distance, thus causes people's vigilance. Through many years research and the development, the present alarm apparatus may say is the class is multitudinous. As a result of the alarm apparatchik development and the social each domain anxious need, can application domain be more and more many, specially is overdevelops in the civil domain.In recent years, the infrared alarm apparatus already became reports to the police a domain hot spot,because it used was not the obviously infraredacquisition, Hereford the hiding to be good, characteristic and so on security. Infrared sensor is different according to the mechanism may divide into the light survey and the hot survey. The light acquisition sensor is uses the photon effect the acquisition aid. This kind of sensor speed of response quick, sensitive high, the examination characteristic is good, but needs cool, uses not conveniently. Moreover the component examination sensitivity and the infrared wave length concern. The hot acquisition is uses hotly releases the electricity effect the acquisition aid. After receives the goal the infrared misinterpretation increment, the temperature elevates causes the censorial certain physical quantities changes, through examination physical quantity change definite infrared emission. This kind of sensor works under the room temperature condition, examination sensitivity also very high, speed of response also very quick,moreover has nothing to do with with the infrared emission wavelength, may survey the power only to receive the background irradiation limit, the application is very convenient. This article designs atheist passive form hotly releases the electricity infrared acquisition aid. In the article mainly elaborated has hotly released electrician the principle, hotly releases content and so on Malayalam circuit which the electric detector the characteristic,the BISSAU signal processor, 555 timers composed. Finally designed completes has hotly released the electricity infrared detection alarm apparatus the hardware electric circuit.With the modern family use of fire, electricity consumption increases, the frequency of home fires is getting higher and higher. The family of fire, it iseasy to fight does not occur promptly, the lack of fire-fighting equipment and the presence of panic-stricken people, to escape unfavorable factors, such as retardation, which eventually led to a significant loss of life and property. Explore the characteristics of the family of fire and fire prevention measures. For the prevention of domestic fires, reducing the fire losses have practical significance. In the modern urban family, because of lot of people do not understand common sense home security caused by fire, so that the happy family Geog underlined blink of an eye, and some lead to destruction, but the event of household fires, improper disposal, alarm delay is caused so that people should get to know more about the main causes of household fires, master to prevent the fire of knowledge and in case of fire to protect his or her own way, timely elimination of The United Kingdom each year more than 50000 families of serious fires, most of them fire casualties and significant loss of household assets, and some result in the neighbors, more heavy fire losses. Investigate the causes of fire in time, the vast majority of home fires happen parties said that the fire always feel that things are other people with their own far away, did not think this will happen even in the top of his head.Home fires are the main reason for negligent not to take timely preventive measures .In some of our large and medium-sized cities, almost every day family fires, fire prevention is so each family must always pay attention to. If your home based on the actual situation in advance to take simple fire prevention measures, a number of tragedies are entirely avoidable.Automaticfire alarm system is in order to inform the early detection of fire, and t ake effective measures to control and fight fires, and set in a building or other pl ace of an automatic fire facilities, is that people with a powerful tool to fight the fire. Fire alarm system, fire detectors generally, regional centralized alarm alarm and composition; also be required under the project with various fire-fighting fa cilities and communication devices linked to form a central control system. Fro m automatic alarm, automatic fire fighting, evacuation guidance, system process shows that, fire up a complete file management, fire control system. Fire detect ors are fire detection devices, as in the stage of fire will produce smoke with hig h temperature flame cells. The smoke, heat and light into electrical signals throu gh the detector alarm or automatic fire extinguishing system to start fighting the fire in time. Area where the floor of alarm detector can send the signal into soun d and light alarm, and fire on the screen showing the room number; while also m onitoring the concentration of certain floors of alarm (if the monitor is located in the building fire Control Center) output signal or control automatic fire extingui shing system. Concentration of alarm signal is received by way of sound and lig ht show, and the screen also shows the specific fire floor and room number, the plane stopped taking the first alarm clock to record the timing, use of the machin e-specific phones, but also quickly to the fire alarm to give directions and. In ad dition, you can control the fire extinguishing system or signal transmission to th e fire control room.Automatic fire alarm system is by the trigger devices, fire alarm, fire alarm devices and other auxiliary functions of the device with the composition of a bu tton fire alarm system fire alarm system. It can fire early stages of burning smok e, heat and light radiation and other physical quantities, by temperature. Photogr aphic and other smoke and fire detectors into electrical signals, transmitted to th e fire alarm controller, and also shows the site of the fire, the fire record of the ti me. General fire alarm system and automatic sprinkler system, fire hydrant syste ms, smoke control systems, ventilation systems, air conditioning system, fire do ors, fire shutter, smoke screen and other related equipment interaction, automati cally or manually issue commands to start the corresponding device.(A) of the trigger devices in automatic fire alarm system, automatic or man ual fire alarm signal devices generate called trigger conditions, including fire det ectors and manual fire alarm button. Fire detector is able to fire parameters (smo ke, temperature, flame radiation, gas concentration, etc.) response, and automati cally generate a fire alarm signal devices. Fire response parameters according to different fire detectors into heat detectors, smoke detector, sensitive fire detector s, combustible gas detectors and fire detectors five basic types of composite. Dif ferent types of fire detectors for different types of fires and different places. Man ual fire alarm button fire alarm signal generated manually start the automatic fire alarm system devices, automatic fire alarm system is an indispensable compone nt of the.(B) the fire alarm device in automatic fire alarm system to receive, display and transmit fire alarm signals, and can send control signals and control function s with other auxiliary equipment as the fire alarm device instructions. Fire alarm control is one of the most basic kind. Charged with the fire alarm control fire det ectors provide a stable working power; detector and the working status of the sy stem itself; the reception, conversion, processing a warning of fire detectors Shu ck; Jinxing sound and light alarm; Hashish specific location and alarm time; the same time supporting the implementation of appropriate control and many other tasks. Fire alarm system is a core component. In the fire alarm devices, some de vices such as break, regional monitors, fire shows and other functions can not co mplete disc alarm device, which can be regarded as the evolution of fire alarm c ontroller or supplement. Under certain conditions applied, and the fire alarm dev ice fire alarm control belong. The basic function of fire alarm control are: the m ain power, backup power automatically converted, standby power charge functio n, power failure monitoring function, power functions working status indicator, power supply for the detector circuit function, control sensors or system failures, sound and light alarm, fire sound, light alarm, fire alarm and memory function, clock function unit, with priority being given fault function fire alarm, sound ala rm sound audible alarm mute and again.(C) fire alarms in automatic fire alarm system to send different from the e nvironment, sound, light the fire alarm signal device called the fire alarms. It sound, light and sound approach to the issue of fire alarm signals alarm area to warn people to adopt safe evacuation, fire fighting and rescue measures.（D)Fire control equipment in automatic fire alarm system, when receivin g the fire alarm, automatically or manually start the related fire-fighting equipme nt and display devices of their state, known as the fire control equipment. Includ e fire alarm control, automatic fire extinguishing system control device, fire hyd rant system control devices, smoke exhaust system and air conditioning and vent ilation system control device, normally open fire doors, fire shutter control devic e, the lift back down control equipment, and fire emergency radio, fire alarms, fi re communications equipment, fire evacuation signs and emergency lighting con trol devices, control devices in some or all. Fire control equipment normally inst alled in the fire control center to facilitate the implementation of centralized cont rol. While others set fire control equipment, fire fighting equipment is located i n the charged field, but its actions must be returned fire control signal, combined with the implementation of centralization and decentralization of control(E) fire alarm system power supply electrical equipment belonging to the fi re, the main power should be in the fire power, standby power use of battery. In addition to fire alarm system power controller, power supply, but also related to the system for the fire control equipment such as power supply.火灾自动报警系统传统电子安全报警系统主要是通过传感器自动检测，产生报警信号，从现场发出报警信号或通过专门电缆近距离报警，从而引起人们的警觉。

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