弱电工程外文翻译

本科毕业设计（论文）外文资料翻译系别：电气工程系专业：建筑电气与智能化班级：姓名：学号： 2007318230外文出处：《Electricity》附件：1、外文原文；2、外文资料翻译译文。

weak electricity engineeringSystem functionThe in common use building weak electricity system mainly has a few kinds as follows: (1)The telephone corresponds by letter systemCarry out telephone(include three types of facsimile machines, can see a telephone...etc.) correspondence function The star type To rushes toward structure; Use 3 types(or above) don't shield a double to wring line, deliver the frequency of signal within the scope of audio frequency.(2)Area net system in calculator bureauIs a realization to transact to automate and various data delivers of network foundation The star type to rushes toward structure Use 5 types(or above) don't shield a double to wring line, deliver number signal, the baud rate can reach to a 100 mbs the s is above.(3)Music| broadcast systemThe loudspeaker passed to install on the spot(is like places, such as market, restaurant, guest room and hallway...etc.) broadcasts music, and can pass to transmit sound machine to carry on a broadcasting to the spot Many road total line structure Deliver is certainly pressed a 120 Vs by the power enlarger output's| the audio frequency signal of 120 Ωs with drive the spot loudspeaker phonation, deliver the line use copper Xin to insulate to lead line.(4)The cabled T.V. signal assigns systemEvenly assign the cabled T.V. signal to each customer inside the building to order ;Adopt branch and assign a machine to carry on a signal allotment, for letting up signal to lose to really reduce and make each customer order the request that the signal quality attains norm rules with , its cloth line is tree type structure, and order to distribute with the form of building and the customer of dissimilarity but dissimilarity Use 75 Ω radio frequency coaxial cable, deliver many road radio frequencies signal.(5)The public security supervises and controls systemThe camera passed to install on the spot, guard against theft equipment like carry on surveillance and excrescent circumstance to report to the police to each exit and entrance and some important places of building etc. ;The video frequency signal delivers to adopt star type structure, use video frequency coaxial cable ;Control delivering of signal to adopt total line structure, the use copper insulates a cable.(6)The fire fight reports to the police systemThe system is reported to the police by a fire and the fire fight is allied the broadcasting system, fire alarm moving system, fire fight to constitute towards speaking 3 parts like telephone system.A fire reports to the police and the fire fight is allied and move system to pass constitution in the building everywhere of a fire locator, hand move to report to the police device etc. to the spot the circumstance carry on a monitor, be have already reported to the police signal, according to receiving of signal, according to in advance setting of procedure, unite the homologous equipments spreads by control fire, its signal delivers to adopt total line structure of many roads, but for important fire fight equipments(if fire fight pump, spray to sprinkle a pump, is pressing breeze machine and line up smoke breeze machine etc.) of allied move to control delivering of signal, sometimes adopt star type structure, the delivering of signal uses copper to insulate a cable.(the product having asks use double to wring line)The fire fight broadcasting system is used for to direct the spot while taking place a fire a personnel safety evacuation, adopt total line structure of many roads, the signal delivers to use copper to insulate to lead line.(the system can and music broadcasting system suitable for use) The fire alarm is two kinds of structure towards speaking that the telephone system is used for in command of spot fire fighter to carry on extinguishing fire a work, adopt star type and total line type, the signal delivers uses to shield line.(7)The exit and entrance controls systemUse calculator, intelligence Carmen equipment, such as lock and card reader...etc., carry on constitution, surveillance, control and record etc. to each exit and entrance status, carry out unify a management to each exit and entrance of building, promise mansion safety, its Tuo rushes toward structure and delivers to lie quality because of product but difference.(8)The parking lot charge manages systemPass to install under the exit and entrance ground of respond coil, respond the discrepancy of vehicle, pass artificial half auto the full-automatic charge management system, carry out a charge and control the Qi of dynamoelectric railing to shut... The system cloth's line is only limited by the exit and entrance of car field in the mansion, each exit and entrance from one set controller control, the controller can independently work as well as manage a calculator allied net with place of honor, its cloth line structure and deliver to lie quality because of product but difference.(9)Building Yu from control systemThe various examination and performance spare part passed to connect with each other with the spot controller, to mansion inside outside of the work status of various equipments(is like air condition, to the catchment, lighting, is provided to go together with equipment, such as electricity and elevator...etc.) inside various environment parameter and building carry on examination, surveillance and control, and link through a calculator network each the spot controller, carry on reasonable allotment and management to the resources and the equipments in the building, attain a comfortable, convenient, economical and dependable purpose .So far, building Yu from control system didn't yet international standard, the correspondence adopted by the product of different factory house negotiates each not same, it the spot total line and control the of total line to rush toward structure and deliver to lie quality also dissimilarity The underneath will make simple introduction towards being wide spread accepted by the international society currently and Works technique and technique for adopting.Also have the television meeting the system, expand a system and cruise more in addition system and building Yu to speak system, three forms(water, electricity, annoy form) automatically and copy form system The weak electricity system that the building of different function needs to be established is each not same.3 systems are integratedIn the middle of physically working, the design should integrate 3 aspects: etc. to consider an integrated problem between the systems of each weak electricity from the network integration, function integration and software interface.3.1 networks are integratedThe network integrates mainly on-line come to consider from the cloth of each system, make the weak electricity system of different function able to work the platform is at an unified cloth line up, so, on the other hand easy to also make on the other hand each weak electricity system to the management of clothes line systems on the spot the decoration of equipments up have larger vivid.At in common use building weak electricity system in, the telephone corresponds by letter system and the function of area net in the calculator bureau system and the hardware equipments of the use each not same, but it the network rush toward the decoration principle that the structure, information orders homology, and can use homology of delivering and lying quality and connect a plug-in, so can synthesize two cloth lines of systems as a cloth linesystem Thus, two systems can be an exploitation, the information orders of the function can change with each other and make two systems all have larger vivid, this is also we say of synthesize cloth line system(PDS).Remaining as to it's is a few systems, in the comprehensive consideration technique and economic possibility, current product because of being rushed toward by system Tuo the structure, signal deliver to lie quality and double wring line to synthesize PDS towards delivering power signal of limiting etc., its cloth line system temporarily canning not returning But, along with the continuously developing of the number signal processing theory and application technique and calculator technique, and correspondence technique...etc., future PDS will definitely develop to become the cloth line that includes more different function weak electricity systems platform.3.2 functions are integratedThe function integration includes a following both side contents:(1) the function merge Main consideration will some on the function and hardware equipments up repeated of the system merge and make to merge the system of the empress before having merger all functions of each system, with decrease equipments redundancy, avoid repeated investment In the above-mentioned system, music broadcasting system and fire fight report to the police and allied move the fire fight within system broadcasting system and then can be a system to design, but the system has to satisfy the rules of 《the fire fight automatically reports to the police a system design norm (GBJ 50116-98)》.(2) the function repair with each other See from the function, each sub- systems in the building Yu automation all have its particular function and rule over scope and respectively and independently work at ordinary times, but while taking place some and special affairs, usually needing an of each system can be in conjunction with a work, the whole system carries out overall control and management the exaltation to the processing ability that bursts affairs, exaltation building of the intelligence turn degree Is concrete of allied move to respond to include a few systems as follows:The fire fight reports to the police system →music broadcasting system When occurrence fire fight reported to the police, correspond the public broadcasting system of floor will drive strong line of cut over into an urgent broadcasting of fire fight;The fire fight reports to the police system →the public security supervise and control system When occurrence fire fight reported to the police, the public security supervised and control system to automatically be like the shooting of camera of fire alarm close by district theappearance sliced to hold to lord surveillance in the public security center and laid equal stress on some to record these shooting of cameras to be like contents with provide whether the confirmation has fire alarm occurrence to analyze with the after the event trouble reason etc.; The fire fight reports to the police system →the exit and entrance control system While confirming to take place fire fight to report to the police exit and entrance's control the each control door(the control door of important core part can establish alone) having something to do with fire alarm part in the system should automatically be placed in to open status, for the purpose of internal personnel evacuate to withdraw to get into with fire fighter;The fire fight reports to the police system →the gara ge manage system The garage management system should control garage while confirming fire fight to report to the police occurrence at the first floor or the underground layer the gateway place in open status, so that the vehicle inside the garage quickly withdraw a fire field;(at this time garage relevant of the camera should be placed in a work and record image status)The fire fight reports to the police system →the speech correspond by letter system After the fire fight reports to the police the system auto confirmation fire fight to report to the police occurrence, immediately pass the speech in the mansion correspondence system reports to the police to the fire fight bureau and deliver concerning the information, report to the police to supervisor's section in the mansion at the same time;Building Yu from control system →the public security supervise and control system When building Yu from control system to have difference to report to the police or trouble, the public security supervision system can automatically will report to the police the shooting of camera of close by district to be like appearance to slice to hold to lord surveillance in the public security center and lay equal stress on some to record these shooting of cameras to be like contents to provide after the event analysis the reason etc.;The public security supervises and controls system →building Yu from control system When the public security system reports to the police, can unite elevator control system, the elevator doesn't stop to depend to report to the police a layer, or stop to depend a public security member appointed layer;The exit and entrance controls system →the public security supervise and control system When control door at not work when someone hold card into or take place illegal incursion the public security supervises and controls a system auto will get into of control door or report to the police a shooting of the camera of ordering the close by district to be like appearance toslice toward the public security center lord surveillance hold, lay equal stress on some to record these shooting of cameras to be like contents to check when it's necessary by providing; The garage manages system →the public security supervise and control system When the garage has vehicle discrepancy, the public security supervises and controls a system auto to be like the shooting of camera of garage door appearance to slice to hold to lord surveillance in the public security center and lay equal stress on some to record these shooting of cameras to be like contents to check when it's necessary by providing.In fact, the function between each system is integrated and allied to move to respond to have no one mode of unified or fix, can establish according to the effective demand.The function integrates a purpose just, in fact existing two kinds of modes, 1 kind is at each statures system on build up higher and first-degree management and control network, another is with building Yu from control system for center of integrated mode No matter choose which integrated mode, key techniques' all wanting to work out a correspondence problem between each system , while making sure a solution, must adopt theory forerunner and technique maturity and wide spread accept for industry and the correspondence adopting negotiate.The building Yu been widespread accepted by the international society currently from control correspondence agreement of realm, is provided heat by the United States and make cold regulate the association establishment of engineer with air, and become standard ANSI of of ASCII|ASHRAE Standard 135-1995), it matches ISO(international standardizing organization) OSI(open system with each other connect)7 F model, forgiving 5 kinds already mature network correspondence agreement, including correspondences such as ether net and Long Talk etc. agreement Among them, the ether net correspondence agreement is an OA system to widespread use of a kind of correspondence agreement, majority of network operate systems all support this correspondence agreement But the Works technique is the new generation that the United States' Echelon company develops the spot total line technique, its outstanding advantage is to support arbitrarily to rush toward structure and support variety's delivering to lie quality(include a double to wring line, electric power line, wireless electric wave, infrared ray, coaxial cable and fiber optic), and variety lie quality can mix to use in the same network, as a result consumedly simplified engineering construction and system to be finished after of change to set up, extension and maintenance work Therefore, building Yu according to standard from control system, can a little bit easily carry out at the its control total line class and the integration of OA system, again because it forgives of the correspondence negotiatesupport double to wring line and star type to rush toward structure, as a result can use PDS as its signal to deliver path.弱电工程弱电系统功能常用的建筑弱电系统主要有以下几种：(1) 电话通信系统实现电话(包括三类传真机、可视电话等)通信功能；星型拓扑结构；使用三类(或以上)非屏蔽双绞线，传输信号的频率在音频范围内。