毕业设计-单片机红外遥控外文翻译

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红外发射和接收电路设计外文翻译

外文文献原稿和译文原稿IntroductionInfrared remote control system is mainly composed by the remote control transmitter, integrated receiver head, microcontroller, interface circuit shown in Figure 1. The remote control is used to generate the remote encoder pulse drive infrared emission control output of the infrared remote control signal, the remote control receiver on the remote control signal amplification, detection, shaping, demodulation remote encoder pulse. The remote control encoder pulse is a serial binary code for the infrared remote control system, the serial code input to the microcontroller, its internal CPU instruction decode on the remote control, and perform remote control functions. Using the remote control as the input of the control system, we need to address the following key questions: how to receive the infrared remote control signal; how to identify the infrared remote control signal, and decoding software design, design of control procedures.SCM historySCM was born in 1971, has gone through three major phases of the SCM, the MCU SoC.It consists of computing device, controller, memory, input output devices.Its full name is a single-chip microcomputer, is typical of embedded micro-controller (Microcontroller Unit), the commonly used letters of the abbreviation MCU single-chip, and it was first used in the field of industrial control.Master microcontroller technology to enable more people in the industry, students, enthusiasts, product developers, the question arose due to the extensive application of SCM in the field of industrial control, microcontroller development board, the more famous such as e-DZR-01A microcontroller development board.Microcontroller chip dedicated processor developed from the CPU.The firstdesign concept by a large number of peripherals and CPU integrated in a single chip, the computer system is smaller, more easily integrated into complex and require strict control equipment on the volume.Single-chip, also known as single-chip microcontroller, it is not the completion of a logical function of the chip, but a computer system integrated onto one chip.Equivalent to a mini-computer and computer, microcontroller only the lack of I / O devices.SCM rely on the program is running, and can be modified.Different functions through different programs, especially the special unique function, which is the other devices require much effort to do, while others make great efforts it is difficult to do.A not very complex functions using pure hardware to get the words of the 1950s developed 74 series, or 60 during the CD4000 series, the circuit must be a big PCB board!If successful on the market in the United States in the 1970s series of microcontrollers, the result will be different!Just because a program written by the MCU through you can achieve high intelligence, high efficiency and high reliability!Microcontroller for cost sensitive, so accounting for the dominance of the software or the lowest level assembly language, which is the lowest level than binary machine code language, since such low-level why use it?A lot of high-level language has reached a level of visual programming, why not?The reason is simple, is the microcontroller does not have a home computer as the CPU, also not as hard as mass storage devices.A visual high-level language to write small programs inside even if there is only one button, will reach tens of K of size!Nothing in terms of home PC's hard drive, but for SCM in terms of is not acceptable.SCM in the utilization of hardware resources must be high, so the compilation of the original while still in heavy use.The same reason, if the computer giant's operating system and application software to get home PC run up to the home PC can not afford.It can be said that the twentieth century across the three "power" era of the electrical era, the electronic age and has now entered the computer age.However, such a computer, usually refers to a personal computer, or PC.It is by the host, keyboard, monitor, and so on.Another type of computer, not how most people are familiar with.This computer is smart to give a variety of mechanical microcontroller(also known as micro-controller).The name suggests, the smallest of this computer system using only one IC to make a simple calculation and control.Because of its small, usually hidden in a controlled mechanical "stomach".Throughout the device, it plays like the role of the human mind, it is wrong, the entire device was paralyzed.Now, this single chip field of use has a very wide, such as smart meters, real-time industrial control, communications equipment, navigation systems, home appliances and so on.A variety of products using the SCM, you can play the effect of product upgrades, often preceded by an adjective in front of the product name - "smart", such as smart washing machines.Some factories or other amateur electronics developers to engage in out of certain products, not the circuit is too complicated, too simple and can easily be imitation.The reason may be stuck in the product does not use a microcontroller or other programmable logic devices.Microcontroller applicationsMCU to infiltrate all areas of life, almost difficult to find which areas of the microcontroller trail.Navigation device of the missile, aircraft, various instrument control, computer network communications and data transmission, industrial automation and process real-time control and data processing, widely used smart card IC, civil luxury car security system, VCR,cameras, the control of automatic washing machines, and program-controlled toys, electronic pets, etc., which are inseparable from the microcontroller.Not to mention the field of automatic control, robotics, intelligent instruments, medical equipment.Therefore, the learning, development and application of the SCM will create a number of computer applications and intelligent control of the scientists, engineers.The microcontroller is widely used in the field of instrumentation, home appliances, medical equipment, aerospace, equipment for the intelligent management and process control, generally can be divided into the following categories:1. On smart instrumentationThe microcontroller has a small size, low power consumption, and control functions, and expansion of the advantages of flexibility, miniaturization and easy to use, widely used in instrumentation, combined with different types of sensors can berealized such as voltage, power, frequency, humidity, temperature,flow, speed, thickness, angle, length, hardness, elements, pressure and other physical measurement.SCM makes the digital instrumentation, intelligent, miniaturization and more powerful function than the use of electronic or digital circuits.Such as precision measuring equipment (power meter, oscilloscope, analyzer).2.In industrial control applicationsMCU can constitute various forms of control systems, data acquisition systems.Such as factory assembly line of intelligent pipe3.in Household AppliancesIt can be said of home appliances is basically using the MCU control, electric rice praise, washing machines, refrigerators, air conditioners, color TVs, and other audio video equipment, then the electronic weighing equipment, varied, omnipresent.4.in the field of computer networks and communicationModern microcontroller with universal communication interface can be easily and computer data communications, provides excellent material for use in computer networks and communication devices, communication equipment basically to the MCU intelligent control from themobile phones, telephones, small program-controlled switchboards, building automated communications call systems, train radio communications, and then to the ubiquitous mobile phones in their daily work, trunking mobile communication radios.5.Chip in the field of medical equipmentThe microcontroller uses in medical devices is also quite extensive, such as medical ventilator, a variety of analyzers, monitors, ultrasound diagnostic equipment and hospital beds call system and so on.6.Modular applications in a variety of large appliancesSome dedicated microcontroller designed for specific functions, modular applications in a variety of circuit, without requiring the use of personnel to understand its internal structure.Integrated single-chip, such as music, seemingly simple function, miniature pure electronic chip (as opposed to the principle of the tape drive), you need a complex similar to the principle of the computer.Such as: themusic signal in digital form in memory (similar to the ROM), read by the microcontroller into analog music signal (similar to the sound card).In large circuits, this modular application greatly reduce the size, simplifying the circuit, reducing the damage, error rate, is also convenient to replace.7.Chip in the field of automotive equipmentThe microcontroller is widely used in automotive electronics, such as automotive engine controllers, intelligent electronic controller based on CAN bus automotive engine, GPS navigation system, abs anti-lock systems, braking systems, etc..In addition, the microcontroller business, finance, scientific research, education, defense, aerospace and other fields has a very wide range of applications, microcontroller development prospects are very objective.Speaking in general terms: the MCU's small size, light weight, inexpensive, and provide favorable conditions for learning, application and development.At the same time, learning to use the microcontroller is the best choice for the understanding of computer theory and structure.SCM is the best choice for people to study and application of related technologies.Master chip AT89S51The AT89S51 ATMEL Corporation in the United States low-power, high-performance CMOS8 bit microcontroller, on-chip containing 4k bytes of system programming of flash read-only program memory, the device using ATMEL high density nonvolatile memory technology to produce compatiblestandard 8051 instruction set and pin.It combines the Flash program memory can Programming (ISP) can also be used the traditional method of programming and general-purpose 8-bit microprocessor on a single chip.Features OverviewAT89S51 provides the following standard features: 4k bytes of Flash flash memory, 128 bytes of internal RAM, 32 I / O port lines, Watchdog Timer (WDT), two data pointers, two 16-bit timer / counters, a fivetwo vector interrupt structure, a full duplex serial port, on-chip oscillator and clock circuitry., AT89S51 can bereduced to the 0Hz static logic operation, and supports two software selectable power saving modes.Free way to stop the CPU, but allows the RAM, timer / counters, serial communication port and interrupt system to continue to work.The power down mode to save the contents of RAM, but the oscillator is stopped and prohibited all other parts of the work until the next hardware reset.In view of the subject requirements, the AT89S51 chip to achieve the purpose of more convenient, fast and comprehensive.译文介绍红外遥控系统主要由遥控发射器、一体化接收头、单片机、接口电路组成，如图一所示。

外文翻译-- 基于STC单片机的红外遥控开关系统的设计

JSJ-1302计算机信息工程学院2013 届毕业设计(论文)外文阅读与翻译毕业设计题目基于STC单片机的红外遥控开关系统的设计外文翻译题目Decoding Infraed Remote Controls Using a PIC16C5X Microcontroller专业计算机信息科学与技术班级姓名学号指导教师职称介绍：家用电子工业已经应用红外遥控器控制电视机，录像机和有线电视很多年了。

同样的技术最近开始应用于工业应用以替代小键盘。

可以通过PIC16C5X译解大多数的红外信号。

这份说明书是描述如何破解的。

唯一用来译解IR信号的强制性硬件是红外接收仪。

它的两种类型的用法在这里都有说明。

两种模块类型都经常被用于家用电子工业。

第一种类型响应的已调制的红外信号大概为40KHz。

第二种响应未调制的红外脉冲并且有受限范围。

每种类型的硬件成本都不高于2美元。

此处描述了三种PIC16C5X应用程序，说明了如何用它们来创建一个算法使其能够破译任何遥控信号。

每种PIC16C5X应用程序表示在映射出一个预先存在的红外格式的一个步骤。

最终的应用程序是一个用来完全实现的示例的红外信号解码和解调的一种Teknika电视遥控器。

三个层次的红外线信号典型的红外信号遥控器有三层。

用于这些层的名字没有被标准化。

在这个应用程序中注意他们被称为“红外、调制和串行数据。

红外层是种发射方式。

红外线是一种因为波长太长以至于看不到的光。

虽然你不能看到红外光束,但它是光的一种形式,所以如果你不能看到目标设备,你就不能用红外信号控制它。

控制绕过拐角,通过不透明的材料、RF,通常使用超高频信号。

虽然这个应用程序注没有进一步提到RF,这里介绍的许多东西都是可以用作一个射频传输介质。

这个频率层爆出的红外信号通常是在频率调制32.75千赫和56.8千赫之间。

这样做是为了减少环境光的影响。

虽然考虑到这一层,但还是可选的。

如果不调整红外格式的输出,发送脉冲与未调整的红外线则相反。

红外遥控系统毕业论文中英文资料对照外文翻译文献

中英文资料对照外文翻译文献红外遥控系统摘要目前红外数据通信技术是在世界范围内被广泛应用的一种无线连接技术，它也可以被许多软硬件平台所支持。

红外收发器产品具有成本低，体积小，传输速率快，点对点传输安全性好，不受电磁干扰等特点，可使得信息在几个不同产品器件之间快速、便捷、安全地交换与传输。

红外数据通信技术在短距离无线传输领域内有着十分显著的优势，红外遥控收发系统的设计和存在具有非常高的运用价值。

目前，红外收发器产品在便携式产品中的应用潜力很大。

全世界约有1亿5千万台设备和仪器是采用红外数据通信技术的，在电子产品、工业设备、医疗设备等领域内使用范围很广。

几乎所有笔记本电脑、手机都配置红外收发器接口。

伴随着红外数据传输技术的愈发成熟、生产和使用成本下降，红外收发器在短距离通讯领域内将会得到更加广泛的应用。

设计这个系统的目的是用红外线作为传输媒介来传输操作者或用户的操作信息和指令，然后由接收器电路翻译出原信号，主要是利用编码芯片和解码芯片对信号进行调制解调，这其中，编码芯片用的是台湾生产的PT2262，解码芯片是PT2272。

它们的主要工作原理是：通过编码键盘可以为PT2262提供输入信息，PT2262对输入的信息进行编码并加载到38KHZ 的载波上并调制红外发射二极管，再将其辐射到空间，然后再由接收系统接收信号并解调出原始的信息内容，由PT2272对原信号进行解码，从而驱动相应的电路完成用户的操作指令和操作要求。

关键字：红外线；编码；解码；LM386；红外收发器。

1 绪论1．1 课题研究的背景及意义目前，在世界范围内，红外数据通信技术是被广泛使用的一种无线连接技术，被许多的硬件和软件平台所支持。

是一种通过数据脉冲与红外脉冲之间的相互转换实现无线数据收发的技术。

基于STc单片机的红外报警设计毕业设计(外文翻译)

摘要随着社会的进步和科学的发展，人们的工作、生活和通讯、信息的关系日益紧密。

信息化社会在改变人们生活方式与工作习惯的同时，也对传统的住宅提出了挑战，社会、技术以及经济的进步更使人们的观念随之巨变。

人们对家居的要求早已不只是物理空间，更为关注的是一个安全、方便、舒适的居家环境。

为了创造一个安全的居家环境，报警器便是必不可少的工具。

现在市场上主要有压力触发式防盗报警器、开关电子防盗报警器和压力遮光触发式防盗报警器等各种报警器，但这几种比较常见的报警器都存在一些缺点。

所以本设计采用了热释电红外传感器，它的制作简单、成本低，安装比较方便，而且防盗性能比较稳定，抗干扰能力强、灵敏度高、安全可靠。

本系统包括硬件和软件设计两个部分。

硬件部分包括单片机控制电路、红外探头电路、驱动执行报警电路等部分组成。

处理器采用51系列单片机STC89C51。

整个系统是在系统软件控制下工作的。

关键词：红外报警器；STC89C51；单片机；红外传感器AbstractWith the social progress and the development of science, the way people work, live and communications, and information about the relationship between the increasingly close. The information society is changing the way people live and work habits while also traditional residential challenges, social, technological and economic progress to the mindset of the people followed changes. The home has long been not only the physical space, more attention is a safe, convenient and comfortable living environment.In order to create a safe home environment, the alarm is an essential tool. Market pressure triggered the anti-theft alarm, the switching electronic anti-theft alarm and pressure blackout triggered burglar alarm alarm, but several of the more common alarm, there are some drawbacks. This design uses a pyroelectric infrared sensor, it create a simple, low-cost, more convenient to install, and anti-theft performance is relatively stable, strong anti-interference ability, high sensitivity, safe and reliable.The system includes both hardware and software design. The hardware part includes the MCU control circuit, infrared probe circuit to drive the implementation of the alarm circuit parts. The processor uses 51 series microcontroller STC89C51. The whole system is working under the control of the system software.Keywords:infrared alarm; STC89C51; microcontroller; infrared sensor目录1 绪论 (1)1.1防火防盗报警器概况 (1)1.1.1 红外报警器技术的发展 (1)1.1.2 红外报警器技术的现状 (3)2基于单片机的报警器的设计方案 (4)2.1方案准备 (4)2.2设计方案 (4)2.2.1 总体框图 (5)2.2.2 总电路设计.................................................................................... . (6)3系统硬件设计 (7)3.1主要器件介绍 (8)3.1.1 单片机的发展史 (8)3.1.2 常见单片机简介 (8)3.1.3 STC89C51的基本结构 (8)3.1.4 STC89C51单片机的的封装和引脚 (12)3.2传感器电路设计 (13)3.2.1 红外传感器简介 (15)3.2.2 声光报警元件 (16)4 系统软件设计 (17)4.1编程KEIL环境介绍 (17)4.2程序流程 (19)4.3主程序 (19)5 调试与仿真 (22)5.1硬件调试 (22)5.2软件调试 (21)5.3系统调试 (21)5.4调试的步骤 (22)5.5PROTEL软件介绍 (24)结论 (256)致谢 (27)参考文献 (28)附录A英文原文 (29)附录B汉语翻译 (38)附录C 程序 (45)附录D实物图 (46)附录E电路原理图 (47)1 绪论随着时代的不断进步，电子电器的飞速发展.人民的生活水平有了很大提高人们对自己所处环境的安全性提出了更高的要求，尤其是在家居安全方面。

单片机红外遥控外文翻译

Infrared Remote And Chips Are IntroducedPeople's eyes can see the visible wavele ngth from long to short accord ing to the arrangement, in order to red, orange, yellow, green, green, blue, violet. One of the red wavelengths for 0.62 ~ 0.76 mount, Purple is 0.38 wavelength range ~ mount. Purple is shorter than the wavelength of light called ultraviolet ray, red wavele ngths of light is Ion ger tha n that of in frared light. In frared remote control is to use wavelength for 0.76 ~ 1.5 mount between the near in frared to tran sfer con trol sig nal.Commo nly used in frared remote con trol system of gen eral poi nts tran smit and receive two parts. The main component part for the launch of infrared light emitting diode. It is actually a special light emitting diode, due to its internal material differs from ordinary light emitting diode, resulting in its ends on certain voltage, it is a rather infrared light. Use of infrared light emitti ng diode the in frared wavele ngths, for 940nm appeara nee and ordin ary, just the same light emitting diode five different colors. Infrared light emitting diode gen erally have black and blue, tran spare nt three colors. Judgme nt of infrared light emitting diode and judgment method, using a millimeter to ordinary diode electric block measure of infrared light emitting diode, reverse resista nee. The in frared light emitti ng diode lumin esce nce efficie ncy to use special instrument to measure precise, and use only spare conditions to pull away from roughly judgment. Receiving part of infrared receiving tube is a photose nsitivediode.In actual application of it receiving diode to reverse bias, it can work normally, i.e., the infrared receiving circuit application in diode is used to reverse, higher sensitivity. Infrared receiving diode usually have two round and rectangular. Due to the power of infrared light emitting diode (or less commonly 100mW), so ir receiving diode received signals is weak, so will increasehigh-gain ones.the amplifiercircuit.In com mon CX20106A, etc. PC1373H moo n in frared receivi ng special amplifier circuit. In recent years both amateur or formal products, mostly using in frared recei vinghead fini shed. The head of in frared recei ving product packages gen erally has two kin ds: one kind USES sheet shield ing, A kind of plastic packaging. There are three pin, namely the power is (VDD), power negative (GND) and data output (VO or OUT). Infrared receiving head foot arrangement for types varied, manufacturer's instructions. Finished the advantages of infrared receiving head is not in need of sophisticated debugg ing and shell scree n, use rise as a tran sistor, very convenient. But whe n used in the infrared receivingattention finished first carrier frequency.In frared remote com mon carrier freque ncy for 38kHz, this is tran smitted by using 455kHz Tao Zhe n to decide. At the launch of crystals were in teger freque ncy, freque ncy coefficie nts, so com mon ly 12, so 455kHz 宁12 hun dredth kHz 38kHz hun dredth 379,000. Some remote con trol system adopts 36kHz, 56kHz, etc. general 40kHz launched by thecrystals of oscillation freque ncy to decide.In frared remote characteristic is not in flue nee the surro unding environment and does not interfere with other electric equipment. Due to its cannot pen etratewalls, so the room can use com mon household applia nee of remote control without mutual interferenee, Circuit testing is simple, as long as give n circuit connection, gen erally does not n eed any commissi oning can work, Decoding easily, can undertake multiple remote control. Because each manufacturer produces a great deal of infrared remote application-specific integrated circuit, when need press diagram so jip. Therefore, the infrared remote now in household applia nces, in door close (less tha n 10 meters) in the remote control is widely used.Multiple infrared remote control system of infrared emission control buttons, there are many parts general representative of different control function. Whe n pressed a butt on, corresp ondin gly in the receiver with differe nt output.Receiving the output state can be roughly divided into pulse, level, selflock ing and in terlock, data five forms. "The pulse output is accordi ng to laun ch" whe n the butt on, the receiver output term in als output corresp onding "effective", a pulse width 100ms in gen eral. "Level" refers to the output launch press butt on, the receiver output corresp onding output level ", "effective transmit to loosen the receiver" level "disappears. This"effective pulse" and "effective", may be of high level is low, and may also depe nd on the output corresp onding static state, such as feet for low, static "high" for effective, As for the static, "low" high effective. In most cases, "high" for effective. "Since the lock" refers to launch the output of each time you press the butt on, a receiver output corresponding change, namely originally a state for high level into a low level, originally for low level into high level. The output power switch and mute as control etc. Sometimes also called the output form for "inv ert". "The in terlock" refers to multiple outputs each output, at the same time only one output. The TV sets of this case is selected, the otheris like the light and sound in put speed, etc."Data" refers to launch the output some key, use a few output form a bi nary nu mber, to represe ntdiffere nt keystroke.Normally, the receiver except a few data output, but also a "valid" output data, so the timely to collect data. This output form with single-chip microcomputer or are com monly used in terface. In additi on to the above output form outside, still have a "latch" and "temporary" two forms. The so- called "latch" refers to launch the output signal of each hair, the receiver output corresponding ", "new store until you receive signals. "Temporary" output and the introductionof "level" output is similar.Remote dista nce (Remote Con trol effect of RF Remote Con trol dista nce) are the major factorsasfollows:un ched in power tran smissi on power: while dista nee, but great power consumpti on, easy to gen eratenterfere nee.2.and receiving the receiver sensitivity, receiving, remote distanee in creased sen sitivity to improve, but easy to cause disturba nee maloperati on or abuse.3.antenna, using linear antenna, and parallel, remote distanee, but occupies a large space, in use the antennaspin, pull can in crease the remote dista nee.4.and the higher height: antenna, remote farther, but by objective eon diti ons.5. a nd stop: curre nt use of wireless remote use of UHF band stipulated by the state, the propagation characteristics of approximate linear transmission, light, small, transmitters and receivers diffraction between such as walls are block ing will greatlydisco un ted remote dista nee, if is rein forced eon crete walls, due to theabsorpti on effect eon ductor, radiowaves.Con sideri ng the desig n of hardware volume small to be embedded in the remote control, so we chose 20 foot single-chip chip AT89C2051. Below is the introduction of the function.(1)AT89C2051 internal structure and performaneeAT89C2051 is a byte flash 2K with programmable read-only memory can be erased EEPROM (low voltage, high performanee of eight CMOS microcomputer. It adopts ATMEL of high-density non-volatile storage tech no logy manu facturi ng and in dustrial sta ndard MCS - 51 in structio n set and lead. Through the comb in ati on of sin gle chip in gen eral CPL1 and flash memory, is a strong ATMEL AT89C2051 microcomputer, its application in many embedded control provides a highly flexible and low cost solutions. The compatible with 8051 AT89C2051 is CHMOS micro eontroller, the Flash memory capacity for 2KB. And CHMOS 80C51 process,have two kinds of leisure and power saving operation mode. The performanee is as follows.5.CUP, 2KB Flash memory,Worki ng voltage range 2.7-6V, 128KB data storage.The static worki ng way: 0-24MHz,15 root input/output line.A programmable serial, 2 a 16-bit timing/counters.There is a slice of in sideprecisio nsimulatio n comparator, 5thei nterrupt sources,2 priority.Programmable serial UART channel, Directly LED driver output,The internal structureof AT89C2051 is shown in figure 1.Figure 1 AT89C2051 in terior structure(2)AT89C2051 chip pin andfunctionIn order to adapt to the requirement of intelligent instrument, embedded in the chip foot AT89C2051 simplified configuration, as shown in figure b. The major cha nges to: (1) the lead foot from 20 to 40 wires, (2) in creased a simulated comparator.=DiagrambAT89C2051 foot figure.AT89C2051 pin fun ctio n:1.the VCC: voltage.1.to GND.1.P1 mouth: P1 mouth is an 8-bit two-way I/O port. P1.2 ~ P1.7 mouth pin theinternal resista nee provides. P1.0 and P1.1 requireme nts on the exter nal pull-up resistors. P1.0 and P1.1 also separately as piece in side precisi on simulati on comparator with in put (AIN0) and reversed-phasei nput (AIN1). Output buffer can absorb the P1 mouth 20mA current and can directly LED display driver. Whe n P1 mouth pin into a "1", can make its in put. Whe n the pin P1.2 ~ P1.7 as in put and exter nal dow n, they will be for the internal resista nee and flow curre nt (IIL). I n flash P1 mouth duri ng the procedure and program code datareceiving calibration.2.P3: the P3.0 ~ P3.5 P3, P3.7 is the in ternal resista nce with seven twoway I / 0 lead. P3.6 for fixed in puts piece in side the comparator output sig nal and it as a gen eral I/O foot and in accessible. P3 mouth buffer can absorb 20mA curre nt. When P3 mouth pin in to "1", they are the internal resista nee can push and in put. As in put, and the low exter nal P3 mouth pin pull-up resistors and will use curre nt (IIL) outflow. P3 mouth still used to impleme nt the various fun etio ns, such as AT89C2051 show n in table P3 mouth still receive some for flash memory programming and calibration of program con trol sig nals.5.RST: reset in put. RST once, all into high level I/O foot will reset to "1". When the oscillator is running, continuous gives RST pin two machine cycle of high level can finish reset. Each machine cycle to 12 oscillator or clock cycle.6.XTAL1: as the oscillator amplifier in put and inv erse internal clock gen eratori nput.7.XTAL2: as the oscillator reversed-phase the amplifier's output.P3 mouth function as isshown in table 1.Table 1(3)the software and hardware constraintsAT89C2051Due to the foot of the chip AT89C2051, no set limits of external storage in terface, so, for exter nal memory read/write in structio ns as MOVX etc.Due to 2KB ROM, so, the space to jump instruction should pay attention to the destination address range (transfer 000H - 7FFH), beyond the range of addresses, will not meet wrong results. The scope of data storage is OOH (7FH --whe n stack man ipulatio n), alsoshould be no ticed.The in put sig nal is simulated by the origi nal P3.6 foot into the microcontroller, sothe original P3.6 foot.Un able to exter nal use. Simulati on comparator can compare two simulation, if the size of the voltage external A D/A converter and its output as A comparator an alog in put, and by simulat ing the comparator ano ther in put voltage to be measured, through the introduction of the software method can realize the A/D con versi on.8.the Flash memory AT89C2051)Provide a 2KB of si ngle-chip AT89C2051 in Flash memory chips, which allows theonline program to modify or use special programming program ming.(1)Flash memory en crypti onAT89C2051 SCM has 2 encryption, can programming (P) or programming (U) to obtain different encryption functionality. Encryption functionality table asshown in table 1-1.En crypt a conten terased only through chips to eraseoperatio n.(2)Flash memory program ming and procedures the piece in side chip AT89C2051 Flash memory program ming.Note:1.the cou nters RESET at an EPROM in side the risi ng edge, and 000HRESET to XTAL1 by foot is executed,pulse count.2.piecesof 10ms to erasePROG pulse.3.duri ng the programmi ng P3.1 pulled low RDY/BSY in structio ns.⑶AT89C2051 SCM in Flash memory chips program ming steps are as follows:1.in the seque nee is the VCC GND pin, add worki ng voltage, XTAL1 pin RESET, receiving GND pin, other than the abovetime, waiting for 10ms.2.In P3.2 pin RESET,heighte ning level.3.In P3.3, P3.4, P3.5, P3.7 pinjadd model multilevel.4.P1.0 P1.7 -- for the 000H un itadd data bytes.5.RESET to increasethe 12V activation programming.6.P3.2 jump to a one byte programming or encryption.7.calibration has been programming, data from 12V to RESET logic level "H" and setP3.3 P3.7 -- for the correct level, and can output data in P1 mouth.8.For the n ext addresses) in the unit XTAL1 byte program ming, a pulse, make address counter add 1, in mouth add programming data.9.programming and calibration circuit figure c, d.Figure c programming circuitFigure d calibration circuit Explanation:(1)P3.1 during programming instructionsto below RDY/BSY,(2)single erasingthe PROG 10ms need,(3)internal EEPROM address coun ter on the rising edge RESET, and 000H RESET to XTAL1 by foot pulses are executed.Along with the rapid developme nt of scie nee and tech no logy, huma n society has un derg one earth-shak ing cha nges. Make our life more colorful. I n these cha nges, the remote control tech no logy has bee n widely permeatesTV, aerospace,military, sports andother product ion, all aspects of life. From the broad sense, all equipped with electric locomotive facility or electrical switches, if feel some n ecessary, can con sider to improve existi ng with remote control device, the operation fixed switch to realize the remote operation of the original equipment,stop, the variable,etc. Function.switch, for example, can be used to control the electric control switch the light switch, We design the infrared remote control system to realize the opponent switch quantity control. Infrared remote characteristic is not in flue nce the surro unding en vir onment and does not in terfere with other electric equipment. Due to its cannot penetrate walls, so the room can use com mon household applia nce of remote con trol without mutual in terfere nce, Circuit testi ng is simple, as long as give n circuit conn ecti on, gen erally does not need any commissioning can work, Decoding easily, can undertake multiple remote con trol.红外遥控人的眼睛能看到的可见光按波长从长到短排列，依次为红、橙、黄、绿、青、蓝、紫。

单片机红外遥控外文翻译知识交流

Infrared Remote And Chips Are IntroducedPeople's eyes can see the visible wavele ngth from long to short accord ing to the arrangement, in order to red, orange, yellow, green, green, blue, violet. One of the red wavelengths for 0.62 ~ 0.76 mount, Purple is 0.38 wavelength range ~ mount. Purple is shorter than the wavelength of light called ultraviolet ray, red wavele ngths of light is Ion ger tha n that of in frared light. In frared remote control is to use wavelength for 0.76 ~ 1.5 mount between the near in frared to tran sfer con trol sig nal.Com mon ly used in frared remote con trol system of gen eral poi nts transmit and receive two parts. The main component part for the launch of infrared light emitting diode. It is actually a special light emitting diode, due to its internal material differs from ordinary light emitting diode, resulting in its ends on certain voltage, it is a rather infrared light. Use of infrared light emitti ng diode the in frared wavele ngths, for 940nm appeara nee and ordin ary, just the same light emitting diode five different colors. Infrared light emitting diode gen erally have black and blue, tran spare nt three colors. Judgme nt of infrared light emitting diode and judgment method, using a millimeter to ordinary diode electric block measure of in frared light emitti ng diode, reverse resista nee. The in frared light emitti ng diode lumin esce nce efficie ncy to use special in strume nt to measure precise, and use only spare con diti ons to pull away from roughly judgme nt. Recei ving part of in frared recei ving tube is a photose nsitive diode.In actual application of it receiving diode to reverse bias, it can work normally, i.e., the infrared receiving circuit application in diode is used to reverse, higher sensitivity. Infrared receiving diode usually have two round and rectangular. Due to the power of infrared light emitting diode (or less commonly 100mW), so ir receiving diode received signals is weak, so will in crease high-ga in on es.the amplifier circuit.In common CX20106A, etc. PC1373H moon infrared receiving special amplifier circuit. In recent years both amateur or formal products, mostly using in frared recei ving head fini shed. The head of in frared recei ving product packages gen erally has two kin ds: one kind USES sheet shield ing, A kind of plastic packaging. There are three pin, namely the power is (VDD), power negative (GND) and data output (VO or OUT). Infrared receiving head foot arrangement for types varied, manufacturer's instructions. Finished the advantages of infrared receiving head is not in need of sophisticated debugg ing and shell scree n, use rise as a tran sistor, very convenient. But whe n used in the infrared receiving attention finished first carrier frequency.In frared remote com mon carrier freque ncy for 38kHz, this is tran smitted by using 455kHz Tao Zhen to decide. At the launch of crystals were integer frequency, frequency coefficients, so commonly 12, so 455kHz 宁12 hun dredth kHz 38kHz hun dredth 379,000. Some remote con trol system adopts 36kHz, 56kHz, etc. general 40kHz launched by the crystals of oscillation freque ncy to decide.In frared remote characteristic is not in flue nee the surro unding environment and does not interfere with other electric equipment. Due to its cannot pen etrate walls, so the room can use com mon household applia nee of remote control without mutual interferenee, Circuit testing is simple, as long as give n circuit connection, gen erally does not n eed any commissi oning can work, Decod ing easily, can un dertake multiple remote con trol. Because each manufacturer produces a great deal of infrared remote application-specific integrated circuit, when need press diagram so jip. Therefore, the infrared remote now in household applia nces, in door close (less tha n 10 meters) in the remote con trol is widely used.Multiple infrared remote control system of infrared emission control buttons, there are many parts general representative of different controlfunction. Whe n pressed a butt on, corresp ondin gly in the receiver with differe nt output.Receiving the output state can be roughly divided into pulse, level, self-lock ing and in terlock, data five forms. "The pulse output is accord ing to laun ch" whe n the butt on, the receiver output term in als output corresp onding "effective", a pulse width 100ms in general. "Level" refers to the output launch press butt on, the receiver output corresp onding output level ", "effective transmit to loosen the receiver" level "disappears. This "effective pulse" and "effective", may be of high level is low, and may also depe nd on the output corresponding static state, such as feet for low, static "high" for effective, As for the static, "low" high effective. In most cases, "high" for effective. "Si nee the lock" refers to launch the output of each time you press the butt on, a receiver output corresp onding cha nge, n amely origi nally a state for high level into a low level, orig in ally for low level into high level. The output power switch and mute as control etc. Sometimes also called the output form for "i nv ert". "The in terlock" refers to multiple outputs each output, at the same time only one output. The TV sets of this case is selected, the other is like the light and sound in put speed, etc."Data" refers to launch the output some key, use a few output form a bi nary nu mber, to represe nt differe nt keystroke.Normally, the receiver except a few data output, but also a "valid" output data, so the timely to collect data. This output form with single-chip microcomputer or are com monly used in terface. In additi on to the above output form outside, still have a "latch" and "temporary" two forms. The so-called "latch" refers to launch the output signal of each hair, the receiver output corresponding ", "new store until you receive signals. "Temporary" output and the in troducti on of "level" output is similar.Remote dista nee (Remote Con trol effect of RF Remote Con trol dista nee)are the major factors as follows:un ched in power tran smissi on power: while dista nee, but great power con sumpti on, easy to gen erate in terfere nee.2. and receiving the receiver sensitivity, receiving, remote distanee in creased sen sitivity to improve, but easy to cause disturba nee maloperati on or abuse.3. antenna, using linear antenna, and parallel, remote distanee, but occupies a large space, in use the antenna spin, pull can in crease the remote dista nee.4. and the higher height: antenna, remote farther, but by objective eon diti ons.5. a nd stop: curre nt use of wireless remote use of UHF band stipulated by the state, the propagation characteristics of approximate linear transmission, light, small, transmitters and receivers diffraction between such as walls are block ing will greatly disco un ted remote dista nee, if is rein forced eon crete walls, due to the absorpti on effect eon ductor, radio waves.Con sideri ng the desig n of hardware volume small to be embedded in the remote eontrol, so we chose 20 foot single-chip chip AT89C2051. Below is the in troducti on of the fun eti on.(1)AT89C2051 internal structure and performaneeAT89C2051 is a byte flash 2K with programmable read-only memory can be erased EEPROM (low voltage, high performanee of eight CMOS microcomputer. It adopts ATMEL of high-density non-volatile storage tech no logy manu facturi ng and in dustrial sta ndard MCS - 51 in structi on set and lead. Through the comb in ati on of sin gle chip in gen eral CPL1 and flash memory, is a strong ATMEL AT89C2051 microcomputer, its application in many embedded control provides a highly flexible and low cost solutions. The compatible with 8051 AT89C2051 is CHMOS micro eontroller, the Flash memory capacity for 2KB. And CHMOS 80C51 process, have two kinds ofleisure and power sav ing operati on mode. The performa nee is as follows.5. CUP, 2KB Flash memory,Working voltage range 2.7-6V, 128KB data storage.The static working way: 0-24MH z, 15 root in put/output line.A programmable serial, 2 a 16-bit timing/counters.There is a slice of in side precisi on simulatio n comparator, 5 the in terrupt sources, 2 priority.Programmable serial UART channel, Directly LED driver output,The internal structure of AT89C2051 is shown in figure 1.Figure 1 AT89C2051 in terior structure(2)AT89C2051 chip pin and functionIn order to adapt to the requireme nt of in tellige nt in strume nt, embedded in the chip foot AT89C2051 simplified configuration, as shown in figure b. The major cha nges to: (1) the lead foot from 20 to 40 wires, (2) in creased a simulated comparator.=Diagram b AT89C2051 foot figure.AT89C2051 pin fun ctio n:1. the VCC: voltage.2. to GND.3. P1 mouth: P1 mouth is an 8-bit two-way I/O port. P1.2 ~ P1.7 mouth pin the internal resista nee provides. P1.0 and P1.1 requireme nts on the external pull-up resistors. P1.0 and P1.1 also separately as piece in side precisi on simulatio n comparator with in put (AIN0) and reversed-phase in put (AIN1). Output buffer can absorb the P1 mouth 20mA current and can directly LED display driver. Whe n P1 mouth pin in to a "1", can make its in put. Whe n the pin P1.2 ~ P1.7 as in put and external dow n, they will be for the in ternal resista nee and flow curre nt (IIL). I n flash P1 mouth duri ng the procedure and program code data recei ving calibrati on.4. P3: the P3.0 ~ P3.5 P3, P3.7 is the in ternal resista nee with seven two-way I / 0 lead. P3.6 for fixed in puts piece in side the comparator output sig nal and it as a gen eral I/O foot and in accessible. P3 mouth buffer can absorb20mA curre nt. When P3 mouth pin in to "1", they are the in ternal resista nceca n push and in put. As in put, and the low exter nal P3 mouth pin pull-up resistors and will use current (IIL) outflow. P3 mouth still used to implement the various functions, such as AT89C2051 shown in table P3 mouth still receive some for flash memory programming and calibration of program con trol sig nals.5. RST: reset in put. RST once, all into high level I/O foot will reset to "1". When the oscillator is running, continuous gives RST pin two machine cycle of high level can finish reset. Each machine cycle to 12 oscillator or clock cycle.6. XTAL1: as the oscillator amplifier in put and in verse internal clock generator in put.7. XTAL2: as the oscillator reversed-phase the amplifier's output.P3 mouth fun cti on as is show n in table 1.addresses, will not meet wrong results. The scope of data storage is OOH(7FH --whe n stack man ipulatio n), also should be no ticed.The in put sig nal is simulated by the origi nal P3.6 foot into the microcontroller, so the original P3.6 foot.Un able to exter nal use. Simulati on comparator can compare two simulation, if the size of the voltage external A D/A converter and its output as A comparator an alog in put, and by simulati ng the comparator ano ther in put voltage to be measured, through the in troduct ion of the software method can realize the A/D con versi on.8. the Flash memory AT89C2051)Provide a 2KB of si ngle-chip AT89C2051 in Flash memory chips, which allows the online program to modify or use special programming program ming.(1) F lash memory en crypti onAT89C2051 SCM has 2 encryption, can programming (P) or programming (U) to obtain different encryption functionality. Encryption functionality table as shown in table 1-1.En crypt a content erased only through chips to erase operatio n.(2) F lash memory program ming and procedures the piece in side chip AT89C2051 Flash memory program ming.Note:1. the cou nters RESET at an EPROM in side the risi ng edge, and 000H RESET to XTAL1 by foot is executed, pulse count.2. pieces of 10ms to erase PROG pulse.3. during the programming P3.1 pulled low RDY/BSY instructions.(3) A T89C2051 SCM in Flash memory chips program ming steps are as follows:1.in the seque nee is the VCC GND pin, add worki ng voltage, XTAL1 pin RESET, recei ving GND pin, other tha n the above time, wait ing for 10ms.2.In P3.2 pin RESET, heighte ning level.3.In P3.3, P3.4, P3.5, P3.7 pin; add model multilevel.4. P1.0 P1.7 -- for the 000H unit add data bytes.5. RESET to in crease the 12V activati on program ming.6. P3.2 jump to a one byte programming or encryption.7. calibration has been programming, data from 12V to RESET logic level "H" and set P3.3 P3.7 -- for the correct level, and can output data in P1 mouth.8. For the n ext addresses) in the unit XTAL1 byte program ming, a pulse, make address coun ter add 1, in mouth add program ming data.9. programmi ng and calibrati on circuit figure c, d.Figure c program ming circuit Figure d calibratio n circuit Expla nati on:(1) P3.1 duri ng programmi ng in structio ns to be low RDY/BSY,(2) single erasing the PROG 10ms need,(3) internal EEPROM address coun ter on the rising edge RESET, and 000H RESET to XTAL1 by foot pulses are executed.Along with the rapid developme nt of scie nee and tech no logy, huma n society has un derg one earth-shak ing cha nges. Make our life more colorful. I n these cha nges, the remote control tech no logy has bee n widely permeates TV aerospace, military, sports and other producti on, all aspects of life. From the broad sense, all equipped with electric locomotive facility or electrical switches, if feel some n ecessary, can con sider to improve existi ng with remote control device, the operation fixed switch to realize the remote operation of the origi nal equipme nt, stop, the variable, etc. Fun cti on.switch, for example, can be used to control the electric control switch the light switch, We design the infrared remote control system to realize the opponent switch quantity control. Infrared remote characteristic is not in flue nce the surro unding en vir onment and does not in terfere with other electric equipment. Due to its cannot penetrate walls, so the room can use com mon household applia nce of remote con trol without mutual in terfere nce, Circuit testi ng is simple, as long as give n circuit conn ecti on, gen erally does not need any commissioning can work, Decoding easily, can undertake multiple remote con trol.红外遥控人的眼睛能看到的可见光按波长从长到短排列，依次为红、橙、黄、绿、青、蓝、紫。

基于--单片机红外遥控系统设计-开题报告书

编号〔学号〕：
本科学生毕业论文〔设计〕手册
题目：基于单片机红外遥控系统设计
Design of Infrared Remote Control Based on SCM
学院名称：电子信息工程学院
专业名称：电子信息科学与技术专业
年级：2021级班
学生：
学号：202109440
指导教师：职称/学历：副教授/博士
成绩评定
评价方式
及比例
指导教师
评价〔60％〕
评阅人
评价〔20％〕
辩论小组
评价〔20％〕
最终
成绩
评定
等级成绩
折算后成绩
“及格〞〔60～69〕；“不及格〞〔60以下〕。

教务处制
6
西华师大学本科学生毕业论文〔设计〕
承诺书
本人承诺：在即将开场的毕业论文〔设计〕过程中，严格遵守学术道德规和学校纪律，在学院和指导教师的安排与指导下，独立完成毕业论文〔设计〕工作，不弄虚作假，不请人代做毕业论文〔设计〕或抄袭别人的成果。

按照“西华师大学本科生毕业论文〔设计〕规定〞的要求，完成毕业论文〔设计〕的撰写、辩论、装订整理等工作。

学生签名：
年月日
西华师大学本科学生毕业论文〔设计〕任务书
西华师大学本科学生毕业论文〔设计〕开题报告
西华师大学本科学生毕业论文〔设计〕指导记录表
注：此表由指导教师填写，可另附纸
西华师大学本科学生毕业设计评价表〔指导教师用〕
西华师大学本科学生毕业设计评价表〔评阅人用〕
西华师大学本科学生毕业论文〔设计〕辩论评分参考标准
西华师大学本科学生毕业论文〔设计〕辩论记录
-
-
- word.zl。

基于51单片机的红外遥控设计-毕业设计论文22(1)

毕业设计（论文）卧室电器用红外遥控器（基于51单片机的红外遥控器设计）Bedroom Appliances With The Infrared Remote Control(Based on 51 single-chip infrared remote control design)完成日期 2012 年 4 月摘要红外遥控是目前家用电器中用得较多的遥控方式。

我们知道，红外线是人的眼睛能看到的可见光按波长从长到短排列，依次为红、橙、黄、绿、青、蓝、紫。

其中红光的波长范围为0.62～0.76μm；紫光的波长范围为0.38～0.46μm。

比紫光波长还短的光叫紫外线，比红光波长还长的光叫红外线。

红外线遥控就是利用波长为0.76～1.5μm之间的近红外线来传送控制信号的。

常用的红外遥控系统一般分发射和接收两个部分。

发射部分的主要元件为红外发光二极管。

很多电器都采用红外遥控,那么红外遥控的工作原理是什么呢?本文将介绍其原理和设计方法。

红外遥控常用的载波频率为38kHz，这是由发射端所使用的455kHz晶振来决定的，在发射端要对晶振进行整数分频，分频系数一般取12，所以455kHz÷12≈37.9 kHz≈38kHz。

也有一些遥控系统采用36kHz、40kHz、56kHz等，一般由发射端晶振的振荡频率来决定。

接收端的输出状态大致可分为脉冲、电平、自锁、互锁、数据五种形式。

“脉冲”输出是当按发射端按键时，接收端对应输出端输出一个“有效脉冲”，宽度一般在100ms左右。

一般情况下，接收端除了几位数据输出外，还应有一位“数据有效”输出端，以便后级适时地来取数据。

这种输出形式一般用于与单片机或微机接口。

除以上输出形式外，还有“锁存”和“暂存”两种形式。

所谓“锁存”输出是指对发射端每次发的信号，接收端对应输出予以“储存”，直至收到新的信号为止；“暂存”输出与上述介绍的“电平”输出类似。

70年代研制出的红外遥控技术，随着大规模集成电路和微处理技术的发展和成熟，红外线遥控系统也迅速发展并得到广泛的应用，特别是在家用电器上的成功应用，给人们的工作、生活和娱乐带来了极大的方便，随着城市居民生活水平的提高，家庭里家用电器的种类和数量逐步增加，与之配套的红外遥控发射器也越来越多关键词：80c51单片机、红外发光二极管、晶振SummaryThe infrared remote control home appliances used more remote way. We know that infrared is the human eye can see the visible light wavelength from long to short arrangement, followed by red, orange, yellow, green, blue, blue, purple. Which the red wavelength range of 0.62 ~ 0.76μm; violet wavelength range of 0.38 ~ 0.46μm. Shorter than the violet wavelengths of light called ultraviolet light than the red wavelength of light called infrared. Infrared remote control is the use of a wavelength of between 0.76 ~ 1.5μm near-infrared to transmit control signals. Infrared remote control systems are generally divided into transmit and receive two parts. The main components of the emission part of the infrared light-emitting diodes.Many electrical appliances are using the infrared remote control, infrared remote control works what is it? This article describes the principle and design method. Infrared remote common carrier frequency of 38kHz, which is determined by the 455kHz crystal used by the transmitter, the transmitter crystal is the integer frequency divider factor generally take 12, so 455kHz ÷12 ≈37.9 kHz ≈38kHz. Remote control system uses 36kHz, 40kHz, 56 kHz, generally determined by the oscillation frequency of the transmitter crystal. The receiving end of the output state can be broadly divided into the pulse level, self-locking, interlocking, data five forms. "Pulse" output is press the transmitter button, the receiver corresponds to the output terminal an "effective pulse", width of about 100ms. Under normal circumstances, the receiver in addition to several data output, there should be a "data valid" output, so that after the class in a timely manner to take the data. The form of this output is generally used to interface with a microcontroller or microprocessor. In addition to the output in the form above, as well as "latch" and "temporary" in two forms. The so-called "latch output signal issued by each transmitter, the receiver corresponds to the output to be" stored "until they receive the new signal; similar to the output of" temporary "output of the above described level.Infrared remote control technology developed in the 1970s, with large-scale integrated circuits and micro-processing technology to develop and mature, infrared remote control system for the rapid development and wide range of applications, especially in the successful application of household appliances, to the people, live and play has brought great convenience, with the improvement of living standards, urban residents, the type and number of household appliances in the family gradually increase, more and more infrared remote control transmitter accompanyingKeywords: 80C51 microcontroller, infrared light-emitting diodes, crystal目录第一章1、引言 (6)2、红外线遥控电路的设计 (6)2、1设计要求与指标： (6)2.1.1、红外线遥控系统组成 (7)2.1.2、红外线遥控系统框图 (7)2.1、电路设计 (7)2.1.1、红外线遥控调光电路介绍 (7)2.1.2、电路组成 (8)2.1.3、电路工作原理 (10)2.1.4、芯片引脚及功能 (10)2.1.5、元器件的功能 (12)2.1.6、其他电路设计方案介绍 (17)3、安装与测试 (20)3.1、红外线遥感发射系统设计 (20)3.2、红外线发射电路设计 (22)3.3、调试与检测安全分析 (27)第二章1、引言 (28)2、原理图设计 (29)2.1、绘制PCB图 (35)3、红外线遥控系统设计 (46)4、系统功能实现方法 (50)5、红外线接收电路 (52)6、软件设计 (53)7、调试结果及分析 (54)8、结论 (55)附录 (55)参考文献 (61)致谢 (62)绪论人的眼睛能看到的可见光按波长从长到短排列，依次为红、橙、黄、绿、青、蓝、紫。

红外遥控系统毕业论文外文文献翻译

红外遥控系统毕业论文外文文献翻译Infrared Remote Control SystemAbstractRed outside data correspondence the technique be currently within the scope of world drive extensive usage of a kind of wireless conjunction technique,drive numerous hardware and software platform support. Red outside the transceiver product have cost low, small scaled turn, the baud rate be quick, point to point SSL, be free from electromagnetism thousand Raos etc.characteristics, can realization information at dissimilarity of the product fast, convenience, safely exchange and transmission, at short distance wireless deliver aspect to own very obvious of advantage.Along with red outside the data deliver a technique more and more mature, the cost descend, red outside the transceiver necessarily will get at the short distance communication realm more extensive of application.The purpose that design this system is transmit customer’s operation information with infrared rays for transmit media, then demodulate original signal with receive circuit. It use coding chip to modulate signal and use decoding chip to demodulate signal. The coding chip is PT2262 and decoding chip is PT2272. Both chips are made in Taiwan. Main work principle is that we provide to input the information for the PT2262 with coding keyboard. The input information was coded by PT2262 and loading to high frequent load wave whose frequent is 38 kHz, then modulate infrared transmit dioxide and radiate space outside when it attian enough power. The receive circuit receive the signal and demodulate original information. The original signal was decoded by PT2272, so as to drive some circuit to accomplishcustomer’s operation demand.Keywords:Infrare dray；Code；Decoding；LM386；Redoutside transceiver1 Introduction1.1 research the background and significanceInfrared Data Communication Technology is the world wide use of a wireless connection technology, by the many hardware and software platforms supported. Is a data through electrical pulses and infrared optical pulse switch between the wireless data transceiver technology.Infrared transceiver products with low cost, small, fast transmission rate, the point-to-point transmission security, not subject to electromagnetic interference and other characteristics that can be achieved between the different products, rapid, convenient and safe exchange and transmission, In short distance wireless transmission have a very distinct advantage.Infrared transceiver products in the portable product of a great role. At present, the world's 150 million piece of equipment used infrared technology in electronic products and industrial equipment. medical equipment and other fields widely used. For example, 95% of the notebook computers on the installation of infrared transceiver interface the majority of the cell phone is also the allocation of infrared transceiver interface. With the exchange of quantitative data, infrared data communications will enable cell phone data transmission more convenient. With infrared data transmission technology matures, perfect, low costs, Infrared Transceiver in short distance communications will be more widely applied.This chapter first describes the infrared transceiver IC design issues to the background and significance. then briefed theinfrared data communications technology features and applications, and infrared transceiver product characteristics, domestic and international situation and development trend of the last under infrared remote transceiver system in practical application to establish a task of design orientation.1.2 Infrared Remote ControlTransceiver SystemInfrared remote control system is divided into single-channel and multi-channel remote control. Only a command signal transmission channel, called single-channel remote control system; with more than two instructions signal transmission channel known as a multi-channel remote control system. Relatively simple single-channel remote control, in general, only a launcher directive Key receivers and only one circuit implementation. While in the receiving circuit to add more stable memory circuits that can be activated commands to launch a number of key, so that the receiver circuit multistable memory circuit repeatedly to change the state, to realize many of the functional control, But such a state of change is the order. If we are to achieve an arbitrary control, resort to the use of multi-channel remote control system. Multi-channel remote control can be realized by the object of arbitrary multi-function remote control. As for the choice of several routes and what control methods, according to the actual situation (such as object, operational requirements and cost accounting, etc.) to decide. General infrared remote transceiver system by infrared remote control transmitter signal coding, infrared remote control signal receivers and decoders (or decoder chip MCU) and the external circuit consisting of three parts. Signal transmitter remote control code used to generate pulses of infrared emission-driven output infrared remote control signal, receiver completion of the remotecontrol signal amplification and detection, plastic and demodulation encoding pulse. Infrared remote control coded pulse is going to obtain a continuous serial binary code, and for most of the infrared transceiver system, This serial code as micro-controller of the remote control input signals from the internal CPU completion of the remote control instruction decoder, on the other infrared remote control transceivers, the designers of electronic products, The internal micro-controller of the remote control decoder directive is not accessible.Therefore, people are using infrared encoder / decoder chip and microcontroller developed various generic infrared remote transceiver system, In various equipment infrared signals between the transceiver.Remote transceiver system generally transmitters and receivers is composed of two parts. Launchers from the general direction keys, coded instructions circuit modulation circuit, driving circuit, firing circuit of several parts. When pressed a key, the directive coding circuit, in the corresponding instructions encoded signal, the encoder signal to the carrier modulation, Driven by the power amplifier circuit after circuit fired from the field after firing instructions coded modulation signals. General receiver by the receiving circuit, the amplifier circuit, demodulation circuits, instruction decoder circuit, driving circuit, circuit implementation of several parts. Receiving Circuit will launch vehicles have been coded modulation signal receiving instructions from, and to enlarge evacuation demodulation circuit. Demodulation circuit will have the coding modulation signal demodulation, namely, reduction of signal coding. The instruction decoder to the encoder signal decoding, Driven by the final circuit to drive the implementation of variousinstructions circuit to control the operation.1.3 infrared remote control transceiver product profiles 1.3.1 infrared remote control transceiver product structure and type Currently infrared transceiver in accordance with the mode of transmission rate and can be divided into four categories : Serial mode, the highest rate of 115.2 Kbps; medium-speed model : the highest rate of 0.567 Mbps and 1.152Mbps; High-speed mode : The maximum rate of 16 Mbps.Also according to the size chip power consumption can be divided into low-power consumption and standard two categories, low-power type normally used 3 V power supply, transmission distance closer to about 0 - 30cm, which is commonly used standard 5V power supply, transmission distance away at least 1mabove.1.3.2 infrared remote control transmitters of the status quo at home and abroadInfrared communication technology in the development stage and there are several infrared communication standards, between different standards for infrared equipment can not infrared communication. To have all the infrared equipment to interoperability in 1993 by more than 20 large manufacturers initiated the establishment of an Infrared Data Association (IRDA) unified the infrared communication standards , which is currently widely used in infrared data communication protocols and standards, also known as the IRDA standard.Since 1993 IRDA since the establishment of the Infrared Data Association members have developed to more than 150. IRDA standards of the industry has been widely recognized and supported. Has been developed with the infraredcommunications equipment have been as many as 100 species. IR module, installed capacity has reached 150 million sets. Although there is also a short distance wireless Bluetooth technology, But in infrared communication technology low cost and broad compatibility advantages, Infrared data communication in the future will still be a very long time inherent short-range wireless data communications fields play an important role.1.3.3 Infrared Transceiver product development trendIn various infrared transceiver products, although the transmission rate, transmission distance and other characteristics, But infrared transceiver products has been towards improving the transmission rate, increase the transmission distance and lower power consumption, expanding launch reception angle of development. In particular, as the technology development and maturity, the means of transmission is moving in the direction of point-to-multipoint. Therefore infrared remote control transceiver products have broader prospects for development.2 Infrared communication of knowledge2.1 infrared ray foundation knowledge2.1.1 infrared outlinedInfrared is actually a kind of electromagnetic wave. From the analysis of various natural component of the electromagnetic wave reflected spectrum is :-ray, x-ray, ultraviolet, visible, infrared, microwave and radio wave. From the viewpoint of form, and they did not seem to, but if the wavelength in descending order, and we will find him all the only visible light spectrum of the entire 0.38 μm - 0.76μm so long little area, and adjacent to the visible light and infrared (including the far infrared, mid-infrared and near infrared foreign) accounts for the spec trum of 0.76 μm -1000μm of a major. Which micron wavelength range also includes UV, visible, near infrared, mid-infrared and far-infrared, microwave.From the above analysis shows that infrared is a very rich spectrum resources, it currently has in production, life, military, medical, and other aspects have been widely used, such as infrared heating, medical infrared, infrared communication, infrared camera, infrared remote control, and so on. Infrared remote control is the many applications of infrared part of the current household appliances widely used in TV remote control, VCR remote control, VCD remote control, high-fidelity audio remote control, are used infra-red remote control, It allows the control of these appliances have become very easy.2.1.2 infrared propertiesInfrared lies between visible light and microwave a wave, it is with certain clinical characteristics of the wave. In the near-infrared, visible light and its adjacent, it is visible in certain characteristics, such as straight-line transmission, reflection, refraction, scattering, diffraction, can be certainobjects and can be absorbed through the lens of their focusing. In the far-infrared region, owing to its neighboring microwave, it has some characteristics of microwave, If a strong penetrating power and can run through some opaque substances. Since in any object, natural profession, regardless of whether its own luminescence (referring to visible light), as long as the temperature is above absolute zero (-273 °C), moment will be kept around to infrared radiation. Only higher temperature of objects strong infrared radiation, low-temperature objects infrared radiation weaker. Therefore infrared feature is the greatest common in nature, it is called thermal radiation calledthermal radiation. Infrared cameras, infrared night market pyroelectric infrared detectors and some other missiles aiming at is the use of this characteristic of infrared work.Infrared and visible light compared to another characteristic of a variety of colors. As the longest wavelength of visible light is a wavelength of the shortest times (780 nm-380 nm), So is called an octave. And infrared wavelength is the longest shortest wavelength of a times, and the longest wavelength infrared is the shortest wavelength of 10 times, that is, 10 octave. Therefore, if visible light can be expressed as seven colors, infrared may performance 70 colors, showing the rich colors. Infrared smoke through the good performance, which is also one of its features.Because not visible to the infrared, it has little effect on the environment. By the wave infrared rays than the long wavelength radio waves, infrared remote control will not affect the nearby radio equipment. Another wavelength of less than 1.5μm near infrared light, transparent atmosphere in the visible light transmission characteristics much better than, because it close to the visible edge of the red light, linear transmission, reflection, refraction and absorption material and the physical characteristics very similar to visible light. Therefore, it can be used with similar visible focusing lens and other optical devices. Because infrared remote control is not as remote as the radio through the barrier to control the object's ability to control, so in the design of household appliances infra-red remote control, wireless remote control as unnecessary, each set (transmitters and receivers) have different frequency or remote coding (Otherwise, wall will control or interference with neighbors household appliances), all similar products in the infrared remote control, The same can control the frequency orcoding, and no remote control signal "drop." This universal infrared remote control provides a great convenience. Infrared to visible light, is very subtle and confidentiality, therefore, the security, Alert and other security devices have been widely used. Infrared remote control is simple in structure and easy, low-cost, anti-interference capability, high reliability are a number of advantages, is a close-up remote control, especially in indoor remote control optimized manner.2.1.3 infrared diode characteristicsInfrared is not visible, people here are not aware of. Electronic technology is used infrared light emitting diode (also known as the IR emission diode) to generate infrared. Infrared remote control transceiver is using near-infrared transmission control instructions 0.76μm wavelength of ~ 1. 5μm. Near-infrared remote control as a light source, because there infrared light emitting diodes and infrared receiving device (photodiode. Transistor and PV) and the luminescence peak wavelength of light by the general 0.8μm ~ 0. 94μm. in the near-infrared band, both of the spectrum is the coincidence to a good match, access to higher transmission efficiency and higher reliability. Commonly used infrared diode, and its shape is similar LED light emitting diodes, Its basic circuit shown in figure 2 -2. The triode plans for the switch, when the base added a driving signal, Transistor saturated conduction infrared LED D is also Wizard Lin k, issued infrared (near infrared about 0.93 μm). D.The pressure drop of about 1.4 V and the current general for 10-20mA. To adapt to the working voltage of the D loop resistance often as a series of infrared diode current limit resistance.When the circuit diagram of the infrared emission controlcorresponding to the controlled device, the control of the distance and D is proportional to the transmitting power. In order to increase the distance of infrared control, infrared diode D should work on the pulse state that work is the lifeblood of current. Because pulse light (optical modulation) the effective transmission distance and pulse is proportional to the peak current, only maximize peak current Ip, will increase the infrared distance. Ip increase is a way to reduce the pulse duty cycle, that is compressed pulse wi dth τ some TV infrared remote control, its infrared luminescence of the pulse duty cycle of about 1/4-1/3; Some electrical products infrared remote control, its duty cycle of 1 / 10. Decreasing pulse duty cycle also enable low-power infrared LED distance of the greatly increased. Common infrared light emitting diodes, power is divided into small power (1 mW - 10mW). Chinese power (20mW - 50mW) and power (50mW - 100mW more) three categories. Use different power infrared LED, the allocation should be driven by the corresponding power control. Figure 2 -2 by the reflected infrared light-emitting diodes to make produce optical modulation, Drivers only need to add the control of a certain frequency pulse voltage.Infrared transmitter and receiver in the way the two kinds of straight, and the second is reflective. Luminescence pointed straight pipe and tube receiver placed in a relatively controlled and fired on the two ends, a certain distance away from the middle; Reflective means luminescent tube and pipe parallel with the receiving peacetime, without always receiving tube light, luminescence only in possession of the infrared light reflected fromencountered, the receiving tube received from the reflected infrared before work.2.2 infrared communication basic tenets2.2.1 infrared communication PrincipleCommunication is the use of infrared wavelength of 900 nm-infrared waves from 1000 to serve as an information carrier, through infrared technology between the two close communication and confidentiality of information transmitted. Infrared communication system structure include : part launcher, channel, the receiver part.Launcher source letter issued after the binary signal from the high-frequency modulated infrared LED sent, receiving device regard the reception of high-frequency signals from the infrared receiver tube after receiving further demodulation photoelectric conversion of the original information of a mass communication lose way. Afterwards the former Information received after receiving part of the drive circuit connected to the expected completion of the various functions. To which the modulation coding style pulse width modulation (by changing the pulse width modulated signal PWM) and pulse modulation time (through change the pulse train interval time between the modulation signal PPM) two.2.2.2 infrared communication system elements(1) Launches : Currently there is a infrared wireless digital communications system sources of information including voice, data, images. Its methods of work for the launch of the receiver can be divided into different layout LOS way (Light-of-Sight , intracardiac way), diffuse (diffuse) mode. LOS way directional, it has good channel characteristics such advantages, but the existence of a "shadow" effect. difficult to achieve roaming function. Roaming means the main features of non-directional, and easy to implementroaming function, but its channel quality is better sometimes LOS way. Transmission of signals required for a few of (the sampling was quantified), the general need for baseband modulation, transmission, modulation, sometimes signal source coding, the above-driven signals from photoelectric converter complete optical signal transmission. Infrared wireless digital communications system and its scope of work-for-fired power distribution, the quality of the communication. While using various methods to improve optical transmitter power, the other using spatial diversity, holographic films and so on so diffuse light for the launch of space optical power evenly distributed.(2) Channel : infrared wireless digital communication channel refers to the transmitters and receivers in the space between. Due to natural light and artificial light sources such as light signals in the context of intervention, and the source - Electrical Equipment, The optical noise and disturbances, infrared wireless digital communications in some occasions, poor quality, At this point needed to channel coding. Infrared wireless communication system, the optical signal reflection, light scattering and background noise and interference effects, Infrared wireless digital channel presence multi-path interference and noise, This is to improve the quality and access for high-speed applications should be addressed. Infrared wireless digital communication channel often used by the major optical components, optical filter, condenser, their role is : plastic, filter, depending on the field transformation, the band division, the lens can be used as launch-ray focusing, the use of optical filters filter out stray light, the use of optical lenses to expand the field of view receiver, able to make use of optical components for the link frequency division multiplexing, etc.. Infrared wireless communication channeloptical noise : the natural noise (sunlight) and anthropogenic interference (fluorescent lighting). can be modulated by the transmission technology such as filters and adding to be addressed.(3) receivers : Channel optical signal from the optical receiver partially photoelectric conversion, In order to remove noise and intersymbol interference and other functions. Infrared wireless digital communications system receiver include optical receiver parts and follow-up sampling, filtering, judgment, quantity, balanced and decoding part. Infrared wireless optical receiver often used amplifier, and called for large-bandwidth, high gain, low noise and low noise, frequency response and channel impulse response matched. To be suppressed by low-frequency noise and human disturbance needs a band-pass filter. To obtain large optical receiver scope and instantaneous field of view, often using spherical optical lens.2.2.3 infrared communications featureWireless communications are a lot of ways, some using infrared communication with the following characteristics : The high frequency, wave length, and fired the energy concentrated space propagation attenuation coefficient can ensure the effective signal transmission;infrared is the invisible li ght, strong confidentiality and use it as an information carrier. device when there is no visual pollution, it does no harm to the human body;dissemination without limitation, and there is no question of frequency interference with radio-wave pattern, not on the spectrum resources to the relevant authorities for the application and registration, easy to implement;has a good point, when the transmission equipment andinfrared receiver ports line up straight, deviation of not more than about 15 degrees when infrared devices running the best effect;through infrared or not bypassed and objects, data transmission, optical path can not be blocked;currently produce and receive infrared signals in the technology is relatively mature, components small size, low cost production of simple, easy to produce and modulation advantages.2.3 infrared communication code based on the knowledgeUsually, infrared remote control transmitters will signal (pulse binary code) modulation at 38 KHz carrier, After buffer amplified sent to the infrared light-emitting diodes, infrared signals into firing away. Pulse binary code in a variety of formats. One of the most commonly used code is PWM (pulse width modulation code) and the PPM code (Pulse Code Modulation). The former said in a pulse width, pulse indicated 0. The latter pulse width, but the width of code-not the same, the codes represent a bit - and the digits represent narrow 0.Remote coding pulse signal (PPM code as an example) are usually guided by the code, the system code, the anti-code system, a feature code, functional anti-code signal components. Guide the code name for the initial code, by the width of 9 ms and the margin width of 4.5 ms to the low-level components (different remote control systems in the low-level high width of a certain distinction), remote coding used to mark the beginning of pulsed signals. System identification code is also called code, which used to indicate the type of remote control system, in order to distinguish other remote-control system, prevent the remote control system malfunction. Functional code is also calledscripts, which represents the corresponding control functions, Receiver of the micro-controller functions under the numerical code to complete the various functions operating. Anti-code system and function codes are anti-system code and the functional code against code Anti-code can be joined to the receiver synchronization transmission process leads to errors. In order to improve performance and reduce interference power consumption, The remote control will be coded pulse frequency of 38 KHz (for the cycle of 26.3 ms) of the carrier signal pulse reshuffle system (PAM), and then sentto the buffer amplified infrared LED, the remote control signal transmitter away.Address code and data codes are composed of different pulse width expressed that the two narrow pulse "0"; 2 pulse width "1"; a narrow pulse width and pulse expressed an "F" is the code addresses "vacant."Is the first part of a group a group of code, each code synchronization between separated. The plan is to enlarge the second half of a group code : a code from 12 AD (the address code plus data code For example, eight address code plus four data code), each with two AD-Pulse's : Pulse said the two "0"; 2 pulse width "1"; a narrow pulse width and pulse expressed an "F" is the code addresses "vacant."Realize fired at each fired at least four groups code, PT2272 only twice in a row to detect the same address code plus data code data will be the code "1" is driven The data should be output to drive margin and VT terminal for synchronous serial.红外遥控系统摘要红外数据通信技术是目前在世界范围内被广泛使用的一种无线连接技术，被众多的硬件和软件平台所支持。

(完整word版)外文翻译——基于单片机的红外防盗报警系统设计

外文原文Based on infrared alarm technology security systems1 the introduction1.1 the research significance of this topic research situation at home and abroad .With the development of society and science and technology unceasing development, people's living standards been improved greatly, and to the private property protection means in the unceasing enhancement, the intelligent facilities for anti-theft puts forward new requirements. This design is to meet the need of modern residential anti-theft designed family electronic alarm system. It in previous devices based on improved greatly, because use the single-chip processor signal, not only can used for single residential area, also can be used in a large-scale residential security systems. It's the job of the performance is good, do not appear to report and misstatement phenomenon, safe and reliable.In our country, the present market condition alarm basically has triggered alarm system pressure switch electron and alarm system and pressure shading triggered alarm system, etc. Various kinds of alarm, but this several common alarm there are some shortcomings. This system USES a human pyroelectric infrared sensor in the human body detector in the flied, passive pyroelectric infrared detectors because of its low cost, easy fabrication, low cost, installation is more convenient, anti-theft performance is stable and high sensitivity, safe and reliable, has attracted broad family characteristics such as popular with the customers. And alarms installation concealment, not easily by rogue found.1.2 infrared alarm technology introduction1.2.1 nature objects of the infrared radiationThe nature of any object, as long as the temperature above absolute zero (273 ℃), constantly outward issued infrared radiation, and travel at the speed of light energy. Object radiate outward infrared radiation of energy and the object of temperature and infrared radiant wavelength. Assuming objects launching infrared radiation of peak wavelength for a few, its temperature for T, the radiation energy equals infrared radiation of peak wavelength gerben and object product temperature T. This product is a constant, namely:The higher the temperature of the objects, emit infrared radiation of the smaller peak wavelength, send out infrared radiation energy is bigger also.1.2.2.pyroelectric effectPassive infrared detector also called pyroelectric infrared detector, its main working principle is pyroelectric effect. Pyroelectric effect means if make some strong dielectric material (such as qin batio3, qin wrong acid lead P (zT), etc.) of thesurface temperature changes, then with the temperature rise or fall, material surface occurs polarization, namely on the surface of the charge will be produced change, and material surface charge lost balance and eventually charge will change withvoltage or current form output.1.2.3 pyroelectric infrared sensor basic structurePyroelectric infrared sensors from sensor detection yuan, interference filters and mosfet verifier three parts. According to the number of detecting yuan to points, pyroelectric infrared sensors have unit, double yuanhe four yuan to wait for a few kinds, for human detection of infrared sensor adopts double yuan or four yuan type structure. According to pyroelectric infrared sensor utility cent, have the following kinds: used for measuring temperature sensor, it's the job of the wavelength of (1-20) nano, Used for flame detection sensor, it's the job of the wavelength for0.435 + / - 0.15 nano, For human detection sensor, it's the job of the wavelength of 7 to 15 feet. Figure 1.2 is a double detection yuan pyroelectric infrared sensor structure schematic drawing. The sensor will two opposite polarity, special1.2.4 pyroelectric infrared detector basic principlePyroelectric infrared sensor by receiving mobile human radiation that certain wavelengths of infrared radiation, can be transformed into and human body movement speed and distance, the direction of low-frequency signals about. When pyroelectric infrared sensor by ir radiation sources of radiation, its internal sensitive materials temperatures will rise, polarization intensity is abate, surface charge reduce, usually will release this part of the charge called pyroelectric charge. Because of pyroelectric charge how many can reflect material changes of temperature, so by pyroelectric charge by circuit transformed into the output voltage can also reflect material changes in temperature, thus detect ir radiation energy changes.2 hardware system design2.1 infrared anti-theft alarm system hardware designBecause this design focuses on family guard against theft, real-time monitoring of a narrower range, so this design by simply using a passive infrared detector is enough.Therefore, infrared intelligent anti-theft alarm system, and the specific design requirements for:(1)completes to high sensitive infrared sensor design, make its can warning of what happened real-time and accurate detection.(2) automatic alarm (automatic dial-up alarm audible and visual alarm). We design the system must have the following function module:1.passive infrared detector,2.sound-light alarm,3.telephone automatic dial-up function;4.continued uninterrupted power supply,According to the system to complete functions, we adopt single chip microcomputer as the core of the system unit, electronic detection, intelligent control and telephone tong2.2 telephone automatic dial-up alarm circuit designIn order to simplify the whole system design process, we do not adopt MT880 chip dialing. Realization process is as follows:First in telephone storage inside put on domestic host cell phone numberor alarm call 110. From MCU pins p2.0 and p2.1 drawn two wiring connect relays, a pick telephone keyboard MianDiJian, another connect telephone keyboard keys, automatic weighing dial because the phone keypad scanning is similar microcontroller keypad scanning, so can make SCM give fitst p2.0 a signal, lets telephone h-f, then give the p2.1 a signal, let relay connected, automatic weighing dial the key a potential, let telephone automatic dial-up, so they could finish the system alarm function.2.3 system working principleThe whole system hardware part mainly includes six parts: MCU module; Infrared detector, Acousto-optic alarm circuit; Telephone automatic dial-up alarm circuit; Power supply circuit, Working state instructions circuit. Its system working principle for: the sensors will be detected signals to lead signal processor processing, microcontroller judgment to P1.0 mouth have pulse falling edge jumping signal immediately transferred to the acousto-optic alarm program, at this moment, the red light buzzer alarm rapid flashes, lasted 30s. In the 30s inside if someone press the switch, then eliminate alarm remove alarm. if this time no one remove alarm, the proof nobody at home in 30s system will automatically triggers telephone finish the whole system of police work project. Later, microcontroller will continue to cycle back ? sentenced2.4 system total diagramIn proteus simulation system, the system circuit by crystals circuit, sound-light alarm circuit composed. Among them, we use connect the dedication of the P1.0 simulated infrared sensors, requirement when switch when pressed by the high jump, level is low, the equivalent of, sensor detects the state of man, the telephone line with P2.0 and P2.1 derivation, here without simulation telephone circuit diagram.Figure 3.53 software system design3.1 control module design programMicrocomputer in the initial plus electric, voltage is not steady state, causing instability, at this time the SCM in commonly after power up to system with a piece of delay. Time-lapse after detecting P1 mouth microcontroller state, detection level signal whether mutations, if is then calls the police processing procedure, including automatic dialup audible and visual alarm procedures, if no changes, ChuXiang level detection continues to P1 mouth state.Figure 4.1 main program flowchart3.2 system development adopted by the programming and commissioning of the platformThis system language using assembly language preparation, so choose wave6000, he has the microcontroller program edit, compile and debugging, etc., and generate hexadecimal. Files, through: machine TOPWIN burning software writeable microcontroller program memory. The simulation software use Proteus, he is from Britain Labcenter electronics company EDA software. The circuit of the simulation is interactive, aiming at the microprocessor application, still can directly based on schematic diagram of the virtual prototype programming, and implementing software source code level of real-time debugging, if have display and output, still can see after the operation of input and output effect.4 system debugging and test4.1 software debuggingAdopt modularization program design thought, fitst debugging subroutines, then gradually superposition debugging, through Proteus simulation software debugging, proof program can realize its function.4.2 system debuggingThrough the circuit of welding, each module function commissioning. I put the hardware that occur errors adjusted, in addition, infrared that piece, because is employing redirected of pyroelectric switch modified, so in must be taping photoconductive resistance to rise, has arrived in the days and nights can alarm function. The total system commissioning, through, error meets the requirement.5 closingThis system uses a pyroelectric infrared sensor, its make simple low cost and installation are more convenient and anti-theft performance is stable and strong anti-jamming capability, high sensitivity, safe and reliable.外文翻译基于红外报警技术的防盗系统1 绪论1.1 本课题的研究现状及研究意义随着社会的不断进步和科学技术不断发展，人们生活水平得到很大的提高，对私有财产的保护手段在不断的增强，对防盗设施的智能化提出了新的要求。

基于单片机控制红外报警的英文翻译

英文翻译Actual problem ability contacting actual solving by the fact that graduation practice, improves theory; Going deep into waiting for relevance hardware knowledge to interface technology understands rise; Have 8279's control words interposition , mechanics , programming principle and PC interface method in hand. Deepen the characteristic and operating principle understanding the successive approximation law modulus converter's , have the ADC0809 interface method and A/D input program design in hand and test method. It is known to all that not caring now is enterprise , a factory , is still a family, having realized an automation mainly , be that a little intellectualized equipment has been used , such has been provided immense going to the lavatory to the user. Thought and operation intellectualized , being to have let treatment element replace person, come to control the outside equipment job.The relay, is that a representative example (modern times automates to have circuital mutual a electron and electricity linkup problem in control system , one side needs to make the electronic circuit pilot signal be able to control the circuital electricity implementation component (electric motor , electromagnet , electric lamp etc.); Electricity being going to be an electronic circuit again on one hand provide fine electricity isolation, to protect the electronic circuit and person's safety, the electron relay just can accomplish this one bridge effect). Should design the aspect being to have embodied a little intelligence. Come to reach the purpose reaching electrical equipment , the electric motor job under the control of changing simulation amounts unceasingly. Be concretely: The chip centering on 8086, 0809, 8255 grades, uses single file to simulate the amounts coming to simulate real physics the amounts , to carry out acquisition by 0809, in the light of different entering and the person size simulating amounts and then the action controlling LED guiding lights , relay , electric motor.Know well that the microcomputer appearing draws Da Liang Shi Yong with human society as well as having entered a new times. The monolithic microcomputer (be called the monolithic machine for short) is all playing very important role in a lot of fields such as being acting as very important role among them , automating in industrial control , data collect and instrument appearance. Have known well that the C51 series monolithic machine is core with 80, system has introduced whose structure principle and applied technique. Main content including monolithic machine ABC, structure and principle, instruction system, assembly language programming, monolithic machine inside parallel application, interruption technology, regular time counting technology, serial communicate by letter technology, system extended technology, A/D and D/A converter interface, monolithic machine apply and develop technology andso on knowledge. With the development of electron technology and computer art, the monolithic machine technology already becomes a distinctive branch of computer art , industry test control waits for a field to have got broad application in civil sum.The monolithic machine is had volume is small , the function is strong , reliability is tall , price hangs down , usage designs that convenient and systematic nimbly to wait for a characteristic. At present, monolithic machine navar is substituting tradition electronic control system with unparalleled speed. Technical ability that the engineers and technicians who studies the monolithic machine and grasps the person designing that the usage technology already becomes the present age college student and a few must prepare for, many enterprise requires that a great quantity is skilled urgently grasping the monolithic machine technology, can develop , apply the engineers and technicians who manages monolithic machine navar high level and defend together. This system has adopt the monolithic machine to realize the multi-path long-range data collect and monitor , this practice has used two machine , the far end monolithic machine has controlled the multi-path data collect implement , the monolithic machine has controlled the far end monolithic machine local place , communication has carried out two machine with RS-232C standard, debugging passing soft hardware, owing system jobs , evidence , system such as treatment , data display , key-in and system warning being able to realize a data is feasibleIn computer extensive use data collect significance is very notable today. Simulations and figures such as the data being collected , being being to refer to the secondary sensor and other wait for measuring equipment is measured the process collecting information voluntarily in the element. The data collect system is certainly definition consumer measurement system coming true nimbly coming soft hardware product combining with computer-based measurement. It is the bridge that the computer and the outside physics world link. Various type signal collect difference difficult to exchange degree is very big. Noise also may bring about a few when reality is collected, inconvenient. Some basal principle needs to pay attention to when data collect, still has more actual problems needing to solve.System adopt capital pair of CPU control , the lead plane uses with being from the machine CPU the monolithic machine. Data being responsible for collecting seven roads from CPU, respond to the order that host CPU dispatches at the same time. Host CPU carries out a data handling , the data display , key-in, system give an alarm, pronunciation broadcasts the voltage value reporting passage. In host CPU and the communication from CPU, adopt the international standard RS232C interface, and use gleam to be short most (need only two. System has realized remote multi-path one kind of the pragmatic type having pronunciation broadcasting newspaper ,high-performance , high intelligence that pronunciation hint data collect system.Industry measurement system often must handle to coming from many signal source signals carrying out digitization coming to realize this handling, but adopt several kinds way. And then simulate multipath multiplex implement (MUX) making one's option in the entering signal coming from 8 simulation sensors, MUX makes a present of the output signal giving signal adjustment an amplifier , the signal adjusts an amplifier that the output signal is made a present of giving a modulus converter (ADC). But IC adopt integrated multipath multiplex implement and ADC at present commonly, also can a purchase the component parting for.System function 1, realizes the scene analog signal producing an implement , is to pass theself-restraint one sine wave generator , make use of sillster to change oscillating frequency,messenger frequency changes in 200 Hz ~ 2 kHz range, 1 v shifting last (200 Hz correspondence exporting 1 ~ 5 corresponding vs direct current pressure again after frequency voltage, 2 kHz are corresponding 5 vs) 2, road data collect implement data collect implement the first roads entering self-restraint 0 V ~ 5 V direct current pressure, 2nd ~ 7 roads import 5 V , 4 V , 3 V , 2 V , 1 V , 0 V direct current pressure coming from the direct-current source respectively (every road imports but not demanding accuracy from mark pressure implement creation). The analog signal changes every road respectively becoming 8 binary digit signals, in classics and/ the circuit varying string, use serial code to send in the transmission circuit.3, the master control implement collects and shows by the fact that the serial transmission circuitis in progress to every road data. Collect way collecting (namely 1 roads , 2 roads including cycling, ... 7 roads , 1 roads, ,) And choose acquisition (let choose a single file) two species way. Demonstrate the can demonstrate address at the same time and corresponding data of part. 4, the lead plane realizes pronunciation handling a hint and broadcasts every passage the voltage function , malfunction give an alarm function.Design that front preparation job develops person after receiving some item missions , need in general carrying out the following job first before the concrete design being in progress: 1, feasibility the purposesurveying feasibility surveying, is to analyse the possibility accomplishing this project. The job carrying out this aspect's, may consult home and abroad in connection with the data , looks at if somebody had carried out the similar job. If having , may analyse others then is the job how to carry out this aspect, what merits and demerits to have , what have to be to be worth drawing lessons; If not needing then doing surveying going a step further ,in priority now Ying Fang whether can realize this link, first, analyse , discuss the possibility coming true from being in progress theoretically, what be demanded if objective condition have (means , the instrument design that ,the fund waits if the environment , tests), and then be tied in wedlock reality , the problem to whether can set up a project to decide again. 2, the system overall plan designs design surveying the queen , being a system overall plan if being able to set up a project , will work next step in the feasibility being in progress.May consult this on one hand detailed , more concrete data on the priority Ying Fang technology degree of difficulty working in that project, now, the function consulting home and abroad the samekind product, brings forward the rational but feasible technology index , compile and compose out design specification , accomplish system overall plan design thereby according to the systematic different part and the function needing to come true.Design plan thin melt 3,ascertains soft hardware function ? ? once the overall plan decides down , job next step is to will owe a project thin melt , needs namely making clear that which part uses hardware to come to be completed , which part uses software to come to be completed. Therefore since the hardware structure and the software scheme may influence each other,aspect thinks from flexibility and General Availability facilitating the circuit structure , cost reduction , cutting down a fault rate , raising system , the function encouraging a software to be able to come true comes to be completed as far as possible from the software; But also should think that the essence replacing a hardware with the software being to reduce system real time nature , increases by handling the price being in progress being's, the software designs that cost , lead time will also increase by and , therefore, the systematic soft, hardware function assignment responds to according to the systematic request and reality but the rational arrangement , unification think. On the basis ascertaining the soft hardware function, designer's job starts the concrete problem dealing with one Yu right away, if the instrument volume and the master plan with the hardware realization scheme , software that the concrete technology index responds to relatively etc.Behind ascertaining personnel division of work , laying on job schedule , regulation the interface parameter, will must think that hardware , the software concre have designed a problem. ? ? is discussing this wants to emphasize an once too the front , here designing a problem concretely , that this several parts work above is essential, otherwise, the entirety may lead to a design plan changes , possibility leads to even a scheme to have no way to realize the dissipation bringing about manpower and material resources to a concrete application system design, To some extent , with regard to, this designs that De Lai talks , should pay attention to twice as much. A monolithic machine application system hardware design includes two most content:The monolithic machine system expansion part designs that first. It expands including that memory expanding and preparing an interface. Thatthe expansion , interface pointing to EPROM , EEPROM and RAM expand the memory expansion is to point to 8255 , 8155 , 8279 and other function component expansion. Two is every function module design. Controlling the function module , the man-machine conversation function module , exchanging the sincere message function module if the signal measures the function module , the signal and so on, demands to deploy ancillary equipment such as corresponding A/D , D/A , keyboard , display , printer according to system function. ascertain the circuital overall plan, needs the demonstration carrying out the detailed technology together. So-called circuital hardware population is designed , is to be to be to realize the electricity company line principle picture owing possessions needed by all fundamental project functions hardware. The first time contact this aspect job design personnel , sometimes be anxious to ask begin to make plate and debug in designing that the overall plan mounts more reluctant flower time , he urges a field excessively. This method not only no appropriate, and sometimes be an effect lose more than gain. Circuital every part is a rapid and intense relevance , is in harmony each other because of the hardware system comes to talk right away,any part of circuit's considers insufficiency , that the city brings the effect, hard to predict to effect hard to predict other part, makes the system entirety structure be destroyed gently then , weight is that population is big fruit the hand doing poorly done work over again , bringing about from this being to be imaginable lead to hardware. Therefore, we hope that the designer is not more stingy than on the overall plan the institute spends time. Judging from time, the good sometimes in initial scheme design stage , one design plan of hardware design most amount of work sometimes is able to have the effect getting twice the result with half the effort. Job next step is only capable to do proceeding as planned and without a hitch very much revise even if needing to do a part once the overall plan ascertains that down,a few being in progress also only here on the basis perfect the entirety working, but being able to not bring about doing poorly done work over again. When the overall plan in the hardware being in progress is designed, the what be related that to concrete circuit may use the job that others carries out in this respect for reference. Sometimes have certain rationality because of the circuit have debuged and testing process others (this also may exactly be experience location although these circuits are often no completely consistent with the circuit providing on the textbook and the handbook). Revise if carrying out a few combining with self design purpose here on the basis,be that one kind is simple and convenient , rapid method of work. The circuit needs self design certainly , a little bit , copying completely is not very possible. ? pi deceives to comfort the emergency quail saying the male plait fertilizer guaranteeing ? requiring the principle working to the person to have more incisive analysis and understand that , knowswhose applicability according to whose job mechanism , ascertains the possibility that the person transplants and the place needing to revise thereby; To the circuit that some critical Buddhist monks understand no completely,need careful analysis, And carry out an experiment before design first, to ascertain this circuital part correctness, job carrying out the ordeal, especially dummy load part , needing the aspect carrying out this more in aspect such as reliability and accuracy. That is makes the hardware design as far as possible rational , is based on experience, systematic wiring design should pay attention to several the following aspect: 1, chooses as far as possible standardizing , the modularized model is circuital, improve the success rate designing that and architectural flexibility; 2, goes down in allowable condition of condition , select and use a function as far as possible strong, high circuit of integration level or chip. Because of adopt this component to may replace some parts of circuit, not only component quantity , connector assembly and mutual company line fall off , messenger system reliability increases by, and cost sometimes is lower than using the circuit that the component realizes muchly to be than.，3, pays attention to choosing the strong , plentiful of marketplace source of goods component of General Availability, problem should pay attention to this aspect especially more to the occasion needing mass production. Whose merit is: Once certain, kind of component has no way to gain , also can use other component to substitute directly or to do slightly to the circuit changing the queen using other component to replace. 4, is in when population structure thinks to hardware system , same need to pay attention to the General Availability problem. To a more complicated system, the designer sometimes hopes with whose modularization, be that the centring bend controls an element , the halving piece importing an interface , exporting the interface , man-machine interface carries out a entire system designing, and then adopt certain edge taking over way that whose combination is become. The way in such circumstances, linking up appears very important right away , may select and use GPI way sometimes, if adopt STD highway structure , PC highway structure , GPIB highway structure etc.Because of the edge to these highways structure takes over the comparison applying at present，Many manufacturer already develops out being suitable to the interface board in these highways structure , exporting board , A/D board if importing board, and so on. Under necessary situation, select and use ready-made module board being the systematic part , be able to shorten lead time greatly , raise working efficiency although cost is partial to height a little bit. Certainly, in some special case and minor systematic occasion,the consumer must design an interface by self , define company line way. Need to pay attention to the interface agreement now, the module designer should observe that interface way one by one once the interface way ascertainsthat down. allowing some leeway , to prepare for future to revise, expanding on the basis satisfying the application system functional requirement. In fact, the circuit designs a success but not doing the condition that any revises is very few's, do poorly done work over again all round if being forced to be in progress in leeway , later stage designing that has not had any left for the first time probably because of to some extent little changing or expansion. Select and use 2764 the above chips for example , when carrying out ROM expansion, to the full, such escalates not only in the future going to the lavatory , the meeting also reduces cost; During the period of the expansion carrying out RAM, go to the lavatory for using system promotion or increasing memory, systematic RAM space should reserve enough location , do not insert a chip well even though designing one RAM socket more than normal,; During the period of the expansion carrying out the IO mouth, also should be given to a certain margin out, such has gone to the lavatory extremely to the passage or controlled member increasing a little measurement for a short time.中文单片机通过毕业设计，提高理论联系实际的解决实际问题的能力；提高对接口技术等相关硬件知识的深入理解；掌握8051的控制字的设置、工作方式、编程原理和微机接口方法。

基于单片机的红外线遥控器设计毕业设计

毕业设计设计课题：基于单片机的红外线遥控器设计摘要随着社会的发展、科技的进步以及人们生活水平的逐步提高，各种方便于生活的遥控系统开始进入了人们的生活。

传统的遥控器采用专用的遥控编码及解码集成电路，这种方法虽然制作简单、容易，但由于功能键数及功能受到特定的限制，只实用于某一专用电器产品的应用，应用范围受到限制。

而采用单片机进行遥控系统的应用设计，具有编程灵活多样、操作码个数可随便设定等优点。

本设计主要应用了AT89C51单片机作为核心，综合应用了单片机中断系统、定时器、计数器等知识，应用红外光的优点。

遥控操作的不同，遥控发射器通过对红外光发射频率的控制来区别不同的操作。

遥控接收器通过对红外光接收频率的识别，判断出控制操作，来完成整个红外遥控发射、接收过程。

其优点硬件电路简单，软件功能完善，性价比较高等特点，具有一定的使用和参考价值。

关键词：单片机，红外遥控，中断，定时，计数，频率AbstractWith the development of our society and the gradual improvement of science and technology, various kinds of help remote control systems have began to enter people’s life. The traditional remote controllers adopt special remote control code and decode integrated circuits, though this kind of method is simply and easily, it is only the practical application ofsome certain special electric equipments because of the counted functional keys is counted and the restricted function, so the range of application is limited. But the remote controllers which adopt the microprocessors have many advantages such as flexible operating and unceremonious manipulative keys.The design has used AT89C2051 microprocessor as core, integratively apply the interruptive system, timer , counter ,etc. mainly to design originally and also take the advantage of the infrared light. The remote control launcher distinguishes different operation through the control on frequency of infrared emission of light. The remote control receiver judges control operation by adopting the discerned frequency of the received infrared light to finish the whole launching and receiving course.Its advantage is that the hardware circuit is simple, the software is with perfect function, have certain use and reference valueKeywords: Microprocessor, Infrared remote control，Interrupt，Timing，Counting，Frequency目录绪论 (7)第一章红外发射部分 (8)1、引言 (8)2、设计要求与指标 (9)3 红外遥感发射系统的设计 (9)4、红外发射电路的设计 (10)5 调试结果及其分析 (15)6、结论 (16)第二章红外接受部分 (16)1、引言 (16)2、设计要求及指标 (17)3、红外遥控系统的设计 (17)4、系统的功能实现方法 (21)5、红外接受电路图 (23)6、软件设计： (24)7、调试结果及分析： (26)8、结论： (26)参考文献 (27)绪论人的眼睛能看到的可见光按波长从长到短排列，依次为红、橙、黄、绿、青、蓝、紫。

基于C51单片机的红外温度测试仪(含外文翻译)

南京工程学院毕业设计说明书(论文)作者：崔明明学号： 202090637 院系：计算机工程学院专业：电子信息科学与技术题目：基于C51单片机的红外温度测试仪指导者：王桂珍/郑胜男高级实验师/助理实验师评阅者：王桂珍/高级实验师2013年5 月南京毕业设计说明书（论文）中文摘要毕业设计说明书（论文）英文摘要目录第一章前言 (1)1.1 课题背景及意义 (1)1.2 红外温度仪的发展现状 (1)1.3 论文的主要研究内容 (2)1.4 本章小结 (3)第二章开发平台与主要语言 (4)2.1 C51单片机简介 (4)2.2 编程语言 (9)2.3 本章小结 (10)第三章红外温度仪的系统设计 (11)3.1 红外温度计的工作原理 (11)3.2 系统规划及流程设计 (12)3.3 硬件模块的设计 (14)3.4 报警模块 (23)3.5 本章小结 (24)第四章红外温度仪的软件设计 (25)4.1 主程序模块的软件设计 (25)4.1 初始化功能模块的软件设计 (26)4.3 红外测温模块的软件设计 (27)4.4 显示模块的软件设计 (28)4.5 报警模块软件设计 (30)4.6 主程序的仿真调试 (30)4.7 本章小结 (32)第五章下载与实现 (33)5.1 硬件下载 (33)5.2 调试中解决的问题 (33)5.3 实现的结果 (35)5.4 红外温度测试仪的改进思路 (36)5.5 本章小结 (37)第六章结束语 (38)6.1 毕业设计的难点与创新 (38)6.2 收获 (38)致谢 (40)参考文献 (41)附录一：英文技术资料翻译 (42)英文原文： (42)中文译文： (47)附录二：程序清单 (52)第一章前言1.1 课题背景及意义随着现代医学和工业发展的需求，在很多情况下需要一个快速而又准确的测温仪器，而传统的温度计显然不能满足要求，比如在车站和机场的人口密度很大的情况下，快速准确测温很重要。

红外遥控电路设计论文英文资料及中文翻

英文资料及中文翻译Radio ReceiverA block diagram for a modern radio receiver is shown in Fig..2-4.The input signals to this radio are amplitude-modulated radio waves. The basic electronic circuits include: antenna ,tuner, mixer, local oscillator ,IF amplifier, audio detector, AF amplifier, loudspeaker, and power supply.Fig.2-4 A Block Diagram For Modern Radio ReceiverAny antenna system capable of radiating electrical energy is also able to abstract energy from a passing radio wave. Since every wave passing the receiving antenna. Induces its own voltage in the antenna conductor, it is necessary that the receiving equipment be capable of separating the desired signal from the unwanted signals that are also inducing voltages in the antenna. This separation is made on the basis of the difference in frequency between transmitting stations and is carried out by the use of resonant circuits, which can be made to discriminate very strongly in favor of a particular frequency. It has already been pointed that, by making antenna circuit resonant to a particular frequency, the energy abstracted from radio waves of that frequency will be much greater than the energy from waves of other frequencies; this alone gives a certain amount of separation between signals. Still greater selective action can be obtained by the use of additional suitably adjusted resonant circuits located somewhere in the receiver in such a way as to reject all but the desired signal. The ability to discriminate between radio waves of different frequencies is called selectivity and the process of adjusting circuits to resonance with the frequency of a desired signal is spoken of as tuning.Although intelligible radio signals have been received from the stations thousands of miles distant, using only the energy abstracted from the radio wave by the receiving antenna much more satisfactory reception can be obtained if the received energy isamplified. This amplification may be applied to the radio-frequency currents before detection, in which case it is called radio-frequency amplification or it may be applied to the rectified currents after detection, in which case it is called audio-frequency amplification. The use of amplification makes possible the satisfactory reception of signals from waves that would otherwise be too weak to give an audible response.The process by which the signal being transmitted is reproduced from the radio-frequency currents present at the receiver is called detection, or sometimes demodulation. Where the intelligence is transmitted by varying the amplitude of the radiated wave, detection is accomplished by rectifying the radio frequency current. The rectified current thus produced varies in accordance with the signal originally modulated on the wave irradiated at the transmitter and so reproduces the desired signal. Thus, when the modulated wave is rectified, the resulting current is seen to have an average value that varies in accordance with the amplitude of the original signal.Receiver circuit are made up a of a number of stages. A stage is a single transistor connected to components which provide operating voltages and currents and also signal voltages and currents. Each stage has its input circuit from which the signal comes in and its output circuit from which the signal, usually amplified, goes out. When one stage follows another, the output circuit of the first feeds the signal to the second. And so the signal is amplified, stage by stage, until it strong enough to operate the loudspeaker.Radio WavesRadio Waves are a member of the electromagnetic of waves. They are energy-carriers which trave l at the speed of light (ν), their frequency(ƒ) and wavelength(λ) being related , as for any wave motion, by the equationν=ƒ* λwhere ν=c=3.0*108 m/s in a vacuum (or air). If λ=300m, then ƒ=ν/λ=3.0*108 /(3.0*10 2)=106Hz=1MHz. The smaller λis, the larger ƒ.Radio Waves can be described either by their frequency or their wavelength. But the former is more fundamental since, unlike λ (and ν ), f does not change when the waves travel form one medium to another.Radio Waves can travel form a transmitting aerial in one or more of three different ways.Surface or ground wave.. This travels along a ground, the curvature of the earth’s surface. Its range is limited mainly by the extent to which energy is absorbed form it by the ground. Poor conductors such as sand absorb more strongly that water, and the higher thefrequency the greater the absorption. The range may be about 1500km at low frequencies (long wave, but much less for v. h. f.).Sky wave. This travels skywards and, if it is below a certain critical frequency (typically 30MHz), is returned to earth by the ionosphere. This consists of layers of air molecules (the D,E and F layer), stretching form about 80km above the earth to 50km, which have become positively charged through the remova l of electrons by the sun’s ultraviolet radiation. On striking the earth the sky wave bounces back to the ionosphere where it is again gradually refracted and returned earthwards as if by 'reflection '. This continues until it is completely attenuated.Space wave. For v. h . f., u. h. f. and microwave signals, only the space wave, giving line-of sight transmission, is effective. A range of up to 150km is possible on earth if the transmitting aerial is on high ground and there are no intervening obstacles such as hills, buildings or trees.OscillatorsElectrical oscillators are widely used in radio and television transmitters and receivers, in signal generators, oscilloscopes and computers, to produce A.C. with waveforms which may be sinusoidal, square, sawtooth etc. and with frequencies from a few hertz up to millions of hertz.Oscillatory circuitWhen a capacitor discharges through an inductor in a circuit of low resistance, an A.C. flows. The circuit is said to oscillate at its natural frequency which, as we will show shortly, equals LC 21, i.e. its resonant frequency f0. Electrical resonance thus occurs when the applied frequency equals the natural frequency as it does in a mechanical system..In Fig,2-2(a) , a charged capacitor C is shown connected across a coil L.C immediately starts to discharge, current flows and a magnetic field is created which induces an e. m. f. in L. This e. m. f. opposes the current . When C is completely discharged the electrical energy originally stored in the electric field between its plates has been transferred to the magnetic field around L.By the time the magnetic field has collapsed, the energy is again stored in C. Once more C starts to discharge but current now flows in the opposite direction, creating a magnetic field of opposite polarity. When this field has decayed, C is again charged with its upper plate positive and the same cycle is repeated.In the absence of resistance in any part of the circuit , an undamped sinusoidal A.C. would be obtained. In practice , energy is gradually dissipated by resistance as heat and a damped oscillation is produced.OscillatorAs the resistance of an LC circuit increases, the oscillation decay more quickly. To obtain undamped oscillations, energy has to be fed into the LC circuit in phase with its natural oscillations to compensate for the energy dissipated in the resistance of the circuit. This can be done with the help of a transistor in actual oscillators.A simple tuned oscillator is shown in Fig.2-2(b). The LC circuit is connected in the collector circuit (as the load) and oscillations start in it when the supply is switched on . The frequency of the oscillations is given by, i.e. then natural frequency of the LC circuit. The transistor merely ensures that energy is fed back at the correct instant from the battery. The current bias for the base of the transistor is obtained through R .AMPLIFIERIntroductionThe term amplifier is very generic. In general, the purpose of an amplifier is to take an input signal and make it stronger (or in more technically correct terms, increase its amplitude). Amplifiers find application in all kinds of electronic devices designed to perform any number of functions. There are many different types of amplifiers, each with a specific purpose in mind. For example, a radio transmitter uses an RF Amplifier (RF stands for Radio Frequency); such an amplifier is designed to amplify a signal so that it may drive an antenna. This article will focus on audio power amplifiers. Audio power amplifiers are those amplifiers which are designed to drive loudspeakers. Specifically, this discussion will focus on audio power amplifiers intended for DJ and sound reinforcement use. Much of the material presented also applies to amplifiers intended for home stereo system use.The purpose of a power amplifier, in very simple terms, is to take a signal from a source device (in a DJ system the signal typically comes from a preamplifier or signal processor) and make it suitable for driving a loudspeaker. Ideally, the ONLY thing different between the input signal and the output signal is the strength of the signal. In mathematical terms, if the input signal is denoted as S, the output of a perfect amplifier is X*S, where Xis a constant (a fixed number). The "*" symbol means? Multiplied by".This being the real world, no amplifier does exactly the ideal, but many do a very good job if they are operated within their advertised power ratings. The output of all amplifiers contain additional signal components that are not present in the input signal; these additional (and unwanted)characteristics may be lumped together and are generally known as distortion. There are many types of distortion; however the two most common types are known as harmonic distortion and inter modulation distortion. In addition to the "garbage" traditionally known as distortion, all amplifiers generate a certain amount of noise (this can be heard as a background "hiss" when no music is playing). More on these later.All power amplifiers have a power rating, the units of power are called watts. The power rating of an amplifier may be stated for various load impedances; the units for load impedance are ohms. The most common load impedances are 8 ohms, 4 ohms, and 2 ohms (if you have an old vacuum tube amplifier the load impedances are more likely to be32 ohms, 16 ohms, 8 ohms, and maybe 4 ohms). The power output of a modern amplifier is usually higher when lower impedance loads (speakers) are used (but as we shall see later this is not necessarily better).In the early days, power amplifiers used devices called vacuum tubes (referred to simply as "tubes" from here on). Tubes are seldom used in amplifiers intended for DJ use (however tube amplifiers have a loyal following with musicians and hi-fi enthusiasts). Modern amplifiers almost always use transistors (instead of tubes); in the late 60's and early 70's, the term "solid state" was used (and often engraved on the front panel as a "buzz word"). The signal path in a tube amplifier undergoes similar processing as the signal in a transistor amp, however the devices and voltages are quite different. Tubes are generally "high voltage low current" devices, where transistors are the opposite ("low voltage high current"). Tube amplifiers are generally not very efficient and tend to generate a lot of heat. One of the biggest differences between a tube amplifier and a transistor amplifier is that an audio output transformer is almost always required in a tube amplifier (this is because the output impedance of a tube circuit is far too high to properly interface directly to a loudspeaker). High quality audio output transformers are difficult to design, and tend to be large, heavy, and expensive. Transistor amplifiers have numerous practical advantages as compared with tube amplifiers: they tend to be more efficient, smaller, more rugged (physically), no audio output transformer is required, and transistors do not require periodic replacement (unless you continually abuse them). Contrary to what many people。

单片机红外遥控外文翻译

毕业设计(论文) 外文翻译专业：电气工程及其自动化姓名：曲雪班级：电自0841学号：10号指导教师: 刘君义职称：教授2012 年5 月外文翻译Infrared Remote And Chips Are Introduced People's eyes can see the visible wavelength from long to short according to the arrangement, in order to red, orange, yellow, green, green, blue, violet. One of the red wavelengths for 0.62 ~ 0.76 mount, Purple is 0.38 wavelength range ~ mount. Purple is shorter than the wavelength of light called ultraviolet ray, red wavelengths of light is longer than that of infrared light. Infrared remote control is to use wavelength for 0.76 ~ 1.5 mount between the near infrared to transfer control signal.Commonly used infrared remote control system of general points transmit and receive two parts. The main component part for the launch of infrared light emitting diode. It is actually a special light emitting diode, due to its internal material differs from ordinary light emitting diode, resulting in its ends on certain voltage, it is a rather infrared light. Use of infrared light emitting diode the infrared wavelengths, for 940nm appearance and ordinary, just the same light emitting diode five different colors. Infrared light emitting diode generally have black and blue, transparent three colors. Judgment of infrared light emitting diode and judgment method, using a millimeter to ordinary diode electric block measure of infrared light emitting diode, reverse resistance. The infrared light emitting diode luminescence efficiency to use special instrument to measure precise, and use only spare conditions to pull away from roughly judgment. Receiving part of infrared receiving tube is a photosensitive diode.In actual application of it receiving diode to reverse bias, it1外文翻译can work normally, i.e., the infrared receiving circuit application in diode is used to reverse, higher sensitivity. Infrared receiving diode usually have two round and rectangular. Due to the power of infrared light emitting diode (or less commonly 100mW), so ir receiving diode received signals is weak, so will increase high-gain ones.the amplifier circuit.In common CX20106A, etc. PC1373H moon infrared receiving special amplifier circuit. In recent years both amateur or formal products, mostly using infrared receiving head finished. The head of infrared receiving product packages generally has two kinds: one kind USES sheet shielding, A kind of plastic packaging. There are three pin, namely the power is (VDD), power negative (GND) and data output (VO or OUT). Infrared receiving head foot arrangement for types varied, manufacturer's instructions. Finished the advantages of infrared receiving head is not in need of sophisticated debugging and shell screen, use rise as a transistor, very convenient. But when used in the infrared receiving attention finished first carrier frequency.Infrared remote common carrier frequency for 38kHz, this is transmitted by using 455kHz Tao Zhen to decide. At the launch of crystals were integer frequency, frequency coefficients, so commonly 12, so 455kHz ÷12 hundredth kHz 38kHz hundredth 379,000. Some remote control system adopts 36kHz, 56kHz, etc. general 40kHz launched by the crystals of oscillation frequency to decide.Infrared remote characteristic is not influence the surrounding environment and does not interfere with other electric equipment.2外文翻译Due to its cannot penetrate walls, so the room can use common household appliance of remote control without mutual interference, Circuit testing is simple, as long as given circuit connection, generally does not need any commissioning can work, Decoding easily, can undertake multiple remote control. Because each manufacturer produces a great deal of infrared remote application-specific integrated circuit, when need press diagram so jip. Therefore, the infrared remote now in household appliances, indoor close (less than 10 meters) in the remote control is widely used.Multiple infrared remote control system of infrared emission control buttons, there are many parts general representative of different control function. When pressed a button, correspondingly in the receiver with different output.Receiving the output state can be roughly divided into pulse, level, self-locking and interlock, data five forms. "The pulse output is according to launch" when the button, the receiver output terminals output corresponding "effective", a pulse width 100ms in general. "Level" refers to the output launch press button, the receiver output corresponding output level ", "effective transmit to loosen the receiver" level "disappears. This "effective pulse" and "effective", may be of high level is low, and may also depend on the output corresponding static state, such as feet for low, static "high" for effective, As for the static, "low" high effective. In most cases, "high" for effective. "Since the lock" refers to launch the output of each time you press the button, a receiver output corresponding change, namely originally a state for high level into3外文翻译a low level, originally for low level into high level. The output power switch and mute as control etc. Sometimes also called the output form for "invert". "The interlock" refers to multiple outputs each output, at the same time only one output. The TV sets of this case is selected, the other is like the light and sound input speed, etc."Data" refers to launch the output some key, use a few output form a binary number, to represent different keystroke.Normally, the receiver except a few data output, but also a "valid" output data, so the timely to collect data. This output form with single-chip microcomputer or are commonly used interface. In addition to the above output form outside, still have a "latch" and "temporary" two forms. The so-called "latch" refers to launch the output signal of each hair, the receiver output corresponding ", "new store until you receive signals. "Temporary" output and the introduction of "level" output is similar.Remote distance (Remote Control effect of RF Remote Control distance) are the major factors as follows:unched in power transmission power: while distance, but great power consumption, easy to generate interference.2.and receiving the receiver sensitivity, receiving, remote distance increased sensitivity to improve, but easy to cause disturbance maloperation or abuse.3.antenna, using linear antenna, and parallel, remote distance, but occupies a large space, in use the antenna spin, pull can increase the remote distance.4.and the higher height: antenna, remote farther, but by4外文翻译objective conditions.5.and stop: current use of wireless remote use of UHF band stipulated by the state, the propagation characteristics of approximate linear transmission, light, small, transmitters and receivers diffraction between such as walls are blocking will greatly discounted remote distance, if is reinforced concrete walls, due to the absorption effect conductor, radio waves.Considering the design of hardware volume small to be embedded in the remote control, so we chose 20 foot single-chip chip AT89C2051. Below is the introduction of the function.（1）AT89C2051 internal structure and performanceAT89C2051 is a byte flash 2K with programmable read-only memory can be erased EEPROM (low voltage, high performance of eight CMOS microcomputer. It adopts ATMEL of high-density non-volatile storage technology manufacturing and industrial standard MCS - 51 instruction set and lead. Through the combination of single chip in general CPL1 and flash memory, is a strong ATMEL AT89C2051 microcomputer, its application in many embedded control provides a highly flexible and low cost solutions. The compatible with 8051 AT89C2051 is CHMOS micro controller, the Flash memory capacity for 2KB. And CHMOS 80C51 process, have two kinds of leisure and power saving operation mode. The performance is as follows.5.CUP, 2KB Flash memory,Working voltage range 2.7-6V, 128KB data storage.The static working way: 0-24MHz, 15 root input/output line.A programmable serial, 2 a 16-bit timing/counters.There is a5外文翻译slice of inside precision simulation comparator, 5 the interrupt sources, 2 priority.Programmable serial UART channel, Directly LED driver output,The internal structure of AT89C2051 is shown in figure 1.Figure 1 AT89C2051 interior structure（2）AT89C2051 chip pin and functionIn order to adapt to the requirement of intelligent instrument, embedded in the chip foot AT89C2051 simplified configuration, as shown in figure b. The major changes to: (1) the lead foot from 20 to 40 wires, (2) increased a simulated comparator.=Diagram b AT89C2051 foot figure.AT89C2051 pin function:1.the VCC: voltage.2. to GND.3.P1 mouth: P1 mouth is an 8-bit two-way I/O port. P1.2 ~ P1.7 mouth pin the internal resistance provides. P1.0 and P1.1 requirements on the external pull-up resistors. P1.0 and P1.1 also separately as piece inside precision simulation comparator with input (AIN0) and reversed-phase input (AIN1). Output buffer can absorb the P1 mouth 20mA current and can directly LED display driver. When P1 mouth pin into a "1", can make its input. When the pin P1.2 ~ P1.7 as input and external down, they will be for the internal resistance and flow current (IIL). In flash P1 mouth during the procedure and program code data receiving calibration.4.P3: the P3.0 ~ P3.5 P3, P3.7 is the internal resistance with seven two-way I / 0 lead. P3.6 for fixed inputs piece inside the comparator output signal and it as a general I/O foot and6外文翻译inaccessible. P3 mouth buffer can absorb 20mA current. When P3 mouth pin into "1", they are the internal resistance can push and input. As input, and the low external P3 mouth pin pull-up resistors and will use current (IIL) outflow. P3 mouth still used to implement the various functions, such as AT89C2051 shown in table P3 mouth still receive some for flash memory programming and calibration of program control signals.5.RST: reset input. RST once, all into high level I/O foot will reset to "1". When the oscillator is running, continuous gives RST pin two machine cycle of high level can finish reset. Each machine cycle to 12 oscillator or clock cycle.6.XTAL1: as the oscillator amplifier input and inverse internal clock generator input.7.XTAL2: as the oscillator reversed-phase the amplifier's output.P3 mouth function as is shown in table 1.7外文翻译8Due to 2KB ROM, so, the space to jump instruction should pay attention to the destination address range (transfer 000H - 7FFH), beyond the range of addresses, will not meet wrong results. The scope of data storage is 00H (7FH -- when stack manipulation), also should be noticed.The input signal is simulated by the original P3.6 foot into the microcontroller, so the original P3.6 foot.Unable to external use. Simulation comparator can compare two simulation, if the size of the voltage external A D/A converter and its output as A comparator analog input, and by simulating the comparator another input voltage to be measured, through the introduction of the software method can realize the A/D conversion.8.the Flash memory AT89C2051)Providea 2KB of single-chip AT89C2051 in Flash memory chips, which allows the online program to modify or use special programming programming.(1)Flash memory encryptionAT89C2051 SCM has 2 encryption, can programming (P) or programming (U) to obtain different encryption functionality. Encryption functionality table as shown in table 1-1.外文翻译Encrypt a content erased only through chips to erase operation.(2)Flash memory programming and procedures，the piece inside chip AT89C2051 Flash memory programming.Note:1.the counters RESET at an EPROM inside the rising edge, and 000H RESET to XTAL1 by foot is executed, pulse count.2.pieces of 10ms to erase PROG pulse.3.during the programming P3.1 pulled low RDY/BSY instructions.(3).A T89C2051 SCM in Flash memory chips programming steps are as follows:1.in the sequence is the VCC GND pin, add working voltage, XTAL1 pin RESET, receiving GND pin, other than the above time, waiting for 10ms.2.In P3.2 pin RESET, heightening level.3.In P3.3, P3.4, P3.5, P3.7 pin; add model multilevel.4.P1.0 P1.7 -- for the 000H unit add data bytes.5.RESET to increase the 12V activation programming.6.P3.2 jump to a one byte programming or encryption.7.calibration has been programming, data from 12V to RESET logic level "H" and set P3.3 P3.7 -- for the correct level, and can output data in P1 mouth.8.For the next addresses) in the unit XTAL1 byte programming, a pulse, make address counter add 1, in mouth add programming data.9.programming and calibration circuit figure c, d.Figure c programming circuit Figure d calibration circuit Explanation:9外文翻译(1) P3.1 during programming instructions to be low RDY/BSY,(2) single erasing the PROG 10ms need,(3) internal EEPROM address counter on the rising edge RESET, and 000H RESET to XTAL1 by foot pulses are executed.Along with the rapid development of science and technology, human society has undergone earth-shaking changes. Make our life more colorful. In these changes, the remote control technology has been widely permeates TV, aerospace, military, sports and other production, all aspects of life. From the broad sense, all equipped with electric locomotive facility or electrical switches, if feel some necessary, can consider to improve existing with remote control device, the operation fixed switch to realize the remote operation of the original equipment, stop, the variable, etc. Function.switch, for example, can be used to control the electric control switch the light switch, We design the infrared remote control system to realize the opponent switch quantity control. Infrared remote characteristic is not influence the surrounding environment and does not interfere with other electric equipment. Due to its cannot penetrate walls, so the room can use common household appliance of remote control without mutual interference, Circuit testing is simple, as long as given circuit connection, generally does not need any commissioning can work, Decoding easily, can undertake multiple remote control.10外文翻译红外遥控人的眼睛能看到的可见光按波长从长到短排列，依次为红、橙、黄、绿、青、蓝、紫。

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毕业设计(论文) 外文翻译专业：电气工程及其自动化姓名：班级：学号：指导教师:职称：2012 年5 月外文翻译Infrared Remote And Chips Are Introduced People's eyes can see the visible wavelength from long to short according to the arrangement, in order to red, orange, yellow, green, green, blue, violet. One of the red wavelengths for 0.62 ~ 0.76 mount, Purple is 0.38 wavelength range ~ mount. Purple is shorter than the wavelength of light called ultraviolet ray, red wavelengths of light is longer than that of infrared light. Infrared remote control is to use wavelength for 0.76 ~ 1.5 mount between the near infrared to transfer control signal.Commonly used infrared remote control system of general points transmit and receive two parts. The main component part for the launch of infrared light emitting diode. It is actually a special light emitting diode, due to its internal material differs from ordinary light emitting diode, resulting in its ends on certain voltage, it is a rather infrared light. Use of infrared light emitting diode the infrared wavelengths, for 940nm appearance and ordinary, just the same light emitting diode five different colors. Infrared light emitting diode generally have black and blue, transparent three colors. Judgment of infrared light emitting diode and judgment method, using a millimeter to ordinary diode electric block measure of infrared light emitting diode, reverse resistance. The infrared light emitting diode luminescence efficiency to use special instrument to measure precise, and use only spare conditions to pull away from roughly judgment. Receiving part of infrared receiving tube is a photosensitive diode.In actual application of it receiving diode to reverse bias, it1外文翻译can work normally, i.e., the infrared receiving circuit application in diode is used to reverse, higher sensitivity. Infrared receiving diode usually have two round and rectangular. Due to the power of infrared light emitting diode (or less commonly 100mW), so ir receiving diode received signals is weak, so will increase high-gain ones.the amplifier circuit.In common CX20106A, etc. PC1373H moon infrared receiving special amplifier circuit. In recent years both amateur or formal products, mostly using infrared receiving head finished. The head of infrared receiving product packages generally has two kinds: one kind USES sheet shielding, A kind of plastic packaging. There are three pin, namely the power is (VDD), power negative (GND) and data output (VO or OUT). Infrared receiving head foot arrangement for types varied, manufacturer's instructions. Finished the advantages of infrared receiving head is not in need of sophisticated debugging and shell screen, use rise as a transistor, very convenient. But when used in the infrared receiving attention finished first carrier frequency.Infrared remote common carrier frequency for 38kHz, this is transmitted by using 455kHz Tao Zhen to decide. At the launch of crystals were integer frequency, frequency coefficients, so commonly 12, so 455kHz ÷12 hundredth kHz 38kHz hundredth 379,000. Some remote control system adopts 36kHz, 56kHz, etc. general 40kHz launched by the crystals of oscillation frequency to decide.Infrared remote characteristic is not influence the surrounding environment and does not interfere with other electric equipment.2外文翻译Due to its cannot penetrate walls, so the room can use common household appliance of remote control without mutual interference, Circuit testing is simple, as long as given circuit connection, generally does not need any commissioning can work, Decoding easily, can undertake multiple remote control. Because each manufacturer produces a great deal of infrared remote application-specific integrated circuit, when need press diagram so jip. Therefore, the infrared remote now in household appliances, indoor close (less than 10 meters) in the remote control is widely used.Multiple infrared remote control system of infrared emission control buttons, there are many parts general representative of different control function. When pressed a button, correspondingly in the receiver with different output.Receiving the output state can be roughly divided into pulse, level, self-locking and interlock, data five forms. "The pulse output is according to launch" when the button, the receiver output terminals output corresponding "effective", a pulse width 100ms in general. "Level" refers to the output launch press button, the receiver output corresponding output level ", "effective transmit to loosen the receiver" level "disappears. This "effective pulse" and "effective", may be of high level is low, and may also depend on the output corresponding static state, such as feet for low, static "high" for effective, As for the static, "low" high effective. In most cases, "high" for effective. "Since the lock" refers to launch the output of each time you press the button, a receiver output corresponding change, namely originally a state for high level into3外文翻译a low level, originally for low level into high level. The output power switch and mute as control etc. Sometimes also called the output form for "invert". "The interlock" refers to multiple outputs each output, at the same time only one output. The TV sets of this case is selected, the other is like the light and sound input speed, etc."Data" refers to launch the output some key, use a few output form a binary number, to represent different keystroke.Normally, the receiver except a few data output, but also a "valid" output data, so the timely to collect data. This output form with single-chip microcomputer or are commonly used interface. In addition to the above output form outside, still have a "latch" and "temporary" two forms. The so-called "latch" refers to launch the output signal of each hair, the receiver output corresponding ", "new store until you receive signals. "Temporary" output and the introduction of "level" output is similar.Remote distance (Remote Control effect of RF Remote Control distance) are the major factors as follows:unched in power transmission power: while distance, but great power consumption, easy to generate interference.2.and receiving the receiver sensitivity, receiving, remote distance increased sensitivity to improve, but easy to cause disturbance maloperation or abuse.3.antenna, using linear antenna, and parallel, remote distance, but occupies a large space, in use the antenna spin, pull can increase the remote distance.4.and the higher height: antenna, remote farther, but by4外文翻译objective conditions.5.and stop: current use of wireless remote use of UHF band stipulated by the state, the propagation characteristics of approximate linear transmission, light, small, transmitters and receivers diffraction between such as walls are blocking will greatly discounted remote distance, if is reinforced concrete walls, due to the absorption effect conductor, radio waves.Considering the design of hardware volume small to be embedded in the remote control, so we chose 20 foot single-chip chip AT89C2051. Below is the introduction of the function.（1）AT89C2051 internal structure and performanceAT89C2051 is a byte flash 2K with programmable read-only memory can be erased EEPROM (low voltage, high performance of eight CMOS microcomputer. It adopts ATMEL of high-density non-volatile storage technology manufacturing and industrial standard MCS - 51 instruction set and lead. Through the combination of single chip in general CPL1 and flash memory, is a strong ATMEL AT89C2051 microcomputer, its application in many embedded control provides a highly flexible and low cost solutions. The compatible with 8051 AT89C2051 is CHMOS micro controller, the Flash memory capacity for 2KB. And CHMOS 80C51 process, have two kinds of leisure and power saving operation mode. The performance is as follows.5.CUP, 2KB Flash memory,Working voltage range 2.7-6V, 128KB data storage.The static working way: 0-24MHz, 15 root input/output line.A programmable serial, 2 a 16-bit timing/counters.There is a5外文翻译slice of inside precision simulation comparator, 5 the interrupt sources, 2 priority.Programmable serial UART channel, Directly LED driver output,The internal structure of AT89C2051 is shown in figure 1.Figure 1 AT89C2051 interior structure（2）AT89C2051 chip pin and functionIn order to adapt to the requirement of intelligent instrument, embedded in the chip foot AT89C2051 simplified configuration, as shown in figure b. The major changes to: (1) the lead foot from 20 to 40 wires, (2) increased a simulated comparator.=Diagram b AT89C2051 foot figure.AT89C2051 pin function:1.the VCC: voltage.2. to GND.3.P1 mouth: P1 mouth is an 8-bit two-way I/O port. P1.2 ~ P1.7 mouth pin the internal resistance provides. P1.0 and P1.1 requirements on the external pull-up resistors. P1.0 and P1.1 also separately as piece inside precision simulation comparator with input (AIN0) and reversed-phase input (AIN1). Output buffer can absorb the P1 mouth 20mA current and can directly LED display driver. When P1 mouth pin into a "1", can make its input. When the pin P1.2 ~ P1.7 as input and external down, they will be for the internal resistance and flow current (IIL). In flash P1 mouth during the procedure and program code data receiving calibration.4.P3: the P3.0 ~ P3.5 P3, P3.7 is the internal resistance with seven two-way I / 0 lead. P3.6 for fixed inputs piece inside the comparator output signal and it as a general I/O foot and6外文翻译inaccessible. P3 mouth buffer can absorb 20mA current. When P3 mouth pin into "1", they are the internal resistance can push and input. As input, and the low external P3 mouth pin pull-up resistors and will use current (IIL) outflow. P3 mouth still used to implement the various functions, such as AT89C2051 shown in table P3 mouth still receive some for flash memory programming and calibration of program control signals.5.RST: reset input. RST once, all into high level I/O foot will reset to "1". When the oscillator is running, continuous gives RST pin two machine cycle of high level can finish reset. Each machine cycle to 12 oscillator or clock cycle.6.XTAL1: as the oscillator amplifier input and inverse internal clock generator input.7.XTAL2: as the oscillator reversed-phase the amplifier's output.P3 mouth function as is shown in table 1.7外文翻译8Due to 2KB ROM, so, the space to jump instruction should pay attention to the destination address range (transfer 000H - 7FFH), beyond the range of addresses, will not meet wrong results. The scope of data storage is 00H (7FH -- when stack manipulation), also should be noticed.The input signal is simulated by the original P3.6 foot into the microcontroller, so the original P3.6 foot.Unable to external use. Simulation comparator can compare two simulation, if the size of the voltage external A D/A converter and its output as A comparator analog input, and by simulating the comparator another input voltage to be measured, through the introduction of the software method can realize the A/D conversion.8.the Flash memory AT89C2051)Providea 2KB of single-chip AT89C2051 in Flash memory chips, which allows the online program to modify or use special programming programming.(1)Flash memory encryptionAT89C2051 SCM has 2 encryption, can programming (P) or programming (U) to obtain different encryption functionality. Encryption functionality table as shown in table 1-1.外文翻译Encrypt a content erased only through chips to erase operation.(2)Flash memory programming and procedures，the piece inside chip AT89C2051 Flash memory programming.Note:1.the counters RESET at an EPROM inside the rising edge, and 000H RESET to XTAL1 by foot is executed, pulse count.2.pieces of 10ms to erase PROG pulse.3.during the programming P3.1 pulled low RDY/BSY instructions.(3).A T89C2051 SCM in Flash memory chips programming steps are as follows:1.in the sequence is the VCC GND pin, add working voltage, XTAL1 pin RESET, receiving GND pin, other than the above time, waiting for 10ms.2.In P3.2 pin RESET, heightening level.3.In P3.3, P3.4, P3.5, P3.7 pin; add model multilevel.4.P1.0 P1.7 -- for the 000H unit add data bytes.5.RESET to increase the 12V activation programming.6.P3.2 jump to a one byte programming or encryption.7.calibration has been programming, data from 12V to RESET logic level "H" and set P3.3 P3.7 -- for the correct level, and can output data in P1 mouth.8.For the next addresses) in the unit XTAL1 byte programming, a pulse, make address counter add 1, in mouth add programming data.9.programming and calibration circuit figure c, d.Figure c programming circuit Figure d calibration circuit Explanation:9外文翻译(1) P3.1 during programming instructions to be low RDY/BSY,(2) single erasing the PROG 10ms need,(3) internal EEPROM address counter on the rising edge RESET, and 000H RESET to XTAL1 by foot pulses are executed.Along with the rapid development of science and technology, human society has undergone earth-shaking changes. Make our life more colorful. In these changes, the remote control technology has been widely permeates TV, aerospace, military, sports and other production, all aspects of life. From the broad sense, all equipped with electric locomotive facility or electrical switches, if feel some necessary, can consider to improve existing with remote control device, the operation fixed switch to realize the remote operation of the original equipment, stop, the variable, etc. Function.switch, for example, can be used to control the electric control switch the light switch, We design the infrared remote control system to realize the opponent switch quantity control. Infrared remote characteristic is not influence the surrounding environment and does not interfere with other electric equipment. Due to its cannot penetrate walls, so the room can use common household appliance of remote control without mutual interference, Circuit testing is simple, as long as given circuit connection, generally does not need any commissioning can work, Decoding easily, can undertake multiple remote control.10外文翻译红外遥控人的眼睛能看到的可见光按波长从长到短排列，依次为红、橙、黄、绿、青、蓝、紫。