【正文】 uit to control the operation. infrared remote control transceiver product profiles 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 Kbps。 本科畢業(yè)設(shè)計（論文） 中英文對照翻譯 院（系部） 電氣工程與自動化 專業(yè)名稱 電子信息工程 年級班級 04 級 7班 學(xué)生姓名 指導(dǎo)老師 Infrared Remote Control System Abstract Red 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 electromagism thousand Raos , 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 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 munication 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 acplish customer’s operation demand. Keywords:Infrare dray； Code； Decoding； LM386； Redoutside transceiver 1 Introduction research the background and significance Infrared 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 pointtopoint transmission security, not subject to electromagic 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 world39。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 puters 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 munications will enable cell phone data transmission more convenient. With infrared data transmission technology matures, perfect, low costs, Infrared Transceiver in short distance munications will be more widely applied. This chapter first describes the infrared transceiver IC design issues to the background and significance. then briefed the infrared data munications 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. Infrared Remote ControlTransceiver System Infrared remote control system is divided into singlechannel and multichannel remote control. Only a mand signal transmission channel, called singlechannel remote control system。 mediumspeed model : the highest rate of Mbps and 。 C), moment will be kept around to infrared radiation. Only higher temperature of objects strong infrared radiation, lowtemperature objects infrared radiation weaker. Therefore infrared feature is the greatest mon in nature, it is called thermal radiation called thermal 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 pared to another characteristic of a variety of colors. As the longest wavelength of visible light is a wavelength of the shortest times (780 nm380 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 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 characteris