遥控系统的设计（Design of remote control system）.doc

遥控系统的设计（Design of remote control system） Abstract With the rapid development of science and technology, the rapid spread of information, infrared remote control in peoples lives has become an integral part. This paper mainly introduces the design method of infrared transmitting and receiving circuit using single chip microcomputer AT89C51 and AT89C2051. The transmitting circuit uses a single chip microcomputer 89C2051 to encode the binary signal to be modulated as 40KHz pulse signal and to transmit infrared signals through the infrared transmitting tube. The infrared receiver adopts the integrated infrared receiving head HS0038 to receive the infrared receiving signal. It also amplifies and monitors the signal, and then gets the coding signal of the TTL level and sends it to the mcu. SCM decoding, the realization of different equipment control. The whole circuit has the advantages of low power consumption, simple and reliable operation, flexible performance and high price ratio, and meets the needs of modern life, production and scientific research. Widely used in household appliances, security, and peoples daily life. For example, remote control of TV set, remote control of audio equipment, remote control of electric fan, security alarm, remote control air conditioner and automatic door can be realized by infrared remote control technology. Key words: remote control circuit; infrared emission; infrared receiver; SCM ABSTRACT With the rapid development of technology, the rapid dissemination of information means that infrared control has become an indispensable component in people s life. The article highlighted the design method of transmitting and receiving circuit by infrared control which use single-chip microcomputer AT89C51 and AT89C2051. The emission circuit concocts the binary system signal coding which is prepared to send with the signle-chip microcomputer 89C2051.Then the pulse signal uses infrared emission diode to send the infrared signal. The infrared si