红外遥控技术1.doc

. 电磁场与电磁波课程论文题目: 红外遥控技术学生姓名胡洋学号 2010114127 院系信息科学与技术学院专业通信工程年级 2010 教务处制成绩. 诚信声明本人郑重声明: 本人所呈交的毕业论文( 设计), 是在导师的指导下独立进行研究所取得的成果。毕业论文( 设计)中凡引用他人已经发表或未发表的成果、数据、观点等,均已明确注明出处。除文中已经注明引用的内容外,不包含任何其他个人或集体已经发表或在网上发表的论文。特此声明。论文作者签名: 日期: 2012 年 12月 04日. 摘要红外遥控器已被广泛使用在各种类型的家电产品上,它的出现给使用电器提供了很多方便。红外遥控系统一般由红外发射装置和红外接收装置两大部分组成。红外发射装置又可由键盘电路、红外编码电路、电源和红外发射电路组成。红外接收设备可由红外接收电路、红外解码芯片、电源和应用电路组成。通常为了使信号能更好的被传输发送,而将基带二进制信号调制为脉冲串信号, 通过红外发射管发射。常用的有通过脉冲宽度来实现信号调制的脉宽调制( PWM )和通过脉冲串之间的时间间隔来实现信号调制的脉时调制( PPM )两种方式。本文主要介绍通用家庭型红外遥控器的红外发射电路原理、红外接收原理, 以及通过脉冲串之间的时间间隔来实现信号调制的脉时调制( PPM )的数据编码格式。关键词: 红外遥控原理;红外遥控电路;遥控编码. Abstract infrared remote control has been widely used in various types of home appliances products, which appears to use electrical appliances provide a lotof convenience. Infrared remote control system generally consists of infrared emission devices and infrared receivers of two ponents. Infrared emission device and the keyboard circuit, infrared coding circuit, power supply and infrared emission position. Infrared receiving equipment by infrared receiving circuit, the infrared decoding chip, power supply and application position. Usually in order to make the signal can better is transmitted to send, and will base band binary signal modulation for burst signal, through infrared tube emission. monly used have through the pulse width to achieve signal modulation of the pulse width modulation (PWM) and through the time interval between the pulse sequence to achieve the signal modulation of the pulse time modulation (PPM) in two ways. This paper mainly introduced the general people infrared remote control of the infrared emission circuit principle, infrared receiving principle, and through the time interval between the pulse sequence to achieve the signal modulation of the pulse time modulation (PPM) data coding format. Keywords : Infrared remote control principle; Infrared remote control circuit; Remote control code . 目录序言……………………………………………………………………………… 1 1 、遥控发射电路原理……………………………………………………… 2