USB红外遥控设计.doc

USB红外遥控设计
摘要
遥控技术根据控制方式的不同,一般分红外遥控、声控和无线遥控,俗称三遥。而红外线遥控是目前使用广泛的一种通信和遥控手段。由于红外线遥控装置具有体积小、功耗低、功能强、成本低等特点,因而,继彩电、录像机之后,在录音机、音响设备、空调机、电脑以及玩具等其它小型电器装置上也纷纷采用红外线遥控。红外遥控技术的出现,不仅大大提高了劳动生产率,降低了成本,而且减轻了人们的劳动强度,改善了劳动条件。而微机技术的出现,则使现代科学研究得到了质的飞跃,给现代工业测控领域带来了一次新的革命,给人类生活带来了根本的改变。而两者的有机结合,将给人类带来更美好的明天。而本文所研究设计的USB红外遥控是在利用USB在PC机上操作,代替以往的遥控器,从而使红外遥控更为简便,方便操作。
关键词:USB红外遥控、ATmeag8单片机、编码、解码
ABSTRACT
Remote control mode according to the different techniques, the general dividends outside remote control, voice and wireless remote control, commonly known as three remote. The infrared remote control is widely used as a means munication and remote control. As the infrared remote control device has small size, low power consumption, strong function, and low cost, which, after color TVs, VCRs, after the tape recorders, audio equipment, air conditioners, computers and toys and other small electrical devices also have infrared remote control. Infrared Remote Control technologies, not only greatly increased labor productivity, reduce costs, and reduce the people's labor intensity and improve the working conditions. The emergence puter technology, then the modern scientific research has been a qualitative leap in the field to the modern industrial measurement and control has brought a new revolution, to human life brought about fundamental change. bination of both, will lead to a better future for mankind. The research design in this paper the USB infrared remote control is in the use of USB in the PC, operation, instead of the previous remote control, allowing more convenient infrared remote control for easy operation.
Keywords:USB Infrared remote control、ATmeag8 Single-puter、Encoding、 Decoding
前言
随着人们生活水平的提高,人们对生活环境和生活质量的要求也在不断提高。空调、音响、以及一些电动玩具应运而生。而在其中,红外遥控在其中扮演了不可或缺的角色,并且已经在日常家用电器得到了广泛应用,其使用方便,功耗低,抗干扰能力强的优点也越来越在智能仪器系统中受到重视。由于红外线在频谱上居于可见光之外,所以抗干扰性强,具有光波的直线传播特性,不易产生相互间的干扰,是很好的信息传输媒体。信息可以直接对红外光进行调制传输,例如,信息直接调制红外光的强弱进行传输,也可以用红外线产生一定频率的载波,再用信息对载波进调制,接收端再去掉载波,取到信息。从信息的可靠传输来说,后一种方法更好,这就是我们今天看