基于单片机系统的红外遥控器应用.doc

word完美格式 PAGE 精心整理 学习帮手 遥控器应用 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc263696648 摘　要 PAGEREF _Toc263696648 \h 1 HYPERLINK \l _Toc263696649 Abstract PAGEREF _Toc263696649 \h 2 HYPERLINK \l _Toc263696650 1　红外遥控器信号发射原理简介 PAGEREF _Toc263696650 \h 2 HYPERLINK \l _Toc263696651 2　红外遥控器信号接收芯片外围电路 PAGEREF _Toc263696651 \h 3 HYPERLINK \l _Toc263696652 3 遥控编码 PAGEREF _Toc263696652 \h 4 HYPERLINK \l _Toc263696653 一、编码格式 PAGEREF _Toc263696653 \h 5 HYPERLINK \l _Toc263696654 二、单片机遥控接收电路 PAGEREF _Toc263696654 \h 8 HYPERLINK \l _Toc263696655 4软件解码应用程序 PAGEREF _Toc263696655 \h 8 HYPERLINK \l _Toc263696656 5 结 语 PAGEREF _Toc263696656 \h 9 HYPERLINK \l _Toc263696657 参考文献 PAGEREF _Toc263696657 \h 9 摘　要 介绍红外遥控器与单片机的硬件接口，并从原理出发给出软件解码的方法。通过软件程序对红外遥控器发射的脉冲波形检测得出信号码，从而为软件解码提供依据。红外遥控器由于其体积小、功耗低、功能强、成本低的特点，已经在家电产品设备中广泛应用。现代智能化仪器仪表系统、工业设备中的控制输入也较多地使用红外遥控器。本文给出红外遥控器信号发射原理、红外接收器的连接方式和单片机软件解码应用程序，并提供了一种对未知格式的遥控器信号码检测的应用程序。 ??? 关键词：遥控器；软件解码；单片机；红外线 Abstract Introduction infrared remote control and microcontroller hardware interface and software decoding are presented and from the principle of the method. Through the infrared remote control software program launched in the letter obtained pulse detection number, and thus provide the basis for software decoding. Infrared remote control because of its small size, low power consumption, strong function, and low costs, has been widely used in home appliances equipment. Modern intelligent instrumentation systems, industrial equipment, the control input is greater use of infrared remote control. In this paper, principle of infrared remote control signal transmission, infrared receiver connection and SCM software decoding applications, and provides a remote control for unknown format letter number detection applications. Keywords: remote control; software decoding; SCM; infrared 1　红外遥控器信号发射原理简介 　　通用红外发射器由指令键、指令信号产生电路、调制电路、驱动电路及红外发射器组成。如图1所示。 遥控器所产生的脉冲编码的格式一般为：　 ??? 引导脉冲(头)─识别码(用户码)─键码─键码的反码　　其引导脉冲为宽度是10 ms