摘要随着单片机的飞速发展,单片机已经很好的融入了现实生活中的很多领域。以单片机作为控制核心已经是现代工业控制的主流,传统遥控器功能单一，一个遥控器只能控制一个目标设备，而单片机和红外线相结合的技术可以实现遥控器的多路控制，更是大大方便了我们的生活。73448

本设计中所设计的无线遥控系统是一个以AT89C52单片机作为控制核心的家用电器遥控器，以红外线作为远程控制的媒介，可以实现同时远程遥控几种常用的家用电器的电源开关功能，还可以远程调节一盏灯的亮暗程度，在本设计中由于无法仿真出对一盏灯的亮暗调节，所以是用远程遥控一台电机转速的方式来代替对一盏灯的亮暗调节，对不同电器进行控制以及远程调节电机的转速都是用键盘控制来实现的，在键盘上设置电机转速档位，不同的档代表不同的转速，对应的也就是一盏灯不同的亮暗程度。经过对设计的不断修改和反复调试，最终设计出了符合课题要求的设计。

该论文有图24幅，参考文献20篇。

毕业论文关键词：AT89C52单片机  红外遥控  键盘控制 

Design of Wireless Remote Control System Based on Single chip microcomputer

Abstract With the rapid development of the single-chip microcomputer(SCM), the SCM has been well integrated in many areas of the real life 。 Taking the SCM as the control core has been the main trend of modern industry control。 The traditional remote control has the sole function that each one can only control one target equipment。 But the skill combining the SCM and infrared ray achieves the goal of multiple control by the remote control, which makes our life much more convenient。

The wireless control system in this design is a remote control for domestic appliance that takes the AT89C52 SCM as the control core and the infrared ray as the media of remote control, it can remote control several power switch of common domestic appliance, it can also remote adjust the brightness of a light。 In this design, we remote control the rotate speed of an electric machine instead of adjusting the brightness of the light because simulating it can’t be realized。 We control different appliances and remote control the rotate speed of the electric machine via the keyboard。 We set rotate speed position on the keyboard。 Each position correspond to one rotate speed so the brightness of the light can be displayed。 The final design that meets the standard of the research is accomplished after repeating modification and debugging。

This paper has 24 figures, 20 references。

Key words：AT89C52 single chip microcomputer  Infrared remote control  Keyboard control

目  录

摘  要 I

Abstract II

目  录 III

图清单 V

1 绪论 1

  1。1 课题的研究背景和意义 1

  1。2 研究现状 1

  1。3 本文主要内容 2

2 红外遥控系统总体设计 3

  2。1红外线遥控原理 3

  2。2单片机的选择 5

  2。3设计思路 7

  2。4设计总方案 9

3系统硬件电路设计 12

  3。1按键控制选择