应用了AT89C2051单片机作为核心，综合应用了单片机中断系统、定时器、计数器等知识，应用红外光的优点。遥控操作的不同，遥控发射器通过对红外光发射频率的控制来区别不同的操作。遥控接收器通过对红外光接收频率的识别，判断出控制操作，来完成整个红外遥控发射、接收过程。-Application of the AT89C2051 MCU as the core, integrated application of a microcontroller interrupt system, timers, counters and other knowledge, the advantages of using infrared light. Remote operation of the different infrared remote control transmitter on the frequency of light emission control to distinguish between different operations. Infrared remote control receiver on the frequency of light received recognition, determine the control operation, to complete the infrared remote control transmitter and receiver process.