基于NEC协议的遥控系统仿真设计

Simulation Design of Remote Control System Based on NEC Protocol

根据NEC红外遥控协议的特性,采用Proteus提供的红外信号处理模块IRLINK,设计出一种红外遥控仿真系统。对系统硬件和相应的软件进行分析并给出流程图和关键代码,实现对短时按键和长时按键的编码显示和相应功能控制。通过单片机的定时器配合使用,对红外遥控信号的下降沿进行判断,以适应不同的实际遥控发射电路,从而不用区分信号高低电平细节,稍加修改就可适应众多的遥控协议。

According to the characteristics of NEC infrared remote control protocol, IRLINK is used to design a kind of infrared remote control simulation system based on Proteus. Analyze the hardware and software of the system and give the flow chart and key code, realize the encoding display and the corresponding function control of the short key and the long time. Through the MCU timer with the use of infrared remote control signal decreased along the judge, to adapt to different practical remote control transmitter, which do not distinguish between high and low signal level detail, slightly modified can adapt to numerous remote protocol.