基于单片机STC12C2052AD的比例遥控系统

基于单片机 STC12C2052AD 的比例遥控系统 刘晓燕 摘要：本设计介绍了采纳带 A/D 转换的单片机 STC12C2052AD 设计实现的比例遥控系统。该系统主要包括发射机电路和接收机电路。其中，发射机电路采纳多个电位器(即可变电阻)分压作为比例控制信号,通过对发射端单片机的软件编程实现对输出的多路经过 A/D 转换后的数字信号进行编码并由串行口送到发射模块发射;接收机电路的任务则是把接收到的信号进行适当放大并从中解调出编码信号,然后通过对接收端单片机的软件程序设计将该信号转换成相应的电动机驱动控制信号,从而完成对模型的方向和速度的控制。关键词：单片机 比例遥控 A/D 转换 The proportional remote control system based on the microcomputer STC12C2052ADLiu Xiao Yan （The Information Science and Technology College of the Southwest Jiao Tong University， Chengdu 610031, Sichuan）Abstract:The proportional remote control system based on the microcomputer STC12C2052AD that with A/D converter introduced in this design 。 The system includes transmitter circuit and receiver circuit. The multi—channel input proportional control signals produced by a number of potentiometer （ variable resistor） were converted into digital signals and encoded by the program in the microcomputer, and then sent to the transmitter module to launch through the serial port； the receiver circuit was mainly responsible for appropriate magnify and demodulate the encoding signals from the transmitter, then convert the signals to corresponding electromotor driver signals， consequently achieve the direction and speed control。 Key words：MCU proportional remote control A/D converter引 言远程控制技术又称为遥控技术，是指实现对被控目标的遥远控制,在工业控制、家用电器、无线电运动以及儿童玩具等领域都有非常广泛的应用。遥控技术可以分为单通道遥控和多通道遥控,或分为开关型遥控和比例型遥控。所谓比例遥控，是指受控模型的动作幅度(或速度）与操纵者扳（转)动发射机操纵杆的动作成比例关系。例如，在遥控机器人模型中...