基于PID控制算法的自动取暖控制器的设计

Design of automatic heating controller based on PID control algorithm

设计了一款自动取暖器控制器,主要应用增量式PID的处理方法,系统以单片机AT89S51作为主控芯片,结合外围的温度数据采集、A/D转换模块、键盘设定、LCD显示等电路模块。它能够实现使自动取暖器可以按照用户的需求设置加热的温度值,当达到设定的温度值时,该控制器自动断电;可以按照用户的需要设定取暖器的启动时间和停止时间;可以在手动控制或者是预先设定的自动控制模式下工作。重点介绍了硬件电路的设计与工作原理以及软件的结构和实现。

This topic is about the design of the automatic heaters controller.The main application is incremental PID approach.The system is consisted of the AT89S51,temperature data acquisition module circuit module,A/D converter,the external keyboard module,LCD time display module.It can realize the automatic heater meet the needs of the user setting the heating temperature; when reaching setting value,the controller can be out of power automatically.According to the needs of the user can set the heater starting time and stopping time.Finally,it can work in manual control or automatic control mode.This paper focuses on the hardware circuit design and its working principle,the structure and implementation of the software.