基于AT89S52单片机的PID恒温控制系统的开发和实验研究  

Development and Experimental Study of PID Temperature Control System Based on AT89S52

作　　者：陈铁强[1] 李克天[1] 刘吉安[1] 印波[1] 蔡召虎[1] 

机构地区：[1]广东工业大学机电工程学院,广东广州510075

出　　处：《机电工程技术》2009年第9期52-54,125,共4页Mechanical & Electrical Engineering Technology

基　　金：广东省科技计划项目(2006A10401003;2007A010301002);广州市科技计划项目(2006Z3-D9071)

摘　　要：设计开发了基于AT89S52单片机的温度控制系统。采用新型数字器件MAX6675和K型热电偶构成温度采集电路;应用PID算法来调节温度,采用正交实验法对PID控制参数进行整定;并且开发了PC机监控软件,通过串口通信实时监控系统的状态。该系统经过实验验证,取得了较为满意的控制效果。Based on AT89S52 Single Chip Microcomputer,a temperature control system was discussed.The temperature acquisition circuit was made up of K type thermocouple and MAX6675 which is a new type integrated digital device.The PID Algorithm was applied in the system to regulate temperature.The parameters of PID controller were tuned by using orthogonal test.Accordingly,a real-time supervisory control software was developed on the computer in order to supervise the temperature control system by serial communication.The experiment result showed that this system could achieve quite good control performance.

关 键 词：单片机 温度控制系统 MAX6675 PID控制 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]