基于DS18B20测温的单片机温度控制系统  

DTemperature Control System Based on DS18B20

作　　者：余瑾[1] 姚燕[1] 

机构地区：[1]北京邮电大学自动化学院,100876

出　　处：《微计算机信息》2009年第8期105-106,112,共3页Control & Automation

摘　　要：介绍了以AT89S52单片机为控制核心的温度控制系统,系统采用数字温度计芯片DS18B20构成测温单元,通过AT89S52的开关量输出控制固态继电器(SSR)的通断,调节烤箱内温度。采用PID控制算法可以明显改善系统的稳态性能以及稳态响应。The temperature control system based on AT89S52 SCM as the controller is introduced in this paper. The temperature measurement unit consists of digital thermometer chip .The output of switching value from AT89S52 controls the switch of solid state relay to regulate the temperature in the oven. An evident improvement on steady-state behavior and response of system is achieved when the PID control algorithm is used.

关 键 词：温度控制 单片机 PID算法 DS18B20 

分 类 号：TP273.1[自动化与计算机技术—检测技术与自动化装置]