以单片机AT89C8051作为温度监控核心部件，采用热电偶温度传感器、运算放大器、A／D转换器等构成温度采集模块，通过对采集到的温度数据值进行比例积分微分运算处理，并采用

RS 485与上位机进行通信，实现一种温度监控系统的设计。-The microcontroller AT89C8051 as a core component temperature monitoring, the use of thermocouple temperature sensors, operational amplifiers, A/D converter constitutes a temperature acquisition module, through the collected temperature data PID value computing, using RS 485 and host computer to communicate, to achieve a temperature monitoring system.