温度控制系统的设计

温度控制系统的设计（中文7000字,英文4000字）
 
摘要

研究了基于AT89C51单片机温度控制系统的原理和功能，温度测量单元由单总线数字温度传感器DS18B20构成。该系统可进行温度设定，时间显示和保存监测数据。如果温度超过任意设置的上限和下限值，系统将报警并可以和自动控制的实现，从而达到温度监测智能一定范围内。基于系统的原理，很容易使其他各种非线性控制系统，只要软件设计合理的改变。该系统已被证明是准确的，可靠和满意通过现场实践。
 关键词：单片机；温度；温度

Design of the Temperature Control System Based on AT89C51

ABSTRACT
 
The principle and functions of the temperature control system based on micro controller AT89C51 are studied, and the temperature measurement unit consists of the 1-Wire bus digital temperature sensor DS18B20. The system can be expected to detect the preset temperature, display time and save monitoring data. An alarm will be given by system if the temperature exceeds the upper and lower limit value of the temperature which can be set discretionarily and then automatic control is achieved, thus the temperature is achieved monitoring intelligently within a certain range. Basing on principle of the system, it is easy to make a variety of other non-linear control systems so long as the software design is reasonably changed. The system has been proved to be accurate, reliable and satisfied through field practice.