基于单总线的小环境温度监测系统研究

摘要

In view of the present status of micro-environment temperature monitoring systems, 1 -wire Bus technology and the characteristic of DS18B20 digital transducer are introduced. Combining the requirements of micro-environment temperature monitoring system, the micro-environment temperature monitoring system with the core of AT89C51 SCM based on 1-wire bus are designed. The hardware structure and the software design of the system are given. Application results show that the system has high measuring precision, high anti-interference, high reliability and high ratio between performance and price. It had very important instructional significance in practice.%针对目前小环境温度监测系统的现状,介绍了单总线技术和DS18B20数字式传感器的特点.以AT89C51单片机为核心控制部件,结合小环境温度控制系统的要求,设计了基于单总线技术的小环境温度监测系统,并给出了该监测系统的硬件结构和进行了相应的软件设计.从实际应用结果表明,该系统具有测量精度高、抗干扰性强、可靠性高和性价比好等特点,在工程实际应用中具有重要意义.