基于DS18B20的分布式温度传感系统

Based on DS18B20 Distributed temperature sensing system

提出了基于DS18B20的分布式温度传感系统,其原理通过单总线协议从各个节点读取温度信息,设计了相应的实验装置及硬件电路;该系统核心器件DS18B20的工作原理是采用一线制的串行总线通讯方式,针对数据的整数部分和小数部分分别给出了相应的处理方法;最后分析了系统的软件结构,给出了系统的测试结果,说明了系统的实用性.

Distributed temperature sensing system is proposed and its principle is explained based on DS18B20. The experimental cortfiguration and the circuital structure are that information of the temperature are acquired from the node. The operation and principle of the essential device DS18B20 are that a gleam of the manner is adopted in the serial communication and the methods for integral data process and decimal data process are described. The soft structure of the system is analyzed. Finally the experimental results are obtained , which shows that the proposed system is very practical.