【摘要】 介绍了基于1-Wire总线的分布式温湿度测控系统方案.给出了其硬件组成和关键程序。系统采用上下位机结构.下位机由单片机通过1-Wire总线控制若干温湿度数据采集单元进行数据采集,数据采集单元主要由电压温度多功能芯片DS2438和湿度传感器HiH-3610构成。系统满足了仓储、农业等领域对远距离、多点温湿度数据测量的要求。更多还原

【Abstract】 A kind of distributed temperature and humidity measurement and control system based on 1-Wire bus is introduced, and key program as well as the composing of hardware are given.This system includes the subordinate machine and the principal machine, microcontroller controls many temperature and humidity data acquisiti on unit to gather data through 1-Wire bus, a data acquisition unit mainly consists of humidity sensor HiH-3610 and multifunctional chip DS2438 which can measure temperature and voltage etc. This system can fit the remote measurement and multimetering requireme nts in agriculture,storage.更多还原