单片机在温湿度测量系统中的应用

从硬件和软件两个方面介绍以MCS-51单片机为核心的温湿度测量系统的组成,重点给出了硬件和软件系统,该系统由传感器、下位机、接口组成,具有多点测量、数据掉电保护和与PC机通讯等多种功能.用户可通过键盘设置需要的温、湿度值以及报警的上下限值,并通过数码管即时显示.该测量系统具有成本较低、使用简单、工作可靠等特点,具有一定应用前景.

Application of the Single-Chip in Temperature and Humidity Measuring System

The structures of a system based on the MCS-51 single-chip were introduced, the hardware composition andthe sofrware design were described. The measuring system consists of three parts: sensors, slave chip-processor, andinterface program. And the system with the function as multi-sensor, communication with PC, data protection duringpower loss and automatic smartwatch was presented. With the help of keyboard, consumer can set the required value oftemperature and humidity, and also the upper-lower limit of temperature and humidity that will be given an alarm whenthe temperature and humidity over the limit. The temperature and humidity measuring system not only has low cost, butalso has high reliability, and it has good prospect for application.