基于GPRS的环境温湿度监测系统设计

摘要

提出了基于GPRS的环境温湿度监测系统的设计方案.针对对温度湿度有要求的环境,通过带有高精度温湿度传感器的数据采集终端采集环境温湿度数据,后经由GPRS无线模块将数据传输到监控室电脑实时显示.采用TCP点对点入网连接方式.主要针对没有网络环境的监控中心,客户无需申请公网IP地址或开通专用APN.只需在监控端接上一个接收模块,即可方便地实现远距离数据传输.整个数据采集终端由MSP430单片机进行控制,不用改动硬件,只通过对软件的修改调整,即可满足不同GPRS入网方式下的通信,拥有良好的扩展性能.实验测试表明,该系统精度高,运行稳定,满足系统设计要求.%A design of environmental temperature and humidity monitoring system based on GPRS is presented in this paper. For the environment that requires temperature and humidity, a data collection terminal with a high-accuracy temperature and humidity sensor is used for getting temperature and humidity parameters.These parameters will be sent to computers in monitoring center through a wireless module. TCP point-to-point connection is adopted in this system, mainly for the monitoring centers that have no network environment. Client is not required to apply for public IP address or APN,this design can realize remote data transmission by just connectting a receive module to the computer. The MCU of the data collection terminal is MSP430. The system can meet different GPRS network access just by modifing software. The experiment results show that this system has high accuracy and good reliability, it meets the designed requirements.