基于STM32F103微控制器的短信报警温湿度记录仪的设计

Design of SMS alarm temperature and humidity recorder based on STM32F103 microcontroller

为提高温湿度监测的效率、精度和智能化水平,设计温湿度记录仪。以STM32F103为控制核心,采用SHT75实时采集温湿度数据并通过自主设计的LED中英文点阵屏显示,以24C512作为数据存储器,通过GTM900收发手机短信。基于LabVIEW平台开发的上位机控制软件实现系统设置和数据管理。经测试:记录仪的准确度为温度:±0.5℃,湿度:3%RH,记录容量为21 500组(可扩容),具有自动检测、记录数据并生成原始记录以及GSM短信远程设置,读取实时数据,自动报警等功能。

To make the monitoring of temperature and humidity more efficient,precise and intelligent,the temperature and humidity recorder was designed.The recorder adopted STM32F103 as its control core,SHT75 as the real-time temperature and humidity data collector,and LED dot matrix for the data display.It applied 24C512 for data storage and GTM900 as the message sender and receiver.The control software developed based on the LabVIEW platform realized the functions of system settings and data management,etc.. According to the test,the recorder enjoys the precision of temperature±0.5℃,humidity 3%RH,recording capacity 21 500(expandable),and realizes the functions of automatic data testing and recording,original record generating,remote setting with GSM message,real-time data reading,automatic alarm,and etc..