基于DHT11的温湿度监测系统

Monitoring system of temperature and humidity based on DHT11

针对蔬菜大棚中人工测量温湿度劳动强度大、生产效率低的问题,设计了基于DHT11的温湿度监测系统,用于大棚中温湿度的测量。该系统以内置段式LCD显示控制器的Atmega 169p单片机为控制核心,使用TPS63031管理电池供电,以DHT11数字温湿度传感器来进行大棚内温湿度信号的采集,采用RS485通信协议实现单片机与上位机之间的通讯。系统具有操作简单、工作稳定、低功耗、低成本等优点。

Aiming at the problems of labor intensity and low productivity by manpower measuring the temperature and humidity in vegetables greenhouse,monitoring system of temperature and humidity based on DHT11 is designed,for measuring the temperature and humidity in greenhouse. The core of the system is Atmega169 p which is a special single-chip microcomputer with some LCD-control registers. The system uses TPS63031 to manage the battery power and sensor of DHT11 is used to collect the signals of temperature and humidity.Communicating between single-chip microcomputer and computer is set up by RS485 protocol. The system has good features such as simple operation、working stably、low power consumption and low cost.