基于ZigBee无线传感器网络的温室监测系统设计

为了解决温室环境监测系统中遇到拓扑结构固定、节点延展性差等问题,提出了基于ZigBee无线传感器网络的温室监测系统设计与实现方法,构建了基于ZigBee协议的无线监测网络,给出了网络中节点硬件和软件的设计方案,详细论述了ZigBee协调器的组网过程。该系统利用PIC18F4620单片机控制CC2420无线收发器模块收发数据、驱动温湿度传感器（SHT11）,通过I2C总线方式进行数据采集,将采集的温湿度经Zig-Bee网络传输到监测平台。测试结果表明,该系统具有结构简单、节点灵活、功耗低等优点,实现了在无线环境下对温室中温湿度的有效监测。

Design of Greenhouse Monitoring System Based on ZigBee Wireless Sensor Networks

To resolve the problem of fixed topology and node scalability in greenhouse monitoring system,the design and implementation methods of greenhouse environmental monitoring system based on ZigBee wireless sensor networks were proposed and constructed based on the ZigBee protocol. Hardware design and software solution are given. The ZigBee coordinator network processing is discussed in detail. PIC18F4620 microcontroller is used to control CC2420 radio transceiver and drives temperature and humidity sensor （SHT11） through the I2C bus. The temperature and humidity are sent to the monitoring platform by the ZigBee network. Test results show that the system has the advantages of fast networking,flexible nodes and low power consamptian. It realizes greenhouse temperature and humidity monitoring effectively in the wireless environment.