基于ZigBee的设施农业环境监测系统的设计与实现

Design and Implementation of ZigBee based Environmental Monitoring System for Facility Agriculture

针对现有设施农业环境监测仪普遍存在的采集参数少、能耗高、电源单一、网络覆盖小、信息难共享等不足,采用传感器阵列技术为智能传感终端配置了光、温、湿、气、酸、像的多参数传感器,实现了环境参数和作物生长形态的多功能综合采集;采用传感器时分复用技术和太阳能、市电、蓄电池三级队列智能电源管理,实现了低功耗和电源多样性;利用ZigBee网络与3G网络、Internet相结合,设计了具有3G和Internet接口的传感器网络网关,实现环境监测的局域采集与广域覆盖功能;采用Java、Flex和MySQL技术构建了设施农业环境监控中心,实现了环境监测数据在互联网上的集中共享.创新点是智能电源的设计和系统的完整实现.对最终系统的测试结果表明:该系统符合现代化和集约化农业生产方式转变的发展需要,对现代物联网技术在农业信息化领域的应用具有参考价值.

The existing environmental monitoring system for facility agriculture has a great deal of deficiencies such as poor data acquisition,high energy consumption,single power supply,limited network coverage and difficult information sharing.Aiming at these aspects,a ZigBee-based environmental monitoring system for facility agriculture is presented.The smart terminal is equipped with multi-parameter sensors for light,temperature,moisture,gas,pH and picture in order to get the whole information of environment and crop status.It takes advantage of the sensor TDM technology and the solar,electricity and battery queue-based smart power system to reduce energy consumption and achieve diversity of power supply.A sensor network gateway with both interfaces of 3G and Internet is designed to achieve the goal of local data collection and wide area coverage.Besides,Java,Flex and MySQL are used to construct an environmental monitoring center for facility agriculture to release information of agriculture by Internet.The comprehensive test results show that the system meets the requirements of the modern and intensive agricultural production,and may be a usful model for internet of things being applied to agricultural information filed.