The Researching Based On Wireless Sensor Network Of Greenhouse Environment Monitoring System

Agricultural environment sensor serve as one of the main techniques in the agricultural development. Adopt wireless sensor networks technology to monitor environment in the greenhouse, solving the problem of traditional trivial wiring,rearrange the seating in the greenhouse when the crop is change and other disadvantage factors,realized to automatic monitoring the environment parameter in the greenhouse based on wireless has wide application.The article based on typical greenhouse environment feature and long-range environmental monitoting control requirement,work out a system design scheme.Based on this scheme,The work including selection for sensor;sensor acquisition node disign;terminal collection node design;and controller design of hardware and software.This article Puts forward and designs the temperature and humidity monitor system of the greenhouse based on ZigBee and embedded Web.And it applys ZigBee wireless communication technology and embedded Web technology in greenhouse system,the overall system is mainly composed of the monito rnode of the ZigBee network and the base station.The monitor rnode of the ZigBee network in the greenhouse, is based on 8bit AVR single- chip. ATmega128L,combined with the external temperature and humidity sensors SHTll and wireless transceiver CC2420.It is responsible for the collection of grain temPerature and humidity data and routing to the base station node.The base station is formed by ARM9 S3C2410 and the ZigBee network synchronizer.ARM9 controls the ZigBee network synchronizer through the serial Port.The embedded Boa server is buildon ARM9,and the datas exchange between the ZigBee network and the embedded Boa server through controlling the ZigBee network synehronizer, and the ZigBee network can effectively access Intenet.So users and managers do not have to install the special elient software, can access the embedded Boa server through the Internet Browser, and is convenient to monitor the temperature and humidity of the different regions in greenhouse. The article,separately from the system design,the monitor rnode design, monitor network researeh and the base station design,details the implementation Proeessof the subjeet.