ZigBee无线通信技术在田间滴灌控制系统中的应用

摘要

近年来,滴灌技术得到大面积的推广应用.现有田间滴灌控制系统通常采用有线网络、433 MHz无线星型网络和GSM/GPRS通信技术.这些存在着可靠性低、施工维护难度大和成本高等劣势,不适合田间大规模部署.在这种背景下,设计一种基于ZigBee无线通信技术组建的网络,应用于田间控制系统.该网络具有自组织的特点和网状网络拓扑结构,能够弥补有线网络和433 MHz无线星型网络的缺点,并且它工作在ISM频段,不会产生后期通信费用的问题.通过组网测试,证实采用ZigBee网络对于滴灌系统是一种比较理想的选择,在滴灌控制系统中具有实用价值.%In recent years, drip irrigation technology has been wildly used.The existing communication technologies which are usually used in the control system of drip irrigation in field are wired network, 433 MHz wireless star network and GSM/GPRS, there are disadvantages in reliability, construction and maintenance difficulties, and the cost.They are not suitable for large-scale deployment.In this case, a network is designsed by using ZigBee wireless communication technology, it will be used in the control system of drip irrigation in field.The characteristics of self-organization and mesh network topology of ZigBee can make up the shortcomings of wired network and 433 HMz wireless star network, and it works at ISM band, there are not later communication costs.Through network test, the results confirmed that the ZigBee network is an ideal solution to this irrigation system, and the irrigation control system has great practical application value.