一种农田无线传感器网络能量控制与动态路由算法.pdf

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1、第24卷第6期传感技术学报Vo1．24No．6CHINESEJOURNALOFSENSORSANDAC3、UATORSJune20112011年6月EnergyControlandDynamicRoutingAlgorithmsforFarmlandWirelessSensorNetworksZHAOChunjiang，，Huarui，ZHULi，，，1、ationalEngineeringResearehCenterrorInformationTechnologyinAgriculture，Bei

2、jing100097；、，Il2．凡lxlboratoriesrh~>rmationchnologyinAgricuhure，Beo'ing100097；l3．sc^。。，“。mrJ几，P刚rfjc5cencenc。log)ofChinⅡ，c^en610054／Abstract：Themonitoringoffamdandenvironmenlinformationinprecisionfarminghasmanyperfomlaneerequirements，suchasreal—time，acc

3、uracy，andsustainability．ThemaininfluencingfactorsontheperformanceofZigBeealgriculturalwirelesssensoritfonnationmonitoringsystemincludetheequipmentenergyconsumptionandthenetworkdelay．BasedontheAODVjralgorithm，anewroutingalgorithmES--AODVjrisproposed，whi

4、chcond3inesenergycontrolanddynamicrou—ring．Bybalaneingthemonitoringequipmentenergyconsumptionandthedatagramshortestpathroutingpolicy，thisalgo—rithmmaximallyexpandstheservicelife—timeofHianitoringnetwork，andatthesametime，guaranteestimelyandeficientdatat

5、ransmissioninthemonitoringnetwork．MeanwhilethesimulationofthenewalgorithmisimplementedinNS2(Net—workSimulatorversion2)．Thesimulationresultsshowthatthenewroutingalgorithmhasthesameperformanceonpack—etdeliveryrateandnetworkdelayasthatoftheoldroutingalgor

6、ithm．Butthenewalgorithmhasgreatimprovementonenergyconsumptionovertheoldalgorithm．TheHeWalgorithmcaneffectivelylengthentheoperationtimeoffarmlandin—formationmonitoringequipmentandexpandthesmvieelife—timeofthemonitoringnetwork，withoutinfluencingthenet-wo

7、rkdelayofthefarmingwirelesssensornetwork．Keywords：wirelesssensornetworks；energycontrol；AODVjr；precisionagricultureEEACC：6150Pdoi：10．3969／j．issn．1004-1699．2011．06．026一种农田无线传感器网络能量控制与动态路由算法术赵春江，，吴华瑞，朱丽r1．国家农业信息化工程技术研究中心，北京100097；、f2．农业部农业信息技术晕点开放实验室，北京10

8、0097；『＼3．电子科技大学自动化丁程学院，成都610054／摘要：精准作业过程中农田生境信息监测具有实时性、准确性及可持续性等性能要求，影响ZigBee农用无线传感器信息监测系统性能的关键因素主要包括设备功耗和网络延时。孑FAODVjr算法的基础上提出了一种能量控制和动态路由相结合的路由算法ES．AODVjr，该算法存监测设备功耗和数据报最短路径路南策略之间建立一种平衡，使得无线传感器网络在保证监测网络中的数据及时有效地传递的同时，最大限度的延长临测网络的生存期。