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1、DesignandImplementationofWIFIwirelesssensornetworksAbstractWiththerapiddevelopmentofwirelesscommunicationtechnology,sensortechnology,embeddedtechnology,thewirelesssensornetworktechnologyhasmatured.Itisappliedtovariousfieldsofindustry,agriculture,tran
2、sport,transportation,homeandother,hasbecomeoneofthehotspotsofglobalconcem.ThispaperwasdesignedandimplementedaWIFI-basedwirelesssensornetworks•itcanenjoythematureWIFInetworktechnologyandavarietyofWIFIdevices.Anditcanveryeasilywithexistingnetworksforse
3、amlessconnection.SetupsensornetworksisveryconvenientandreducesthecostintheareaofdeploymentoftheWIFInetwork.Inpowerconsumption•Systemthroughthesleep-wake-upwayofworkinggreatlyreducethepowerconsumptionofthesystem.Therefore,thispaperselectedWIFIasacommu
4、nicationtechnologyforwirelesssensornetworks.Thispaperfirstintroducesthedevelopmentsituationandprospectsofwirelesssensornetworksandseveralshort-rangewirelesscommunicationtechnologiesarecompared.Accordingtothecurrentwirelesssensornetworkfaults,putforwa
5、rdawirelesssensornetworkbasedontheWIFI.BystudyingtheWIFInetworktechnology,designtheoverallstructureofwirelesssensornetworks-GiventhedetailedintroductionofthehardwarestructureofWIFIwirelesssensornetworknodeandwirelessAP.TransplantembeddedLinuxoperatin
6、gsysteminanARM-basedwirelesssensornetworknode,anddesignLinuxUSBdriverinFT245.BytransplantingWIFIwirelessnetworkcarddriver,implementwirelesscommunications.Inthispaper,detailedintroducesthesocketcommunicationtechnology,anddesignWirelesssensornetworkcli
7、entandserversoftwareprogram.Aimingatthetwoperformanceparametersofthewirelesstransmissiondistanceandwirelesstransmissionratedoalotofexperiments,experimentalresultsconcludedthattheentireWIFIwirelesssensornetworkisworking,stableandthetransmissionratemee
8、ttheapplicationrequirementsintherangeof110meters.Keywords：Wirelesssensornetworks•WIFI•ARM•Linux第一章绪论11.1课题研究的背景和意义1L2无线传感器网络的发展与现状11.3本文主要研究工作与结构安排31.4本章总结3第二章无线传感器网络相尖技术介绍42.1短距离无线通信技术的分析42.1丄IrDA技术42.1.2蓝牙技术42.1.3UWB技术52.1.4ZigBee技术52丄.5WIFI技术62.1.
