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1、中國科學(xué)技術(shù)大學(xué)碩士學(xué)位論文基于無線傳感器網(wǎng)絡(luò)的數(shù)據(jù)獲取系統(tǒng)研究姓名:范奎申請學(xué)位級別:碩士專業(yè):模式識別與智能系統(tǒng)指導(dǎo)教師:宋良圖20100501摘要無線傳感器網(wǎng)絡(luò)是由大量具有感知能力、計算能力和通信能力的微小傳感器節(jié)點構(gòu)成的自組織、分布式網(wǎng)絡(luò)系統(tǒng)。通過GPRS終端將無線傳感器網(wǎng)絡(luò)獲取的數(shù)據(jù)傳輸?shù)竭h程的上位機上,從而實現(xiàn)監(jiān)測現(xiàn)場數(shù)據(jù)的遠程獲取。在安徽省農(nóng)業(yè)科技成果轉(zhuǎn)化資金項目一“農(nóng)業(yè)實時信息獲耿與數(shù)字化管理系統(tǒng)中試”(2007GB24910458)的支持下,本文圍繞基于無線傳感器網(wǎng)絡(luò)的遠程數(shù)據(jù)獲取系統(tǒng)的設(shè)計進行研究。本文主要做了以下幾
2、點工作:1.對基于無線傳感器網(wǎng)絡(luò)的數(shù)據(jù)獲取系統(tǒng)進行硬件設(shè)計,詳細設(shè)計了系統(tǒng)的供電模塊,研究了電源的整流、濾波、以及抗干擾技術(shù):設(shè)計了統(tǒng)一傳感器接口模塊,例如:標準電流轉(zhuǎn)電壓模塊,分析了電壓轉(zhuǎn)換精度等問題。2.簡單介紹了Zigbee協(xié)議棧,然后在此協(xié)議棧的基礎(chǔ)上針對項目實際需要進行了的二次丌發(fā),滿足項目需求。在本系統(tǒng)中,利用簇樹型網(wǎng)絡(luò)拓撲有效的擴大了無線網(wǎng)絡(luò)的覆蓋面積,最終試用所丌發(fā)的二次系統(tǒng)軟件,應(yīng)用良好。3.設(shè)計了基于無線傳感器網(wǎng)絡(luò)的數(shù)據(jù)獲取平臺。通過該軟件平臺實現(xiàn)了對部署在監(jiān)測現(xiàn)場的無線傳感器網(wǎng)絡(luò)運行情況的遠程監(jiān)測,命令發(fā)送,數(shù)掘接
3、收、顯示和記錄,并提供了報警功能,將不在設(shè)定門限值范圍內(nèi)的傳感器數(shù)據(jù)作出記錄并給出相應(yīng)的報警提示,方便管理者及時作出相應(yīng)的決策。4.搭建出遠程數(shù)據(jù)獲取平臺,并進行實驗,效果理想。關(guān)鍵詞:無線傳感器網(wǎng)絡(luò)ZigBee低功率電源設(shè)計AbstractTheWSNisaself-organizeddistributednetworksystemwhichiscomposedofamassoftinysensorsnodesthathasthesensationability.Thewirelesssensornetworknodewhichdep
4、loyedinfarmlandtransfersdatatOremotePCthroughGPRSterminal,wecanaccessdataofmonitoringfieldinthedistance.ThisresearchwassupportedbyAgriculturalScienceandTechnologyAchievementsTransformationFundProgramsofAnhuiProvinceundergrant2007GB24910458named“Pilottestonagriculturalrea
5、l-timeinformationacquisitionanddigitalmanagementsystem".Thisarticleisstudyingdesignofremoterdataaccessplatformbasedonwirelesssensornetwork.Theconcreteworksarethefollowing:Wehavedesignedthehardwareofdataaccesssystembasedonwirelesssensornetwork.Itincludespowermodulesandint
6、erfacemodules.WehavestudiedthepowerEMI,filterandcommutatingtechnology.Wealsodesigntheuniforminterfaceofsensers.ForexampletheuniformcurrenttransfervoltagemoduleandanalysetheconverSionaccuracy,etc.WehaveintroducedtheZigbeeprotocolstack.AccordingtOtheactualneedsoftheproject
7、,wehavedonecustomizeddevelopmentbasedontheZigbeeprotocolstacktosuitablefortheprojectneeds.Inthissystem,wehaveusedtheclustertreetopologyoftheWSNnetworktoincreasecoveragearea.Throughrepeatedtesting。thesystermsoftwareapplicatesgood.DesignRemoterDataAccessPlatformbasedonWire
8、lessSensorNetwork.Throughthesoftwareplatform,wecanmonitortheopemtionofwirelesssensornetworksdeployedint