基于Zigbee無(wú)線傳感網(wǎng)絡(luò)的超聲波車位檢測(cè)系統(tǒng).pdf

1、長(zhǎng)安大學(xué)碩士學(xué)位論文基于Zigbee無(wú)線傳感網(wǎng)絡(luò)的超聲波車位檢測(cè)系統(tǒng)姓名：劉維波申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：智能交通與信息系統(tǒng)工程指導(dǎo)教師：馬榮貴20110531AbstractWiththegrowthofChinesepercapitaGDP，vehicleownershiphasalsoincreasedrapidly，whichcausesthenumberofvehicleismuchmorethanthatofparkingsp

2、acesinmostcitiesManydriverscannotfindaparkingspacequicklyandaccurately，thephenomenonoftrafficcongestionappearsnearparkingentranceSoweneedurgentlyanintelligentparkingsystemwhichmakesuseofadvanceddetectiontechnologyandnetw

3、orktechnologytodetectparkingspaceforparkingguidancesystem，SOastoimprovethecurrenttrafficconditionsofurbanparkingThispaperproposesasolutionforparkingdetectionsystemThissystemdevelopsahigh—precisionultrasonicsensorfordetec

4、tingwhethertheparkingspacesareoccupied，andtemperaturecompensationcircuitisaddedtomodifypropagationvelocityofultrasonicwave，whichensurestheaccuracyofdetectingdataAwirelesssensornetworkissetupbyusingZigbeewirelesscommunica

5、tiontechnologyTheinformationdetectedbysensorsistransmittedtoZigbeecoordinatorwhichtransmittedfromZigbeecoordinatortoPCthroughtheserialport；PCanalyzesthereceiveddataanddisplaycurrentparkingoccupancystatus；finallywecanreal

6、izeguidingdriversparkingautomaticallyMatlab70isusedtoanalyzedatacollectedbysensors，andtheresultshowsthatasaddingtemperaturecompensationcircuit，sensorsofthissystemaremorepreciseThenetworkdatapacketsareanalyzedbyPacketSnif

7、ferthedatatransmittedbyZigbeenetworkisverifiedbywirelessserialcommunicationandtheresultshowsthatthedataiscorrectAlargenumberofdataappearsthatparkingdetectingsensorworksnormallyandZigbeenetworkisreliable，thesystemhashighv