基于无源电子标签UHF的射频识别物流管理系统

27320066()JournalofJinanUniversity(NaturalScience)Vol.27No.3Jun.2006[]2006-01-08[](No.2005B10301017)[](1972-),,,:UHF1,2,2(1.,2.,510632)[],.,,900MHz2.45GHz,.[];;[]O438[]A[]1000-9965(2006)03-0497-07ResearchonUHFPassiveTagsRFIDforSupplyChainManagementSystemZHOUYu2yu1,ZHENGLi2ming2,HUANGJun2kai2(1.DepartmentofIntellectualProperty,2.DepartmentofElectronicEngineering,JinanUniversity,Guangzhou510632,China)[Abstract]TheexcursionmechanismofRFIDandmajorproblemsofpassivetagRFIDwithinsupplychainmanagementsystemareanalyzed.ThecapabilityofRFIDsystemiscalculated.Twokeyproblemsofapplicationareproposedanddiscussed:therequiredpoweroftagandthebackscatteredpowerbacktothereader.The900MHzand2.45GHzareindicatedtobecuitableforthesupplychainmanagementsystem.[Keywords]tag;RFID;supplychainmanagementsystem(RFID),,.,2080,RFID,[1,2].©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.,(20042005)10.,RFID,.RFID,.,RFID[3,4].RFID,.,,.RFID.1RFID,RFID3,1.1RFIDRFID,RFID...,,;;.2RFIDRFID,RFID,,.RFID,.:.2.1RFID,,RFID.,ISO/IEC1800EPCGlobal(UbiquitousID)3RFID.3,3.,RFID,,,,(EPC),894()2006©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.,ISO.,,,.,RFID,ISO/IEC1800.,,,3RFID.,2005,.2.2,RFID.(1)RFID.,RFID900MHz2.45GHz5.8GHz3,3,.RFID,,,,;,,,,..,,,.,:S=PRGRT4R2(1)PR,GRT,PRGRT,R.:PE=S(2),0Emax=24GE,,GE.,,0,.,:PE=EmaxS=2GRTGEPR(4)2R2(3)9943,:UHF©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.,,:PB=RmaxSR=24GRR2GRTGEPR(4)3R4(4)GRR.:900MHz2.45GHz5.8GHz,Matlab:(3)PER2(:PRGRT36dBm(dBm,4W),GE0dBi(dBi)),,PE;,PE.(3)PEPRGRT3(:R5m,GE0dBi),PEPRGRT,,PE.2PER4PEPRGRT3PBR(4),PBR,4(:PRGRT36dBm(4W),0dBi,0dBi).,PB;R,PB.(4),PBPRGRT5(:R5m,0dBi,0dBi).,PB,PRGRT,PB.,,RFID,(3)(4).:,PE,.RFID.005()2006©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2).RFID,.,,.,,.,,,,.kb/s,.,,,,:[5]ALOHA[6],RFID,RFID.,,,IC,,.,,.62.3RFID,,.,,,RFID,.IC,;IC.IC,IC,6.,IC5[7].,IC.,IC,,.IC,IC,,1053,:UHF©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.,.,,IC.IC(:EPC).,,.3RFIDRFID,,:,,,.,.IC,16.7W,RFID[8].20W,.E50%(40W),25%,()-70dBm(),4W(),.1.1/HzR=3mR=5mPE/WPB/dBmPE/WPB/dBm900M312-52112-612.45G42-7015-785.8G8-843-93PE=40W,900MHz2.45GHz5.8GHz8138m3.07m1.31m.,,900MHz2.45GHz3m,40W,-70dBm,5.8GHz.900MHz5m,.,RFID900MHz2.45GHz.,,.UHF,,,.UHF,.,900MHz2.45GHz,.,RFID,.205()2006©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[][1],,,.(RFID)[M].:,2004.[2]FINKENZELLERK.(RFID)IC(2)[M]..:,2001.[3]ROBGlidden,CAMERONBockorick.DesignofUltr-Low-CostUHFRFIDtagsforsupplychainapplica2tions[J].IEEECommuMag,2004,42(8):140-151.[4]JOHNWalko.ThenoisesurroundingRFIDtechnologyisgettinglouderbytheminute[J].IEEECommuEng,2004,2(1):10-13.[5],,,.[J].,1999,9:702-705.[6],.ALOHARFID[J].,2003,6:173-176.[7]ULRICHKaiser,WOLFGANGSteinhagen.ALow-PowertransponderICforHigh-Performanceidentificationsystems[J].IEEECommuJourlofSolid-StateCircuits,1995,30(3):306-310.[8]UDOKarthaus,MARTINFischer.FullyintegratedpassiveUHFRFIDtransponderICwith16.7uWminimumRFinputpower[J].IEEEJourlofSolid-StateCircuits,2003,38(10):1602-1608.[:]3053,:UHF©1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.