超高頻RFID讀取防碰撞算法研究與實現(xiàn).pdf

1、電子科技大學(xué)碩士學(xué)位論文超高頻RFID讀取防碰撞算法研究與實現(xiàn)姓名：楊坤申請學(xué)位級別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：冷甦鵬20100501ABSTRACTABSTRACTRadioFrequencyIdentification(RFID)isanon—contactautomaticidentificationtechnologyBecauseoftheirlongidentificationdistance，strongpenet

2、ratingability，multi—objectrecognition，thetechnologyisnowwidelyusedinautomation，transportation，controlandmanagement，productservicesandceaificatesAntiforgeyareasItisoneofcurrentresearchhottechnologiesof“IntemetofThings”Whe

3、nmorethanonetagsenddataatthesametimeinthescopeofthereader，collisionswillhappenTheresultswillleadtotransmissionfailureTherefore，anticollisionalgorithmisneededtoavoidorreducethecollision，therebyenhancingtagidentificationpe

4、rformanceofRFIDSystemAtpresent，theresearchofanticollisionalgorithminRFIDisfocusedontheAlohaslotanti—collisionalgorithmandbinarytreesearchanticollisionalgorithmHowever，alohaslotsanti—collisionalgorithmexistthephenomenonth

5、atalabelcanneverbeidentifiedBinarysearchalgorithmCanavoidthisproblem，butwhentherelativelylargenumberoftagsareneededtoidentify，thereaderneedsalongidentificationcycleThustheRFIDreaderefficiencyisaffectedThispapercanbedivid

6、edintotwopartsThefirstpartismainlyappliedtheIntelR1000UHFreadertoconductnetworktest。ThereaderSinherentalgorithmisbasedonISO／IEC180006CstandardalgorithmsButitnotfullyrealizesthestandardalgorithmThepaperanalyzethedefectsin

7、theinherentalgorithmBythesimulationofstandardalgorithmbasedonns2，theimprovementofinherentalgorithmsisproposedBasedontheISO／IEC18000—6CUHFRFIDstandardalgorithms，ThispaperproposedanewSlotbasedPartialCompetitive(SPC)anticol

8、lisionAlgorithm，whichintroducesdynamicbinarytreesearchtechnologyintothecompetitivecollisionavoidancemechanismforthefirsttimeMoreover，theSPCalgorithmappliesthespecifictechnologiestoidleslotsandcollisionslotsTheperformance