一种基于指纹识别的IC卡门禁系统.docx
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一种基于指纹识别的IC卡门禁系统.docx
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一种基于指纹识别的IC卡门禁系统
《一种基于指纹识别的IC卡门禁系统》中英文翻译
AnIntelligentCardEntranceGuardSystemBasedonFingerprint
Abstract
Anintelligentcardentranceguardsystembasedonfingerprintidentificationisproposedinthispaper.Thetotalideadesignedforthissystemisdescribedfirstly,andthentheimplementationofhardwareandsoftwareofSCMinthissystemarediscussed.Theidentificationandotherproblemsinthepreviouspaperticketssystemscanbesolvedverywellbuusingthecombinationoffingerprintidentificationandintelligentcardtechnologies.
Keywords:
Fingerprintentranceguard,Intelligentcard,fingerprintidentification,Singlechipmicrocomputer(SCM)
Situationsandsoonsubwaywhich,touristattractionentrancemustentermanytimesregardingaticketsystem,thetraditionalpaperbookingwaymoreandmorewasnotalreadysuitableforvariousdivisionalmanagementrequest,carriesonthecomputerelectronadmissionticketmanagementisthesocialdevelopmentultimately.Andtheentrancestatusauthenticationistheentranceguardmanagementcorework.Inthepresentmanycomputersystem,user'sstatusauthenticationuses"mostly;UserID+password"Method.Infact,thismethodconcealsthepasswordeasilytoforget,maytotransmit,easilybyotherstheftwithandsoonsecurityproblem,simultaneouslyneedsthepasswordinputintheentrancenottosuitthestreamofpeoplequantitybigpublicplace,thereforeneedsonemoreconvenientreliablestatusauthenticationplanintheelectronicentranceguard.Inviewintheabovequestion,thisarticlediscussedonekindtodevelopsuccessfulbasedonthematurefingerprintbiologyrecognitiontechnologyandtheICcardtechnologyelectronicentranceguardsystem,ithas"Thepersoncardunites"Thefunction,facilitatescarriesontheentrancestatusauthenticationreliably,isveryadvantageousforthedivisionalmana.
1.Entranceguardsystemoverallconcept
1.1"Thepersoncardunites"Designmentality
Thebiologicalrecognitiontechnologyisonekindaccordingtohumanity'sphysiologicalcharacteristic(fingerprint,sound,theface,irisandsoon)carriesonindividualstatusauthenticationtodebateknowsthetechnology.Inrecentyears,alongwithinformationindustries'development,thebiologicalrecognitiontechnologyindomesticandforeignobtainedmoreandmoreextensiveresearchandtheapplication.Andthefingerprintautomaticdiagnosistechnologydevelopsthematurestonebiologicalrecognitiontechnologynow,thefingerprinttakesthehumanbodybiologyrecognitiononeway,ithasthefollowingseveralremarkablemerits:
(1)determinism:
Eachfingerprintinpersonsixmonth-longtimeforms,lifelongwillnotchangelater,evenifisscratched,theburn,solongaswillnotinjuryandthedermis,willnotchangehisfingerprintshape.
(2)uniqueness:
Twocompletelysamefingerprintsappeartheprobabilityissmall,doesnotsurpass1/60000000000.(3)sampleissimple:
Onlyneedsanelectriccapacityoropticsfingerprintgatheringmaygatherthefingerprintimage.Thestoreddatumarefew:
Inthefingerprintrecognitionusesthetemplateisonlythecharacteristicbytewhichwithdrawsfromthefingerprintpicture,butisnottheviewpicturefingerprintpicture,thecharacteristicbyte'ssizeis300~400B,thereservesisrelativelysmall.
Ontheotherhand,comparestheICcardwiththemagcardtotakeindividualfingerprintthecarrieralsotohavethefollowingseveralmerits:
the
(1)ICcardservicelifeislong,generallymayrepeatedlyabovetheread-write100,000times.
(2)Cardstoragecapacityisbig,hastheenoughspatialdepositingfingerprintimagecharacteristicdata.(3)encryptionmemorystickhasthelogicalencryptionfunction,thecardthepasswordprotection,maypreventtheillegalduplication.
Afterentranceguardsystemcardholderfingerprintencryption,savesonthesmartcard,and(oronsystem)installsthefingerprintrecognitionsysteminthesmartcardread-writemachinesandtools,whenholdsthecardthecardinsertionsmartcardread-writemachinesandtools,theread-writemachinesandtoolsfirstreadthefingerprintinformationandrequesttheusercomparedtothefingerprint,throughcomparedtoandholdsthecardmyselffingerprinttothecardfingerprinttobepossibletodeterminethatholdsthecardwhetherforcardgenuinemaster.Thisthenguaranteedonlythenthegenuinecardmastertobeabletousethiscard.Wehaveinstalledthiskindthefingerprintrecognitionsystemandthesmartcardread-writemachines'andtools'roll-downdoorarecalledthefingerprintICcardroll-downdoor.Unifythefingerprintrecognitiontechnologyandthesmartcard,isinthepresententranceguardsystemthebrightestoutlookstatusauthenticationplan.Notonlyithassolvedthepaperadmissionticketstatusauthenticationdifficultproblem,moreover,becausehasrealized"Thepersoncardunites"Computermanagement,alsohasprovidedthenimbleentranceguardplanforthesuperintendent.
1.2Systemcomposition
Basedontheabovedesignmentalityandthegeneralpracticalapplicationrequest,thecommonfingerprintICcardentranceguardsystemiscomposedof3parts.
(1)EntranceguardmanagementsystemmanagementsystemTheentranceguardmanagement.Subsystemcompletestheadmissionticketmanagementandsendsthecardtwofunctions.Andtheadmissionticketmanagementsoftwarerealizesmanagementtasksandsoonadmissionticketrecord,inquiry,statistics.So-calledsendsthecardisreferstobeforethecardreleasefortheuser,needsbytosendthecardorganizationthecardapplicationseriesnumber,thepassword,thepermissionusenumberofdaysandsoonbasicinformationtoreadintheuserICcardthisprocess.Generallyspeaking,theentranceguardmanagesPCmachinetobepossibletorealizethedataacquisitionthroughtwoways:
UseslargecapacityICcardartificialbatchgatheringortheunderlyingbedelectronroll-downdoornetworkwhichformsthroughtheserialportinterconnectionreal-timecompletesentrydatagathering.Regardinghasmanyentranceentranceguardsystems,likethelarge-scalesoccerstadium,hasthemanyscenicspotlarge-scalenaturalscenicspotsandsoon,needsinthedifferentplace,toinstallmanysuchsubsystems.Bynowthesystemneededtobeawayfromandtheuserrequestaccordingtotheplace,managesPCmachinevariousadmissionticketstocomposealocalareanetworkagain,isadvantageousforthevariousentrancesglobaladministrationandthedatatransmission.Regardingthelarge-scalestadium,betweenmanyentrancesisawayfromnear,uses10Morthe100Methernetismoreappropriate.Regardingthelarge-scalenaturalscenicareaorthesubway,variousentrancesareawayfromfar,andtheterrainiscomplex,thestringcableisdifficult,tousebasedontheanalogcommunicationswaypublictelephonenetwork(PSTN),basicmaysatisfythesystemrequest.
(2)fingerprintICcardTheso-calledfingerprintICcard,isreferstotherecorduserbiologyfingerprintcharacteristicvalueandotherinformationvaluememoryICcard.Intheentranceguardsystem,thefingerprintICcardisoneelectronicadmissionticketwhichhasonlybytheuser.Whentheuserusesforthefirsttime,readsintogetherthecardbytheICcardroll-downdoorextractionfingerprintandwiththecurrenttime,thecardholderwheneachtimewillenterlaterthiscardinsertioncardreader,willextendafterwardthefingertothefingerprintgatheringwindow,thecardreaderthenautomaticallycomparesrightlyinhisfingerprintandthecardfingerprint,willcomparestartstheroll-downdoortothesuccesstoallowtopass,simultaneouslywillrecordinformationandsooncardnumberwhich,timewillenter.AtpresentinthemarkethasmanykindsofmodelICcards,regardingeachManufacturer'sproduct,thecharacteristicisalsodifferent.ForexampleAmericanATMELCorporationproducesat88C102encryptionmemorystick,thisclampingapparatushave1kBencryptionEEPROM,the2Bpassword,4passwordcomparisonopportunity,100,000read-writecirculationability,definitelymaymeettheentranceguardsystem'sneeds.
(3)ICcardelectronroll-downdoorfingerprintTheICcardelectronroll-downdooristhekeypointwhichthisarticlesaidthatitbythefingerprintgatheringconfirmationmodule,theICcardreader-writer,themonolithicintegratedcircuitcontrolsystem,theelectricallyoperatedroll-downdoor4partsiscomposed.Andthefirst3partsorganicallydissolveintheroll-downdoorboxbody,formsanindependentidentificationauthenticationtogetherand,entersthecontrolterminal.Itmaytheindependencecompleteswhenthecardfirstuseinthesuperiorcomputertheuserfingerprintextraction,readinwithuseswhenoncemoreidentificationauthenticationaswellasthelogicaljudgementandsoonseveralelementaryoperationeos.
1.3ICcardelectronroll-downdoor
TheICcardelectronroll-downdooristhefingerprintentranceguardsystem'score,afterdiscussingtheentranceguardsystemdesignmentalityandthesystemcomposition,thefollowingwillmakethefurtherintroductiontothefingerprintICcardroll-downdoorvarioussubmodules'compositionandthefunction.
(1)FingerprintgatheringverificationmoduleThedigitalfingerprintgatheringverificationmoduleincludinga35mm×35mmelectro-opticinductionboard(i.e.gatheringwindowOpticalUnit),32CPU,dynamicrandom-accessmemory(DRAM),dodgessaves(FlashMemory),partcompositionsandsoonprogrammablelogicalcomponent(PLD),itsstructurediagramasshowninFigure2.Itisonebasedonthethirdpartyproductindependentsubsystem(e.g.AmericanATMEL-GrenobledivisionCorporation'sFCD4A14seriesfingerprintsensorandsoon).Thefingerprin
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