文献翻译——一种基于指纹识别的IC卡门禁系统

第1页外文文献资料AnIntelligentCardEntranceGuardSystemBasedOnFingerprintSituationsandsoonsubwaywhich,touristattractionentrancemustentermanytimesregardingaticketsystem,thetraditionalpaperbookingwaymoreandmorewasnotalreadysuitableforvariousdivisionalmanagementrequest,carriesonthecomputerelectronadmissionticketmanagementisthesocialdevelopmentultimately.Andtheentrancestatusauthenticationistheentranceguardmanagementcorework.Inthepresentmanycomputersystem,usersstatusauthenticationusesmostly;UserID+passwordMethod.Infact,thismethodconcealsthepasswordeasilytoforget,maytotransmit,easilybyotherstheftwithandsoonsecurityproblem,simultaneouslyneedsthepasswordinputintheentrancenottosuitthestreamofpeoplequantitybigpublicplace,thereforeneedsonemoreconvenientreliablestatusauthenticationplanintheelectronicentranceguard.Inviewintheabovequestion,thisarticlediscussedonekindtodevelopsuccessfulbasedonthematurefingerprintbiologyrecognitiontechnologyandtheICcardtechnologyelectronicentranceguardsystem,ithasThepersoncardunitesThefunction,facilitatescarriesontheentrancestatusauthenticationreliably,isveryadvantageousforthedivisionalmana.1.Entranceguardsystemoverallconcept1.1.ThepersoncardunitesDesignmentalityThebiologicalrecognitiontechnologyisonekindaccordingtohumanitysphysiologicalcharacteristic(fingerprint,sound,theface,irisandsoon)carriesonindividualstatusauthenticationtodebateknowsthetechnology.Inrecentyears,alongwithinformationindustriesdevelopment,thebiologicalrecognitiontechnologyindomesticandforeignobtainedmoreandmoreextensiveresearchandtheapplication.Andthefingerprintautomatic第2页diagnosistechnologydevelopsthematurestonebiologicalrecognitiontechnologynow,thefingerprinttakesthehumanbodybiologyrecognitiononeway,ithasthefollowingseveralremarkablemerits:(1)determinism:Eachfingerprintinpersonsixmonth-longtimeforms,lifelongwillnotchangelater,evenifisscratched,theburn,solongaswillnotinjuryandthedermis,willnotchangehisfingerprintshape.(2)uniqueness:Twocompletelysamefingerprintsappeartheprobabilityissmall,doesnotsurpass1/60000000000.(3)sampleissimple:Onlyneedsanelectriccapacityoropticsfingerprintgatheringmaygatherthefingerprintimage.Thestoreddatumarefew:Inthefingerprintrecognitionusesthetemplateisonlythecharacteristicbytewhichwithdrawsfromthefingerprintpicture,butisnottheviewpicturefingerprintpicture,thecharacteristicbytessizeis300400B,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-writemachinesandtoolsroll-downdoorarecalledthefingerprintICcardroll-downdoor.Unifythefingerprintrecognitiontechnologyandthesmartcard,isinthepresententranceguardsystemthebrightestoutlookstatus第3页authenticationplan.Notonlyithassolvedthepaperadmissionticketstatusauthenticationdifficultproblem,moreover,becausehasrealizedThepersoncardunitesComputermanagement,alsohasprovidedthenimbleentranceguardplanforthesuperintendent.ICcardentranceguardsystemisakindofauthenticationusingthecomputer,open/closethedoor,loginusertogooutintotheinformationautomationmanagementsystem.ICcardentranceguardsystemisaelectronicdoorlocksystem,tomanagemultiplecontrolleddooreachtoenterthecontrolleddoor(user),mustapplytothemanager(orthegrantee),andgetanICcard(i.e.,electronickey).CardholderwillICCARDSinacardreadercontrolleddoor,afteraccesscontrolsubsystemofICcardiscorrect,controlleddoortoopenit.DesignaperfectICcardentranceguardsystemshouldconsiderthefollowingaspects.1.2.SystemcompositionBasedontheabovedesignmentalityandthegeneralpracticalapplicationrequest,thecommonfingerprintICcardentranceguardsystemiscomposedof3parts.EntranceguardmanagementsystemmanagementsystemTheentranceguardmanagement.Subsystemcompletestheadmissionticketmanagementandsendsthecardtwofunctions.Andtheadmissionticketmanagementsoftwarerealizesmanagementtasksandsoonadmissionticketrecord,inquiry,statistics.So-calledsendsthecardisreferstobeforethecardreleasefortheuser,needsbytosendthecardorganizationthecardapplicationseriesnumber,thepassword,thepermissionusenumberofdaysandsoonbasicinformationtoreadintheuserICcardthisprocess.Generallyspeaking,theentranceguardmanagesPCmachinetobepossibletorealizethedataacquisitionthroughtwoways:UseslargecapacityICcardartificialbatchgatheringortheunderlyingbedelectronroll-downdoornetworkwhichformsthroughtheserialportinterconnectionreal-timecompletesentrydatagathering.Regardinghasmanyentranceentranceguardsystems,likethelarge-scalesoccerstadium,hasthemanyscenicspotlarge-scalenaturalscenicspotsandsoon,needsinthedifferentplace,toinstallmanysuchsubsystems.Bynowthesystemneededtobeawayfromandtheuserrequestaccordingtotheplace,managesPCmachine第4页variousadmissionticketstocomposealocalareanetworkagain,isadvantageousforthevariousentrancesglobaladministrationandthedatatransmission.Regardingthelarge-scalestadium,betweenmanyentrancesisawayfromnear,uses10Morthe100Methernetismoreappropriate.Regardingthelarge-scalenaturalscenicareaorthesubway,variousentrancesareawayfromfar,andtheterrainiscomplex,thestringcableisdifficult,tousebasedontheanalogcommunicationswaypublictelephonenetwork(PSTN),basicmaysatisfythesystemrequest.fingerprintICcardTheso-calledfingerprintICcard,isreferstotherecorduserbiologyfingerprintcharacteristicvalueandotherinformationvaluememoryICcard.Intheentranceguardsystem,thefingerprintICcardisoneelectronicadmissionticketwhichhasonlybytheuser.Whentheuserusesforthefirsttime,readsintogetherthecardbytheICcardroll-downdoorextractionfingerprintandwiththecurrenttime,thecardholderwheneachtimewillenterlaterthiscardinsertioncardreader,willextendafterwardthefingertothefingerprintgatheringwindow,thecardreaderthenautomaticallycomparesrightlyinhisfingerprintandthecardfingerprint,willcomparestartstheroll-downdoortothesuccesstoallowtopass,simultaneouslywillrecordinformationandsooncardnumberwhich,timewillenter.AtpresentinthemarkethasmanykindsofmodelICcards,regardingeachManufacturersproduct,thecharacteristicisalsodifferent.ForexampleAmericanATMELCorporationproducesat88C102encryptionmemorystick,thisclampingapparatushave1kBencryptionEEPROM,the2Bpassword,4passwordcomparisonopportunity,100,000read-writecirculationability,definitelymaymeettheentranceguardsystemsneeds.ICcardelectronroll-downdoorfingerprintTheICcardelectronroll-downdooristhekeypointwhichthisarticlesaidthatitbythefingerprintgatheringconfirmationmodule,theICcardreader-writer,themonolithicintegratedcircuitcontrolsystem,theelectricallyoperatedroll-downdoor4partsiscomposed.Andthefirst3partsorganicallydissolveintheroll-downdoorboxbody,formsanindependentidentificationauthenticationtogetherand,entersthecontrolterminal.Itmaytheindependencecompleteswhenthecardfirstuseinthesuperiorcomputertheuserfingerprint第5页extraction,readinwithuseswhenoncemoreidentificationauthenticationaswellasthelogicaljudgementandsoonseveralelementaryoperationeos.1.3.ICcardelectronroll-downdoorTheICcardelectronroll-downdooristhefingerprintentranceguardsystemscore,afterdiscussingtheentranceguardsystemdesignmentalityandthesystemcomposition,thefollowingwillmakethefurtherintroductiontothefingerprintICcardroll-downdoorvarioussubmodulescompositionandthefunction.FingerprintgatheringverificationmoduleThedigitalfingerprintgatheringverificationmoduleincludinga35mm35mmelectro-opticinductionboard(i.e.gatheringwindowOpticalUnit),32CPU,dynamicrandom-accessmemory(DRAM),dodgessaves(FlashMemory),partcompositionsandsoonprogrammablelogicalcomponent(PLD),itsstructurediagramasshowninFigure2.Itisonebasedonthethirdpartyproductindependentsubsystem(e.g.AmericanATMEL-GrenobledivisionCorporationsFCD4A14seriesfingerprintsensorandsoon).ThefingerprintgatheringverificationmodulemayprovideaRS-232connectionandthemonolithicintegratedcircuitcarriesontherelation,completesthefollowingtwofunctionsunderthemicroprocessorcontrolsystemsparticipation.First,cangatherthecompletedigitalfingerprintimage,andwithdrawsthecharacteristicbiologycode,thetransmissiongivesthemonolithicintegratedcircuitsystem.Nextcancarryonthefingerprintappraisalautomatically:Theextractionfingerprintgatheringimagecharacteristic,andthisdigitalfingerprintcharacteristicbiologycodeinformationstorageinFlash,withhasintheICcardthisusercharacteristicbiologycodeinformationtocarryonautomaticallyinadvanceagainthecomparison;Canaccordingtooccupythefingerprintverificationresultcertaintransmissionregulationstotransmitforthemonolithicintegratedcircuitsystem.ElectromotivetypeICcardreader-writerTheICcardreader-writeristheroll-downdoorsystemdirectlywiththesmartcardcontactmechanicalandelectricalinstallment,itcontainstheinterfacecircuit.CPUmaycompleteinthereader-writercardthroughtheoperationsuccessionthedataread,to第6页readinandsoonelementaryoperationeo.ItisCPUcarriesontothesmartcardreads/writestheoperationthebridge.Inordertocausethesystemtobemoreconvenientquickly,weusedelectromotivetypeenteredthecardcontrolstructure.electricallyoperatedroll-downdoorWhathereusesisthreerollerelectricallyoperatedroll-downdoors,itistheentranceguardsystemsimplementingagency,controlsitthroughthemonolithicintegratedcircuittoopen,thepass.monolithicintegratedcircuitcontrolsystemThemonolithicintegratedcircuitcontrolsystemisfingerprintICtheCarmenbrakesystemseriesmovementcore,itisresponsibleforcoordinationsystemeachwork,completestheICcardread-write,fingerprintgatheringandtheconfirmationordertransmission,theroll-downdoorimplementingagencycontrol,realizeseachkindofroll-downdoorcontrollogicaccordingtotheuserrequest,simultaneouslyuses12864latticeLCD(English4linesof8characters,Chinese4linesof8characters)demonstratesthecurrentcondition,carriesonworkandsoonmovementpatterncutaccordingtothekneadingboardinput.2.ICcardentranceguardsystemsystemcharacteristicsa,securityDesignaentranceguardsystem,thefirstthingtoconsideristhesystemsecurity,whichcaneffectivelycontrolpersonnelaccess,andmasteritsaccesstoinformation.ForICcardentranceguardsystemisakindofintelligentelectroniccontrolsystem,canmakefulluseofcomputerintelligence,atthesametimeusingavarietyofmeanstocontrol,toensurethesafetyofthesystemisreliable.Oneofthemostsimpleandeffectiveisthefollowingseveralkindsofmeans.OneissetupbyICencryptioncardpassword,forauthentication,ifpasswordcheckafterseveraltimes(usuallythree)isstillnotcorrect,thecardwillbeautomaticallydestroyedcannotcontinuetouse.Thiscaneffectivelypreventtheftofuserinformationmaliciousvalidation.第7页Itisusedinthesystemuserpermissionstableagaincertificationifthecardholdercanintothedoor.ThreeiseachhassetadeadlinefortheeffectiveuseofICcard,ifmorethanthevalidityoftheICcard,itisalloftheusersdatawillbeautomaticallydeletedfromtheaccesscontrolsubsystem,controlmodule,thecardinvalid.b,reliabilityFromthetwoaspectsofhardwareandsoftwaretoconsider.Hardwarereliability,inadditiontotheelectroniclocksandothermechanicalparts,themainconsiderationchildcontrolmoduleoftheproductionanduse,becauseitneedstobeconstantlyworking24hoursaday,sothehighperformancerequirements,shouldbeabletomeetthechangeoftemperatureandhumidityenvironment,aswellasthestrongabilitytoresistelectromagneticinterferenceandsoon.IfNewton7000seriesmoduleschosenasthecontrolmodule,becausethemodulehasastrongadaptivecapability,canautomaticallyadjustthesignalofdifferentbaudrate,alongwithavarietyofprotectioncircuit,etc.,enoughtoguaranteethelowermanagementneeds.Thereliabilityofthesoftwaredesign,mainconsiderationofvariouskindsofstatusinformationacquisitionandmaintenance,whetherthedesignofcommunicationprotocolspecification,theprocessingofvariousspecialcasesisreasonable,andsoon.Forexample,inordertoensurethatcommunicationbetweenthemastercomputertocontrolmoduleareallright,canuseautomaticretransmissionerrorcorrectionmechanism,effectivelyeliminateaccesscontrolsubsystemandmanagementcomputerinthenetworkatthesametimesignalconflictthatmayoccurwhileworking.c,flexibilityBecauseallthedatainthesystemissetupandmanagethroughcommunicationbetweenmastercomputerandcontrolmodule.Managerscanaccordingtotheirownneeds,freetosetthepassword,theuserpermissions,locksdelaytimeandsoon.Atthesametime,themastercomputerandthecontrolmoduleindependentlyworkatordinarytimes,onlyinsettingupcontrolmoduleoftheinitialdata,modifydatainachildcontrolmodule,第8页recordedinthesubcontrolmoduleofinformationsuchascase,thetwodidntneedtocommunicatewitheachother,communicateinformation.Thiskindofdesignmethodbringstothesystemflexibility.d,parallelismInordertoreducethehardwarecost,canbeachildcontrolmoduleisdesignedtocontrolmorethanonedooratthesametime,forexample,theuseoftheI-7188asachildcontrolmodule,achildcontrolmodulecancontrolthreedoor,atthesametime,infact,thisconfigurationisequivalenttoamacroontheparallelprocessingmechanism.e,multifunctionalUserpermissionstablecanbearbitrarysetbymanagement,anduseupisveryflexible,itiseasytomeetadoorcard,morethanadoorcard,morethanonecardandsoondifferentrequirements.f,scalabilityTheusersdemandisconstantlychanging,whendesigningthesystemshouldbeacertainamountofleeway,guaranteethedynamicdemandofusers.Forexample,eachcontrolmoduleinthesystemhasauniqueaddress,needtoincreasethecontrolgatenumber,justincreasethenumberofcorrespondingcontrolmoduleandaccesscontrolsubsystem,andgivethechildcontrolmoduleonlyaddressallocation.3.Thesystemishard,softwaredesignandperformanceindex3.1.MonolithicintegratedcircuitcontrolsystemhardwarediagramInthefingerprintroll-downdoorsystem,themonolithicintegratedcircuitcontrolsystemhardwaredesignisasystemresearchanddevelopmentdifficulty.ItincludingtheICcardconnection,thestonerollercontrol,thefingerprintmeterconnection,thesystemLCDdemonstrationandtheperipherymemoryexpandstheconnectionaswellasthesystempowersourceandsoonseveralpartofelectriccircuitcompositions.ItsoverallconcretedesigndiagramasshowninFigure3.ThemicroprocessorandtheperipherychipusetheI2Cserialbussingtechnique:NamelysimulatestheI2Cserialmain第9页linesuccessionusingat89051twoI/Omouthline,usestheI2CconnectioncomponenttocarryontheI/Omouthexpansionagain.Asthematterstands,althoughhasincreasedthesoftwareprogrammingdifficulty,butactuallygreatlyreducedhasmeltedthehardwarecircuitdesign,enhancedsystemsstabilityandthereliability,meanwhilereducedthehardwarecost.Moreoverontheonehand,fortheenhancementsystemtotherelayelectricarcandelectromagnetismantijammingability,eacheffectiverangeusestheindependentpowersourcepowersupply,eachsignalbetweendirectconnection,usesupthepairisolation.Inthecircuitdesignalsomanyplaceusesthedecouplingelectriccapacityandselectsthehighqualitypowersource,reducedhasexchangedreturnroutespowerfrequencydisturbance.3.2.SystemsoftwareflowOnwhensystemelectricityreplacementinitialization,inreadsystemEEPROMeachparameter,thenfixedtimeexamineswhethertohavethecardinsertion,andunceasinglyrefurbishingsystemdemonstration.Whenhasthecardinsertion,completestheICcardexamination,thefingerprintgatheringverification,theroll-downdoormotorcontrol,thebasiclogicalcheckingandsoonbasicfunction.3.3.SystemperformanceTheICcardfingerprintentranceguardsystemwhichstatesregardingthisarticle,therecognitionperformanceindexissystemskey.Afterusesforalongtimeandtestsmanytimes,eachtargetisasfollows.Characteristicbytesize:400,FRR:0.1%,FAR:0.001%.Operature:-540；Workhumidity:RH90%；Obviouslythesystemreflectionspeedisquick,therecognitioneffectisgood,andtheperformancecharacteristicisstable.4.SubtotalAlongwithourcountryinformationindustriestechnologysfastdevelopment,thebiologicalrecognitiontechnologyandtheICcardtechnologyhasobtainedthewidespreadapplicationseparatelyintherespectivedomain.第10页Basedonthis,thisarticleunifiedbothwereproposingtogetherThepersoncardunitesThefingerprintICcardtechnologymentalityanddiscussedonekindoffingerprintICcardelectronentranceguardsystem,discussedthesoftwareandhardwarewhichtheentranceguardsystemssystemdesigndisciplefloodgatesystemsmonolithicintegratedcircuitcontrolledtorealize.ThissystemthematurefingerprintbiologyrecognitiontechnologyandtheICcardtechnologywillunifycloselyintogether,hassolvedintheroll-downdoorsystemsstatusauthenticationproblemwell,willhavethereliabilitytobestrong,securehighercharacteristic.Atpresentthissystemreal-timemovement,hasmadethegoodmovementprogressonthespot.第11页中文翻译稿一种基于指纹识别的IC卡门禁系统对于一票制而需多次进入的地铁、旅游胜地入口等场合，传统的纸质售票方式已经越来越不适用于各部门管理的要求，进行计算机电子门票管理是社会发展的大势所趋。其中入口处的身份认证是门禁管理的核心工作。在现行的许多计算机系统中，用户的身份认证大都使用用户ID+密码的方法。实际上，这种方法隐含着密码易遗忘、可传递、易被别人窃盗用等安全问题，同时在入口处需要密码输入不适合人流量较大的公共场所，因此在电子门禁中需要一种更为便捷可靠的身份认证方案。针对于上述问题，本文讨论了一种已研制成功的基于成熟的指纹生物识别技术和IC卡技术的电子门禁系统，它具有人卡合一的功能，便可靠地进行入口身份认证，十分便于部门管理。1.门禁系统总体方案1.1.人卡合一的设计思路生物识别技术是一种根据人类的生理特征(指纹、声音、脸孔、虹膜等)来进行个人身份认证的辩识技术。近年来，随着信息产业的发展，生物识别技术在国内外得到了越来越广泛的研究和应用。其中指纹自动识别技术是当今发展最成熟的一种生物识别技术，指纹作为人体生物识别的一种方式，它具有以下几个显著的优点：(1)确定性：每个指纹在人六个月的时候形成，以后终身不会改变，即使被划伤、烧伤，只要不伤及真皮，都不会改变他的指纹形状。(2)唯一性：两个完全一样的指纹出现的概率非常小，不超过600亿分之一。(3)取样简单：只需一个电容或光学的指纹采集器就可采集指纹图像。存储数据少：指纹识别中使用的模板只是从指纹图片中提取的特征字节，而不是整幅指纹图片，特征字节的大小为300400B，存储量相对较小。另一方面，与磁卡相比IC卡作为个人指纹的载体又具有以下几个优点：(a)IC卡片使用寿命较长，一般可反复读写10万次以上。(b)卡片存储容量大，具有足够空间存放指纹图像的特征数据。(c)加密存储卡具有逻辑加密功能，卡片受密码保护，可以防止非法复制。门禁系统将卡持有者的指纹加密后存储在智能卡上，并在智能卡的读写机具(或系统上)加装指纹识别系统，当持卡者将卡插入智能卡读写机具时，读写机具首先将指纹信息第12页读出来并要求用户比对指纹，通过比对卡上的指纹和持卡者本人的指纹就可确定持卡者是否为卡的真正主人。这样便保证了只有真正的卡主人才能使用这张卡。我们将这种加装了指纹识别系统和智能卡读写机具的门闸称为指纹IC卡门闸。将指纹识别技术和智能卡结合起来，是目前门禁系统中最具有前景的身份认证方案。它不但解决了纸质门票的身份认证难题，而且