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外文翻译--语音电子密码锁的设计.doc

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外文翻译--语音电子密码锁的设计.doc

1毕业设计外文翻译VOICEOFELECTRONICPASSWORDLOCKDESIGN语音电子密码锁的设计本科电气与信息学院2008年5月15日学生姓名学历层次所在院系所学专业指导教师教师职称完成时间2VOICEOFELECTRONICPASSWORDLOCKDESIGNRIV9PCW0RLDCOM/JUNE2006ABSTRACTTHEDESIGNISTHEUSEOFVOICERECOGNITIONTECHNOLOGYANDKEYBOARDINPUT,SUNPLUSSPCE061ASCMINACHIEVINGAVOICEELECTRONICPASSWORDLOCKAUTHENTICATIONSYSTEMVOICERECOGNITIONANDELECTRONICPASSWORDLOCKFUNCTIONOFTHEORDINARYLOCKS,ANDDUALROLEOFSECURITYTHEPASSWORDLOCKSAFE,EFFECTIVE,RELIABLE,BUTALSOHASVOICERECOGNITION,PASSWORDPREFERENCES,CONFIDENTIALITYSTRONG,TIPSANDOTHERFEATURESOFERRORKEYWORDSSPCE061A;VOICERECOGNITION,ELECTRONICPASSWORDLOCK;FLASH1INTRODUCTIONASPEOPLESLIVINGSTANDARDSIMPROVEANDSTRENGTHENTHESENSEOFSECURITY,SAFETYLOCKSSYSTEMBECOMESESSENTIAL,THEREFOREAPASSWORDLOCK,MAGNETICLOCKS,ELECTRONICLOCKS,LASERLOCK,VOICEACTIVATEDLOCKLOCKS,ETC,THEYAREONTHEBASISOFTRADITIONALKEYS,USINGONEORMOREPASSWORDS,DIFFERENTVOICES,DIFFERENTMAGNETICFIELD,DIFFERENTSOUND,DIFFERENTLIGHTBEAMSOFDIFFERENTIMAGESSUCHASFINGERPRINTS,RETINARETINA,ETCTOCONTROLOPENTHELOCKINTHISPAPER,USINGSPEECHRECOGNITIONTECHNOLOGYANDKEYBOARDTOCONTROLTHEIMPORTATIONOFTHEINTEGRATIONOFSCMINSUNPLUSSPCE061AACHIEVEAVOICEONTHEELECTRONICCERTIFICATIONSYSTEMPASSWORDLOCK2VOICEELECTRONICPASSWORDLOCKSYSTEMTHISSYSTEMISMAINLYCOMPOSEDOFSUNPLUSSPCE061ASCM,MICINPUTCIRCUIT,VOICEOUTPUTCIRCUIT,44KEYBOARD,SIXQIDUANLEDDISPLAYANDOUTPUTCONTROLANDFLASHMEMORYCOMPONENTSSYSTEMISTHEMAINFUNCTIONTHETRAINING,THESPEAKERSVOICETHROUGHAMICROPHONEINTOTHESPEAKERVOICESIGNALACQUISITIONFRONTENDCIRCUIT,BYVOICESIGNALPROCESSINGCIRCUITONTHEACQUISITIONOFTHECHARACTERISTICSOFVOICESIGNALSANDVOICEPROCESSING,FROMTHESPEAKERSPERSONALITYCHARACTERISTICSANDPARAMETERSSTORE,ASPEAKERPARAMETERSDATABASEINRECOGNITION,WILLBEVOICERECOGNITIONANDSPEAKERPARAMETERSDATABASEMATCHING,VOICERECOGNITIONANDCOMPLETECONTROLOFTHEKEYBOARD,ANDACTIVATEORRELEASEOFLOCKS,THEFINALCOMPLETIONOFTHELOCKSYSTEMISRELYINGONHARDWAREANDSOFTWARETOCLOSELYCOOPERATEWITHTHESUNPLUSSPCE061ASCMFLEXIBLECONTROLACHIEVED3VOICEENTRYDUETOTHEINTERFERENCEOFEXTERNALENVIRONMENT,ITISPOSSIBLEERRORS,BUTTHROUGHANUMBEROFTRAININGCANMAKECOMPARISONANDIDENTIFICATIONOFVOICEGREATLYIMPROVED3SYSTEMHARDWAREDESIGNTHESYSTEMUSINGASINGLEKERNELOFSUNPLUSSPCE061A,THECHIPHASADC,DAC,TIMER/COUNTER,RAM,FLASH,ANDOTHERDEVICES,COUPLEDWITHAPPROPRIATEEXTERNALCIRCUITANDSUPPORTINGSUNPLUSCOMPANYSINTEGRATEDDEVELOPMENTENVIRONMENT,CANEASILYCOMPLETETHEDESIGNOFHARDWAREANDSOFTWAREPROGRAMMING,THUSACHIEVINGTHEABOVEMENTIONEDFUNCTIONSVOICEELECTRONICCODELOCKSYSTEMISTHECOREOFSPEECHRECOGNITIONMODULESPCE061AISSUNPLUSHASDEVELOPEDAVERYHIGHPRICEOFTHE16BITMICROCONTROLLER,EMBEDDED2KWORDOFSRAMAND32KWORDFLASH,WITH32PROGRAMMABLEMULTIPURPOSEI/OPORTSINCLUDE7CHANNEL1OGENERALA/DCONVERTER,BUILTINMICROPHONEAMPLIFIER,AGCAGCFUNCTIONOFTHESINGLEVOICEOFA/DCONVERTER,ANDTHEAUDIOOUTPUTOFTHEDUALCHANNEL1OBITD/ACONVERTERINTHE26V36VOPERATINGRANGEOFFREQUENCYRANGEOF032MHZ49152MHZ,HIGHPROCESSINGSPEEDENABLEITTOEASILYANDQUICKLYHANDLECOMPLEXDIGITALSIGNAL;SUSPENSIONSYSTEMTOSUPPORT1OINTERRUPTVECTORANDL4FROMTHESYSTEMCANBEACLOCK,TIMER/COUNTER,TIMEBENCHMARKGENERATOR,EXTERNALINTERRUPT,KEYWAKEUPCALL,UNIVERSALASYNCHRONOUSSERIALCOMMUNICATIONANDSOFTWAREINTERRUPTIONINTERRUPTSOURCE,VERYSUITABLEFORREALTIMEAPPLICATIONS;UNSPTMCOMMANDSYSTEMALSOPROVIDESHIGHCOMPUTINGSPEEDOF1616BITMULTIPLICATIONINSTRUCTIONSANDDIRECTIVESWITHINTHEPLOTOPERATION,THEDSPFORTHEAPPLICATIONOFADDITIONALFEATURESINACOMPLEXDIGITALSIGNALPROCESSINGBOTHVERYCONVENIENTTHANTHEDSPCHIPFORMUCHCHEAPER31VOICEINPUTCIRCUITSPCE061ABUILTIN8CHANNEL1OBITA/DCONVERTER,WHICHWILLBESEVENCHANNELSFORANALOGSIGNALSSUCHASVOLTAGESIGNALCONVERTEDTODIGITALSIGNALS,ACHANNELUSEDONLYFORVOICEINPUT,THROUGHTHEBUILTINAUTOMATICGAINCONTROLAMPLIFIERTHEMICROPHONECHANNELSMICININPUTTHEREFORE,ITCANBEDIRECTLYGIVENTOTHEVOICESIGNALINPUTCHANNELS,THECOMPLETIONOF8KHZVOICESIGNALSINTHECOLLECTION,ENCODINGANDSTORAGETOOFFCHIPFLASH,SIMPLIFYINGTHECIRCUITDESIGN432AUDIOOUTPUTCIRCUITSUNPLUSSPCE061AMCUWITHAUDIOOUTPUTOFDUALCHANNEL1OBITD/ACONVERTERSCANCOMPLETEUSERTRAINING,IDENTIFICATIONOFVARIOUSOPERATIONS,SUCHASTHEVOICEPROMPTSSPCE061APROVIDEAUDIOLOSEAWAYFORTHEDUALCHANNELDAC,INTHISMANNER,DAC1ANDDAC2CONVERSIONOFANALOGCURRENTOUTPUTSIGNALPASSEDAUD1ANDAUD2PINOUTPUT,ENTERTHENUMBEROFVOLUMEINTOTHEPDAC1WRITE0X7017ANDPDAC2WRITE0X7016UNIT33SIXQIDUANDISPLAYOFDIGITALCIRCUITSLEDDISPLAYSINEACHLEDTHROUGH520MACURRENTTOACHIEVETHENORMALBRIGHTNESS,ANDTHEIOISPCEO61AOUTPUTCURRENTUPTO5MA,DONOTHAVETODRIVECIRCUITTOREACHNORMALBRIGHTNESSINORDERTOMEETTHERELIABILITYOFSYSTEMSDESIGN,DRIVENBYATRANSISTORCIRCUITTHEWHOLEPROCESSSHOWEDTHATTHEUSEOFDYNAMIC,THATIS,SIXMONITORSEACHCYCLE,EACHSUSTAINEDLMSOR10MSCYCLEAGAIN,CANALSOBEAPPROPRIATETOMAKECHANGES,BUTTHEREFRESHRATENOTLESSTHAN30PERSECOND,SOTHATTEMPORARYSTAYBECAUSEOFTHEVISUALPHENOMENON,ISSIXQIDUANSEETHELEDDISPLAYATTHESAMETIMESHOW34MATRIXKEYBOARDSCANCIRCUITENTERKEYPARTOFATOTALOFTHENUMBERKEYS,PASSWORDS,KEYSSET,THEKEYSHOWNPASSWORD,TOCONFIRMREMOVALOFKEYSANDPASSWORDS,ANDOTHERKEY16KEYS,ENTERYOURPASSWORDANDFORTHEREALIZATIONOFFUNCTIONKEYSTHISDESIGNUSESAWAKEUPFUNCTIONKEYSOFTHEIOLOWEIGHTIOA0IOA7TO44ASTHECONTROLINPUTOFTHEKEYBOARD,WHICHCANBERATIONALUSEOFHARDWARERESOURCESANDPROGRAMMINGFLEXIBILITYRECOGNITIONKEYBOARDKEYSAREPRESSEDWHETHERTHEMETHODISLETALLOUTLINESARELOW,CHECKTHETRAFFICONWHETHERTHEREISAHIGHLEVEL,IFTHEREISASTATEMENTTHATAKEYISPRESSED,IFNOT,THENNOKEYSAREPRESSEDACTUALPROGRAMMINGKEYSSHOULDBETAKENINTOACCOUNTTHEIMPACTOFJITTER,USUALLYALWAYSUSETHESOFTWAREDELAYPROCESSINGMETHODSCONSUMERSBUFFETINGIDENTIFYSPECIFICKEYSUSEDSCANNINGMETHODHOMEBYZEROLEVELOUTANDCHECKTHELEVELOFTHECARRIAGEWAYOFTHECHANGES,IFALINEFROMTHELOWLEVELINTOAHIGH,THISTRIPCANBESURETHISCOLUMNCROSSPOINTBUTTONISPRESSED35FLASHEXPANSIONOFEXTERNALCIRCUITSPCEO61AFLASHMEMORYCHIPOFONLY32K,LARGENUMBEROFPLAYERSINTHE

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