外文翻译--语音电子密码锁的设计.doc

1毕业设计外文翻译VoiceofElectronicPassword-lockDesign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2VoiceofElectronicPassword-lockDesign(RIV9.PCW0RLD.COM/JUNE2006)Abstract:Thedesignistheuseofvoicerecognitiontechnologyandkeyboardinput,SunplusSPCE061ASCMinachievingavoiceelectronicpasswordlockauthenticationsystem.Voicerecognitionandelectronicpasswordlockfunctionoftheordinarylocks,anddualroleofsecurity.Thepasswordlocksafe,effective,reliable,butalsohasvoicerecognition,passwordPreferences,confidentialitystrong,tipsandotherfeaturesoferror.Keywords:SPCE061A；voicerecognition,electronicpasswordlock；FLASH1IntroductionAspeopleslivingstandardsimproveandstrengthenthesenseofsecurity,safetylockssystembecomesessential,thereforeapasswordlock,magneticlocks,electroniclocks,laserlock,voice-activatedlocklocks,etc.,theyareOnthebasisoftraditionalkeys,usingoneormorepasswords,differentvoices,differentmagneticfield,differentsound,differentlightbeamsofdifferentimages(suchasfingerprints,retinaretina,etc.)tocontrolopenthelock.Inthispaper,usingspeechrecognitiontechnologyandkeyboardtocontroltheimportationoftheintegrationofSCMinSunplusSPCE061Aachieveavoiceontheelectroniccertificationsystempasswordlock.2voiceelectronicpassword-locksystemThissystemismainlycomposedofSunplusSPCE061ASCM,MICinputcircuit,voiceoutputcircuit,4×4keyboard,sixQiduanLEDdisplayandoutputcontrolandFLASHmemorycomponents.Systemisthemainfunction:thetraining,thespeakersvoicethroughamicrophoneintothespeakervoicesignalacquisitionfront-endcircuit,byvoicesignalprocessingcircuitontheacquisitionofthecharacteristicsofvoicesignalsandvoiceprocessing,fromthespeakerspersonalitycharacteristicsandparametersStore,aspeakerparametersdatabase.Inrecognition,willbevoicerecognitionandspeakerparametersdatabasematching,voicerecognitionandcompletecontrolofthekeyboard,andactivateorreleaseoflocks,thefinalcompletionofthelock.SystemisrelyingonhardwareandsoftwaretocloselycooperatewiththeSunplusSPCE061ASCMflexiblecontrolachieved.3Voiceentryduetotheinterferenceofexternalenvironment,itispossibleerrors,butthroughanumberoftrainingcanmakecomparisonandidentificationofvoicegreatlyimproved3systemhardwaredesignThesystemusingasinglekernelofSunplusSPCE061A,thechiphasADC,DAC,timer/counter,RAM,FLASH,andotherdevices,coupledwithappropriateexternalcircuitandsupportingSunpluscompanysintegrateddevelopmentenvironment,Caneasilycompletethedesignofhardwareandsoftwareprogramming,thusachievingtheabove-mentionedfunctions.Voiceelectroniccodelocksystemisthecoreofspeechrecognitionmodule.SPCE061AisSunplushasdevelopedaveryhighpriceofthe16-bitmicrocontroller,embedded2KwordofSRAMand32KwordFLASH,with32programmablemulti-purposeI/Oportsinclude7Channel1O-GeneralA/Dconverter,built-inmicrophoneamplifier,AGCAGCfunctionofthesinglevoiceofA/Dconverter,andtheaudiooutputofthedual-channel1O-bitD/Aconverterinthe2.6V-3.6Voperatingrangeoffrequencyrangeof0.32MHz-49.152Mhz,highprocessingspeedenableittoeasilyandquicklyhandlecomplexdigitalsignal；suspensionsystemtosupport1OinterruptvectorAndl4fromthesystemcanbeaclock,timer/counter,timebenchmarkgenerator,externalinterrupt,keywake-upcall,UniversalAsynchronousserialcommunicationandsoftwareinterruptioninterruptsource,Verysuitableforreal-timeapplications；unSPTMcommandsystemalsoprovideshighcomputingspeedof16×16-bitmultiplicationinstructionsanddirectiveswithintheplotoperation,theDSPfortheapplicationofadditionalfeaturesinacomplexdigitalsignalprocessingbothVeryconvenientthantheDSPchipformuchcheaper.3.1voiceinputcircuitSPCE061Abuilt-in8-channel1O-bitA/Dconverter,whichwillbesevenchannelsforanalogsignals(suchasvoltagesignal)convertedtodigitalsignals,achannelusedonlyforvoiceinput,throughthebuilt-inautomaticgaincontrolamplifierThemicrophonechannels(MIC-IN)input.Therefore,itcanbedirectlygiventothevoicesignalinputchannels,thecompletionof8kHzvoicesignalsinthecollection,encodingandstoragetooff-chipFLASH,simplifyingthecircuitdesign.43.2audiooutputcircuitSunplusSPCE061AMCUwithaudiooutputofdual-channel1O-bitD/Aconverterscancompleteusertraining,identificationofvariousoperations,suchasthevoiceprompts.SPCE061AprovideaudioloseAwayforthedual-channelDAC,inthismanner,DAC1andDAC2conversionofanalogcurrentoutputsignalpassedAUD1andAUD2-pinoutput,enterthenumberofvolumeintotheP-DAC1(write)(0x7017)andP-DAC2(write)(0x7016)unit.3.3sixQiduandisplayofdigitalcircuitsLEDdisplaysineachLEDthrough520mAcurrenttoachievethenormalbrightness,andtheIOISPCEO61Aoutputcurrentupto5mA,donothavetodrivecircuittoreachnormalbrightness.Inordertomeetthereliabilityofsystemsdesign,drivenbyatransistorcircuit.Thewholeprocessshowedthattheuseofdynamic,thatis,sixmonitorseachcycle,eachsustainedlmsor10mscycleagain,canalsobeappropriatetomakechanges,buttherefreshratenotlessthan30persecond,sothattemporarystaybecauseofthevisualphenomenon,IssixQiduanseetheLEDdisplayatthesametimeshow.3.4MatrixkeyboardscancircuitEnterkeypartofatotalofthenumberkeys,passwords,keysset,thekeyshownpassword,toconfirmremovalofkeysandpasswords,andotherkey16keys,enteryourpasswordandfortherealizationoffunctionkeys.Thisdesignusesawake-upfunctionkeysoftheIOloweightIOA0-IOA7to4×4asthecontrolinputofthekeyboard,whichcanberationaluseofhardwareresourcesandprogrammingflexibility.Recognitionkeyboardkeysarepressedwhetherthemethodis:Letalloutlinesarelow,checkthetrafficonwhetherthereisahigh-level,ifthereisastatementthatakeyispressed,ifnot,thennokeysarepressed(Actualprogrammingkeysshouldbetakenintoaccounttheimpactofjitter,usuallyalwaysusethesoftwaredelayprocessingmethodsConsumersbuffeting).Identifyspecifickeysusedscanningmethod:home-by-zeroleveloutandcheckthelevelofthecarriagewayofthechanges,ifalinefromthelowlevelintoahigh,thistripcanbesurethiscolumncross-pointButtonispressed.3.5FLASHexpansionofexternalcircuitSPCEO61AFLASHmemorychipofonly32K,largenumberofplayersinthe