完整word版出租车计费器外文翻译中英对照.docx

完整word版出租车计费器外文翻译中英对照.docx

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完整word版出租车计费器外文翻译中英对照

Basedonmonolithicintegratedcircuit's

multi-purposerentalcarmileage

faremeter'sdesign

Abstract:

IntroducedthatonekindtakemonolithicintegratedcircuitAT89S52asthecoremulti-purposerentalcarmileagefaremeter'sdesign,elaboratesinthesoftwareandhardwaredesignprocesskeytechnologiesprocessing.Thesimulationresultindicatedthatthismileagefaremeterhasthecollectionidearegulation,thetime,thecost,thememory,theexamination,thestatisticsandsoonmanykindsofmeasurementfunctions,andhastheoverspeedreminder,topreventthedrivertocheat,thepronunciation,theprintingandthedemonstrationandsoonmanykindsoffunctions.Compareswiththeexistingsystem,thissystemhastheoverspeedreminderandsoonastrongerfunction.

1introduction　

1introductiontherentalcarmileagefaremeteristherentalcartransportbusinesschargespecial-purposeintellectualizedmeasuringappliance,alongwithelectronictechnology'sdevelopment,therentalcarmileagefaremetertechnologyunceasinglyisalsoprogressingandenhances.Thedomesticrentalcarmileagefaremeterhadalreadyexperienced4stagedevelopment.Fromthetraditioncompletelythemechanicaltypewhichiscomposedofthemechanicalprimarydevice,namelyreplacesthepartmechanicalprimarydevice'srentalcarmileagefaremetertohalfelectronicformulawiththeelectroniccircuit;Againfromintegratedcircuittypetopresentmonolithicintegratedcircuitsystemdesignrentalcarmileagefaremeter.Therentalcarmileagefaremetercostiswhetheraccurate,thetaxidriverwhetheroverspeedisthepassengermostissueofconcern,butmileagefaremetertransportbusinessdatamanagementwhetherfacilitatesisthetaxidrivermostpaysattention.Howthereforetodesignonekindbothtobeabletopreventthedrivertocheateffectivelywithoverspeedandcanfacilitatedriver'smileagefaremeterespeciallyimportant.Therefore,thisarticleasthecoredesignsamodelofmulti-purposerentalcarmileagefaremetertakemonolithicintegratedcircuitAT89S52,thismileagefaremetercanrealizethecoursevaluationandthedemonstration,thedatastorageandtheinquiry,theclockdemonstratedthattheoverspeedreminder,thepronunciationdisseminatenewswithfunctionsandsoonbillprinting.Itismoreconvenientthanthemarketinsomemileagefaremeteruse,functionentire,butalsohaspreventsthedrivertocheateffectivelywiththesystemstabilitygoodmerit.Inwhichoverspeedreminderfunctionmayremindthedriverandthepassenger,warnedthatthedriverdonotwanttoexceedthespeedlimit,avoidstrafficaccident'soccurrence.

2　Systemhardwarestructureandfunctioncharacteristic

2.1　Overallplan

OverallplandesignblockdiagramasshowninFigure1,theoverallsystembymonolithicintegratedcircuitTheT89S52controlcircuit,A44EHallsensorelectriccircuitTheT24C02storagecircuit,theDS1302clockcircuit,theISD2560pronunciationdisseminatesnewstheelectriccircuit,thebillmarkingcircuit,thepressedkeyalignmentcircuit,theMAX7219actuationdisplaycircuitandthepowercircuitiscomposed.Themonolithicintegratedcircuitgathersandjudgesthespatialheadlightsignalandthedistanceexaminationsensorsignal,whentherentalcarstarts,themonolithicintegratedcircuitexaminestheHallsensor'ssignalimpulseandcarriesonthecoursecomputation.Whendoesnothavethepassenger,themonolithicintegratedcircuittransfersthereal-timetimechipDS1302procedureandtheMAX7219serialportdemonstrationdriver,carriesontheclockdemonstrationwith4LED;Theheadlightbreaksoffwhenintheskypassengerloading:

TheISD2560pronunciationdisseminatesnewstheelectriccircuittocarryonthepronunciationtodisseminatenews1（welcomepassengertoridethisrentalcar）,throughtheDS1302gaintimeinformationresolutiondaytime/theevening,thentransfersTheT24C02proceduregaindaytime/evening'sunitpriceandtheoutsetprice,thenstartsinformationandsoonvaluationandtelltime,courseandamount;Theheadlightgetsthepassengertogetoutintheskytime:

Carriesondisseminatesnews2（thanksridesthisrentalcaroncemore,pleasehandoveramount）,andprintsthegoodbill,themonolithicintegratedcircuitsavestransportbusinessdatamessageto24C02,waitedforaftertherentalcarstartsoncemore,singleinformationresetreplacementsandsoonamountandcourse,completeavaluationinlightofthis.

2.2　Hardwarecircuitdesign

Bythepowerunit,theHallsensordistancesurveypart,thedatademonstratedthatthepart,theclockpart,thepronunciationdisseminatenewsthepart,thebillprintingpartandthedatastoragepartandsooncompose,variouspartofportsareseparatelyconnectedwiththemonolithicintegratedcircuitAT89S52outlet,realizesmileagefaremeter'sfunctionthroughmonolithicintegratedcircuit'scontroltorealize.

2.2.1　Powerunit

Becausemileagefaremeter'sworkingconditionsarequitebad,itrequeststohavetheanti-vibration,theanti-highlowtemperature,anti-moist,abilitiesandsoonanti-electromagneticinterference,whenspeciallythepowersourceaspect'sdisturbance,liketherentalcarstarts,theengineflame,thestoragebatterychargeandsooncreateinputthemileagefaremeter+12Vpowersourcesnottobeunstable.Thereforeuses+12Vstoragebatterypowersourcesafterthefilterandthepowersourceconstantvoltagemanagementchip7805obtains+5Vregulatedvoltageoutputs,theguaranteeoverallsystemcanthenormalwork.

2.2.2　Distancesurveypart

Intherentalcarneedsonetobeabletoobtainthewheelrotationisthedistancemeasurementsignalinstallmentaccurately,byobtainsthestandardsignalimpulsetosendinthemonolithicintegratedcircuitfixedtime/counterT1isP3.5pins,completes100timeaftermonolithicintegratedcircuit'sT1tallyfunctioncountinghaveaninterrupttocompletethedistancethesurvey.（supposeswheelperimeteris1m,thentheHallsensorproduces100thepulsethentoexpressthateverytimevehicletravelingschedule0.1km,hascarriedonestablishmentaccordingtoactualsituationinprocedure）.Theautomobileshaftcouplingaccordingtothecirclespacinginsertingmagnetsteel,withHallthesensorintegrationchipA44Eexaminationandtheoutputpulse,HallsensorintegrationchipA44Ehasfunctionsandsoonsignalconversion,voltageamplification,reshapingoutput,toincreaseitsantijammingability,passesthrough74LS14afterthesignalshapingthetransmittedlightoccasionallysendsinP3again.5pins.Butinthiselectriccircuittopreventthedrivertomaketheshortcoming,mayusetheencryptionsensor'smethod,firstcounterimpulseencryptionwhichgatherstotheHallsensor,causesthecostpulsebythescrambledtextwaytransmission,finallythedecipheristhedefiniteorderspulse,transmitstothemileagefaremetercost.Inpasswordsensor,whattheencryptiontransmitstothedecoderisthepassword,whentheencryptionandthedecipherinherentpasswordisthesame,decoderonlythentomileagefaremetertransmissioncounterimpulse,mileagefaremeteronlythencost,therefore,thepasswordsensorenhancedthemileagefaremetercostreliability,theillegaltaxidriverisalsounabletomakethefaretoincrease,simultaneouslythedrivercannotreplacethemileagefaremetersensorsecretly,realizedthemileagefaremetertounifytheinstallment,theserviceandtheannualinspectionglobaladministrationbytheNationalMeasurementDepartment.

2.2.3　Thedatademonstratedthepart,becausethedesignrequirementshavetheunitprice

（2）,themidwaystandbyperiod

（2）,thedistance（4）,theamount（4）todemonstratethattheclock（4）output,ifusesLCDliquidcrystaldisplay,inisawayfromoutsidescreen1mtobeunabletoseeclearlythedata,moreovercannotsatisfytherequestindaytimeitscontrastgradient,thereforeuses16highluminanceLtheEDnixietubedemonstration.Whenisthespatialvehiclehour,fortheelectricitysaving,onlythetelltime,isforthedriverexaminedthatthetimeprovidestheconvenience,whenthedriverwantstoinquiretheformertransportbusinessdata,pressesinquiresthekeytobepossibletoprovidethedemonstration;Whenpassengerdemonstratestransportbusinesstheunitprice,thestandbyperiod,thedistance,theamountandtheclock.DemonstratedthatdriverMAX7219hastheserialinput/paralleloutputfunction,mostmaydemonstratethat8LtheEDnixietube,simultaneouslyhasmaytobrightness,thedecodingway,thedemonstrationfigure,theworkingpatterncarryontheprogramming,verysatisfiedlong-distancerangedatademonstration;MAX7219selectstheserialaddressingmethod,enterstheDINend16serialbitdata,ineachCLKrisealongismovedtotheinternal16shiftregister,intheLOADend'srisealongislockedsavestocontrolsintheregisterandthedataregister,receivesfirstishighestorderD15,uses89S52inthiselectriccircuitP1.5arethedatamouth,P1.6aretheLOADend,P1.7lastbellend.Becausemustdemonstrate16LED,thereforeuses2pieceofMAX7219levelcompanytocarryontheactuationtodemonstrate,previouspieceofdataoutletandnextpieceofdatainputportconnectionuse.ButonmaincircuitboardTA89S52outputDIN,LOAD,CLKsignalwilltransmitindisplaypanel'sprocesspossiblyasaresulttodisturbhasthedistortion,willthereforecarryonthereshapingthenagaintransmittedlightpartneronthedisplaypanelcircuitwafertothese3signals,willpreventthephenomenonoccurrencewhichthedatawrongthedemonstrationordidnotdemonstrate.

2.2.4　Clockpart

Themileagefaremeterwhenthe