红外遥控系统-毕业论文外文翻译.docx

红外遥控系统-毕业论文外文翻译.docx

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成都信息工程学院通信工程学院

本科毕业论文设计

英文→中文翻译

论文题目

红外光通信系统设计

姓名

专业

通信工程

班级

学号

指导教师

日期

2014年02月27日

英文原件内容

IntroductionInfraredremotecontrolsystemismainlycomposedbytheremotecontroltransmitter,integratedreceiverhead,microcontroller,interfacecircuitshowninFigure1.Theremotecontrolisusedtogeneratetheremoteencoderpulsedriveinfraredemissioncontroloutputoftheinfraredremotecontrolsignal,theremotecontrolreceiverontheremotecontrolsignalamplification,detection,shaping,demodulationremoteencoderpulse.Theremotecontrolencoderpulseisaserialbinarycodefortheinfraredremotecontrolsystem,theserialcodeinputtothemicrocontroller,itsinternalCPUinstructiondecodeontheremotecontrol,andperformremotecontrolfunctions.Usingtheremotecontrolastheinputofthecontrolsystem,weneedtoaddressthefollowingkeyquestions:

howtoreceivetheinfraredremotecontrolsignal;howtoidentifytheinfraredremotecontrolsignal,anddecodingsoftwaredesign,designofcontrolprocedures.

SCMhistorySCMwasbornin1971,hasgonethroughthreemajorphasesoftheSCM,theMCUSoC.Itconsistsofcomputingdevice,controller,memory,inputoutputdevices.Itsfullnameisasingle-chipmicrocomputer,istypicalofembeddedmicro-controller（MicrocontrollerUnit）,thecommonlyusedlettersoftheabbreviationMCUsingle-chip,anditwasfirstusedinthefieldofindustrialcontrol.Mastermicrocontrollertechnologytoenablemorepeopleintheindustry,students,enthusiasts,productdevelopers,thequestionaroseduetotheextensiveapplicationofSCMinthefieldofindustrialcontrol,microcontrollerdevelopmentboard,themorefamoussuchase-DZR-01Amicrocontrollerdevelopmentboard.MicrocontrollerchipdedicatedprocessordevelopedfromtheCPU.ThefirstdesignconceptbyalargenumberofperipheralsandCPUintegratedinasinglechip,thecomputersystemissmaller,moreeasilyintegratedintocomplexandrequirestrictcontrolequipmentonthevolume.Single-chip,alsoknownassingle-chipmicrocontroller,itisnotthecompletionofalogicalfunctionofthechip,butacomputersystemintegratedontoonechip.Equivalenttoamini-computerandcomputer,microcontrolleronlythelackofI/Odevices.SCMrelyontheprogramisrunning,andcanbemodified.Differentfunctionsthroughdifferentprograms,especiallythespecialuniquefunction,whichistheotherdevicesrequiremuchefforttodo,whileothersmakegreateffortsitisdifficulttodo.Anotverycomplexfunctionsusingpurehardwaretogetthewordsofthe1950sdeveloped74series,or60duringtheCD4000series,thecircuitmustbeabigPCBboard!

IfsuccessfulonthemarketintheUnitedStatesinthe1970sseriesofmicrocontrollers,theresultwillbedifferent!

JustbecauseaprogramwrittenbytheMCUthroughyoucanachievehighintelligence,highefficiencyandhighreliability!

Microcontrollerforcostsensitive,soaccountingforthedominanceofthesoftwareorthelowestlevelassemblylanguage,whichisthelowestlevelthanbinarymachinecodelanguage,sincesuchlow-levelwhyuseit?

Alotofhigh-levellanguagehasreachedalevelofvisualprogramming,whynot?

Thereasonissimple,isthemicrocontrollerdoesnothaveahomecomputerastheCPU,alsonotashardasmassstoragedevices.Avisualhigh-levellanguagetowritesmallprogramsinsideevenifthereisonlyonebutton,willreachtensofKofsize!

NothingintermsofhomePC'sharddrive,butforSCMintermsofisnotacceptable.SCMintheutilizationofhardwareresourcesmustbehigh,sothecompilationoftheoriginalwhilestillinheavyuse.Thesamereason,ifthecomputergiant'soperatingsystemandapplicationsoftwaretogethomePCrunuptothehomePCcannotafford.

Itcanbesaidthatthetwentiethcenturyacrossthethree"power"eraoftheelectricalera,theelectronicageandhasnowenteredthecomputerage.However,suchacomputer,usuallyreferstoapersonalcomputer,orPC.Itisbythehost,keyboard,monitor,andsoon.Anothertypeofcomputer,nothowmostpeoplearefamiliarwith.Thiscomputerissmarttogiveavarietyofmechanicalmicrocontroller（alsoknownasmicro-controller）.Thenamesuggests,thesmallestofthiscomputersystemusingonlyoneICtomakeasimplecalculationandcontrol.Becauseofitssmall,usuallyhiddeninacontrolledmechanical"stomach".Throughoutthedevice,itplaysliketheroleofthehumanmind,itiswrong,theentiredevicewasparalyzed.Now,thissinglechipfieldofusehasaverywide,suchassmartmeters,real-timeindustrialcontrol,communicationsequipment,navigationsystems,homeappliancesandsoon.AvarietyofproductsusingtheSCM,youcanplaytheeffectofproductupgrades,oftenprecededbyanadjectiveinfrontoftheproductname-"smart",suchassmartwashingmachines.Somefactoriesorotheramateurelectronicsdeveloperstoengageinoutofcertainproducts,notthecircuitistoocomplicated,toosimpleandcaneasilybeimitation.Thereasonmaybestuckintheproductdoesnotuseamicrocontrollerorotherprogrammablelogicdevices.Microcontrollerapplications

MCUtoinfiltrateallareasoflife,almostdifficulttofindwhichareasofthemicrocontrollertrail.Navigationdeviceofthemissile,aircraft,variousinstrumentcontrol,computernetworkcommunicationsanddatatransmission,industrialautomationandprocessreal-timecontrolanddataprocessing,widelyusedsmartcardIC,civilluxurycarsecuritysystem,VCR,cameras,thecontrolofautomaticwashingmachines,andprogram-controlledtoys,electronicpets,etc.,whichareinseparablefromthemicrocontroller.Nottomentionthefieldofautomaticcontrol,robotics,intelligentinstruments,medicalequipment.Therefore,thelearning,developmentandapplicationoftheSCMwillcreateanumberofcomputerapplicationsandintelligentcontrolofthescientists,engineers.

Themicrocontrolleriswidelyusedinthefieldofinstrumentation,homeappliances,medicalequipment,aerospace,equipmentfortheintelligentmanagementandprocesscontrol,generallycanbedividedintothefollowingcategories:

1.Onsmartinstrumentation

Themicrocontrollerhasasmallsize,lowpowerconsumption,andcontrolfunctions,andexpansionoftheadvantagesofflexibility,miniaturizationandeasytouse,widelyusedininstrumentation,combinedwithdifferenttypesofsensorscanberealizedsuchasvoltage,power,frequency,humidity,temperature,flow,speed,thickness,angle,length,hardness,elements,pressureandotherphysicalmeasurement.SCMmakesthedigitalinstrumentation,intelligent,miniaturizationandmorepowerfulfunctionthantheuseofelectronicordigitalcircuits.Suchasprecisionmeasuringequipment（powermeter,oscilloscope,analyzer）.

2.Inindustrialcontrolapplications

MCUcanconstitutevariousformsofcontrolsystems,dataacquisitionsystems.Suchasfactoryassemblylineofintelligentpipe

3.inHouseholdAppliances

ItcanbesaidofhomeappliancesisbasicallyusingtheMCUcontrol,electricricepraise,washingmachines,refrigerators,airconditioners,colorTVs,andotheraudiovideoequipment,thentheelectronicweighingequipment,varied,omnipresent.4.inthefieldofcomputernetworksandcommunication

Modernmicrocontrollerwithuniversalcommunicationinterfacecanbeeasilyandcomputerdatacommunications,providesexcellentmaterialforuseincomputernetworksandcommunicationdevices,communicationequipmentbasicallytotheMCUintelligentcontrolfromthemobilephones,telephones,smallprogram-controlledswitchboards,buildingautomatedcommunicationscallsystems,trainradiocommunications,andthentotheubiquitousmobilephonesintheirdailywork,trunkingmobilecommunicationradios.

5.Chipinthefieldofmedicalequipment

Themicrocontrollerusesinmedicaldevicesisalsoquiteextensive,suchasmedicalventilator,avarietyofanalyzers,monitors,ultrasounddiagnosticequipmentandhospitalbedscallsystemandsoon.

6.Modularapplicationsinavarietyoflargeappliances

Somededicatedmicrocontrollerdesignedforspecificfunctions,modularapplicationsinavarietyofcircuit,withoutrequiringtheuseofpersonneltounderstanditsinternalstructure.Integratedsingle-chip,suchasmusic,seeminglysimplefunction,miniaturepureelectronicchip（asopposedtotheprincipleofthetapedrive）,youneedacomplexsimilartotheprincipleofthecomputer.Suchas:

themusicsignalindigitalforminmemory（similartotheROM）,readbythemicrocontrollerintoanalogmusicsignal（similartothesoundcard）.

Inlargecircuits,thismodularapplicationgreatlyreducethesize,simplifyingthecircuit,reducingthedamage,errorrate,isalsoconvenienttoreplace.7.Chipinthefieldofautomotiveequipment

Themicrocontrolleriswidelyusedinautomotiveelectronics,suchasautomotiveenginecontrollers,intelligentelectroniccontrollerbasedonCANbusautomotiveengine,GPSnavigationsystem,absanti-locksystems,brakingsystems,etc..Inaddition,themicrocontrollerbusiness,finance,scientificresearch,education,defense,aerospaceandotherfieldshasaverywiderangeofapplications,microcontrollerdevelopmentprospectsareveryobjective.

Speakingingeneralterms:

theMCU'ssmallsize,lightweight,inexpensive,andprovidefavorableconditionsforlearning,applicationanddevelopment.Atthesametime,learningtousethemicrocontrolleristhebestchoicefortheunderstandingofcomputertheoryandstructure.SCMisthebestchoiceforpeopletostudyandapplicationofrelatedtechnologies.

MasterchipAT89S51

TheAT89S51ATMELCorporationintheUnitedStateslow-power,high-performanceCMOS8bitmicrocontroller,on-chipcontaining4kbytesofsystemprogrammingofflashread-onlyprogrammemory,thedev