电子信息工程专业红外遥控系统大学毕业论文英文文献翻译及原文Word格式.docx

电子信息工程专业红外遥控系统大学毕业论文英文文献翻译及原文Word格式.docx

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红外遥控系统

文献、资料英文题目：

InfraredRemoteControlSystem

文献、资料来源：

文献、资料发表（出版）日期：

院（部）：

专业：

电子信息工程

班级：

姓名：

学号：

指导教师：

翻译日期：

2017.02.14

Abstract

Redoutsidedatacorrespondencethetechniquebecurrentlywithinthescopeofworlddriveextensiveusageofakindofwirelessconjunctiontechnique,drivenumeroushardwareandsoftwareplatformsupport.Redoutsidethetransceiverproducthavecostlow,smallscaledturn,thebaudratebequick,pointtopointSSL,befreefromelectromagnetismthousandRaosetc.characteristics,canrealizationinformationatdissimilarityoftheproductfast,convenience,safelyexchangeandtransmission,atshortdistancewirelessdeliveraspecttoownveryobviousofadvantage.Alongwithredoutsidethedatadeliveratechniquemoreandmoremature,thecostdescend,redoutsidethetransceivernecessarilywillgetattheshortdistancecommunicationrealmmoreextensiveofapplication.

Thepurposethatdesignthissystemistransmitcustomer’soperationinformationwithinfraredraysfortransmitmedia,thendemodulateoriginalsignalwithreceivecircuit.Itusecodingchiptomodulatesignalandusedecodingchiptodemodulatesignal.ThecodingchipisPT2262anddecodingchipisPT2272.BothchipsaremadeinTaiwan.MainworkprincipleisthatweprovidetoinputtheinformationforthePT2262withcodingkeyboard.TheinputinformationwascodedbyPT2262andloadingtohighfrequentloadwavewhosefrequentis38kHz,thenmodulateinfraredtransmitdioxideandradiatespaceoutsidewhenitattianenoughpower.Thereceivecircuitreceivethesignalanddemodulateoriginalinformation.TheoriginalsignalwasdecodedbyPT2272,soastodrivesomecircuittoaccomplishcustomer’soperationdemand.

Keywords:

Infraredray；

Code；

Decoding；

LM386；

Redoutsidetransceiver

1Introduction

1.1researchthebackgroundandsignificance

InfraredDataCommunicationTechnologyistheworldwideuseofawirelessconnectiontechnology,bythemanyhardwareandsoftwareplatformssupported.Isadatathroughelectricalpulsesandinfraredopticalpulseswitchbetweenthewirelessdatatransceivertechnology.

Infraredtransceiverproductswithlowcost,small,fasttransmissionrate,thepoint-to-pointtransmissionsecurity,notsubjecttoelectromagneticinterferenceandothercharacteristicsthatcanbeachievedbetweenthedifferentproducts,rapid,convenientandsafeexchangeandtransmission,Inshortdistancewirelesstransmissionhaveaverydistinctadvantage.

Infraredtransceiverproductsintheportableproductofagreatrole.Atpresent,theworld'

s150millionpieceofequipmentusedinfraredtechnologyinelectronicproductsandindustrialequipment.medicalequipmentandotherfieldswidelyused.Forexample,95%ofthenotebookcomputersontheinstallationofinfraredtransceiverinterfacethemajorityofthecellphoneisalsotheallocationofinfraredtransceiverinterface.Withtheexchangeofquantitativedata,infrareddatacommunicationswillenablecellphonedatatransmissionmoreconvenient.Withinfrareddatatransmissiontechnologymatures,perfect,lowcosts,InfraredTransceiverinshortdistancecommunicationswillbemorewidelyapplied.

ThischapterfirstdescribestheinfraredtransceiverICdesignissuestothebackgroundandsignificance.thenbriefedtheinfrareddatacommunicationstechnologyfeaturesandapplications,andinfraredtransceiverproductcharacteristics,domesticandinternationalsituationanddevelopmenttrendofthelastunderinfraredremotetransceiversysteminpracticalapplicationtoestablishataskofdesignorientation.

1.2InfraredRemoteControlTransceiverSystem

Infraredremotecontrolsystemisdividedintosingle-channelandmulti-channelremotecontrol.Onlyacommandsignaltransmissionchannel,calledsingle-channelremotecontrolsystem;

withmorethantwoinstructionssignaltransmissionchannelknownasamulti-channelremotecontrolsystem.Relativelysimplesingle-channelremotecontrol,ingeneral,onlyalauncherdirectiveKeyreceiversandonlyonecircuitimplementation.Whileinthereceivingcircuittoaddmorestablememorycircuitsthatcanbeactivatedcommandstolaunchanumberofkey,sothatthereceivercircuitmultistablememorycircuitrepeatedlytochangethestate,torealizemanyofthefunctionalcontrol,Butsuchastateofchangeistheorder.Ifwearetoachieveanarbitrarycontrol,resorttotheuseofmulti-channelremotecontrolsystem.Multi-channelremotecontrolcanberealizedbytheobjectofarbitrarymulti-functionremotecontrol.Asforthechoiceofseveralroutesandwhatcontrolmethods,accordingtotheactualsituation（suchasobject,operationalrequirementsandcostaccounting,etc.）todecide.Generalinfraredremotetransceiversystembyinfraredremotecontroltransmittersignalcoding,infraredremotecontrolsignalreceiversanddecoders（ordecoderchipMCU）andtheexternalcircuitconsistingofthreeparts.Signaltransmitterremotecontrolcodeusedtogeneratepulsesofinfraredemission-drivenoutputinfraredremotecontrolsignal,receivercompletionoftheremotecontrolsignalamplificationanddetection,plasticanddemodulationencodingpulse.Infraredremotecontrolcodedpulseisgoingtoobtainacontinuousserialbinarycode,andformostoftheinfraredtransceiversystem,Thisserialcodeasmicro-controlleroftheremotecontrolinputsignalsfromtheinternalCPUcompletionoftheremotecontrolinstructiondecoder,ontheotherinfraredremotecontroltransceivers,thedesignersofelectronicproducts,Theinternalmicro-controlleroftheremotecontroldecoderdirectiveisnotaccessible.Therefore,peopleareusinginfraredencoder/decoderchipandmicrocontrollerdevelopedvariousgenericinfraredremotetransceiversystem,Invariousequipmentinfraredsignalsbetweenthetransceiver.

Remotetransceiversystemgenerallytransmittersandreceiversiscomposedoftwoparts.Launchersfromthegeneraldirectionkeys,codedinstructionscircuitmodulationcircuit,drivingcircuit,firingcircuitofseveralparts.Whenpressedakey,thedirectivecodingcircuit,inthecorrespondinginstructionsencodedsignal,theencodersignaltothecarriermodulation,Drivenbythepoweramplifiercircuitaftercircuitfiredfromthefieldafterfiringinstructionscodedmodulationsignals.Generalreceiverbythereceivingcircuit,theamplifiercircuit,demodulationcircuits,instructiondecodercircuit,drivingcircuit,circuitimplementationofseveralparts.ReceivingCircuitwilllaunchvehicleshavebeencodedmodulationsignalreceivinginstructionsfrom,andtoenlargeevacuationdemodulationcircuit.Demodulationcircuitwillhavethecodingmodulationsignaldemodulation,namely,reductionofsignalcoding.Theinstructiondecodertotheencodersignaldecoding,Drivenbythefinalcircuittodrivetheimplementationofvariousinstructionscircuittocontroltheoperation.

1.3infraredremotecontroltransceiverproductprofiles

1.3.1infraredremotecontroltransceiverproductstructureandtype

Currentlyinfraredtransceiverinaccordancewiththemodeoftransmissionrateandcanbedividedintofourcategories:

Serialmode,thehighestrateof115.2Kbps;

medium-speedmodel:

thehighestrateof0.567Mbpsand1.152Mbps;

High-speedmode:

Themaximumrateof16Mbps.

Alsoaccordingtothesizechippowerconsumptioncanbedividedintolow-powerconsumptionandstandardtwocategories,low-powertypenormallyused3Vpowersupply,transmissiondistanceclosertoabout0-30cm,whichiscommonlyusedstandard5Vpowersupply,transmissiondistanceawayatleast1mabove.

1.3.2infraredremotecontroltransmittersofthestatusquoathomeandabroad

Infraredcommunicationtechnologyinthedevelopmentstageandthereareseveralinfraredcommunicationstandards,betweendifferentstandardsforinfraredequipmentcannotinfraredcommunication.Tohavealltheinfraredequipmenttointeroperabilityin1993bymorethan20largemanufacturersinitiatedtheestablishmentofanInfraredDataAssociation（IRDA）unifiedtheinfraredcommunicationstandards,whichiscurrentlywidelyusedininfrareddatacommunicationprotocolsandstandards,alsoknownastheIRDAstandard.

Since1993IRDAsincetheestablishmentoftheInfraredDataAssociationmembershavedevelopedtomorethan150.IRDAstandardsoftheindustryhasbeenwidelyrecognizedandsupported.Hasbeendevelopedwiththeinfraredcommunicationsequipmenthavebeenasmanyas100species.IRmodule,installedcapacityhasreached150millionsets.AlthoughthereisalsoashortdistancewirelessBluetoothtechnology,Butininfraredcommunicationtechnologylowcostandbroadcompatibilityadvantages,Infrareddatacommunicationinthefuturewillstillbeaverylongtimeinherentshort-rangewirelessdatacommunicationsfieldsplayanimportantrole.

1.3.3InfraredTransceiverproductdevelopmenttrend

Invariousinfraredtransceiverproducts,althoughthetransmissionrate,transmissiondistanceandothercharacteristics,Butinfraredtransceiverproductshasbeentowardsimprovingthetransmissionrate,increasethetransmissiondistanceandlowerpowerconsumption,expandinglaunchreceptionangleofdevelopment.Inparticular,asthetechnologydevelopmentandmaturity,themeansoftransmissionismovinginthedirectionofpoint-to-multipoint.Thereforeinfraredremotecontroltransceiverproductshavebroaderprospectsfordevelopment.

2Infraredcommunicationofknowledge

2.1infraredrayfoundationknowledge

2.1.1infraredoutlined

Infraredisactuallyakindofelectromagneticwave.Fromt