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Presenter:MiZhiqiangHunanModernLogisticsCollegeAnalysisof2.4GMicrowaveRFIDTagDataStructureContents1Function2Protocol01FunctionThetypesoftagsthatcanbereadbythereadercanbeconfiguredtoread3.8mmtags,OrientalPearltagsandtemperatureandhumiditytags.WecanusePCsoftwaretoconfigurethetypesoftags.Note:Accordingtothefunctionrequirements,“filterdecaytimeinterval”means“typeoftagbeingread”0——Sensortag1——OrientalPearldemolitionalarmtag2——3.8mmtagMorethan2,read3.8mmtag02Protocol1.3.8mmTagProtocol(FilterDecayTimeInterval:2)1.CardDataBaotouReadnumberingheadDatatypeDatalengthASC1ASC2ASC3ASC4ASC5ASC6Check0x02NO0x010X18Maximumbyterepresentationofcardnumber:splitintohighandlowhalfbytesandexpressedbyASCIISubhighbyterepresentationofcardnumber:sametomaximumbyteLowestbyterepresentationofcardnumber:sametomaximumbyteXOR0x12isexpressedas:0x31,0x32Note:Thehighestbyteinthethree-bytecardnumberisthepowermarkbitofthecard(0meanssufficientpower,1meansinsufficientpower).Thisbitshouldbeignoredwhencalculatingthespecificcardnumber.2:HeartBeatDataInthecard-freestate,heartbeatpacketsaresenteveryfiveseconds.Inordertokeepthesamelengthasthecarddata,theformatisdefinedasfollows:BaotouReadnumberingheadDatatypeDatalengthCheck0x02NO0x020x05XOR2.OrientalPearlTagProtocol(FilterDecayTimeInterval:1)BaotouDataframeheader4byteNumberDatatypeDatalengthCardnumber3byteExciternumber2byteAntennanumberSignalintensityXORcheck02AA55A55ANO0110highmiddlelowNONONONONO02ProtocolInformationdescriptionBaotou(1byte):Fixedvalue0x02Dataframeheader(4byte):Fixedvalue0xAA0x550xA50x5ANumber(1byte):numbersaredeterminedbyreadercodingDatatype(1byte):Fixedvalue0x01:cardnumberdata0x02:heartbeatpacketDatalength(1byte):Fixedvalue0x1002ProtocolCardnumberinformation(3byte):Thevalueisdeterminedbythecardnumberitself.TheBIT7withhighbytenumberrepresentspower,1:lowpower.TheBIT6withhighbytenumberrepresentskeyalarmmark,1:keyalarm.TheBIT5withhighbytenumberrepresentsIncentivemarker,1:Beinspired.ExciterNumber(2byte):DecidedbytheExciteritself,whennumbered0x00,0x00,indicatethenumberoftheexciterinthecardSwipe.Antennanumber(1byte)

:sameasantennaoutputnumberonPCBSignalstrength

(1byte)

:signalstrengthreceivedbyas393302ProtocolBaotouDataframeheader4byteNumberDatatypeDatalengthCardnumber3byteExciternumber2byteAntennanumberSignalintensityXORcheck02AA55A55ANO021000000000000000NOXORcheck(1byte):ObtainedbyXORoperationsoftheabove15bytesHeartbeatpacket:Note:Thecardnumbercannotbereadin5s,sendaheartbeatpacketdata02ProtocolProtocolbetweenElectronicTagand2.4GReader:1)Read-to-CardProtocolBaotouReadnumberingheadDatatypeDatalengthASC1ASC2ASC3ASC4ASC5ASC6ASC7ASC8ASC9ASC10ASC11ASC12ASC13ASC14Check0x02NO0x010X13Maximumbyterepresentationofcardnumber:splitintohighandlowhalfbytesandexpressedbyASCIISubhighbyterepresentationofcardnumber:sametomaximumbyteLowestbyterepresentationofcardnumber:sametomaximumbyteHumidityhighbyterepresentation::splitintohighandlowhalfbytesandexpressedbyASCIIHumiditylowbyterepresentation:sametohumidityIDhighbytesTemperaturehighbyterepresentation::splitintohighandlowhalfbytesandexpressedbyASCIITemperaturelowbyterepresentation:sametoTemperatureIDhighbytesXOR0x12isexpressedas:0x31,0x323.TemperatureandHumidityTagProtocol(FilterDecayTimeInterval:0)02ProtocolNote:XORforallpreviousbytes,readnumberheaderfo

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