2023學年完整公開課版CommonRFIDTagsandApplications（2022新）

Presenter:MiZhiqiangHunanModernLogisticsCollegeCommonRFIDTagsandApplicationsActive/passivetags1Signalfrequencyband4Classificationofpowersources2Dataread/writetype3ContentsRFIDtagisthekeytocracktheautomaticidentificationofradiofrequency.WewillmainlyintroducethecommonRFIDtagsandapplications.TheyareshowninTable1-3.SerialnumberclassifynamedMainfeaturesanduses1PowersupplyformActive/passive/semi-activeActive:Highcost,longdistance,largeweightandvolumePassive:Lowcost,closedistance,smallweightandvolume2ModulationmodeActive/semi-active/passiveTheactivetagactivelytransmitsdatawithitsownRFenergy.Inthecaseofobstacles,itonlyneedstocrosstheobstacleonce.Therefore,theactivetagismainlyusedinanRFIDsystemwithobstacles,andthedistancecanbemorethan30cm.PassiveRFIDtagsmustusethecarrierofthereadertomodulatetheirownsignals.Inthecaseofobstacles,theenergyofthereadermustcomeandgothroughtheobstacletwice.3WorkingfrequencyLF/HF/UHF/VHFDetailedfeaturescanbefoundinthetypeofRFID(classifiedbyfrequency)4Read-writemodeRO/RW/WORMMultipleread-writetagshavethehighestcostandaregenerallyusedinsystemsthatrequirerandomreadingandwriting,suchaschargingsystems;

Tagsthatarewrittenonceandreadmultipletimesarelowincostandflexibleinuse,andmostofthemareusedingeneralproductionmanagement,processcontrol,logistics,andsupplychainmanagementsystems;

Read-onlytagsaretagsthatwriterelevantdataandaresolidified,sothecostisthehighestandthedataisthesafest.Itisgenerallyusedformassproductionofanti-counterfeitingmanagement.5CommunicationtimingRTF/TTFRTFReaderactivelywake-uptap-readerfirsttypeTTFintroduceitself-Typeoftagfirsttype00Introduction1.ActiveRFIDtagsActiveRFIDtagsarepoweredbybuilt-inbatteries,anddifferenttagsusebatteriesofdifferentnumbersandshapes.TakeapartRFIDtagwithbuilt-indoublebuttonbattery01Active/passivetagsAdvantages:Longrange,thedistancebetweenactiveRFIDtagandRFIDreadercanreachtensofmeters,orevenhundredsofmeters.Disadvantages:Largevolume,highcost,limitedservicelifeofbattery.Theidealtargetofmanufactureris7-10years.However,duetothedifferenttimesofdailyuseandenvironment,itcanonlybeusedforseveralmonths,andsomecanbeusedformorethanfiveyearsinpracticalprojects.2.AdvantagesanddisadvantagesofactiveRFIDtags01Active/passivetags3.PassiveRFIDtagsThepassiveRFIDtagdoesnotcontainabattery,anditspowerisobtainedfromtheRFIDreader.WhenthepassiveRFIDtagisclosetotheRFIDreader,theantennaofthepassiveRFIDtagconvertsthereceivedelectromagneticwaveenergyintoelectricalenergy,activatesthechipintheRFIDtag,andsendsthedataintheRFIDchipout.01Active/passivetagsAdvantages:Smallsize,lightweight,lowcost,longlife,lifeguaranteedformorethan10years.Itismaintenance-free,andcanbemadeintothinsheetsorbucklesandotherdifferentshapes,appliedtodifferentenvironments.Disadvantages:Becausethereisnointernalpowersupply,thedistancebetweenpassiveRFIDtagandRFIDreaderislimited,usuallywithintensofcentimeters,andhighpowerRFIDreaderisrequired.4.AdvantagesanddisadvantagesofpassiveRFIDtags01Active/passivetags1.ActiveRFIDtagsActiveRFIDtagsactivelysenddatatotheoutsidebyrelyingonenergysourcessuchasbatteriesinstalledbythemselves.2.PassiveRFIDtags

PassiveRFIDtagsgetenergyfromtheelectromagneticwavesentbythereceivedRFIDreaderandthensenddataoutafteractivation,sothattheRFIDcanreadthedatasignal.3.Semi-activeRFIDTags

Thebatteryofsemi-activeRFIDtagitselfisonlyprovidedforthecircuitinthetag.Itdoesnotactivelysendoutdatasignals.WhenitreceivestheactivationoftheelectromagneticwavesentbytheRFIDreader,itsendsoutdatasignals.Classificationofpowersources0203Dataread/writetype1.Read-onlyRFIDtags2.Read-writeRFIDTags

Thecontentsofread-writeRFIDtagscanbereadorwrittenbyreadersintheidentificationprocess.Theyuserandomaccessmemory(RAM)orelectricallyerasableprogrammableread-onlymemory(EEROM).

Sometagshavetwoormorememorybanks.Readerscanprogramandwritecontenttodifferentmemorybanks.03Dataread/writetype04Signalfrequencyband

AccordingtotheworkingfrequencyoftheRFIDtag,itcanbedividedinto:Lowfrequency1Middle-Highfrequency2Highfrequency3Microwave41.Low-frequencyRFIDtagsCommonmainspecificationsare125KHzand135KHz.Theelectronictagsareallpassiveinductivecoupling,andthereadingdistanceisabout10-20cm.Theadvantageisthatthetagcanemitsignalseffectivelywhenitisclosetometalorliquidobjects,unlikeotherhigh-frequencytags,inwhichcasethesignalswillbereflected.Thedisadvantagesareshortreadingdistance,inabilitytoreadmultiplevolumetagsatthesametimeandlowinformationcontent.Itcanbeusedinaccesscontrolsystem,animalchips,casinotokens,animalhusbandryorpetmanagement,laundry,caranti-theftdevicesandtoys.Lowtechnicalrequirements,accesscontrolwillbereplacedby13.56MHzMifare,andtheanimalchipmarketisalsomature.Therefore,itisnotrecommendedtodeveloptechnologyinthisfield.04Signalfrequencyband1.Low-frequencyRFIDtagsFigure1-22Low-frequencytags04Signalfrequencyband2.Middle-HighfrequencyRFIDtagsCommonmainspecificationis13.56MHz.ISO-14443AMifareandISO-15693;Theelectronictagsareallpassiveinductivecoupling,andthereadingdistanceisabout10-100cm.Theadvantagesarefasttransmissionspeedandmulti-tagidentification.Thedisadvantageisthattheenvironmentissensitivetointerference,andthereadingrateislowinmetalorhumidenvironment.Itcanbeusedinaccesscontrolsystem,travelcard,electronicwallet,bookmanagement,productmanagement,documentmanagement,stacktracking,electronicticket,luggagevolumetag.Thetechnologyisthemostmatureandwidelyusedandacceptedinthemarket.Therefore,itissuggestedthattechnologyandapplicationinthisfieldshouldbevigorouslydevelopedatthisstage.04SignalfrequencybandFigure1-23AccessControlandElectronicWallet(HighFrequencyIS0-14443Mifare)LearningRFID--CommonRFIDtagsandapplications04SignalfrequencybandHighfrequencyanti-counterfeitingmanagement:UsingthelatestRFIDpatentedtechnologyPersonalenrollmentdataorproductmanufacturerinformationcanberecordedWiththespecialreadingmechanism,allkindsofcounterfeitingcanbeeliminatedandtheanti-counterfeitingeffectcanbeeffectivelyachieved.2.Middle-HighfrequencyRFIDtag04SignalfrequencybandFigure1-24Highfrequencyanti-counterfeitingmanagement04Signalfrequencyband3.UltraHigh-frequencyRFIDtagsUltraHigh-frequencyUHF400MHz～1GHzCommonmainspecificationsare430～460MHz、860～960Mhz.ISO-18000、EPCGen2;Theelectronictagsareallpassiveantennaswhichcanbefabricatedbyetchingorprinting,sothecostislowandthereadingdistanceisabout5-6meters.Ithastheadvantagesoflongreadingdistance,fastinformationtransmissionrate,andlargenumberoftagscanbereadandidentifiedatthesametime,whichhasbecomethemainstreamofthemarket.Thedisadvantageisthattheapplicationofmetalsandliquidsisnotideal.Itisappliedtoairpassengerandbaggagemanagementsystem,shelfandpalletmanagement,shipmentmanagement,logi