1. ZHENG Kailin132502216 October 2014

2. ContentsIntroductionof RFIDApplicationsSurveyResultsFuturedevelopmentandopportunitiesConclusion 3. RFIDRFID = Radio Frequency IdentificationElectronic labeling and wireless identification ofobjects using radio frequencyTag carries with its informationa serial numberModel numberColor or any other imaginable dataWhen these tags pass through a field generated by acompatible reader, they transmit this informationback to the reader, thereby identifying the object 4. RFID componentsA basic RFID system consists of these components:A programmable RFID tag/inlay for storing item data;Consisting of an RFID chip for data storagean antenna to facilitate communication with the RFID chipA reader/antenna system to interrogate the RFIDinlayApplication software and a host computer system 5. RFID TagThe RFID tag consists of an integrated circuit (IC)embedded in a thin film medium.Information stored in the memory of the RFID chip istransmitted by the antenna circuit embedded in theRFID inlay via radio frequencies, to an RFID reader3 typesPassiveSemi-passiveActive 6. Types of RFID TagsActive Tags Use a battery communicate overdistances of severalmetersSemi-passive Tags Contain built-inbatteries to powerthe chips circuitry,resist interferenceand circumvent alack of power fromthe reader signal dueto long distance. They are differentfrom active tags inthat they onlytransmit data at thetime a response isreceivedPassive Tags Derive their powerfrom the fieldgenerated by thereader without having anactive transmitter totransfer theinformation stored 7. ApplicationsFrequency Appx. Read Range Data Speed Cost ofTagsApplicationLow Frequency (125kHz)