1. 1. RFID APPLICATIONLi Fung Tsing1221384510/18/2012
2. 2. Introduction Future Applications development of SIRISurveyConclusionandresults opportunities
3. 3. RFID RFID = Radio Frequency Identification Electronic labeling and wireless identification of objectsusing radio frequency Tag carries with its information a serial number Model number Color or any other imaginable data When these tags pass through a field generated by a compatible reader, they transmit this information back to the reader, thereby identifying the object
4. 4. RFID components A basic RFID system consists of these components: A programmable RFID tag/inlay for storing item data; Consisting of an RFID chip for data storage an antenna to facilitate communication with the RFID chip A reader/antenna system to interrogate the RFID inlay Application software and a host computer system
5. 5. RFID Tag The 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 the RFIDinlay via radio frequencies, to an RFID reader 3 types Passive Semi-passive Active
6. 6. Type of RFID TagsActive Tags Semi-passive TagsPassive Tags Use a battery Contain built-in Derive their power communicate over batteries to powerfrom the fielddistances of the chips circuitry, generated by theseveral meters resist interference reader and circumvent a without having an lack of power fromactive transmitter the reader signal to transfer the due to long information stored distance. They are different from active tags in that they only transmit data at the time a response is received
7. 7. Frequency of RFID tags in differentapplicationsFrequency Appx. Read Range Data Speed Cost of ApplicationTagsLow Frequency