Table of content

Group 1Ng Wing Yiu, Yoyo (10000577)Chan Wai Po, Ball (10000623)Hui Yi Yuk, Ken (11001542)Ip Kwan Yuen, Issac (09003495)

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ISEM 3410 Telecommunications and Networking in Business

RFID and its applications 1Table of Content21. Background of RFID 2. Concepts3. Advantages and disadvantages of RFID 4. Application of RFID5. Further Development

Background of RFID1. Background of RFID (1/4)Basic concept behind RFID is same as Mirror-Sunlight-Reflection theory Invented in 1948 by Harry StockmanInitial application was during World War II-The United Kingdom used RFID devices to distinguish returning English airplanes from inbound German onesCommercial Operation begun from 1960s

1. Background of RFID (2/4)5RFID = Radio-Frequency IdentificationBriefly the RF stand for radio-frequency and ID means identifier that allows an item to be identified, accessed, stored, reprogrammed and communicated by using radio waves The acronym refers to small electronic devices that consist of a small chip and an antenna. The chip typically is capable of carrying 2,000 bytes of data or less.

56Manufacturing and Processing Supply chain management Security Controlling access to buildingPayment systemsLocation Tracking Retail

1. Background of RFID (3/4)

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RFID advantages over bar-codes7No line of sight required for readingMultiple items can be read with a single scanEach tag can carry a lot of data (read/write)Individual items identified and not just the categoryPassive tags have a virtually unlimited lifetimeActive tags can be read from great distancesCan be combined with barcode technology

1. Background of RFID (4/4)

7Concept of RFIDBasic Components of RFID

RFID Tags(or Transponders)

(or Interrogator)RFID Architecture10TagsReaderGatewayDatabaseDatabase

ApplicationUser InterfaceBackendFig.1. A General Overview of RFID ArchitectureScanned2. Concept of RFID (1/7)Firstly items-tag are scanned by reader;Secondly in backend transmitted data coming through antenna (RF-wave) are being recognized by RFID-based system PC. It acts as a middleware communication gateway among items, reader and system database;Finally it filters out and store data in RFID-databases for checking the data fault and relevant operation.Key component - tag11

1. Chips: Hold information about physical object. 2. Concept of RFID (2/7)2. Antenna: Transmit radio signal3. Package: Encases the Chips and Antenna, so that can be attached to the physical object.Are All Tags The Same? Three Basic Types:Active Battery powered memory, radio & circuitryLong Read Range (300 feet)Active Backscatter (Semi-active) Reader activates tag, but battery powers memory and circuitryMedium Read Range (10 - 50 feet)Passive Backscatter Reader poweredShorter Read Range (4 inches - 18 feet)

2. Concept of RFID (3/7)122. Concept of RFID (4/7)RFID Tag Operational Frequencies BandFrequencyLF30 300 kHzHF3 30MHzUHF300MHz 3GHzMicrowave2 30GHzTypical RFID frequencies 125 134kHz13.56MHz865 956MHz2.45GHzRead range