9. RFID Tag Attributes Active RFID Passive RFID Tag Power Source Internal to tag Energy transferred using RF from reader Tag Battery Yes No Required signal strength Very Low Very High Range Up to 100m Up to 3-5m, usually less Multi-tag reading 1000’s of tags recognized – up to 100mph Few hundred within 3m of reader Data Storage Up to 128 Kb or read/ write & search 128 bytes of read/write
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13. RFID API Software (Communicates with the RFID Reader) Customer-Specific Application Software Host Computer Host Memory Space Reader Antenna Application Program Interface (API) Application Program Interface (API) Components of an RFID System
14. Antenna Reader Firmware Customer’s MIS Host Application Software API TCP/IP Power ~ Asset Asset/Tag RFID System Components (block diagram) Tag Insert
40. RFID Journal rfidjournal.com InformationWeek informationweek.com RFID Weblog rfid-weblog.com Don’t Forget! “ RFID in the Supply Chain” 19 November 2004 Martin Center