What RFID Means
Radio-frequency identification (RFID) technology is used to remotely track and identify objects. For example, using RFID, it is possible to inventory stock in a warehouse without having to handle the items physically.
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Basic Components
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RFID reader RFID requires two major components. A tag that is placed on the object and a device that can remotely read the information stored in the tag. Unlike bar-code scanning technology, the RFID reader need not be within sight of the tag.
RFID Tags
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RFID tag RFID tags consist of an integrated circuit for storing and processing information and an antenna.
There are three types of RFID tags. Passive RFID tags rely on the receiver for power and cannot initiate communication with the receiver. Active RFID tags have their own power source and can initiate communication with the receiver. This gives them greater range and enables them to indicate their presence and location. Battery-assisted passive (BAP) RFID tags contain a battery that gives them greater range than passive RFID tags. However, like passive RFID tags, they cannot initiate communication with the reader.
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Uses of RFID Technology
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RFID technology is finding increasing use in inventory management. RFID technology is being used in a growing number of application areas. For example, transit and toll passes, retail sales, inventory management and livestock identification.
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References
Resources
- Photo Credit safety trhough rfid image by Albert Lozano from Fotolia.com On Board Diagnosis Connector image by Albert Lozano from Fotolia.com rfid tags image by Albert Lozano from Fotolia.com Depot image by Czintos Ã--dön from Fotolia.com
