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RFID

Radio-frequency identification (RFID)

About[]

Radio-frequency identification (RFID) is the use of a tag applied to or attached onto a product, animal, or person for the purpose of identification and tracking using radio wave technology. Some tags can be read from several meters away and beyond the line of sight of the reader.

There are generally three types of RFID tags: active RFID tags, which contain a battery and can transmit signals autonomously, passive RFID tags, which have no battery and require an external source to provoke signal transmission, and battery assisted passive (BAP) RFID tags, which require an external source to wake up but have significant higher forward link capability providing greater range.

There are a variety of groups defining standards and regulating the use of RFID, including: International Organization for Standardization (ISO), International Electrotechnical Commission (IEC), ASTM International, DASH7 Alliance, EPCglobal. (Refer to Regulation and standardization below.)

RFID has many applications; for example, it is used in enterprise supply chain management to improve the efficiency of inventory tracking and management.

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thumb|300px|right|RFID - Technology Video

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