RFID

Description
Transmitting in the kilohertz, megahertz and gigahertz ranges, tags may be battery-powered or derive their power from the RF waves coming from the reader. Depending on the type of tag and application, they can be read at a varying range of distances.

An RFID system consists of three components: an antenna and transceiver (often combined into one reader) and a transponder (the tag). (RFID SYSTEM) The antenna uses radio frequency waves to transmit a signal that activates the transponder. When activated, the tag transmits data back to the antenna. The data is used to notify a programmable logic controller that an action should occur. The action could be as simple as raising an access gate

Specific examples
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Ibrayeva Anel
[|RFID - Technology Video]

Resources

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