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| Nov 8, 2009 |
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IT Systems >
Business Systems >
Security Systems >
Identification Systems >
AIDC >
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ALSO CALLED: Dedicated Short Range Communication, DSRC, R F I D, Radio Frequency Identification, and RFID Systems
DEFINITION: RFID (radio frequency identification) is a technology that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency (RF) portion of the electromagnetic spectrum to uniquely identify an object, animal, or person. RFID is coming into increasing use in industry as an alternative to the bar code. The advantage of RFID is that it does not require direct contact or line-of-sight
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RFID Multimedia
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RFID DEFINITION (continued): … scanning. An RFID system consists of three components: an antenna and transceiver (often combined into one reader) and a transponder (the tag). 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 or as complicated as interfacing with a database to carry out a monetary transaction. Low-frequency RFID systems (30 KHz to 500 KHz) have short transmission ranges … RFID definition sponsored by SearchManufacturingERP.com, powered by WhatIs.com an online computer dictionary
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