Radio frequency identification

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Description

A security system that uses radio frequencies to monitor inventory locations. The radio frequency identification (RFID) system consists of transponder tags, a transmitter, and a receiver. Whenever the identification tags receive a designated signal from the transmitter, they each emit a specific preprogrammed radio frequency that can be detected by either stationary or portable (wand-type) receiver devices. RFID systems usually operate in the frequency range of 8-14 Megahertz. RFID systems provide non-line-of-sight reading and simultaneous reading of multiple items to locate and identify tagged items. Applications include taking inventory, monitoring circulation, registering movement, and finding missing materials.

Synonyms and Related Terms

radio-frequency identification; RFID; Checkpoint®, Ketec®; Performa®; Talking-Tag® [HELICON]