frequency identification (RFID) is a method of remotely
storing and retrieving data using devices called RFID tags.
An RFID tag is a small object, such as an adhesive
sticker, that can be attached to or incorporated into a product.
RFID tags contain antennas to enable them to receive
and respond to radio-frequency queries from an RFID transceiver.
An RFID system may consist of
several components: tags, tag readers, tag programming stations,
circulation readers, sorting equipment, and tag inventory wands.
Security can be handled in two ways. Security gates can query the
ILS to determine its security status or the tag may contain a security
bit which would be turned on and off by circulation or self-check
The purpose of an RFID system is
to enable data to be transmitted by a portable device, called a
tag, which is read by an RFID reader and processed
according to the needs of a particular application. The data transmitted
by the tag may provide identification or location information, or
specifics about the product tagged, such as price, color, date of
purchase, etc. RFID quickly gained attention because
of its ability to track moving objects. As the technology is refined,
more pervasive-and invasive-uses for RFID tags
are in the works.