15 October 2007
Radio-frequency identification (RFID) is an automatic
identification method, relying on storing and remotely retrieving
data using devices called RFID tags or transponders.
An RFID tag is an object that can be applied to or incorporated into
a product, animal, or person for the purpose of identification using
radiowaves. Some tags can be read from several meters away
and beyond the line of sight of the reader.
Most RFID tags contain at least two parts.
One is an integrated circuit for
storing and processing information, modulating and
demodulating a (RF) signal and can also be used for other
The second is an antenna for
receiving and transmitting the signal.
A technology called chipless RFID
allows for discrete identification of tags without an integrated
circuit, thereby allowing tags to be printed directly onto assets at
lower cost than traditional tags.
Today, a significant thrust in RFID use is in enterprise supply
chain management, improving the efficiency of inventory tracking and
management. However, a threat is looming that the current growth and
adoption in enterprise supply chain market will not be sustainable.
A fair cost-sharing mechanism, rational
motives and justified returns from RFID technology investments are
the key ingredients to achieve long-term and sustainable RFID
What is RFID?
RFID - Tracking Everything
U.S. Unveils National I.D. Plan