barcodes

Basics of RFID

RFID, a relatively new technology compared to Barcode, uses radio frequency waves to detect and identify a particular item. The technology essentially involves a small tag or chip which can be mounted or attached on the item which needs to be tracked. The tag holds data which identifies the item and may also give some basic description of it. The other part of the system is the Tag Reader. Tag transmits information in form of radio waves which are read by the readers. Transponders, Antenna and computer software forms other parts of the whole system. RFID tags are available in two varieties; Active tags and Passive tags.