Radio Frequency Identification (RFID) is a method of remotely storing and retrieving data using devices called RFID tags. An RFID tag is a small object that can be attached to or incorporated into a product. RFID uses radio frequency waves to transfer data between a reader/scanner and a movable item to identify, track or locate it. RFID does not require physical sight or contact between the reader and the tagged item, making it more efficient than traditional bar codes.

Types of RFID tags

Passive: Passive RFID tags do not have their own power supply. The minute electrical current induced in the antenna by the incoming radio-frequency scan provides enough power for the tag to send a response. Passive tags have practical read ranges that vary from about 10 mm up to about 5 meters.

Active: Active RFID tags have a power source, and may have longer ranges and larger memories than passive tags, as well as the ability to store additional information sent by the transceiver.

RFID usage
RFID has the ability to track moving objects. RFID confers business benefits at low costs.  Retail ports, industries, warehouses , parking lots, toll roads, travel/car fleet units, banks, airports, judiciary and government are a few of the significant areas that can adopt the RFID technology.

RFID Benefits

1. Beneficial across industries
2. Low cost and maintenance
3. Instantly usable
4. Expandable for future up gradations