RFID application in wireless networks

What is RFID application in wireless networks? How can you use combination of RFID and WLAN?

RFID is the old technology, but an application of RFID, even today, has not reach full potential. Radio-Frequency Identification (RFID) is the method of automatic identification. It is based on RFID tags or transponders.

RFID tags are device that carries data. They could be attached to product, person or animal. RFID tags are made of chips and antennas.

Passive tags don’t have the internal power supply. Active tags require internal power supply.

RFID is not the new technology. Russian inventor Leon Theremin has invented an espionage tool. This vibrated diaphragm, covert listening device, was forerunner of the RFID technology.

There are many usages of the RFID technology today. Many countries use RFID tags on their passports. Malaysia was the first, and after that UK and US put RFID tags in their passports.

More and more countries use the RFID technology for Highway payments. It is also used on airports, for trains, buses, subways and other means of transport.

Product tracking can be used for libraries, warehouses, building access controls. Implanted RFID tags are used for animal identification. There are also used as human implants for payment, security, identification and other purposes.

RFID tags with Wireless LAN is an ideal combination for RTLS (Real-Time Location System). An RTLS with WLAN can determine an active RFID tag location with reasonable accuracy of 2 to 3 meters (6 to 10 feet). Companies buy RTLS to increase operational efficiencies through asset tracking.