RFID-RADIO FREQUENCY IDENTIFICATION

Ravindra Reddy P M
5th Sem BCA, NCMS

First convinced in 1948, Radio Frequency Identification(RFID) has taken many years for the technology to mature to the point where it is sufficiently affordable and reliable for widespread use. From Electronic Article Surveillance(EAS) for article security to more sophisticated users in mainly clothing. RFID is seen by some as the inevitable replacement for bar codes. With increasing use comes increasing concern on privacy and security. Clearly there is considerable work to be undertaken before RFID becomes as pervasive as a bar codes although the tempo of change is increasing rapidly. Active RFID systems typically operate in the ultra-high frequency (UHF) ban and offer a range of up to 100 m. The ultra-high frequency ranges include frequencies from 300 to 1000 MHz, but only two frequency ranges, 433 MHz and 860-960 MHz, are used for RFID applications.

Security

Like other technologies,
RFID is exposed to security threats and, specifically, to attacks on the confidentiality, integrity, and availability of the data stored on the tags or on the information exchanged between a reader and a tag.
RANGE:
Ø  UP TO 100 m.
FREQUENCY:
Ø  300 to 1000 MHz