RFID Tags

 

 

Origin of RFID tags

Leon Theremin is believed to be the first user or inventor of this device because the inevitable part of spy-kit for the Russian Government in 1945. This cannot be a reliable story: the tool introduced by Theremin became a passive covert listening device and not an identification tag. We've got the technology used in RFID has actually been since the early 1920s. The IFF transponder, an infinitely more relevant technology, developed in 1939 and the British utilised it in the Second World War to detect airplanes whether they were friends or foes.

What is RFID?

RFID is surely an all-encompassing expression for technologies that employ radio waves to acknowledge people or objects automatically. After storing a serial number or other identification data on the chip connected to an antenna, user can use a reader to receive radio waves with the chip and convert the signal into digital information, that is ignored to computers and be used of.

This technology finds its maximum usage in payment systems, access control and asset tracking. For illustration, the logistics industry often uses it in making out large cargos.

RF technology has an extensive use in many aspects of electronics and technology such as television, radio, cellular phones, radar and automatic identification systems. RFID (Radio Frequency Identification) provides Automatic Identification of items by utilizing radio frequency signals. RFID can be used in a variety of applications like toll collection (electronic), railway car identification and tracking, intermodal container identification, asset identification and tracking, item management for retail, health care and logistics applications national, access control, animal identification, fuel dispensing loyalty programmes, automobile immobilizing and so on.

Radio Frequency (RF) makes reference to electromagnetic waves with a wavelength that fit to use in radio communication. Categorized by their frequencies, radio surf is suggested for kilohertz, megahertz or gigahertz. Radio frequencies range from very low frequency (VLF), that features a range of 10 to 30 kHz, to very high frequency (EHF), which has a range of 30 to 300 GHz.

RFID - An Outline

RFID is the fittest and supple technology for automatic operation due to its resilience. It offers benefits not available in other identification technologies. RFID can perform under various environmental situations and provides a superior quality of data integrity. Moreover, considering that the technology is hard to simulate, it gives advanced level of security.

 

Essentially RFID is not different from bar coding. Bar code uses a reader and coded labels that are attached to an item, whereas RFID employs a reader and special RFID tools that are linked to an item. To transmit information from the label to reader, Barcode make use of optical signals but RFID uses RF signals for the same.

Radio waves communicate between an item to which an RFID set up is attached and an RFID reader. The tool can have information of the item, for example what the item is, what time a device takes to traverse a specific area, even a parameter such as temperature. Practically, RFID tools like a tag or label could be attached to anything - from a vehicle to a pallet of merchandise.

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