RFID: Radio Frequency Identification Tag

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GS-3 Science and technology
GS-3 Infrastructure- Transport

ABOUT RFID -Radio Frequency Identification Tag

RFID tagging is an ID system that uses small radio frequency identification devices for identification and tracking purposes. An RFID tagging system includes the tag itself, a read/write device, and a host system application for data collection, processing, and transmission. An RFID tag (sometimes called an RFID transponder) consists of a chip, some memory, and an antenna.

RFID tags that contain their own power source are known as active tags. Those without a power source are known as passive tags. A passive tag is briefly activated by the radio frequency (RF) scan of the reader.

Emerging RFID applications include:

  • Self-check-ins at Libraries / rental services as well as retail premises.
  • Livestock Management and pet identification.
  • Toll/road – collection/charging and control measures. Many more RFID-based payment collection systems.
  • Building Security – secure access controls, documentation and passports
  • Airports – for baggage tracking and tracing/locating.
  • SMART home controls – systems to manage home/business energy consumption/production.
  • Seismic Sensing – such as locating gas lines and temperature sensing (geophysical).
  • Environmental – Energy, Ozone & Pollution measuring equipment.



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