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Ecology & Environment
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30/12/20 09:20 AM IST

Air Quality Commission calls for strict implementation of RFID system

In news

Air Quality Commission calls for strict implementation of RFID system at 13 toll plazas of Delhi

Why?

These 13 toll plazas contribute to about  70 % commercial vehicles entry to NCT of Delhi. 

Significance

Move to help reduce vehicular pollution from vehicles entering Delhi.

The Radio Frequency Identification (RFID) system
  • Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects.
  • An RFID system consists of a tiny radio transponder; a radio receiver and transmitter.
  • When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits digital data, usually an identifying inventory number, back to the reader.
  • This number can be used to track inventory goods.

There are two types of RFID tags:
  • Passive tags are powered by energy from the RFID reader's interrogating radio waves.
  • Active tags are powered by a battery and thus can be read at a greater range from the RFID reader; up to hundreds of meters.
Source: PIB

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