Last September, Touch n Go began the utilisation of radio-frequency identification for electronic toll collection with the start of a public pilot programme, which has since seen a sizeable community of over 200,000 pilot testers across the Klang Valley, Johor and Penang being enabled during the initial pilot stage deployment.
Under the current TnG RFID pilot for toll, when passing through the RFID lane, the reader will emit a signal to the RFID tag via an antenna. The tag then provides relevant information such as available balance and the toll fare is then deducted from a user’s electronic wallet that is linked to the RFID tag.Well, the idea isn’t new.
As such, passive RFID tags like the one employed in the TnG application are not powered, and work with an active reader on the toll gate, which sends an electromagnetic signal and reads the info off the RFID tag. In general, a UHF tag – which operates at a frequency of between 919 to 923 MHz, depending on the particular system – features an antenna around 16 cm wide, made out of a metallic compound deposited on the substrate, as exemplified by the TnG RFID passive tag used here.
It would be interesting to see if TnG can roll out this service in the near future by working with relevant stakeholders and local authorities.There is also the possibility of RFID being used as a means of payment for retail transactions, with petrol station and drive-through retail payments being made via the UHF tag affixed to the car.
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