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BlogsAsk The Experts ForumHow Can We Avoid Reading Adjacent Vehicle Tags at Toll Booths?

How Can We Avoid Reading Adjacent Vehicle Tags at Toll Booths?

Posted By RFID Journal, 04.10.2015

Is there any solution available to prevent the reading of tags from nearby lanes at electronic toll-collection stations?

—Name withheld

———

I have not heard of one. The active RFID-based solutions sold by companies for toll collection are fine-tuned to interrogate only the active tag affixed to the windshield of the car below at any given time. Some companies use passive ultrahigh-frequency (UHF) systems since the tags cost much less. If the reader antenna is set up properly, interrogating tags in adjacent lanes shouldn't be much of a problem in conventional setups, in which a metal booth separates each pair of lanes. It is possible to use metal mesh between the lanes to block a signal from adjacent booths.

—Mark Roberti, Founder and Editor, RFID Journal

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