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BlogsAsk The Experts ForumFor an Electronic Toll-Collection System, What Memory Is Read by the Interrogator for the Transaction?

For an Electronic Toll-Collection System, What Memory Is Read by the Interrogator for the Transaction?

Posted By RFID Journal, 08.18.2014

Is it the Electronic Product Code (EPC) memory or the user memory?

—Name withheld

———

For electronic toll-collection systems that use passive UHF tags, the serial number encoded in the tag's EPC memory is read. This number is associated with a specific account in a database, and that account is charged the toll fee whenever that serial number is read. Currently, only a small percentage of bridge and highway operators use passive UHF tags, but that percentage is growing (see Efforts to Aid Adoption of ISO 18000-6C RFID for Toll Collection Move Forward).

—Mark Roberti, Founder and Editor, RFID Journal

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