Are There Any RFID-based Techniques for Detecting Lost Children?

By RFID Journal

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Ask The ExpertsAre There Any RFID-based Techniques for Detecting Lost Children?
RFID Journal Staff asked 4 years ago

Could active or passive radio frequency identification technology be used for this purpose?

—Revati

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Revati,

Radio frequency identification cannot be used to detect a lost child. RFID is a relatively short-range technology used for identifying, tracking and managing objects or individuals. Passive RFID transponders can communicate with readers at distances ranging from a few millimeters to 30 meters or so. Active tags have a read range of several thousand meters. If you were to put a passive or active tag on a child, and if he or she were to become lost at a shopping mall, you would need to install readers throughout the mall to track that child. If the child were kidnapped, RFID would be of no use whatsoever.

There are Bluetooth-based systems available on the market that can alert parents via their smartphone if their child strays too far. That’s a better solution for this application than an active or passive RFID system.

—Mark Roberti, Founder and Editor, RFID Journal

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