Full-Dimension Relative Positioning for RFID-Enabled Self-Checkout Services
summary
Taggo uses four anchor tags per cart and off-the-shelf RFID readers with two antennas to convert checkout into a relative positioning problem on a conveyor. It computes phase-change-rate ordering in the moving (x) and cross (y) dimensions, scores candidate carts with a probabilistic classifier, and runs on a prototype built from commercial RFID hardware plus a mobile-robot conveyor simulator. Results report about 90–93% ordering accuracy per dimension and 95% item-to-cart accuracy in lab tests.
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