Wireless identification of circulating cups: electronic tags conceal the bottom structure of the cup.

Abstract

A hidden electronic tag structure for wireless identification of a reusable cup is disclosed. The reusable cup includes: a cup body, which is an insulated cup body, with a bottom frame extending from the cup body to form a frame chamber below the bottom of the cup body outside the liquid-containing cup chamber; a cover piece that is connected to the bottom frame to seal the frame chamber, and has a cover surface that forms an electromagnetic wave sensing space in the frame chamber; a radio frequency identification (RFID) tag disposed in the electromagnetic wave sensing space, with a pair of extended antennas extending from one side of the main antenna of the RFID tag and a groove formed as a circuit pad electrically connected to an ultra-high frequency RFID chip; the overall structure enables the reusable cup to use the RFID tag, and in addition to eliminating the problems of chemical resistance, peeling or external force damage, it also improves the long-distance (far-field) reading effect when identifying batches.

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