RFID TAG AND RFID TAG SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a RFID tag system for detecting the current position and the posture and for managing two or more objects to be managed even if there are variations in types and in sizes, and to provide a RFID tag in which invalidated RFID can be revitalized by only a legitimate authorized person.

SOLUTION: In the RFID tag system, the RFID tag 19 capable of communicating within a prescribed range of signal transceiver distance is mounted to carry out communication with each RFID tag 19. The RFID tag system includes a matrix antenna 11 in which two or more antenna elements 12 are arranged in matrix with a space for overlapping the signal transceiver distance partly, and a location judgment unit 15 in which a coordination position within the matrix antenna of the antenna element 12 during communication with the RFID tag 19 now is determined as the position of the RFID. The RFID tag can be revitalized by using an identification ID and a password code of the tag.

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