Wireless tag reader and wireless tag status inference apparatus, system, and program

摘要

A system including wireless tags that transmit information from fixed locations to nearby wireless tag readers possessed by moving persons also includes a wireless tag status inference apparatus to which the wireless tag readers send identifying information received from the wireless tags. The wireless tag status inference apparatus logs the information received from the wireless tag readers, and compares the logged information with a stored list of installed wireless tags to identify suspected inoperable wireless tags. Wireless tags requiring replacement or repair can thereby be identified promptly and inexpensively, without the need to dispatch personnel on periodic inspection tours of all areas in which the wireless tags are installed.