| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique for determining where in a management target area a tag exists. <P>SOLUTION: A tag management system of the present invention manages plural tags that transmit second frequency band signals when the tags receive first frequency band signals, and includes: transmission control means for executing control so that plural first frequency band antennas individually issue the first frequency band signals including identification information of the first frequency band antennas at different timing; reception means for receiving the second frequency band signal from each tag in response to each first frequency band signal from each first frequency band antenna; and output means for outputting predetermined control information according to the identification information of the first frequency band antennas included in the second frequency band signals received by the reception means. <P>COPYRIGHT: (C)2012,JPO&INPIT |
