| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect relative positions of objects correctly even if mutual intervals between the objects are narrow, when the positions of a plurality of objects are detected using wireless tags. <P>SOLUTION: Position detection antennas p-1, p-2, and p-3 as well as shelf-wireless tags s, s, and s are prepared at each of shelves 10-1, 10-2, and 10-3 as the objects. On a shelf tag controlling table 41 of a position controlling server 30 the IDs of wireless tags attached there are registered preliminary at each shelf. A positioning section 34 of the position controlling server 30 determines the position of each shelf, using the identification data from wireless tags on the other shelves received by the position detection antennas deployed on each shelf and the data memorized in the shelf tag controlling table 41. <P>COPYRIGHT: (C)2007,JPO&INPIT |
