| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the reading efficiency to a number of wireless tags and dispense with adjustment of a guide by regularly locating the wireless tags in a maximum antenna gain direction even with varied distances of a reading antenna from the wireless tags. <P>SOLUTION: A plurality of articles 12 with wireless tags 11 are arranged and stored in a storage container 13 so that the transmitting and receiving surfaces of the wireless tags 11 are mutually opposed. The guide 15 for guiding the movement of the storage container 13 with positioning is arranged on a reading table 14 on which the container 13 is moved in the arrangement direction of the wireless tags 11. The reading table 14 includes the wireless tag reading antenna 16 arranged so that the maximum antenna gain direction is inclined to the moving direction of the container 13 but not to the direction orthogonal to the moving direction vertical or substantially vertical to this direction, and the wireless tags 11 in the moving storage container are read by this wireless tag reading antenna 16. <P>COPYRIGHT: (C)2007,JPO&INPIT |
