| 摘要 |
<P>PROBLEM TO BE SOLVED: To estimate the state of a wireless tag even if a worker is not on the spot. <P>SOLUTION: This wireless tag state estimation system is provided with a wireless tag reader, and a wireless tag state estimating device. The wireless tag reader is owned by a moving person, reads information from a near wireless tag among wireless tags arranged along a route where an optional moving person can move on, and has a means for communicating with the near wireless tag to acquire wireless tag information, and a means for giving to an external wireless tag state estimating device the acquired wireless tag information as it is or by working the wireless tag information. The wireless tag state estimating device has a means registering information of the arranged wireless tags, a means for recording-storing the wireless tag information acquired by the wireless tag reader, and a wireless tag state estimating means for estimating a wireless tag whose operation can not be confirmed on the basis of information of the arranged wireless tags and the recorded-stored wireless tag information. <P>COPYRIGHT: (C)2009,JPO&INPIT |
