| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable to accurately determine a likelihood that an object provided with a wireless tag exists within a detection range of a tag reader. <P>SOLUTION: The system comprises: a detected information storage 20a for storing information detected by a tag reader 10 from wireless tags 101-103; an attribute information preserver 70 for preserving attribute information indicative of an attribute of an object provided with a wireless tag; a period information preserver 50 for preserving transmission periods of the wireless tags 101-103; a determination requesting section 30 for making a notification of a determining request for a likelihood that the wireless tags 101-103 exist within a detection range of the tag reader 10; and a likelihood determining section 60a for determining the likelihood using at least of one of the detected information, period information, and attribute information in response to the determining request. <P>COPYRIGHT: (C)2008,JPO&INPIT |
