Patent ID: 7952465
Filing Date: 2011-05-31
Classification: H04W,Y04S

Abstract:
1. A wireless tag determination system comprising: a detection information storage configured to store a tag ID detected from a wireless tag by a tag reader and a time when the tag reader detects the tag ID, as detection information; a reliability determination unit configured to determine reliability which indicates certainty of existence of the wireless tag within a detection range of the tag reader at a time subsequent to a time of an initial detection of the wireless tag; and a determination requesting unit configured to request a reliability determination for reliability of existence of the wireless tag within a detection range of the tag reader, wherein the reliability determination unit comprises an elapsed time calculator configured to calculate elapsed time information indicating an elapsed time which is from a time of the last detection of the wireless tag to a time when the determination requesting unit requests the reliability determination, by use of the detection information stored in the detection information storage; a periodicity information holder configured to hold periodicity information indicating a transmission cycle of the wireless tag; and an attribute information holder configured to hold attribute information indicating an attribute of an object to which the wireless tag is attached, wherein the reliability determination unit includes,