OBJECT LOCATION SEARCH DEVICE, OBJECT LOCATION SEARCH SYSTEM, AND OBJECT LOCATION SEARCH METHOD

摘要

PROBLEM TO BE SOLVED: To provide an object location search device, an object location search system, and an object location search method, in which the location of an object with a tag device can be securely searched in simple constitution.;SOLUTION: In the object location search device, tag devices 141a-141e are installed on the respective objects. More than one search conductors 120 are used, in which a plurality of coils 121a-121e disposed to correspond to each of a plurality of object placement ranges as scheduled, and specified delay elements 122a-122e, are alternately and serially inserted. The location of the object corresponding to a certain tag device is detected based on time difference after a signal for inquiry information is sent to the object, and before response from the corresponding tag device 141a-141e returns to the search conductor 120.;COPYRIGHT: (C)2008,JPO&INPIT