Logistics management system with antenna operating status determination system , the antenna operating status determination system , antenna operating condition determination method .

摘要

PROBLEM TO BE SOLVED: To provide an antenna operation state determination system and an antenna operation state determination method for, even when operating antennas and non-operating antennas coexist in a plurality of antennas, determining the non-operating antennas from the plurality of antennas.;SOLUTION: A tag 8a for first operation state reflection is arranged at a position where it responds to only a radio wave to be transmitted by a first directional antenna 6a, and residual tags 8b to 8d for operation state reflection are arranged at positions where they respond to only radio waves to be transmitted by residual directional antennas 6b to 6d. Whether or not the response of each of the tags 8a to 8d for operation state reflection to each of the radio waves transmitted by each of the directional antennas 6a to 6d has been received by each of the directional antennas 6a to 6d is individually determined with respect to each of the directional antennas 6a to 6d, and based on the result of the determination, whether or not a directional antenna 6 is operating is individually determined with respect to each of the directional antennas 6a to 6d.;COPYRIGHT: (C)2012,JPO&INPIT