A technique of preventing occurrence of interference even when a plurality of RFID antennas are used simultaneously. Each RFID antenna is attached with a calibration RFID tag. A combination of RFID antennas that causes a problem is acquired based on whether information held by the calibration RFID tag...http://www.google.fr/patents/US7898392?utm_source=gb-gplus-shareBrevet US7898392 - Control method, control system, RFID antenna and connection investigation method
Control method, control system, RFID antenna and connection investigation method