RFID TAG MOVEMENT IDENTIFICATION METHOD AND RFID TAG MOVEMENT IDENTIFICATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an RFID tag movement identification method for identifying an RFID tag moving in front of an antenna and a stationary tag on the basis of time series data on radio wave reception intensity, a phase, and a Doppler frequency of a read RFID tag obtained from a general RFID reader and a general antenna, and to provide an RFID tag movement identification program.SOLUTION: An RFID reader acquires time series read data on a plurality of RFID tags including a moving tag and a stationary tag, and a stationary RFID tag filter based on a certain parameter specifies a stationary tag from read information on the plurality of RFID tags. In an RFID tag movement identification method, the stationary RFID tag filter uses at least one or more individual stationary RFID tag filters among an at-a-glance reading filter, RSSI absolute value filter, RSSI discontinuous upward filter, RSSI valley type filter, overreading filter, phase shifting small filter, and vertical movement filter to identify a stationary RFID tag and a movement RFID tag, and identify the movement RFID tag.