Walmart Inc.
Systems and methods of tracking objects in a retail store utilizing mobile RFID tag transmitter systems

Abstract:

In some embodiments, systems and methods are provided to track objects at a retail store, comprising: a mobile RFID transmitter system comprising an array of RFID tags; multiple RFID tag readers; a tracking control circuit communicatively coupled with the multiple RFID tag readers, and configured to: receive, from a sub-set of RFID tag readers, RFID tag information of each detected first set of RFID tags of the array of RFID tags; obtain a first set of rules and evaluate over time the received RFID tag information and identify over time threshold changes from a set of base information of received RFID signals from the array of RFID tags, wherein the threshold change is consistent with a first object traveling between the array of RFID tags and a corresponding one of the first sub-set of RFID tag readers; and track the first object.