Abstract:
Retail items movable from an inventory location at a retail venue through a portal to a retail exit are automatically tracked. The items are individually associated with radio frequency identification (RFID) tags. An RFID tag reader has an array of antennas for generating a multitude of scan beams at an adjustable scan rate. A first set of the beams covers the inventory location, and a second set of the beams covers the portal to determine an exit characteristic of the items that have exited the retail venue. A point-of-sale workstation at the retail venue is operative, independently of the tag reader, for determining a sold characteristic of the items that have been sold. A controller dynamically adjusts the scan rate of the first and second sets of scan beams to an optimal scan rate as a function of the determined exit and sold characteristics.
Abstract:
An inventory monitoring controller maintains information reflecting a current inventory of articles based on radio frequency identification (RFID) tag identifying information received from one or more RFID tag readers in the context of inventory polling operations. In an embodiment, the controller also adjusts an operational parameter (e.g., a missing article detection threshold or a variable polling parameter) based on an analysis of the RFID tag identifying information. For example, a variable polling parameter may be adjusted in response to an occurrence of a triggering event (e.g., an inventory change indicated by the RFID tag identifying information or an occurrence of a temporal event), and a missing article detection threshold may be adjusted based on historical information relating to the detection of (or failure to detect) a particular RFID tag.