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: A technique for modifying radio frequency identification (RFID) system operation using movement detection includes an RFID scanner disposed within an environment and operable to obtain RFID data from RFID tags located within the environment. An imaging device captures video of the environment, and a processor analyzes the captured video from the imaging device to detect and locate movement within the environment. If movement is detected within the environment, the processor modifies operation of the RFID scanner that is proximal to the location of the movement, increasing or decreasing interrogation rate, for example.

Abstract: A technique for modifying radio frequency identification (RFID) system operation using movement detection includes an RFID scanner disposed within an environment and operable to obtain RFID data from RFID tags located within the environment. An imaging device captures video of the environment, and a processor analyzes the captured video from the imaging device to detect and locate movement within the environment. If movement is detected within the environment, the processor modifies operation of the RFID scanner that is proximal to the location of the movement, increasing or decreasing interrogation rate, for example.

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.

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.

Abstract: Polling operations performed by a reader may be adjusted by a server. The server determines at least one of volatility measurements or polling operation parameters based on information obtained from components within an automated inventory tracking system. The automated inventory tracking system is part of an inventory management system. The server also obtains volatility measurements from another system within the inventory management system. The server incorporates the volatility measurements obtained from the other system, at least one of the volatility measurements or the polling operation parameters determined by the server, and power usage information associated with the reader into a periodic calculation to determine optimal polling parameters. The server periodically sends the optimal polling parameters to the reader for adjustment to a polling operation performed by the reader within a coverage area.

Abstract: A server in communications with two or more Radio Frequency Identification (RFID) readers receives information obtained by the two or more RFID readers within a coverage area. The received information is associated with the at least one item tag. The server assigns a predefined number of votes for the at least one item tag to fixed objects on which items attached to item tags are located. The predefined number of votes assigned to each fixed object is based in part on the received information. The server also calculates votes assigned to the fixed objects and determines the location of the at least one item tag to be a fixed object whose votes meet a predefined criterion.

Abstract: Polling operations performed by a reader may be adjusted by a server. The server determines at least one of volatility measurements or polling operation parameters based on information obtained from components within an automated inventory tracking system. The automated inventory tracking system is part of an inventory management system. The server also obtains volatility measurements from another system within the inventory management system. The server incorporates the volatility measurements obtained from the other system, at least one of the volatility measurements or the polling operation parameters determined by the server, and power usage information associated with the reader into a periodic calculation to determine optimal polling parameters. The server periodically sends the optimal polling parameters to the reader for adjustment to a polling operation performed by the reader within a coverage area.