Back to results
US 2026/0155029 A1Published application
Methods and systems of dual-domain based tag location detection in an inventory environment
AssigneeT-Mobile Innovations LLC
InventorsLyle BERTZ, Robert BUTLER, Zheng FANG
Life of this patent
Estimating the term…
Abstract
A method comprises determining, by an application, a current variance between a reference tag location of a reference tag and an active tag location of an active tag based on a response signal received from the active tag and an image depicting a light-emitting diode (LED) on the reference tag, comparing, by the application, the current variance of the reference tag location and the active tag location with an expected variance of the reference tag location and a prior active tag location, and performing, by the application, a corrective action when the current variance deviates from the expected variance beyond a threshold based on a rule.
Claims20
A method of dual-domain based tag location detection in an inventory environment, wherein the method comprises:
- determining, by an application executing at a computer system in an inventory management system, a reference tag location of a reference tag in an inventory environment based on a first image depicting a light-emitting diode (LED) on the reference tag, first image metadata associated with the first image, and camera parameters associated with a camera that captured the first image;
- determining, by the application, an active tag location of an active tag in the inventory environment based on a first response signal carrying tag data received from the active tag and first signal metadata associated with the first response signal;
- computing, by the application, an expected variance between the reference tag location and the active tag location;
- subsequently receiving, by the application, a second response signal from the active tag comprising the tag data and second signal metadata associated with the second response signal;
- instructing, by the application, the camera to capture a second image depicting the reference tag when the LED on the reference tag is activated when the second signal metadata associated with the second response signal is different from the first signal metadata associated with the first response signal received from the active tag;
- receiving, by the application, a second image and second image metadata associated with the second image from the camera;
- confirming, by the application, that the reference tag location of the reference tag has remained constant based on the second image, the second image metadata, and the camera parameters;
- modifying, by the application, the active tag location of the active tag based on the second response signal and the second signal metadata associated with the second response signal in response to confirming the reference tag location of the reference tag;
- computing, by the application, a current variance between the reference tag location and the active tag location;
- and
- performing, by the application, a corrective action when the current variance deviates from the expected variance beyond a threshold, wherein the corrective action comprises at least one of modifying the expected variance based on the active tag location or modifying the active tag location based on the expected variance.
8 more elements
An inventory system, comprising:
- a reader device configured to:
- transmit interrogation signals to a reference tag and an active tag, wherein the reference tag comprises a light-emitting diode (LED);
- receive, from the active tag, a response signal carrying tag data;
- transmit the tag data and signal metadata describing the response signal to an inventory management system;
- and
- transmit an instruction to a camera to capture an image depicting the LED on the reference tag when the LED is activated;
- the camera configured to transmit the image and image metadata describing the image to the inventory management system
- the inventory management system comprising:
- a memory;
- and
- a management application stored on the memory, which when executed by a processor of the inventory management system, causes the management application to:
- determine a current variance between a reference tag location of the reference tag and an active tag location of the active tag based on the response signal, the signal metadata, the image, and the image metadata, wherein the current variance is a first vector indicative of a first difference between the reference tag location and the active tag location;
- compare the current variance between the reference tag location and the active tag location with an expected variance between the reference tag location and a prior active tag location, wherein the expected variance is a second vector indicative of a second difference between the reference tag location and an expected active tag location of the active tag;
- and
- update location data of the active tag to be the active tag location when the current variance deviates from the expected variance by more than a threshold.
12 more elements
A method, comprising:
- determining, by an application executing at a computer system in an inventory management system, a current variance between a reference tag location of a reference tag and an active tag location of an active tag based on a response signal received from the active tag and an image depicting a light-emitting diode (LED) on the reference tag, wherein the current variance is a first vector indicative of a first difference between the reference tag location and the active tag location;
- comparing, by the application, the current variance of the reference tag location and the active tag location with an expected variance of the reference tag location and a prior active tag location, wherein the expected variance is a second vector indicative of a second difference between the reference tag location and an expected active tag location of the active tag;
- and
- performing, by the application, a corrective action when the current variance deviates from the expected variance beyond a threshold based on a rule, wherein the corrective action comprises at least one of modifying the expected variance based on the active tag location or modifying the active tag location based on the expected variance.
1 more element
Dependencies are inferred from the claim text.