Pick and put location verification utilizing RF received signal strength
First Claim
1. A method, comprising:
- receiving, by a mobile device, a first wireless signal from a first emitter;
calculating, by the mobile device, a first distance between the mobile device and the first emitter based on the first wireless signal;
determining, by the mobile device, that the mobile device is located at a stocking location associated with a first storage area based on the first distance between the mobile device and the first emitter and a comparison of the first distance with a threshold distance, wherein the threshold distance is configurable based on a density of storage bins in the first storage area; and
sending a notification, by the mobile device indicating that the mobile device is at the stocking location for the first storage area in response to the determining that the mobile device is located at the stocking location.
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Abstract
An inventory tracking system includes a plurality of emitters that each emit a wireless signal and are placed at known locations relative to a plurality of storage areas in a warehouse, including a first storage area for storage of a specified item. The system further includes a mobile device that travels with a material handler. The mobile device: receives a first wireless signal from a first emitter that is one of the plurality of emitters; calculates a first distance between the material handler and the first emitter based on the first wireless signal; determines that the material handler is located at a stocking location for the first storage area based on the first distance and the known location of the first emitter; and sends a notification indicating that the material handler is at the stocking location for the first storage area.
23 Citations
19 Claims
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1. A method, comprising:
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receiving, by a mobile device, a first wireless signal from a first emitter; calculating, by the mobile device, a first distance between the mobile device and the first emitter based on the first wireless signal; determining, by the mobile device, that the mobile device is located at a stocking location associated with a first storage area based on the first distance between the mobile device and the first emitter and a comparison of the first distance with a threshold distance, wherein the threshold distance is configurable based on a density of storage bins in the first storage area; and sending a notification, by the mobile device indicating that the mobile device is at the stocking location for the first storage area in response to the determining that the mobile device is located at the stocking location. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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receiving, at a mobile device that travels with a material handler, a first wireless signal from a first emitter of a plurality of emitters; calculating, by the mobile device, a first distance between the material handler and the first emitter based on the first wireless signal; determining, by the mobile device, that the material handler is located at a stocking location associated with a first storage area of a specified item based a comparison of the first distance with a threshold distance, wherein the threshold distance is configurable based on density of bins in the first storage area; and sending, by the mobile device, a message indicating that the material handler is at the stocking location for the first storage area. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A mobile device:
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comprising an antenna; and a processor configured to; receive, from the antenna, a first wireless signal from a first emitter of a plurality of emitters; calculate a first distance between the mobile device and the first emitter based on the first wireless signal; determine that the mobile device is located at a stocking location associated with a first storage area based on the first distance between the mobile device and the first emitter, a known location of the first emitter and a comparison of the first distance with a threshold distance that is configurable based on a density of the storage bins in the first storage area; and sending a notification, by the mobile device, indicating that the mobile device is at the stocking location for the first storage area in response to the determining that the mobile device is located at the stocking location.
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Specification