Inventory monitoring system and associated methods

• US 10,495,489 B2
• Filed: 12/21/2017
• Issued: 12/03/2019
• Est. Priority Date: 01/13/2017
• Status: Active Grant

• Current Assignee: Walmart Apollo, LLC (WalMart Inc.)
• Original Assignee: Walmart Apollo, LLC (WalMart Inc.)
• Inventors: Jones, Matthew Allen, Vasgaard, Aaron, Jones, Nicholaus Adam, Taylor, Robert James
• Primary Examiner(s): Luu, Thanh
• Application Number:
  US15/850,014
• Publication Number:
  US 20180202841A1
• Time in Patent Office: 712 Days
• CPC Class Codes: G01D 5/264 Mechanical constructional elements therefor G01D5/28, G01D5/32, G01D5/39 and G01D5/40 take precedence; Mechanical adjustment thereof
• CPC Class Codes: G01F 23/00 Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
• CPC Class Codes: G01G 19/42 for counting by weighing G01G19/387 takes precedence
• CPC Class Codes: G01G 5/06 with electrical indicating means
• CPC Class Codes: G01G 7/02 by electromagnetic action
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders
• CPC Class Codes: H01H 3/141 Cushion or mat switches

Abstract

An item monitoring system including a bladder including a body with a hollow interior configured to be filled with a fluid is described. The system includes an energy generation mechanism connected to the bladder and including a tube equipped with a wire core or surrounded by a wire coil in fluid communication with the bladder, and a magnetic item movably disposed within the tube. The system includes a light source electrically connected to the energy generation mechanism. Displacement of the fluid from the bladder into the tube moves the magnetic item within the tube, thereby generating an electrical current to emit a light from the light source.

Claims

1. An item monitoring system, comprising:

a bladder configured to be positioned on a supporting surface of a shelf and further configured to receive one or more items thereon, the bladder including;

a body that includes a hollow interior configured to be filled with a fluid;

an energy generation mechanism connected to the bladder, the energy generation mechanism including (i) a tube equipped with a wire core or surrounded by a wire coil and including an interior passage in fluid communication with the hollow interior of the body of the bladder, and (ii) a magnetic item movably disposed within the tube; and

a light source electrically connected to the energy generation mechanism;

wherein displacement of at least a portion of the fluid from the hollow interior of the body into the interior passage of the tube due to the one or more items placed on the body of the bladder moves the magnetic item within the tube; and

wherein movement of the magnetic item within the tube generates an electrical current to emit a light from the light source.

2. The item monitoring system of claim 1, wherein the bladder defines an elongated and planar configuration.

3. The item monitoring system of claim 1, wherein the body of the bladder includes a bottom planar surface configured to be positioned on the supporting surface of the shelf, and a planar top surface configured to receive the one or more items thereon.

4. The item monitoring system of claim 1, wherein the bladder is fabricated from a flexible material.

5. The item monitoring system of claim 1, wherein a fluidic connection between the hollow interior of the body and the interior passage of the tube defines a closed system.

6. The item monitoring system of claim 1, wherein the fluid is at least one of air or liquid.

7. The item monitoring system of claim 1, wherein the tube comprises a cylindrical tube with a wire core.

8. The item monitoring system of claim 1, wherein the tube is vertically oriented relative to a horizontal orientation of the shelf.

9. The item monitoring system of claim 1, wherein the energy generation mechanism is a sole energy source for the light source.

10. The item monitoring system of claim 1, wherein the light source is a light emitting diode (LED).

11. The item monitoring system of claim 1, wherein the light emitted from the light source is not detectable by a human eye.

12. The item monitoring system of claim 1, wherein placing the one or more items on the body of the bladder creates a compression force on the body, the compression force causing the displacement of at least a portion of the fluid from the hollow interior of the body into the interior passage of the tube.

13. The item monitoring system of claim 12, wherein removal of the one or more items from the body of the bladder removes the compression force from the body, removal of the compression force causing displacement of at least a portion of the fluid from the interior passage of the tube to the hollow interior of the body.

14. The item monitoring system of claim 1, wherein the tube defines a tube height extending between a bottom item position and a top item position, and wherein a position of the magnetic item within the tube relative to the bottom item position and the top item position is affected by an amount of the fluid displaced from the hollow interior of the body into the interior passage of the tube.

15. The item monitoring system of claim 14, wherein based on the position of the magnetic item within the tube relative to the bottom item position and the top item position, a different color light is emitted from the light source.

16. The item monitoring system of claim 14, wherein the position of the magnetic item within the tube relative to the bottom item position and the top item position corresponds to a fullness of the shelf with the one or more items.

17. The item monitoring system of claim 1, wherein the magnetic item is a magnetic ball.

18. An item monitoring system, comprising:

a bladder configured to be positioned on a supporting surface of a shelf and further configured to receive one or more items thereon, the bladder including;

a body that includes a hollow interior configured to be filled with a fluid;

an energy generation mechanism connected to the body, the energy generation mechanism including (i) a tube equipped with a wire core or surrounded by a wire coil and including an interior passage in fluid communication with the hollow interior of the body of the bladder, and (ii) a magnetic item movably disposed within the tube; and

a light source electrically connected to the energy generation mechanism; and

an image capture device;

wherein displacement of at least a portion of the fluid from the hollow interior of the body into the interior passage of the tube due to the one or more items placed on the body of the bladder moves the magnetic item within the tube;

wherein movement of the magnetic item within the tube generates an electrical current to emit a light from the light source; and

wherein the image capture device is configured to detect the light emitted from the light source to determine a fullness of the shelf with the one or more items.

19. The item monitoring system of claim 18, wherein the image capture device is a camera.

20. A method of monitoring items on a shelf including a supporting surface, the method comprising:

positioning a bladder on the supporting surface of the shelf, the bladder including a body that includes a hollow interior configured to be filled with a fluid;

detecting with an image capture device light from a light source electrically connected to an energy generation mechanism connected to the body of the bladder, the energy generation mechanism including (i) a tube equipped with a wire core or surrounded by a wire coil and including an interior passage in fluid communication with the hollow interior of the body of the bladder, and (ii) a magnetic item movably disposed within the tube; and

identifying a change in items on the shelf based on the detected light;

wherein positioning one or more items on the bladder displaces at least a portion of the fluid from the hollow interior of the body into the interior passage of the tube causing movement of the magnetic item; and

wherein movement of the magnetic item within the tube generates an electrical current to emit a light from the light source.