Conveyors including sensors for detecting error conditions associated with products traveling on the conveyors

• US 10,216,175 B2
• Filed: 01/29/2018
• Issued: 02/26/2019
• Est. Priority Date: 02/06/2017
• Status: Active Grant

• Current Assignee: Walmart Apollo, LLC (WalMart Inc.)
• Original Assignee: Walmart Apollo, LLC (WalMart Inc.)
• Inventors: Enssle, Benjamin D., Brooks, Cristy C., Winkle, David C., Bryan, Greg A., Mattingly, Todd D.
• Primary Examiner(s): Bui, Bryan
• Application Number:
  US15/882,692
• Publication Number:
  US 20180224837A1
• Time in Patent Office: 393 Days
• CPC Class Codes: B65G 1/1371 with data records
• CPC Class Codes: B65G 2203/042 Sensors
• CPC Class Codes: B65G 43/08 Control devices operated by article or material being fed, conveyed or discharged and controlling the discharging devices B65G47/42
• CPC Class Codes: B65G 43/10 Sequence control of conveyors operating in combination
• CPC Class Codes: B65G 47/50 according to destination signals stored in separate systems
• CPC Class Codes: G01N 2021/845 Objects on a conveyor
• CPC Class Codes: G01N 21/95607 using a comparative method
• CPC Class Codes: G05B 19/4183 characterised by data acquisition, e.g. workpiece identification
• CPC Class Codes: G05B 19/41875 characterised by quality surveillance of production
• CPC Class Codes: G05B 19/4189 characterised by the transport system
• CPC Class Codes: G05B 2219/32189 Compare between original solid model and measured manufactured object
• CPC Class Codes: G06F 16/2457 with adaptation to user needs
• CPC Class Codes: G06F 16/285 Clustering or classification
• CPC Class Codes: G06Q 10/0875 Itemisation or classification of parts, supplies or services, e.g. bill of materials
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

In some embodiments, methods and systems are provided that include interconnected conveyors including multiple sensors configured to detect identifying characteristics and physical characteristics of the products traveling on the conveyors. The product-associated information that is detected by the sensors is analyzed relative to predefined product-associated identifying characteristics and physical characteristics stored in a database, and an error signal is generated if the actual, sensor-obtained product identifying characteristics and/or physical characteristics, do not correspond to the predefined, database-stored product identifying characteristics and/or physical characteristics.

Claims

1. A system for sorting and tracking products at a product distribution facility, the system comprising:

a plurality of interconnected conveyors configured to move the products;

a first sensor positioned proximate a product advancement surface of at least one of the conveyors and configured to detect at least one identifying characteristic of at least one product moving on the product advancement surface;

a second sensor positioned proximate the product advancement surface and configured to detect at least one physical characteristic of the at least one product moving on the product advancement surface;

an electronic database storing inventory management data including;

data indicating predefined identifying characteristic and physical characteristic information associated with the at least one product, the predefined identifying characteristic and physical characteristic information corresponding to the at least one product when in a new condition and undamaged; and

data indicating actual identifying characteristic information associated with the at least one product, the actual identifying characteristic information corresponding to the at least one product when detected by the first sensor during movement of the at least one product along the product advancement surface;

data indicating actual physical characteristic information associated with the at least one product, the actual physical characteristic information corresponding to the at least one product when detected by the second sensor during movement of the at least one product along the product advancement surface;

a third sensor positioned proximate the product advancement surface and configured to detect a location of the at least one product moving on the product advancement surface; and

a processor-based electronic inventory management device in communication with the first and second sensors and the electronic database, the electronic inventory management device being configured obtain the inventory management data stored in the electronic database and, based on the obtained inventory management data, to;

compare the data indicating the actual identifying characteristic information associated with the at least one product detected by the first sensor during movement on the product advancement surface to the data indicating the predefined identifying characteristic information associated with the at least one product in order to determine an identity of the at least one product detected by the first sensor;

compare the data indicating the actual physical characteristic information associated with the at least one product detected by the second sensor during movement on the product advancement surface to the data indicating the predefined physical characteristic information associated with the at least one product in order to verify that the identity of the at least one product and that the condition of the at least one product detected by the second sensor is new and undamaged; and

redirect movement of the at least one product detected by the first and second sensors on the product advancement surface of the at least one of the conveyors in response to a determination, by the electronic inventory management device, that a verification of the identity of the at least one product failed or that the at least one product is not in a new condition or is in a damaged condition;

wherein the inventory management data stored in the electronic database further includes data indicating predefined route information associated with the at least one product; and

wherein the electronic inventory management device is configured to compare actual route information of the at least one product based on detection of the at least one product by the third sensor to the predefined route information associated with the at least one product in the electronic database in order to determine whether the actual route of the at least one product moving on the product advancement surface of the at least one of the conveyors is consistent with the predefined route information associated with the at least one product.

2. The system of claim 1, wherein the first sensor includes at least one of a motion-detecting sensor, a photo sensor, a radio frequency identification (RFID) sensor, an optical sensor, a barcode sensor, and a digital camera sensor.

3. The system of claim 1, wherein the second sensor includes at least one of a weight sensor, a volumetric sensor, and a size sensor.

4. The system of claim 1, further comprising a control unit coupled to the conveyors and configured to control directional movement of the conveyors, wherein the electronic inventory management device is configured, in response to a successful verification of the identity of the at least one product and that the at least one product is in a new and undamaged condition, to transmit a signal to the control unit to cause the control unit to permit the at least one product to continue moving on the product advancement surface of the at least one of the conveyors without being redirected.

5. The system of claim 1, wherein the electronic inventory management device is configured, in response to a determination, by the electronic inventory management device, that a verification of the identity of the at least one product failed or that the at least one product is not in a new condition or is in a damaged condition, to transmit an electronic error message to an electronic device of a worker at the product distribution facility.

6. The system of claim 1, wherein the electronic inventory management device, is configured, in response to a determination by the electronic inventory management device that the actual route of the at least one product moving on the product advancement surface of the at least one of the conveyors is inconsistent with the predefined route information associated with the at least one product in the electronic database, to redirect movement of the at least one product along the product advancement surface onto a path consistent with the predefined route information associated with the at least one product.

7. The system of claim 6, further comprising a plurality of transfer nodes interconnecting the plurality of conveyors, each of the transfer nodes configured to permit transfer of the at least one product between the product advancement surface of one of the conveyors and the product advancement surface of another one of the conveyors, and wherein the electronic inventory management device is configured to redirect the route of the at least one product onto the path consistent with the route information associated with the at least one product via at least one of the transfer nodes.

8. The system of claim 6, wherein the electronic inventory management device is configured, in response to the determination by the electronic inventory management device that the actual route of the at least one product moving on the product advancement surface of the at least one of the conveyors is inconsistent with the route information associated with the at least one product, to transmit an electronic error message to an electronic device of a worker at the product distribution facility.

9. A system for sorting and tracking products at a product distribution facility, the system comprising:

a plurality of interconnected conveyors configured to move the products;

a first sensor positioned proximate a product advancement surface of at least one of the conveyors and configured to detect at least one identifying characteristic of at least one product moving on the product advancement surface;

a second sensor positioned proximate the product advancement surface and configured to detect at least one physical characteristic of the at least one product moving on the product advancement surface;

an electronic database storing inventory management data including;

data indicating predefined identifying characteristic and physical characteristic information associated with the at least one product, the predefined identifying characteristic and physical characteristic information corresponding to the at least one product when in a new condition and undamaged; and

data indicating actual identifying characteristic information associated with the at least one product, the actual identifying characteristic information corresponding to the at least one product when detected by the first sensor during movement of the at least one product along the product advancement surface;

data indicating actual physical characteristic information associated with the at least one product, the actual physical characteristic information corresponding to the at least one product when detected by the second sensor during movement of the at least one product along the product advancement surface; and

a processor-based electronic inventory management device in communication with the first and second sensors and the electronic database, the electronic inventory management device being configured obtain the inventory management data stored in the electronic database and, based on the obtained inventory management data, to;

compare the data indicating the actual identifying characteristic information associated with the at least one product detected by the first sensor during movement on the product advancement surface to the data indicating the predefined identifying characteristic information associated with the at least one product in order to determine an identity of the at least one product detected by the first sensor;

compare the data indicating the actual physical characteristic information associated with the at least one product detected by the second sensor during movement on the product advancement surface to the data indicating the predefined physical characteristic information associated with the at least one product in order to verify that the identity of the at least one product and that the condition of the at least one product detected by the second sensor is new and undamaged; and

redirect movement of the at least one product detected by the first and second sensors on the product advancement surface of the at least one of the conveyors in response to a determination, by the electronic inventory management device, that a verification of the identity of the at least one product failed or that the at least one product is not in a new condition or is in a damaged condition;

wherein the electronic database further includes order information associated with the at least one product moving on the product advancement surface, and wherein the electronic inventory management device is further configured to obtain the order information associated with the at least one product from the electronic database after a successful verification by the electronic inventory management device of the identity of the at least one product and that the at least one product is in a new and undamaged condition, and to determine whether the verified identity of the at least one product moving on the product advancement surface of the at least one of the conveyors is consistent with the order information associated with the at least one product obtained by the electronic inventory management device from the electronic database.

10. A method for sorting and tracking products at a product distribution facility, the method comprising:

providing a plurality of interconnected conveyors configured to move the products;

providing a first sensor positioned proximate a product advancement surface of at least one of the conveyors and configured to detect at least one identifying characteristic of at least one product moving on the product advancement surface;

providing a second sensor positioned proximate the product advancement surface and configured to detect at least one physical characteristic of the at least one product moving on the product advancement surface;

providing a third sensor positioned proximate the product advancement surface and configured to detect a location of the at least one product moving on the product advancement surface;

providing an electronic database storing inventory management data including;

data indicating predefined identifying characteristic and physical characteristic information associated with the at least one product, the predefined identifying characteristic and physical characteristic information corresponding to the at least one product when in a new condition and undamaged; and

data indicating actual identifying characteristic information associated with the at least one product, the actual identifying characteristic information corresponding to the at least one product when detected by the first sensor during movement of the at least one product along the product advancement surface;

data indicating actual physical characteristic information associated with the at least one product, the actual physical characteristic information corresponding to the at least one product when detected by the second sensor during movement of the at least one product along the product advancement surface; and

providing a processor-based electronic inventory management device in communication with the first and second sensors and the electronic database, the electronic inventory management device being configured obtain the inventory management data stored in the electronic database and, based on the obtained inventory management data, to;

compare the data indicating the actual identifying characteristic information associated with the at least one product detected by the first sensor during movement on the product advancement surface to the data indicating the predefined identifying characteristic information associated with the at least one product in order to determine an identity of the at least one product detected by the first sensor;

compare the data indicating the actual physical characteristic information associated with the at least one product detected by the second sensor during movement on the product advancement surface to the data indicating the predefined physical characteristic information associated with the at least one product in order to verify that the identity of the at least one product and that the condition of the at least one product detected by the second sensor is new and undamaged; and

redirect movement of the at least one product detected by the first and second sensors on the product advancement surface of the at least one of the conveyors in response to a determination, by the electronic inventory management device, that a verification of the identity of the at least one product failed or that the at least one product is not in a new condition or is in a damaged condition;

storing, on the electronic database, data indicating predefined route information associated with the at least one product; and

comparing, via the electronic inventory management device actual route information of the at least one product based on detection of the at least one product by the third sensor to the predefined route information associated with the at least one product in the electronic database in order to determine whether the actual route of the at least one product moving on the product advancement surface of the at least one of the conveyors is consistent with the predefined route information associated with the at least one product.

11. The method of claim 10, wherein the first sensor includes at least one of a motion-detecting sensor, a photo sensor, a radio frequency identification (RFID) sensor, an optical sensor, a barcode sensor, and a digital camera sensor.

12. The method of claim 10, wherein the second sensor includes at least one of a weight sensor, a volumetric sensor, and a size sensor.

13. The method of claim 10, further comprising:

providing a control unit coupled to the conveyors and configured to control directional movement of the conveyors; and

transmitting, via the electronic inventory management device and in response to a successful verification of the identity of the at least one product and that the at least one product is in a new and undamaged condition, a signal to the control unit to cause the control unit to permit the at least one product to continue moving on the product advancement surface of the at least one of the conveyors without being redirected.

14. The method of claim 10, further comprising transmitting, via the electronic inventory management device and in response to a determination, by the electronic inventory management device, that a verification of the identity of the at least one product failed or that the at least one product is not in a new condition or is in a damaged condition, an electronic error message to an electronic device of a worker at the product distribution facility.

15. The method of claim 10, further comprising redirecting, via the electronic inventory management device and in response to a determination by the electronic inventory management device that the actual route of the at least one product moving on the product advancement surface of the at least one of the conveyors is inconsistent with the predefined route information associated with the at least one product in the electronic database, movement of the at least one product along the product advancement surface onto a path consistent with the predefined route information associated with the at least one product.

16. The method of claim 15, further comprising:

providing a plurality of transfer nodes interconnecting the plurality of conveyors, each of the transfer nodes configured to permit transfer of the at least one product between the product advancement surface of one of the conveyors and the product advancement surface of another one of the conveyors; and

redirecting, via the electronic inventory management device, the route of the at least one product onto the path consistent with the route information associated with the at least one product via at least one of the transfer nodes.

17. The method of claim 15, further comprising transmitting, via the electronic inventory management device and in response to the determination by the electronic inventory management device that the actual route of the at least one product moving on the product advancement surface of the at least one of the conveyors is inconsistent with the route information associated with the at least one product, an electronic error message to an electronic device of a worker at the product distribution facility.

18. A method for sorting and tracking products at a product distribution facility, the method comprising:

providing a plurality of interconnected conveyors configured to move the products;

providing a first sensor positioned proximate a product advancement surface of at least one of the conveyors and configured to detect at least one identifying characteristic of at least one product moving on the product advancement surface;

providing a second sensor positioned proximate the product advancement surface and configured to detect at least one physical characteristic of the at least one product moving on the product advancement surface;

providing an electronic database storing inventory management data including;

data indicating predefined identifying characteristic and physical characteristic information associated with the at least one product, the predefined identifying characteristic and physical characteristic information corresponding to the at least one product when in a new condition and undamaged; and

data indicating actual identifying characteristic information associated with the at least one product, the actual identifying characteristic information corresponding to the at least one product when detected by the first sensor during movement of the at least one product along the product advancement surface;

data indicating actual physical characteristic information associated with the at least one product, the actual physical characteristic information corresponding to the at least one product when detected by the second sensor during movement of the at least one product along the product advancement surface; and

providing a processor-based electronic inventory management device in communication with the first and second sensors and the electronic database, the electronic inventory management device being configured obtain the inventory management data stored in the electronic database and, based on the obtained inventory management data, to;

compare the data indicating the actual identifying characteristic information associated with the at least one product detected by the first sensor during movement on the product advancement surface to the data indicating the predefined identifying characteristic information associated with the at least one product in order to determine an identity of the at least one product detected by the first sensor;

compare the data indicating the actual physical characteristic information associated with the at least one product detected by the second sensor during movement on the product advancement surface to the data indicating the predefined physical characteristic information associated with the at least one product in order to verify that the identity of the at least one product and that the condition of the at least one product detected by the second sensor is new and undamaged; and

redirect movement of the at least one product detected by the first and second sensors on the product advancement surface of the at least one of the conveyors in response to a determination, by the electronic inventory management device, that a verification of the identity of the at least one product failed or that the at least one product is not in a new condition or is in a damaged condition;

storing, on the electronic database, order information associated with the at least one product moving on the product advancement surface;

obtaining, via the electronic inventory management device, the order information associated with the at least one product from the electronic database after a successful verification by the electronic inventory management device of the identity of the at least one product and that the at least one product is in a new and undamaged condition; and

determining, via the electronic inventory management device, whether the verified identity of the at least one product moving on the product advancement surface of the at least one of the conveyors is consistent with the order information associated with the at least one product obtained by the electronic inventory management device from the electronic database.