Shopping facility assistance systems, devices and methods to drive movable item containers

Patent metadata

Field	Value
Publication number	US-10611614-B2
Application number	US-201815892250-A
Country	US
Kind code	B2
Filing date	Feb 8, 2018
Priority date	Mar 6, 2015
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

Some embodiments include a motorized transport unit providing customer assistance at a shopping facility, comprises: a transceiver; a control circuit; a motorized wheel system; a lift system; and a memory coupled to the control circuit and storing computer instructions that when executed by the control circuit cause the control circuit to: activate a motorized wheel system, while continuing to monitor location information, to position the motorized transport unit under the item container and aligned, based on the location information, relative to a frame of the item container; and activate the lift system to lift on the frame of the item container lifting a first portion of the item container such one or more wheels of the item container are lifted off of a floor while two or more other wheels of the item container remain in contact with the floor.

First claim

What is claimed is:

1. A motorized transport unit providing customer assistance at a shopping facility, comprising:
a transceiver configured to wirelessly receive communications from a remote central computer system;
a control circuit coupled with the transceiver;
a motorized wheel system controlled by the control circuit;
a lift system controlled by the control circuit, wherein the lift system comprises at least a pair of arms that are rotatably cooperated with a body of the motorized transport unit;
at least one actuatable clamp positioned on each of the arms and controlled by the control circuit; and
a memory coupled to the control circuit and storing computer instructions that when executed by the control circuit cause the control circuit to:
activate the motorized wheel system, while continuing to monitor location information, to position the motorized transport unit under an item container and aligned, based on the location information, relative to a frame of the item container, wherein the item container is one of a plurality of item containers that are usable by customers and configured to be moved by customers through the shopping facility;
cause the arms of the lift system to rotate to position a portion of the arms under the frame of the item container and position the clamps relative to the frame of the item container;
control the actuatable clamps, while the motorized transport unit is positioned under the item container with the arms rotated to position the portion of the arms under the frame of the item container and aligned relative to the frame of the item container, to engage and removably clamp with the frame of the item container and temporarily secure the motorized transport unit with the item container;
activate the lift system to lift on the frame of the item container lifting a first portion of the item container such one or more wheels of the item container are lifted off of a floor while two or more other wheels of the item container remain in contact with the floor.

2. The motorized transport unit of claim 1 , wherein the control circuit is further configured to activate the motorized wheel system, in accordance with shopping route instructions received from the central computer system, to drive the item container through the shopping facility along a shopping route while the two or more other wheels of the item container continue to be in contact with the floor and supporting a portion of the weight of the item container and products placed into the item container.

3. The motorized transport unit of claim 1 , further comprising:
one or more wireless tag sensors coupled with the control circuit;
wherein the control circuit is further configured to receive, from the one or more wireless tag sensors, the location information comprising tag location information wirelessly detected from multiple different wireless tags positioned at different positions on the item container, and to identify a location and orientation of the item container relative to the motorized transport unit based on the tag location information detected by the one or more wireless tag sensors.

4. The motorized transport unit of claim 3 , wherein the control circuit is further configured to:
wirelessly receive positioning route instructions from the central computer system; and
activate the motorized wheel system to move the motorized transport unit through at least a portion of the shopping facility and to position the motorized transport unit, in accordance with the positioning route instructions, proximate the movable item container such that the one or more wireless tag sensors are capable of sensing at least one of the wireless tags on the item container.

5. The motorized transport unit of claim 1 , further comprising:
one or more traction sensors cooperated with the motorized wheel system and configured to detect a reduction in traction of one or more wheels of the motorized wheel system;
wherein the control circuit is coupled with the one or more traction sensors, and further configured to activate the lift system to adjust a lift height of one side of the item container relative to the one or more wheels corresponding to the detected reduction in traction to increase weight on the one or more wheels relative to other wheels of the motorized wheel system.

6. The motorized transport unit of claim 1 , wherein the lift system comprises a plurality of hydraulic lifts that are spaced relative to each other and upon activation lift the one or more wheels of the item container off of the floor.

7. The motorized transport unit of claim 6 , further comprising:
the body having a top portion and a bottom portion;
wherein the hydraulic lifts cooperate with at least the top portion such that when activated cause the top portion to lift relative to the bottom portion and lifting the first portion of the item container.

8. A motorized transport unit providing customer assistance at a shopping facility, comprising:
a transceiver configured to wirelessly receive communications from a remote central computer system;
a control circuit coupled with the transceiver;
a motorized wheel system controlled by the control circuit;
a lift system controlled by the control circuit, wherein the lift system comprises at least a pair of arms that are rotatably cooperated with a body of the motorized transport unit; and
a memory coupled to the control circuit and storing computer instructions that when executed by the control circuit cause the control circuit to:
activate the motorized wheel system, while continuing to monitor location information, to position the motorized transport unit under an item container and aligned, based on the location information, relative to a frame of the item container, wherein the item container is one of a plurality of item containers that are usable by customers and configured to be moved by customers through the shopping facility;
cause the arms of the lift system to rotate to position a portion of the arms under the frame of the item container; and
activate the lift system to lift on the frame of the item container lifting a first portion of the item container such one or more wheels of the item container are lifted off of a floor while two or more other wheels of the item container remain in contact with the floor;

wherein the lift system comprises a plurality of lifts spaced relative to each other and communicatively coupled with the control circuit, wherein the control circuit is configured to control the lifts to at least partially compensate for a weight imbalance of the item container relative to the motorized transport unit.

9. A motorized transport unit providing customer assistance at a shopping facility, comprising:
a transceiver configured to wirelessly receive communications from a remote central computer system;
a control circuit coupled with the transceiver;
a motorized wheel system controlled by the control circuit;
one or more wireless tag sensors coupled with the control circuit;
a lift system controlled by the control circuit, wherein the lift system comprises at least a pair of arms that are rotatably cooperated with a body of the motorized transport unit; and
a memory coupled to the control circuit and storing computer instructions that when executed by the control circuit cause the control circuit to:
activate the motorized wheel system, while continuing to monitor location information, to position the motorized transport unit under an item container and aligned, based on the location information, relative to a frame of the item container, wherein the item container is one of a plurality of item containers that are usable by customers and configured to be moved by customers t

Assignees

• Walmart Apollo Llc

Inventors

• High Donald R
• Winkle David C
• Atchley Michael D

Classifications

• G01S2201/02

  Indoor positioning, e.g. in covered car-parks, mining facilities, warehouses · CPC title

• G01S1/7038

  Signal details · CPC title

• G01S1/7034

  Mounting or deployment thereof · CPC title

• A47L2201/04

  Automatic control of the travelling movement; Automatic obstacle detection · CPC title

• G10L15/22

  Procedures used during a speech recognition process, e.g. man-machine dialogue · CPC title