Autonomous mobile robot with adjustable display screen

Patent metadata

Field	Value
Publication number	US-11358274-B2
Application number	US-201916470511-A
Country	US
Kind code	B2
Filing date	Jun 13, 2019
Priority date	Jun 13, 2019
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

An autonomous mobile robot comprising a body and a display screen coupled to the body and configured to display information. A wheel control system is coupled to the body and configured to move the body in a given direction. At least one of a camera, an onboard UWB device, or a sensor is coupled to the body. A central processing unit is in communication with the wheel control system, the display screen, and the at least one camera, onboard UWB device, or sensor. The central processing unit is configured to adjust the orientation of the display screen relative to a user based on information received from the at least one camera, onboard UWB device, or sensor.

First claim

The invention claimed is:

1. An autonomous mobile robot, comprising:
a body;
a display screen coupled to the body and configured to display information;
a wheel control system coupled to the body and configured to move the body in a given direction;
at least one of a camera, an onboard ultra-wideband (UWB) device, or a sensor coupled to the body, the onboard UWB device being configured to receive one or more signals from a mobile UWB device carried by a user; and
a central processing unit in communication with the wheel control system, the display screen, and the at least one camera, onboard UWB device, or sensor,
wherein the central processing unit is configured to adjust the orientation of the display screen relative to the user based on information received from the at least one camera, onboard UWB device, or sensor, and
wherein the central processing unit is configured to continuously orient the viewing direction of the display screen towards the user in response to at least information regarding a position of the user from the onboard UWB device.

2. The robot of claim 1 , wherein the central processing unit is configured to receive a photograph or video from the camera, and in response, identify the user from the photograph or video based on a face or an appearance of the user.

3. The system of claim 1 , wherein a control module of the onboard UWB device is configured to determine an angle of arrival of a signal as received by three transceivers to determine a position angle of the user relative to two of the three transceivers, and then determine the proximity of the user relative to the body based on the two transceivers having the largest position angle.

4. The system of claim 3 , wherein the control module of the onboard UWB device is configured to determine a time difference of arrival of a signal as received by the three transceivers, and then determine a side on which the user is located relative to the body based on the transceiver that first received the signal.

5. The system of claim 4 , wherein each transceiver is coupled to a crystal oscillator and have the same clock signal to determine the time difference of arrival of the signal as received by the three transceivers.

6. The robot of claim 1 , wherein the sensor is a proximity sensor, and wherein the central processing unit is configured to receive information regarding a proximity of the user from the proximity sensor, and in response, orient the viewing direction of the display screen towards the user.

7. The robot of claim 6 , wherein the proximity sensor is a sonar sensor or a LiDAR sensor.

8. The robot of claim 1 , wherein the sensor is an infrared sensor configured to detect thermal radiation, and wherein the central processing unit is configured to receive information regarding a proximity of the user from the infrared sensor, and in response, orient the viewing direction of the display screen towards the user.

9. The robot of claim 1 , wherein the body is in the form of a piece of luggage, a vacuum cleaner, a lawn mower, a shopping cart, or a logistic mobile robot.

10. The robot of claim 1 , wherein the information displayed by the display screen includes a mode of operation, a status of operation, a battery indicator, or one or more buttons for operation.

11. The robot of claim 1 , wherein the orientation of the display screen is adjustable from a first position to a second position that is oriented at an angle relative to the first position.

12. An autonomous mobile robot, comprising:
a body;
a display screen coupled to the body and configured to display information;
an onboard ultra-wideband (UWB) device coupled to the body, the onboard UWB device being configured to receive one or more signals from a mobile UWB device carried by a user;
a wheel control system coupled to the body and configured to move the body in a given direction; and
a central processing unit in communication with the wheel control system and the display screen, wherein the central processing unit is configured to adjust the orientation of the display screen relative to the user based on a recorded speed of the user calculated from at least the onboard UWB device and the mobile UWB device when the autonomous mobile robot is obstructed from detecting the user.

13. The robot of claim 12 , further comprising at least one camera or sensor configured to communicate information to the central processing unit regarding the speed of the user.

14. The robot of claim 12 , wherein the body is in the form of a piece of luggage, a vacuum cleaner, a lawn mower, a shopping cart, or a logistic mobile robot.

15. The robot of claim 12 , wherein the information displayed by the display screen includes a mode of operation, a status of operation, a battery indicator, or one or more buttons for operation.

16. An autonomous mobile robot, comprising:
a body;
a display screen coupled to the body and configured to display information;
an onboard ultra-wideband (UWB) device coupled to the body, the onboard UWB device being configured to receive one or more signals from a mobile UWB device carried by a user;
a wheel control system coupled to the body and configured to move the body in a given direction; and
a central processing unit in communication with the wheel control system and the display screen, wherein the central processing unit is configured to turn the display screen on or off, as well as adjust the orientation of the display screen when turned on, based on a proximity of the user relative to the body calculated from at least the onboard UWB device and the mobile UWB device.

17. The robot of claim 16 , further comprising at least one camera or sensor configured to communicate information to the central processing unit regarding the proximity of the user.

18. The robot of claim 16 , wherein the body is in the form of a piece of luggage, a vacuum cleaner, a lawn mower, a shopping cart, or a logistic mobile robot.

19. The robot of claim 16 , wherein the information displayed by the display screen includes a mode of operation, a status of operation, a battery indicator, or one or more buttons for operation.

Assignees

• Lingdong Tech Beijing Co Ltd

Inventors

• Yaozhang Herrickhui

Classifications

• B25J5/007

  mounted on wheels · CPC title

• B25J13/086

  Proximity sensors · CPC title

• A47L9/2857

  User input or output elements for control, e.g. buttons, switches or displays · CPC title

• B25J9/0009 Primary

  Constructional details, e.g. manipulator supports, bases · CPC title

• A01D34/008

  for automated or remotely controlled operation · CPC title