IP Library › Granted Patent US 11,266,287
Granted Patent B2
US 11,266,287 · App. 16/425,658 · Granted Mar 8, 2022

Control of autonomous mobile robots

Inventors: Mario Munich (Bedford, MA); Philip Fong (South Pasadena, CA); Vazgen Karapetyan (Pasadena, CA); Andreas Kolling (Pasadena, CA)
Assignee: iRobot Corporation
A47L11/4061G05D1/0219A47L2201/04A47L2201/06G05D2201/0203G05D2201/0215
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Quick Facts
Patent No.
US 11,266,287
App. No.
16/425,658
Granted
Mar 8, 2022
Kind
B2
Abstract

An autonomous mobile robot includes a drive system to support the robot above a surface, a sensor system configured to generate a signal indicative of a location of the robot on the surface, and a controller operably connected to the drive system and the sensor system. The drive system is operable to navigate the robot about the surface. The controller is configured to execute instructions to perform operations including establishing a behavior control zone on the surface, controlling the drive system, in response to establishing the behavior control zone on the surface, to maneuver the robot to a location of the behavior control zone on the surface, and maneuvering, using the drive system, the robot about the surface and initiating a behavior in response to determining, based on the signal indicative of the location of the robot, that the robot is proximate the behavior control zone.

Claims (61)

1. An autonomous mobile robot comprising:

a drive system to support the robot above a surface, the drive system operable to navigate the robot about the surface;

a sensor system configured to generate a signal indicative of a location of the robot on the surface; and

a controller operably connected to the drive system and the sensor system, the controller configured to execute instructions to perform operations comprising:

receiving a user command to define a location of a behavior control zone on the surface;

controlling the drive system, in response to receiving the user command to define the location of the behavior control zone, to maneuver the robot to the defined location of the behavior control zone on the surface to confirm the defined location of the behavior control zone;

after controlling the drive system to maneuver the robot to the defined location of the behavior control zone, establishing the behavior control zone on the surface; and

after establishing the behavior control zone, in a cleaning mission, maneuvering, using the drive system, the robot about the surface and initiating a behavior in response to determining, based on the signal indicative of the location of the robot, that the robot is proximate to the behavior control zone.

2. The robot of claim 1 , further comprising a light indicator system, wherein the controller is operably connected to the light indicator system, and the operations comprise activating the light indicator system in response to controlling the drive system to maneuver the robot to the defined location of the behavior control zone.

3. The robot of claim 2 , wherein activating the light indicator system in response to controlling the drive system to maneuver the robot to the defined location of the behavior control zone comprise operating the light indicator system to indicate a direction of the behavior control zone relative to the location of the robot.

4. The robot of claim 2 , wherein the operations comprise activating the light indicator system in response to the robot being maneuvered to the defined location of the behavior control zone.

5. The robot of claim 1 , wherein controlling the drive system to maneuver the robot to the defined location of the behavior control zone comprises controlling the drive system to navigate the robot through at least a portion of the behavior control zone.

6. The robot of claim 5 , wherein controlling the drive system to navigate the robot through at least the portion of the behavior control zone comprises controlling, in response to wirelessly receiving user instructions, the drive system to navigate the robot through at least the portion of the behavior control zone.

7. The robot of claim 5 , wherein the portion of the behavior control zone comprises a perimeter of the behavior control zone.

8. The robot of claim 5 , wherein the portion of the behavior control zone comprises a path through an interior of the behavior control zone.

9. The robot of claim 1 , wherein the operations further comprise:

transmitting mapping data to cause a mobile device to present a map of the surface, and

receiving from the mobile device a user instruction to establish the behavior control zone.

10. The robot of claim 1 , wherein controlling the drive system to maneuver the robot to the defined location of the behavior control zone comprises controlling the drive system to navigate the robot along a perimeter of the behavior control zone.

11. The robot of claim 1 , wherein:

the surface comprises a first portion having a first surface type and a second portion having a second surface type,

the behavior control zone covers the second portion having the second surface type, and

initiating the behavior in response to determining, based on the signal indicative of the location of the robot, that the robot is proximate to the behavior control zone comprises initiating the behavior in response to determining that the robot is proximate to the second portion of the surface as the robot maneuvers about the first portion of the surface.

12. The robot of claim 1 , wherein the robot comprises a vacuum system to clean the surface, and the behavior comprises adjusting a vacuum power delivered to the vacuum system.

13. The robot of claim 1 , wherein the behavior comprises adjusting a movement speed of the robot.

14. The robot of claim 1 , wherein the behavior comprises adjusting a movement direction of the robot.

15. The robot of claim 14 , wherein adjusting the movement direction of the robot comprises orienting the robot to enter the behavior control zone at an angle.

16. The robot of claim 1 , wherein the behavior control zone is a keep-out zone, and the behavior comprises avoiding the keep-out zone.

17. The robot of claim 1 , wherein the operations comprise:

controlling the drive system to maneuver the robot along a path in a first direction into the behavior control zone, and

in response to detecting that the robot is within the behavior control zone, controlling the drive system to maneuver the robot along the path in a second direction out of the behavior control zone.

18. The robot of claim 1 , wherein the operations comprise:

detecting that the robot is within the behavior control zone, and

preventing initiation of an operation of the robot in response to detecting that the robot is within the behavior control zone.

19. The robot of claim 18 , wherein preventing the initiation of the operation of the robot in response to detecting that the robot is within the behavior control zone comprises preventing initiation of a movement operation of the robot in response to detecting that the robot is within the behavior control zone.

20. The robot of claim 1 , wherein initiating the behavior in response to determining, based on the signal indicative of the location of the robot, that the robot is proximate to the behavior control zone comprises initiating the behavior in response to determining, based on the signal indicative of the location of the robot, that the robot is within a buffer zone around the behavior control zone.

21. The robot of claim 20 , wherein:

the sensor system is configured to generate data indicative of locations of the robot on the surface, and

the operations comprise estimating an uncertainty associated with the data indicative of the locations of the robot, wherein a size of the buffer zone is based on the estimated uncertainty.

22. The robot of claim 21 , wherein the size of the buffer zone is proportional to the estimated uncertainty.

23. The robot of claim 20 , wherein a size of the buffer zone is user-selected, the size being provided by a mobile device.

24. The robot of claim 1 , wherein the behavior control zone covers a first portion of the surface containing an object, and the operations comprise:

updating the behavior control zone to cover a second portion of the surface in response to the object being moved to the second portion of the surface.

25. The autonomous mobile robot of claim 1 , wherein the operations further comprise:

after controlling the drive system to maneuver the robot to the defined location of the behavior control zone and before establishing the behavior control zone, transmitting a signal, in response to the robot being proximate to the defined location of the behavior control zone, to a mobile device to request user confirmation of the defined location of the behavior control zone.

26. The autonomous mobile robot of claim 25 , wherein the operations further comprise:

after transmitting the signal to the mobile device and before establishing the behavior control zone, receiving the user confirmation of the defined location of the behavior control zone,

wherein establishing the behavior control zone comprises establishing the behavior control zone in response to receiving the user confirmation of the defined location of the behavior control zone.

27. A method comprising:

presenting, on a display, a map including a representation of a perimeter of a surface in an environment;

presenting, on the display and overlaid on the map, indicators indicative of features of the environment;

receiving a user instruction to define a location of a behavior control zone on a surface;

after receiving the user instruction, transmitting, to an autonomous mobile robot and in response to receiving the user instruction to define the location of the behavior control zone, data indicative of the defined location of the behavior control zone to cause the robot to move to the defined location of the behavior control zone on the surface to confirm the defined location of the behavior control zone; and

after the robot moves to the defined location of the behavior control zone, establishing the behavior control zone to cause the robot, in a cleaning mission to initiate a behavior in response to the robot being proximate to the behavior control zone as the robot maneuvers about the surface.

28. The method of claim 27 , further comprising:

after the robot moves to the defined location of the behavior control zone and before establishing the behavior control zone, requesting, in response to the robot being proximate to the defined location of the behavior control zone, user confirmation of the defined location of the behavior control zone.

29. The method of claim 28 , further comprising:

after requesting the user confirmation and before establishing the behavior control zone, receiving the user confirmation of the defined location of the behavior control zone,

wherein establishing the behavior control zone comprises establishing the behavior control zone in response to receiving the user confirmation of the defined location of the behavior control zone.

30. The method of claim 27 , wherein transmitting the data indicative of the defined location of the behavior control zone to cause the robot to move to the defined location of the behavior control zone on the surface to confirm the defined location of the behavior control zone comprises:

transmitting the data indicative of the defined location of the behavior control zone to cause the robot to move along at least a portion of a perimeter of the behavior control zone.

Assignments (5)
NOTICE OF ASSIGNMENT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Nov 25, 2025
From: TCG SENIOR FUNDING L.L.C., AS COLLATERAL AGENT
To: SANTRUM HONG KONG CO., LIMITED, AS SUCCESSOR COLLATERAL AGENT
Reel/Frame 073707/0516 →
SECURITY INTEREST Recorded Aug 9, 2023
From: IROBOT CORPORATION
To: TCG SENIOR FUNDING L.L.C., AS COLLATERAL AGENT
Reel/Frame 064532/0856 →
RELEASE OF SECURITY INTEREST Recorded Jul 31, 2023
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: IROBOT CORPORATION
Reel/Frame 064430/0001 →
SECURITY INTEREST Recorded Nov 3, 2022
From: IROBOT CORPORATION
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 061878/0097 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2019
From: MUNICH, MARIO; FONG, PHILIP; KARAPETYAN, VAZGEN; KOLLING, ANDREAS
To: IROBOT CORPORATION
Reel/Frame 049786/0877 →
Continuity (1)
Related Publication 20200375429A1 · Dec 3, 2020
Cited By (3)
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