IP Library › Granted Patent US 11,657,634
Granted Patent B2
US 11,657,634 · App. 17/096,183 · Granted May 23, 2023

Control system, control method, and program

Inventors: Tomohisa Takai (Nagoya, JP); Yuhei Yamaguchi (Toyota, JP); Satoshi Toyoshima (Okazaki, JP); Yuta Watanabe (Toyota, JP); Tetsuya Taira (Nagakute, JP); Mikio Honda (Toyota, JP); Shiro Oda (Anjo, JP); Nobuhisa Otsuki (Toyota, JP)
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
G06V40/10G05D1/0088G05D1/0223G05D1/0231G06V10/454G06V10/50G06V10/82G06V20/10
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Quick Facts
Patent No.
US 11,657,634
App. No.
17/096,183
Granted
May 23, 2023
Kind
B2
Abstract

A control system controls an operation mode of a mobile robot that autonomously moves in a predetermined area, and includes a feature detection unit, a classifying unit, and a system controller. The feature detection unit detects features of a person who is present in the vicinity of the mobile robot. The classifying unit classifies the person into a predetermined first group or a predetermined second group based on the features. The system controller selects a first operation mode when the person who belongs to the first group is present in the vicinity of the mobile robot and selects a second operation mode that is different from the first operation mode when the person who belongs to the first group is not present in the vicinity of the mobile robot, thereby controlling the mobile robot.

Claims (26)

1. A control system configured to control an operation mode of a mobile robot that autonomously moves in a predetermined facility, the control system comprising:

a feature detection unit configured to detect features of clothing of a person who is present in the vicinity of the mobile robot;

a classifying unit configured to classify the person into a first group, which is a group of non-staff members of the facility, or a second group, which is a group of staff members of the facility, based on the features of the clothing; and

a system controller configured to select a first operation mode when the person who belongs to the first group is present in the vicinity of the mobile robot and select a second operation mode that is different from the first operation mode when the person who belongs to the first group is not present in the vicinity of the mobile robot, thereby controlling the mobile robot, wherein

the system controller sets a second moving speed of the mobile robot in the second operation mode to be higher than a first moving speed of the mobile robot in the first operation mode, sets the mobile robot to be unable to get on an elevator in the first operation mode, and sets the mobile robot to be able to get on the elevator in the second operation mode, and

when the non-staff member who belongs to the first group is not present in the vicinity of the mobile robot but the density of the staff members who belong to the second group in the vicinity of the mobile robot is higher than a predetermined density, the system controller sets the moving speed to be lower than the second moving speed and selects a third operation mode that is different from the second operation mode where the mobile robot is set to be able to get on the elevator.

2. The control system according to claim 1 , further comprising a camera configured to capture images of an area in the vicinity of the mobile robot and generate image data,

wherein the feature detection unit detects the features of the clothing of the person from the image data generated by the camera.

3. The control system according to claim 2 , wherein the camera is provided in a position that is separated from the mobile robot so as to capture images of the area in the vicinity of the mobile robot.

4. The control system according to claim 3 , wherein

the feature detection unit detects a color tone in a predetermined part of the clothing of the person, and

the classifying unit classifies the person in accordance with the color tone.

5. The control system according to claim 1 , wherein a first moving range of the mobile robot in the first operation mode selected by the system controller is narrower than a second moving range in the second operation mode.

6. The control system according to claim 1 , wherein a range of an area in the vicinity of the mobile robot detected by the feature detection unit is predetermined in accordance with the position where the mobile robot is present.

7. A control method for controlling an operation mode of a mobile robot that autonomously moves in a predetermined facility, the method comprising:

a feature detection step for detecting features of clothing of a person who is present in the vicinity of the mobile robot;

a classification step for classifying the person into a first group, which is a group of non-staff members of the facility, or a second group, which is a group of staff members of the facility, based on the features of the clothing; and

a control step for selecting a first operation mode when the person who belongs to the first group is present in the vicinity of the mobile robot and selecting a second operation mode that is different from the first operation mode when the person who belongs to the first group is not present in the vicinity of the mobile robot, thereby controlling the mobile robot, wherein

the control step sets a second moving speed of the mobile robot in the second operation mode to be higher than a first moving speed of the mobile robot in the first operation mode, sets the mobile robot to be unable to get on an elevator in the first operation mode, and sets the mobile robot to be able to get on the elevator in the second operation mode, and

when the non-staff member is not present in the vicinity of the mobile robot but the density of the staff members in the vicinity of the mobile robot is higher than a predetermined density, the control step sets the moving speed to be lower than the second moving speed and selects a third operation mode that is different from the second operation mode where the mobile robot is set to be able to get on the elevator.

8. A non-transitory computer readable medium storing a program for causing a computer to execute a control method for controlling an operation mode of a mobile robot that autonomously moves in a predetermined facility, the control method comprising:

a feature detection step for detecting features of clothing of a person who is present in the vicinity of the mobile robot;

a classification step for classifying the person into a first group, which is a group of non-staff members of the facility, or a second group, which is a group of staff members of the facility, based on the features of the clothing; and

a control step for selecting a first operation mode when the person who belongs to the first group is present in the vicinity of the mobile robot and selecting a second operation mode that is different from the first operation mode when the person who belongs to the first group is not present in the vicinity of the mobile robot, thereby controlling the mobile robot, wherein

the control step sets a second moving speed of the mobile robot in the second operation mode to be higher than a first moving speed of the mobile robot in the first operation mode, sets the mobile robot to be unable to get on an elevator in the first operation mode, and sets the mobile robot to be able to get on the elevator in the second operation mode, and

when the non-staff member is not present in the vicinity of the mobile robot but the density of the staff members in the vicinity of the mobile robot is higher than a predetermined density, the control step sets the moving speed to be lower than the second moving speed and selects a third operation mode that is different from the second operation mode where the mobile robot is set to be able to get on the elevator.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 21, 2020
From: TAKAI, TOMOHISA; YAMAGUCHI, YUHEI; TOYOSHIMA, SATOSHI; WATANABE, YUTA; TAIRA, TETSUYA; HONDA, MIKIO; ODA, SHIRO; OTSUKI, NOBUHISA
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 054711/0663 →
Priority Claims (1)
JP JP2019-212383 · Nov 25, 2019 · national
Continuity (1)
Related Publication 20210157318A1 · May 27, 2021
Cited By (1)
US 12,518,525