Robot Placement Height Control for User-Specific Load Handling

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Solution Overview

Problem

Users may find it difficult to place or remove loads from the placement part of an autonomous mobile robot due to a fixed height, which does not accommodate individual user preferences or postures.

Innovation Solution

A control system that recognizes users and adjusts the height of the placement part based on acquired feature information, including past actions, postures, and instructions, to provide a suitable height for each user, incorporating a user recognition unit, feature information acquisition unit, and operation control unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the height of the placement part is kept constant, then the device structure is simple, but the ease of operation deteriorates for users with different heights or postures

Engineering Contradiction:
Improveease of placing/removing loadVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The placement part's height is made dynamically adjustable rather than fixed. The height adjustment mechanism allows the placement part to change its position vertically based on user characteristics, transforming a static structure into a dynamic one that adapts to different operational needs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The height parameter of the placement part is changed based on acquired feature information about the user. The system adjusts the vertical position parameter of the placement part to optimize ease of operation for different users, converting a fixed parameter into a variable one.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the height of the placement part is adjusted for each user, then the ease of operation improves, but the device complexity increases due to additional control mechanisms

Engineering Contradiction:
Improveease of placing/removing loadVSAvoidcontrol system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system performs self-adjustment by automatically acquiring feature information about the user and autonomously determining the appropriate height for the placement part. The autonomous mobile robot serves itself by making height adjustments without requiring manual intervention or complex user interactions.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system acquires feature information about the user (such as height or posture characteristics) and uses this feedback to automatically adjust the placement part height. This closed-loop approach allows the system to adapt to user needs based on acquired information.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11971718B2Control system, control method, and program
Publication Date: 2024.04.30 TOYOTA JIDOSHA KK
  • US11971718B2 patent drawing
  • US11971718B2 patent drawing
  • US11971718B2 patent drawing

AI summary

A control system, a control method, and a program capable of lowering difficulty of a user's work on an autonomous mobile robot having a placement part are provided. A control system for controlling an autonomous mobile robot including a placement part on which a load is placed includes a user recognition unit configured to recognize a user of the placement part, a feature information acquisition unit configured to acquire feature information of the recognized user, and an operation control unit configured to control a height of the placement part based on the feature information.