Mobile Robot Joystick Light Signals for Mode Visibility

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Solution Overview

Problem

Existing mobile robot operation devices do not allow people in the surroundings to visually recognize the state of the mobile robot, making it difficult to manage and operate effectively, especially when switching between autonomous and manual travel modes.

Innovation Solution

Incorporating a light emitting unit into the operation device, such as a joystick, that emits specific light patterns to indicate the state of the mobile robot, allowing operators to easily recognize its status and mode through visual cues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a manual operation mode is implemented, then the mobile robot can be operated by people, but the state of the mobile robot cannot be visually recognized by people in the surroundings

Engineering Contradiction:
Improvemanual operation capabilityVSAvoidvisual recognition of robot state
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent applies color changes by using light emitting units that emit different colored lights to indicate different operational states of the mobile robot. The light emitting unit changes its emission color based on the current mode (autonomous or manual operation), allowing people to visually recognize the robot's state without additional displays or interfaces.

Inventive Principle:
Principle #32Color changes

2Extent of automation

If autonomous travel mode is used, then the mobile robot can operate automatically, but the state of the mobile robot cannot be visually recognized by people in the surroundings

Engineering Contradiction:
Improveautonomous travel capabilityVSAvoidvisual recognition of robot state
Core Design Contradiction:
Extent of automationVSLoss of information

Solution Approach 1:

The patent uses color changes to indicate the autonomous travel mode. The light emitting unit emits specific colors to show when the robot is in autonomous mode versus manual mode, providing visual feedback to people in the surroundings about the robot's operational state without requiring additional communication interfaces.

Inventive Principle:
Principle #32Color changes

3Device complexity

If no visual indication system is added, then the device complexity remains low, but the state of the mobile robot cannot be visually recognized

Engineering Contradiction:
Improveoperation device structureVSAvoidvisual recognition of robot state
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The patent applies universality by making the light emitting unit serve multiple functions: it indicates both the operational mode (autonomous/manual) and provides visual feedback about the robot's state. This single component performs what would otherwise require multiple separate indication systems, maintaining low device complexity while solving the visual recognition problem.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables effective operation and visual recognition of the mobile robot's state by the operator and surrounding individuals, enhancing safety and operational efficiency by clearly indicating its mode and any potential issues through distinct light emission patterns.

Implementation Method 1

a light emitting unit configured to emit light in a light emission pattern that indicates a state of the mobile robot

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Data Source

PatentUS20240353848A1Operation device and mobile robot
Publication Date: 2024.10.24 TOYOTA JIDOSHA KK
  • US20240353848A1 patent drawing
  • US20240353848A1 patent drawing
  • US20240353848A1 patent drawing

AI summary

An operation device according to the present disclosure includes: an operation unit configured to receive an operation including a direction operation for a mobile robot; and a light emitting unit configured to emit light in a light emission pattern that indicates the state of the mobile robot.