Autonomous Lawn Mower Rework Control From User Satisfaction Feedback

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing autonomous lawn mowing machines lack a method to instruct rework based on user satisfaction, requiring manual intervention to address unsatisfactory work results.

Innovation Solution

A working system equipped with a user state detecting unit, rework determining unit, and actuator controlling unit that autonomously determines the need for rework and controls the working and traveling actuators to perform necessary adjustments based on user satisfaction levels detected through biological information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If the working machine operates autonomously without user feedback mechanisms, then automation level is improved, but the ability to perform rework based on user satisfaction deteriorates

Engineering Contradiction:
Improveautonomous operationVSAvoidrework capability
Core Design Contradiction:
Extent of automationVSAdaptability or versatility

Solution Approach 1:

The system incorporates a user state detecting unit that monitors user satisfaction levels and feeds this information back to the control unit. When the user expresses dissatisfaction with the work results, the control unit receives this feedback and automatically initiates rework operations, resolving the contradiction between autonomous operation and adaptability to user needs.

Inventive Principle:
Principle #23Feedback

2Device complexity

If the working machine lacks user state detection capabilities, then device complexity is reduced, but the ability to detect user satisfaction and perform rework deteriorates

Engineering Contradiction:
Improvesystem structureVSAvoiduser satisfaction detection
Core Design Contradiction:
Device complexityVSDifficulty of detecting and measuring

Solution Approach 1:

The system replaces complex mechanical or manual assessment methods with a biological information detecting unit that uses sensors to detect user states such as facial expressions, voice tone, or physiological signals. This substitution enables user satisfaction detection while maintaining relatively simple device architecture, as the detection is performed automatically through non-invasive sensing rather than complex mechanical interfaces.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If manual intervention is required to instruct rework, then ease of operation is reduced, but control precision over rework timing is improved

Engineering Contradiction:
Improverework instructionVSAvoiduser satisfaction assessment
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The system enables self-service operation where the working machine automatically determines when rework is needed based on user state detection. The control unit monitors user satisfaction levels and autonomously initiates rework operations without requiring manual intervention, thereby improving ease of operation while maintaining precise assessment of user satisfaction through continuous biological information monitoring.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3549422B1Work system and work method
Publication Date: 2021.07.21 HONDA MOTOR CO LTD
  • EP3549422B1 patent drawingFigure 1
  • EP3549422B1 patent drawingFigure 2A~2B
  • EP3549422B1 patent drawingFigure 3~4

AI summary

A working system (100) includes: a working actuator (26) installed on a working machine (1); a camera (21) and a microphone (22) detecting a state of a user changing in accordance with a satisfaction level; a rework determining unit (11) determining whether a rework is needed based on the detected state of the user after a predetermined work is performed by the working machine (1); and an actuator controlling unit (15) controlling the working actuator (26) to perform the rework when it is determined by the rework determining unit (11) that the rework is needed.