Autonomous Grass Sculpting Cutting Element Height Adjustment

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Solution Overview

Problem

Existing grass sculpting methods require human intervention, leading to inefficiencies and design inconsistencies, as they lack autonomous obstacle detection and adjustment capabilities, resulting in increased time and energy expenditure for managing unmown areas around obstacles.

Innovation Solution

A vehicle equipped with a sensing unit and control unit that autonomously adjusts the height of cutting elements in response to detected obstacles, allowing for autonomous grass sculpting and pattern formation without human intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If human intervention is used to manage obstacles and adjust cutting elements, then reliability is improved, but productivity deteriorates due to increased time and energy expenditure

Engineering Contradiction:
ImprovereliabilityVSAvoidproductivity
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The robotic device autonomously detects obstacles using sensing units and automatically adjusts cutting element heights without human intervention. The control unit processes sensor data and executes height adjustments independently, enabling the system to serve itself by managing obstacles and maintaining cutting operations continuously without requiring human operator input.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system employs sensing units that continuously monitor the environment and provide feedback to the control unit about obstacle positions and cutting element states. This feedback loop enables real-time automatic adjustment of cutting element heights in response to detected obstacles, ensuring reliable obstacle management while maintaining continuous productivity.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If cutting elements are adjusted manually in response to obstacles, then adaptability is improved, but loss of time increases due to interruption of cutting operations

Engineering Contradiction:
ImproveadaptabilityVSAvoidloss of time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The sensing units detect obstacles in advance before they interfere with cutting operations. The control unit receives this advance information and automatically adjusts cutting element heights proactively, allowing the system to adapt to obstacles before they cause interruptions or damage, thereby maintaining continuous cutting operations without time loss.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The automated obstacle detection and response system enables continuous cutting operations by immediately responding to obstacles without interrupting the overall workflow. The control unit manages cutting element adjustments during or between cutting cycles, ensuring that the useful cutting action continues uninterrupted while still adapting to obstacle conditions.

Inventive Principle:
Principle #20Continuity of useful action

3Manufacturing precision

If the vehicle stops to adjust cutting elements manually, then manufacturing precision is improved, but productivity deteriorates due to stopped operations

Engineering Contradiction:
Improvemanufacturing precisionVSAvoidproductivity
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The system dynamically adjusts cutting element heights while the vehicle is in motion or during transition periods, rather than requiring the vehicle to stop. The control unit coordinates height adjustments with vehicle movement, enabling precise cutting element positioning without interrupting productivity, thus maintaining both manufacturing precision and continuous operation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS8666550B2Autonomous cutting element for sculpting grass
Publication Date: 2014.03.04 DEERE & CO
  • US8666550B2 patent drawing
  • US8666550B2 patent drawing
  • US8666550B2 patent drawing

AI summary

An apparatus comprises a vehicle, a sensing unit, and a control unit. The vehicle is movable in a path and has a first number of cutting elements. The sensing unit detects an obstacle in the path. The control unit is connected to the first number of cutting elements and is configured to autonomously adjust a height of a second number of cutting elements of the first number of cutting elements in response to the sensing unit detecting the obstacle in the path.