Autonomous Mower Feedback Control for Uniform Grass Height
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Solution Overview
Problem
Existing techniques for managing grass growth do not effectively address the issue of optimal mowing height arrangement, leading to suboptimal finish quality in mowing operations.
Innovation Solution
An autonomous working machine equipped with a mower body, a controller, and a rear camera that acquires three-dimensional images of vegetation after mowing, evaluates the shape of the vegetation based on contour lines, and adjusts mowing parameters to ensure uniform height and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional grass growth measurement techniques are used, then grass growth conditions can be monitored, but mowing height arrangement cannot be optimized
Solution Approach 1:
The system captures images of the grass group after mowing, evaluates the shape based on contour lines, and uses this feedback information to determine appropriate work operation content for optimizing mowing height arrangement
Solution Approach 2:
The patent replaces traditional mechanical measurement methods with an optical imaging system that uses cameras to capture images and automated image processing to evaluate mowing quality, enabling both measurement and optimization functions
2Productivity
If mowing work is performed without shape evaluation, then mowing operations can be completed, but finish quality is suboptimal
Solution Approach 1:
The system provides real-time feedback on mowing quality through shape evaluation of the grass group, allowing immediate adjustment of work operation content to improve finish quality while maintaining productivity
Solution Approach 2:
The system evaluates the shape of the grass group after mowing and determines appropriate work operation content in advance for subsequent mowing operations, preventing quality issues before they occur
Data Source
AI summary
Provided is an autonomous working machine capable of taking appropriate measures for arranging a mowing height in mowing work and improving a finish quality of the mowing work. The autonomous working machine includes: a mower body that mows a vegetation group including a plurality of pieces of the vegetation while traveling; a controller that controls the mower body based on a recorded work operation content; and an imager that is directed rearward in an advancing direction of the mower body, in which the controller is configured to, based on an image of the vegetation group acquired by the imager, evaluate a shape of the vegetation group.