Autonomous Lawn Mower Path Control for Striped Grass Imprints
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for creating striped patterns on football field lawns require significant human resources and economic costs, whether through mechanical means or chemical/biological treatments.
Innovation Solution
An autonomous moving device equipped with a grass-pressing mechanism and a controller that enables the device to move in a specific pattern on the lawn, producing alternating imprints to create striped patterns without the need for human intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If mechanical lawn mowers with pressing rollers are adopted to press the lawn, then striped patterns can be produced on the lawn, but additional human resources and economic costs are required
Solution Approach 1:
The patent applies self-service by enabling the lawn mower to autonomously perform the grass-pressing operation that creates striped patterns. The controller automatically controls the grass-pressing mechanism based on the mowing path, eliminating the need for separate manual pressing operations and reducing human resource requirements while maintaining the striped pattern effect
2Shape
If specialized pressing rollers are used to press the lawn before football matches, then alternating shade imprints are produced on the lawn, but additional economic costs are incurred
Solution Approach 1:
The patent merges the mowing function and the grass-pressing function into a single integrated system. The grass-pressing mechanism is combined with the lawn mower, allowing both cutting and pressing operations to be performed simultaneously during one pass, thereby eliminating the need for separate specialized pressing roller equipment and reducing economic costs
3Shape
If chemical or biological methods are adopted to treat the lawn to obtain stripes, then alternating shade patterns are achieved, but additional human resources and economic costs are required
Solution Approach 1:
The patent replaces chemical or biological treatment methods with a mechanical grass-pressing mechanism. By using physical pressing during mowing to create the striped patterns through grass lodging in different directions, the system eliminates the need for chemical applications or biological treatments, thereby reducing human resource requirements
Data Source
AI summary
An autonomous moving device includes: a body; a grass-pressing mechanism including grass-pressing assemblies located on both sides of the body, the grass-pressing mechanism being configured to form imprints on both sides of the body on the lawn, with equal widths on both sides; and a controller configured to: control the autonomous moving device to perform traversal movement for N times in the working area on the lawn; control the autonomous moving device to move along multiple parallel and equally-spaced paths in a single traversal movement, the path spacing between adjacent paths in the single traversal movement being B, and the directions being opposite, so that the grass-pressing mechanism produces an imprint on the lawn; after the N traversal movements, directions of adjacent paths formed by the N traversal movements being opposite, a path spacing between adjacent paths being B′.B′=B/N.