Virtual Boundary Adjustment for Collision-Safe Robotic Mowing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing automatic lawn mowers without boundary lines face challenges in determining reliable working boundaries, leading to collision risks due to inaccuracies in boundary mapping and shadow areas, especially when navigating obstacles like walls or fences.
Innovation Solution
A method and device that adjust the initial virtual boundary using an adjustment vector to ensure a safe working boundary by retracting the boundary inward based on the distance differences between the positioning device and the boundary, incorporating shadow area compensation and user deviation corrections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the initial virtual boundary is used directly as the working boundary, then the boundary mapping is simple, but the operating equipment may collide with obstacles due to positioning device distance differences and shadow areas
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing adjustment vectors in a memory device before the operating equipment begins work. The adjustment vectors, which compensate for positioning device distance differences and shadow areas, are determined in advance based on the initial virtual boundary and device dimensions. This allows the boundary to be pre-adjusted to account for potential collision risks without adding real-time computational complexity during operation.
Solution Approach 2:
The patent introduces an adjustment vector as an intermediary element between the initial virtual boundary and the final working boundary. This adjustment vector acts as a mediator that translates the geometric differences (positioning device distance differences and shadow areas) into boundary modifications. The adjustment vector is stored in memory and applied to generate the final working boundary, effectively mediating the transition from a simple boundary to a collision-safe boundary.
2Adaptability or versatility
If the positioning device is mounted at different positions on different devices, then the boundary can be established for various equipment configurations, but the vertical distance differences cause collision risks
Solution Approach 1:
The patent applies local quality by determining adjustment vectors specific to each device configuration and positioning device installation position. The adjustment vector for each local configuration accounts for the specific vertical distance difference caused by that particular mounting position. This allows the system to adapt to different device configurations while maintaining boundary accuracy through localized adjustments rather than a one-size-fits-all approach.
Solution Approach 2:
The patent utilizes parameter changes by modifying the boundary parameters (adjustment vectors) based on the positioning device installation position and device dimensions. When the positioning device is mounted at different positions, the corresponding vertical distance parameter changes, and the adjustment vector parameters are accordingly modified to compensate for these changes. This ensures boundary accuracy is maintained across different device configurations through dynamic parameter adjustment.
Data Source
AI summary
A method, a device, and a storage medium for determining a working boundary of an operating equipment are provided. The method includes: obtaining an initial virtual boundary of an operating area; obtaining an adjustment vector; adjusting a portion of the initial virtual boundary that meets a preset condition at least according to the adjustment vector; and determining the working boundary of the operating equipment according to the adjusted initial virtual boundary.