Wire Guard Device for Automower Boundary Wire Protection
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Solution Overview
Problem
Automower system boundary and guide wires are vulnerable to damage when crossing driveways and hardscapes due to exposure at transition points, where they are at risk from lawn maintenance equipment like edgers and weed eaters.
Innovation Solution
A cable guard device comprising a stake portion and cable guard channel, designed to be driven into the ground near transition points, providing protection for wires both within the yard area and across hardscapes by using malleable materials like stainless steel, aluminum, or plastic, with extensions to cover expansion joints in concrete.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If wires are laid along edger lines to enable automower navigation, then the automower system can operate autonomously, but the wires become exposed and vulnerable to damage from lawn maintenance equipment
Solution Approach 1:
The patent introduces a wire guard device as an intermediary protective structure between the wire and the harmful edger equipment. This guard device includes a channel that receives and protects the wire, with stake portions that anchor it to the ground, effectively mediating the interaction between the wire and external damage sources while preserving the automower's autonomous operation capability
2Reliability
If wires are secured at transition points to prevent damage, then wire protection is improved, but the device complexity increases due to additional components needed
Solution Approach 1:
The wire guard device merges multiple functions into a single integrated structure: the channel protects the wire from damage, the stake portions secure the device to the ground, and the extension portions provide additional protection across hardscapes. This consolidation achieves reliable wire protection while minimizing device complexity by combining protective and anchoring functions in one unit
Solution Approach 2:
The wire guard device is designed with multi-functionality to address various protection needs simultaneously. The channel provides wire protection, the stakes provide anchoring, and the extension portions enable installation across different surfaces including hardscapes and soil. This universal design achieves reliable protection at transition points without requiring multiple separate components
Data Source
AI summary
Disclosed is a cable guard device configured to be driven into ground near a transition point on an edge line delineating a yard area from a hardscape. Embodiments of the cable guard device comprise at least one stake portion, a cable guard channel configured to receive a cable, and a cable guard extension. When the cable is received through the cable guard channel and the at least one stake portion is driven into ground near the transition point on the edge line delineating the yard area from the hardscape, the cable channel guard protects from damage a first portion of the cable over the yard area and the cable guard extension protects from damage a second portion of the cable over the hardscape.