Drone-Tool Electromagnetic Lashing for Power Line Vegetation Work

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Solution Overview

Problem

Existing drone systems face challenges in safely and efficiently maintaining plants and trees near electrical lines due to electromagnetic interference, system overload, and regulatory constraints, particularly in situations where manual or heavy equipment is impractical.

Innovation Solution

A drone equipped with an electromagnetic lashing device for reversible attachment of auxiliary tools, such as pruning tools or anti-icing agents, along with a chassis made of insulating materials, and a communication system to manage electromagnetic interference and ensure compliance with weight regulations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a drone is used to maintain vegetation near electrical lines, then accessibility to hard-to-reach areas is improved, but electromagnetic interference with the drone's electronic components increases

Engineering Contradiction:
Improveaccessibility to hard-to-reach areasVSAvoidelectromagnetic interference
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an electromagnetic shield as an intermediary element between the high-voltage electrical lines and the drone's electronic components. This shield acts as a mediator that blocks or attenuates the electromagnetic interference while allowing the drone to operate in the vicinity of power lines for vegetation maintenance tasks.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional mechanical vegetation maintenance systems (ground-based equipment) with an aerial drone system. This substitution enables access to areas that are mechanically inaccessible to ground equipment, particularly steep or confined spaces near electrical infrastructure.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If the drone carries heavy tools for vegetation maintenance, then the maintenance capability is improved, but the risk of system overload increases

Engineering Contradiction:
Improvemaintenance capabilityVSAvoidsystem overload risk
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent employs a dynamic attachment system for the vegetation maintenance tool that allows the tool to be securely fastened during transport and automatically or manually released when needed. This dynamic coupling enables the drone to carry heavy tools without permanent attachment, reducing structural stress while maintaining capability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent divides the vegetation maintenance system into separate modular components: the drone platform and the detachable tool. This segmentation allows the tool to be transported by the drone and then detached for ground-based operation, distributing the load and reducing the risk of overwhelming the drone's structural and power systems.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If manual vegetation cutting is performed near energized lines, then the ability to work in U0 situations is improved, but the safety risk from electrical arcs increases

Engineering Contradiction:
Improveability to work in U0 situationsVSAvoidelectrical arc risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces the drone as an intermediary platform that performs vegetation maintenance without direct human contact with energized lines. The drone creates a non-conductive barrier between the operator and the electrical hazard, enabling work in U0 situations where vegetation is within 60 cm of energized conductors.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces human-operated cutting equipment with an automated drone-based system. This substitution eliminates the need for operators to physically approach or contact energized lines, reducing the risk of electrical arcs and associated safety hazards.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Power

If ground-based equipment is used for vegetation maintenance, then the cutting power is improved, but the ability to reach inaccessible areas deteriorates

Engineering Contradiction:
Improvecutting powerVSAvoidaccessibility to inaccessible areas
Core Design Contradiction:
PowerVSEase of operation

Solution Approach 1:

The patent transitions the vegetation maintenance operation from the ground plane to the aerial dimension. By deploying the tool from an airborne drone, the system gains access to three-dimensional space, enabling operation in steep, confined, or otherwise inaccessible areas that ground-based equipment cannot reach.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent segments the heavy cutting tool from the propulsion system, allowing the tool to be transported by the drone and then detached for ground-based operation. This segmentation enables the combination of aerial accessibility with ground-based cutting power.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables safe and efficient maintenance of vegetation near electrical lines by reducing electromagnetic interference, preventing system overload, and adhering to weight limits, facilitating easy tool attachment and detachment, and allowing for precise operation.

Implementation Method 1

the lashing device is either an electromagnetic lashing lock capable of reversibly receiving a lashing hook of the lashing means

Methodology Applied
Scientific EffectElectromagnetic force: Lorentz Force

Data Source

PatentEP4134306B1Drone, auxiliary device for such a drone and drone-tool assembly
Publication Date: 2025.11.19 SERVICES INNOVANTS DU PATRIMOINE ARBORE
  • EP4134306B1 patent drawingFigure 1~2a
  • EP4134306B1 patent drawingFigure 2b~2c
  • EP4134306B1 patent drawingFigure 3a

AI summary

The invention relates to a drone comprising a frame (30), at least two rotors (40) connected to the frame (30), and a piloting means (22) connected to the frame (30) and equipped with a control means capable of controlling the at least two rotors (40). The drone (20) further comprises a lashing device (50) capable of being reversibly attached to a lashing means (110) of an auxiliary device (100). The lashing device (50) is an electromagnetic lashing lock capable of reversibly receiving a lashing hook of the lashing means (110).