Six-Degree-of-Freedom Parallel Robot for Energized Line Work

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Solution Overview

Problem

Existing methods for performing tasks on power lines and electrical towers require either interrupting electrical service, which affects customers, or working with active electrical service, posing risks to workers, leading to inefficiencies and safety concerns.

Innovation Solution

A six-degree-of-freedom robotic device with a steerable tower, 3D positioning module, and stabilisation pillars, allowing tasks to be performed safely and accurately on power lines and towers with or without voltage, using a tool attached to a voltage distribution platform and control module for precise movement and isolation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electrical service is interrupted to perform tasks on power lines, then worker safety is improved, but productivity and customer service deteriorate due to service disruption and scheduling delays

Engineering Contradiction:
Improveworker safetyVSAvoidinstallation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

A robotic device serves as an intermediary between human workers and the hazardous power line environment. The robot performs tasks on energized lines, mediating the interaction between human safety requirements and continuous electrical service needs, eliminating the need for service interruption while protecting workers from electrical hazards

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The robotic system performs tasks autonomously on power lines without requiring human workers to be present in hazardous environments. The robot independently navigates, positions tools, and completes installation tasks, enabling self-service operation that maintains both safety and productivity

Inventive Principle:
Principle #25Self-service

2Productivity

If workers manually perform tasks on power lines, then task completion is achieved, but safety risks increase due to height, electrical exposure, and handling heavy objects

Engineering Contradiction:
Improvetask completionVSAvoidworker safety risks
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces human mechanical operations with a robotic system equipped with specialized tools. The robot uses mechanical arms, grippers, and mounted equipment to perform tasks that would otherwise require workers to manually handle heavy objects at heights near energized lines, eliminating human exposure to harmful factors while maintaining task completion capability

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

Solution Approach 2:

The robotic device acts as an intermediary that interfaces with power lines and installation equipment without requiring human workers to directly interact with hazardous elements. The robot mediates between the safe ground-based control environment and the hazardous work zone on energized lines

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If multiple tasks are scheduled simultaneously on power lines, then installation efficiency improves, but coordination complexity and safety management increase

Engineering Contradiction:
Improvemass installation efficiencyVSAvoidcoordination and safety management
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Multiple robotic systems can operate autonomously and independently on different sections of power lines simultaneously. Each robot self-manages its navigation, tool operation, and safety protocols, eliminating the coordination complexity that would arise from managing multiple human workers in close proximity while enabling mass installation through parallel operations

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4491345B1Six-degree-of-freedom parallel robot for tasks at heights and high voltage
Publication Date: 2025.10.15 I-DE REDES ELÉCTRICAS INTELIGENTES SAU
  • EP4491345B1 patent drawingFigure 1
  • EP4491345B1 patent drawingFigure 2~3

AI summary

A six-degree-of-freedom robotic device for performing tasks of different types on power lines, electrical towers, and other elements of the electrical grid, both in the presence or absence of voltage, preventing a worker from having to perform work at heights, at voltage, in close proximity to voltage, or all at once.