Overhead Power Line UAV Docking Station for Autonomous Charging

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Solution Overview

Problem

Access to electrical power and data communication is a limiting factor for monitoring and surveillance of overhead power transmission lines, especially in remote areas where infrastructure is scarce, and existing drone inspection methods require manual intervention and frequent battery recharging.

Innovation Solution

A docking and charging station (DDC) mounted on overhead power lines that harvests electromagnetic power for charging drones and provides data communication, equipped with a power supply unit, communication module, and docking port for secure and efficient UAV operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual drone inspection is used, then inspection capability is provided, but productivity is low and loss of time is high due to frequent battery recharging and manual operation

Engineering Contradiction:
Improveinspection speedVSAvoidinspection duration
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The drone performs self-charging by docking with the charging station mounted on the power line during inspection operations. The system enables autonomous refueling/recharging without returning to base, allowing continuous operation and eliminating manual intervention for battery changes.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Charging stations are pre-deployed along the power line at strategic locations before inspection missions begin. Drones can access these pre-positioned charging points during their flight path, enabling seamless continuous operation without waiting for base station availability.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If manual drone operation is used, then inspection is possible, but ease of operation is reduced due to need for specialized personnel and manual control

Engineering Contradiction:
Improveoperation simplicityVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The drone system operates autonomously with automated navigation, inspection, and self-charging capabilities. The drone docks automatically with charging stations along the power line and performs inspections without continuous manual control, reducing the need for specialized operators.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Charging stations mounted on power lines serve as intermediaries between the drone and power source. These stations provide automated charging services to passing drones, enabling autonomous operation without direct human intervention in the charging process.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Use of energy by moving object

If power harvesting devices are mounted on conductors, then power access is improved, but device complexity increases due to installation requirements

Engineering Contradiction:
Improvepower availabilityVSAvoidinstallation complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The charging station serves multiple functions: it acts as a power harvesting device from the power line, a charging station for drones, and potentially a communication relay. This multi-functionality justifies the installation complexity by providing comprehensive support for autonomous drone operations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The charging station mounted on the power line conductor acts as an intermediary that harvests power from the high-voltage line and makes it accessible to drones through wireless or contactless charging interfaces, enabling power transfer without direct electrical connection to the high-voltage conductor.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 autonomous and efficient power supply and data transmission to drones, reducing manual intervention and extending inspection duration, with capabilities for real-time data processing and prediction of environmental events.

Implementation Method 1

The power can be supplied permanently such as for surveillance equipment and devices, or temporarily such as for charging drones that attach to the device... power inductive power harvesting

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

Finally, the device provides data processing for third-party equipment thereby eliminating the need for such power-intensive operations to be performed by the equipment thus saving it power for other operations

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentEP4274761B1Electricity and data communication access to unmanned aerial vehicles from overhead power lines
Publication Date: 2025.08.06 LAKI POWER EHF
  • EP4274761B1 patent drawingFigure 1
  • EP4274761B1 patent drawingFigure 2A~2B
  • EP4274761B1 patent drawingFigure 3A~3B

AI summary

The present invention relates to docking and charging station for an unmanned aerial vehicle (UAV) comprising a housing configured to be fastened to an above-ground structure providing ground clearance underneath the housing, the docking and charging station comprising a power supply unit, a communication module, and a docking port for receiving and docking a UAV. Also provided are UAVs configured to dock in the provided docking and charging stations.