Line-Coupled Drone Charging for Power Line Inspection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electrically propelled flying devices used for monitoring high voltage electric distribution lines face limitations in autonomy due to the weight of carrying a charging base and the need for an extensive infrastructure of charging points, as well as vulnerability to vandalism when not in use.
Innovation Solution
A flying device equipped with a mechanical coupling mechanism that allows it to be securely attached to an electric distribution line, utilizing magnetic induction to charge its onboard battery directly from the line current, eliminating the need for a separate charging base and infrastructure, while also providing protection from vandalism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a charging base is carried by the flying device to enable regular charging during long-distance flights, then the battery can be charged regularly, but the weight of the charging base increases the device weight and limits flying time
Solution Approach 1:
The invention extracts the charging base from the flying device, leaving only the essential charging components (winding and rectifier) on the device while the majority of the charging infrastructure remains stationary on the ground. This separation dramatically reduces the weight carried by the flying device while maintaining the ability to charge regularly during flights.
Solution Approach 2:
The stationary charging base on the ground serves multiple functions: it provides magnetic coupling for energy transfer, acts as a charging station for any flying device that lands nearby, and eliminates the need for dedicated charging infrastructure along the entire flight path. This multi-functionality resolves the contradiction by providing charging capability without the weight penalty.
2Duration of action of moving object
If a charging base is carried by the flying device to enable regular charging, then the battery can be charged regularly, but an infrastructure of charging points must be set up all along the line
Solution Approach 1:
The stationary charging base is designed to serve multiple flying devices and multiple flight routes simultaneously. Instead of requiring dedicated charging points along every possible flight path, a single versatile charging base can support any device that lands within its range, dramatically simplifying the infrastructure requirements while maintaining regular charging capability.
Solution Approach 2:
The flying device performs its own charging operation by simply landing near the stationary base and allowing magnetic coupling to occur. The device autonomously manages the charging process without requiring complex infrastructure or external intervention, reducing the overall system complexity while ensuring regular charging during long-distance operations.
3Reliability
If the flying device is equipped with a mechanical coupling means to attach to the cable for charging and protection, then the device can be secured from vandalism and charged anywhere along the line, but the device complexity increases
Solution Approach 1:
The mechanical coupling means is merged with the magnetic coupling charging mechanism. The same components that enable magnetic coupling for wireless charging also provide the mechanical attachment to the cable. This integration provides both protection (by securing the device to the cable) and charging capability without requiring separate, complex systems for each function.
Solution Approach 2:
The mechanical coupling means serves dual purposes: it provides physical security by attaching the valuable flying device to the cable (preventing theft or vandalism), and simultaneously enables the magnetic coupling necessary for wireless charging. This multi-functionality reduces overall device complexity while achieving both protection and charging objectives.
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
This solution enhances the autonomy of the flying device by enabling charging anywhere along the distribution line, reduces the weight and complexity of charging systems, and provides a secure resting position, thereby increasing operational efficiency and safety.
Implementation Method 1
as soon as a cable (500a) is passed through by a line current, adapted to magnetically cooperate with said cable (500a) so as to charge said battery
Data Source
AI summary
A flying device includes a mechanical coupling that is designed to cooperate with a cable of an electrical distribution line in such a way that the flying device remains secured to the cable in a rest position.