UAV Hydrogen Power Delivery for Long-Range Wireless Transmission

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Solution Overview

Problem

Conventional wireless power transmission using electromagnetic radiation is inefficient over long distances and costly, making it impractical for remote or emergency power needs.

Innovation Solution

A system utilizing unmanned aerial vehicles (UAVs) to transport chemical power transfer medium, such as hydrogen gas, which is converted into electrical power at the destination, enabling efficient power delivery up to 1000 km with high efficiency and minimal infrastructure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If conventional electromagnetic wireless power transmission is used, then power can be transmitted wirelessly, but the efficiency falls off steeply with distance

Engineering Contradiction:
Improvepower transmission efficiencyVSAvoidtransmission distance
Core Design Contradiction:
Loss of energyVSLength of stationary object

Solution Approach 1:

The patent introduces chemical power transfer medium (hydrogen gas) as an intermediary to transport energy from the power source to the power recipient. Instead of directly transmitting electromagnetic energy over long distances with steep efficiency losses, the system converts electrical energy to chemical energy (hydrogen production), transports the hydrogen physically via UAV, then converts it back to electrical energy at the destination. This intermediary approach decouples the transmission efficiency from distance constraints.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the electromagnetic field-based power transmission system with a mechanical/chemical transport system. Rather than relying on EM radiation that suffers from inverse-square law losses, the system uses physical transport of chemical energy carriers (hydrogen gas) through the atmosphere via UAV, substituting electromagnetic transmission with a chemically-mediated energy transfer mechanism that maintains higher efficiency over long distances.

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

2Ease of manufacture

If conventional electromagnetic wireless power transmission is used, then wireless power delivery is achieved, but the cost is high and infrastructure requirements are substantial

Engineering Contradiction:
Improveinfrastructure requirementsVSAvoidpower transmission efficiency
Core Design Contradiction:
Ease of manufactureVSLoss of energy

Solution Approach 1:

The patent segments the power transmission system into independent modular components: hydrogen production units at the source, UAV carriers for transport, and fuel cell generators at the destination. This segmentation eliminates the need for continuous infrastructure (transmission lines, towers, substations) and allows each component to be deployed independently. The system can be manufactured and deployed in discrete units rather than requiring extensive coordinated infrastructure construction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system uses locally available resources at each endpoint - electrical energy and water at the production site for hydrogen generation, and oxygen from the atmosphere at the destination for fuel cell operation. This self-service approach reduces infrastructure requirements by eliminating the need for complex support systems, making the system easier to manufacture and deploy in remote locations without extensive preparatory infrastructure.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If wired power delivery is used, then reliable power transmission is achieved, but it is not available or convenient in remote locations

Engineering Contradiction:
Improvedeployment flexibilityVSAvoidpower delivery availability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent transitions from ground-based wired power delivery to aerial three-dimensional transport using UAVs. By moving the power transmission medium (hydrogen gas) through the air space rather than along ground infrastructure, the system gains access to remote and inaccessible locations that are unreachable by traditional wired systems. This dimensional shift from 2D ground plane to 3D airspace enables deployment flexibility while maintaining reliability through direct delivery to the destination.

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

4Length of stationary object

If far-field electromagnetic transmission is used, then long transmission distance is achieved, but the efficiency is extremely low (e.g., ~2% at 1 km)

Engineering Contradiction:
Improvetransmission distanceVSAvoidpower transmission efficiency
Core Design Contradiction:
Length of stationary objectVSLoss of energy

Solution Approach 1:

The patent fundamentally changes the transmission medium parameter from electromagnetic radiation to chemical energy carrier (hydrogen gas). This parameter change transforms the transmission mechanism from one governed by electromagnetic propagation laws (with steep efficiency decay) to one governed by chemical energy density and physical transport, achieving both long distance and high efficiency simultaneously. The hydrogen gas maintains stable energy density during transport without the inverse-square law losses characteristic of far-field EM transmission.

Inventive Principle:
Principle #35Parameter changes

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

The system achieves high efficiency and extended range power transmission, overcoming the limitations of conventional EM-based systems, providing flexible and scalable power delivery to remote or inaccessible locations.

Implementation Method 1

an onboard power conversion unit including a fuel cell

Methodology Applied
Scientific EffectFuel cell: Fuel Cell

Data Source

PatentUS20260018926A1System and method for wireless power transmission
Publication Date: 2026.01.15 THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA
  • US20260018926A1 patent drawing
  • US20260018926A1 patent drawing
  • US20260018926A1 patent drawing

AI summary

A system for wireless power transmission is disclosed, and includes a plurality of UAVs, each having a transfer medium reservoir, an onboard power conversion unit, a communication module, a navigation module, a power delivery interface, and at least one sensor. Each UAV is configured to interface with a transfer medium source, receive a chemical power transfer medium into the transfer medium reservoir, fly to a target area containing a power recipient having a power demand, identify and land within a landing zone, provide chemical power transfer medium to an endpoint power conversion, and evaluate at least one directive to decide what action to take based on feedback. The system also includes a fleet control system communicatively coupled to the plurality of UAVs and configured to operate the plurality of UAVs as a swarm, generate at least one directive, and distribute the directive to the communication module of each UAV.