Wireless Power UAV Hovering via Electromagnetic Beam Tracking

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Solution Overview

Problem

Current remote-controlled vehicles, particularly Unmanned Air Vehicles (UAVs), face challenges in complex control systems and limited endurance due to power constraints, making sustained hovering flight and efficient surveillance or signal relay difficult.

Innovation Solution

A system that uses an electromagnetic beam to guide and power a remote-controlled vehicle, enabling it to hover and maintain position, with an electromagnetic energy receiver converting the beam into electrical power and sensors controlling the vehicle's position for surveillance or signal relay.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If a UAV carries its own power source to complete a mission, then the mission duration can be extended, but the UAV must be larger to carry the power source

Engineering Contradiction:
Improvemission durationVSAvoidUAV size
Core Design Contradiction:
Duration of action of moving objectVSVolume of moving object

Solution Approach 1:

The power source is extracted from the UAV and placed on the ground. The UAV receives power wirelessly through an electromagnetic beam, eliminating the need to carry heavy batteries or fuel tanks onboard. This extraction principle directly resolves the contradiction by extending mission duration without increasing UAV volume.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

An electromagnetic beam serves as an intermediary to transfer energy from the ground-based power source to the UAV. This mediator enables power transmission without physical connection or onboard storage, allowing the UAV to operate indefinitely without carrying power sources.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a UAV uses hovering flight mode for surveillance, then the surveillance capability is improved, but the power consumption increases substantially

Engineering Contradiction:
Improvesurveillance capabilityVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The power source is removed from the UAV and replaced with wireless power reception. The UAV can hover continuously for surveillance without the power consumption limitation, as power is supplied externally through the electromagnetic beam rather than from finite onboard sources.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The electromagnetic power transmission operates continuously to sustain the UAV's hovering state. This continuous external power supply enables uninterrupted surveillance operations, maintaining the hovering position indefinitely without the intermittent operation constraints of onboard power sources.

Inventive Principle:
Principle #20Continuity of useful action

3Use of energy by moving object

If a UAV uses forward-flight design to reduce power consumption, then the power efficiency is improved, but the surveillance effectiveness deteriorates

Engineering Contradiction:
Improvepower efficiencyVSAvoidsurveillance effectiveness
Core Design Contradiction:
Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

Instead of compromising surveillance effectiveness to achieve power efficiency through forward-flight, the approach is inverted: the UAV hovers (the power-intensive mode) while obtaining power efficiently through wireless transmission. This inversion resolves the contradiction by making hovering viable without onboard power constraints.

Inventive Principle:
Principle #13The other way round (Inversion)

4Measurement precision

If a UAV uses complex control devices to maintain position, then the control precision is improved, but the device complexity increases

Engineering Contradiction:
Improveposition control precisionVSAvoidcontrol system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system uses electromagnetic sensors to detect the position of the electromagnetic beam and provides feedback to the control system. This feedback mechanism enables precise position control by continuously monitoring and adjusting the UAV's location relative to the beam, achieving high precision without overly complex mechanical control devices.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces complex mechanical control systems with an electromagnetic field-based control approach. The electromagnetic beam and sensors create a virtual reference framework that simplifies position control, substituting mechanical complexity with electromagnetic field interactions and software-based control algorithms.

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

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 allows for efficient, sustained hovering and simplified control of remote-controlled vehicles, reducing power requirements and enabling prolonged surveillance or signal relay operations without the need for on-board power sources, enhancing operational flexibility.

Implementation Method 1

electromagnetic energy receiver configured to receive an electromagnetic beam and convert the electromagnetic beam into electrical power

Methodology Applied
Scientific EffectElectromagnetic energy conversion: Electromagnetic Induction

Implementation Method 2

Using electromagnetic sensors on the vehicle to monitor the position of the electromagnetic beam

Methodology Applied
Scientific EffectElectromagnetic detection: Electromagnetic Induction

Data Source

PatentUS8536501B2Virtually attached node
Publication Date: 2013.09.17 THE BOEING CO
  • US8536501B2 patent drawing
  • US8536501B2 patent drawing
  • US8536501B2 patent drawing

AI summary

The present invention provides a position control system for a remote-controlled vehicle, a vehicle operated by the control system, and a method for operating a remote-controlled vehicle. An electromagnetic energy receiver is configured to receive an electromagnetic beam. The electromagnetic energy receiver is further configured to determine a position of the remote-controlled vehicle relative to a position of the electromagnetic beam. The vehicle is directed to maneuver to track the position of the electromagnetic beam.