UAV Wireless Charging Coil Alignment Using Electromagnetic Positioning
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Solution Overview
Problem
Existing unmanned aerial vehicle (UAV) charging systems lack precision in positioning, which affects the efficiency of the charging process.
Innovation Solution
The proposed UAV charging system includes a platform with a wireless charging coil assembly and three electromagnets, which create specific magnetic fields. Sensors on the UAV measure these magnetic fields to determine precise positioning and orientation, ensuring efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional charging systems are used without precise positioning mechanisms, then the system structure remains simple, but the charging efficiency and alignment precision deteriorate
Solution Approach 1:
The patent introduces magnetic fields as an intermediary medium between the charging system and UAV. Electromagnets generate magnetic fields that serve as a mediator for positioning and alignment, allowing the UAV to determine its position and orientation without direct mechanical contact or complex visual systems, thus achieving precise positioning while maintaining relatively simple system structure
Solution Approach 2:
The patent replaces traditional mechanical positioning systems with electromagnetic field-based positioning. Instead of using mechanical guides, rails, or complex mechanical alignment mechanisms, the system uses electromagnets to create magnetic fields that the UAV sensors detect, substituting mechanical complexity with electromagnetic field interactions
2Productivity
If precise positioning is implemented using multiple sensors and electromagnets, then charging efficiency improves, but the device complexity and cost increase
Solution Approach 1:
The magnetic field generated by the electromagnets serves multiple functions simultaneously: it provides positioning information, orientation guidance, and charging activation. This multi-functionality reduces the need for separate systems for each function, thereby improving charging efficiency while limiting the increase in overall system complexity
Solution Approach 2:
The system enables the UAV to autonomously determine its position and orientation by detecting magnetic fields and processing sensor data itself. The UAV's onboard processor automatically calculates positioning information and controls the charging process, reducing the need for complex external control systems and improving charging efficiency through autonomous operation
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 system enables precise alignment of the UAV with the charging coil, enhancing charging efficiency and ensuring reliable power transfer.
Implementation Method 1
The first, second, and third electromagnets are disposed on the platform... create magnetic fields with the same frequency
Implementation Method 2
the first sensor and the second sensor are disposed on the unmanned aerial vehicle to measure the magnetic field created by the first electromagnet, the second electromagnet, and the third electromagnet
Implementation Method 3
a wireless charging coil assembly... enabled to detect the current of the coil to determine the charging efficiency
Data Source
AI summary
A unmanned aerial vehicle charging system for charging an unmanned aerial vehicle is provided. The unmanned aerial vehicle charging system includes a platform, a wireless charging coil assembly, a first electromagnet, a second electromagnet, and a third electromagnet. The wireless charging coil assembly is disposed on the platform. A first virtual line and a second virtual line pass through the wireless charging coil assembly, wherein the first virtual line is substantially perpendicular to the second virtual line. The first, second, and third electromagnets are disposed on the platform. The first electromagnet and the second electromagnet are located on opposite sides of the first virtual line. The second electromagnet and the third electromagnet are located on opposite sides of the second virtual line.