Camera-Based Tether Wind Sensing for Aerial Vehicle Compensation
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Solution Overview
Problem
Aerial vehicles operating in windy environments face challenges in accurately determining wind vectors to compensate for wind forces, as existing methods lack precision and reliability in measuring wind speed and direction.
Innovation Solution
The use of a tethered component deployed beneath the aerial vehicle, combined with a camera capturing image data, allows for the determination of wind vectors by analyzing the displacement of the tethered component, employing either physics-based models or predetermined mappings to calculate wind conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional wind measurement methods are used, then the device complexity is reduced, but the measurement precision of wind vectors deteriorates
Solution Approach 1:
The patent introduces a tethered component as an intermediary element between the aerial vehicle and the wind environment. This component serves as a mediator that translates wind forces into observable positional displacements, enabling indirect but precise wind vector measurement through camera-based position tracking rather than direct sensor measurement
Solution Approach 2:
The patent replaces traditional mechanical wind sensors (such as anemometers or wind vanes) with an optical measurement system consisting of a camera and image processing algorithms. This substitution uses optical fields and computational methods to replace mechanical sensing, thereby improving measurement precision while maintaining reasonable system complexity
2Stability of the object's composition
If no wind compensation is performed, then the ease of operation is maintained, but the stability of the aerial vehicle deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the camera continuously monitors the position of the tethered component, the system calculates wind vectors from positional changes, and the aerial vehicle adjusts its flight controls in response to the determined wind conditions. This closed-loop feedback enables automatic wind compensation that maintains stability while managing operational complexity through automation
Solution Approach 2:
The system enables the aerial vehicle to automatically sense and compensate for wind effects without requiring manual pilot intervention. The vehicle performs self-diagnosis of wind conditions through the tethered component's position and autonomously adjusts its flight characteristics, thereby maintaining stability while preserving ease of 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 method enables accurate determination of wind vectors, enabling the aerial vehicle to perform operations such as adjusting its position or orientation to compensate for wind forces, thereby improving operational stability and precision.
Implementation Method 1
When wind is present in the environment, the tethered component may be displaced by the wind, and the position of the tethered component within the image data may thus be indicative of the wind vector
Data Source
AI summary
A method includes causing an aerial vehicle to deploy a tethered component to a particular distance beneath the aerial vehicle by releasing a tether connecting the tethered component to the aerial vehicle. The method also includes obtaining, from a camera connected to the aerial vehicle, image data that represents the tethered component while the tethered component is deployed to the particular distance beneath the aerial vehicle. The method additionally includes determining, based on the image data, a position of the tethered component within the image data. The method further includes determining, based on the position of the tethered component within the image data, a wind vector that represents a wind condition present in an environment of the aerial vehicle. The method yet further includes causing the aerial vehicle to perform an operation based on the wind vector.