Visual Detection of Clear Air Turbulence via Optical Refraction
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Solution Overview
Problem
Current methods are ineffective in detecting and forecasting clear air turbulence, which poses a significant risk to aircraft safety and passenger comfort as it is difficult to predict and detect, especially in cloudless conditions.
Innovation Solution
A system utilizing cameras and associated software to detect small fluctuations in the visual scene caused by turbulence, measuring its characteristics to estimate magnitude and distance, and providing pilots with real-time indications to maneuver around turbulent pockets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current detection methods are used, then device complexity is reduced, but measurement precision of turbulence is insufficient
Solution Approach 1:
The patent replaces traditional mechanical or electronic turbulence detection systems with an optical-based visual detection system using cameras and image processing. This substitution enables precise measurement of clear air turbulence by analyzing visual scene fluctuations, achieving high measurement precision while maintaining relatively simple device complexity.
Solution Approach 2:
The patent introduces visual scene fluctuations as an intermediary medium to detect turbulence. By capturing and analyzing the fluctuations in the visual scene caused by turbulence, the system indirectly measures turbulence characteristics with high precision without requiring direct contact or complex sensors in the turbulent air.
2Reliability
If visual detection method is implemented, then reliability of turbulence detection is improved, but device complexity increases
Solution Approach 1:
The patent employs a camera system that can serve multiple functions: capturing visual scenes for turbulence detection, providing pilots with visual information about atmospheric conditions, and potentially recording data for post-flight analysis. This multi-functionality improves detection reliability while minimizing the increase in device complexity by using a single versatile platform.
3Loss of time
If real-time turbulence detection is achieved, then loss of time for pilot response is reduced, but use of energy by the detection system increases
Solution Approach 1:
The patent implements periodic capture of visual scenes at defined time intervals rather than continuous real-time processing. This periodic action provides timely turbulence detection information to pilots while significantly reducing the energy consumption of the detection system compared to continuous operation, achieving an optimal balance between response time and energy usage.
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
Enhances air safety by allowing pilots to avoid unexpected turbulence, reducing structural stress on aircraft, improving passenger comfort, and extending the operational lifespan of aircraft components by minimizing exposure to turbulent conditions.
Implementation Method 1
detects small fluctuations in a visual scene that are caused by turbulence in the atmosphere
Data Source
AI summary
Presented is a system and method for detecting clear air turbulence comprising an image capturing element, a lens having focal length adapted to focus a scene onto the image capturing element such that the combination of the lens and array of pixels are capable of optically resolving any visual distortions of features in the scene that are caused by turbulent air, and a processor. The processor compares the image with a subsequent image, or a stored image of the scene, to detect a change in refraction of light received from the feature in the scene that is due to turbulence and produces an indication of the area of turbulence in the scene.