Dynamic Flight Display Transition for Unusual Attitude Recovery
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Solution Overview
Problem
Existing graphical display systems for flight are ineffective in providing clear cues during unusual attitude conditions, as direct outside views and conformal visual image displays can distract flight crews and make it difficult to ascertain the correct horizon line, especially in extreme angle situations.
Innovation Solution
A method of dynamically transitioning the display into a distinct format during unusual attitude conditions by collecting attitude data, comparing it to a set angle, and gradually fading in a distinct display format that removes non-essential graphics and aligns the horizon line with the zero-pitch reference, minimizing distractions and providing essential data intuitively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If perspective view backgrounds with 3-dimensional terrain and runways are displayed during normal flight, then flight crews are aided during normal flight operations, but flight crews experience difficulty in ascertaining the correct horizon line during unusual attitude conditions
Solution Approach 1:
The display system dynamically transitions between normal and unusual attitude display formats based on detected attitude conditions. The perspective view background is faded out when unusual attitude is detected and faded back in when normal attitude is restored, allowing the display to adapt its characteristics to the current flight condition.
Solution Approach 2:
The system applies different display qualities to different flight conditions. During normal flight, the full perspective view with 3D terrain is displayed. During unusual attitude, the display transitions to a simplified format with enhanced horizon line visibility and reduced distracting elements, applying appropriate visual qualities locally to the situation.
2Loss of information
If perspective view backgrounds are removed during unusual attitude conditions, then horizon line clarity is improved, but flight crews experience distraction or being startled during recovery actions
Solution Approach 1:
The system performs preliminary action by gradually fading out the perspective view background before the unusual attitude condition fully develops or becomes severe. This gradual transition prepares the flight crew for the display change, reducing shock and distraction while still providing clear horizon line information when needed.
Solution Approach 2:
The display system uses periodic assessment of attitude conditions to determine when to transition between display formats. The continuous monitoring and periodic switching between normal and unusual attitude displays ensures smooth transitions that minimize crew distraction while maintaining horizon clarity when required.
3Measurement precision
If a distinct display format is abruptly transitioned during unusual attitude conditions, then clear attitude upset information is provided, but flight crew attention is diverted and confusion increases
Solution Approach 1:
The system gradually fades in the distinct unusual attitude display format over time rather than switching abruptly. This preliminary gradual introduction allows flight crews to adjust their attention and understand the new display format without sudden confusion, while still providing clear attitude upset information.
Solution Approach 2:
The display transition is made dynamic and gradual rather than static and abrupt. The perspective view background is progressively faded out while the unusual attitude display elements are progressively faded in, creating a smooth dynamic transition that maintains crew situational awareness and reduces confusion during the changeover.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
Embodiments of the present invention provide a method of dynamically transitioning into a distinct display format during unusual attitude conditions. In one embodiment, the method includes collecting attitude data, comparing current attitude to a first set attitude angle, and fading a distinct display format into a display for unusual attitude conditions when current attitude is at least equal to the first set attitude angle.