Dynamic Lateral Deviation Display for Flight Crews
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Solution Overview
Problem
Current graphical displays for flight crews, such as perspective conformal lateral deviation symbology, can temporarily disappear or overlap with primary flight information due to changes in aircraft attitude or heading, disrupting continuous awareness of lateral deviation.
Innovation Solution
A dynamic lateral deviation display system that calculates and adjusts the display positions of symbology within defined boundaries, transitioning between conformal and non-conformal symbology to maintain visibility and prevent overlap with primary flight information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If perspective conformal lateral deviation symbology is used to provide intuitive position information, then flight crews can determine position with reduced workload, but the symbology may temporarily disappear from the display at certain attitude and heading orientations
Solution Approach 1:
The system dynamically transitions between perspective conformal lateral deviation symbology and non-conformal lateral deviation indicator based on display position calculations. When the conformal symbology would disappear or overlap primary flight information, the system automatically switches to the non-conformal indicator, ensuring continuous lateral deviation information is always available to flight crews regardless of aircraft attitude or heading.
Solution Approach 2:
The non-conformal lateral deviation indicator serves as an intermediary representation that provides the same functional information as the perspective conformal symbology but in a format that remains visible across all aircraft attitudes and headings. This intermediary form ensures information continuity when the primary conformal display becomes unavailable.
2Measurement precision
If perspective conformal lateral deviation symbology moves on the display to maintain conformal view, then the display accurately represents ground distance, but the symbology may overlap other primary flight information such as altitude or ground speed tapes
Solution Approach 1:
The system dynamically evaluates the display position of perspective conformal lateral deviation symbology relative to primary flight information boundaries. When overlap is detected or anticipated, the system transitions to the non-conformal lateral deviation indicator, which displays in a fixed position that does not interfere with altitude tapes, ground speed tapes, or other primary flight information, thus eliminating display clutter while maintaining measurement accuracy.
Solution Approach 2:
The solution applies different display qualities to different situations: perspective conformal symbology is used when it provides accurate ground distance representation without overlapping, while non-conformal indicator is used when the conformal symbology would cause display clutter. This local application of different display modes optimizes both precision and readability.
Data Source
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AI summary
A method of dynamically displaying lateral deviation in formats on a display is provided. The method comprises assigning one or more positional boundaries for displaying the lateral deviation information, wherein the one or more positional boundaries define areas on a display. The method also comprises calculating display positions of a lateral deviation symbology and determining if each calculated display position is allowed based on where the lateral deviation display would be located, if displayed at each calculated position, in relation to the one or more positional boundaries. The method further comprises, displaying the lateral deviation symbology at the calucalated positions when the calculated positions are allowed, and displaying a lateral deviation indicator when the calculated positions are not allowed.