Aircraft Anti-Collision HUD Display Modes for Situational Awareness
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Solution Overview
Problem
Current anti-collision systems for aircraft, such as GCAS and TCAS, do not allow pilots to simultaneously monitor the position of a threat and follow guidance symbol systems in head-up mode during a collision alert, leading to potential overload and decreased situational awareness.
Innovation Solution
The anti-collision system introduces two display modes: 'action' and 'control' modes, where 'action' mode provides symbols for executing avoidance maneuvers and 'control' mode displays the threat's position, allowing pilots to focus on guidance while ensuring the aircraft is out of danger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If anti-collision systems display both threat position and guidance symbols simultaneously in head-up mode, then pilots can monitor threat position and follow guidance, but the symbol system becomes overloaded and situational awareness decreases
Solution Approach 1:
The display information is segmented into two distinct modes: action mode displays only avoidance maneuver guidance symbols, while control mode displays threat position information. This segmentation prevents information overload by presenting only relevant information at each stage of the collision avoidance process.
Solution Approach 2:
The system dynamically switches between action mode and control mode based on the flight phase. During approach and landing phases when collision risk is highest, the system displays action mode with maneuver guidance. After the maneuver is completed or in other phases, it switches to control mode showing threat position, thereby adapting the information display to the current operational context.
2Reliability
If the system presents threat information continuously during avoidance maneuvers, then pilots can monitor threat position, but pilot focus is diverted from executing the maneuver
Solution Approach 1:
The system prepares the pilot by displaying action mode information (avoidance maneuver guidance symbols) before and during the maneuver execution phase. This preliminary action ensures the pilot has the necessary guidance information ready before needing to execute the maneuver, improving both reliability and ease of operation.
Solution Approach 2:
The system employs periodic switching between action mode and control mode based on flight phase. Action mode is activated during critical approach and landing phases when collision risk is highest, while control mode is used during other phases. This periodic action ensures threat information is presented at appropriate intervals without continuously diverting pilot focus.
Data Source
AI summary
The invention relates to a method for managing an anti-collision system for aircraft, said system comprising means of detecting collision with a threat and at least one head-up viewing device. The symbol system comprises two display modes dedicated to collision detection which are: on the one hand an “action” mode: a potential collision is detected by the system, the symbol system comprises at least one symbol representative of the limits of the disengagement path of the aircraft to avoid the collision and enabling the pilot to engage his avoidance maneuver, and on the other hand a “control” mode: this mode is displayed when the avoidance maneuver is engaged and the collision avoided, the symbol system comprises at least the symbol representative of the limits of the disengagement path of the aircraft and a plan view representing the air space around the aircraft and including at least one representation of the threat.