Aircraft Navigation System for Misaligned Object Detection
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Solution Overview
Problem
Aircraft surface navigation is challenging due to limited 360-degree visibility and reliance on short-range object detection systems, which can lead to undesirable contact with misaligned stationary objects, especially in compact areas and poor weather conditions, posing risks of wingtip collisions.
Innovation Solution
A vehicle navigation system that processes route plans and environmental data to identify potential threats, generating a comprehensive display with visually distinguishable threat symbols and alerts, providing look-ahead information and enabling rerouting to avoid collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pilots rely on visual judgment and short-range object detection systems for surface navigation, then they can identify nearby objects, but they cannot detect misaligned stationary objects at a distance, leading to potential wingtip collisions
Solution Approach 1:
The system performs preliminary detection of stationary objects and their alignment status before the aircraft reaches critical proximity. By processing route plan data and object database information in advance, the system identifies misaligned objects and generates threat alerts ahead of time, extending the effective detection range beyond what short-range sensors can provide.
Solution Approach 2:
The system introduces an intermediary processing layer that combines route plan data with object database information to identify potential threats. This intermediary system correlates the aircraft's intended path with the locations and orientations of stationary objects, detecting misalignments that would be invisible to direct sensor observation alone.
2Reliability
If pilots follow ground operational procedures and use display instruments to identify traffic and objects, then they can navigate the airport surface, but they cannot anticipate dynamic position changes or detect objects with engines off, resulting in misjudgments
Solution Approach 1:
The system continuously compares the aircraft's actual position and route plan with the database of stationary object locations and orientations. This feedback mechanism updates threat assessments in real-time, allowing the system to anticipate dynamic position changes and detect objects that may not be visible on standard cockpit displays, such as aircraft with engines off.
Solution Approach 2:
The system pre-loads and maintains a comprehensive database of stationary object locations, orientations, and identification features before navigation begins. This preliminary preparation enables the system to quickly compare actual conditions against expected conditions, identifying misaligned objects and anomalies without requiring complex real-time sensing of each object.
3Reliability
If the navigation system provides comprehensive environmental data and threat alerts, then collision risk is reduced, but cognitive workload increases due to information processing requirements
Solution Approach 1:
The system applies local quality by providing differentiated information display based on threat level and relevance. Instead of presenting all environmental data uniformly, the system highlights only those stationary objects and route segments that pose actual threats, using visual cues such as color coding and symbolic representation to convey critical information efficiently without overwhelming the pilot.
Solution Approach 2:
The system creates simplified symbolic representations (copies) of the complex environmental data and threat assessments. Rather than requiring pilots to process raw sensor data and database information, the system generates intuitive visual icons and alerts that represent threat conditions, reducing cognitive workload while maintaining collision avoidance capability.
Data Source
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AI summary
Provided is a navigation system that processes a route plan and data from the surrounding environment to identify a potential threat of undesirable contact anywhere along the route plan. The provided navigation system generates an informative, anticipative display of the vehicle's surrounding environment. When a potential threat is identified, the provided navigation system provides a visual threat alert that enables rerouting the vehicle, thereby averting the potential threat.