Automated Runway Centerline Tracking for Zero-Visibility Takeoff
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Solution Overview
Problem
Current aircraft systems are unable to safely operate takeoffs in low or no visibility conditions, leading to increased risk of accidents and restricted airport productivity, as they require visual references and specific visibility ranges for safe takeoff procedures.
Innovation Solution
An automated takeoff system that uses onboard sensors and external signals to generate a virtual centerline reference, allowing the aircraft to align and track the runway centerline, even in zero visibility, by controlling the aircraft's pointing direction through control surfaces and actuation systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If visual references and specific visibility ranges are required for takeoff procedures, then safety is maintained under current systems, but airport productivity is restricted and operations cannot proceed in low visibility conditions
Solution Approach 1:
The patent replaces the mechanical/visual reference system with an automated computer vision system using cameras and image processing algorithms. The system captures images of runway markings, processes them through computer vision algorithms to generate virtual centerline references, and provides automated guidance to pilots, eliminating the need for direct visual references while maintaining safety.
Solution Approach 2:
The patent introduces an intermediary computer vision processing system that acts as a mediator between the physical runway environment and the pilot's decision-making. The system processes runway images, generates virtual centerline overlays, and presents processed visual information to pilots, enabling safe operations without direct visual contact with the runway.
2Adaptability or versatility
If automated takeoff systems with virtual centerline generation are implemented, then operations in low or no visibility conditions are enabled, but system complexity increases
Solution Approach 1:
The patent implements a universal computer vision system that can operate across multiple visibility conditions (from clear to no visibility) and various runway environments. The same core image capture and processing infrastructure serves multiple functions: generating virtual centerlines, assessing runway conditions, and providing guidance in different weather scenarios, reducing the need for separate specialized systems.
Solution Approach 2:
The system incorporates self-calibration and self-verification capabilities where the computer vision algorithm automatically adjusts to different runway markings, lighting conditions, and environmental factors without requiring manual reconfiguration. The system self-validates the generated virtual centerline against detected runway features, reducing operational complexity.
Data Source
AI summary
A no/low visibility automatic takeoff system for an aircraft obtains a runway reference centerline and aircraft pointing direction (via the aircraft's sensors) and automatically controls the aircraft pointing direction to track the runway reference centerline. An initial vector is obtained based on the initial position of the aircraft the first piloted initiation of the takeoff roll. After the system obtains a centerline, it automatically tracks the centerline and corrects aircraft trajectory so the aircraft heading closely matches the runway centerline as the aircraft proceeds down the runway.