Aircraft Landing Light Circuit Crosswind Compensation

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Solution Overview

Problem

Existing landing light systems for aircraft are limited by their static illumination and require manual adjustment, which can lead to misalignment during landing due to varying environmental conditions such as crosswinds, increasing the workload for pilots and reducing situational awareness.

Innovation Solution

An automatically adjustable landing light circuit that uses real-time navigation data, environmental information, and control motors to dynamically adjust the landing light projection, aligning it with the runway centerline and compensating for deviations caused by crosswinds, thereby enhancing visibility and reducing pilot workload.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If landing light systems use manual activation and static illumination, then the system structure remains simple, but the adaptability to environmental conditions deteriorates

Engineering Contradiction:
Improveadaptability to environmental conditionsVSAvoidsystem structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The landing light system transitions from static illumination to dynamic adjustment by using control motors to continuously reposition the light projection based on real-time crosswind data, aircraft heading, and runway centerline alignment requirements

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system implements automatic feedback control by processing real-time navigation data and environmental information through a processor that continuously adjusts the landing light projection position to maintain alignment with the runway centerline despite changing conditions

Inventive Principle:
Principle #23Feedback

2Productivity

If landing light systems provide static illumination, then the device complexity remains low, but the productivity during landing operations deteriorates

Engineering Contradiction:
Improvelanding operation efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The landing light system performs self-adjustment by automatically processing navigation data and environmental information to correct its own projection position without requiring manual intervention from the flight crew, thereby improving landing operation efficiency

Inventive Principle:
Principle #25Self-service

3Reliability

If landing light systems use manual adjustment, then the ease of operation is maintained, but the reliability under varying environmental conditions deteriorates

Engineering Contradiction:
Improvealignment accuracy under crosswindsVSAvoidmanual adjustment requirement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system uses real-time feedback from navigation data and environmental sensors to automatically correct landing light projection alignment, ensuring reliable performance under varying crosswind conditions without depending on manual pilot adjustment

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system replaces manual mechanical adjustment with an automated control system that uses processors and control motors to dynamically reposition the landing light projection based on calculated course corrections

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS11377231B2Automatically adjustable landing lights for aircraft
Publication Date: 2022.07.05 HONEYWELL INTERNATIONAL INC
  • US11377231B2 patent drawing
  • US11377231B2 patent drawing
  • US11377231B2 patent drawing

AI summary

An automatically adjustable landing light circuit and method for an aircraft approaching a target are provided. The circuit includes a memory having therein an auto adjustable landing light program, and a processor operationally coupled to a source of real-time navigation data, a source of intended approach information, a source of target geometry, and a source of environmental information including cross-wind data. The processor executes the auto adjustable landing light program, to: determine a course correction, as a function of the cross-wind data, upon determining each occurrence of deviations exceeding respective thresholds for the current heading and an intended heading, the current pitch and an intended pitch, and the current yaw and an intended yaw. The processor generates control motor commands for a landing lights assembly that generates a landing light projection. The control motor commands adjust the landing light projection in accordance with each determined course correction.