Vision-Guided Dimmable Cabin Windows for Flight-Phase Light Control

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Solution Overview

Problem

Traditional aircraft cabin window shades require manual operation and flight crew intervention to ensure optimal light levels, leading to inefficiencies and safety concerns during different flight phases.

Innovation Solution

A vision-based system using cameras and a processing unit to continuously monitor and control the opacity of dimmable windows, adjusting them automatically based on light intensity and flight phase, with optional crew override.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual window shade operation is used, then passengers can control light levels, but flight crew must physically inspect each window ensuring high time consumption and reduced productivity

Engineering Contradiction:

ImproveManual window controlVSAvoidFlight crew inspection efficiency

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The system enables automatic self-monitoring and self-adjustment of window shades through vision-based detection and centralized control, eliminating the need for flight crew to physically inspect each window while maintaining optimal light levels in the cabin

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical inspection by flight crew with an automated vision-based detection system using cameras and image processing algorithms to monitor cabin light levels and control window shades automatically

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If electrically dimmable windows are used, then passengers can control opacity levels, but flight crew still must physically inspect window states requiring additional time and effort

Engineering Contradiction:

ImproveElectrically controllable window opacityVSAvoidFlight crew inspection time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system implements continuous feedback loops where vision sensors monitor cabin illumination levels, process images to detect light intensity, and automatically adjust window shade opacity levels to maintain optimal conditions without requiring flight crew intervention

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent replaces manual inspection of electrically dimmable windows with an automated vision-based monitoring system that uses cameras and image processing to detect and report window states and cabin light levels in real-time

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Loss of information

If window shades are opened during takeoff and landing, then situational awareness is improved, but light intensity in cabin increases requiring manual adjustment

Engineering Contradiction:

ImprovePassenger situational awarenessVSAvoidCabin light intensity

Core Design Contradiction:

Loss of informationVSIllumination intensity

Solution Approach 1:

The system dynamically adjusts window shade opacity levels based on real-time detection of cabin light conditions and flight phase, automatically optimizing the balance between maintaining situational awareness during critical phases and controlling excessive light intensity

Inventive Principle:

Principle #15Dynamics

4Reliability

If window shades are closed during nighttime flights, then passenger sleep is facilitated, but light blocking requires manual verification by flight crew

Engineering Contradiction:

ImproveCabin darkness for passenger sleepVSAvoidManual verification process

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system performs automatic verification of window shade positioning and cabin darkness levels through vision-based detection, eliminating the need for flight crew to manually verify window states while ensuring optimal conditions for passenger sleep during nighttime flights

Inventive Principle:

Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Ensures consistent cabin light levels, enhances passenger comfort, and improves safety by automating window shade control and detecting fires.

Implementation Method 1

a dimmable window having an electrically controllable opacity level

Methodology Applied

Scientific EffectOpacity control: Absorption (EM radiation)

Implementation Method 2

The plurality of cameras continuously capture video within the aircraft cabin and transfer the video stream to the processing unit

Methodology Applied

Scientific EffectLight detection: Photoelectric Effect

Data Source

PatentUS12493203B2Vision based aircraft cabin ambient light control

Publication Date: 2025.12.09 ROSEMOUNT AEROSPACE INC

AI summary

A vision-based aircraft cabin light monitoring/control system is used to maintain the light intensity level within the aircraft cabin at a desired level. The system uses video cameras to continuously monitor the ambient light entering the passenger cabin windows, analyzes the video stream/feed to identify the light intensity level within the cabin, identifies the window whose state should be controlled, and generates commands to control the window through central cabin controllers. The system further compensates for light sources internal to the cabin and monitors the phase of flight to ensure compliance to specific light conditions within the aircraft cabin.