Aircraft Engine Warning System Alert Indicator Color Mapping
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Solution Overview
Problem
Aircraft crew members face challenges in accurately identifying and responding to engine problems due to the visual and spatial disconnect between polychromatic displays and monochromatic alert indicators, which can lead to errors when shutting down the wrong engine during high-stress situations.
Innovation Solution
Implementing a system where polychromatic displays provide color-coded alerts for engine issues and monochromatic alert indicators, specifically light-emitting diodes emitting a single color, are placed near corresponding engine control knobs to create a mental link and reduce errors, with audio alerts also being used to confirm the correct engine for shutdown.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If polychromatic displays and monochromatic alert indicators are used separately, then information can be conveyed through color coding on displays, but crew members may confuse which engine the alert refers to due to spatial disconnect
Solution Approach 1:
Each alert indicator is assigned a specific color that matches the color used on the display for that particular engine alert. This local color assignment creates a direct visual connection between the alert indicator and the corresponding engine alert on the display, eliminating confusion about which engine the alert refers to.
Solution Approach 2:
The patent introduces a color-mapping relationship as an intermediary between the monochromatic alert indicators and the polychromatic display. By mapping specific colors from the display to specific alert indicators, the system creates a visual bridge that connects the two separate alerting mechanisms, allowing crew members to easily identify which engine the alert refers to.
2Reliability
If multiple alert indicators are used for different engines, then specific engine alerts can be indicated, but the system complexity increases with separate controls and indicators
Solution Approach 1:
The patent makes the alert indicators multi-functional by enabling them to display multiple colors. Each alert indicator can show different colors corresponding to different engines, eliminating the need for separate monochromatic indicators for each engine. This reduces the number of components while maintaining the ability to provide engine-specific alert identification.
Solution Approach 2:
The alert indicators are made dynamic by allowing them to change color based on which engine is experiencing an alert condition. Instead of fixed-color indicators, the system dynamically assigns colors to indicators based on the active engine alert, reducing the number of physical indicators needed while maintaining clear engine-specific identification.
3Ease of manufacture
If monochromatic alert indicators are used, then the indicator design is simple and reliable, but the ability to convey alert severity and engine identity is limited
Solution Approach 1:
The patent changes the color parameter of the alert indicators to convey different types of information. By allowing indicators to display multiple colors, the system can encode both engine identity and alert severity information within the same indicator, maintaining manufacturing simplicity while significantly increasing the information capacity.
Solution Approach 2:
The patent directly applies color changes to alert indicators that were traditionally monochromatic. By implementing multi-color capability in the indicators, the system can display different colors for different engines and potentially different colors for different alert severities, thereby conveying detailed alert information without increasing the number of physical indicators.
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
This configuration reduces the risk of crew errors by providing redundant and intuitive visual and auditory cues, ensuring the correct engine is shut down during emergencies, thereby enhancing safety and operational efficiency.
Implementation Method 1
alert indicators above the engine control knobs, the alert indicators being monochromatic... the alert indicators including light bulbs that, when turned on, emit light in a single color that does not change
Data Source
AI summary
In an embodiment, an apparatus includes: a display; and an engine control panel disposed below the display, the engine control panel including: engine control knobs; and alert indicators above the engine control knobs, the alert indicators including light bulbs that, when turned on, emit light in a single color that does not change, the display capable of rendering more colors than the alert indicators.