Color-Coded LED Door Frame for Emergency Evacuation Guidance
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Solution Overview
Problem
Existing emergency exit systems do not efficiently guide individuals to safety during emergencies, particularly in smoke-filled or visually impaired conditions, and lack color-coded pathways to differentiate safe and hazardous directions.
Innovation Solution
A system utilizing LED lights along door frames, with green LEDs guiding evacuees to exits and red LEDs warning against interior sections, powered by a battery pack or hard-wired, triggered by a fire alarm signal from a smoke detector, to create a visible and color-coded path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional emergency exit signs are used, then the system is simple and low-cost, but the visibility and guidance effectiveness is insufficient in smoke-filled or visually impaired conditions
Solution Approach 1:
The door frame is segmented into multiple sections with individual LED lights positioned at strategic locations (top, sides, bottom) to provide comprehensive illumination of the exit pathway, enhancing visibility without requiring a complete system overhaul
Solution Approach 2:
Different colored LEDs (green for safe direction, red for hazardous areas) are used to provide color-coded directional guidance, improving visibility and understanding of safe evacuation paths in smoke-filled conditions
2Productivity
If color-coded LED lights are added to guide evacuees, then evacuation efficiency is improved, but energy consumption and system complexity increase
Solution Approach 1:
The LED lights are activated periodically or on-demand based on emergency detection rather than remaining continuously on, reducing energy consumption while maintaining evacuation guidance effectiveness when needed
Solution Approach 2:
The system changes operational parameters by activating different LED color configurations based on the specific emergency situation and location, optimizing energy use while maintaining high evacuation efficiency
3Adaptability or versatility
If the system is designed to guide both able-bodied and visually impaired individuals, then inclusivity and safety are improved, but device complexity increases
Solution Approach 1:
The LED door frame system serves multiple functions simultaneously: it provides general illumination for able-bodied individuals, color-coded directional guidance for those with visual impairments, and hazard warnings, all through a single integrated system configuration
4Ease of operation
If battery-powered portable units are used, then installation flexibility is improved, but reliability and continuous operation capability deteriorate
Solution Approach 1:
The system is designed with dynamic power source selection capability, allowing transition between battery-powered portable mode for flexible installation and hard-wired mode for continuous reliable operation, adapting to different installation requirements
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
Enhances evacuation efficiency by providing clear illumination and direction to safety for individuals in emergency situations, including those in smoke or with visual impairments, while preventing entry into potentially hazardous areas.
Implementation Method 1
The device being a plurality of light emitting diodes arranged along at least three sides of the exit
Data Source
AI summary
A system and method to illuminate an emergency exit pathway during an event is provided. The system includes a receiver in communication with a transmitter, a lighting device wired to the receiver, and a power source configured to power the lighting device and the receiver. The transmitter is configured to communicate a signal indicative of an even to the receiver. The event is an emergency event requiring evacuation of a space. The space is an enclosed space. The lighting device surrounds at least a portion of an exit for the space and is configured to emit light and illuminate the portion of the exit when the signal is received by the receiver. The lighting device is a plurality of light emitting diodes arranged along at least three sides of the exit The power source is a battery pack.