Multi-Color LED Emergency Alerts With Dynamic Evacuation Guidance
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Solution Overview
Problem
Existing emergency notification systems fail to provide clear indication of the type of emergency event and dynamic evacuation path guidance, relying on pre-set plans that do not adapt to changing emergency situations.
Innovation Solution
A system utilizing multi-color LED notification appliances, sensors, and processing circuitry to detect emergency events, assign colors to events, and provide dynamic evacuation path guidance through controlled light characteristics and audio outputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If Xenon bulbs are used in notification appliances, then high illumination intensity is achieved, but high current consumption and short lifespan occur
Solution Approach 1:
The patent replaces Xenon bulbs with LED light sources that emit infrared radiation, fundamentally changing the operational parameters of the notification appliance. The LED-based system operates at lower voltages and currents while maintaining effective notification capability through infrared detection, thereby resolving the contradiction between illumination intensity and energy consumption
Solution Approach 2:
The patent substitutes the thermal incandescent mechanism of Xenon bulbs with a solid-state LED emission mechanism. This replacement eliminates the high current consumption and short lifespan associated with Xenon bulbs while achieving the same notification function through infrared radiation detection
2Device complexity
If single-color visual indicators are used, then simple device structure is maintained, but inability to indicate different emergency types occurs
Solution Approach 1:
The patent employs multi-color LED notification appliances that can emit different colors (red, yellow, green, blue) to indicate different types of emergency events. This single device performs multiple functions - indicating fire, smoke, carbon monoxide, and other emergencies - thereby eliminating the need for multiple separate single-color indicators while providing comprehensive emergency type information
Solution Approach 2:
The patent uses color-coded LED emission to convey different emergency information: red for fire, yellow for smoke, green for carbon monoxide, and blue for other emergencies. This color-change mechanism enables a single notification appliance to communicate multiple emergency types, resolving the contradiction between device simplicity and information completeness
3Device complexity
If static evacuation signage is used, then simple system structure is maintained, but inability to adapt to dynamic emergency situations occurs
Solution Approach 1:
The patent implements dynamic notification appliances that can change their emission characteristics in real-time based on detected emergency conditions. The system uses sensors to detect emergency events and dynamically adjusts the color and pattern of LED emission to guide occupants through changing evacuation routes, thereby providing adaptability while maintaining reasonable system complexity
Solution Approach 2:
The patent incorporates sensor-based feedback mechanisms that continuously monitor emergency conditions and adjust notification appliance output accordingly. The sensors detect emergency events and feed this information back to the control system, which then modifies the LED emission patterns to provide real-time evacuation guidance, enabling the system to adapt to dynamic situations
4Loss of information
If multiple separate notification devices are used for different emergencies, then specific emergency indication is achieved, but increased device complexity and cost occurs
Solution Approach 1:
The patent merges multiple single-function notification devices into a single multi-color LED-based notification appliance. This consolidated device uses a common housing with multiple LED elements that can emit different colors to indicate various emergency types, thereby reducing the total number of devices while maintaining comprehensive emergency indication capability
Solution Approach 2:
The patent designs a universal notification appliance that can indicate multiple emergency types through color-coded LED emission. This single device replaces multiple specialized devices (red indicator for fire, yellow for smoke, etc.) by providing multi-functional capability through programmable color output, thereby reducing system complexity while preserving complete emergency information
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
Enables clear identification of emergency types and guides occupants to the safest evacuation routes in real-time, adapting to changing emergency conditions.
Implementation Method 1
a light emitting diode operable to emit light in a first color and a second color
Implementation Method 2
The control circuit is further configured to control the light emitting diode to emit light in the first color at a first intensity level to indicate a first area in the space is a safe area
Data Source
AI summary
A system for providing emergency alerts is provided. The system includes a plurality of sensors, a plurality of notification appliances, and processing circuitry. Each sensor monitors at least one parameter of a space and generates sensed data. Each notification appliance is operable to emit light in a plurality of colors. The processing circuitry detects, based on the sensed data, that at least one event among a plurality of events has occurred in the space, and determines a first evacuation path from the space that bypasses a location of the detected event. The processing circuitry further operates the plurality of notification appliances to emit light in a color assigned to the detected event among the plurality of colors and provide direction guidance for the first evacuation path. The direction guidance for the first evacuation path is provided by controlling one or more characteristics of the emitted light.