Tactile Directional Guide System for Emergency Evacuation
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Solution Overview
Problem
Existing emergency evacuation systems are ineffective for individuals with visual or hearing impairments, as they rely on visual exit signs and auditory alerts, which may not function in smoky environments or be easily localized.
Innovation Solution
A tactile directional guide system that uses a vibrational module with linearly arrayed members and vibrators to provide directional information through sequential vibrations, allowing individuals to feel the direction to the nearest emergency exit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual exit signs and auditory alerts are used for emergency evacuation, then the system is simple and easy to implement, but it is ineffective for individuals with visual or hearing impairments and in smoky environments
Solution Approach 1:
The system divides the evacuation guidance function into multiple distributed vibrational modules placed throughout the corridor, each independently providing tactile directional information. This segmentation allows the system to serve visually impaired individuals effectively while maintaining manageable complexity through modular deployment
Solution Approach 2:
The patent introduces tactile vibration as an intermediary medium between the evacuation system and users with visual or hearing impairments. The vibrational modules serve as a mediator that translates directional information into a sensory modality accessible to all users regardless of visual or auditory capabilities
2Reliability
If illuminated exit signs are used, then the system requires minimal components, but it fails when visibility is poor such as in smoke-filled corridors
Solution Approach 1:
The system employs mechanical vibration through vibrational modules that generate tactile feedback along the corridor. This mechanical vibration approach provides directional guidance that is independent of visual conditions, ensuring reliability in smoke-filled environments where illuminated signs fail
Solution Approach 2:
The patent substitutes the optical mechanism (illuminated signs) with a mechanical vibration mechanism. This replacement eliminates dependence on visibility conditions while providing robust directional guidance through tactile feedback that functions reliably in smoky environments
3Reliability
If auditory alerts are used, then the system is simple to implement, but it is ineffective for individuals with hearing impairments and for localizing the exact source of sound
Solution Approach 1:
The system segments the auditory alert function into multiple distributed vibrational sources, each providing localized tactile feedback. This segmentation enables hearing-impaired individuals to receive directional information through touch while the distributed nature of modules keeps system complexity manageable through modular architecture
Solution Approach 2:
The patent introduces tactile vibration as an intermediary that replaces auditory alerts for hearing-impaired individuals. The vibrational modules mediate the transmission of directional information through a sensory channel (touch) that is accessible to all users regardless of hearing capabilities
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
The system effectively guides individuals with visual or hearing impairments to safety during emergencies by providing a tactile means of directional information that is independent of visual or auditory cues.
Implementation Method 1
A tactile directional guide system uses a vibrational module with linearly arrayed members and vibrators to provide directional information through sequential vibrations
Data Source
AI summary
The tactile directional guide system provides directional information in the form of vibrations for use during emergency evacuations and the like. The tactile directional guide system includes a vibrational module adapted for mounting on a support surface, such as the floor or wall of a hallway or corridor, as non-limiting examples. The vibrational module includes a plurality of members linearly arrayed along a longitudinal direction and a plurality of vibrators respectively coupled to the plurality of members. A controller is in communication with the plurality of vibrators and is configured to selectively sequentially actuate the plurality of vibrators in either a forward longitudinal direction or a rearward longitudinal direction to provide a tactile directional output.