AR Evacuation Navigation for Emergency Refuge Guidance
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Solution Overview
Problem
In large public areas like schools and buildings, evacuating people quickly and safely during emergencies such as gunshots or fires is challenging due to complex interior layouts and the difficulty in rapidly informing and guiding numerous individuals, often resulting in high casualties.
Innovation Solution
A navigation method using augmented reality on personal mobile devices, which creates an electronic map, connects door locks to a control system, and uses detection devices to lock doors near emergencies, guiding users through an AR image to a safe refuge area by marking the event location and providing an evacuation route.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional evacuation methods are used in large buildings, then management can inform people to evacuate, but the time required to inform and guide all people is too long, resulting in high casualties
Solution Approach 1:
The patent replaces traditional mechanical evacuation methods (physical announcements, manual guidance) with an electronic information field-based system. Personal mobile devices receive and display evacuation information electronically, transforming the mechanical process of human-to-human communication into an electronic field-based information transmission system, thereby dramatically reducing evacuation time while maintaining safety
Solution Approach 2:
The patent introduces personal mobile devices as intermediaries between the evacuation management system and individuals. These devices receive evacuation information from the system and present it to users through displays and audio outputs, serving as a mediating layer that enables rapid, standardized information dissemination to all occupants simultaneously
2Adaptability or versatility
If complex interior spaces of large buildings are designed, then building functionality is improved, but escape and evacuation become difficult during emergencies
Solution Approach 1:
The patent applies local quality by providing customized evacuation information to each individual based on their specific location within the building. The system determines the user's position and delivers location-specific escape route guidance, ensuring that each person receives information tailored to their local environment rather than generic building-wide announcements
Solution Approach 2:
The patent replaces manual navigation and physical exploration during evacuation with electronic field-based navigation. Personal mobile devices display visual and audio guidance information that substitutes for the need to physically interpret complex building layouts, making evacuation as easy as following on-screen directions regardless of building complexity
3Reliability
If door locks are controlled manually during emergencies, then security can be maintained, but rapid response to changing emergency locations is prevented
Solution Approach 1:
The patent implements dynamic door lock control where locking status automatically changes based on real-time emergency conditions. When an emergency event occurs at a specific location, the system dynamically locks door locks in that area to prevent spread, then dynamically unlocks them when the emergency subsides or when evacuation is complete, allowing continuous adaptation to changing situations
Solution Approach 2:
The patent establishes a feedback loop where the system continuously monitors emergency status and automatically adjusts door lock states accordingly. Detection devices provide feedback about emergency conditions, the control device processes this information, and door locks respond by changing their locking status, creating a closed-loop control system that automatically adapts to emergency developments
Data Source
AI summary
A navigation method for evacuation in an emergency state includes creating a visualized map image based on an outdoor space and at least one indoor space in an area. A plurality of indoor locators and a plurality of outdoor locators are used to locate a personal mobile device held by a person. The personal mobile device is located when a controlled event, such as a gunshot event or a fire event, occurs. An augmented reality image is used to guide the person to an emergency refuge area. A visualized mag image is used to provide the person with information containing the location of the personal mobile device, the controlled event location, the emergency refuge area, and an evacuation route, thereby assisting the person in rapidly and easily moving away from the controlled event location.