Wi-Fi Access Point Evacuation Routing With Real-Time Density Maps
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Solution Overview
Problem
Existing emergency evacuation systems lack real-time feedback and intelligence, leading to potential mass panic and inefficient use of exit routes during emergencies, as individuals often follow popular paths rather than optimal routes that may change due to obstructions.
Innovation Solution
A cloud-based system utilizing Wi-Fi access points to generate real-time density maps and optimal evacuation routes, leveraging artificial intelligence to dynamically adjust routing based on connectivity, throughput, and environmental factors, and providing personalized evacuation instructions to individuals through connected devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hardwired local control boxes are used for emergency evacuation systems, then system reliability is improved, but real-time adaptability and intelligence are lost
Solution Approach 1:
The patent introduces Wi-Fi access points as intermediary devices between the hardwired control system and evacuationees. These APs receive commands from the reliable hardwired system and translate them into dynamic digital guidance displayed on personal devices, bridging the gap between system reliability and real-time adaptability.
Solution Approach 2:
The patent replaces traditional mechanical signage and static physical indicators with digital displays on mobile devices. This substitution allows the evacuation guidance system to dynamically update routes in real-time while maintaining the reliability of the underlying hardwired control infrastructure.
2Ease of manufacture
If static printed exit route signs are used, then installation simplicity is improved, but real-time feedback and dynamic routing capability are lost
Solution Approach 1:
The patent transforms static printed signs into dynamic digital displays on mobile devices. The evacuation routes are no longer fixed but can be updated in real-time based on changing conditions such as smoke detection, fire location, and crowd density, eliminating information loss while maintaining ease of deployment through existing mobile infrastructure.
Solution Approach 2:
The patent makes mobile devices serve multiple functions: they act as dynamic signage, personal navigation guides, and real-time feedback receivers. This universal use of existing devices eliminates the need for specialized static signage while providing comprehensive real-time information.
3Device complexity
If individuals choose exit routes independently based on habit or visibility, then evacuation system complexity is reduced, but evacuation efficiency and safety are worsened due to mass panic and suboptimal route selection
Solution Approach 1:
The patent implements real-time feedback loops where the system monitors evacuation progress, crowd density, and environmental conditions, then dynamically adjusts and communicates optimized routes back to individuals. This feedback mechanism guides people away from congested areas and toward optimal exits without requiring complex centralized control.
Solution Approach 2:
The patent pre-configures multiple potential evacuation routes and establishes communication channels with all individuals before emergencies occur. When an emergency arises, the system can immediately activate and guide individuals along pre-planned optimal routes rather than allowing chaotic independent decision-making.
Data Source
AI summary
A cloud-based intelligence to emergency evacuation systems using Wi-Fi access points over data communication systems. A layout of emergency exits for a building being monitored and AP locations within the building layout is configured. A density map is generated from a number of stations within radio range of each AP including stations that are connected and stations that are not connected. An emergency that requires evacuation of people from the building from an emergency system associated with the building is detected. In response, an optimal evacuation route from each AP based on the density map and the building layout is generated. Evacuation instructions for each AP can be displayed on the stations within range of each AP.