Occupancy-Aware Evacuation Routing for Smoke-Filled Buildings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing smoke detectors in buildings often fail to guide individuals effectively during emergencies, leading to confusion and increased casualties due to unknown safest exits and poor visibility, especially in smoke-filled environments.
Innovation Solution
An intelligent evacuation system utilizing sensory and decision nodes that detect occupancy and evacuation conditions, determining optimal evacuation routes based on occupancy information, condition type, severity, and building layout, and conveying these routes through audible messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If smoke detectors are used to detect fire, then fire detection capability is improved, but effective evacuation guidance is not provided leading to casualties
Solution Approach 1:
The system continuously monitors occupancy information from multiple nodes and dynamically adjusts evacuation route guidance based on real-time conditions. The central controller receives updates from occupancy units and modifies route recommendations to account for changing building conditions and occupant locations, creating a closed-loop feedback system that improves evacuation effectiveness.
Solution Approach 2:
The building is divided into multiple zones with individual occupancy detection nodes. Each node independently monitors its local area and reports to a central controller, which synthesizes the information to determine optimal evacuation routes. This segmentation allows for localized detection while maintaining system-wide coordination for comprehensive evacuation guidance.
2Adaptability or versatility
If multiple exits are provided in the building, then evacuation options are increased, but individuals cannot determine which exit is safest
Solution Approach 1:
A central controller acts as an intermediary between the multiple occupancy detection nodes and the evacuees. It receives occupancy information from all nodes, processes the data to determine which exits are safest based on current conditions, and communicates the recommended routes to individuals through the network. This intermediary consolidates information from multiple sources and provides coordinated guidance.
Solution Approach 2:
Different parts of the building have different occupancy conditions and exit safety characteristics. The system tailors evacuation guidance to local conditions by directing individuals from specific zones to specific exits based on real-time occupancy data. Each node provides localized information that is synthesized into zone-specific route recommendations rather than uniform guidance for all occupants.
3Measurement precision
If occupancy information is collected from multiple nodes, then route determination accuracy is improved, but system complexity increases
Solution Approach 1:
The occupancy detection system is segmented into independent nodes distributed throughout the building. Each node is a simple unit with an occupancy sensor and communication capability that independently monitors its local area. This segmentation allows for high measurement precision through multiple data points while keeping individual components simple and the overall system manageable through modular architecture.
Solution Approach 2:
Each occupancy node is designed as a universal module that performs multiple functions: detecting occupancy, transmitting data to the central controller, and receiving guidance information to relay to occupants. This multi-functionality reduces overall system complexity by using standardized components rather than specialized devices for each function, while still achieving precise occupancy measurement through the network of nodes.
Data Source
AI summary
A system includes a first sensor configured to identify information regarding an emergency condition associated with a structure and a second sensor configured to identify an occupancy pattern regarding the structure. The system also includes a processor operatively coupled to the first sensor, the second sensor, and a transceiver. The processor is configured to determine a severity of the emergency condition based at least in part on the information regarding the emergency condition and prioritize rescues within the structure based at least in part on the occupancy pattern. The system also includes the transceiver which is configured to transmit an identification of the emergency condition, a location of the structure, the occupancy pattern, the prioritization of rescues, and the severity of the emergency condition.