Wireless Gas Detector Evacuation Routing
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Solution Overview
Problem
Existing gas detection systems face challenges in effectively coordinating evacuations in large facilities, especially when public address systems fail or become damaged, making it difficult to safely direct people away from hazardous gas threats.
Innovation Solution
A wireless gas monitoring system with portable detectors and a central station that uses GPS and signal triangulation to determine gas threat locations and calculate safest evacuation routes, which are then displayed on the detectors for users, allowing for zone-specific and efficient evacuation planning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a public address system is used to coordinate evacuations, then evacuation coordination can be achieved, but the system may fail or become damaged when needed
Solution Approach 1:
The patent uses portable gas detectors with display screens as intermediary devices to communicate evacuation information directly to individuals, bypassing the vulnerable public address system. Each detector receives threat location data and calculates safe evacuation routes, providing redundant communication channels that don't depend on centralized audio systems.
Solution Approach 2:
The evacuation coordination function is segmented from the central monitoring station and distributed to individual portable detectors. Each detector independently processes threat information and provides localized evacuation guidance, eliminating the single point of failure in the public address system and enabling decentralized evacuation coordination.
2Object-affected harmful factors
If the entire facility is evacuated, then all persons are protected, but evacuation efficiency decreases and may not be possible in large facilities
Solution Approach 1:
The system provides localized evacuation guidance tailored to each detector's location and the specific threat position. Instead of uniform facility-wide evacuation, each user receives customized route recommendations based on their real-time proximity to hazardous areas, enabling zone-specific evacuation that protects personnel while maintaining operational efficiency.
Solution Approach 2:
The portable detectors pre-calculate multiple evacuation routes and store safe zone information before threats occur. When a threat is detected, the system immediately displays pre-computed safe routes without requiring real-time calculation or centralized coordination, enabling rapid localized evacuation responses.
3Productivity
If zone-specific evacuation is implemented, then evacuation efficiency improves, but coordination difficulty increases
Solution Approach 1:
Each portable detector independently determines its own evacuation route based on threat location data received from the central station. The devices autonomously calculate safe paths without requiring manual coordination or complex centralized routing algorithms, simplifying the coordination system while enabling efficient zone-specific evacuation.
Data Source
AI summary
A method and apparatus for detecting hazardous gases. The method includes the steps of providing a central station and a plurality of environmental detectors within a protected area, each of the plurality of environmental detectors detecting environmental events within the protected area and reporting detected events to the central station, one of the plurality of environmental detectors detecting an environmental event within the protected area and reporting that event to the central station, the central station determining a location of the detected event and of each of the plurality of environmental detectors within the protected area, the central station dynamically computing a route from the determined location of each of the plurality of environmental detectors to the closest and safest exit based upon the determined location of the detected environmental event and the central station generating and sending a respective map showing the computed route to the closest and safest exit for that environmental detector to each of the plurality of environmental detectors.