Multisensor system for fire detection and situational awareness
نویسندگان
چکیده
Damage control remains a vital task aboard US Navy vessels, requiring highly accurate and rapid detection of hazardous events and a significant commitment of manpower. Traditionally, crew members monitor compartments and provide assessments verbally to damage control personnel and the ship’s command. However, manual remote monitoring, (e.g., by video surveillance) of sensor data by human observers leads to rapid attention fatigue and, consequently, to missed detections. The need for automatedmonitoring of spaces aboard ship and assessment of events such as chemical dispersal, toxic spills, and fire or flood detection, has stimulated development of multisensor, multicriteria sensing systems.1 Theoretically, multimodal sensing platforms offer benefits over more conventional point detection systems in terms of robustness, sensitivity, selectivity, and applicability.2–5 Automatic, real-time monitoring of ship compartments with low-cost sensors connected to the existing ship infrastructure, including video surveillance, may provide significant reductions in damage control costs. This should reduce manpower requirements while offering the potential for enhanced detection capabilities. Such networked systems present a unique set of challenges.1, 6 The US Naval Research Laboratory (NRL) has developed Volume Sensor (VS), an automatic monitoring system for standoff identification of damage control events, including fires, explosions, pipe ruptures, flooding, and gas release. A component of the Advanced Damage Countermeasures part of the Office of Naval Research’s Future Naval Capabilities program, VS can reduce false positives and improve response times. Figure 1. Example of a sensor suite made with off-the-shelf components.
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