Although firefighters already have high-tech equipment such as thermal imaging masks and fire-fighting clothing made of heat-resistant flame-retardant fabrics, how to track the specific location of firefighters inside the complex structure of smoke-fired buildings is still a problem to be solved. . The NASA Jet Propulsion Laboratory has recently developed an electromagnetic tracking device designed to allow firefighters to track in real-time when they rush into a complex fire in a building with a complex structure, thereby reducing the probability of accidents.
This device is called POINTER, which is for precise outdoor, indoor navigation and tracking for emergency responders. Unlike most previous studies focusing on radio wave technology, the study envisioned the use of quasi-static electromagnetic fields. Although it has the limiting factor of short transmission distance, it also has its own advantages, making it better suited for complex building structures or underground. Unlike radio waves, the size and wavelength of a quasi-static electromagnetic field can be adjusted not only when it encounters a wall or in an underground environment, but also does not bounce or lose its effect. This also allows it to be deployed in a variety of environments, from open spaces to skyscrapers to underground warehouses.
The team is currently developing the technology further and hopes to reduce the existing shoebox-sized device to a portable device that allows firefighters to put their bags in or out of belt buckles.
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