Although firefighters have dynamic technology like thermal imaging mask and flame resistant fabric made of fire service and other high-tech equipment, but how to track firefighters inside the building caught fire smoke billowing complex structure of the specific location is still yet to be solved The problem. NASA's Jet Propulsion Laboratory has recently developed an electromagnetic tracking device designed to allow firefighters to track down real-time when they rush into a complex fire site. This reduces the probability of accidents.
This device is called POINTER, which is accurate outdoor, indoor navigation and tracking for emergency responders. Unlike most previous studies focused on radio wave technology, the study envisioned the use of quasi-static electromagnetic fields. Although it has a limiting factor of short transmission distance, it also has its own advantages, making it more suitable for use inside or under complex building structures. Unlike radio waves, the size and wavelength of a quasi-static electromagnetic field can not only be adjusted, but also cannot be bounced back or lose its function when it encounters a wall or is in an underground environment. This also allows it to be deployed in a variety of environments, from open spaces, skyscrapers to underground warehouses.
The team is currently further developing the technology and hopes to reduce the existing shoe box-sized device to a portable device that allows firefighters to put in bags or attach to belt buckles.
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