If you get lost or injured in the wilderness, where there is no mobile coverage, you could not call for help earlier. However, your smartphone today can still help you in this situation thanks to a new application designed at the University of Alicante of Spain.
When the application is activated by the user, it will emit periodic Wi-Fi signals that act as a warning light that can be detected over a distance of several kilometers. This signal contains information such as a user’s GPS coordinates along with a text message like “I am injured” or “I am disoriented.”
To receive the signal, rescue teams will need a receptor device equipped with a small antenna connected to their own smartphone.
“There is no system in the world that uses Wi-Fi signals to geolocate a smartphone,” GS said. José Ángel Berná, project leader said. “There are devices that allow you to detect mobile signals from a smartphone and determine its location but cost about $ 80,000. [khoảng US $ 95.629] and require the use of helicopters. “
In contrast, if you buy and use a small antenna-connected receptor connected to your smartphone, it costs around € 600 ($ 717).
The technology has been tested on land and at sea by Guardia Civil Special Rescue Groups, and the Armed Forces and Maritime Services.
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