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Uber Geek
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# 226268 29-Dec-2017 09:29
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"If you're lost or injured in the wilderness, there's a good chance that there won't be cellular coverage where you are – that means you can't just phone for help. Your smartphone may still get you found, however, thanks to a new app designed at Spain's Universidad de Alicante.

When the app is activated by the user, it periodically emits a Wi-Fi signal that acts as a distress beacon which can be detected over a distance of several kilometers. The signal contains information such as the user's GPS coordinates, along with a text message such as 'I am injured' or 'I am disoriented.'

To pick up the signal, rescue crews will require a small antenna-equipped receptor device that connects to a smartphone of their own."

https://newatlas.com/smartphone-wifi-beacon-lost-wilderness/52765/

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269 posts

Ultimate Geek
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  # 1926601 29-Dec-2017 16:24
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Tests have already been done in New Zealand with using cell base stations on rescue helicopters for locating and communicating with cellphones in areas where there otherwise is no signal, which seems to be a lot more sensible than using wifi.

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