Wi-Fi 熱點 => SOS 求救訊號 ???
如果可以讀出方向及距離，雖然理論只有百米有效範圍，相信仍會有助搜索。四月於多倫多舉辦的 CHI2014 (人機交互會議, Computer Human Interaction)將會有更多消息。
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危急時刻，手機 Wi-Fi 熱點說不定能救你一命
Your Phone's Wi-Fi Hotspot Could Act As an SOS Beacon in a Disaster
http://chinese.engadget.com/2014/02/27/smartphone-wifi-rescue-beacon/
http://gizmodo.com/your-phones-wi-fi-hotspot-could-act-as-an-sos-beacon-i-1532322240
http://www.newscientist.com/article/dn25124-phones-wifi-hotspot-acts-as-sos-beacon-in-disasters.html#.Uw_Z9OOSxc8
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CHI 2014 (人機交互會議, Computer Human Interaction)
Help Beacons: Design and Evaluation of an Ad-Hoc Lightweight S.O.S. System for Smartphones
Abstract: The design and evaluation of a lightweight mobile S.O.S. system that facilitates ad-hoc communication between first responders and victims in the face of disruptions of network infrastructure.
http://chi2014.acm.org/program/#s123
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