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Johns Hopkins APL Develops Location-Aware Emergency Alert Technology

John Hopkins APL logoTYSONS CORNER, VA, October 9,  2015 — Johns Hopkins University’s Applied Research Laboratory said it has developed a technology that allows smartphone user to receive accurate location-specific notices from authorities during emergencies, ExecutiveBiz reported Thursday.

Arbitrary-Size Location-Aware Targeting, or ASLAT, works to checks the built-in tracker on mobile devices to determine the type of alert suited to each user and his location relative to the warning area, APL said Wednesday.

“ASLAT uses the location awareness of wireless devices — their internal knowledge of where they are on Earth — to eliminate false negatives and positives when sending an emergency alert across multiple cellular network sites, ” said Emre Gunduzhan, APL’s technical lead for ASLAT.

“Another interesting feature of ASLAT is that it can warn not only people in the immediate vicinity of a hazard, but also people who may have selected that hazard as their destination.”

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David Smith
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