Recent comments in /f/gadgets

Whatdafuqisgoingon t1_iv8ry3x wrote

Reply to comment by Orcwin in Researchers create a Drone That Can 'See Through Walls' With Wifi | At the University of Waterloo recently fixed one up with a scanning device that is the definition of invasive. by chrisdh79

Using the drones WiFi to call out to your devices and their responses include distance. all a drone would need to do is do fly the perimeter of your house making multiple callouts and then it would be able to make a fairly accurate guess where everything is based on all the TOF calls.

Your router is capable of the same thing but it doesn't tend to move. Wifi triangulation happens in lots of places. Casinos and even in big box public stores like Walmart and Target. They aren't using drones to track you, instead use their multiple antenna's to see which area's of the store you visit.

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[deleted] t1_iv8pg1z wrote

Reply to Researchers create a Drone That Can 'See Through Walls' With Wifi | At the University of Waterloo recently fixed one up with a scanning device that is the definition of invasive. by chrisdh79

Jokes on them, my walls have metal window screen material in them. I can barely use wifi one room over.

Fuck if I know why, it's a cookie cutter 1980s split level in the Pacific Northwest. There's a couple hundred like it here in town. One of the previous owners was either paranoid or used it to resurface the drywall.

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weizXR t1_iv8ftd9 wrote

Reply to Researchers create a Drone That Can 'See Through Walls' With Wifi | At the University of Waterloo recently fixed one up with a scanning device that is the definition of invasive. by chrisdh79

It triangulates Wi-Fi signals, that's all. It does not detect anything visual or even physical, just where sources of Wi-Fi signals are. It does this by seeing the difference in amplitude/strength of the signal depending on where it moves.

It's cool that they bought a drone with Wi-Fi for $20 and the fact they're so cheap now, but beyond that... nothing here is new or even clever.

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Dependent-Clerk8754 t1_iv8du5x wrote

Reply to comment by zain_monti in Researchers create a Drone That Can 'See Through Walls' With Wifi | At the University of Waterloo recently fixed one up with a scanning device that is the definition of invasive. by chrisdh79

The police in the UK can track you from London to Manchester constantly in your car. In the U.S., they have to get a warrant to put a tracker on your car. There are over 1million CCTVs in London.

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