Tuesday, September 25, 2018
New tech uses Wi-Fi to count people through walls – TechCrunch
Whether you’re trying to figure out how many students are attending your lectures or how many evil aliens have taken your Space Force brethren hostage, Wi-Fi can now be used to count them all. The system, created by researchers at UC Santa Barbara, uses a single Wi-Fi router outside of the room to measure attenuation and signal drops. From the release: The transmitter sends a wireless signal
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