Chronos: MIT's new Wi-Fi tech is eerily accurate | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it
Wi-Fi could soon have a very detailed geofence, if MIT researchers have their way. They’ve introduced a new project named ‘Chronos’ that helps Wi-Fi signals locate you within “tens of centimeters.”

The team managed this by monitoring several Wi-Fi bands, then cobbling the data together to find out how long a signal takes to find the end user. In knowing the time and distance it takes for a Wi-Fi signal to travel, MIT can create advanced geofencing.