Monitoring Human Presence at home using WiFi signals

Hi All,
I’m a researcher turned entrepreneur two years ago.
My passion is detecting human presence at home using WiFi radiowaves from existing WiFi devices.
Our solution turns any WiFi-enabled device into motion sensors just by software, e.g. WiFi routers, home appliances, tablets, etc. In this way anyone can get sensing information that can be used for detection of presence and spot hidden patterns in daily routines, potentially improving habits and setting smart triggers for other insights.

We believe that as starting point no additional hardware is required for such quantified self approach and it would be great to exchange some ideas on the data and insight we are getting by monitoring home occupancy through WiFi signals 24/7 .