WLAN sensing. Off the shelf mesh wifi systems are capable of sensing people reliably. This includes qty, position, motion, & gestures. Here is the IEEE spec due for approval in a year or two: https://www.ieee802.org/11/Reports/tgbf_update.htm I have mixed feelings on the tech. The home security implications are amazing, and things like automatic fall detection for the elderly would be a literal lifesaver. Small busin…
oh my god