Bathroom and bedside fall detection with sub-second alerting

A falling body moves fast, then goes still on the floor. That sudden change alters how WiFi waves bounce around the room in a way nothing else does. The system knows what a fall looks like — even in rooms where cameras are never allowed.

In the physics: A fall is a high-velocity vertical collapse: the reflecting human body produces a broadband micro-Doppler burst (transient energy spread to 5-15Hz) followed by a sudden shift of the body's dominant reflection to floor-level delay/height, distinct from sitting or lying.