Caregiver Presence & Interaction Verification

Two people in a home disturb the WiFi field more than one, and in different places at once. The system can tell whether the caregiver and the resident were together in the same room, and for how long — without recording anything about who they are.

In the physics: Two bodies create separable RTI attenuation blobs and additive Doppler energy; occupancy counting at r=0.9 is proven. Assisted-transfer events (two tracks converging at bed/chair followed by a coordinated vertical-velocity chirp) have a distinct joint micro-Doppler signature versus two people in separate rooms.