Mapped to a shared offline runtime family and usable with a recording or compatible ESP32 CSI stream.
Intended capability
Evaluate the sensing evidence for “Passenger Down — Fall & Medical Event Detection in Transit” in a stationary, controlled, ground-truthed vehicle study. This is not a vehicle, occupant, child, pet, or driver-safety system.
This describes the intended outcome. Readiness is shared-family mapped, evidence is class B, and a catalog mapping or recording is not proof of this outcome at a real site.
Solution blueprint
See the environment before installing it.
This exact kit is one of 191 first-class designs. It includes geometry, objects, nodes, wording, scenarios, installation, limitations, and catalog-bound readiness.
No rendered revision is available yet.
Bundled recording
A related Automotive scene
This is one recorded vertical scenario. It is not separate validation of every capability in the catalog.
01 The physics
A fall is a high-velocity vertical bulk-motion transient with a characteristic broadband Doppler burst followed by an abrupt transition to a floor-level static or breathing-only channel state; braking-induced sway has a distinct, horizontally-coherent lower-velocity signature.
02 Shared processing path
Doppler transient detection (fall AUC 0.8, class-A core) -> RTI localization of the event to a floor zone -> post-event micro-Doppler breathing check for 'down and responsive vs unresponsive' triage.
This is a capability design path. Components may be shared with other catalog entries; it is not presented as a unique algorithm.
03 Validation plan
OPERAnet and CSI-Bench fall tasks for the detector; own pilot: instrumented bus with staged falls (stunt protocol) during real braking maneuvers to measure false-alarm rate against normal lurching.
04 Commercial hypothesis
Automatic fall evidence and real-time 'passenger down' alerts, camera-free — sold to transit insurers and bus fleet risk managers drowning in slip-and-fall claims.