Automotive & Transport Shared-family mapped

CabinPulse

Ghost Passenger — Child/Pet Presence Detection

Cabin-occupancy feasibility study; not a child- or pet-safety system and never a safety backstop.

Open demo room Design this solution See how it works

Feasibility path · not a production offer

Cabin Presence Node

This offer is scoped to this capability only. It does not promote sibling catalog entries or replace physical deployment validation.

~$40 parts · 1 Node · ~45 minReview feasibility scope →No charge today · configuration and quote confirmed first

Readiness Shared-family mapped

Mapped to a shared offline runtime family and usable with a recording or compatible ESP32 CSI stream.

Evidence Supported hypothesis

Published physics or adjacent results support the hypothesis; capability-specific product and site validation are still required.

Runtime family Occupancy estimate

Coarse occupancy estimate from calibrated multi-link field activity.

When no ESP32 is connected

No compatible ESP32 stream is connected. Use the bundled Automotive recording; it demonstrates the shared Occupancy estimate runtime, not independent proof of this capability.

Intended capability

Evaluate the sensing evidence for “Ghost Passenger — Child/Pet Presence Detection” 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.

Shared-family mapped

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

Respiration displaces the chest ~5mm at 0.1-0.5Hz, modulating CSI phase on cabin multipath; heartbeat proxy at 0.8-2Hz adds a secondary band. In a static parked cabin the RF channel is otherwise frozen, so even sub-mm periodic motion produces a strong SNR deviation from the empty-cabin baseline.

02 Shared processing path

Micro-Doppler band-pass 0.1-2Hz -> adaptive PCA + MVE anomaly vs rolling empty-cabin manifold -> RTI differential to localize which seat/footwell zone -> cabin mmWave radar static micro-motion energy confirms a living, still occupant before the alert (the radar reports one composite presence; the seat zone stays a CSI verdict).

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

Own-hardware: 2-3 ESP32 nodes in a parked car, N=10 subjects + infant mannequin with breathing simulator, blanket/footwell occlusion matrix; cross-check breathing extraction against OPERAnet respiration ground truth.

04 Commercial hypothesis

Euro NCAP 2025 Child Presence Detection compliance from a small cabin BOM: the WiFi chipset already in the head unit plus an LD2410C-class mmWave radar on a short cable — sold to Tier-1 ADAS product managers and OEM safety leads. Plus tier; the radar's static-presence confirm is what earns the claim.