All capabilities
Smart Buildings Shared-family mapped

PathTracer

AfterHours Tracer: Through-Wall Intrusion & Tailgate Path

Pilot after-hours presence and zone-transition evidence; not identity, exact tracking, or guaranteed intrusion detection.

Readiness Shared-family mapped

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

Evidence Strong theory Supported hypothesis

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

Runtime family Intrusion event

Entry or unexpected-presence event relative to a learned empty-space baseline.

When no ESP32 is connected

No compatible ESP32 stream is connected. Use the bundled Buildings recording; it demonstrates the shared Intrusion event runtime, not independent proof of this capability.

Intended capability

Pilot this intended outcome through the shared Intrusion event family, then validate it against site-specific ground truth: After-hours device-free intrusion detection with continuous track reconstruction through interior walls — where the intruder entered, the path walked, which rooms were dwelled in — plus tailgating detection at secure doors (two bodies, one badge).

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 Buildings scene

This is one recorded vertical scenario. It is not separate validation of every capability in the catalog.

01 The physics

A moving human is an unignorable Doppler source and shadowing body even NLOS (through-wall LOS/NLOS AUC 0.69 proven); RTI differential attenuation across the mesh triangulates position to 0.5-1m and sequential frames give trajectory; two closely-spaced walkers produce separable RTI blobs and distinct gait micro-Doppler cadences at a doorway.

02 Shared processing path

MVE anomaly on quiet-hours baseline (trigger) -> Doppler gait confirms human (vs HVAC/robot vacuum via machine-vs-human discriminator) -> RTI differential imaging tracks the trajectory -> Kalman track smoothing; tailgate mode: RTI blob count + gait-cadence separation in the door zone against badge events.

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 EHUNAM for tracking accuracy; WiMANS for two-person separation at close spacing; own-hardware: scripted after-hours intrusions across a 3-room office comparing track vs floorplan ground truth and door-badge logs.

04 Commercial hypothesis

For the corporate security director: 'Alarm systems tell you something moved; we hand your guards the intruder's footpath on the floorplan, through walls — camera-free by default.' An optional event-gated snapshot at the entry point can be added as evidence: a single bounded capture on the intrusion verdict, detected on-device and stored locally, never a stream, never on by default.