The evidence is proven or strong, but this capability still needs a capability-specific ESP32 or Rust runtime adapter.
Intended capability
Validate this target only after a capability-specific adapter and ground-truth study exist: Verifies the two-person rule in restricted aisles and logs lone-worker exposure time in hot aisles — an append-only co-presence ledger for compliance, not a tracking system.
This describes the intended outcome. Readiness is needs edge adapter, 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 Datacenter scene
This is one recorded vertical scenario. It is not separate validation of every capability in the catalog.
01 The physics
Two bodies in a confined aisle produce two separable perturbation modes (eigen rank 2) and additive Doppler energy; one body cannot fake two modes. Aisle geometry (parallel racks) channels multipath along the sensing volume.
02 Shared processing path
Per-aisle empty baseline -> eigen_mode_count: rank >= 2 attestation windows -> co-presence intervals joined with badge events -> exceptions ledger (entered alone, partner left early).
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 in one aisle: scripted one/two/three-person sessions vs access-log ground truth; report rank-2 detection latency and false co-presence rate with fans at full load.
04 Commercial hypothesis
For the compliance officer: 'Prove the two-person rule was followed — without cameras between the racks.'