A frontier proposal with a validation plan, not an implemented detector.
Intended capability
Research whether the field could support this proposed outcome: While the home is empty, monitors the pet instead of ignoring it: activity rhythm, unusual distress motion (sustained scratching/pacing), and prolonged abnormal stillness — welfare, not surveillance.
This describes the intended outcome. Readiness is research concept, evidence is class C, 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 Home scene
This is one recorded vertical scenario. It is not separate validation of every capability in the catalog.
01 The physics
A dog or cat is a small but real scatterer: pacing produces low-band periodic motion, scratching a distinctive 4-8Hz burst rhythm, rest near-silence. The armed-home baseline (no humans) makes pet signals the dominant dynamic — the same property pet-immune mode uses to reject them, inverted to observe them.
02 Shared processing path
Armed-away mode -> pet-class band signatures (from the pet-immune classifier, reused) -> activity-rhythm baseline per pet -> deviation alerts (distress-motion rate, abnormal stillness beyond species/size norms) with honest size floor.
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 homes with camera ground truth (owner-consented, for labeling only) across 20 pet-days; report event-class confusion by species/size and the minimum detectable pet size. No public dataset — frontier build.
04 Commercial hypothesis
For the pet household: 'Leave, and still know she is okay — without a camera pointed at your living room.'