Smart Buildings Shared-family mapped

StepPulse

Escalator & Moving-Walkway Drive Health

Continuous drive-chain, step-band and handrail health for escalators: loop-periodic impulses, flutter growth, and degradation trend — without stopping the unit or wiring sensors onto moving parts.

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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 Machine vibration

Spectral energy and drift tracking for repeatable machine vibration signatures.

When no ESP32 is connected

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

Intended capability

Pilot this intended outcome through the shared Machine vibration family, then validate it against site-specific ground truth: Continuous drive-chain, step-band and handrail health for escalators: loop-periodic impulses, flutter growth, and degradation trend — without stopping the unit or wiring sensors onto moving parts.

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

Step chain and handrail are large moving reflectors with a strict loop period; splice/defect passage yields a once-per-loop CSI impulse; drive vibration sits at 1-15Hz with harmonics. Same observable class as the proven conveyor-belt adapter, in a public-space geometry.

02 Shared processing path

Edge Doppler-band summary -> cepstral loop-period tracking (loop impulse) + band-ratio drift vs commissioned baseline -> adaptive PCA trend manifold; pedestrian traffic masked by the human band classifier (broadband 1-8Hz vs machine narrowband).

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 on two escalators (one aging, one refurbished): 4 weeks, verify loop-period stability, blind detection of a staged handrail drag, and human-traffic rejection during peak flow.

04 Commercial hypothesis

For facilities: 'Know an escalator is degrading weeks before it stops — from a box on the ceiling, not sensors on the chain.'