Buildings · Strong theory
RotorPulse: HVAC Plant Health Drift
Warns weeks ahead that a fan, pump or compressor is wearing out.
The physics is solid; our own validation is scheduled.
How it works
Running machinery trembles in a steady rhythm, and that trembling makes WiFi reflections in the plant room flicker in time with it. Worn bearings and loose belts change the rhythm in small, telltale ways. The system tracks each machine's rhythm and flags the drift long before failure.
In the physics: Rotating machinery imposes stable, narrowband micro-Doppler tones (shaft rate + harmonics + blade-pass frequency) on reflected paths; bearing degradation adds sidebands and broadband energy, belt problems add sub-harmonics. Signature drift is mechanical degradation, not environment.
See it work
This is real pipeline output for Buildings, replayed. The exact reading depends on your room.
Go deeper
How the field becomes an answer
How we prove it
CSI-Bench machine-activity subsets for signature separability; own-hardware: ESP32 pair aimed at an AHU, induce imbalance with a clip-on mass and belt-tension changes, verify CUSUM detection lead time vs accelerometer ground truth.
Who it is for
For the O&M contractor: 'Vibration-analyst coverage of every fan and pump in the building for the cost of one accelerometer — failures announce themselves three weeks early over WiFi.'
runtime Runs today in LatentField 2.0 as machine_vibration
The matching solution
Complete first-room estimateFloor Utilization Node3 nodes · ~$130 parts · 90 min Request kit, subscribe, or set up →Compatible DIY hardware options
120 min · advanced
240 min · installer