Building vibration monitoring and change detection

The problem

Building damage is usually only discovered when a visible crack appears — a late stage. Periodic engineering inspections are costly and done only every few years, so the gap between inspections is exactly when deterioration happens unnoticed.

How it works

1. LearningThe units record the building's natural vibration over several days.
2. Building the fingerprintA profile of normal vibration is built for each measurement point.
3. ComparisonEach new reading is compared with its point's fingerprint.
4. AlertsAn alert is raised on persistent deviation, not momentary.

Project features

• A reference fingerprint is built in the first days, then comparisons are made with the same building, not a generic standard.
• Three measurement points show which part of the building changed.
• Continuous local logging that isn't lost when the internet drops.
• The alert fires when the threshold is exceeded, not on every vibration.

Expected challenges

These are the main obstacles to expect during the build, laid out clearly so you know them before you start.

• Natural vibration differs between day and night, so the fingerprint must account for time.
• A passing truck or nearby construction can cause a false deviation.
• Sensor mounting is an essential part of the project: any looseness gives phantom readings.
• Real change is very slow, so the project needs patience and long-term logging.

The consultation gives you a solution for each one.