An air-leak detector replayed on seven months of real sensor data from the air compressor of a Porto metro train. Press play and watch the health score cross the alarm line as each reported leak begins.
The whole record. The marker shows where the replay is; orange bands are the four reported leaks, the divider is where the test months begin.
Live values at the replay cursor, with how far each sits from the February–March baseline.
Leaks #3 and #4 are in the test months: months the detector was never built or tuned on.
| Leak | Reported start | Alarm raised | Delay | Before the repair | Event flagged |
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