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CRITICAL
Vibration anomaly detected
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Anomaly Score
0.81
Line / Station
CCL / CC3
Detection Method
zscore,stl
CRITICAL
Vibration anomaly detected
Anomaly Score
0.80
Line / Station
EWL / EW12
Detection Method
zscore,stl
★ AI Agent Assessment
Root Cause
Progressive mechanical wear or imbalance in rotating components (e.g., wheels, bearings, or traction motors), indicated by a clear upward trend in vibration levels over the past 20 minutes during peak-hour operation.
Severity Assessment
WARNING — AI-confirmed severity
Recommended Action
Schedule immediate inspection after current trip completion; prioritize wheel and bearing checks. Monitor vibration levels continuously during operation and consider reducing speed if values exceed 0.6.
Reasoning
Vibration sensor shows a sustained increase from 0.27 to 0.55 over 20 minutes, with anomaly score 0.80 triggering both z-score and STL methods. Peak-hour operation increases risk of component failure impact. No other sensors currently abnormal, but trending pattern suggests developing mechanical issue.
Analyzed by deepseek