| 摘要 |
<p>The present invention determines the soundness of a sensor by estimating an accident event using equipment operation signals, setting a sensor group the correlation of which is compared on the basis of the accident event, and comparing the correlation between sensors using the set sensor group when an accident has occurred in a nuclear power plant. More specifically, a sensor soundness determination method for determining the soundness of a sensor is characterized by estimating an accident event using equipment signals, setting a sensor group that is correlated in a state where the accident event has occurred, calculating a sensor abnormality degree from a sensor signal using the sensor group, and determining that the sensor is abnormal when the sensor abnormality degree exceeds a threshold value.</p> |
