| 摘要 |
PROBLEM TO BE SOLVED: To provide a plant monitoring system and a plant monitoring method capable of catching an abnormality sign of a plant by electronically accumulating work contents of an operator and analyzing a tendency from the accumulated data in real time.SOLUTION: When the work contents related to a plant operation is electronically input, the work contents are accumulated in a work contents accumulation device together with execution time. An analysis keyword, an analysis unit of the prescribed time width, the number of samples of this analysis unit, an update period, and a tendency determination reference are previously set in the analysis system as analysis conditions. This analysis system analyzes the work contents accumulated in the work contents accumulation device for each update period, and determines whether the appearance tendency of the keyword in the work content in the latest analysis unit at the point of time of the analysis is out of the appearance tendency of the keyword in a retrieval period going back by the number of samples from the point of time of the analysis on the basis of the tendency determination reference.SELECTED DRAWING: Figure 1 |
