ABNORMALITY PREDICTION/RECOVERY ASSISTANCE SYSTEM, ABNORMALITY PREDICTION/RECOVERY ASSISTANCE METHOD, AND WATER TREATMENT SYSTEM

摘要

The present invention provides assistance so as to make it possible to estimate a location hypothesized to be an underlying cause of an abnormality in a plant immediately after the abnormality is predicted, and to implement a countermeasure in a short time. An abnormality prediction/recovery assistance system (48) applied in a plant (10) is provided with: an abnormality prediction engine (30) that, at the same time as the degree of an abnormality is predicted on the basis of the values of input items, derives an input item that has a large effect on the abnormality when the prediction is made; a knowledge base (42) for holding knowledge data constructed by combining first data in which the upstream/downstream relationship is stored for the plurality of facilities constituting the plant, and second data in which the relationship of the upstream and downstream impact when an abnormality occurs is stored for each of the facilities in the plant as a cause-and-effect relationship; a potential-underlying-cause estimation engine (38) for referencing the knowledge base (42) for the input item that has a large effect on the abnormality as indicated by the abnormality prediction engine (30), and determining a facility as a potential underlying cause of the abnormality, as well as the associated cause; and a display means (18) for displaying the degree of the abnormality and the potential underlying cause in a screen image.