| 摘要 |
PROBLEM TO BE SOLVED: To present an indication of occurrence of an abnormality in a plant.SOLUTION: Included are a measured value acquisition unit 112 that newly acquires a measured value from a plant, a categorization unit 113 that classifies already acquired measured values into categories while changing the ranges of the categories, an alarm level calculation unit 114 that calculates an alarm level at plural times according to whether a newly acquired measured value falls outside a category, the range of which is created by the categorization unit 113, and of what category the range is, a contribution ratio calculation unit 115 that calculates a contribution ratio, which is a value relevant to a distance between the newly acquired measured value and category, at the plural times at which the alarm level is calculated, and a display processing unit 116 that time-sequentially displays on a display unit the alarm levels and contribution ratios, which are calculated during a predetermined period, in association with each other.SELECTED DRAWING: Figure 1 |
