Process monitoring/diagnosis device and process monitoring/diagnosis program

摘要

A process monitoring/diagnosis device equipped with a classification unit a model formulation unit having an identification unit and a fault detection data definition unit and a monitoring/diagnosis unit having an extraction unit and a fault level assessment unit. The classification unit classifies process data or time series data on the basis of attribute information. The identification unit creates regular pattern data and irregular pattern data from the classified time series data. The fault detection data definition unit creates fault diagnosis models on the basis of the irregular pattern data. The extraction unit extracts degrees of deviation with respect to the regular pattern data of the classified process data. The fault level assessment unit applies the degrees of deviation to the fault diagnosis models calculates fault detection data and a threshold value and assesses a fault level on the basis of whether the fault detection data exceeds the threshold value.