ABNORMAL MODULATION CAUSE DISPLAY DEVICE, ABNORMAL MODULATION CAUSE DISPLAY METHOD, AND ABNORMAL MODULATION CAUSE DISPLAY PROGRAM

摘要

The objective of the present invention is to improve the accuracy of identifying causes of abnormal modulation in a production facility, and to propose suitable measures to a user. This abnormal modulation cause display device is provided with: a process data acquiring unit for reading process data from a storage device which stores process data output continuously by a plurality of sensors provided in a production facility; an abnormality determining unit for calculating a degree of abnormality representing the extent of modulations in the process data read by the process data acquiring unit; a cause diagnosing unit for determining whether the degree of abnormality calculated by the abnormality determining unit satisfies a prescribed standard, in relation to the process data output by the plurality of sensors, using causal relationship information defining a combination of a cause and a modulation of the process data output by the plurality of sensors, manifested as an effect arising from said cause; and an output control unit for reading information indicating a measure to be taken, from a storage device which additionally stores information indicating measures to be taken with respect to causes, and causing an output device to output the information.