| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a system and method for supporting abnormality diagnosis of a plant facility, in which since abnormality diagnosis is supported by use of the autocorrelation value of a process quantity, at each occurrence of abnormality, it is not necessary to find out a process quantity having a strong correlation, or the processing load can be reduced, and in particular, the same kind of abnormality which occurs non-periodically repeatedly is diagnosed to support the estimation or the specifications of an abnormality cause by a user. <P>SOLUTION: The system for supporting abnormality diagnosis of the plant facility by collecting the process quantity from at least one piece of equipment, constituting the plant facility comprises a data storage part which stores, each time an abnormality occurs in the equipment, the process quantity at a predetermined past time from the occurrence of abnormality with time information; a correlation arithmetic part which computes the autocorrelation value of the process quantity stored in the data storage part; and a display part which displays the autocorrelation value. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
