| 摘要 |
PROBLEM TO BE SOLVED: To provide a fault diagnosis support system and the like presenting information facilitating the identification of the real cause of an unknown fault. ! SOLUTION: A fault diagnosis support device 2 receives normal-state data from an operation data acquisition device 4 and stores the normal-state data (step S1), and receives abnormal-state data from the operation data acquisition device 4 and stores the abnormal-state data (step S2). Then, the fault diagnosis support device 2 extracts, on the basis of the values of respective signals of the normal-state data and the values of respective signals of the abnormal-state data, dropped-off combination pattern as a combination of the signals of the abnormal-state data dropped off from the normal-state data (step S3). Further, the fault diagnosis support device 2 estimates, on the basis of the dropped-off combination pattern to be extracted, a structure of the collapse of a relationship among the signals for all the signals appearing in the dr |
