| 摘要 |
PROBLEM TO BE SOLVED: To surely aquisite information necessary for analysis by specifying an influence range from the contents of a fault at the time of fault occurrence, judging the effectiveness of fault analysis information by means of a fault occurrence timing in the influence range and recording only that the fault after the second one is the same fault. SOLUTION: A judging means 11 decides the effectiveness of fault analysis information in this time fault by retrieving the same fault within the kinds of the faults which occur immediately before, which are recorded by a fault recording means 14, and within history information which is recorded by an analysis information recording means 13. When effectiveness is judged, fault analysis information is acquisited in an analysis information acquisiting means 12. Moreover, an analysis information recording means 13 records the influence range of the fault, the kind of the fault and a job where the fault occurs concerning the fault so as to adopt it as history information. The fault recording means 14 records the kinds of the faults at every influence range concerning the whole faults which occur and adopts them as fault recording. |
