Patent ID: 8448025

Claim:
A fault analysis apparatus, comprising: system information reception means for sequentially receiving system information including a plurality of index values indicative of abnormality levels of a monitoring target device and identification information for the system information, from the monitoring target device configured to sequentially output the system information together with the identification information for the system information; type determination means for comparing each piece of the system information received by the system information reception means with a predetermined determination criterion to determine the piece of the system information to be of a particular type based on a result of the comparison; a determination result output section configured to output the identification information for each piece of the system information and the type determined for each piece of the system information, in association with each other; fault case registration means for accepting input information indicative of a true type of the identification information for the each piece of the system information, the true type identifying a type of a fault of a detected case; case storage means for storing the identification information for each piece of the system information in association with the true type; and pattern learning means for updating the determination criterion based on each piece of the system information received by the system information reception means and the true type stored in association with the identification information for each piece of the system information, wherein the system information reception means comprises temporal status estimated value calculation means for calculating current predicted values for index values included in the system information received by the system information reception means, based on the index values, and wherein the type determination means includes, in each piece of the system information, the index values including the predicted values calculated by the temporal status estimated value calculating means, and compares resultant system information with the determination criterion to determine each piece of the system information to be of a particular type.