FAULT DIAGNOSIS FOR DIAGNOSIS TARGET SYSTEM

• Main Authors: KUSAKABE, Takumi, MOTEGI, Yusuke, KAWANO, Yukihiro, NAGASHIMA, Hitomi
• Format: Patent
• Language: English
• Published: 14.10.2021
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COUNTING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

A fault diagnosis device includes circuitry configured to acquire diagnosis target data including parameter values from the diagnosis target system, to store extraction source data including a plurality of data sets that includes the parameter values of the diagnosis target data representing a normal state of the diagnosis target system, to determine an extraction condition based on the diagnosis target data and on condition setting information, to extract a group of data sets satisfying the extraction condition among the plurality of data sets, to select, as learning data, a number of first data sets of the group, in which the data sets of the group are sorted according to a sorting criterion, to generate learning information from the learning data, and to determine whether the diagnosis target data associated with the diagnosis target system is faulty based on the learning information.