Abnormality diagnosis device, abnormality diagnosis method, and program

• Main Authors: MORITA KATSUAKI, OKA HIROTAKA, OGAWA SOTA, NAGAHARA KENICHI, ISHIGURO TATSUO, NIKAIDO SATOSHI, NOMURA MASUMI, MATSUKURA NORIYUKI, NISHIZAKI TOMOKI, IKEDA RYUJI
• Format: Patent
• Language: Chinese; English
• Published: 16.05.2023
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

An abnormality diagnosis device is provided with: an abnormality determination unit that determines the presence or absence of an abnormality on each of state quantities acquired from a device; and a cause estimation unit that estimates the cause of the abnormality of the device on the basis of the state quantity for which the abnormality determination unit determines that there is an abnormality, using a cause correspondence table in which the cause of the abnormality pattern of the device determined by the fault tree analysis and the state quantity for which the abnormality occurs when the cause has occurred are associated with each other, the cause estimation unit being configured to estimate the cause of the abnormality of the device on the basis of the state quantity for which the abnormality determination unit determines that there is an abnormality. 异常诊断装置具备：异常判定部，其对从设备取得的状态量分别判定有无异常；和要因推定部，其使用将通过故障树解析而确定的所述设备的异常模式的要因和所述要因产生了的情况下成为异常的所述状态量建立对应的要因对应表，根据由所述异常判定部判定为有异常的状态量来推定所述设备的异常的要因。