Anomaly detection and diagnosis method, anomaly detection and diagnosis systems, and fault detection and diagnosis program

摘要

PROBLEM TO BE SOLVED: To provide an abnormality detection and diagnosis method and system that can detect an abnormality at an early stage and with high sensitivity in a facility such as a plant.SOLUTION: Maintenance history information composed of past events such as work history and part replacement information is associated with each other on a keyword basis. An abnormality is detected based on abnormality detection targeting an output signal of a multidimensional sensor installed in a facility, and the detected abnormality is connected to associated maintenance history information, whereby a diagnosis and measures necessary for the occurred abnormality are determined.