DEVICE ABNORMALITY DIAGNOSIS METHOD AND SYSTEM

摘要

Disclosed is a technique pertaining to a device abnormality diagnosis system which is able to easily create an abnormality diagnosis model with respect to an initial and a new example of a malfunction, and to add/update said model, and is able to use said model to properly and efficiently implement an abnormality analysis, a countermeasure instruction, and the like. With this abnormality diagnosis system, on the basis of obtained maintenance work data an abnormality diagnosis model creation processing unit creates, a causal relationship model which expresses a causal relationship between the types of the maintenance work and the alarms and operational events related thereto by means of a graphical network structure (S104). Then, that model is combined with an existing causal relationship model to update the abnormality diagnosis model (S106).