Failure cause identifying device and method for identifying failure cause

Abstract

A failure cause identifying device has a device parameter acquisition part configured to acquire a device parameter indicative of an operating state of a manufacturing device, an alarm generator configured to generate a device alarm with respect to the device parameter in accordance with a predetermined rule during the operation of the manufacturing device, a trouble acquisition part configured to acquire information relating to at least a part of troubles occurred in the manufacturing device, a significance detector configured to detect significance of a relationship between the device alarm and the trouble, and a significance judging part configured to judge whether or not a relationship between the device parameter and the trouble is significant based on the significance detected by the significance detector.

Dependencies are inferred from the claim text.