Abstract: A failure knowledge structure system including: a failure knowledge database, execution procedures of actions and maintenance as maintenance information regarding a maintenance target instrument; an expression extraction unit that extracts failure expressions and action expressions from a maintenance document; a name identification unit that calculates the occurrence frequencies of execution procedures of maintenance executed before the failure expressions and the action expressions and after the failure expressions and the action expressions on the basis of extraction results of the expression unit and information regarding the execution procedures of maintenance stored in the failure knowledge database, and that further calculates distances between distributions of the failure expressions and distances between distributions of the action expressions; an input/output unit that draws the processing results of the name identification unit as name identification candidates, and that makes it possible to execute

Abstract: A system displays a fault tree of a generated event on the basis of input information including diagnosis result information representing results of diagnosis of the cause of the generated event. The input information includes information representing causal relationships between a plurality of elements, including the generated event, failure causes that may be a cause of the event, and check items associated with the failure causes. The diagnosis result information includes an occurrence probability of each failure cause.

Abstract: There is provided a maintenance recommendation system that creates an estimation model of failure modes of a new model of a device only from an occurrence probability of a failure mode. Based on an estimation model for an old model, the occurrence probability of a failure mode where a component is changed from the old model is updated only on a spot of a component change, and this creates an estimation model of failure modes intended for a new model newly commercially available. Thus, the attachment of the inspection result and the failure mode of a faulty facility is learned, an estimation model of failure modes is created to support facility maintenance services for a new model newly commercially available having a small amount of data of inspection results in failure daily reports for difficulty in learning.

Abstract: There is provided a design support system including a designer terminal, a maintenance personnel terminal, and a design support device, in which the design support device includes a failure causal model database, a failure causal model updating unit that updates the failure causal model based on an assumed cause of a failure of the input target equipment, a maintenance support unit that estimates a type of a failure having a high occurrence probability and the cause thereof based on a symptom of the input target equipment and the failure causal model, and outputs the estimated result to the maintenance personnel terminal, a maintenance record database that stores authenticity information input from the maintenance personnel terminal for the estimated type of the failure and the cause, and a failure cause analysis unit that updates the failure causal model based on the authenticity information stored in the maintenance record database, estimates a failure cause of the target equipment based on the updated fail

Abstract: A time series data processing device for processing time series data that is a sequence of data received from a system that is a processing target over time includes a time series data search processing unit that receives, for details of the time series data and occurrence time information, a time series data search condition including events of a plurality of the time series data and an interval condition that is a condition of time intervals of the events occurring, and changes the interval condition using an allowable time lag that is allowable time of a set time lag in a transmission source of the time series data to thereby reflect the set time lag in the time series data search condition; and a data monitoring unit that monitors the time series data received from the system that is the processing target, using the time series data search condition changed by the time series data search processing unit.