METHOD, SYSTEM, AND PROGRAM FOR MONITORING CONDITION OF PERIODIC MOVING BODY

摘要

PROBLEM TO BE SOLVED: To provide a condition monitoring method for detecting an abnormal condition with high sensitiveness based on a proper criterion and adequately determining a deterioration condition of a periodic moving body.

SOLUTION: For monitoring a condition of the periodic moving body, time-series data are applied to an ARMA (autoregressive moving average) model, and the degree of deviation between an estimation value and a normal value of a parameter is found as a distance between system parameters by a simple calculation method.

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