Anomaly diagnosis system and anomaly diagnosis method
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United States of America Patent
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Oct 11, 2016
Grant Date -
Jul 14, 2016
app pub date -
Dec 29, 2015
filing date -
Jan 9, 2015
priority date (Note) -
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Abstract
The anomaly diagnosis system includes the state measure calculator acquiring sensor data from sensors in a machine facility as time series data; an approximation formula calculator calculating a state measure being an index indicating a state of the machine facility, such as anomaly and a performance by a statistical method in which the time series data is used as learned data; and a state measure estimating unit estimating the state measures until future time using the approximation formula. Whenever the latest time series data is acquired, the reference period in which the time series data corresponding to the state measure referred to calculate the approximation formula by the reference period setting unit, is successively extended by addition of time when the latest time series data is acquired. The approximation formula calculator calculates the approximation formula using the state measure of the time series data acquired in the reference period.
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