Method for Improving Process/Equipment Fault Diagnosis
摘要:
Systems and approaches for error detection detect discrepancies in industrial equipment by comparing a particular asset to similar industrial assets running in parallel to the particular asset. An error detection unit detects a difference between an estimated and actual output of the asset. Based on the magnitude of the difference, the error detection unit determines whether an input value of the particular asset is similar to input values of the plurality of industrial assets and whether an output value of the particular asset is similar to output values of the plurality of industrial assets. If the input value of the particular asset is similar to the input values of the plurality of industrial assets and the output value of the particular asset is not similar to the output values of the plurality of industrial assets, then the error detection system sets an alarm. However, if the input value of the particular asset is not similar to the input values of the plurality of industrial assets, the error detection system considers whether to adapt the process model for the particular asset to account for a new process state or condition not considered when creating the process model for the particular asset.
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