METHOD FOR TREND ANALYSIS AND AUTOMATIC ADJUSTMENT OF ALARM PARAMETERS

摘要

The invention relates to a method for automatically adjusting alarm parameters for a machine. The method comprises the steps of obtaining the historical measurement data of the machine which are normally regularly recorded, comparing on the one hand the historical measurement data at each alarm trigger and on the other hand the measurement data of the machine. current at each alarm trigger with recorded faults, identify a relationship between alarm triggers and detected faults, where a relationship is identified if an alarm has been recorded a set time before fault detection, set limits defined allowable for all such relationships on the basis of eligible historical measurement data, count these relationships from the current measurement data, compare the number of said relationships counted with the allowable defined limits. If the compared number of relationships is within the allowable defined limits, then the adjustment is complete. Otherwise the adjustment is not completed, and the adjustment is made automatically until the defined allowable limits are reached.