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Plant data evaluation system and method, condenser vacuum monitoring method, data mining method, and program
Plant data evaluation system and method, condenser vacuum monitoring method, data mining method, and program
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机译:工厂数据评估系统和方法,冷凝器真空监测方法,数据挖掘方法和程序
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摘要
PPROBLEM TO BE SOLVED: To efficiently extract and process data correlated with plant data that is a monitoring target to find out a sign of minute abnormality hiding in a normal range, particularly when a plurality of operation modes is provided for a plant. PSOLUTION: A plant data estimation system has: a data registration means 22 storing the data on a plant; a multimode determination means 70 determining whether or not a plurality of operation modes of the plant is present on the basis of the data; an evaluation standard configuration means 23 temporarily calculating a correlation approximate expression with the other data item in each a monitoring target data item, eliminating defective data on the basis of deviation between a value by the correlation approximate expression and actual data, and conclusively calculating at least the correlation approximate expression and an evaluation standard including a standard deviation, by use of the data after the elimination; a data evaluation means 24 evaluating the data on the plant by use of the evaluation standard actually calculated by the evaluation standard configuration means 23; and a state display means 26 displaying an evaluation result by the data evaluation means. PCOPYRIGHT: (C)2006,JPO&NCIPI
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