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Method and apparatus for detecting abnormal characteristic values capable of suppressing detection of normal characteristic values
Method and apparatus for detecting abnormal characteristic values capable of suppressing detection of normal characteristic values
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机译:检测异常特征值的方法和装置,其能够抑制对正常特征值的检测
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摘要
In a method for detecting abnormal characteristic values of at least three products sequentially manufactured in the same manufacturing line, it is determined whether or not a successively-alternate increase/decrease tendency has occurred in a plurality of sequentially-obtained characteristic values of the products. Also, it is determined whether or not at least one of the characteristic values is located within a control region narrower than an allowable region and outside a normal region narrower than the control region. Further, when the successively-alternate increase/decrease tendency has occurred and the at least one characteristic value is located within the control region outside the normal region, an alarm state is detected.
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