摘要
目前, 带有测量误差的一元控制图显著降低
了测量误差对于控制图性能的影响,并在监控实际生产过程时发挥着重要
作用. 然而由于多元控制图的复杂性, 尤其是在协方差矩阵发生漂移情况下,
对带有测量误差的多元控制图的研究还有所不足. 因此文章结合多元测量误差
模型, 构建了对监控过程协方差矩阵漂移具有显著优越性的ME-KQE、KME-KQE
控制图, 并分析了测量误差对于检测效率的影响. 最后,
文章通过实例展示了
其在实际应用中对存在测量误差的数据有较好的监测效果.
Abstract
At present, the univariate control chart with
measurement error has significantly reduced the impact of
measurement error on the performance of the control chart, and
plays an important role
in the actual production process monitoring. However, due to the complexity
of multivariate control charts, especially when the covariance matrix shifts,
there is still insufficient research on multivariate control charts with
measurement errors. Therefore, this paper combines the multivariate
measurement error model to construct ME-KQE and KME-KQE control charts
that have significant advantages over the covariance matrix drift in
the monitoring process, and analyzes the effect of measurement error
on detection efficiency. Finally, this article shows that it has a good
monitoring effect on the data with measurement errors in practical
applications.
关键词
测量误差, /
统计控制过程, /
协方差矩阵, /
KQE控制图.
{{custom_keyword}} /
赵伟, 王钟梅, 吴纯杰.
结合测量误差的检测多元协方差矩阵的EWMA控制图. 系统科学与数学, 2021, 41(7): 2018-2034. https://doi.org/10.12341/jssms20239
ZHAO Wei , WANG Zhongmei , WU Chunjie.
An EWMA Control Chart Combined with Measurement Error
for Monitoring Covariance Matrix. Journal of Systems Science and Mathematical Sciences, 2021, 41(7): 2018-2034 https://doi.org/10.12341/jssms20239
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}