Synthetic double sampling np control chart for attributes
Synthetic double sampling np control chart for attributes
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DOI：
10.1016/j.cie.2014.06.016
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发表时间：
2014-09
期刊：
影响因子：
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通讯作者：
Z. L. Chong;M. Khoo;P. Castagliola
中科院分区：
文献类型：
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作者：
Z. L. Chong;M. Khoo;P. Castagliola
基于不合格品数量的产品质量可以使用np图进行控制。本文提出了一种合成双抽样（DS）np图，它包括两个子图，即DS np和一致游程（CRL）子图。对于零状态情况，合成DS np图优于其标准对应物，即合成np和基本DS np图，以及其他np类型图，如标准np、组合合成和np（Syn-np）、可变样本大小（VSS）np、指数加权移动平均（EWMA）np和累积和（EWMA）np图，用于检测不符合项sp的分数的增加，对于大多数移位大小。与上述其他图表相比，合成DS np图表在稳态情况下也表现得相当好。因此，在竞争图表中，合成DS np图表脱颖而出，成为最好的图表之一。
The quality of a product, based on the number of non-conforming items can be controlled using the np chart. This paper proposes a synthetic double sampling (DS) np chart which comprises two sub-charts, i.e. the DS np and conforming run length (CRL) sub-charts. For the zero-state case, the synthetic DS np chart surpasses its standard counterpart, i.e. the synthetic np and the basic DS np chart, and other np type charts like the standard np, combined synthetic and np (Syn-np), variable sample size (VSS) np, exponentially weighted moving average (EWMA) np and cumulative sum (CUSUM) np charts, for detecting increases in the fraction of non-conforming itemsp, for most shift sizes. The synthetic DS np chart also performs reasonably well in the steady-state case in comparison with other charts mentioned above. Thus, among the competing charts, the synthetic DS np chart stands out as one of the best charts.