A modified CUSUM control chart for monitoring industrial processes

被引:32
作者
Faisal, Muhammad [1 ]
Zafar, Raja Fawad [2 ]
Abbas, Nasir [3 ]
Riaz, Muhammad [3 ]
Mahmood, Tahir [4 ]
机构
[1] FG Inter Coll Mangla Cantt, Jhelum, Punjab, Pakistan
[2] Sukkur Inst Business Adm Univ, Dept Math & Social Sci, Sukkur, Pakistan
[3] King Fahad Univ Petr & Minerals, Dept Math & Stat, Dhahran 31261, Saudi Arabia
[4] City Univ Hong Kong, Dept Syst Engn & Engn Management, Kowloon, Hong Kong, Peoples R China
关键词
average run length; control chart; cumulative sum; link relative; statistical process control; CONTROL SCHEMES; DESIGN;
D O I
10.1002/qre.2307
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Control charts are the most popular tool of statistical process control for monitoring variety of processes. The detection ability of these control charts can be improved by introducing various transformations. In this study, we have enhanced the performance of CUSUM charts by introducing a link relative variable transformation technique. Link relative variable converts the original process variable in a form which is relative to its mean. So, the link relative represents the relative positioning of the observations. Average run length () is used to compare our technique with the previous studies. The comparison shows the overall good detection performance of our scheme for a span of shifts in the mean. A real-world example from the electrical engineering process is also included to demonstrate the application of proposed control chart.
引用
收藏
页码:1045 / 1058
页数:14
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