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Performance assessment and improvement of control charts for statistical batch process monitoring
Author(s) -
Ramaker HenkJan,
Van Sprang Eric N. M.,
Westerhuis Johan A.,
Gurden Stephen P.,
Smilde Age K.,
Van Der Meulen Frank H.
Publication year - 2006
Publication title -
statistica neerlandica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 39
eISSN - 1467-9574
pISSN - 0039-0402
DOI - 10.1111/j.1467-9574.2006.00337.x
Subject(s) - control chart , statistical process control , process (computing) , batch processing , computer science , batch production , process control , process capability , monitoring and control , work in process , process engineering , reliability engineering , control engineering , engineering , operations management , programming language , operating system
This paper describes the concepts of statistical batch process monitoring and the associated problems. It starts with an introduction to process monitoring in general which is then extended to batch process monitoring. The performance of control charts for batch process monitoring is discussed by means of two performance indices: the overall type I error and the action signal time. Problems associated with the existing approach are discussed and highlighted. Improvements are suggested and checked with the performance indices. To evaluate the effect of the proposed improvements as well as to assess the performance of the existing approach, an industrial batch production process is used.