Algorithm Research & Explore
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1396-1399,1408

PCA based on probability density for fault detection of multimodal processes

Guo Jinyu
Liu Yuchao
Li Yuan
College of Information Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China

Abstract

In order to improve the ability of fault detection and classification, this paper proposed PCA based on probability density for fault detection of multimodal processes. It established PCA model for training data of each mode, and calculated the control limits and matching coefficients of each model. It calculated the unified control limit of each mode according to the matching coefficients. For a new data, it determined its mode by the probability density. It projected the new data to PCA model of the corresponding mode and calculated the unified statistics. It performed fault detection of multimodal processes by comparing the statistics with control limit. This paper applied the method to a numerical example and the semiconductor process. Simulation results show that the proposed algorithm has high accuracy in classification and fault detection of multimodal processes.

Foundation Support

国家自然科学基金重大项目(61490701)
国家自然科学基金资助项目(61174119)
辽宁省教育厅重点实验室项目(LZ2015059)
辽宁省自然科学基金资助项目(201602584)
辽宁省教育厅项目(L2016007,L2015432)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2017.12.0838
Publish at: Application Research of Computers Printed Article, Vol. 36, 2019 No. 5
Section: Algorithm Research & Explore
Pages: 1396-1399,1408
Serial Number: 1001-3695(2019)05-024-1396-04

Publish History

[2019-05-05] Printed Article

Cite This Article

郭金玉, 刘玉超, 李元. 基于概率密度PCA的多模态过程故障检测 [J]. 计算机应用研究, 2019, 36 (5): 1396-1399,1408. (Guo Jinyu, Liu Yuchao, Li Yuan. PCA based on probability density for fault detection of multimodal processes [J]. Application Research of Computers, 2019, 36 (5): 1396-1399,1408. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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