Research on soft sensing method based on continuous hidden Markov model in fermentation process

被引:0
|
作者
Liu, Guo-Hai [1 ]
Jiang, Xing-Ke [1 ]
Mei, Cong-Li [1 ]
机构
[1] School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
来源
Kongzhi yu Juece/Control and Decision | 2011年 / 26卷 / 11期
关键词
Hidden Markov models - Process control;
D O I
暂无
中图分类号
O21 [概率论与数理统计];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
A soft sensing modeling method based on continuous hidden Markov model(CHMM) is developed to deal with the problem that some biologic variables cannot be measured directly online in fermentation process. In order to reduce the computation quantity of modeling process, improved minimum classification error criteria is used to train the CHMMbased soft sensor. Meanwhile, a soft sensing credibility evaluation index is proposed to avoid blindness problem during the practical application of soft sensing result to monitoring in fermentation process. The testing result shows the effectiveness of the proposed method and the practical significance of the credibility evaluation index.
引用
收藏
页码:1753 / 1756
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