摘要
为了解决卷烟制叶丝段不同生产线同一牌号产品感官质量存在差异等问题,提出了一种基于改进Fisher判别分析和参数贡献度评价的工艺特征参数提取方法。采用改进Fisher判别分析提取制叶丝段优秀生产线和问题生产线同一牌号工艺参数数据的最大分离方向,进而沿最大分离方向计算不同生产线的相似度,并根据优秀生产线的相似度计算控制限。如果问题生产线相似度超出控制限的占比大于给定置信值,计算问题生产线各工艺参数的差异贡献度,将本次迭代中贡献度最大的工艺参数作为特征参数,通过迭代提取获得导致感官质量差异的所有工艺特征参数。基于某特定牌号对不同生产线的工艺参数数据进行实验验证,结果表明:该方法提取的工艺特征参数更加科学和完备,通过量化问题生产线工艺参数的差异贡献度,有效提高了不同生产线多参数差异分析的可靠性。该方法可为制叶丝段不同生产线相同工艺路径下的工艺参数优化提供技术支持。
In order to minimize the sensory quality differences of cigarettes made from cut tobacco processed by different production lines, a method for extracting the characteristic technical parameters in cut strip processing was proposed based on revised Fisher discriminant analysis and evaluation of parameter contribution. The maximum discrete direction of technical parameter data between a typical production line and a questioned production line in cut strip processing section was extracted via revised Fisher discriminant analysis, then the similarity of each line was calculated along the maximum discrete direction, and the control limit was determined on the basis of the similarity of the typical line. If the similarity of the questioned line exceeding the determined control limit with a proportion larger than the given confidence value, then the contribution of variation of each technical parameter of the questioned production line should be calculated, the technical parameter with the largest contribution in this iteration was taken as one of the characteristic parameters. The results of validation showed that the characteristic technical parameters extracted by the proposed method were more scientific and comprehensive, the reliability of multi-parameter variation analysis for different production lines was effectively improved via quantifying the contribution of technical parameter variation of questioned production line. This method provides a theoretical support for the adjustment of the cut strip processing technology in different production lines of the same processing route.
作者
王伟
潘凡达
黎明星
钱永安
樊虎
赵春晖
WANG Wei;PAN Fanda;LI Mingxing;QIAN Yongan;FAN Hu;ZHAO Chunhui(China Tobacco Zhejiang Industrial Co.,Ltd.,Hangzhou 310024,China;State Key Laboratory of Industrial Control Technology,College of Control Science and Engineering,Zhejiang University,Hangzhou 310027,China)
出处
《烟草科技》
EI
CAS
CSCD
北大核心
2018年第8期92-99,共8页
Tobacco Science & Technology
基金
国家自然科学基金资助项目"批次过程监测与故障诊断的基础理论研究"(61422306)和"间歇过程高效运行的建模控制方法及应用"(61433005)
浙江省博士后科研择优资助项目"基于多元统计分析的卷烟工厂设备在线监测和故障诊断技术研究"(BSH1502045)
关键词
制叶丝段
生产线
感官质量
差异
工艺特征参数
改进Fisher判别分析
迭代提取
Cut strip processing section
Production line
Sensory quality
Variation
Characteristic technical parameter
Revised Fisher discriminant analysis
Iterative extraction
