光谱学与光谱分析, 2016, 36 (9): 2901, 网络出版: 2016-12-26  

可拓神经网络模式识别对成品油的鉴别与测量

Study on Refined Oil Identification and Measurement Based on the Extension Neural Network Pattern Recognition
作者单位
1 燕山大学测试计量技术及仪器河北省重点实验室, 河北 秦皇岛 066004
2 河北省自动化研究所, 河北 石家庄 050081
3 华北理工大学电气工程学院, 河北 唐山 063009
摘要
燃油存在“消耗量大”、 “相对低质”、 “前端缺少清洁”、 “末端排放缺乏控制”四大问题, 我国的空气污染60%以上来自煤和油的燃烧, 雾霾问题很大程度上取决于能源问题。 快速准确地实现汽油、 柴油、 煤油等成品油的鉴别与测量, 对于实施空气污染监测及治理具有重要意义。 在精确地表征成品油种类信息的基础上, 为了提高网络模型的识别效率, 采用主成分分析方法将高维空间进行降维处理。 对最常用的三维荧光光谱基于激发-发射矩阵(excitation-emission matrix, EEM)数据进行主成分分析以提取更精细、 更深层的特征参量。 分类过程中应用交叉验证的方法避免发生“过拟合”现象。 设计鉴别和测量双重处理的神经网络, 将神经网络模式识别结果反馈到浓度网络的输入端, 与相对斜率、 综合本底参数、 相对荧光强度一起测量相应种类的浓度输出, 利用可拓神经网络模式识别技术实现成品油的鉴别与测量。 应用可拓神经网络方法实现成品油种类模式识别的平均识别率达到0.99, 浓度平均回收率为0.95。 模式识别平均耗时为2.5 s, 仅为PARAFAC模型分析方法的48.5%。 该方法显著提高了运算速度, 且应用效果理想。 需要指出的是, 在分析诸如成品油、 茶叶、 农药等成分复杂的混合物时, 应针对具体待测物制作相应的校正样本, 用以确保分析的准确性与精度。
Abstract
There are four major problems related to fuel consumption, “large consumption”, “low quality”, “lack of front-end clean” and “lack of end emission control”, which needs to address urgently for our country. More than 60 percent of the air pollution is due to the burning of coal and oil in our country, so the haze problem depends on how much we can deal with energy issues. We should achieve the identification and measurement of gasoline, diesel, kerosene and other refined oil products rapidly and accurately, which is important for the implementation of air pollution monitoring and controlling. in order to characterize the type information of the refined oil accurately and to improve the efficiency of the network model identification, it is effective to use principal component analysis method which could achieve the data dimension reductionwhile reducing the complexity of the problem. With principal component analysis of the most commonly used three-dimensional fluorescence spectra based on excitation-emission matrix (Excitation-Emission Matrix, EEM) data, we could obtain finer, deeper characteristic parameters. During the process of classification, it could avoid the “over-fitting” phenomenon because of the application of the cross-validation method, A neural network capable of both qualitative and quantitative analysis is designed. The neural network pattern recognition result becomes feedback to the input of the concentration network, together with the relative slope, the comprehensive background parameters, and the relative fluorescence intensity, we could achieve the measurement of the concentration of the corresponding types, then use the extension neural network pattern recognition technology to achieve identification and measurement of kerosene, diesel, gasoline and other refined oil products. The results of the study show that the average recognition rate reaches 0.99, the average recovery rate of concentration reaches 0.95, the average time of pattern recognition is 2.5 seconds and this time is 48.5% of the time used by PARAFAC model analysis method. The method significantly improves the operation speed with ideal application effect . It should be pointed out that, in order to ensure the accuracy and precision of the analysis, we should make corresponding calibration samples for specific analytes in terms of the analysis of complex mixtures such as refined oil, pesticides, tea, etc.

张立国, 陈至坤, 王丽, 曹丽芳, 严冰, 王玉田. 可拓神经网络模式识别对成品油的鉴别与测量[J]. 光谱学与光谱分析, 2016, 36(9): 2901. ZHANG Li-guo, CHEN Zhi-kun, WANG Li, CAO Li-fang, YAN Bing, WANG Yu-tian. Study on Refined Oil Identification and Measurement Based on the Extension Neural Network Pattern Recognition[J]. Spectroscopy and Spectral Analysis, 2016, 36(9): 2901.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!