Article(id=1204385692492215144, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1204385692009870183, articleNumber=null, orderNo=null, doi=10.19620/j.cnki.1000-3703.20220196, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=1649692800000, revisedDateStr=2022-04-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1765077525493, onlineDateStr=2025-12-07, pubDate=1684857600000, pubDateStr=2023-05-24, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1765077525493, onlineIssueDateStr=2025-12-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1765077525493, creator=13701087609, updateTime=1765077525493, updator=13701087609, issue=Issue{id=1204385692009870183, tenantId=1146029695717560320, journalId=1189621681917173762, year='2023', volume='', issue='5', pageStart='1', pageEnd='62', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1765077525378, creator=13701087609, updateTime=1765079144073, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1204392481388470847, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1204385692009870183, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1204392481388470848, tenantId=1146029695717560320, journalId=1189621681917173762, issueId=1204385692009870183, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1, endPage=7, ext={EN=ArticleExt(id=1204385692706124650, articleId=1204385692492215144, tenantId=1146029695717560320, journalId=1189621681917173762, language=EN, title=Application of Data Expansion Method and Parallel Network in Abnormal Noise Recognition for Passenger Vehicles, columnId=null, journalTitle=Automobile Technology, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To address the problems of small dataset and low efficiency of artificial diagnosis method in the research process of passenger vehicle abnormal noise recognition, this paper proposed an efficient intelligent recognition technique, which applied data expansion method with high recognition accuracy and adopted the parallel working mechanism of Convolutional Neural Network (CNN) and Transformer encoder stack to obtain the classification model. It is found that the data expansion method can effectively improve the classification performance when the extracted Mel Frequency Cepstral Coefficients (MFCCs) features of the augmented data are used as the input to the parallel network, and the proposed model can achieve classification accuracy up to 98.31% on the testing dataset.
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针对乘用车车内异响识别研究过程中数据集少且人工诊断法效率低的问题,提出了一种具有高识别准确率的数据扩充方法,并采取卷积神经网络与Transformer编码器栈并行的工作机制获得分类模型。结果表明,当将提取的扩充数据的梅尔倒谱系数特征用作并行网络的输入时,所提出的数据扩充方法可有效提高分类性能,且拟议模型在测试集上可以实现高达98.31%的分类精度。
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2015-04-10)[2021-06-15]. https://arxiv.org/abs/1409.1556., articleTitle=Very Deep Convolutional Networks for Large-Scale Image Recognition, refAbstract=null)], funds=[Fund(id=1204452622569812702, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204385692492215144, awardId=21233405, language=CN, fundingSource=* 中国汽车技术研究中心有限公司指南项目(21233405), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1204452613992461138, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204385692492215144, xref=1, ext=[AuthorCompanyExt(id=1204452614013432662, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204385692492215144, companyId=1204452613992461138, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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| 异响类型 | 样本量/个 | 总时长/s | 时间块/个 | 扩充时间块/个 |
| 齿轮啸叫 | 49 | 535 | 245 | 1 960 |
减速器 敲击 | 21 | 481 | 231 | 1 848 |
| 齿轮冲击 | 36 | 534 | 252 | 2 016 |
| 阀门系统 | 43 | 555 | 258 | 2 064 |
| 手扶箱 | 58 | 635 | 290 | 2 320 |
| 手套箱 | 61 | 598 | 281 | 2 248 |
| 座椅 | 61 | 671 | 305 | 2 440 |
| 总计 | 329 | 4 009 | 1 862 | 14 896 |
), ArticleFig(id=1204452621756117644, tenantId=1146029695717560320, journalId=1189621681917173762, articleId=1204385692492215144, language=CN, label=表1, caption=
数据信息
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| 异响类型 | 样本量/个 | 总时长/s | 时间块/个 | 扩充时间块/个 |
| 齿轮啸叫 | 49 | 535 | 245 | 1 960 |
减速器 敲击 | 21 | 481 | 231 | 1 848 |
| 齿轮冲击 | 36 | 534 | 252 | 2 016 |
| 阀门系统 | 43 | 555 | 258 | 2 064 |
| 手扶箱 | 58 | 635 | 290 | 2 320 |
| 手套箱 | 61 | 598 | 281 | 2 248 |
| 座椅 | 61 | 671 | 305 | 2 440 |
| 总计 | 329 | 4 009 | 1 862 | 14 896 |
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| 特征类型 | 函数关键参数细节 | 特征形状 |
| Logfbank | logfbank(sr=48k,winlen=0.01ms,winstep=0.005,nfilt=40,nfft=1 024, preemph=0.97,window=hamming) | 40×282 |
| MFCCs | librosa.feature.mfcc(sr=48k,n_mfcc=40,n_fft=1 024,winlen=512,hop_length=256,window=’hamming’, n_mel=128) | 40×282 |
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特征提取细节
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| 特征类型 | 函数关键参数细节 | 特征形状 |
| Logfbank | logfbank(sr=48k,winlen=0.01ms,winstep=0.005,nfilt=40,nfft=1 024, preemph=0.97,window=hamming) | 40×282 |
| MFCCs | librosa.feature.mfcc(sr=48k,n_mfcc=40,n_fft=1 024,winlen=512,hop_length=256,window=’hamming’, n_mel=128) | 40×282 |
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| 线路 | 架构细节 |
| CNN1 | Conv2D(16,3,3,1)-BN-ReLU-MaxPool(16,2,2,2)-Dropout(0.4)-Conv2D(32,3,3,1)-BN-ReLU-MaxPool(32,4,4,4)-Dropout(0.4)- Conv2D(64,3,3,1)-BN-ReLU-MaxPool(64,4,4,4)-Dropout(0.4) |
| CNN2 | Conv2D(16,1,3,1)-BN-ReLU-MaxPool(16,2,2,2)-Dropout(0.4)-Conv2D(32,3,1,1)-BN-ReLU-MaxPool(32,4,4,4)-Dropout(0.4)- Conv2D(64,1,3,1)-BN-ReLU-MaxPool(64,4,4,4)-Dropout(0.4) |
| Transformer | MaxPool(1×4,1×4)-Embedding-5×(MHA(5)-Dropout(0.4)-LN-Linear-Dropout(0.4)-Linear-Dropout(0.4)-LN) |
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并行架构细节
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| 线路 | 架构细节 |
| CNN1 | Conv2D(16,3,3,1)-BN-ReLU-MaxPool(16,2,2,2)-Dropout(0.4)-Conv2D(32,3,3,1)-BN-ReLU-MaxPool(32,4,4,4)-Dropout(0.4)- Conv2D(64,3,3,1)-BN-ReLU-MaxPool(64,4,4,4)-Dropout(0.4) |
| CNN2 | Conv2D(16,1,3,1)-BN-ReLU-MaxPool(16,2,2,2)-Dropout(0.4)-Conv2D(32,3,1,1)-BN-ReLU-MaxPool(32,4,4,4)-Dropout(0.4)- Conv2D(64,1,3,1)-BN-ReLU-MaxPool(64,4,4,4)-Dropout(0.4) |
| Transformer | MaxPool(1×4,1×4)-Embedding-5×(MHA(5)-Dropout(0.4)-LN-Linear-Dropout(0.4)-Linear-Dropout(0.4)-LN) |
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