GRUDMU-DSCNN: An edge computing method for fault diagnosis with missing data

IF 3.4 2区 计算机科学 Q2 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE
Ziyang Yu, Yanzhi Wang, Xiaofeng Zong, Jinhong Wu, Qi Zhou
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引用次数: 0

Abstract

Traditional deep learning methods for rolling bearing fault diagnosis require a lot of computational time and resources. At the same time, the accuracy of fault diagnosis is affected by missing data collected due to the instability of sensors or data acquisition systems. In this paper, we propose a fault diagnosis method based on Gated Recurrent Unit with Decays and Maskless Update—Depthwise Separable Convolution Neural Network (GRUDMU-DSCNN). First, we use the trainable attenuation mechanism in GRUDMU for effective imputation of missingness and change the position of mask vectors to deal with missing data and solve the problem of missing data affecting the accuracy of fault diagnosis. In addition, we combine GRUDMU with DSCNN and deploy the model to edge devices. This improves the effectiveness of real-time fault diagnosis in edge computing scenarios. Furthermore, to verify whether the proposed method is effective in improving the accuracy of fault diagnosis in two missing patterns, namely Interval Missing and Missing Completely At Random (MCAR), we used a customized experimental equipment dataset and open experiments. The NVIDIA Jetson Xavier NX suite served as the edge computing platform to verify the effectiveness and superiority of the proposed model. The results indicate an average improvement in classification accuracy of 8.07% and 9.65% on both datasets when compared to existing methods.

Abstract Image

一种缺失数据故障诊断的边缘计算方法GRUDMU-DSCNN
传统的滚动轴承故障诊断深度学习方法需要大量的计算时间和资源。同时,由于传感器或数据采集系统的不稳定,导致采集到的数据缺失,影响故障诊断的准确性。本文提出了一种基于带衰减的门控循环单元和无掩模更新的深度可分离卷积神经网络(GRUDMU-DSCNN)的故障诊断方法。首先,我们利用GRUDMU中的可训练衰减机制对缺失进行有效的插值,并改变掩模向量的位置来处理缺失数据,解决缺失数据影响故障诊断精度的问题。此外,我们将GRUDMU与DSCNN相结合,并将模型部署到边缘设备上。这提高了边缘计算场景下实时故障诊断的有效性。此外,为了验证该方法在区间缺失和完全随机缺失(MCAR)两种缺失模式下是否能有效提高故障诊断的准确性,我们使用了定制的实验设备数据集和开放实验。NVIDIA Jetson Xavier NX套件作为边缘计算平台,验证了所提出模型的有效性和优越性。结果表明,与现有方法相比,在两个数据集上的分类准确率平均提高了8.07%和9.65%。
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来源期刊
Applied Intelligence
Applied Intelligence 工程技术-计算机:人工智能
CiteScore
6.60
自引率
20.80%
发文量
1361
审稿时长
5.9 months
期刊介绍: With a focus on research in artificial intelligence and neural networks, this journal addresses issues involving solutions of real-life manufacturing, defense, management, government and industrial problems which are too complex to be solved through conventional approaches and require the simulation of intelligent thought processes, heuristics, applications of knowledge, and distributed and parallel processing. The integration of these multiple approaches in solving complex problems is of particular importance. The journal presents new and original research and technological developments, addressing real and complex issues applicable to difficult problems. It provides a medium for exchanging scientific research and technological achievements accomplished by the international community.
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