A Modular Edge-/Cloud-Solution for Automated Error Detection of Industrial Hairpin Weldings using Convolutional Neural Networks

Johannes Vater, Pascal Schlaak, Alois Knoll

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations

Abstract

The traction battery and the electric motor are the most important components of the electrified powertrain. To increase the energy efficiency of the electric motor, wound copper wires are being replaced by coated rectangular copper wires, so-called hairpins. Hence, to connect the hairpins conductively, they must be welded together. However, such new production processes are unknown compared with classic motor production. Therefore, this research aims to integrate Industry 4.0 techniques, such as cloud and edge computing, and advanced data analysis in the production process to better understand and optimize the manufacturing processes. Welding defects are classified with the help of a convolutional neural network (CNN) (predictive analysis) and, depending on the defect, a recommended course of action for reworking (prescriptive analysis) is given. However, the application of such complex algorithms as neural networks to large amounts of data requires huge computing resources. Therefore, a modular combination of an edge and cloud architecture is proposed in this paper. Furthermore, a pure cloud solution is compared with the edge solution.

Original languageEnglish
Title of host publicationProceedings - 2020 IEEE 44th Annual Computers, Software, and Applications Conference, COMPSAC 2020
EditorsW. K. Chan, Bill Claycomb, Hiroki Takakura, Ji-Jiang Yang, Yuuichi Teranishi, Dave Towey, Sergio Segura, Hossain Shahriar, Sorel Reisman, Sheikh Iqbal Ahamed
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages505-510
Number of pages6
ISBN (Electronic)9781728173030
DOIs
StatePublished - Jul 2020
Event44th IEEE Annual Computers, Software, and Applications Conference, COMPSAC 2020 - Virtual, Madrid, Spain
Duration: 13 Jul 202017 Jul 2020

Publication series

NameProceedings - 2020 IEEE 44th Annual Computers, Software, and Applications Conference, COMPSAC 2020

Conference

Conference44th IEEE Annual Computers, Software, and Applications Conference, COMPSAC 2020
Country/TerritorySpain
CityVirtual, Madrid
Period13/07/2017/07/20

Keywords

  • cloud computing
  • convolutional neural network
  • edge computing
  • electric motor
  • hairpin
  • machine learning
  • predictive analytics
  • prescriptive analytics

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