用深度学习检测电池产线热失控,提升生产安全。
Deep Learning Methods for Detecting Thermal Runaway Events in Battery Production Lines
- 融合光学与热成像数据,训练三类视觉模型
- 残差网络在准确率与鲁棒性上表现最优
- 适合电池制造企业部署智能监控系统
电池生产中的热失控是重大安全隐患,可能导致火灾、爆炸及有毒气体释放。为提升安全水平,本文研究了深度学习在荷兰汽车制造商VDL Nedcar电池产线中检测热失控的可行性。通过外部加热和烟雾源模拟热失控事件,采集了正常状态与异常状态下的光学与热成像数据,并进行预处理与特征融合后输入三种主流计算机视觉模型:浅层卷积神经网络、残差网络(ResNet)和视觉变换器(Vision Transformer)。在两个性能指标下评估模型表现,并结合可解释性方法分析其特征提取能力。结果表明,深度学习方法在热失控检测中具备可行性,其中残差网络表现最佳。
原文摘要 · Abstract (English)
One of the key safety considerations of battery manufacturing is thermal runaway, the uncontrolled increase in temperature which can lead to fires, explosions, and emissions of toxic gasses. As such, development of automated systems capable of detecting such events is of considerable importance in both academic and industrial contexts. In this work, we investigate the use of deep learning for detecting thermal runaway in the battery production line of VDL Nedcar, a Dutch automobile manufacturer. Specifically, we collect data from the production line to represent both baseline (non thermal runaway) and thermal runaway conditions. Thermal runaway was simulated through the use of external heat and smoke sources. The data consisted of both optical and thermal images which were then preprocessed and fused before serving as input to our models. In this regard, we evaluated three deep-learning models widely used in computer vision including shallow convolutional neural networks, residual neural networks, and vision transformers on two performance metrics. Furthermore, we evaluated these models using explainability methods to gain insight into their ability to capture the relevant feature information from their inputs. The obtained results indicate that the use of deep learning is a viable approach to thermal runaway detection in battery production lines.
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