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arXiv 2104.05049cs.LGcs.AI
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使用端到端模型学习表示,以改进剩余使用寿命预测

Learning representations with end-to-end models for improved remaining useful life prognostics

Université de Lorraine(洛林大学);CNRS(法国国家科学研究中心);LORIA(洛林计算机科学及其应用实验室);CRAN(自动化研究中心);INRIA(法国国家信息与自动化研究所)

Alaaeddine Chaoub, Alexandre Voisin, Christophe Cerisara, Benoît Iung

摘要:

设备的剩余使用寿命(RUL)定义为当前时间与其故障之间的持续时间。对剩余使用寿命作出准确可靠的预测,可为决策者提供宝贵的信息,以便采取适当的维护战略,最大限度地提高设备利用率,避免代价高昂的故障。在这项工作中,我们提出了一个基于多层感知器和长短期记忆层(LSTM)的端到端深度学习模型来预测RUL。在所有数据标准化之后,输入直接馈送到MLP层进行特征学习,然后馈送到LSTM层以捕获时间依赖性,最后馈送到其他MLP层进行RUL预测。提出的架构进行了测试,美国宇航局商业模块化航空推进系统仿真(C-MAPSS)数据集。尽管它的简单性,相对于其他最近提出的模型,该模型开发优于他们的竞争得分显着下降,并在均方根误差之间的预测和黄金价值的RUL得分。在本文中,我们将讨论所提出的端到端模型如何能够实现如此好的结果,并将其与其他深度学习和最先进的方法进行比较。

英文摘要:

The remaining Useful Life (RUL) of equipment is defined as the duration between the current time and its failure. An accurate and reliable prognostic of the remaining useful life provides decision-makers with valuable information to adopt an appropriate maintenance strategy to maximize equipment utilization and avoid costly breakdowns. In this work, we propose an end-to-end deep learning model based on multi-layer perceptron and long short-term memory layers (LSTM) to predict the RUL. After normalization of all data, inputs are fed directly to an MLP layers for feature learning, then to an LSTM layer to capture temporal dependencies, and finally to other MLP layers for RUL prognostic. The proposed architecture is tested on the NASA commercial modular aero-propulsion system simulation (C-MAPSS) dataset. Despite its simplicity with respect to other recently proposed models, the model developed outperforms them with a significant decrease in the competition score and in the root mean square error score between the predicted and the gold value of the RUL. In this paper, we will discuss how the proposed end-to-end model is able to achieve such good results and compare it to other deep learning and state-of-the-art methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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