arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.13380eess.SYcs.SY
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基于飞行试验数据的传感器故障检测的物理信息机器学习

Physics-informed machine learning for sensor fault detection with flight test data

Brian M. de Silva, Jared Callaham, Jonathan Jonker, Nicholas Goebel, Jennifer Klemisch, Darren McDonald, Nathan Hicks, J. Nathan Kutz, Steven L. Brunton, Aleksandr Y. Aravkin

摘要:

我们开发数据驱动的算法,以完全自动化传感器故障检测系统由底层物理。所提出的机器学习方法使用典型行为的时间序列通过线性时不变系统来近似感兴趣的测量的演变。给定来自相关传感器的附加数据,卡尔曼观测器用于保持感兴趣的测量的单独的实时估计。测量值和估计值之间的持续偏差用于检测异常行为。通过整合其他传感器测量值来通知的决策树用于确定识别传感器故障所需的偏差量。我们验证的方法,将其应用到三个测试系统表现出各种类型的传感器故障:商业飞行试验数据,动态失速的非定常空气动力学模型,和纵向飞行动力学模型被迫大气湍流。在后两种情况下,我们测试几个原型故障模式的故障检测。将学习的动态模型与自动决策树相结合,可以准确地检测每种情况下的传感器故障。

英文摘要:

We develop data-driven algorithms to fully automate sensor fault detection in systems governed by underlying physics. The proposed machine learning method uses a time series of typical behavior to approximate the evolution of measurements of interest by a linear time-invariant system. Given additional data from related sensors, a Kalman observer is used to maintain a separate real-time estimate of the measurement of interest. Sustained deviation between the measurements and the estimate is used to detect anomalous behavior. A decision tree, informed by integrating other sensor measurement values, is used to determine the amount of deviation required to identify a sensor fault. We validate the method by applying it to three test systems exhibiting various types of sensor faults: commercial flight test data, an unsteady aerodynamics model with dynamic stall, and a model for longitudinal flight dynamics forced by atmospheric turbulence. In the latter two cases we test fault detection for several prototypical failure modes. The combination of a learned dynamical model with the automated decision tree accurately detects sensor faults in each case.

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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