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首页> 外文期刊>International Journal of Sensor Networks >System-level BIT false alarm reducing technology based on sensor network time stress analysis and the fault propagation correlation model
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System-level BIT false alarm reducing technology based on sensor network time stress analysis and the fault propagation correlation model

机译：基于传感器网络时间应力分析和故障传播关联模型的系统级BIT误报减少技术

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摘要

Equipment fault propagation and sensor faults are the main causes of false alarms in built-in test (BIT) systems. Hence, the current paper analyses the mechanism of system-level BIT false alarms. The technical process of system-level BIT false alarm recognition is presented. First, sensor damage states are estimated using sensor network time stress data generated during its lifetime. In different damage states, a dual support vector machine (SVM) relevance model is built, it can recognise system-level BIT type II false alarms induced by sensor faults. Subsequently, a fault propagation correlation model of the sensor network is set up. Based on this model, a false alarm recognition method is proposed based on probability reasoning. This method can effectively reduce system-level BIT type I false alarms caused by sensor network fault propagation. Lastly, a case about the helicopter horizon system is studied to validate the proposed technology.
机译：设备故障传播和传感器故障是内置测试（BIT）系统中错误警报的主要原因。因此，本文分析了系统级BIT虚警的机制。介绍了系统级BIT误报识别的技术过程。首先，使用在传感器寿命期间生成的传感器网络时间应力数据来估计传感器损坏状态。在不同的损坏状态下，建立了双支持向量机（SVM）相关性模型，它可以识别传感器故障引起的系统级BIT II型错误警报。随后，建立传感器网络的故障传播相关模型。在此模型的基础上，提出了一种基于概率推理的错误警报识别方法。该方法可以有效减少传感器网络故障传播所引起的系统级BIT I类误报。最后，以直升机地平线系统为例，对所提出的技术进行了验证。

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