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故障诊断 过程有三个主要步骤，检测设备状态的特征信号、从所检测到的特征信号中提取征兆及根据征兆和其它诊断信息来识别设备的状态，如图１所示。 目前用于系统故障诊断的方法可分为两大类：一类是完全基于检测数据处理的传统诊断方法，如对比诊断法、振动诊断法、模型识别
The troubleshooting process has three main steps: detecting the status of the device; retrieving the symptoms from the detected signature; and identifying the status of the device based on symptoms and other diagnostic information, as shown in Figure 1. The current methods for system fault diagnosis can be divided into two categories: one is based entirely on the detection of data processing traditional diagnostic methods, such as contrast diagnosis, vibration diagnosis, model identification