在灰色系统理论中,“黑”和“白”分别是指对系统内部结构、状态和待征等一无所知和一清二楚,“灰”则是界于两者之间。灰色系统理论就是研究信息不完全的对象,关系不明确的机制。任何设备或其零部件都可视为一个灰色系统,设备的正常状态和异常状态之间即是灰现象。用灰色系统理论诊断设备故障,可以充分利用设备信息。根据已 In the gray system theory, “black” and “white” respectively refer to ignorance and clarity about the internal structure, status and symptoms of the system, and “gray” is the boundary between the two. Gray system theory is to study the object of incomplete information, the relationship is not clear mechanism. Any device or its components can be regarded as a gray system, the normal state and abnormal state of the device is a gray phenomenon. Using gray system theory to diagnose equipment failures, you can make full use of equipment information. According to already