Patent ID: 11875500
Assignee: WUHAN UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. The failure diagnosis method as claimed in claim 1, wherein converting the multi-source vibration data into the gray-scale images in Step 2 comprises:
dividing multi-source vibration signals, as input signals, into n numerical arrays according to a randomization principle, an intercept point is randomly chosen, each numerical array sample is converted into a M*N matrix, the M*N matrix is converted into a size of an image through spatial-domain mapping, a spatial coordinate position of each point in the numerical array corresponds to each pixel point of a pixel, an intercepted numerical array is normalized, and the numerical array is converted into a pixel gray-level value range of 0 to 255 of the gray-scale images, so that numerical values are mapped to corresponding pixel points in an image, and a value of each of the pixel points is clearly expressed with a number from 0 to 255, all feature information of the image is extracted, and finished gray-scale images are output.