Patent ID: 11928613
Assignee: EAST CHINA JIAOTONG UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. The bearing fault diagnosis method based on the fuzzy broad learning model according to claim 1, wherein the normalization processing is expressed by a function formula:, x
   ′
  
  =
  
   
    x
    -
    
     min
     ⁡
     (
     x
     )
    
   
   
    
     max
     ⁡
     (
     x
     )
    
    -
    
     min
     ⁡
     (
     x
     )
    
   
  
 

wherein x is a total feature set formed by fusing the time-domain feature parameters, the frequency-domain feature parameters, and the time-frequency-domain feature parameters, x′ is a normalized feature set, min (x) is a minimum value of the total feature set, and max (x) is a maximum value of the total feature set.