Patent ID: 11860216
Assignee: QINGDAO TOPSCOMM COMMUNICATION CO., LTD
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 4:
5. The method for detecting a fault arc signal according to claim 3, further comprising:
performing normalization on each of the 300-dimensional time-frequency eigenvectors to eliminate influences of dimensions of different eigenvalues, wherein the normalization is performed by using the following equation:, x
   [
   n
   ]
  
  =
  
   
    
     x
     [
     n
     ]
    
    -
    
     min
     ⁡
     (
     X
     )
    
   
   
    
     max
     ⁡
     (
     X
     )
    
    -
    
     min
     ⁡
     (
     X
     )
    
   
  
 

where x[n] represents an n-th element in the eigenvector, and x[n] represents an element after normalization; X represents the eigenvector; max(X) represents an element with a maximum value in the eigenvector X; and min(X) represents an element with a minimum value in the eigenvector X.