Patent ID: 11958719
Assignee: CHANGSHU INSTITUTE OF TECHNOLOGY
Field: Handling (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 4:
5. The action state detection method for the elevator brake according to claim 1, wherein the braking performance distance is:, Q
   ⁡
   (
   
    
     p
     ′
    
    ,
    
     r
     K
    
   
   )
  
  =
  
   
    L
    ⁢
    1
    ⁢
    
     (
     
      
       M
       
        p
        ′
       
      
      ,
      
       M
       rK
      
     
     )
    
    *
    
     DTW
     ⁡
     (
     
      
       S
       
        p
        ′
       
      
      ,
      
       S
       rK
      
     
     )
    
   
   
    H
    ⁡
    (
    
     
      p
      ′
     
     ,
     r
    
    )
   
  
 

wherein Q(p′, rK) is the braking performance distance of a neighboring sample rK of brake lining p′ and brake lining r in the matching pair; Mp′ is the counterweight of the brake lining p′; Sp′ is the stress sequence of the brake lining p′; MrK is the counterweight of the neighboring sample rK; SrK is the stress sequence of the neighboring sample rK of the brake lining r; DTW( ) is a dynamic time warping function; L1( ) is a norm; and K is the number of the neighboring samples.