Hard-point detection of catenary based on Hidden Markov Model

被引：1
|
作者：
Tian, Shuxia [1 ]
Zhang, Penghui [1 ]
Huang, Liping [1 ]
Song, Xueqian [1 ]
Chen, Zhenmao [2 ]
Liu, Jianxiu [1 ]
He, Wenbin [1 ]
Cao, Yang [1 ]
机构：
[1] Zhengzhou Univ Light Ind, Henan Key Lab Intelligent Mfg Mech Equipment, Zhengzhou, Peoples R China
[2] Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Xian, Peoples R China
来源：
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS | 2020年 / 64卷 / 1-4期
关键词：
Hard-point; pantograph and catenary acceleration; white noise filtering; Hidden Markov Model (HMM); PANTOGRAPH; DYNAMICS;
D O I：
10.3233/JAE-209381
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Hard-point detection is an important content of catenary detection. In this paper, the pantograph-catenary coupling model was established firstly. Then the vertical acceleration of pantograph during operation was calculated by using three-dimensional modeling software and finite element analysis software. The acceleration signal mixed with white noise was filtered by global default threshold, and the hard-point detection feature signal was obtained. Finally, the Hidden Markov Model corresponding to each state of the hard-point was obtained by using the characteristic signal, which verified the feasibility of the Hidden Markov Model for hard-point detection.
引用
收藏
页码：701 / 709
页数：9
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