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

页码：701 / 709

页数：9

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