公开(公告)号：US20230258612A1

公开(公告)日：2023-08-17

申请号：US18106116

申请日：2023-02-06

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： Jungtai KIM ,  Hyeyeun CHUN ,  Yongki YOON ,  Yongkyu KIM ,  Kyeongjun KO ,  Seongjin KIM ,  Chankyoung PARK ,  Raggyo JEONG

IPC: G01N29/44 ,  G01N29/04 ,  G01N29/46

CPC classification number: G01N29/4481 ,  G01N29/04 ,  G01N29/46 ,  G01N2291/2623 ,  G01N2291/0289

Abstract: In a method for detecting rail fracture, vibration data generated according to train operation is inputted, and the vibration data is collected using a distributed acoustic sensing (DAS) system. The inputted vibration data is imaged into the relationship between time and frequency. The imaged image is learned. Rail fracture of train is decided from the imaged vibration data, based on the learning.