Patents by Inventor Hyeyeun CHUN

Hyeyeun CHUN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD FOR DETECTING RAIL FRACTURE USING IMAGE TRANSFORMATION OF VIBRATION DATA MEASURED BY DISTRIBUTED ACOUSTIC SENSING TECHNOLOGY
    Publication number: 20230258612
    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.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 17, 2023
    Applicant: KOREA RAILROAD RESEARCH INSTITUTE
    Inventors: Jungtai KIM, Hyeyeun CHUN, Yongki YOON, Yongkyu KIM, Kyeongjun KO, Seongjin KIM, Chankyoung PARK, Raggyo JEONG