Track-monitoring from the dynamic response of an operational train
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- 作者：George Ledermana ; b ; george.lederman@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Siheng Chenb ; sihengc@andrew.cmu.edu" class="auth_mail" title="E-mail the corresponding author ; James Garretta ; garrett@cmu.edu" class="auth_mail" title="E-mail the corresponding author ; Jelena Kovačevićb ; c ; jelenak@cmu.edu" class="auth_mail" title="E-mail the corresponding author ; Hae Young Noha ; b ; noh@cmu.edu" class="auth_mail" title="E-mail the corresponding author ; Jacobo Bielaka ; jbielak@cmu.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Rail maintenance ; Signal processing ; Change detection ; Vehicle-based inspection ; Data acquisition ; Position uncertainty
- 刊名：Mechanical Systems and Signal Processing
- 出版年：2017
- 出版时间：15 March 2017
- 年：2017
- 卷：87
- 期：part_PA
- 页码：1-16
- 全文大小：2958 K
文摘
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Accelerometers in the cabin of a passenger train are used to monitor the tracks.
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Challenges due to varying train speed and GPS position uncertainty are addressed.
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Robust features and unsupervised change detection approaches are proposed.
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We validate using 2-years of operational train data that we collected in Pittsburgh.