Issue |
MATEC Web Conf.
Volume 390, 2024
3rd International Scientific and Practical Conference “Energy-Optimal Technologies, Logistic and Safety on Transport” (EOT-2023)
|
|
---|---|---|
Article Number | 02004 | |
Number of page(s) | 7 | |
Section | Interoperability, Safety and Certification in Transport. Environmental Safety in Transport. Barrier-Free Access to Transport Infrastructure | |
DOI | https://doi.org/10.1051/matecconf/202439002004 | |
Published online | 24 January 2024 |
Monitoring of distortions and interferences in ASK-modulated currents of railway signaling systems
1 Ukrainian State University of Science and Technologies, Department of automation and telecommunications, 49010 Dnipro, Lazaryan Street 2, Ukraine
2 Lviv Polytechnic National University, Department of transport technologies, 79013 Lviv, S.Bandery Str., 32, Ukraine
3 Lviv Research Institute of Forensic Expertise, 79024, Lviv, Lypynskoho Str., 54 Ukraine
* Corresponding author: vl.havryliuk@gmail.com
The problem considered in the work concerns the automation of the monitoring of ACK signals, which are widely used in railway signaling systems, namely in track circuits, due to the simplicity of their generation. Due to the low interference immunity of ACK signals under the influence of traction current and other electromagnetic sources at the railways, malfunctions can occur in the operation of train control systems. To prevent possible failures in the operation of track circuits, measurements of the signal parameters on generators and receivers of track circuits are periodically carried out. Such measurements are mainly made manually, therefore they are expensive and do not provide the necessary accuracy of the results. The problem of automating the control of signals in track circuits is related to the correct choice of characteristic features of signal distortions in order to identify excessive distortions that can lead to failures in the operation of track circuits. The article discusses methods for analyzing the signal current in the time and frequency domains to detect signal distortions. It is shown that in addition to the current measurements of the rms voltage of signals in track circuits, it is necessary to monitoring the voltage levels in the pulses and pauses of the signals, as well as the spectral composition of the signals.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.