Solution

Atekon Technology Co., Ltd.

High-Speed Rail Disaster Prevention and Monitoring System Solution

Release date:

2020-05-15

For railway transportation, operational safety is paramount—especially for high-speed railways. As train speeds continue to increase, the variety of potential hazards also grows accordingly. This high-speed rail line is particularly vulnerable to strong winds and heavy rainfall. To ensure safe operations and enhance transportation efficiency, it is essential to establish a comprehensive meteorological monitoring system capable of detecting wind and rain conditions in real time. This will equip the high-speed railway with the ability to withstand adverse weather events such as strong winds and torrential rains, minimizing risks and preventing disasters. In the past, when trains operated at lower speeds and relied primarily on manual driving, even if obstacles appeared on the track, there was sufficient time and distance—enough to visually spot the hazard and safely bring the train to a stop—resulting in fewer accidents.

For railway transportation, operational safety is paramount—especially for high-speed railways. As train speeds continue to increase, the variety of potential hazards also grows accordingly. This high-speed rail line is particularly vulnerable to strong winds and heavy rainfall. To ensure safe operations and enhance transportation efficiency, it is essential to establish a comprehensive meteorological monitoring system capable of tracking wind and rain conditions, enabling the high-speed railway to withstand adverse weather events such as storms and downpours. In the past, when trains operated at lower speeds and relied primarily on manual driving, even if obstacles appeared on the track, there was sufficient time and distance—both visually and in terms of braking—to safely stop the train, resulting in fewer accidents. When high-speed railway trains operate at speeds of 250 km/h or higher, visual observation alone can no longer guarantee行车安全, and the risk significantly increases. Therefore, it is necessary to consider the impact of falling objects on train operations.

The railway department refers to the aforementioned system equipment as the "Disaster Prevention and Safety Monitoring System."

The disaster prevention system is an integrated system comprising a wind monitoring subsystem, a rainfall monitoring subsystem, an earthquake monitoring subsystem, and a foreign object intrusion detection subsystem.

The Application of AOTEC NA-PLC in Railway Safety and Disaster Prevention Monitoring Systems

The railway safety disaster prevention monitoring system consists of a multi-level transmission structure: sensors → monitoring units (with the PLC serving as the main controller) → upper-level monitoring host computers (data center) → various terminals (for display). The sensors primarily include wind, rain, snow, earthquake, and foreign-object intrusion detectors. Among these, only the foreign-object intrusion sensor outputs discrete signals, while all other sensors transmit digital data via RS485. The monitoring units collect data from these various sensors, perform preliminary processing, and then package the information before transmitting it to the data center over Ethernet (TCP/IP). Finally, the data center stores the information in a database and distributes it to the respective terminals for real-time display.

  • Collecting data from on-site meteorological sensors, the data types primarily consist of digital quantities in RS485 format;
  • Collect data from the on-site foreign object intrusion sensors, which provide digital input/output signals—specifically, about 24 points of DI and 16 points of DO.
  • Evaluate the collected sensor data, perform preprocessing, and package it accordingly;
  • Transfer the packaged data to the upper-level monitoring host (data center) via Ethernet;
  • Receive commands sent from the higher-level monitoring host and control I/O outputs.

 

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