Stock Code：688618

Enabling Safe & Efficient Railway Infrastructure

400+ Successful Cases Worldwide

Successfully deployed in more than 400+ train and metro projects

Product Certification

Complies with IEC 61375, EN 50155 and EN 50121-4

Leading the Market

No.1 in domestic market of rail specific Ethernet Switches for many years in a row

Application

  • Onboard PIS
  • Pantograph-OCS System Monitoring
  • Automatic Train Control System
  • ISCS Integrated Supervisory Control System

Onboard PIS

Passenger Information System provides passengers with voice broadcast, emergency alarm, station information display, multimedia information playback, as well as broadcast intercom and video monitoring for the crew.

Why 3onedata

Onboard PIS
  • Diversified Layer2/Layer3 product forms; standard rack-mounted/wall/embedded switch products available
  • Standard M12 interface to ensure stable and reliable connection on the train
  • 3onedata industrial grade redundant ring protocol SW-Ring, self-healing time ≤ 20ms, while supporting STP/RSTP, ERPS, MRP and other ring protocols)

Pantograph-OCS System Monitoring

Install on-board overhead lines operation status detection devices on operating trains to improve the operational stability and reliability of the Pantograph-OCS system and ensure the safe operation of rail transit.

Why 3onedata

Pantograph-OCS System Monitoring
  • Industrial-grade design for real-time data collection of the operating status of the on-board Pantograph-OCS system
  • Enables WWAN (Wide Area Network) communication for serial and Ethernet remote devices
  • Support dual power supplies, dual SIM cards, cellular WAN and Ethernet WAN and other redundancy mechanisms, intelligent switching backup
  • Built-in various VPN encryption protocols, network firewall, DMZ settings, etc., to ensure "unlimited" security of data transmission in the cloud)

Automatic Train Control System

The main role of the automatic train control system is to complete the interval control and speed control of the train, ensuring the safe and fast operation of the train.

Why 3onedata

Automatic Train Control System
  • The overall system adopts standard TCN architecture and uses standard Ethernet broadband network as the backbone, while achieving link redundancy and equipment redundancy to effectively enhance the reliability of the whole network
  • Ethernet repeaters are used in the middle of the backbone to effectively reduce the overall network latency caused by the increase of backbone nodes
  • The backbone ETB network meets TTDP, R-NAT as specified in IEC 61375-2-5
  • Downlinked ECN networks meet the relevant standards of IEC 71375-3-4
  • The entire network uses the Train Real Time Data Protocol TRDP for information interaction)

ISCS Integrated Supervisory Control System

To build a unified operation platform and centralized monitoring system, to realize information interoperability and resource sharing among various professional systems of rail transit, to improve the coordination and cooperation between each system, to realize the linkage between systems efficiently, and to improve the overall automation level of the whole rail transit line.

Why 3onedata

ISCS Integrated Supervisory Control System
  • Support 10 Gigabit dual-ring redundant core network, providing sufficient guarantee for transmitting high bandwidth data transmission bandwidth
  • Support operation between -40~75℃ wide temperature, high EMC protection level, ultra stability
  • Support STP/RSTP/MSTP, ERPS, MRP, SW-Ring, etc. with self-healing time ≤ 20ms
  • IP40 protection level, fan-less design, supports dual power supply, fault free operation)

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Case Studies

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On-board PIS of Shanghai Metro Line 3&4

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