Light train control system applied to oversea freight railways

Patent metadata

Field	Value
Publication number	US-12589783-B2
Application number	US-202118003851-A
Country	US
Kind code	B2
Filing date	Sep 23, 2021
Priority date	Dec 22, 2020
Publication date	Mar 31, 2026
Grant date	Mar 31, 2026

Abstract

The disclosure relates to a light train control system applied to oversea freight railways. The system integrates automatic block, station turnout control and train operation overspeed protection control and comprises an on-board subsystem, an RBC subsystem and a satellite positioning differential base station management subsystem, wherein the on-board subsystem is respectively connected to the RBC subsystem and the satellite positioning differential base station management subsystem. The light train control system adopts two-way continuous train-ground wireless communication and uses on-board signals as main signals of train operation to control the train operation; meanwhile, the system monitors the train operation, so as to provide an alarm to a driver when the situation changes, and to brake a train when necessary; and the system uses an electronic map to manage line data of a whole line, achieves dynamic configuration of the transport capacity by means of a virtual block technology, and remotely controls basic signaling equipment by means of an RBC. Compared with the prior art, the disclosure has the advantages of efficient system operation and simplified trackside equipment.

First claim

The invention claimed is:

1 . A light train control system applied to oversea freight railways, the system integrating automatic block, station turnout control and train operation overspeed protection control and comprising an on-board subsystem, an RBC subsystem and a satellite positioning differential base station management subsystem, wherein the on-board subsystem is respectively connected to the RBC subsystem and the satellite positioning differential base station management subsystem by means of on-board equipment external interfaces;
the light train control system adopts two-way continuous train-ground wireless communication and uses on-board signals as main signals of train operation to control the train operation; meanwhile, the system monitors the train operation, so as to provide an alarm to a driver when the situation changes, and to brake a train when necessary; and the system uses an electronic map to manage line data of a whole line, achieves dynamic configuration of the transport capacity by means of a virtual block technology, and remotely controls basic signaling equipment by means of an RBC, wherein the on-board subsystem comprises on-board host OBS and on-board peripheral equipment, and the on-board peripheral equipment is connected to the on-board equipment external interfaces by means of the on-board host OBS, wherein the on-board host OBS comprises an ATP master control unit and a speed and distance measurement unit, a balise information receiving unit, a train integrity receiving unit, a data recording unit, a train interface unit, a wireless transmission unit and a satellite receiving unit which are respectively connected to the ATP master control unit; and the on-board host OBS determines the speed and the position by combining satellite information, a balise and a speed sensor to measure the speed and the distance, wherein the system realizes the train-ground wireless communication and wireless communication between the on-board host OBS and train tail equipment in the low-density freight railways by means of a DMR digital co-frequency relay technology, and digital signals are received and synchronously forwarded via a DMR co-frequency relay base station to ensure timely communication and to reduce delay.

2 . The system according to claim 1 , wherein the on-board equipment external interfaces include a train interface, a power interface, an RBC interface, a GNSS interface and a balise interface.

3 . The system according to claim 1 , wherein the on-board peripheral equipment comprises a man-machine interface unit, a speed sensor, a balise information receiving antenna, a wireless antenna and a satellite receiving antenna.

4 . The system according to claim 1 , wherein the on-board host OBS completes train integrity inspection by means of satellite positioning and air pressure detection.

5 . The system according to claim 1 , wherein the RBC subsystem comprises a radio block center (RBC), which sends movement authority to the train through a communication network by means of RBC remote driving, collection of the state of a station turnout, the state of a signal and the state of a track circuit and combination with the stored line data and a position report sent by the station.

6 . The system according to claim 5 , wherein the communication network comprises DMR, VHF and TETRA communication modes.

7 . The system according to claim 1 , wherein the system uses balise information as a reference point to report a train position in the station and a section with a balise, and uses a virtual balise as a reference train position report in a section without the balise.

8 . The system according to claim 1 , wherein the automatic block is a single automatic block.

9 . The system according to claim 8 , wherein the light train control system does not include a ground signal and track circuit.

10 . The system according to claim 9 , wherein the RBC is configured to remotely control the turnout.

11 . The system according to claim 10 , wherein the satellite receiving unit is configured to receive the satellite information from a Beidou satellite.

Assignees

• Casco Signal Ltd

Inventors

• Na Jiqing
• Wang Tao
• Chen Zhixin
• Zhang Yajing
• Guo Liang

Classifications

• B61L2205/04

  Satellite based navigation systems, e.g. global positioning system [GPS] · CPC title

• B61L25/025

  Absolute localisation, e.g. providing geodetic coordinates · CPC title

• B61L23/16

  Track circuits specially adapted for section blocking · CPC title

• B61L15/0027

  Radio-based, e.g. using GSM-R · CPC title

• B61L27/70

  Details of trackside communication · CPC title