Rail transit signal system with multi-network integration

Patent metadata

Field	Value
Publication number	US-12570340-B2
Application number	US-202118005475-A
Country	US
Kind code	B2
Filing date	Sep 22, 2021
Priority date	Mar 25, 2021
Publication date	Mar 10, 2026
Grant date	Mar 10, 2026

Abstract

The present disclosure relates to a rail transit signal system with multi-network integration, including: a wayside train control subsystem for simultaneously supporting mixed tracking operation of a China train control system (CTCS)-based national railway train and a communication based train control (CBTC)-based urban rail transit train; a compatible carborne subsystem for realizing cross-line operation of a national railway line network, an intercity railway network, a municipal railway network, and an urban rail transit network; a networked intelligent dispatching subsystem for realizing intelligent dispatching management of rail transit line networks and cooperation of line network operation plans between different rail transit line networks; an interlocking subsystem being respectively communicatively connected to and interacting with the wayside train control subsystem, the compatible carborne subsystem, and the networked intelligent dispatching subsystem; and a wireless train-ground communication subsystem for simultaneously providing communication for the national railway train and the urban rail transit train. Compared to the prior art, the present disclosure has the advantages of interconnection and interworking, deep integration, etc.

First claim

The invention claimed is:

1 . A rail transit signal system with multi-network integration, comprising:
a wayside train control subsystem for simultaneously supporting tracking operation of a China train control system (CTCS)-based national railway train and a communication based train control (CBTC)-based urban rail transit train, the wayside train control subsystem being configured to control trains having a target speed, a line length, a station spacing, and an operation interval different from each other; a compatible carborne subsystem for realizing cross-line operation of a national railway line network, an intercity railway network, a municipal railway network, and an urban rail transit network; a networked intelligent dispatching subsystem for realizing intelligent dispatching management of rail transit line networks and cooperation of line network operation plans between different rail transit line networks; an interlocking subsystem being respectively communicatively connected to and interacting with the wayside train control subsystem, the compatible carborne subsystem, and the networked intelligent dispatching subsystem; and a wireless train-ground communication subsystem for providing communication for the national railway train and the urban rail transit train, wherein the wayside train control subsystem includes a zone controller, a radio block center, a train control center, a temporary speed restriction server, a track circuit, and a beacon,
the zone controller being connected to the compatible carborne subsystem, the networked intelligent dispatching subsystem, and the interlocking subsystem,
the radio block center being connected to the temporary speed restriction server, the compatible carborne subsystem, and the interlocking subsystem,
the train control center being connected to the track circuit, the beacon, the temporary speed restriction server, the networked intelligent dispatching subsystem, and the interlocking subsystem,
the temporary speed restriction server, the track circuit, and the beacon being connected to the compatible carborne subsystem, and
the track circuit being connected to the interlocking subsystem,
wherein the wayside train control subsystem further includes a wayside switch machine and a signal machine connected to the train control center,
the train control center being configured to generate a code sequence of the track circuit and a movement authority based on location information of the train and collected equipment status information of the wayside switch machine, the signal machine, and the track circuit, to control operation of trains of different systems and to realize safety interval protection between the trains,
wherein the networked intelligent dispatching subsystem is configured to manage a fixed number of national railway trains and an unfixed number of urban rail transit trains by labeling train attributes, wherein the interlocking subsystem is configured to
control the switch machine and the signal machine based on a route command,
collect statuses of a platform door, an emergency stop button, and the track circuit, and
lock and unlock of a route,
wherein the interlocking subsystem includes interfaces with the zone controller, the wayside train control subsystem, and the compatible carborne subsystem.

2 . The rail transit signal system with multi-network integration according to claim 1 , wherein the compatible carborne subsystem includes a platform that is compatible with the CTCS-based national railway train and the CBTC-based urban rail transit train.

3 . The rail transit signal system with multi-network integration according to claim 2 , wherein in the national railway system line network, the compatible carborne subsystem
includes a radio block center interface with national railway train control, is configured to control the train operation based on a movement authority provided by the radio block center, and when the radio block center is unavailable, is configured to control the train operation based on track circuit information and beacon information by reading a code sequence of a track circuit and the beacon information.

4 . The rail transit signal system with multi-network integration according to claim 2 , wherein in the urban rail system line network, the compatible carborne subsystem includes an interface with a zone controller and is configured to control the train operation based on a movement authority provided by the zone controller.

5 . The rail transit signal system with multi-network integration according to claim 1 , wherein the networked intelligent dispatching subsystem is configured to dynamically display a line equipment status and a train operation status in real time, to provide system operation modes corresponding to the line equipment status and the train operation status, to manage operation missions of the trains operating in the line networks according to a timetable, to manage cross-line network operation train plans between different rail transit line networks, to record operation data to generate a statistical report, and to provide playback and training functions.

6 . The rail transit signal system with multi-network integration according to claim 1 , wherein the wireless train-ground communication subsystem includes a communication module configured to provide a global system for mobile communications-railway (GSM-R) communication for the national railway train and a long term evolution-machine (LTE-M) communication for the urban rail transit train.

7 . The rail transit signal system with multi-network integration according to claim 1 , wherein the wireless train-ground communication subsystem includes interfaces for LTE to provide both an LTE-M service and a long term evolution-railway (LTE-R) service.

Assignees

• Casco Signal Ltd

Inventors

• Xing Yanyang
• Wang Xiaoyong
• Xu Haigui
• Liu Huaxiang
• Pan Liang
• Xu Ye
• Lu Yiran
• Feng Wei

Classifications

• B61L2205/02

  Global system for mobile communication - railways [GSM-R] · CPC title

• B61L2201/00

  Control methods · CPC title

• B61L19/06

  Interlocking devices having electrical operation · CPC title

• B61L27/70

  Details of trackside communication · CPC title

• B61L27/30 Primary

  Trackside multiple control systems, e.g. switch-over between different systems · CPC title