Train working diagram cooperation system supporting CTCS and CBTC cross-line operation

Abstract

The utility model discloses a train working diagram cooperation system supporting CTCS and CBTC cross-line operation. The system comprises a multi-protocol interface module, a data integration module, a dynamic adjustment module and a safety verification module. The multi-protocol interface module supports protocol conversion between CTCS and CBTC; the data integration module fuses the track circuit state data of the CTCS and the train real-time position data of the CBTC; the dynamic adjustment module dynamically adjusts the station dwell time and the operation interval of the cross-line working diagram; the security verification module detects running diagram conflicts and generates a risk assessment report; the multi-protocol interface module is connected with the data integration module through a bus, the data integration module is connected with the dynamic adjustment module through a high-speed PCle 4.0, the data integration module is connected with the safety verification module through an optical fiber, and the dynamic adjustment module is connected with the safety verification module through an optical fiber interface; according to the utility model, automatic compilation and real-time optimization of the cross-line running diagram are realized.

Description

Technical Field

[0001] This utility model belongs to the field of train operation technology, and in particular relates to a train timetable collaborative editing system that supports cross-line operation of CTCS and CBTC. Background Technology

[0002] CTCS (China Train Control System) and CBTC (Communication-Based Train Control System) are two different train control systems, applicable to high-speed railways and urban rail transit, respectively. Cross-line timetable editing refers to the coordination and integration of train timetables across different systems to support cross-line train operations. CTCS and CBTC employ different technical standards and communication protocols, requiring solutions to compatibility issues between the systems for cross-line operations. For example, CTCS relies on track circuits and GSM-R communication, while CBTC relies on wireless communication networks; therefore, they differ in data transmission and control logic.

[0003] The timetable design logic for high-speed rail and urban rail transit differs. High-speed rail emphasizes long-distance, high-speed operation with fewer stops. Urban rail transit, on the other hand, prioritizes high-density, short-interval operation with frequent stops. Cross-line timetables need to consider the characteristics of both operating modes to ensure train efficiency on different lines.

[0004] Cross-line operation requires ensuring the safe operation of trains on lines with different operating systems, especially during system switching (such as switching from CTCS to CBTC, and from CBTC to CTCS). A unified safety assessment and monitoring mechanism needs to be established to ensure the safety and reliability of cross-line operation.

[0005] In existing technologies, CTCS and CBTC systems serve high-speed railways and urban rail transit respectively, employing different communication protocols, control logic, and timetable compilation rules. In cross-line operation scenarios (such as high-speed trains entering urban rail transit lines), due to system incompatibility, manual switching of control modes and re-compilation of timetables are required, leading to inefficiency and safety hazards. Existing timetable editing tools lack the ability to integrate and dynamically adjust data across multiple systems, making it difficult to meet the needs of cross-line operations.

[0006] Therefore, to address the aforementioned issues, it is necessary to research a collaborative editing system for train timetables that supports cross-line operation of CTCS and CBTC. Summary of the Invention

[0007] In view of the above problems, the purpose of this utility model is to provide a train timetable coordination system that supports cross-line operation of CTCS and CBTC, solves the problems of poor system compatibility, data silos and low efficiency of dynamic adjustment, and realizes the automated compilation and real-time optimization of cross-line timetables.

[0008] This utility model is achieved using the following technical solution:

[0009] A train timetable coordination system that supports cross-line operation of CTCS and CBTC, the system including a multi-protocol interface module, a data integration module, a dynamic adjustment module and a safety verification module;

[0010] The multi-protocol interface module supports protocol conversion between CTCS and CBTC; the data integration module merges the track circuit status data of CTCS with the real-time train location data of CBTC to generate a spatiotemporal resource pool for the cross-line operation plan; the dynamic adjustment module dynamically adjusts the stopping time and running interval of the cross-line operation plan; and the safety verification module detects operation plan conflicts and generates a risk assessment report.

[0011] The multi-protocol interface module and the data integration module are connected via an MVB bus, the data integration module and the dynamic adjustment module are connected via a high-speed PCIe 4.0, the data integration module and the security verification module are connected via a TSN fiber optic cable, and the dynamic adjustment module and the security verification module are connected via a fiber optic LC interface.

[0012] Furthermore, the multi-protocol interface module includes a TCS protocol unit, a CBTC protocol unit, and a protocol converter. The TCS protocol unit is connected to the protocol converter via an industrial Ethernet or communication bus, and the CBTC protocol unit is connected to the protocol converter via a high-speed Ethernet or wireless communication interface.

[0013] Furthermore, CTCS track circuit status data includes train position, movement authorization, and speed profile, while CBTC real-time train position data includes real-time coordinates, dynamic block intervals, and train status.

[0014] Furthermore, the spatiotemporal resource pool adopts a multi-core security processor NXP S32G274A, the storage layer hardware adopts an industrial-grade SSD solid-state drive Samsung PM1733, and the communication layer hardware adopts a TSN switch Hirschmann OCTOPUS PT5160.

[0015] Furthermore, the dynamic adjustment module hardware uses NXP S32G274A and Xilinx Versal, which are connected via high-speed PCIe 4.0.

[0016] Furthermore, the security verification module hardware uses Infineon TC397, Xilinx Versal and Siemens SCALANCE switches. Infineon TC397 and Xilinx Versal transmit key commands through an isolated SPI bus, and Infineon TC397 and Siemens SCALANCE are connected through TSN fiber optic cable.

[0017] The beneficial technical effects of this utility model are as follows:

[0018] This invention improves compatibility by enabling seamless integration between the CTCS and CBTC systems through a multi-protocol interface module, reducing manual intervention; optimizes efficiency by having a dynamic adjustment module that supports real-time updates of the operation diagram, reducing cross-line operation delays; and includes a security verification module that anticipates potential conflicts, ensuring that cross-line operation diagrams meet safety standards. Attached Figure Description

[0019] Figure 1 This utility model provides a schematic diagram of a train timetable coordination system that supports cross-line operation of CTCS and CBTC. Detailed Implementation

[0020] This utility model discloses a train timetable collaborative editing system that supports cross-line operation of CTCS and CBTC. The system includes a multi-protocol interface module, a data integration module, a dynamic adjustment module, and a security verification module.

[0021] The multi-protocol interface module supports protocol conversion between CTCS and CBTC, including a CTCS protocol unit, a CBTC protocol unit, and a protocol converter. The CTCS protocol unit (including the GSM-R communication unit) is connected to the protocol converter via an industrial Ethernet or communication bus, and the CBTC protocol unit (including the LTE-M wireless unit) is connected to the protocol converter via a high-speed Ethernet or wireless communication interface. The CTCS protocol unit uses the MPC5748G as its main controller, and the GSM-R communication unit uses the GTM800-B and MENMVB-356. The CBTC protocol unit uses the LS1028A gateway as its main controller, and the LTE-M wireless unit uses the Qualcomm QCA9880 and MH5000. The protocol converter uses the Xilinx Zynq UltraScale+, and the synchronization uses the Meinberg M1000.

[0022] The data integration module merges the track circuit status data from CTCS with the real-time train location data from CBTC to generate a spatiotemporal resource pool for cross-line operation diagrams. The CTCS data stream output includes train position, movement authorization, and speed curves, provided to the spatiotemporal resource pool via the railway train communication network standard IECS61375-1. The CBTC data stream output includes real-time coordinates, dynamic block intervals, and train status, provided to the spatiotemporal resource pool via the CBTC protocol standard IEEE1474. The spatiotemporal resource pool's computing layer hardware uses the multi-core secure processor NXP S32G274A, the storage layer hardware uses the industrial-grade SSD Samsung PM1733, and the communication layer hardware uses the TSN switch Hirschmann OCTOPUSPT5160. The spatiotemporal resource pool's real-time operating system can be QNX Neutrino RTOS, VxWorks653, or Linux PREEMPT-RT, and the spatiotemporal data software can be RailDB, TimescaleDB, or Oracle Rail RDF. The spatiotemporal resource pool algorithm combines time window conflict detection (the traditional CTCS method) with mixed-integer linear programming.

[0023] The dynamic adjustment module is based on a reinforcement learning algorithm and aims to minimize train delays and energy consumption by dynamically adjusting the stop times and intervals of cross-line timetables. The hardware of the dynamic adjustment module uses NXP S32G274A and Xilinx Versal. The NXP S32G274A and Xilinx Versal are connected via a high-speed PCIe 4.0. The software uses QNX Neutrino, GurobiMILP and Siemens RailSafe, and the algorithm is accelerated and optimized using FPGA.

[0024] The safety verification module utilizes a digital twin platform to simulate cross-line operation scenarios, detects operational diagram conflicts (such as track resource competition), generates risk assessment reports, and outputs optimization suggestions. The hardware of the safety verification module employs Infineon TC397, Xilinx Versal, and Siemens SCALANCE switches. The Infineon TC397 and Xilinx Versal transmit critical commands via an isolated SPI bus, while the Infineon TC397 and Siemens SCALANCE are connected via TSN fiber optic cable. The software utilizes Vxworks 653, SCADE suite, and WolfSSL. The algorithm employs a formal verification algorithm, mathematically proving track occupancy mutual exclusion.

[0025] The MEN MVB-356 multi-protocol interface module and the NXP S32G274A data integration module are connected via an MVB bus (IEC 61375 standard). The NXP S32G274A data integration module and the Xilinx Versal dynamic adjustment module are connected via a high-speed PCIe 4.0 interface. The NXP S32G274A data integration module and the Infineon TC397 security authentication module are connected via a TSN fiber optic cable; the Xilinx Versal dynamic adjustment module and the Infineon TC397 security authentication module are connected via a fiber optic LC interface.

[0026] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A train working diagram coordination system supporting CTCS and CBTC cross-line operation, characterized in that, The system includes a multi-protocol interface module, a data integration module, a dynamic adjustment module, and a security verification module; The multi-protocol interface module supports protocol conversion between CTCS and CBTC; the data integration module merges the track circuit status data of CTCS with the real-time train location data of CBTC to generate a spatiotemporal resource pool for the cross-line operation diagram; the dynamic adjustment module dynamically adjusts the stopping time and running interval of the cross-line operation diagram. The security verification module detects conflicts in the runtime graph and generates a risk assessment report; The multi-protocol interface module and the data integration module are connected via an MVB bus, the data integration module and the dynamic adjustment module are connected via a high-speed PCIe 4.0, the data integration module and the security verification module are connected via a TSN fiber optic cable, and the dynamic adjustment module and the security verification module are connected via a fiber optic LC interface.

2. The train diagram coordination system supporting CTCS and CBTC cross-line running according to claim 1, characterized in that: The multi-protocol interface module includes a TCS protocol unit, a CBTC protocol unit, and a protocol converter. The TCS protocol unit is connected to the protocol converter via an industrial Ethernet or communication bus, and the CBTC protocol unit is connected to the protocol converter via a high-speed Ethernet or wireless communication interface.

3. The train diagram coordination system supporting CTCS and CBTC cross-line running according to claim 1, characterized in that: CTCS track circuit status data includes train position, movement authorization, and speed profile, while CBTC real-time train position data includes real-time coordinates, dynamic block intervals, and train status.

4. The train diagram coordination system supporting CTCS and CBTC cross-line running according to claim 1, characterized in that: The spatiotemporal resource pool uses a multi-core security processor NXP S32G274A, the storage layer hardware uses an industrial-grade SSD Samsung PM1733, and the communication layer hardware uses a TSN switch Hirschmann OCTOPUSPT5160.

5. The train working diagram coordination system supporting CTCS and CBTC cross-line running of claim 1, wherein: The dynamic adjustment module hardware uses NXP S32G274A and Xilinx Versal, which are connected via high-speed PCIe 4.

0.

6. The train working diagram coordination system supporting CTCS and CBTC cross-line running of claim 1, wherein: The security verification module hardware uses Infineon TC397, Xilinx Versal and Siemens SCALANCE switches. Infineon TC397 and Xilinx Versal transmit key commands through an isolated SPI bus, and Infineon TC397 and Siemens SCALANCE are connected through TSN fiber optic cable.

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