Test system for heavy haul train group operation simulation

Abstract

The invention discloses a test system for heavy haul train group operation simulation. The test system comprises a data center laboratory, a ground control laboratory, a vehicle-mounted control laboratory and a central coordination center, the data center laboratory, the ground control laboratory and the vehicle-mounted control laboratory are in network connection through the central coordination center; the data center laboratory is used for collecting real-time data of the train and the surrounding environment; the ground control laboratory is used for simulating ground scheduling and control; the vehicle-mounted control laboratory is used for simulating train operation and verifying response of a vehicle-mounted system to a ground instruction and cooperation between trains; and receiving real-time data of the train and the surrounding environment from the data center laboratory and a ground instruction from the ground control laboratory to realize dynamic simulation of the train. The system can support scientific research, development and testing of new vehicle-mounted products and new equipment, and can also be used for training group train drivers and passengers.

Description

Technical Field

[0001] The present invention belongs to the technical field of virtual simulation, and particularly relates to a test system for heavy-haul train group operation simulation. Background Art

[0002] With the continuous development of heavy-haul trains, virtual formation, as a new train operation organization method, has gradually received attention and application. Train virtual formation is to combine multiple train units into a formation for operation in a virtual way through digital communication and train control technologies. A safe interval is maintained between trains, but they are regarded as a whole from the perspective of the control system. Its development trend is to combine intelligent and automated technologies to further improve the train operation efficiency and service quality. Virtual formation is a train operation organization method, and its core lies in achieving flexible formation and reorganization of trains through technical means to improve transportation efficiency and meet different transportation demands.

[0003] There are many difficulties in the operation of train virtual formation. Firstly, it has technical complexity. Train virtual formation involves a number of key technologies, including train communication, cooperative control, train automatic driving, etc. At the same time, comprehensive tests need to be carried out under the conditions of multi-train cooperative operation and emergencies. This results in huge costs for full-system testing in the real railway environment and it is difficult to fully simulate various working conditions. At the same time, the system requires powerful algorithms and artificial intelligence support to achieve real-time decision-making. The existing train virtual formation test and verification methods are difficult to meet the development needs of train virtual formation technology, especially in terms of algorithms, control strategies, and communication systems for testing and verifying virtual formation operation.

[0004] Therefore, it is necessary to design a test system for heavy-haul train group operation simulation. Summary of the Invention

[0005] The purpose of the present invention is to provide a test system for heavy-haul train group operation simulation to solve the problem that the existing train virtual formation test and verification methods are difficult to meet the development needs of train virtual formation technology, especially in terms of algorithms, control strategies, and communication systems for testing and verifying virtual formation operation as put forward in the background art.

[0006] To achieve the above object, the present invention provides a test system for overloaded train group operation simulation, including a data center laboratory, a ground control laboratory, a vehicle control laboratory and a central coordination center; the data center laboratory, the ground control laboratory and the vehicle control laboratory are network-connected through the central coordination center to form a real-time linkage test environment; the vehicle control laboratory is provided with a vehicle simulation platform, and the vehicle simulation platform includes a number of virtual trains and at least two simulated trains; the data center laboratory is used to collect real-time data of the train and its surrounding environment and transmit it to the ground control laboratory and the vehicle control laboratory; the ground control laboratory is used to simulate ground dispatching and control, receive real-time data of the train and its surrounding environment from the data center laboratory, and issue ground instructions to the vehicle control laboratory for vehicle system simulation; the vehicle control laboratory is used to simulate train operation, verify the response of the vehicle system to ground instructions and the cooperation between trains; receive real-time data of the train and its surrounding environment from the data center laboratory and ground instructions from the ground control laboratory to achieve dynamic simulation of the train.

[0007] In a specific embodiment, real ATP, ATO and radios are provided on the simulated train, a simulation console is provided on the simulated train, and real radios are used for communication between the simulated trains; ATP automatic driving operation mode and ATO automatic driving operation mode are set on the simulated trains.

[0008] In a specific embodiment, the virtual trains and the simulated trains receive ground instructions from the ground control laboratory through network cables or wireless networks.

[0009] In a specific embodiment, the real-time data of the train and its surrounding environment includes train position, train speed, line information and weather, and the line information includes real-time data of turnouts, signal lights, track circuits and ground sensors.

[0010] In a specific embodiment, the central coordination center is also used for task scheduling, data synchronization and experiment management.

[0011] In a specific embodiment, the data center laboratory is provided with a display large screen, and the display large screen is used to display the operation interfaces of the ground control laboratory and the vehicle control laboratory.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention provides a simulation environment close to the real scenario for testing and verifying the algorithms, control strategies and communication systems of virtual formation operation. By combining semi-physical simulation with physical devices and simulation models, the development cost is reduced, and at the same time, the accuracy and flexibility of testing are improved.

[0014] The present invention is directed to an operation control system for heavy-haul train groups. Based on the method of remote data linkage, a system experimental environment is constructed to build a semi-physical vehicle-ground system simulation test platform, which can support the integrated testing and system testing of the equipment and line operation of the train group operation control system, and can be used to support the testing of engineering projects. The entire remote linkage laboratory can support the scientific research and experiments of new algorithms and new products in the industry, and is also used for demonstration and training and testing for third parties. It can also operate on the various attributes and behaviors of the train according to the requirements and functions of each operation scenario.

[0015] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The present invention will be further described in detail below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 is a schematic diagram of an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following is a detailed description of the embodiments of the present invention. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] Embodiment 1

[0020] A test system for heavy-haul train group operation simulation provided by the present invention includes a data center laboratory, a ground control laboratory, an on-vehicle control laboratory and a central coordination center; the data center laboratory, the ground control laboratory and the on-vehicle control laboratory are network-connected through the central coordination center to form a real-time linkage test environment;

[0021] The on-vehicle control laboratory is provided with a vehicle simulation platform, and the vehicle simulation platform includes a number of virtual trains and at least two simulated trains;

[0022] The data center laboratory is used to collect real-time data of the train and its surrounding environment and transmit it to the ground control laboratory and the on-vehicle control laboratory;

[0023] The ground control laboratory is used to simulate ground dispatching and control, receive real-time data of the train and its surrounding environment from the data center laboratory, and issue ground instructions to the on-vehicle control laboratory for on-vehicle system simulation;

[0024] The on-vehicle control laboratory is used to simulate train operation, verify the response of the on-vehicle system to ground instructions and the cooperation between trains; receive real-time data of the train and its surrounding environment from the data center laboratory and ground instructions from the ground control laboratory to achieve dynamic simulation of the train.

[0025] Real ATP, ATO and radio are installed on the simulated train, and a simulation console is installed on the simulated train. Real radios are used for communication between simulated trains; ATP automatic driving operation mode and ATO automatic driving operation mode are set on all simulated trains.

[0026] The virtual train and the simulated train receive ground instructions from the ground control laboratory through network cables or wireless networks.

[0027] The real-time data of the train and its surrounding environment includes train position, train speed, line information and weather. The line information includes real-time data of turnouts, signal lights, track circuits and ground sensors.

[0028] The central coordination center is also used for task scheduling, data synchronization and experiment management. It realizes status monitoring and unified coordination of the three places.

[0029] The data center laboratory is equipped with a display screen, which is used to display the operation interfaces of the ground control laboratory and the on-vehicle control laboratory.

[0030] The on-vehicle simulation equipment in the present invention is mainly used to verify the collaborative working conditions of group devices such as on-vehicle ATP, ATO, and DSU, and multiple cars can form a group train operation through the on-vehicle integrated communication platform.

[0031] The group core devices installed on each simulated train include ATP, ATO, GCC, and radio, and all group core devices use physical devices.

[0032] Each simulated train with group core devices has the functions of developing and debugging devices such as ATP, ATO, GCC, and on-vehicle radio, and also reserves development interfaces on ATP, ATO, GCC, and on-vehicle radio according to the requirements of group operation.

[0033] Each simulated train with group core devices is connected to a physical simulation console. The console can be controlled by the driver to operate, and can also be automatically controlled by ground instructions. When the console is controlled by the driver, the simulation platform in the ground control laboratory will automatically uncouple the group train into independent simulated trains. When the console is automatically operated by devices such as on-vehicle ATP and ATO, the simulation platform in the ground control laboratory will combine the independent simulated locomotives into a group train.

[0034] The virtual locomotive has the functions of automatic operation and independent operation. When there is only a single virtual locomotive, the system only has a demonstration function. When there are simulated trains with group core equipment, the simulation platform in the ground control laboratory will incorporate the virtual locomotive into the group train.

[0035] All ground facilities, such as tracks, switches, ground sensors and other hardware, are all virtually completed on the computer.

[0036] Information such as ground track circuit signals is transmitted to the on-vehicle receiving device unit of the group simulation train through network cables or wireless networks. After receiving the signal, the on-vehicle receiving device controls the operation of the simulated train.

[0037] The ground control laboratory can receive the signals from the on-vehicle equipment through network cables or wireless networks, and can display information such as the current position and running speed of the train, and can display the position of the train on the computer.

[0038] The ground control laboratory can command the simulated train to pass through the switch and stop at the expected position through instructions.

[0039] The data center laboratory has the functions of data collection of various equipment in the heavy-haul train group operation control system, basic data collection, real-time recording of operation information, etc. It also has the function of remote dispatching, that is, it can remotely control the CTC, and has the function of remotely accessing and operating the interlocking control display interface. It also has the function of remotely operating the starting button of the driver's console to achieve remote operation of automatic driving. It also has the function of reproducing the display content of the ground control laboratory and the on-vehicle control laboratory on the local large screen. It also has the function of displaying the dispatching information of the test section.

[0040] The ground control laboratory: Simulates the ground dispatching and control center, formulates train operation plans and instructions. Analyzes the train operation status through simulation, and sends real-time control instructions to the on-vehicle system in the on-vehicle control laboratory. Verifies the reliability of ground control strategies and communication protocols. Has the functions related to ground equipment supporting multi-train group operation. Has the function of remotely controlling the on-vehicle related equipment in the on-vehicle control laboratory. Has the function of locally setting the on-vehicle equipment of the group simulation train. Has the function of receiving and processing the dispatching commands of the remote dispatching and control in the data center laboratory. Has the function of receiving remote interlocking control commands and outputting the interlocking control display interface to the remote data center laboratory and the on-vehicle control laboratory.

[0041] On-vehicle Control Laboratory: Simulate the on-vehicle control system of the train to test its response ability to ground instructions. Verify the dynamic behavior of the train under different working conditions, including acceleration, deceleration, formation and dissolution. Test the adaptability of the on-vehicle system to environmental and ground communication interruptions. Have on-vehicle related functions to support the operation of multiple train groups. Have the function of receiving and processing the train control commands of the remote control group train control ground laboratory. Have the function of receiving and processing the remote departure commands of the data center. Have the function of direct local communication between trains. Have the function of reproducing the display information of on-vehicle equipment DMI and other relevant information to the ground control laboratory and the data center laboratory. Have the function of remotely calling the cameras of the other two laboratories and displaying them on the large screen.

[0042] Data linkage, control linkage, time synchronization, and abnormal linkage have been realized among the data center laboratory, the ground control laboratory, and the on-vehicle control laboratory. The whole system ensures the efficient response of each scenario through precise time synchronization and a communication network with low latency and high reliability.

[0043] The data linkage includes:

[0044] Data transmission to the ground control laboratory: Real-time transmission of train operation status and environmental data for the use of the ground dispatching module. It includes data such as train position, train speed, line information, and weather.

[0045] Data transmission to the on-vehicle control laboratory: Transmit the collected physical and environmental data to the on-vehicle control laboratory to support train simulation.

[0046] Data linkage between the ground control laboratory and the on-vehicle control laboratory. The ground control laboratory sends dispatching instructions (such as speed control, path selection) to the on-vehicle control laboratory. The on-vehicle control laboratory feeds back the train operation status (such as current speed, braking status) to the ground control laboratory.

[0047] The control linkage includes:

[0048] Ground control laboratory: Dispatch the on-vehicle system of the on-vehicle control laboratory for dynamic control based on the on-site data of the data center laboratory.

[0049] Feedback from the on-vehicle control laboratory: Send the simulation results (such as train response time, operation status) to the ground control laboratory to verify the control effect.

[0050] For the time synchronization, the precise time protocol is adopted to unify the time of the three places, ensuring that data and instructions run along the unified time axis.

[0051] The abnormal linkage includes fault testing and emergency response. Fault testing: The data center laboratory triggers abnormal scenarios (such as signal interruption, emergency stop event), the ground control laboratory adjusts the scheduling strategy in real time, and the vehicle control laboratory verifies the train's response. Emergency response: The ground control laboratory and the vehicle control laboratory cooperate to complete the emergency braking test to ensure the train's safety.

[0052] Have stable network conditions, including low latency, high bandwidth and high reliability. Low latency: Ensure that the cross-region communication latency between laboratories is within 10 ms. High bandwidth: Support real-time transmission of large-scale data. High reliability: Avoid experiment failure caused by communication interruption.

[0053] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions and substitutions can still be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. An experimental system for the simulation of the operation of heavy-haul train groups, characterized in that, It includes a data center laboratory, a ground control laboratory, a vehicle control laboratory and a central coordination center; the data center laboratory, the ground control laboratory and the vehicle control laboratory are network-connected through the central coordination center to form a real-time linked test environment; The vehicle control laboratory is equipped with a vehicle simulation platform, and the vehicle simulation platform includes several virtual trains and at least two simulated trains; the data center laboratory is used to collect real-time data of the train and its surrounding environment and transmit it to the ground control laboratory and the vehicle control laboratory; the ground control laboratory is used to simulate ground dispatching and control, receive the real-time data of the train and its surrounding environment from the data center laboratory, and send ground instructions to the vehicle control laboratory for the simulation of the vehicle system; the vehicle control laboratory is used to simulate train operation, verify the response of the vehicle system to ground instructions and the cooperation between trains; receive the real-time data of the train and its surrounding environment from the data center laboratory and the ground instructions from the ground control laboratory to realize the dynamic simulation of the train.

2. The test system for the simulation of the operation of a heavy-haul train group according to claim 1, characterized in that Real ATP, ATO and radios are installed on the simulated trains, a simulation console is installed on the simulated trains, and the simulated trains communicate with each other using real radios; ATP automatic driving operation mode and ATO automatic driving operation mode are set on the simulated trains.

3. The test system for the simulation of the operation of a heavy-haul train group according to claim 1, characterized in that, The virtual trains and the simulated trains receive ground instructions from the ground control laboratory through network cables or wireless networks.

4. The test system for simulating the operation of a heavy-haul train group according to claim 1, characterized in that The real-time data of the train and its surrounding environment includes train position, train speed, line information and weather, and the line information includes real-time data of turnouts, signal lights, track circuits and ground sensors.

5. The test system for overloaded train group operation simulation according to claim 1, characterized in that The central coordination center is also used for task scheduling, data synchronization and experiment management.

6. The test system for overloaded train group operation simulation according to claim 1, characterized in that The data center laboratory is equipped with a large display screen, which is used to display the operation interfaces of the ground control laboratory and the vehicle control laboratory.

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