Simulation ATP vehicle-mounted equipment based on real radio station

Abstract

The invention discloses simulation ATP vehicle-mounted equipment based on a real radio station. The simulation ATP vehicle-mounted equipment mainly comprises a main control unit, a display unit, a communication unit and a vehicle-mounted simulation environment, wherein the main control unit realizes calculation and logic control functions, the display unit realizes a man-machine interface interaction function, the communication unit realizes a data transmission function, and the vehicle-mounted simulation environment realizes a vehicle-mounted equipment external environment simulation function. The application logic of the main control unit of the simulation ATP vehicle-mounted equipment is kept consistent with that of real ATP vehicle-mounted equipment, and the real ATP can be effectively replaced in a line pull-through test and a scene test of a high-speed rail train control system simulation laboratory; meanwhile, the cost of purchasing real vehicle-mounted equipment is saved, the requirement of a laboratory for the number of the vehicle-mounted equipment is met, and the efficiency, depth and breadth of system testing are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of high-speed railway train operation control system testing, and in particular to a simulated ATP on-board device based on a real radio station. Background Art

[0002] As the core of the high-speed railway system, the train operation control system is one of the key technical equipment to ensure train driving safety and improve train operation efficiency. The joint commissioning and testing of the train control signal system before the opening of my country's newly built high-speed railway lines mainly focuses on ground equipment and line basic data, taking into account the compatibility of different ATP (automatic train protection system) on-board equipment models. Any failure of the system's safety-related functions may cause immeasurable catastrophic consequences. Before it is put into use, it must be subjected to rigorous system testing to ensure the integrity and correctness of the train control system data and functions. With the increasing complexity of the system structure, interaction relationship and functional logic, the testing of the train control system has become more difficult. Relying solely on on-site testing to verify the correctness of the system functions not only takes a lot of time, but also requires a lot of manpower, material and financial resources.

[0003] Limited by time, cost, on-site operation scenarios and demand conditions, it is difficult to discover defects and safety hazards in the signal system through on-site dynamic testing. Using simulation technology to test and verify the high-speed rail train control system is a common verification method at home and abroad. At present, the comprehensive simulation test platform for the train control system of high-speed railways mainly targets the full scene and all elements of the train control system under real vehicles, real lines and real scenes, focusing on the testing of ground equipment and line basic data, as well as the interconnection and interoperability testing of ATP on-board equipment.

[0004] As the core device of the high-speed rail train control system, the ATP on-board equipment mainly completes the real-time overspeed protection function of the train running speed. The functional structure of the on-board equipment is complex. At present, the platform basically uses various models of real ATP equipment to realize the function of system testing of the tested line. However, the platform is limited by the number of ATP on-board equipment and the need for multiple sets of ATP on-board equipment to cooperate in multi-vehicle test scenarios. It is impossible to further improve the test efficiency of the platform, and it is difficult to build special scenarios and ensure the adequacy of the test. How to develop simulated ATP on-board equipment based on meeting the corresponding test criteria, through in-depth understanding of ATP on-board equipment, using advanced simulation technology, reduce test costs, improve test efficiency and coverage, and provide platform support for high-speed railway train control system engineering testing, ground equipment system testing, and on-board equipment research and development is an urgent problem to be solved in the train control system testing work. Summary of the invention

[0005] The purpose of the present invention is to provide a simulated ATP vehicle-mounted device based on a real radio station, to achieve functional replacement of the real ATP device in the laboratory train control system engineering simulation test, to improve the laboratory simulation test technology level, and to improve the test platform efficiency.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A simulated ATP vehicle-mounted device based on a real radio station comprises: a main control unit, a display unit, a communication unit and a vehicle-mounted simulation environment; wherein:

[0008] The vehicle-mounted simulation environment is used to simulate driver operations, build a vehicle braking model based on vehicle parameters, and interact with a ground simulation platform; generate train interface output information based on the simulated driver operations, generate track circuit information and transponder information based on information obtained through interaction with the ground simulation platform, and generate train speed information based on the vehicle braking model; and obtain train interface input information from a main control unit;

[0009] The main control unit is used to simulate the train control on-board equipment according to various information generated by the on-board simulation environment, transmit train interface input information to the on-board simulation environment, transmit various information during the working process to the display unit, and realize message interaction with external devices through the communication unit;

[0010] The communication unit is provided with a real radio station for realizing message interaction between the main control unit and external devices;

[0011] The display unit is used to realize human-machine interface interaction and display information transmitted by the main control unit.

[0012] It can be seen from the technical solution provided by the present invention that the application logic of the main control unit of the simulated ATP on-board equipment is consistent with that of the real ATP on-board equipment, and can effectively replace the real ATP in the line pull-through test and scenario test of the high-speed railway train control system simulation laboratory; at the same time, it saves the cost of purchasing real on-board equipment, meets the laboratory's demand for the number of on-board equipment, and effectively improves the efficiency, depth and breadth of system testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0014] Figure 1A schematic diagram of a simulated ATP vehicle-mounted device based on a real radio station provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0016] First, the terms that may be used in this article are explained as follows:

[0017] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y means both “X” or “Y” and “X and Y”.

[0018] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0019] The term "consisting of..." means excluding any technical feature elements not explicitly listed. If this term is used in a claim, it will make the claim closed, so that it does not contain technical feature elements other than the technical feature elements explicitly listed, except for the conventional impurities related to them. If this term only appears in a clause of a claim, it only limits the elements explicitly listed in the clause, and the elements recorded in other clauses are not excluded from the overall claim.

[0020] Unless otherwise specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0021] The following is a detailed description of a simulated ATP vehicle-mounted device based on a real radio provided by the present invention. The contents not described in detail in the embodiments of the present invention belong to the prior art known to professionals in the field. If no specific conditions are specified in the embodiments of the present invention, the conventional conditions in the field or the conditions recommended by the manufacturer are followed. The instruments used in the embodiments of the present invention, if the manufacturer is not specified, are all conventional products that can be purchased commercially.

[0022] like Figure 1 As shown, it is a schematic diagram of a simulated ATP vehicle-mounted device based on a real radio station provided by an embodiment of the present invention, which mainly includes: a main control unit, a display unit, a communication unit and a vehicle-mounted simulation environment.

[0023] (1) The on-board simulation environment is used to simulate driver operations, build a vehicle braking model based on vehicle parameters, and interact with a ground simulation platform; generate train interface output information based on simulated driver operations, generate track circuit information and transponder information based on information obtained from interacting with the ground simulation platform, generate train speed information based on the vehicle braking model; and obtain train interface input information from a main control unit.

[0024] In one embodiment, the vehicle-mounted simulation environment mainly includes: a main control module, a scene information processing module, an interface display module and an information processing module.

[0025] (1.1) The interface display module is used to provide an operable application interface, receive simulated driver operations, transmit them to the main control module, and display the train interface input information processed by the information processing module.

[0026] (1.2) The scene information processing module is used to forward the train operation status information from the main control module to the ground simulation platform, and transmit the feedback information of the ground simulation platform to the main control module.

[0027] (1.3) The main control module is used to construct a vehicle braking model based on vehicle parameters and generate train speed information; to generate train interface output information according to simulated driver operations, and to generate track circuit information and transponder information according to information obtained by interacting with a ground simulation platform; and to receive and display processed train interface input information transmitted by an information processing module.

[0028] (1.4) An information processing module is used to process various types of information generated by the main control module and transmit it to the main control unit, and to process the train interface input information from the main control unit and transmit it to the main control module.

[0029] In one embodiment, the information generating module includes: a track circuit processing module, a transponder processing module, a train interface processing module and a speed control module; the track circuit processing module is used to process the track circuit information, generate carrier frequency and low-frequency data, and transmit them to the main control unit according to the set communication protocol; the transponder processing module is used to process the transponder information, generate 830-bit transponder message text, and transmit it to the main control unit according to the set communication protocol; the train interface processing module is used to process the train interface output information, such as the driving console activation signal, sleep signal, brake feedback signal, etc., and transmit it to the main control unit according to the set communication protocol, as well as the train interface input information of the future main control unit, such as over-phase command, normal braking command, emergency braking command, etc., parse the information according to the set communication protocol, and transmit it to the main control module; the speed control module is used to process the train speed information and transmit it to the main control unit according to the set communication protocol.

[0030] (2) The main control unit is used to simulate the train control on-board equipment according to various information generated by the on-board simulation environment, the human-computer interaction information from the display unit, and the wireless message from the communication unit, that is, after receiving the processed track circuit information output by the track circuit processing module, the idle state of the track block ahead of the train is judged according to the carrier frequency data and the low-frequency data. After receiving the processed transponder information output by the transponder processing module, the 830-bit transponder plain text is parsed according to the transponder message format to obtain the necessary line data such as the slope information, static speed limit information, temporary speed limit information, and over-phase information, grade conversion information, and wireless call information. After receiving the processed train interface output information output by the train interface processing module, it is judged whether the on-board equipment can start the startup process, whether it needs to sleep, whether the braking state is good, etc. After receiving the processed train speed information output by the speed control module, the current speed, acceleration, travel distance and other data of the train are generated. After receiving the configuration parameter information in the human-computer interaction information, the parameters such as the train number, the relevant values ​​of the braking model, and the wheel diameter value are updated. After receiving the wireless message, the data packet is parsed according to the message format to obtain information such as driving permission and emergency stop. According to the train operation status and line conditions, it is determined whether it is necessary to output the train interface input information such as braking and over-phase command to the on-board simulation environment; and various information during the working process is transmitted to the display unit, such as train speed, speed limit information of the line ahead, track circuit code, text information to prompt the driver, etc.

[0031] And message interaction with external devices is achieved through the communication unit.

[0032] In one embodiment, the main control unit includes: a core control module, a basic function module, a wireless transmission module and a communication interface module which are connected in sequence.

[0033] (2.1) The core control module is used to simulate the train control on-board equipment according to various types of information generated by the on-board simulation environment, that is, to read the track circuit carrier frequency, track circuit low-frequency code, transponder message content, driver's console activation signal, sleep signal, brake feedback signal, train speed, acceleration, position and other information required for train operation from the basic function module to control the normal operation of the train. Output the over-phase command, normal braking, emergency braking and other train interface input information to the basic function module to ensure the safety of train operation. And output various information during the working process to the basic function module.

[0034] (2.2) The basic functional module is used to receive various types of information from the on-board simulation environment and transmit it to the on-board simulation environment after processing, that is, the track circuit carrier frequency and low-frequency information, transponder plain text information, driver's console activation signal, sleep signal, brake feedback signal, train speed and other data are re-encoded and packaged according to the internal communication protocol with the core control module, and transmitted to the core control module. Receive the train interface input information from the core control module and transmit it to the on-board simulation environment after processing, that is: receive the train interface input information such as over-phase and braking output by the core control module, re-encode it according to the communication protocol between the on-board simulation environment and transmit it to the on-board simulation environment. Receive various information from the core control module during the working process and transmit it to the display unit after processing. And interact with the wireless transmission module Security layer primitive data, which includes RBC message plain text and security layer connection control commands.

[0035] (2.3) The wireless transmission module is used to exchange transport layer primitive data with the communication interface module, which includes security layer data and transport layer connection control commands.

[0036] (2.4) The communication interface module is used to communicate with the communication unit and perform radio station management, and to exchange network layer data, which includes transport layer data and radio station control information.

[0037] (3) The communication unit is provided with a real radio station for realizing message interaction between the main control unit and external devices.

[0038] In one embodiment, the communication unit includes: a power supply module, a radio module and a recording module.

[0039] (3.1) The power supply module is used to convert the external input power to power the radio module and the recording module, and to exchange network layer data and radio control information with the main control unit.

[0040] (3.2) The radio module is a real radio that implements the wireless communication function of GSM-R.

[0041] (3.3) The recording module is used to record the diagnostic record information sent by the radio module.

[0042] (4) The display unit is used to realize human-machine interface interaction and display information transmitted by the main control unit.

[0043] In one embodiment, the display unit includes: a user interface layer, a data processing layer, a data conversion layer and a communication protocol layer.

[0044] (4.1) The user interface layer is used to provide a human-computer interface, realize human-computer interface interaction, and display processed and converted information.

[0045] (4.2) The communication protocol layer is used to realize information transmission with the main control unit.

[0046] (4.3) The data processing layer and the data conversion layer are used to realize information processing and conversion.

[0047] In the embodiment of the present invention, the vehicle-mounted simulation environment in the vehicle-mounted simulation environment and the user interface layer in the display unit are independent software, and each displays relevant information obtained during the working process.

[0048] In order to more clearly demonstrate the technical solution and technical effects provided by the present invention, the simulated ATP vehicle-mounted device provided by the embodiment of the present invention is described in detail with reference to a specific embodiment below.

[0049] like Figure 1 As shown, the simulated ATP vehicle-mounted device provided by the embodiment of the present invention mainly includes four parts: a main control unit, a display unit, a communication unit and a vehicle-mounted simulation environment. The main control unit realizes the calculation and logic control function, the display unit realizes the human-machine interface interaction function, the communication unit realizes the data transmission function, and the vehicle-mounted simulation environment realizes the external environment simulation function of the vehicle-mounted device.

[0050] 1. Introduction to the principles of each part.

[0051] 1. Main control unit.

[0052] The main control unit mainly includes: core control module, wireless transmission module, communication interface module and basic function module.

[0053] (1) Core control module. This module is the core module of the simulated on-board equipment, realizing the core logic control and safety control functions of the simulated on-board equipment. It is responsible for realizing the basic functions of the CTCS-3 level train control on-board equipment, such as speed monitoring, mode conversion, level conversion, session management, train positioning, etc.

[0054] (2) Wireless transmission module: This module implements functions such as security layer communication with ground equipment and wireless communication function interface specification implementation.

[0055] (3) Communication interface module. This module implements the external communication interface of the wireless transmission module (RS422 serial port control and communication) and performs physical layer control on the radio module (including communication output enable and disable, connection and communication command sending and receiving, control mode and data mode switching operations, etc.).

[0056] (4) Basic function module. This module implements the external communication interface (library functions and networks) of the core control module, is responsible for transmitting key data such as the line and vehicle interface required for train operation from the on-board simulation environment to the core control module, is responsible for transmitting human-computer interaction information with the display unit, and realizes tasks scheduling, diagnostic records, speed and distance measurement operations, parameter configuration, providing monitoring information, and providing basic operations.

[0057] 2. Display unit.

[0058] The display unit mainly includes: user interface layer, data processing layer, data conversion layer and communication protocol layer.

[0059] (1) The user interface layer is responsible for multiple functions at the same time, such as graphics drawing, text display and audio playback. It provides the train driver with the train operation status required by the train through audio, text and other information in a timely and clear manner, and provides corresponding function buttons to help them perform corresponding control operations, such as input, selection and response confirmation.

[0060] (2) The data processing layer is mainly responsible for the logical processing of matching business data with the front-end display interface. It can convert application data into audio, text, graphics, icons and other information. It also sets up detailed interface division areas according to the human-computer interface display specifications, and derives application data and graphic coordinate conversion formulas.

[0061] (3) Data conversion layer, which implements the unpacking and parsing of received data and the packaging logic of sent data. Data parsing can unpack the data received from the bottom-level port and generate corresponding business application data, which will then be used by various functions such as display in the system. The function of data organization is a reverse process of the former, which can convert application data into the required message.

[0062] (4) Communication protocol layer: Through the underlying communication protocol, the constraints and specifications on the receiving and sending of data information between the main control unit and the communication unit are implemented.

[0063] 3. Communication unit.

[0064] The communication unit mainly includes: power supply module, radio module and recording module.

[0065] (1) The power supply module realizes the power conversion function from 110V power supply to the power required by the MT5 model radio module. It also has the functions of input power filtering, top power and output power monitoring. It also realizes the signal level conversion function from the back-outgoing transistor-transistor logic level signal of the radio module to the front-outgoing RS422 level signal.

[0066] (2) The radio module realizes the wireless communication function of GSM-R.

[0067] (3) The recording module implements the transistor-transistor logic serial port logging function of the MT5 model radio module.

[0068] 4. In-vehicle simulation environment.

[0069] The on-board simulation environment mainly includes: main control module, train interface processing module, speed control module, track circuit processing module, transponder processing module, scene information processing module and interface display module.

[0070] (1) The main control module communicates with the scene information processing module, the track circuit processing module and the transponder processing module. Based on the line scene data (including the starting train position, the train running direction, the track circuit information and transponder information in front of the train, etc.) obtained by the scene information processing module from the ground simulation platform, the module simulates the vehicle movement, calculates the train position in real time according to the simulated speed of the vehicle, and determines whether the track circuit information and the transponder information have changed in combination with the position information in the line data. If they have changed, the track circuit information and the transponder information are sent to the track circuit processing module and the transponder processing module in real time; communicates with the interface display module, and outputs the vehicle interface signals such as the activation, sleep, traction brake handle, and direction handle of the driving console to the train interface processing module in real time according to the driver's operation; communicates with the train interface processing module, receives the train interface input signal output by the main control unit in real time, and displays the over-phase information and braking information through the interface display module; communicates with the speed control module, and constructs a vehicle braking model according to the vehicle braking parameters (pre-written in the relevant code of the vehicle simulation environment), which is used to generate the train speed signal in real time according to the braking status during the control process.

[0071] (2) The train interface processing module re-encodes and packages the train interface output signals such as the driver's console activation, sleep, traction brake handle, and direction handle according to the interface protocol, and sends them to the main control unit. It decodes and unpacks the train interface input signals such as over-phase and braking from the main control unit and sends them to the main control module of the on-board simulation environment.

[0072] (3) The speed control module re-encodes and packages the speed information according to the interface protocol and sends the speed value to the main control unit.

[0073] (4) Track circuit processing module re-encodes and packages the track circuit information according to the interface protocol, and sends the carrier frequency and low-frequency code to the main control unit.

[0074] (5) The transponder processing module re-encodes and packages the transponder information according to the interface protocol and sends the transponder plain text to the main control unit.

[0075] (6) Scenario information processing module, which sends track circuit information (low frequency and carrier frequency) and transponder messages to the main control module in real time according to the test scenario.

[0076] (7) Interface display module, which provides a simple and easy-to-use operation interface, simulates the driver's operation of the driving console, and transmits the vehicle-side interface information to the main control module in real time.

[0077] 2. The information interaction process of each part.

[0078] Step 1: The tester interacts with the interface display module of the vehicle simulation environment.

[0079] The interface display module of the vehicle simulation environment provides an operable application interface to the tester. The tester operates the relevant controls in the interface to realize functions such as test start / stop, simulated ATP start / stop, and driving console activation / shutdown.

[0080] Step 2: The interface display module of the vehicle-mounted simulation environment interacts with its main control module.

[0081] The interface display module of the vehicle-mounted simulation environment sends the status information of the application program interface control to the main control module through the internal interface of the software.

[0082] Step 3: The main control module of the vehicle simulation environment exchanges information with its scene information processing module.

[0083] The main control module of the on-board simulation environment sends the test start / stop status information, train operation status information, etc. to the scene information processing module through the internal software interface. The scene information processing module of the on-board simulation environment sends track circuit information and balise information to the main control module through the internal software interface.

[0084] Step 4: The scene information processing module of the vehicle-mounted simulation environment exchanges information with the ground simulation platform.

[0085] The scene information processing module of the on-board simulation environment sends the train running status information to the ground simulation platform through the network interface and waits for information from the ground simulation platform. Based on the train running status information, the ground simulation platform sends the track circuit information and balise information to the scene information processing module of the on-board simulation environment through the network interface.

[0086] Step 5: The main control module of the vehicle-mounted simulation environment exchanges information with its train interface processing module.

[0087] The main control module of the vehicle simulation environment sends the vehicle's train interface output signal to the train interface processing module through the software internal interface. The train interface processing module sends the vehicle's train interface input signal from the main control unit to the main control module through the software internal interface.

[0088] Step 6: The main control module of the vehicle simulation environment exchanges information with its speed control module.

[0089] The main control module of the vehicle simulation environment sends the vehicle speed signal to the speed control module through the internal software interface.

[0090] Step 7: The main control module of the vehicle-mounted simulation environment exchanges information with its track circuit processing module.

[0091] The main control module of the vehicle-mounted simulation environment sends the track circuit information to the track circuit processing module through the internal interface of the software.

[0092] Step 8: The main control module of the vehicle-mounted simulation environment exchanges information with its transponder processing module.

[0093] The main control module of the vehicle simulation environment sends the transponder information to the transponder processing module through the internal interface of the software.

[0094] Step 9: The train interface processing module of the on-board simulation environment exchanges information with the basic function module of the main control unit.

[0095] The train interface processing module of the vehicle-mounted simulation environment sends the processed train interface output signal to the basic function module of the main control unit through the software library function interface. The basic function module of the main control unit sends the vehicle's train interface input signal to the train interface processing module of the vehicle-mounted simulation environment through the software library function interface.

[0096] Step 10: The speed control module of the vehicle simulation environment exchanges information with the basic function module of the main control unit.

[0097] The speed control module of the vehicle simulation environment sends the processed vehicle speed signal to the basic function module of the main control unit through the software library function interface.

[0098] Step 11: The track circuit processing module of the vehicle-mounted simulation environment exchanges information with the basic function module of the main control unit.

[0099] The track circuit processing module of the vehicle-mounted simulation environment sends the processed track circuit information to the basic function module of the main control unit through the software library function interface.

[0100] Step 12: The transponder processing module of the vehicle-mounted simulation environment exchanges information with the basic function module of the main control unit.

[0101] The transponder processing module of the vehicle simulation environment sends the processed transponder information to the basic function module of the main control unit through the software library function interface.

[0102] Step 13: The basic function module of the main control unit exchanges information with its core control module.

[0103] The basic function module of the main control unit sends the processed track circuit information, balise information, speed and distance measurement information, vehicle train interface output information, configuration parameter information, wireless messages, etc. to the core control module through the internal software interface. After receiving the processed track circuit information, the core control module determines the idle state of the track block ahead of the train based on the carrier frequency data and low-frequency data therein. After receiving the processed balise information, the 830-bit balise plain text is parsed according to the balise message format to obtain the necessary line data such as slope information, static speed limit information, temporary speed limit information, as well as functional data such as over-phase information, grade conversion information, and wireless call information. After receiving the processed train interface output information, it is determined whether the on-board equipment can start the startup process, whether it needs to sleep, whether the braking state is good (normal), etc. After receiving the processed train speed information, the current speed and position of the train are determined. After receiving the configuration parameter information in the human-computer interaction information, the parameters such as the train number, brake model related values, and wheel diameter value are updated. After receiving the wireless message, the data packet is parsed according to the message format to obtain information such as driving permission and emergency stop. All the above information is used for the on-board equipment to automatically protect the normal operation of the train. The core control module sends vehicle train interface input information such as over-phase command and brake command to the basic function module through the internal interface of the software to realize automatic train protection. Send diagnostic record information to the basic function module, and then the basic function module forms a local log file for testing and R&D personnel to analyze and locate equipment faults. Send dynamic monitoring information to the basic function module, and then the basic function module sends it to the designated network port for professional monitoring software to monitor the operating status of the main control unit of the simulated on-board equipment in real time.

[0104] Step 14: The wireless transmission module of the main control unit exchanges information with the basic function module.

[0105] The wireless transmission module of the main control unit exchanges security layer primitive data with the basic function module through the internal software interface.

[0106] Step 15: The communication interface module of the main control unit exchanges information with the wireless transmission module.

[0107] The communication interface module of the main control unit exchanges transmission layer primitive data with the wireless transmission module through the software internal interface.

[0108] Step 16: The power supply module of the communication unit exchanges information with the communication interface module of the main control unit.

[0109] The power supply module of the communication unit exchanges network layer data and radio control commands with the communication interface module of the main control unit through the RS422 serial port.

[0110] Step 17: The radio module of the communication unit exchanges information with its power supply module.

[0111] The radio module of the communication unit exchanges network layer data and radio control command feedback with its power supply module through the backplane connection.

[0112] Step 18: The radio module of the communication unit exchanges information with the RBC.

[0113] The radio module of the communication unit exchanges wireless messages with the RBC via GSM-R radio.

[0114] Step 19: The radio module of the communication unit exchanges information with its recording module.

[0115] The radio module of the communication unit sends diagnostic record information to the record module through the backplane connection.

[0116] Step 20: Exchange information with the basic function module of the main control unit.

[0117] The display unit exchanges DMI messages with the basic function module of the main control unit through the network interface.

[0118] Step 21: The tester exchanges information with the display unit.

[0119] The display unit provides an operable application interface. The displayed content is consistent with the DMI display content. The tester operates the relevant controls to realize the functions related to the DMI buttons.

[0120] In summary, the main control unit of the simulated ATP on-board equipment obtains the vehicle signals and line data required for driving from the ground simulation platform through the on-board simulation environment, obtains the driving permission and safety control commands required for driving from the ground central equipment through the communication unit, and provides the test personnel with real-time dynamic images consistent with the real DMI through the display unit.

[0121] The above scheme of the present invention mainly has the following beneficial effects: (1) The main control unit of the simulated ATP vehicle-mounted device is pure software, but it is consistent with the software function of the security computer in the real ATP vehicle-mounted device and has strong substitutability; (2) Most functions of the simulated ATP vehicle-mounted device are implemented by pure software, and the procurement cost is low; (3) The interface between the simulated ATP vehicle-mounted device and the ground test platform is a network interface, which can be flexibly expanded and has the ability of fully automatic testing.

[0122] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A simulated ATP vehicle-mounted device based on a real radio station, It is characterized in that include: Main control unit, display unit, communication unit and vehicle-mounted simulation environment; wherein: The vehicle-mounted simulation environment is used to simulate driver operations, build a vehicle braking model based on vehicle parameters, and interact with a ground simulation platform; generate train interface output information based on the simulated driver operations, generate track circuit information and transponder information based on information obtained through interaction with the ground simulation platform, and generate train speed information based on the vehicle braking model; and obtain train interface input information from a main control unit; The main control unit is used to simulate the train control on-board equipment according to various information generated by the on-board simulation environment, transmit the train interface input information to the on-board simulation environment, transmit various information during the working process to the display unit, and realize message interaction with external devices through the communication unit; The communication unit is provided with a real radio station for realizing message interaction between the main control unit and external devices; The display unit is used to realize human-machine interface interaction and display information transmitted by the main control unit.

2. According to claim 1, a simulated ATP vehicle-mounted device based on a real radio station, It is characterized in that The vehicle-mounted simulation environment includes: a main control module, a scene information processing module, an interface display module and an information processing module; The interface display module is used to provide an operable application program interface, receive simulated driver operations, and transmit them to the main control module, as well as display the train interface input information processed by the information processing module; The scene information processing module is used to forward the train running status information from the main control module to the ground simulation platform, and transmit the feedback information of the ground simulation platform to the main control module; The main control module is used to construct a vehicle braking model based on vehicle parameters and generate train speed information; to generate train interface output information according to simulated driver operations, and to generate track circuit information and transponder information according to information obtained through interaction with a ground simulation platform; and to receive and display processed train interface input information transmitted by the information processing module; The information processing module is used to process various types of information generated by the main control module and transmit it to the main control unit, and to process the train interface input information from the main control unit and transmit it to the main control module.

3. The simulated ATP vehicle-mounted device based on a real radio station according to claim 2, It is characterized in that The main control module is used to construct a vehicle braking model based on vehicle parameters and generate train speed information; to generate train interface output information according to simulated driver operations, and to generate track circuit information and transponder information according to information obtained through interaction with a ground simulation platform; Also used to receive and display the processed train interface input information transmitted by the information processing module, including: The main control module communicates with the scene information processing module, the track circuit processing module and the transponder processing module, simulates vehicle movement according to the line scene data obtained from the ground simulation platform by the scene information processing module, calculates the train position in real time according to the speed of the simulated vehicle movement, and determines whether the track circuit information and the transponder information have changed in combination with the position information in the line data. If changed, the track circuit information and the transponder information are sent to the track circuit processing module and the transponder processing module in real time; communicates with the interface display module, outputs the vehicle interface signal to the train interface processing module in real time according to the driver's operation; communicates with the train interface processing module, receives the train interface input signal output by the main control unit in real time, and displays it through the interface display module; communicates with the speed control module, constructs a vehicle braking model according to the vehicle braking parameters, and is used to generate a train speed signal in real time according to the braking state during the control process.

4. The ATP vehicle-mounted device based on a real radio station according to claim 2, It is characterized in that The information generation module includes: a track circuit processing module, a transponder processing module, a train interface processing module and a speed control module; A track circuit processing module, used for processing track circuit information and transmitting it to a main control unit; A transponder processing module, used for processing transponder information and transmitting it to the main control unit; The train interface processing module is used to process the train interface output information and transmit it to the main control unit, and to process the train interface input information from the main control unit and transmit it to the main control module; The speed control module is used to process the train speed information and transmit it to the main control unit.

5. The simulated ATP vehicle-mounted device based on a real radio station according to claim 1, It is characterized in that The main control unit comprises: a core control module, a basic function module, a wireless transmission module and a communication interface module connected in sequence; The core control module is used to simulate the train control on-board equipment according to various information generated by the on-board simulation environment, the human-computer interaction information from the display unit, and the wireless message from the communication unit, and to determine whether to output the train interface input information to the on-board simulation environment according to the train running status and line conditions, and to output various information during the working process to the basic function module; The basic function module is used to receive various types of information from the vehicle-mounted simulation environment and transmit it to the vehicle-mounted simulation environment after processing, receive the train interface input information output by the core control module and transmit it to the vehicle-mounted simulation environment after processing, receive various information from the working process of the core control module and transmit it to the display unit after processing; and exchange security layer primitive data with the wireless transmission module; The wireless transmission module is used to exchange transmission layer primitive data with the communication interface module; The communication interface module is used to communicate with the communication unit and perform radio station management.

6. The simulated ATP vehicle-mounted device based on a real radio station according to claim 5, It is characterized in that The core control module is used to simulate the train control vehicle equipment according to various types of information generated by the vehicle simulation environment, including: After receiving the processed track circuit information, the core control module determines the idle state of the track ahead of the train based on the carrier frequency data and low-frequency data therein; after receiving the processed transponder information, it parses the transponder plain text according to the transponder message format to obtain the line data necessary for train operation and related functional data; after receiving the processed train interface output information, it determines whether the on-board equipment has started the startup process, whether it needs to sleep, and whether the braking status is normal; after receiving the processed speed and distance measurement information, it determines the current speed and position of the train; after receiving the configuration parameter information in the human-computer interaction information, it updates the relevant parameters; after receiving the wireless message, it parses the data packet according to the message format to obtain the driving permit and emergency stop.

7. A simulated ATP vehicle-mounted device based on a real radio station according to claim 5 or 6, It is characterized in that Also includes: The core control module sends diagnostic record information to the basic function module, which then forms a local log file for equipment fault analysis and location; Dynamic monitoring information is sent to the basic function module, which then sends it to the designated network port for real-time monitoring of the operating status of the main control unit of the simulated vehicle-mounted equipment.

8. The ATP vehicle-mounted device based on a real radio station according to claim 1, It is characterized in that The communication unit includes: a power supply module, a radio module and a recording module; The power supply module is used to convert the external input power to supply power to the radio module and the recording module, and to exchange network layer data and radio control information with the main control unit; The radio module is a real radio, realizing the wireless communication function of GSM-R; The recording module is used to record the diagnostic record information sent by the radio module.

9. The ATP vehicle-mounted device based on a real radio station according to claim 1, It is characterized in that The display unit includes: a user interface layer, a data processing layer, a data conversion layer and a communication protocol layer; The user interface layer is used to provide a human-machine interface, realize human-machine interface interaction, and display processed and converted information; The communication protocol layer is used to realize information transmission with the main control unit; The data processing layer and the data conversion layer are used to realize information processing and conversion.

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