A kind of EMU auxiliary driving system

Abstract

The present application discloses an EMU assisted driving system, which relates to the technical field of EMUs, including a board mounting frame, an anti-seismic strip installed on the top of the board mounting frame and / or the bottom of the board mounting frame, a backplane, and a digital input board, a digital output board, a switching board, a central processing board, a communication board, an assisted driving calculation board, a data recording board, and a power board group arranged on the backplane, wherein each of the above-mentioned boards includes a first mounting hole, and the board mounting bracket includes a second mounting hole. Each board is fixed to the board mounting frame by a fastener, and the backplane includes a backplane bus and a backplane connector connected to each board. The present application adopts a modular design to integrate the entire EMU assisted driving system into the board mounting frame in the form of a board, thereby solving the problem of low integration of the EMU assisted driving system existing in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of EMUs, and in particular to an EMU auxiliary driving system. Background Art

[0002] The EMU auxiliary driving system is an important part of the EMU. The system plays an important role in improving driving safety, reducing the driver's workload, improving train operation efficiency, quickly handling faults, and ensuring train power supply.

[0003] However, the integration of EMU assisted driving systems in known technologies is not high. The specific reasons include: EMUs involve many key technologies and supporting technologies, which are complex and diverse, and it is very challenging to integrate these technologies into a unified EMU assisted driving system; reasonable interface relationships need to be determined between the various subsystems of the EMU, and the complexity of these interface relationships further increases the difficulty of integrating the EMU assisted driving system; EMUs have basic performance requirements in traction, braking, vehicle dynamics, train aerodynamics, comfort and safety. In order to meet these high-performance requirements, the assisted driving system needs to perform a lot of parameter optimization and process performance adjustment during integration, which is a lot of work. Summary of the invention

[0004] In view of the above problems, the present application provides an EMU assisted driving system to solve the problem of low integration of EMU assisted driving systems in the prior art. The specific solution is as follows:

[0005] The first aspect of the present application provides an EMU assisted driving system, comprising:

[0006] A board mounting frame, an anti-vibration strip, a back plate, and a digital input board, a digital output board, a switching board, a central processing board, a communication board, an auxiliary driving calculation board, a data recording board, and a power board group arranged on the back plate;

[0007] Each board on the backplane includes a first mounting hole, and the board mounting frame includes a second mounting hole corresponding to the first mounting hole; the second mounting hole has a shape including a slot or a circle, and each board is fixed to the board mounting frame by a fastener after being aligned with the first mounting hole and the second mounting hole; the board mounting frame is provided with a third mounting hole for fixing the board mounting frame at a target position;

[0008] The backplane includes a backplane bus and backplane connectors corresponding to each board, and the backplane connectors are connected to each board; the digital input board, digital output board, switch board, central processing board, communication board, auxiliary driving calculation board, and data recording board are all connected to the backplane bus;

[0009] The anti-vibration bars are installed on the top of the board mounting frame and / or on the bottom of the board mounting frame.

[0010] In one possible implementation, the various boards are arranged on the backplane in the order of digital input board, digital output board, switch board, central processing board, communication board, auxiliary driving computing board, data recording board and power board group.

[0011] In a possible implementation, mounting grooves are symmetrically arranged on the top of the board mounting frame and / or on the bottom of the board mounting frame.

[0012] The anti-vibration bar is installed on the installation slot, and the installation direction of the anti-vibration bar is the extension direction of each board and the arrangement direction of each board.

[0013] In a possible implementation, the backplane bus is a heterogeneous redundant structure, including a CAN bus and a PCIE bus.

[0014] In a possible implementation, the power board group is a redundant structure, including a first power board and a second power board.

[0015] In a possible implementation, the front panel of the data recording board includes a liquid crystal screen.

[0016] In a possible implementation, a fan is further included;

[0017] The fan is installed at the bottom of the board mounting frame and connected to the central processing board; the blowing direction of the fan is perpendicular to the arrangement direction of each board.

[0018] In one possible implementation, the driver assistance computing board includes a high-speed Ethernet interface;

[0019] The assisted driving computing board uses a high-speed Ethernet interface to connect to the CAN bus and PCIE bus, and communicates with the central processing board and data recording board through the CAN bus and PCIE bus.

[0020] In one possible implementation, the communication card is 3 inches high and 4 Hz wide;

[0021] The front panel of the communication board includes three Ethernet interfaces, two of which are Ethernet connection interfaces and one is a maintenance interface.

[0022] In a possible implementation, the digital quantity input board and the digital quantity output board both include a communication module, a main chip module, a power supply module and a front-end circuit module.

[0023] By means of the above technical scheme, the EMU assisted driving system provided by the present application includes a board mounting frame, an anti-seismic strip installed on the top of the board mounting frame and / or the bottom of the board mounting frame, a backplane, and a digital input board, a digital output board, a switching board, a central processing board, a communication board, an assisted driving calculation board, a data recording board, and a power board group arranged on the backplane, wherein each of the above boards includes a first mounting hole, the board mounting bracket includes a second mounting hole, each board is fixed to the board mounting frame by a fastener, and the backplane includes a backplane bus and a backplane connector connected to each board. The present application adopts a modular design to integrate the entire EMU assisted driving system into the board mounting frame in the form of a board, thereby solving the problem of low integration of the EMU assisted driving system existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0025] Figure 1 The structural diagram of the EMU assisted driving system provided for this application;

[0026] Figure 2 This is an example of a top view of the EMU assisted driving system provided in this application;

[0027] Figure 3 A side view example diagram of the EMU assisted driving system provided in this application;

[0028] Figure 4 A schematic diagram of the system architecture of the EMU assisted driving system provided for this application.

[0029] Reference numerals:

[0030] 1-board mounting frame; 2-back panel; 3-digital input board; 4-digital output board; 5-switch board; 6-central processing board; 7-communication board; 8-assisted driving computing board; 9-data recording board; 10-power board group; 11-first mounting hole; 12-third mounting hole; 13-second mounting hole; 14-anti-seismic strip. DETAILED DESCRIPTION

[0031] The following describes the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. The terms used in the implementation method section of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0032] The embodiments of the present application are described below in conjunction with the accompanying drawings. Those skilled in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0033] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and need not be used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is only to describe the distinction mode adopted by the objects of the same attributes when describing in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0034] The integration degree of the EMU assisted driving system in the known technology is not high. In order to solve the above problems, the present application provides an EMU assisted driving system, which adopts a modular design, divides the functions of the system into various functional boards, and integrates the entire system into a board mounting frame in the form of functional boards, thereby solving the problem of low integration degree of the EMU assisted driving system in the prior art.

[0035] Optional, see Figure 1 , the composition structure diagram of the EMU assisted driving system provided in this application.

[0036] like Figure 1 As shown, the EMU assisted driving system includes a board mounting frame 1, a back panel 2, and a digital quantity input board 3, a digital quantity output board 4, a switching board 5, a central processing board 6, a communication board 7, an assisted driving computing board 8, a data recording board 9 and a power board group 10 arranged on the back panel 2, as well as a first mounting hole 11 on each board, and a third mounting hole 12 for fixing the board mounting frame 1.

[0037] The board mounting frame 1 is mainly used to fix the above-mentioned boards, specifically, each board is fixed to the board mounting frame 1 by fasteners. The board mounting frame 1 includes a second mounting hole and Figure 1 The third mounting hole 12 is marked in FIG.

[0038] It should be noted that the second mounting hole corresponds to the first mounting hole 11 of each board and card, and can be a groove or a circle. It should also be noted that: Figure 1 The position of a first mounting hole 11 corresponding to a fastener is marked. Figure 1The mounting holes on each board that are fixed with fasteners are all first mounting holes 11, that is, the row of mounting holes on the upper side and the row of mounting holes on the lower side of the front panel of each board are all first mounting holes; the corresponding second mounting holes of the board mounting frame 1 can be slotted holes or circular holes at positions corresponding to the first mounting holes. In addition, the third mounting holes 12 located on both sides of the board mounting frame 1 are mainly used to fix the board mounting frame 1 at any desired installation position. It can also be understood that the entire EMU auxiliary driving system can be installed at any desired target location through the third mounting holes 12.

[0039] The backplane 2 includes a backplane bus and backplane connectors corresponding to each board. Each board is fixed to the backplane 2 through its corresponding backplane connector, and the digital input board 3, digital output board 4, switch board 5, central processing board 6, communication board 7, auxiliary driving calculation board 8, and data recording board 9 are all connected to the backplane bus.

[0040] It should be noted that the backplane bus is a heterogeneous redundant structure, including a CAN bus and a PCIE bus.

[0041] like Figure 1 As shown, the various boards are arranged on the backplane 2 in the order of digital input board 3, digital output board 4, switch board 5, central processing board 6, communication board 7, auxiliary driving calculation board 8, data recording board 9 and power board group 10.

[0042] Among them, the digital input board 3 can be called a DI (Digital Input) board, which is mainly used to collect and process DC110V digital signals, and exchange data with the central processing board 6 through the CAN bus and PCIE bus. In addition, the DI board has optocoupler electrical isolation, channel function self-diagnosis, voltage monitoring, signal retention and watchdog functions; specifically, the DI board includes a communication module, a main chip module, a power module and a front-end circuit module.

[0043] The digital output board 4 can be called a DO (digital output) board, which is mainly used to output a DC110V digital signal and exchange data with the central processing board 6 through the CAN bus and the PCIE bus. The DO board has optocoupler electrical isolation, channel function self-diagnosis, overcurrent protection, self-recovery function and watchdog function; specifically, the DO board includes a communication module, a main chip module, a power module and a front-end circuit module.

[0044] The switch board 5 can be called a SW (Switch) board, which is mainly used to complete data communication between the digital input board 3, the digital output board 4, the switch board 5, the central processing board 6, the communication board 7, and the auxiliary driving calculation board 8, and complete the interconnection between these boards.

[0045] The central processing board 6 can be called a CPU (Central Processing Unit) board, which is the central processor of the entire EMU assisted driving system, and is mainly responsible for the scheduling and communication of all software and hardware resources of the entire EMU assisted driving system. The CPU board has self-diagnosis capabilities, exchanges data with other boards through the CAN bus and PCIE bus, and can also monitor itself and other boards. Specifically, the CPU board will detect the entire EMU assisted driving system in real time, including temperature, voltage, communication, etc., and perform fault storage and guided safety operations, and record all data of the entire system operation in real time, so that the entire EMU assisted driving system complies with the fault-guided safety principle.

[0046] The communication board 7 can be called a TSN (Time Sensitive Networking) board, which is the external interface of the EMU auxiliary driving system and is responsible for the communication between the EMU auxiliary driving system and the switch in the same network segment. The TSN board can be an independent standard 3U board with a width of 4HP, that is, the TSN board is 3 inches high and 4 Hz wide. In addition, the TSN board is loaded with a TSN communication protocol stack. There are three Ethernet interfaces on the front panel of the board, two of which are Ethernet connection interfaces and one is a maintenance interface. The TSN board communicates with the central processing board 6 through the CAN bus and the PCIE bus.

[0047] The driver assistance computing board 8 can be called a DAS (Driver Assistance System) board, which is mainly used to complete the core intelligent model calculation, and is responsible for storing static information such as train timetables, line data, and trip data, and performing local storage and analysis. Among them, the line data mainly includes running kilometer marks, line speeds, ramps, tunnels, speed limit information, train timetables, etc. Specifically, the train timetable includes the time and station information of train departure and arrival. Specifically, the DAS board includes a high-speed Ethernet interface, which is connected to the CAN bus and the PCIE bus through the high-speed Ethernet interface, and communicates with the central processing board 6 and the data recording board 9 through the CAN bus and the PCIE bus.

[0048] The data recording board 9 can be called a REC (Recorder) board, which is mainly used to record the operating data of the EMU auxiliary driving system in real time, and specifically obtains the required recorded data through the CAN bus and PCIE bus. The digital input board 3, the digital output board 4, the switch board 5, the central processing board 6, the communication board 7, and the auxiliary driving calculation board 8 will record their own operating status and operating time and send these recorded data to the REC board. After the REC board receives the recorded data sent by other boards, it will calculate the remaining life of the board through intelligent calculation. The front panel of the REC board includes an LCD screen, and the remaining life and operating time of each board will be displayed on the LCD screen.

[0049] The power board group 10 can be called a PWR (Power) board group, which is a redundant structure, including a first power board PWR1 and a second power board PWR2. Specifically, PWR1 and PWR2 use different hardware designs to form a redundant structure. The power board group 10 integrates a DC110V / 24V power supply to power the entire EMU auxiliary driving system.

[0050] Optional, see Figure 2 , an example top view of the EMU assisted driving system provided in this application.

[0051] like Figure 2 As shown, the anti-vibration bar 14 is installed on the top of the board mounting frame 1. In addition, the anti-vibration bar 14 is also installed on the bottom of the board mounting frame 1. The board mounting frame is symmetrically provided with mounting grooves at the bottom and top. The anti-vibration bar 14 is installed on the mounting grooves. The installation direction of the anti-vibration bar 14 includes the extension direction of each board and the arrangement direction of each board. That is, as shown in FIG. Figure 2 As shown, the installation direction of the anti-vibration strip 14 is parallel to the extension direction of each board and perpendicular to the arrangement direction of each board. It can also be perpendicular to the extension direction of each board and parallel to the arrangement direction of each board.

[0052] in addition, Figure 2 The second mounting hole 13 of the board mounting bracket 1 is marked.

[0053] Optionally, the EMU auxiliary driving system further includes a fan, which is mounted at the bottom of the board mounting frame 1 .

[0054] In summary, installing anti-vibration strips 14 at the top and bottom of the board mounting frame 1 can effectively reduce the impact of vibrations generated during train operation on the EMU auxiliary driving system, effectively increase the seismic resistance of the EMU auxiliary driving system, and thus increase the service life of the entire EMU auxiliary driving system.

[0055] For example, see Figure 3 , a side view example diagram of the EMU assisted driving system provided in this application.

[0056] Figure 3 The circled portion is the bottom of the board mounting frame 1, which is used to mount a fan, and the blowing direction of the fan is perpendicular to the arrangement direction of the boards.

[0057] Specifically, the fan is connected to the central processing board 6, and the central processing board 6 controls the start and stop of the fan. The central processing board has a temperature detection function. When it is detected that the temperature of the EMU auxiliary driving system is too high, the fan is started to cool down. When the temperature of the entire system reaches the normal temperature, the fan is turned off, which is intelligent and power-saving.

[0058] The design of the fan can further improve the service life of the EMU auxiliary driving system.

[0059] In summary, the EMU assisted driving system provided by the present application includes a board mounting frame, a seismic strip installed on the top of the board mounting frame and / or the bottom of the board mounting frame, a backplane, and a digital input board, a digital output board, a switching board, a central processing board, a communication board, an assisted driving computing board, a data recording board, and a power board group arranged on the backplane, each of the above-mentioned boards includes a first mounting hole, the board mounting bracket includes a second mounting hole, each board is fixed to the board mounting frame by a fastener, and the backplane includes a backplane bus and a backplane connector connected to each board. The present application adopts a modular design to integrate the entire EMU assisted driving system into the board mounting frame in the form of a board, which solves the problem of low integration of the EMU assisted driving system existing in the prior art.

[0060] Specifically, the EMU assisted driving system provided in the present application can be specifically applied to high-speed electric multiple unit trains, which can improve the operating efficiency, safety and passenger comfort of the train, and can timely discover and handle faults by real-time monitoring of the train operating status and parameters, thereby reducing the efficiency of accidents; the EMU assisted driving system can automatically calculate the optimal operating parameters, automatically adjust the speed of the train, so that the train can run smoothly according to actual conditions, improve the efficiency and accuracy of operation, and reduce the driver's operating intensity and improve the running smoothness of the train through technologies such as automatic driving and remote control, thereby improving the passenger's riding experience.

[0061] The EMU assisted driving system provided in this application also has the following advantages:

[0062] It is more intelligent and can realize more automatic control and automatic driving functions; it is safe and reliable and can continuously optimize and improve the system design and algorithm, improve the safety and reliability of the entire EMU auxiliary driving system, can greatly reduce the occurrence of failures and accidents, and by optimizing the design of the board mounting frame, improve the seismic resistance and practicality of the entire system; it is energy-saving and environmentally friendly. The auxiliary driving system of the EMU provided in this application can reduce the energy consumption and emissions of the EMU.

[0063] It should be noted that the above boards are connected to each other through backplane wiring, that is, through the CAN bus and the PCIE bus. Figure 4 , a schematic diagram of the system architecture of the EMU assisted driving system provided in this application.

[0064] like Figure 4 As shown, the CPU board, REC board, TSN board, SW board, DI board, DO board, and DAS board are all connected to the CAN bus and PCIE bus.

[0065] Specifically, the CPU board exchanges data with other boards through the CAN bus and PCIE bus, and can also monitor itself and other boards. The Ethernet communication interface of the CPU board can be used for software upgrades and maintenance tests of the EMU auxiliary driving system.

[0066] The REC board acquires and records data in real time through the CAN bus and PCIE bus. For example, the REC board acquires the number of high and low level beats of each point of the DI board and the DO board through the CAN bus and the PCIE bus. In addition, external devices can download the operation data of the EMU auxiliary driving system through the Ethernet communication interface of the REC board. After data analysis, it can assist on-site personnel in troubleshooting and accurately locate the fault point.

[0067] The DAS board can quickly obtain vehicle information from the CPU board and REC board through the CAN bus and PCIE bus.

[0068] The DI board and DO board use a 48-pin 110V input and output interface to obtain the vehicle's electrical status information and realize electrical control of the vehicle.

[0069] The Ethernet interface of the TSN board is connected to the switch to obtain the vehicle's control information, and is connected to the vehicle's display screen to display the curve.

[0070] The entire EMU auxiliary driving system adopts 24V power supply, which is redundantly powered by PWR1 board and PWR2 board.

[0071] In summary, this heterogeneous redundant connection structure can avoid common cause communication failures and improve the safety and reliability of the EMU assisted driving system. It should also be noted that the EMU assisted driving system provided in this application is a component of the train network control system, which is closely integrated with the train network, can obtain train operation information in real time, and provide real-time feedback on train operation suggestions, thereby achieving better and more accurate control effects.

[0072] In practical applications, the EMU assisted driving system provided by this application is connected to the train control network through the train communication bus, and exchanges signals with the train central control unit, the driver display screen, and the remote wireless transmission device, and obtains the current actual running speed of the train, the driver's handle status, and the traction brake status from the train central control unit, and obtains the train position and other information from the remote wireless transmission device. After internal calculation, the driver assisted driving system sends train operation suggestions to the driver display screen through the train control network, and accurately displays the recommended speed information and operation information on the main page of the driver display screen, so that the driver can only focus on one driver display screen when operating the train. The operation is simple and convenient, reducing the burden on the driver. As an auxiliary function of the EMU, it prompts and guides the driver to complete energy-saving driving operations under the premise of safety and punctuality.

[0073] It should also be noted that the system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the drawings of the system embodiments provided by the present application, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines.

[0074] Through the description of the above implementation mode, the technicians in the field can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course, it can also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components, etc. In general, all functions completed by computer programs can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be various, such as analog circuits, digital circuits or special circuits. However, for the present application, software program implementation is a better implementation mode in more cases. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer floppy disk, a U disk, a mobile hard disk, a ROM, a RAM, a disk or an optical disk, etc., including a number of instructions to enable a computer device (which can be a personal computer, a training device, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0075] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

Claims

1. An EMU assisted driving system, characterized in that: include: A board mounting frame, an anti-vibration strip, a back plate, and a digital quantity input board, a digital quantity output board, a switching board, a central processing board, a communication board, an auxiliary driving calculation board, a data recording board, and a power supply board group arranged on the back plate; Each board on the backplane includes a first mounting hole, and the board mounting frame includes a second mounting hole corresponding to the first mounting hole; the second mounting hole has a shape of a slot or a circle, and each board is fixed to the board mounting frame by a fastener after being aligned with the first mounting hole and the second mounting hole; the board mounting frame is provided with a third mounting hole for fixing the board mounting frame at a target position; The backplane includes a backplane bus and backplane connectors corresponding to each of the boards, and the backplane connectors are connected to each of the boards; the digital input board, digital output board, switch board, central processing board, communication board, auxiliary driving calculation board, and data recording board are all connected to the backplane bus; The anti-vibration strip is installed on the top of the board mounting frame and / or the bottom of the board mounting frame.

2. The EMU assisted driving system according to claim 1, characterized in that: The various boards are arranged on the backplane in the order of the digital input board, digital output board, switch board, central processing board, communication board, auxiliary driving calculation board, data recording board and power board group.

3. The EMU assisted driving system according to claim 1, characterized in that: The top of the board mounting frame and / or the bottom of the board mounting frame are symmetrically provided with mounting grooves; The anti-vibration bar is installed on the installation slot, and the installation direction of the anti-vibration bar is the extension direction of each board and the arrangement direction of each board.

4. The EMU assisted driving system according to claim 1, characterized in that: The backplane bus is a heterogeneous redundant structure, including a CAN bus and a PCIE bus.

5. The EMU assisted driving system according to claim 1, characterized in that: The power board group is a redundant structure, including a first power board and a second power board.

6. The EMU assisted driving system according to claim 1, characterized in that: The front panel of the data recording board includes a liquid crystal screen.

7. The EMU assisted driving system according to claim 1, characterized in that: Also includes a fan; The fan is installed at the bottom of the board mounting frame and connected to the central processing board; the blowing direction of the fan is perpendicular to the arrangement direction of the boards.

8. The EMU assisted driving system according to claim 4, characterized in that: The auxiliary driving computing board includes a high-speed Ethernet interface; The auxiliary driving computing board adopts the high-speed Ethernet interface to connect to the CAN bus and the PCIE bus, and communicates with the central processing board and the data recording board through the CAN bus and the PCIE bus.

9. The EMU assisted driving system according to claim 1, characterized in that: The communication board is 3 inches high and 4 Hz wide; The front panel of the communication board includes three Ethernet interfaces, two of which are Ethernet connection interfaces and one is a maintenance interface.

10. The EMU assisted driving system according to claim 1, characterized in that: The digital quantity input board and the digital quantity output board both include a communication module, a main chip module, a power supply module and a front-end circuit module.

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