WO2021110012A1 - High-speed intelligent network control system - Google Patents

Abstract

Provided is a high-speed intelligent network control system, comprising a train backbone ring network, and a train control subnet, a video transmission subnet, a train maintenance subnet, a sub-device mutual transmission subnet and a train-ground wireless transmission subnet that are connected to the train backbone ring network. The present invention realizes the function of Ethernet whole train control mainly by using an Ethernet network, and realizes the unification of a whole train control network and the train control subnet, the video transmission subnet, the train maintenance subnet, the sub-device mutual transmission subnet and the train-ground wireless transmission subnet, thereby greatly improving the network transmission speed of the whole train, and reducing the wiring types and length for the whole train. The functions of ground remote device maintenance, diagnosis and monitoring are realized by using a train-ground wireless transmission subnet, and the functions of big data analysis, fault early-warning, etc. of a ground server are realized, thereby greatly improving the convenience and the intelligence of vehicle maintenance.

Description

A high-speed intelligent network control system Technical field

The invention relates to the technical field of network control of rail transit vehicles such as subways and light rails, and in particular, to a high-speed intelligent network control system.

Background technique

Ethernet has the advantages of low equipment cost, high openness, high communication bandwidth, and mature technology. In 2011, the International Electrotechnical Commission formulated the IEC61375-2-5 standard, which describes a train-level network based on the IEEE802.3 standard Ethernet and TCP/IP protocol-Ethernet Train Backbone (ETB)

The technical solutions disclosed in the prior art include: the TCMS system bus is composed of a train bus and a vehicle bus. Both train bus and vehicle bus use MVB bus. The vehicle bus of each vehicle uses a physically redundant MVB bus to connect various devices in the vehicle, and the physical medium is EMD. The central control unit CCU is located in the Tc car, and both CCUs are the master devices of the MVB bus, which are hot standby for each other during operation. Each vehicle is equipped with a remote input/output device RIOM. The RIOM chassis is connected to the vehicle bus through the MVB interface to realize the main control signal acquisition and control of the 110VDC control circuit.

The data recorder realizes automatic information collection and recording of the operating status and faults of the main train equipment, and can read and print the data through the portable test unit PTU. The two display screens located in the Tc car are respectively connected to the train network through the MVB interface, and the Ethernet port of the display screen is led to the maintenance panel of the vehicle through an extension cable for updating the display software. Other subsystems are connected to TCMS through MVB bus or input/output device RIOM. Devices without MVB bus interface can be connected to MVB bus through protocol conversion module. For the input and output signals related to driving safety, it is recommended to adopt the redundant design of the network plus the hard wire, and the network signal is preferred. When the network fails, the hard wire signal is used.

Its shortcomings are: the current more general train communication networks such as TCN, LonWorks, WorldFIP, ARCNET, CAN, etc., have a single network topology, low information transmission speed, poor networking flexibility, and limited throughput capacity. With computer technology and train control With the continuous development of network applications, it has become increasingly unable to meet the needs of future train network control systems.

In addition, the technical solution disclosed in the prior art also includes the vehicle-mounted part of the vehicle-to-ground wireless transmission system, which is composed of data acquisition and transmission equipment and an antenna. Among them, the vehicle-mounted data acquisition and transmission equipment collects vehicle data in real time. After being encoded and decoded, the vehicle data is stored and transmitted to the ground server in real time through the antenna, and the ground server software is used for analysis.

The disadvantage is that the existing vehicle-to-ground wireless transmission system only transmits vehicle operating data to the ground via WiFi or 4G and stores it in a ground server, and uses ground analysis software for analysis, without forming ground big data and intelligent early warning functions.

Summary of the invention

According to the technical problems raised above, a high-speed intelligent network control system is provided. The present invention mainly uses the Ethernet network to realize the function of whole-vehicle Ethernet control, realizes the whole-vehicle control network and train control subnet, video transmission subnet, train maintenance subnet, sub-equipment mutual transmission subnet, and vehicle-ground wireless transmission subnet The unification of the vehicle network greatly improves the transmission speed of the vehicle network and reduces the type and length of wiring of the vehicle. The use of vehicle-to-ground wireless transmission subnets realizes ground remote equipment maintenance, diagnosis, and monitoring functions, and realizes ground server big data analysis, fault warning and other functions, which greatly improves the convenience and intelligence of vehicle maintenance.

The technical means adopted in the present invention are as follows:

A high-speed intelligent network control system, including: a train backbone ring network and a train control subnet, a video transmission subnet, a train maintenance subnet, a sub-equipment mutual transmission subnet, and a train-to-ground wireless transmission connected to the train backbone ring network Subnet

The train backbone ring network is mainly composed of Gigabit Ethernet switches of each car, which is used to control the equipment of each subnet to realize the data transmission across the car;

The train control subnet includes a main control unit, a display unit, an IO acquisition unit, a data recording unit, and various sub-equipment control units, which are used to realize the process data transmission of the entire vehicle and the entire vehicle control function, monitoring function, vehicle status data and Fault data recording function;

The video transmission subnet includes a video collection control unit, a multimedia control unit, and a video display unit of each vehicle, which is used to realize the monitoring video display, multimedia information display, and playback functions of the entire vehicle;

The train maintenance subnet includes equipment that needs to be maintained on the train, a maintenance switch, and a vehicle-to-ground wireless transmission unit, which is used to implement local or remote maintenance of vehicle equipment;

The sub-equipment mutual transmission subnet is mainly composed of units that need to transmit data to each other between the same equipment control units in different vehicle sections, and is used to implement data communication between the same equipment;

The vehicle-ground wireless transmission subnet includes vehicle-mounted wireless transmission equipment, ground wireless transmission equipment, and ground server, which is used to realize the real-time transmission and analysis of vehicle status data to the ground server and the remote maintenance, diagnosis and monitoring functions of the sub-equipment.

Further, the system adopts a two-level bus topology structure, train bus and vehicle-level bus, train bus and vehicle-level bus adopt ECN vehicle network, and system equipment with Ethernet interface is directly connected to ECN vehicle network.

Further, in the system, the equipment of the entire vehicle is connected by an Ethernet network, and the train backbone ring network is Gigabit Ethernet.

Further, the display unit can simultaneously display the vehicle status and fault data of the train control subnet and the whole vehicle camera monitoring video data of the video transmission subnet.

Further, the ground server has a full life cycle status detection and fault warning function based on big data application.

Further, due to the redundancy of the train backbone ring network, a single point of failure does not affect the communication of the entire train.

Further, the redundancy of the main control unit of the entire vehicle, the failure of a single main control unit does not affect the control of the entire vehicle.

Further, the redundancy of the vehicle-mounted wireless transmission equipment, the failure of a single vehicle-mounted wireless transmission equipment does not affect the wireless data transmission of the entire vehicle.

Further, the redundancy of the vehicle-ground wireless transmission subnet can be selected between 4G and WiFi according to the actual state of the signal, and the vehicle operating data can be transmitted to the ground server.

Compared with the prior art, the present invention has the following advantages:

The high-speed intelligent network control system provided by the present invention simplifies the network wiring of the entire vehicle, so that the networks of different types of networks and equipment of the entire vehicle are unified on one type of network; the entire vehicle display is unified on one display screen, The number of display equipment is reduced; the maintenance and diagnosis of the whole vehicle equipment are remote and intelligent, which improves the efficiency of vehicle maintenance and reduces labor costs.

Based on the above reasons, the present invention can be widely promoted in the field of network control of rail transit vehicles such as subways and light rails.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

Figure 1 is a diagram of the system structure of the present invention.

Fig. 2 is a topological diagram of a vehicle-mounted network provided by an embodiment of the present invention.

Figure 3 is a topological diagram of the vehicle-ground wireless transmission subnet of the present invention.

Detailed ways

It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative, and in no way serves as any limitation to the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "including" are used in this specification, they indicate There are features, steps, operations, devices, components, and/or combinations thereof.

Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The technologies, methods, and equipment known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be regarded as part of the authorization specification. In all the examples shown and discussed herein, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.

In the description of the present invention, it needs to be understood that orientation words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom", etc. indicate the orientation Or positional relationship is usually based on the position or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these positional words do not indicate or imply the pointed device or element It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the protection scope of the present invention: the orientation word "inside and outside" refers to the inside and outside relative to the contour of each component itself.

For ease of description, spatially relative terms can be used here, such as "above", "above", "above the surface", "above", etc., to describe as shown in the figure Shows the spatial positional relationship between one device or feature and other devices or features. It should be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the device described in the figure. For example, if the device in the drawing is turned upside down, then a device described as "above other devices or structures" or "above other devices or structures" will then be positioned as "below the other devices or structures" or "on It's under the device or structure". Thus, the exemplary term "above" may include both orientations "above" and "below". The device can also be positioned in other different ways (rotated by 90 degrees or in other orientations), and the relative description of the space used here will be explained accordingly.

In addition, it should be noted that the use of terms such as “first” and “second” to define parts is only for the convenience of distinguishing the corresponding parts. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood. To limit the scope of protection of the present invention.

The invention provides a high-speed intelligent network control system, which is the vehicle command center, realizes the information transmission and sharing of each subsystem, coordinates the control, monitoring and diagnosis tasks of the central control system and each subsystem, and summarizes the working status and faults of each subsystem Diagnose information, provide information display and human-computer interaction interface, complete vehicle-level control, fault diagnosis, status monitoring and other tasks.

In specific implementation, the system adopts a two-level bus topology, train bus and vehicle-level bus, train bus and vehicle-level bus use ECN vehicle network, and the system equipment with Ethernet interface is directly connected to the ECN vehicle network. The switch interconnection between each car forms a ring-shaped redundant train-level Ethernet. The train-level Ethernet uses Gigabit Ethernet to ensure the effective transmission of the entire vehicle data.

Further, as a preferred embodiment of the present invention, a central control unit CCU is respectively provided in the cabs of the two high-speed trains. The hot standby is redundant during operation. One central control unit CCU is activated, and the other central control unit CCU is in standby. When the control unit CCU fails, the standby automatic activation continues to perform the work of the central control unit CCU.

Further, as a preferred embodiment of the present invention, a data recording unit ERM is respectively provided in the cabs of the two high-speed trains to realize automatic information collection and cyclic recording of the operating status and faults of the main train equipment, and can be passed through the portable test unit PTU The data is read, analyzed and printed; the vehicle operating data can also be transmitted to the ground server through WiFi/4G through the wireless transmission subnet of the vehicle.

Further, as a preferred embodiment of the present invention, each vehicle is provided with a RIOM chassis, and the RIOM chassis is connected to the vehicle ECN bus through an Ethernet interface to realize the collection and control of the main control signals of the control circuit.

During specific implementation:

The equipment of the whole train is connected by Ethernet network, as shown in Figure 1. The system includes: train backbone ring network and train control subnet connected to the train backbone ring network, video transmission subnet, train maintenance subnet, and sub-equipment mutual transmission Subnet and vehicle-to-ground wireless transmission subnet;

The train backbone ring network is mainly composed of Gigabit Ethernet switches of each car. Gigabit Ethernet switches have network management functions, unified management of equipment connected to the switches, and used to control each subnet device to realize data transmission across trains;

The train control subnet includes a main control unit, a display unit, an IO acquisition unit, a data recording unit, and various sub-equipment control units, which are used to realize the process data transmission of the entire vehicle and the entire vehicle control function, monitoring function, vehicle status data and fault data Recording function; further, as a preferred embodiment of the present invention, the display unit can simultaneously display the vehicle status and fault data of the train control subnet and the whole vehicle camera monitoring video data of the video transmission subnet.

The video transmission subnet includes the video capture control unit, multimedia control unit and video display unit of each vehicle, which is used to realize the monitoring video display, multimedia information display and playback functions of the entire vehicle;

The train maintenance subnet includes the equipment that needs to be maintained by the train, maintenance switches, and the wireless transmission unit between the train and the ground. The train maintenance subnet can realize the maintenance of all connected network equipment of the whole train on a specific network interface, including the application and configuration of the equipment Program update, download of fault diagnosis data, etc., used to achieve local or remote maintenance of vehicle equipment;

The sub-equipment mutual transmission subnet is mainly composed of units that need to transmit data to each other between the same equipment control units of different car sections, and is used to realize data communication between the same equipment; the sub-equipment mutual transmission subnet is implemented between specific devices Data interaction converts the internal network connected between sub-equipment into the entire vehicle network for transmission, thereby effectively reducing the entire vehicle's network wiring.

The vehicle-ground wireless transmission subnet includes vehicle-mounted wireless transmission equipment, ground wireless transmission equipment and ground server, which is used to realize the real-time transmission and analysis of vehicle status data to the ground server and the remote maintenance, diagnosis and monitoring functions of the sub-equipment. Further, as a preferred embodiment of the present invention, the ground server has a full life cycle status detection and fault warning function based on big data application.

Furthermore, it can be seen from the above technical solutions that the redundancy of the train backbone ring network and a single point of failure do not affect the communication of the entire train. The redundancy of the main control unit of the whole vehicle, and the failure of a single main control unit does not affect the control of the whole vehicle. The redundancy of the vehicle-mounted wireless transmission equipment, the failure of a single vehicle-mounted wireless transmission equipment does not affect the wireless data transmission of the entire vehicle. The redundancy of the vehicle-ground wireless transmission subnet can select between 4G and WiFi according to the actual state of the signal to transmit vehicle operating data to the ground server.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some or all of the technical features thereof are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. A high-speed intelligent network control system, which is characterized by comprising: a train backbone ring network, a train control subnet, a video transmission subnet, a train maintenance subnet, a sub-equipment mutual transmission subnet, and a train control subnet connected to the train backbone ring network. Vehicle-to-ground wireless transmission subnet;

   The train backbone ring network is mainly composed of Gigabit Ethernet switches of each car, which is used to control the equipment of each subnet to realize the data transmission across the car;

   The train control subnet includes a main control unit, a display unit, an IO acquisition unit, a data recording unit, and various sub-equipment control units, which are used to realize the process data transmission of the entire vehicle and the entire vehicle control function, monitoring function, vehicle status data and Fault data recording function;

   The video transmission subnet includes a video collection control unit, a multimedia control unit, and a video display unit of each vehicle, which is used to realize the monitoring video display, multimedia information display, and playback functions of the entire vehicle;

   The train maintenance subnet includes equipment that needs to be maintained on the train, a maintenance switch, and a vehicle-to-ground wireless transmission unit, which is used to implement local or remote maintenance of vehicle equipment;

   The sub-equipment mutual transmission subnet is mainly composed of units that need to transmit data to each other between the same equipment control units in different vehicle sections, and is used to implement data communication between the same equipment;

   The vehicle-ground wireless transmission subnet includes vehicle-mounted wireless transmission equipment, ground wireless transmission equipment, and ground server, which is used to realize the real-time transmission and analysis of vehicle status data to the ground server and the remote maintenance, diagnosis and monitoring functions of the sub-equipment.
2. The high-speed intelligent network control system according to claim 1, characterized in that the system adopts a two-level bus topology, train bus and vehicle-level bus, train bus and vehicle-level bus use ECN vehicle network, with Ethernet interface The system equipment is directly connected to the ECN vehicle network.
3. The high-speed intelligent network control system according to claim 1, characterized in that, in the system, the equipment of the whole vehicle is connected by an Ethernet network, and the train backbone ring network is Gigabit Ethernet.
4. The high-speed intelligent network control system according to claim 1, wherein the display unit can simultaneously display the vehicle status and fault data of the train control subnet and the whole vehicle camera monitoring video data of the video transmission subnet.
5. The high-speed intelligent network control system according to claim 1, wherein the ground server has a full life cycle status detection and fault warning function based on big data application.
6. The high-speed intelligent network control system according to claim 1, wherein the redundancy of the train backbone ring network, a single point failure does not affect the communication of the whole vehicle.
7. The high-speed intelligent network control system according to claim 1, wherein the main control unit of the entire vehicle is redundant, and the failure of a single main control unit does not affect the control of the entire vehicle.
8. The high-speed intelligent network control system according to claim 1, wherein the redundancy of the vehicle-mounted wireless transmission equipment, and the failure of a single vehicle-mounted wireless transmission equipment does not affect the wireless data transmission of the entire vehicle.
9. The high-speed intelligent network control system according to claim 1, characterized in that the redundancy of the vehicle-to-ground wireless transmission subnet can be selected between 4G and WiFi according to the actual state of the signal to transmit the vehicle operating data to the ground server .

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