TSN information monitoring system and configuration method for fixed marshalling train network

Abstract

This invention discloses a TSN information monitoring system and configuration method for a fixed-formation train network, comprising an onboard unit and a ground unit. The onboard unit includes a TSN-ED terminal device, a network terminal device supporting TSN, capable of receiving and storing TSN configuration information, and connected to its corresponding switching device TSN-SW via Ethernet. The TSN-SW switching device is a switch device supporting TSN, capable of receiving and storing TSN configuration information; multiple TSN-SW switching devices are connected in series. The TSN-MON device is a TSN information configuration and monitoring device, capable of receiving TSN configuration information from TSN-CAL and distributing it to the TSN-SW and TSN-ED devices according to the configuration information path, and connected to the TSN-SW via Ethernet. The ground unit's TSN-CAL device is a TSN information calculation manager, capable of calculating TSN configuration information and distributing TSN information for all TSN devices in the network to the TSN-MON device, and connected to the TSN-MON device via Ethernet. This device has verification capabilities; the configuration information is verified each time the system is powered on.

Description

Technical Field

[0001] This invention belongs to the field of fully automated products and relates to a TSN information monitoring system and configuration method for a fixed-formation train network. Background Technology

[0002] In existing technologies, general TSN configuration technology mainly adopts a centralized management configuration method based on IEEE 802.1QCC. This involves communication between a Centralized User Configuration (CUC) entity and a Centralized Network Configuration (CNC) entity. The CNC obtains user requirements by interacting with the CUC using the TSNUNI protocol. The CNC uses remote management protocols (such as SNMP, Netconf, and Restconf) to discover the network topology and obtain device TSN attributes. Based on user requirements and device TSN attributes, the CNC distributes the calculated gating list to the devices via the remote management protocol. However, train network systems mainly consist of MVB / WTB or ordinary Ethernet communication systems. TSN networks belong to next-generation network technologies, and there is no specific TSN network configuration method for fixed-formation trains.

[0003] For standard Ethernet-based train network systems, each switch needs to be configured offline before being installed on the train. While TSN network systems currently use a configuration method based on the IEEE 802.1Qcc standard, there is no mature solution for configuring such a specific scenario as rail transit train networks.

[0004] Disadvantages of existing technology:

[0005] ①There are many network switches on the train, which need to be configured offline one by one, which is labor-intensive;

[0006] ② There is no centralized management and configuration scheme for terminal equipment and switching equipment in the rail transit TSN network; ③ There is no corresponding network monitoring system to monitor whether the TSN configuration information status of switches and terminal equipment has been modified, resulting in low security. Summary of the Invention

[0007] To solve the above problems, the technical solution adopted by the present invention is: a TSN information monitoring system for fixed train formations, characterized in that: it includes an on-board part and a ground part;

[0008] The vehicle-mounted component includes multiple terminal devices TSN-ED, multiple switching devices TSN-SW, and a TSN network monitor TSN-MON;

[0009] The ground component includes a TSN information computing manager, namely a TSN-CAL device;

[0010] The terminal device TSN-ED is a network terminal device for supporting TSN, which is capable of receiving and storing TSN configuration information and connecting to its corresponding switching device TSN-SW via Ethernet.

[0011] The switching device TSN-SW is a switch device used to support TSN, which is capable of receiving and storing TSN configuration information, and multiple switching devices TSN-SW are connected in series in sequence.

[0012] The TSN-MON device is a TSN information configuration and monitoring device, which is capable of receiving TSN configuration information sent by TSN-CAL and sending it to TSN-SW and TSN-ED devices according to the configuration information path, and is connected to TSN-SW via Ethernet cable;

[0013] The TSN-CAL device is a TSN information calculation manager, which has the ability to calculate TSN configuration information and the ability to distribute TSN information of all TSN devices in the network to the TSN-MON device. It is connected to the TSN-MON device via an Ethernet cable.

[0014] The TSN-CAL device first calculates the configuration information based on the input parameters and sends it to the TSN-MON. In the fixed train formation network, the TSN-MON device will uniformly send the received TSN information to the TSN-SW and TSN-ED devices in the network system.

[0015] Furthermore, it includes the following steps:

[0016] The TSN-CAL device acquires characteristic parameters, and then the TSN-CAL selects the TSN scheduling protocol;

[0017] The TSN-CAL device calculates and saves the TSN configuration scheme.

[0018] When the entire system is powered on for the first time, after the vehicle topology and traffic are determined, the TSN-CAL device sends the configuration data, i.e., the TSN configuration, to the TSN-MON device. At this time, the TSN-CAL device can go offline.

[0019] The TSN-MON sends TSN configurations to the terminal TSN-ED device and the configuration adaptation system based on the netconf / yang model, and sends TSN configurations to the switch.

[0020] The terminal configuration adaptation system on the TSN-ED device, based on the netconf / yang model, configures network card gating according to the received TSN configuration scheme;

[0021] The TSN-MON device acquires real-time monitoring information from the TSN-ED and TSN-SW devices.

[0022] Upon power-on for the second time, the TSN-ED device interacts with the TSN-MON device to verify the TSN configuration information. If the verification fails (i.e., the version numbers are inconsistent), the TSN configuration information is retrieved again from the TSN-MON device.

[0023] Furthermore: During the second power-on, the TSN-ED device interacts with the TSN-MON device to verify the TSN configuration information. If the verification fails, i.e. the version number is inconsistent, the process of re-obtaining the TSN configuration information from the TSN-MON device includes configuration recovery.

[0024] Furthermore, the TSN scheduling protocol adopts the QBV protocol.

[0025] The present invention provides a TSN information monitoring system and configuration method for fixed-formation train networks, which has the following advantages:

[0026] A centralized configuration method is adopted, eliminating the need for individual device configuration.

[0027] By adopting a software-defined approach that combines offline and online states, the deployment of equipment on the train is decoupled from TSN configuration. In the offline state, relevant equipment information and topology are downloaded to TSN-MON, and then uniformly distributed by TSN-MON. In this way, on-board equipment can be deployed directly without considering the TSN configuration of the equipment.

[0028] The device has a verification capability, and the configuration information is verified every time it is powered on, thus improving reliability. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 It is a system architecture diagram;

[0031] Figure 2 It is a flowchart of the specific implementation process;

[0032] Figure 3 This is a diagram showing the TSN-ED's TSN configuration recovery process after a second power-on;

[0033] Figure 4 This is a diagram of the TSN-SW power-on configuration self-recovery process. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0038] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0039] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0040] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0041] Figure 1 It is a system architecture diagram;

[0042] Figure 2 It is a flowchart of the specific implementation process;

[0043] A TSN information monitoring system for a fixed-formation train network includes an onboard component and a ground component;

[0044] The vehicle-mounted component includes multiple terminal devices TSN-ED, multiple switching devices TSN-SW, and a TSN network monitor TSN-MON;

[0045] The ground component includes a TSN information computing manager, namely a TSN-CAL device;

[0046] The terminal device TSN-ED is a network terminal device for supporting TSN, which is capable of receiving and storing TSN configuration information and connecting to its corresponding switching device TSN-SW via Ethernet.

[0047] The switching device TSN-SW is a switch device used to support TSN, which is capable of receiving and storing TSN configuration information, and multiple switching devices TSN-SW are connected in series in sequence.

[0048] The TSN-MON is a TSN information configuration and monitoring device, which can receive TSN configuration information sent by TSN-CAL and send it to TSN-SW and TSN-ED devices according to the configuration information path. It is connected to TSN-SW via Ethernet cable.

[0049] The TSN-CAL is a TSN information calculation manager, which has the ability to calculate TSN configuration information and to distribute TSN information of all TSN devices in the network to the TSN-MON device. It is connected to the TSN-MON device via an Ethernet cable.

[0050] The TSN-CAL first calculates the configuration information based on the input message size, transmission period and other relevant parameters, and then sends it to the TSN-MON. In the fixed train network, the TSN-MON device will uniformly send the received TSN information to the TSN-SW device and TSN-ED device in the network system.

[0051] The TSN information calculation manager is deployed on an external PC and its main functions are: configuring network traffic, selecting the TSN protocol; calculating the traffic scheduling scheme, distributing the TSN configuration scheme; and saving the latest TSN configuration scheme.

[0052] TSN Information Configuration and Monitoring Device: Deployed on the board, its main function is to monitor network device information. In the current topology, it mainly monitors the CPU, memory, and port count information of TSN-ED and TSN-SW; synchronously saves the TSN configuration scheme of TSN Information Calculation Manager; and distributes the TSN configuration scheme.

[0053] The configuration adaptation system based on the netconf / yang model is deployed on the TSN-ED device. It is mainly responsible for receiving TSN configuration information and deploying TSN-related configurations; saving the latest TSN configuration scheme; and verifying TSN configuration (mainly for version verification, such as version number verification or configuration time verification).

[0054] Considering the reliability of configuration recovery after power-down and power-on: TSN-MON has backup configuration data for the entire network topology. When the configuration of a certain device (board) fails verification, the TSN configuration scheme of the current device can be obtained from the TSN-MON device.

[0055] A monitoring method for a TSN (Train Safety Number) information monitoring system for a fixed-formation train network includes the following steps:

[0056] TSN-CAL obtains the feature parameters, and then TSN-CAL selects the TSN scheduling protocol;

[0057] TSN-CAL calculates and saves the TSN configuration scheme;

[0058] When the entire system is powered on for the first time, after the vehicle topology and traffic are determined, the TSN-CAL device sends the configuration data, i.e., the TSN configuration, to the TSN-MON device. At this time, the TSN-CAL device can go offline.

[0059] TSN-MON sends TSN configuration to the terminal TSN-ED, and the configuration adaptation system based on the netconf / yang model sends TSN configuration to the switch;

[0060] The terminal configuration adaptation system on the TSN-ED device, based on the netconf / yang model, configures network card gating according to the received TSN configuration scheme;

[0061] The TSN-MON device acquires real-time monitoring information from the TSN-ED and TSN-SW devices.

[0062] Upon power-on for the second time, the TSN-ED device interacts with the TSN-MON device to verify the TSN configuration information. The configuration information includes a version number, which can be compared for verification. If the verification fails (i.e., the version numbers are inconsistent), the TSN configuration information is retrieved again from the TSN-MON device.

[0063] The entire configuration recovery process of TSN-ED is completed by the terminal configuration adaptation system based on the netconf / yang model on the board.

[0064] The TSN scheduling protocol uses the QBV protocol.

[0065] The TSN configuration scheme calculates the gating based on the QBV protocol.

[0066] Figure 3 This is a diagram illustrating the TSN-ED secondary power-on TSN configuration recovery process; the TSN-ED secondary power-on TSN configuration recovery process is as follows:

[0067] S1: TSN-ED secondary power-on;

[0068] S2: Perform clock synchronization.

[0069] S3: If clock synchronization is successful, continue clock synchronization; if clock synchronization fails, proceed to S4.

[0070] S4: Determine whether the TSN configuration verification is successful. If the TSN configuration verification is successful, proceed to S5. If the TSN configuration verification fails, return TSN-MON.

[0071] S5: Distribute TSN configuration;

[0072] S6: Perform TSN configuration restoration.

[0073] Figure 4 This is a diagram illustrating the power-on configuration self-recovery process of the TSN-SW; the TSN-SW power-on configuration self-recovery process is as follows:

[0074] S1: Power on the TSN-SW device;

[0075] S2: Perform clock synchronization;

[0076] S3: Determine if the clock is synchronized. If the clock is not synchronized, return to S2. If the clock is synchronized, proceed to S4.

[0077] S4: Determine if the time precision has changed; if the time precision has changed, proceed to S5; if the time precision has not changed, proceed to S6.

[0078] S5: Deploy TSN configuration (qbv gating);

[0079] S6: Perform TSN configuration restoration.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions 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

1. A TSN information monitoring system of a fixed marshalling train network, characterized in that: Includes vehicle-mounted and ground-based components; The vehicle-mounted component includes multiple terminal devices TSN-ED, multiple switching devices TSN-SW, and a TSN network monitor TSN-MON; The ground component includes a TSN information calculation manager, namely a TSN-CAL device; The terminal device TSN-ED is a network terminal device for supporting TSN, which is capable of receiving and storing TSN configuration information and connecting to its corresponding switching device TSN-SW via Ethernet. The switching device TSN-SW is a switch device used to support TSN, which is capable of receiving and storing TSN configuration information, and multiple switching devices TSN-SW are connected in series in sequence. The TSN-MON device is a TSN information configuration and monitoring device, which is capable of receiving TSN configuration information sent by TSN-CAL and sending it to TSN-SW and TSN-ED devices according to the configuration information path, and is connected to TSN-SW via Ethernet cable; The TSN-CAL device is a TSN information calculation manager, which has the ability to calculate TSN configuration information and the ability to distribute TSN information of all TSN devices in the network to the TSN-MON device. It is connected to the TSN-MON device via an Ethernet cable. The TSN-CAL device first calculates the configuration information based on the input parameters and sends it to the TSN-MON. In the fixed train formation network, the TSN-MON device will uniformly send the received TSN information to the TSN-SW and TSN-ED devices in the network system.

2. The monitoring method of a TSN information monitoring system for a fixed-formation train network according to claim 1, characterized in that: Includes the following steps: The TSN-CAL device acquires characteristic parameters, and then the TSN-CAL selects the TSN scheduling protocol; The TSN-CAL device calculates and saves the TSN configuration scheme. When the entire system is powered on for the first time, after the vehicle topology and traffic are determined, the TSN-CAL device sends the configuration data, i.e., the TSN configuration, to the TSN-MON device. At this time, the TSN-CAL device can go offline. The TSN-MON sends TSN configurations to the terminal TSN-ED device and the configuration adaptation system based on the netconf / yang model, and sends TSN configurations to the switch. The terminal configuration adaptation system on the TSN-ED device, based on the netconf / yang model, configures network card gating according to the TSN configuration scheme received by netconf; The TSN-MON device acquires real-time monitoring information from the TSN-ED and TSN-SW devices. Upon power-on for the second time, the TSN-ED device interacts with the TSN-MON device to verify the TSN configuration information. If the verification fails (i.e., the version numbers are inconsistent), the TSN configuration information is retrieved again from the TSN-MON device.

3. The monitoring method of a TSN information monitoring system for a fixed-formation train network according to claim 2, characterized in that: During the second power-on, the TSN-ED device interacts with the TSN-MON device to verify the TSN configuration information. If the verification fails (i.e., the version numbers are inconsistent), the process of re-obtaining the TSN configuration information from the TSN-MON device includes configuration recovery. The configuration recovery process is as follows: After the TSN-SW device is powered on, it will perform clock synchronization. When the time accuracy changes, it will automatically send out TSN configuration, i.e. QBV gating. After clock synchronization stabilizes, the TSN configuration is in a stable state, and the TSN configuration is restored.

4. The monitoring method of a TSN information monitoring system for a fixed-formation train network according to claim 2, characterized in that: The TSN scheduling protocol adopts the IEEE 802.1qbv protocol.

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