CN220493010U - TCMS system fusion structure based on Ethernet communication - Google Patents

Abstract

The utility model discloses a TCMS system fusion structure based on Ethernet communication, which comprises the following components: an Ethernet line; the signal system equipment is connected with a plurality of signal system equipment through the Ethernet cable, and a sub-network is formed among the signal system equipment; and the converged network is obtained by converging the signal system intranet and the maintenance network, and is accessed to one end of the signal system equipment through the Ethernet line. The utility model uses the Ethernet multi-network fusion technology to fuse each system of the train into the Ethernet system, the communication network adopts a link aggregation structure, the high reliability of data transmission is ensured, and the single-point fault does not affect the functions of the train-level communication network. And constructing a hundred-megaEthernet backbone network, integrating a plurality of networks such as a control network, a maintenance network, a signal system intranet and the like, and constructing the whole-vehicle integrated Ethernet network.

Description

TCMS system fusion structure based on Ethernet communication

Technical Field

The utility model relates to the technical field of subway train Ethernet networks, in particular to a TCMS system fusion structure based on Ethernet communication.

Background

The common implementation mode of the subway train is to simultaneously realize a plurality of sets of Ethernet networks which are separated from each other, and the existence of the plurality of sets of separated Ethernet networks increases the complexity of the train communication network, so that the design, operation and maintenance cost of the train is greatly increased. The multiple sets of networks in the vehicle comprise a vehicle control network, a maintenance network and an intranet of a subsystem, such as a car door intranet (CAN), a signal network intranet (Ethernet) and a passenger information system intranet (Ethernet). Therefore, the Ethernet multi-network integration technology is adopted to integrate each system of the train into the Ethernet system, a link aggregation structure is adopted to ensure high reliability of data transmission, and meanwhile, a hundred-megaEthernet backbone network is required to be built to realize integration of multiple networks such as a control network, a maintenance network, a signal system intranet and the like, so that the whole-vehicle integrated Ethernet network is formed.

Disclosure of Invention

The utility model provides a TCMS system fusion structure based on Ethernet communication, which aims to solve the technical problems, wherein the TCMS system fusion structure comprises:

an Ethernet line;

the signal system equipment is connected with a plurality of signal system equipment through the Ethernet cable, and a sub-network is formed among the signal system equipment;

and the converged network is obtained by converging the signal system intranet and the maintenance network, and is accessed to one end of the signal system equipment through the Ethernet line.

The TCMS system fusion structure further comprises a connector, wherein the connector is provided with a jack end and a contact pin end.

In the TCMS system fusion structure, the signal system device is installed at the jack end of the connector, and the ethernet cable is installed at the pin end of the connector.

The TCMS system fusion structure described above, wherein the signal system device includes a first layer signal system device and a second layer signal system device.

The TCMS system fusion structure described above, wherein the subnetwork includes a first subnetwork and a second subnetwork, the signal system device is connected to the first subnetwork, and the signal system device is connected to the second subnetwork.

The TCMS system fusion structure described above, wherein the first subnetwork and the second subnetwork are two independent subnetworks.

In the above TCMS system fusion structure, when the first sub-network or the second sub-network fails, the second sub-network or the first sub-network may implement all functions that can be implemented by the failed first sub-network or the failed second sub-network.

The TCMS system convergence structure described above, wherein the signal system device is connected to a plurality of switch link aggregation fabrics.

According to the TCMS system fusion structure, the switch is provided with the bypass function, when one of the switches fails or is not powered, the switch enters the bypass working condition, and the continuity of the Ethernet cable is still maintained by the rest switches.

The TCMS system fusion structure supports a transparent transmission mechanism so as to meet the access requirement of the signal system equipment.

Compared with the prior art, the utility model has the following effects:

(1) The utility model adopts an integrated design idea, a maintenance network and a signal system intranet are canceled, the control and maintenance of equipment use the same network port, the signal system equipment is directly connected to the vehicle Ethernet, and the traditional vehicle-mounted signal system internal network and train control and monitoring network (namely T CM S, traction system, braking system and the like) are highly integrated by constructing an integrated control network based on a real-time Ethernet technology, so that the optimization of the vehicle-mounted network layout and interfaces among subsystems is achieved, the complexity of the system is reduced, and the real-time performance of the system is improved;

(2) The utility model can provide two independent industrial-level networks for signal system equipment, which are redundant backups, when one channel fails, the other channel can completely provide all functions which can be realized by the original channel;

(3) The utility model supports the signal system equipment to realize the required safety protocol conforming to the EN50159 standard by self through a transparent transmission mechanism.

The foregoing description of the utility model and the following description of embodiments are provided to illustrate and explain the principles of the utility model and to provide further explanation of the utility model as claimed.

Drawings

FIG. 1 is a diagram of a fused network topology of the present utility model;

FIG. 2 is a diagram of a network convergence scheme according to the present utility model;

FIG. 3 is a schematic diagram of a prior art signal-to-vehicle communication interface of the present utility model;

FIG. 4 is a schematic illustration of an M12 connector according to the present utility model;

FIG. 5 is a schematic diagram of a switch bypass of the present utility model;

fig. 6 is a schematic diagram of a switch link aggregation in accordance with the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The exemplary embodiments of the present utility model and the descriptions thereof are intended to illustrate the present utility model, but not to limit the present utility model. In addition, the same or similar reference numerals are used for the same or similar parts in the drawings and the embodiments.

With respect to directional terms used herein, for example: upper, lower, left, right, front or rear, etc., are merely references to the directions of the drawings. Thus, directional terminology is used for purposes of illustration and is not intended to be limiting.

As used herein, the terms "comprising," "including," "having," "containing," and the like are intended to be inclusive and mean an inclusion, but not limited to.

As used herein, "and/or" includes any or all combinations of such things.

Reference herein to "a plurality" includes "two" and "more than two"; the term "plurality of sets" as used herein includes "two sets" and "more than two sets".

Certain terms used to describe the application will be discussed below, or elsewhere in this specification, to provide additional guidance to those skilled in the art in connection with the description of the application.

Referring to fig. 1 and 3, fig. 1 is a schematic diagram of a fused network topology according to the present utility model; FIG. 2 is a diagram of a network convergence scheme according to the present utility model; FIG. 3 is a schematic diagram of a conventional signal-to-vehicle communication interface of the present utility model. As shown in fig. 2 and fig. 3, the TCMS system convergence structure based on ethernet communication includes an ethernet cable, a signal system device, and a convergence network; the signal system equipment is connected with a plurality of signal system equipment through an Ethernet cable, and a sub-network is formed among the signal system equipment; the method comprises the steps of fusing a signal system intranet and a maintenance network to obtain a fused network, and accessing the fused network to one end of signal system equipment through an Ethernet cable;

as shown in fig. 1, the existing vehicle signal system has an independent vehicle-mounted networking, and only one host device is connected to a train network to realize information interaction with vehicles;

as shown in fig. 2 to 3, the present utility model constructs a T CM S network system covering a whole train based on a high bandwidth and high real-time ethernet, and merges various networks of a conventional train, wherein, the merging of an intranet and a maintenance network of a signal system is in detail that, on the basis of not changing the topology structure of a train network control system, the configuration of a sub-network physical circuit and an internal switch inside the signal system is canceled, and the switch and the physical circuit of the train network control system are multiplexed, so as to realize the merging of signal system equipment; wherein, the system equipment ports are integrated in the Ethernet, and are used for transmitting control information and maintenance information

Wherein, ATO in FIG. 3 is the automatic driving of the train; the VD U is a safe discrete input/output unit; the CM U is a communication management unit; AT P is train autonomous protection; AT S is automatic train monitoring; ECN is an ethernet switch.

Referring to fig. 4, fig. 4 is a schematic diagram of an M12 connector according to the present utility model. As shown in fig. 4, the train network structure further includes a connector, the connector is provided with a jack end and a pin end, the signal system equipment is provided with the jack end of the connector, and the ethernet cable is provided with the pin end of the connector, wherein 1-4 in fig. 4 are pins of the M12 connector;

the Ethernet connector is an M12D type coding connector conforming to I E C62076-2-101, the equipment end is a jack, and the cable end is a contact pin.

Referring to fig. 5 to 6, fig. 5 is a schematic diagram of a switch bypass according to the present utility model; fig. 6 is a schematic diagram of a switch link aggregation in accordance with the present utility model. As shown in fig. 5 to 6, the signal system device includes a first layer signal system device and a second layer signal system device; the sub-network comprises a first sub-network and a second sub-network, and the first sub-network and the second sub-network are two independent sub-networks; the signal system equipment is accessed to the first sub-network, and the signal system equipment is accessed to the second sub-network; when the first sub-network or the second sub-network fails, the second sub-network or the first sub-network can realize all functions realized by the failed first sub-network or the failed second sub-network;

wherein, fig. 5 to 6#1, #2, #3, #4 are switches.

The signal system equipment is accessed into a head-tail vehicle exchanger, and the exchanger is provided with a bypass function and a link aggregation function; as shown in fig. 5, the bypass function of the trunk switch is that when one of the switches fails or is not powered, the rest switches maintain the continuity of the ethernet line through the bypass function; as shown in fig. 6, the link aggregation function of the trunk switch is that when a section of line fails, communication between other two units is not affected, and line redundancy is ensured;

as shown in FIG. 2, the utility model adopts a link aggregation mode to form a linear network by the switches supporting the bypass function, and in detail, the network adopts a linear network topology, the devices are linked through Ethernet lines, the train network adopts an Ethernet bus, the train network adopts a two-layer switch, and the train network adopts hundred megaEthernet twisted pairs.

In the utility model, the vehicle fusion network supports UD P/T CP-I P/FT P transparent transmission so as to meet the access requirement of signal system equipment; the fusion network supports QO S, and can support the requirement that the content of the signal system equipment has high priority for external output information; VLAN partitioning is supported and assignment of signal system sub-device fixtures I P is supported.

In summary, the TCMS system fusion structure based on ethernet communication of the present utility model cancels the internal network of the conventional on-board train control device, and instead adopts the integrated design concept, and incorporates the train control device as one of nodes into the network for parallel management with subsystems such as vehicle traction, braking, auxiliary power supply, etc. The utility model optimizes the layout of the vehicle-mounted network and interfaces among all subsystems, reduces the complexity of the system, reduces the wiring quantity and the construction cost, is beneficial to realizing integrated train control logic integration and optimal design from the perspective of the whole train system, is beneficial to improving the performance and the reliability of the train, and is beneficial to managing, controlling and maintaining the train based on a unified platform. The utility model integrally constructs the vehicle network, improves the utilization rate of the cable and reduces the fault points. The integrated vehicle-mounted system shares one set of Ethernet network, so that the communication instantaneity of each system is improved.

Although the present utility model has been described with reference to the above embodiments, it should be understood that the utility model is not limited thereto, but rather, it should be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. The TCMS system fusion structure based on the Ethernet communication is characterized by comprising the following components:

an Ethernet line;

the signal system equipment is connected with a plurality of signal system equipment through the Ethernet cable, and a sub-network is formed among the signal system equipment;

and the converged network is used for converging the signal system intranet and the maintenance network to obtain the converged network, and is connected to one end of the signal system equipment through the Ethernet line, namely the maintenance network and the signal system intranet are canceled, the control and maintenance of the equipment use the same network port, and the signal system equipment is directly connected to the Ethernet.

2. The TCMS system fusion structure according to claim 1, further comprising a connector having a socket end and a pin end.

3. The TCMS system fusion structure according to claim 2, wherein the signal system device is provided with the receptacle end of the connector and the ethernet cable is provided with the pin end of the connector.

4. The TCMS system fusion structure according to claim 1, wherein the signal system device comprises a first layer signal system device and a second layer signal system device.

5. The TCMS system convergence fabric of claim 4, wherein the subnetwork comprises a first subnetwork to which the signal system device is accessed and a second subnetwork to which the signal system device is accessed.

6. The TCMS system convergence fabric of claim 5, wherein the first sub-network and the second sub-network are two independent sub-networks.

7. The TCMS system convergence fabric of claim 6, wherein the second sub-network or the first sub-network is capable of performing all functions performed by the failed first sub-network or the failed second sub-network when the first sub-network or the second sub-network fails.

8.The TCMS system fusion structure according to claim 1, wherein theThe signal system device is connected to a plurality of switch link aggregation network architectures.

9. The TCMS system convergence fabric of claim 8, wherein the switches are provided with bypass functionality, and wherein when one of the switches fails or is not powered, the switch enters a bypass condition, and the remaining switches remain capable of maintaining continuity of the ethernet lines.

10. The TCMS system fusion structure according to claim 6, wherein the TCMS system fusion structure supports a transparent transport mechanism to meet access requirements of the signal system device.