Full-duplex double-ring photoelectric network architecture method based on rail transit serial structure

Abstract

The invention relates to a full-duplex double-ring photoelectric network architecture method and system based on a rail transit serial structure, and belongs to the technical field of photoelectric transmission basic links. A closed loop of a communication link is formed through bridging connection among vehicle sections and respective self-loopback of head and tail sections, a double-ring photoelectric network loop with consideration of whole-column series connection and parallel connection can be formed among all sections in a rail transit serial structure, communication of the whole-column serial structure is not affected under the condition that all single-section communication exchange stations in the whole column fail, and the communication efficiency of the whole-column serial structure is improved. Random recombination and arrangement of trains are supported, and the reliability of a rail transit serial structure line is greatly improved, so that stable transmission of a photoelectric network of a whole-column rail transit serial structure is guaranteed. The minimum composition unit of the bridging double-ring photoelectric network infrastructure is three sections, and link expansion can be infinitely prolonged according to actual conditions.

Description

Technical Field

[0001] This invention belongs to the field of optoelectronic transmission basic link technology, specifically relating to a full-duplex dual-ring optoelectronic network architecture method based on a serial structure of rail transit. Background Technology

[0002] In rail transit, the deployment of serial optoelectronic networks places high demands on link architecture and reliability. The entire serial link needs to maintain highly reliable network communication transmission in real time during rail transit operation. When a communication station in a section of the rail transit serial link fails, such as the failure of the fourth communication switching station in a 12-section serial structure, the rail transit serial network link will be broken. The communication network before and after the break point cannot complete switching and transmission, posing a significant safety hazard. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a full-duplex dual-ring optoelectronic network architecture method based on a serial structure in rail transit. By bridging connections between train sections and self-looping at the beginning and end sections, a closed-loop communication link is formed. This enables the formation of a dual-ring optoelectronic network loop between sections in a rail transit serial structure, supporting both series and parallel connections. Even if all communication switching stations in any single section of the train fail, the overall serial communication of the train remains unaffected. This meets the high requirements and reliability of the optoelectronic network deployment link architecture in rail transit serial structures, improving the reliability of network transmission.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A method for a full-duplex dual-ring optoelectronic network architecture based on a serial structure of rail transit includes:

[0006] The first car of a serial rail transit train, which includes multiple cars, is connected to the first+1 car and the first+2 car respectively.

[0007] The last carriage of the serial rail transit train is connected to the first and second carriages of the last carriage in a forward communication manner.

[0008] Any intermediate car X excluding the first car +1 and the last car -1 will be connected to the car X-2 forward and the car X+2 backward in a bridging manner.

[0009] Connect the first + 1 car backward to the (first + 1) + 2 car, and connect the last - 1 car forward to the (last - 1) - 2 car.

[0010] Furthermore, the serial rail transit train comprising multiple carriages includes at least three carriages.

[0011] Further, each car of the serial rail transit train is interconnected by a communication exchange main station and a communication exchange backup station to form a redundant structure.

[0012] Further, the communication exchange main station and the communication exchange backup station each respectively perform full-duplex network communication to the front end and the rear end.

[0013] Further, the communication exchange main station and the communication exchange backup station each respectively output one or more optical fiber communication signals and one or more network communication signals to the front and the rear.

[0014] Further, the link arrangement in each car is completely consistent, supports full-train arrangement reorganization, and supports adding or reducing car units according to use needs.

[0015] Further, the communication exchange main station and the communication exchange backup station of the Xth car are respectively connected to the (X-2)th car in front and the (X+2)th car in back, and each respectively outputs one or more optical fiber communication signals and one or more network communication signals, which pass through the (X-1)th car and the (X+1)th car, and are respectively connected to the communication exchange main station and the backup station of the (X-2)th car and the (X+2)th car.

[0016] In another aspect, the present application provides a full-duplex double-ring photoelectric network architecture system based on a serial rail transit structure, comprising:

[0017] A head and tail connection unit is configured to connect the first car of a serial rail transit train including multiple cars to the (first+1)th car and the (first+2)th car in back, respectively, and connect the last car of the serial rail transit train to the (last-1)th car and the (last-2)th car in front, respectively.

[0018] A middle connection unit is configured to connect any middle car X except the (first+1)th car and the (last-1)th car to the (X-2)th car in front and the (X+2)th car in back in a bridging manner, connect the (first+1)th car to the ( (first+1) +2)th car in back, and connect the (last-1)th car to the ( (last-1) -2)th car in front.

[0019] In a third aspect, the present application provides an electronic device, comprising: one or more processors; a memory for storing one or more programs; wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the foregoing full-duplex double-ring photoelectric network architecture method based on a serial rail transit structure.

[0020] In a fourth aspect, the present application provides a computer readable storage medium, which stores executable instructions, and the instructions, when executed by a processor, enable the processor to implement the full-duplex double-loop optical-electric network architecture method based on the serial structure of rail transit.

[0021] The present application has the following advantages:

[0022] The present application has the following advantages: The present application has the following advantages: The present application has the following advantages:

[0023] The present application has the following advantages: Figure 1 The present application has the following advantages: The present application has the following advantages:

[0024] The present application has the following advantages: Figure 2 The present application has the following advantages: The present application has the following advantages:

[0025] The present application has the following advantages: Figure 3 The present application has the following advantages: The present application has the following advantages:

[0026] The present application has the following advantages: Figure 4 The present application has the following advantages: The present application has the following advantages: The present application has the following advantages:

[0027] The present application has the following advantages: The present application has the following advantages:

[0028] The present application has the following advantages: The present application has the following advantages:

[0029] The present application has the following advantages: Figure 1As shown, the serial rail transit train car section includes the first, last and intermediate sections. Each car is interconnected by a communication exchange main station and a communication exchange backup station to form a redundant structure. The main station and the backup station communication cables are respectively laid in the forward and rear directions. The car head (i.e. the first section) is respectively connected to the first section +1 section and the first section +2 section in the rear direction, and the car tail (i.e. the last section) is respectively connected to the last section -1 section and the last section -2 section in the front direction. For any intermediate car X except the first section +1 section and the last section -1 section, the communication sites of the X -2 section car and the X +2 section car in the front and rear directions are connected by bridging. For the first section +1 section, it only needs to be connected to the (first section +1 section) +2 section car in the rear direction because it has been connected to the first section in the front direction. For the last section -1 section, it only needs to be connected to the (last section -1 section) -2 section car in the front direction because it has been connected to the last section in the rear direction. Through the simulation of self-looping, the communication signals of the whole train section form a closed loop. The bridging interconnection of the car communication link makes the whole train section communication no longer dependent on the continuous availability of the full train communication site. The single failure of any car communication exchange main station or backup station or the simultaneous failure of the communication exchange main station and backup station of a certain car does not affect the communication connection of the whole train section.

[0030] As shown in Figure 2 The figure shows the intermediate section of the serial structure of rail transit except the first and last sections of the train. The communication exchange main station and the communication exchange backup station are used for redundancy in each car. The communication means uses optical fiber communication and network communication to double guarantee. The communication exchange station of each car performs full-duplex network communication to the front end (I bit end) and the rear end (II bit end), respectively. The main station and the backup station are connected to ensure real-time interconnection. The nth car simultaneously outputs one optical fiber communication and one network communication signal from the communication exchange main station and the backup, respectively, to the rear end (II bit end). The link enters the front end (I bit end) of the n+1 section from the rear end (II bit end) of the n section. The link passes through the n+1 section car, and is connected to the n+1 section from the rear end (II bit end) of the n+1 section car, and then enters the n+2 section car, and is connected to the communication exchange main station and the backup station of the n+2 section, respectively, to complete the information communication exchange between the n section car and the n+2 section car. Similarly, the n+1 section communication link is consistent with the above form, and completes the information communication exchange with the n+3 section car.

[0031] As shown in Figure 3The diagram illustrates the link connection between the first and last carriages of a rail transit train with a serial structure. The first and last carriages have the same internal layout as the other carriages, all using full-duplex network communication. At the head end (I-position) of the first and last carriages, a network loop is closed, and cross-links are established between the communication exchange master station and the backup station. As shown in the diagram, the communication exchange master station and backup station of carriage X transmit network data to the first / last carriage and carriage X+1 via the front end (I-position) and the back end (II-position), respectively. The link from car X to the rear (II-position end) is shown in the diagram. The link from car X to the front (I-position end) is output from the head (I-position end) of car X and enters the rear (II-position end) of the first / last car. The link passes through the first / last car and forms a loop at the head (I-position end) of the first / last car, connecting the link loop of the communication switching master station of car X to the communication switching backup station of the first / last car. The link loop of the communication switching backup station of car X is connected to the communication switching master station of the first / last car, simulating the completion of the entire train's communication link closed loop in one operation. The link arrangement within each car is completely consistent, supporting the reconfiguration of the entire train's arrangement and allowing the addition or removal of car unit units according to usage needs, without changing the bridging method or affecting the overall communication link architecture.

[0032] like Figure 4 The diagram illustrates the communication flow of a portion of the train's network. As shown, when both the primary and backup communication stations in carriage n+2 fail, communication information from carriages prior to carriage n+2 can still be relayed from carriage n+1 to carriage n+3, ensuring continued connectivity across the entire train. This full-link, employing a redundant, full-duplex, bridging structure, forms a closed, dual-ring communication architecture, significantly enhancing the reliability of the entire train's network communication.

[0033] In summary, this invention achieves full inter-carriage connectivity across all train sections; the first and last carriages use loopback links to form a full-duplex dual-ring network by closing the entire train's links; the failure of all communication stations in one carriage does not affect the network connectivity of the rest of the train; the failure of any single base station in any carriage does not affect the network connectivity of the entire train; and the entire train can be arbitrarily reassembled.

[0034] On the other hand, the present invention provides a full-duplex dual-ring optoelectronic network architecture system based on a serial structure for rail transit, wherein each unit comprises a component capable of implementing the steps of the aforementioned method, including:

[0035] The first and last connecting units are used to connect the first car of a serial rail transit train, which includes multiple cars, to the first +1 and first +2 cars respectively in a rearward manner; and to connect the last car of the serial rail transit train to the last -1 and last -2 cars respectively in a forward manner.

[0036] The intermediate connection unit is used for connecting any intermediate car X except the first +1 car and the last -1 car, and the X-2 car and the X+2 car are connected in series; the first +1 car is connected with the (first +1) +2 car, and the last -1 car is connected with the (last -1) -2 car.

[0037] In a third aspect, the present application provides an electronic device, comprising: one or more processors; a memory for storing one or more programs; wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned full-duplex double-loop optical-electric network architecture method based on the serial structure of rail transit.

[0038] In a fourth aspect, the present application provides a computer-readable storage medium, which stores executable instructions, and the instructions, when executed by a processor, enable the processor to implement the above-mentioned full-duplex double-loop optical-electric network architecture method based on the serial structure of rail transit.

[0039] The above-mentioned specific embodiments further illustrate the purpose, technical solutions and advantages of the present application. It should be understood that the above-mentioned specific embodiments are only for the specific embodiments of the present application and are not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A full-duplex double-ring photonic network architecture method based on a serial structure of rail transit, characterized in that, The method comprises the following steps: The first car of the serial rail transit train is connected to the first+1 car and the first+2 car respectively in the rear direction; The last car of the serial rail transit train is connected to the last-1 car and the last-2 car respectively in the front direction; Any intermediate car X, except the first+1 car and the last-1 car, is connected to the X-2 car in the front direction and the X+2 car in the rear direction by bridging; The first+1 car is connected to the first+1+2 car in the rear direction, and the last-1 car is connected to the last-1-2 car in the front direction.

2. The full-duplex double ring optical-electro network architecture method based on the serial structure of rail transit of claim 1, wherein, The serial rail transit train comprises at least three cars.

3. The full-duplex double ring optical-electro network architecture method based on the serial structure of rail transit of claim 1, wherein, Each car of the serial rail transit train is connected to the communication exchange master station and the communication exchange backup station to form a redundant structure.

4. The full-duplex double ring optical-electro network architecture method based on the serial structure of rail transit of claim 3, wherein, The communication exchange master station and the communication exchange backup station are connected to the front end and the rear end for full-duplex network communication.

5. The full-duplex double ring optical-electro network architecture method based on the serial structure of rail transit of claim 3, wherein, The communication exchange master station and the communication exchange backup station output one or more optical fiber communication signals and one or more network communication signals in the front and rear directions respectively.

6. The full-duplex double ring optical-electro network architecture method based on rail transit serial structure according to claim 1, characterized in that, The link arrangement in each car is completely consistent, and the full train arrangement reorganization is supported, and the number of car units can be increased or decreased according to the use requirements.

7. The full-duplex double ring optical-electro network architecture method based on the serial structure of rail transit of claim 5, wherein, The communication exchange master station and the communication exchange backup station of the X car output one or more optical fiber communication signals and one or more network communication signals respectively, which pass through the X-1 car and the X+1 car, and are connected to the communication exchange master station and the communication exchange backup station of the X-2 car and the X+2 car respectively.

8. A full-duplex double ring optical-electric network architecture system based on serial structure of rail transit, characterized in that, The method comprises the following steps: The first car of the serial rail transit train is connected to the first+1 car and the first+2 car respectively in the rear direction; The last car of the serial rail transit train is connected to the last-1 car and the last-2 car respectively in the front direction; 9. An electronic device, comprising: Any intermediate car X, except the first+1 car and the last-1 car, is connected to the X-2 car in the front direction and the X+2 car in the rear direction by bridging; the first+1 car is connected to the first+1+2 car in the rear direction, and the last-1 car is connected to the last-1-2 car in the front direction. The method comprises the following steps: One or more processors; A memory for storing one or more programs; 10. A computer-readable storage medium, characterized in that, When the one or more programs are executed by the one or more processors, the one or more processors implement the full-duplex double-loop optical-electric network architecture method based on the serial structure of the rail transit according to any one of claims 1-7. The executable instructions stored thereon can make the processor implement the full-duplex double-loop optical-electric network architecture method based on the serial structure of the rail transit according to any one of claims 1-7 when executed by the processor.

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