Train broadband communication network architecture suitable for railway vehicle

Abstract

The invention relates to a train broadband communication network architecture suitable for a railway vehicle. Specifically, the network architecture is a broadband communication network architecture provided according to train control and an information service network. The train broadband communication network architecture mainly comprises two-level bus architectures which are a train-level network bus and a vehicle-level network bus. According to a train-level network, a broadband network bus is adopted, penetrates through carriages of a whole train, is in linear connection with train-level network elements, and is used for achieving communication between the train-level network elements. According to a vehicle-level network, a broadband network bus is adopted and used for achieving communication between the train-level network elements and vehicle-level network elements, communication between the vehicle-level network elements, and communication between the vehicle-level network elements in the vehicle and vehicle-level equipment provided with broadband network bus interfaces. The train broadband communication network architecture further comprises an equipment-level network bus. According to the equipment-level network bus, other network buses except for the broadband network buses are adopted. Protocol conversion is achieved through gateways connected with the vehicle-level network elements, and communication with the vehicle-level network is achieved.

Description

Technical field [0001] The present invention relates to a train communication network architecture, in particular to a train broadband communication network architecture suitable for rail vehicles. Background technique [0002] The train network control system is one of the core systems of high-speed trains, locomotives, passenger cars, and urban rail transit vehicles. It is called the "nervous system" of trains. Its main function is to realize the control, status monitoring, fault diagnosis and monitoring of the entire train. The train information service system is also one of the important systems for high-speed trains, locomotives, and urban rail vehicles. It is mainly used to provide in-transit services and operation management services. The train broadband communication network is the train data transmission carrier of the train network control system and the train information service system, so the realization of the train broadband communication network is the basis for th...

AI Technical Summary

Problems solved by technology

The existing train communication network architecture usually uses computer control, computer network, communication and information processing technology to connect with train-level network elements, vehicle-level network elements and other train equipment to complete the tasks of control, monitoring and diagnosis of train operation. The communication network architecture with the train control network all adopts a narrow bandwidth bus (such as MV is 1.5M bit / s), the disadvantage is that the bandwidth is low, it is difficult to carry the diagnosis of a large amount of information, and it is impossible to integrate the business of control and information services

The present invention mainly proposes a train broadband communication network architecture for the train network control and service system, which makes up for the blank of the broadband communication bus used in the domestic train control and information service network, and solves the problem of poor coordination of network bus control, that is, when the train-level network fails When the train-level network element cannot automatically reconnect in time or automatically distribute the data on this link to other cascaded links, or when the network element loses power or fails, it cannot ensure the connection of the train-level bus, resulting in traffic Paralyzed, affecting the safety and reliability of train system operation

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