Fixed marshalling train network architecture system

Abstract

The invention discloses a network architecture system for a fixed marshalling train. The network architecture system comprises non-time-sensitive terminal equipment ED, time-sensitive terminal equipment ED-S and a time-sensitive switch, the time-sensitive switch comprises an A-type port, a B-type port and a C-type port; the A-type port and the B-type port are mutually redundant, and the A-type port is used for transmitting data to time-sensitive terminal equipment ED-S in a frame copy form; the B-type port is used for transmitting data to time-sensitive terminal equipment ED-S in a frame copy form; the A-type port, the B-type port and the C-type port respectively use different Ethernet VLANs (Virtual Local Area Networks); the time-sensitive terminal equipment ED-S is a terminal of a train supporting a time-sensitive function, and the time-sensitive terminal equipment ED-S and the connected switch carry out time synchronization. According to the invention, the problem that seamless redundancy of key data of a current train network cannot be realized is solved, and the problem of communication between different devices under a new network topology is solved through a data transmission method.

Description

technical field [0001] The invention relates to the field of train network architecture, in particular to a fixed-group train network architecture system. Background technique [0002] The train network control system is one of the core systems of high-speed trains, locomotives, and urban rail transit vehicles. It is called the "brain and nervous system" of the train. Train-level logic control and diagnosis of air-conditioning and other systems. [0003] At present, there are solutions for multi-network integration using ordinary Ethernet, but Ethernet works in an asynchronous manner, and the data transmission time is neither accurate nor uncertain; although general Ethernet technology solves the problem of many devices sharing network infrastructure and data However, real-time data transmission between devices has not been well realized, and there is currently a problem that the data of train safety-critical equipment cannot be switched seamlessly and redundantly. Conten...

AI Technical Summary

Problems solved by technology

[0003] At present, there are solutions for multi-network integration using ordinary Ethernet, but Ethernet works in an asynchronous manner, and the data transmission time is neither accurate nor uncertain; although general Ethernet technology solves the problem of many devices sharing network infrastructure and data However, real-time data transmission between devices has not been well realized, and there is currently a problem that the data of train safety-critical equipment cannot be switched seamlessly and redundantly

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