Vehicle-mounted ATC network system and rail transit system

Abstract

The invention discloses a vehicle-mounted ATC network system and a rail transit system. In the scheme, both a train access unit and a train-mounted ATC belong to the train-mounted ATC network system, and network segments of the units in the train access unit and the train-mounted ATC are mutually independent, so that a supplier of the communication system only needs to distribute the network segments to the train access unit of the train-mounted ATC network system when distributing the network segments, without the need of being concerned with related knowledge of the internal design of the vehicle-mounted ATC and the signal system, design independence and operation independence between the communication system and the signal system are achieved, coordination links are reduced, and engineering application efficiency is improved. Moreover, according to the scheme, an application layer unit and a platform layer unit are arranged on mutually independent network segments, division of application layer data and platform layer data can be realized, connection is realized only through a special communication unit, the real-time performance of the platform layer data and the stability of a time sequence are ensured, and the specificity of application software and the application data is improved.

Description

technical field [0001] The invention relates to the field of rail traffic signal systems, and more specifically, relates to a vehicle-mounted ATC network system and a rail traffic system. Background technique [0002] At present, network-based communication is the basic way of exchanging information between external and internal rail transit signaling systems. Whether it is ETCS-3 (European Train Control System, European Train Control System) level train control system or urban rail transit signal system, a dedicated digital communication system (Digital Communication System, DCS) will be built for urban rail transit signal system and Communication of external systems, and communication between subsystems of the next level of urban rail transit signaling system. The urban rail transit signal system is composed of the vehicle part and the ground part, and the information is transmitted between the vehicle and the ground by wireless means, such as GSM-R (Global System for Mob...

AI Technical Summary

Problems solved by technology

It can be seen that the vehicle-mounted TAU needs to be configured according to the network segment and IP allocated by the entire DCS. This part of the work is in the charge of the communication system integrator. This configuration method also requires the vehicle-mounted TAU to obtain the IP information of the vehicle-mounted ATC internal unit for configuration, which leads to The communication system integrator must intervene and be familiar with the information of the signaling system, which significantly weakens the independence of the two systems and reduces the overall work efficiency; and, at present, the data exchange of the core units of the vehicle ATC is realized through Ethernet in the vehicle ATC. However, the exchanged data includes not only application layer data for controlling train operation, but also synchronization data and security protocol data for basic data management. Significant impact on performance such as management

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