A dual-channel redundant data transmission processing method for railway signal ctc/tdcs system

Abstract

The invention discloses a dual-channel redundant data transmission processing method for a railway signal CTC / TDCS system, which can realize the dual-channel redundant data transmission of the railway signal CTC / TDCS system under the networking structure of dual communication links, Therefore, even if a certain communication network or network equipment fails, the application data will not be lost, and the function realization of the CTC / TDCS system will not be affected, and the timing, integrity and time limit of data transmission will be guaranteed.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a dual-channel redundant data transmission processing method of a railway signal CTC / TDCS system. Background technique [0002] CTC / TDCS system is currently widely used in the field of railway rail transit, mainly to realize the supervision and control of train operation, and to assist traffic dispatchers to manage the entire line of trains. It plays a very important role in improving the efficiency of rail transit transportation and ensuring operation safety. effect. [0003] The communication server of the CTC / TDCS system center subsystem and the self-discipline machine hardware of the station subsystem are generally dual-machine hot standby, and each machine has 2 independent network cards. The communication between the central communication server and the station is generally carried out by constructing a wide area network through two communication links (optical fiber ...

AI Technical Summary

Problems solved by technology

[0007] But the defect of above-mentioned scheme is: there is only one logical channel between the central communication server and the station self-discipline machine (such as between an self-discipline machine and a communication server); this channel is in the local network card resource ( When selecting IP address), it is generally defaulted by the underlying operating system; when connecting to the network card resource (IP address) of the server, the two network card resources (IP address) will generally be tried in order, as long as one connection is successful, if the first If the IP cannot be connected, continue to try the second IP resource, and so on, until a connection is successful

In the mode of dual-network card binding, it is still uncontrollable which WAN 2M link carries the logical channel between the station and the center. Avoid causing logical channel resets

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