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Simulation system main/standby switching method based on railway safety communication protocol

A technology of simulation system and active-standby switching, applied in railway signal and safety, railway traffic management, transmission system, etc., can solve problems such as difficult to quickly locate, dual-master problem switching mode, single problem, etc., so as to facilitate problem finding and write flexibly Effect

Active Publication Date: 2021-04-06
CASCO SIGNAL
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  • Abstract
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AI Technical Summary

Problems solved by technology

Its purpose is to solve the technical problems in the prior art that it is difficult to quickly locate the failure of the main and standby machines, prone to dual-master problems, and a single switching method. However, in actual switching scenarios, it often occurs In the case of communication interruption, the real environment simulation of the system under test cannot be realized

Method used

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  • Simulation system main/standby switching method based on railway safety communication protocol
  • Simulation system main/standby switching method based on railway safety communication protocol
  • Simulation system main/standby switching method based on railway safety communication protocol

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specific Embodiment

[0054] refer to image 3 , execute step S1, and establish an RSSP1 active / standby switching simulation system;

[0055] Through S101, different processes are established to simulate the main system and backup system, A machine and B machine of the external system of RSSP1 respectively.

[0056] After the simulation test system is established, a connection is established with the main system and the backup system of the system under test through step S102.

[0057] For the RSSP1 protocol, the security layer message sent by the external simulation system includes master / standby and A / B machine signs.

[0058]

[0059]

[0060]In the simulation system, there can be many combinations, such as A machine master, B machine backup, or B machine master, A machine backup;

[0061] The one that starts up first is the main system. In this example, machine A is set as the main system, and machine B is set as the backup;

[0062] Through step S2: writing an automatic or manual swit...

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Abstract

The invention relates to a simulation system main / standby switching method based on a railway safety communication protocol, and the method comprises the following steps: S1, initializing a system, and selecting a simulation protocol simulated by an external simulation system; S2, compiling an automatic switching or manual switching script, and sending a switching command; S3, before executing the switching command, performing data synchronization on the main system and the standby system of the simulation system; S4, after the main system and the standby system of the simulation system receive the generator tripping instruction, determining that the main system and the standby system are synchronized at the same time, and converting roles of the main system and the standby system into the standby system or the main system; and S5, recording network information in the switching process. Compared with the prior art, the method has the advantages of solving the problems of secure communication interruption and application data interruption caused by dual-computer switching of the secure communication protocol and the like.

Description

technical field [0001] The invention relates to an active-standby switchover method of a railway signal system, in particular to an active-standby switchover method for a simulation system based on a railway safety communication protocol. Background technique [0002] In the application of railway signaling system safety communication, the master and backup machines of the local system and the master and backup machines of the target safety system are interconnected by double-network crossover. Industry standard security communication protocols commonly include RSSP1, RSSP2 and other communication protocols. For example, the main and standby systems of the train control center and the interlocking main and standby machines establish four communication layer links through dual networks, and the security layer adopts the RSSP1 protocol. [0003] During the actual operation of the security system, the system only receives the data of the main system, and the backup system is u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/08B61L27/00
CPCH04L41/0663H04L41/145H04L67/1095B61L27/70
Inventor 兰青辉李海海陈晓轩郑琼郭延霞
Owner CASCO SIGNAL
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