A method of main-standby switching of simulation system 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: 2022-07-15
CASCO SIGNAL
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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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  • A method of main-standby switching of simulation system based on railway safety communication protocol
  • A method of main-standby switching of simulation system based on railway safety communication protocol
  • A method of main-standby switching of simulation system based on railway safety communication protocol

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specific Embodiment

[0053] refer to image 3 , execute step S1, establish RSSP1 active-standby switching simulation system;

[0054] Establish different processes through S101 to simulate the main system and the backup system, A machine and B machine of the external system of RSSP1 respectively.

[0055] 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.

[0056] For the RSSP1 protocol, the security layer message sent by the external simulation system includes the master / standby and A / B machine signs.

[0057]

[0058]

[0059] In the simulation system, there can be various combinations, such as A main machine, B machine backup, or B main machine, A machine backup;

[0060] The system that is started first is the main system. In this example, machine A is set as the main system, and machine B is set as the standby system;

[0061] Through step S2: writing an automatic or manual ...

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Abstract

The invention relates to a method for switching between main and standby of a simulation system based on a railway safety communication protocol, comprising the following steps: step S1: initializing the system, selecting a simulation protocol simulated by an external simulation system; step S2: writing an automatic switching or manual switching script, and sending Switching command; Step S3: Before executing the switching command, the master and backup systems of the simulation system need to perform data synchronization; Step S4: After the master system and the backup system of the simulation system receive the switching command, confirm that the master and backup systems have been synchronized at the same time. The role of the user is changed to the standby system or the main system respectively; step S5 : record the network information in the switching process. Compared with the prior art, the present invention has the advantages of solving the problems of safety communication interruption and application data interruption caused by switching between two machines of the safety communication protocol.

Description

technical field [0001] The invention relates to a main-standby switching method of a railway signal system, in particular to a main-standby switching method of a simulation system based on a railway safety communication protocol. Background technique [0002] In the application of railway signal system safety communication, the main and backup machines of the local system and the main and backup machines of the target safety system are interconnected by double network. Common industry-standard security communication protocols 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 4 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 used as a hot backup. When an er...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L41/0663H04L41/14H04L67/1095B61L27/70
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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