Host and standby data synchronization method for railway scheduling centralization system
A data synchronization and centralized scheduling technology, applied in the field of data processing, can solve the problems of low reliability of the same communication channel, synchronization impact, and neglect of the needs of different data synchronization functions, so as to reduce the amount of data synchronization, avoid mutual interference, and improve reliability. Effects on sex and safety
Active Publication Date: 2018-07-20
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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[0003] The existing master-standby dual-machine data synchronization technology performs data synchronization through the same communication channel, and all data needs to be synchronized. At the same time, only the master machine performs logic operations and completes information interaction tasks with other machines. The channel remains synchronized with the host, which ignores the need for synchronization functions of different data, and the reliability of using the same communication channel is low. When the channel fails, all synchronizations are affected
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[0018] The present invention is a data synchronization method and system for master and standby machines used in a centralized CTC system for railway dispatching. The preferred embodiments of the present invention will be described in detail below.
[0019] The same program modules are running on the main machine and standby machine of the CTC system, and each program module completes different system functions, including the train number tracking module, information cache module, station display information module, route processing module, etc. The train number tracking module is used for Carry out train number tracking and checking; the station field display information module is used to receive and process the status information of the station signal equipment in real time; the information cache module is used to cache the station signal equipment status display information and train number information; the route processing module is used for Manual operation of the processi...
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The invention relates to a host and standby data synchronization method for a railway scheduling centralization system. The method comprises the steps that program modules in a host and standby are divided into the program modules which need data synchronization and the program modules which do not need data synchronization; each program module which needs data synchronization respectively buildsa communication connection channel, each host program module performs logical operation on data read by the host program module and synchronizes an operation result to the standby program module corresponding to the host program module through the corresponding channel; for the program modules which do not need data synchronization, the host program modules and the standby program modules respectively conduct operation on the data read by the host program modules and the standby program modules. According to the host and standby data synchronization method for the railway scheduling centralization system, data synchronization is conducted by adopting different modes for synchronization functional requirements of different data, the synchronization data volume is reduced, and the reliability of the system is improved.
Description
technical field [0001] The invention relates to a data synchronization method for master and standby machines used in a centralized railway dispatching system, belonging to the field of data processing. Background technique [0002] The centralized dispatching (Centralized Traffic Control, CTC) system is an important technical system for railway modernization. In order to improve the reliability and safety of the system, the key equipment of the CTC system, such as servers and autonomous machines, adopts a dual-machine redundant design. Use two machines for data backup and jointly execute the same service. Under normal circumstances, the dual-machine active and standby operation, when the main machine fails, the standby machine is upgraded to the main machine to continue to work and undertake service tasks, so that the system can automatically ensure that the system can continue to provide tasks without manual intervention, so the dual-machine data needs Synchronize to ensu...
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IPC IPC(8): H04L29/08
CPCH04L67/1095B61L19/06B61L2019/065H02J13/00016H02J13/00018H04L67/00B61L27/33H04L67/12H04L69/40H04L41/082H04L43/0817Y04S40/00Y04S40/18Y04S40/124Y02E60/00
Inventor 魏峰林峰王丽军陈建鑫刘克难赵桂敏刘珺王美红
Owner CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD