A Data Synchronization Method for Master and Standby Machines Used in Centralized Railway Dispatch System
A data synchronization and centralized scheduling technology, applied in the field of data processing, can solve the problems of ignoring the needs of different data synchronization functions, low reliability of the same communication channel, and synchronization effects, so as to reduce the amount of data synchronization and improve reliability and security. , to avoid the effect of mutual interference
Active Publication Date: 2020-02-14
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[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
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a data synchronization method for master and standby machines used in a centralized railway dispatching system. The method divides the program modules in the master and standby machines into program modules that require data synchronization and programs that do not need to perform data synchronization Module; establish a communication connection channel for each program module that needs data synchronization, and the host program module performs logic operations on the data it reads, and synchronizes the operation results to the corresponding backup program module through the channel; For the program modules that do not require data synchronization, the host program module and the backup program module perform operations on the data they read respectively. Aiming at the synchronous functional requirements of different data, the present invention adopts different ways to perform data synchronous, which reduces the amount of synchronous data and improves the reliability of the system.
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...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
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