国产数据库在地铁信号系统中的应用研究  

Research on Application of Domestic Database in Metro Signal System

作　　者：彭赛荣 宋欣 郭戬 高磊 周琪 PENG Sairong;SONG Xin;GUO Jian;GAO Lei;ZHOU Qi

机构地区：[1]广州铁科智控有限公司,北京100081 [2]北京交通大学综合交通运输大数据应用技术交通运输行业重点实验室,北京100044

出　　处：《铁道通信信号》2023年第4期68-72,共5页Railway Signalling & Communication

基　　金：广州铁科智控有限公司科研课题(KYA22002)。

摘　　要：为提升地铁装备的国产化水平,逐步实现核心技术的自主可控,以国产数据库在MTC-I型基于通信的列车运行控制系统中的应用为切入点,结合既有数据库架构的特点,提出一种基于国产数据库的一主二备架构。采用基于联机Redo日志的数据实时同步技术,确保不同存储设备间数据的一致性;通过加密引擎技术,定义特殊的或更高强度的加密算法,提高数据加密的安全性;配备基于B/S架构的实时监控平台,有效提升数据库系统的智能运维水平。从可靠性、可扩展性和经济性3个方面,分析了一主两备架构的应用特性。经过正常运营标准压力测试和典型业务场景并发测试,验证了该架构在地铁信号系统中具有良好的适用性。In order to improve the localization level of metro equipment and gradually realize the independent control of core technology,the application of domestic database in the MTC-I communication based train control system is taken as the starting point for research.Combining with the characteristics of the existing database architecture,the one master and two standby architecture based on domestic database is proposed.By adopting real-time data synchronization technology based on online Redo logs,the data consistency between different storage devices is ensured.By using encryption engine technology,special or higher intensity encryption algorithms can be defined to improve the security of data encryption.By equipping with a real-time monitoring platform based on B/S architecture,the intelligent operation and maintenance level of the database system is improved effectively.From three aspects of reliability,scalability and economy,the application characteristics of the one master and two standby architecture are analyzed.After normal operation standard pressure test and typical business scenario concurrent test,results show that the architecture has good applicability in the metro signal system.

关 键 词：地铁 国产数据库 基于通信的列车运行控制系统 数据库架构 性能测试 智能运维 

分 类 号：U231.7[交通运输工程—道路与铁道工程]