摘要
基于通信的列车控制(CBTC)系统中区域控制器(ZC)子系统为全天候连续工作设备,处于整个系统数据交互的中心,实际工作中,ZC系统日志最高可产生达每天10 GB的数据量,给存储和转储工作带来较大压力。为此,文章基于ZC记录数据的特点,提出了一种专门针对此类数据的压缩算法,通过数据压缩以减少数据存储空间。研究结果表明,该压缩算法对ZC记录数据的压缩率在30%左右,有效提高了系统存储能力,减轻了数据转储的工作量。
Zone controller(ZC)subsystem in the communication based train control(CBTC)system is a full-time continuously working equipment,which is in the center of data interaction of the whole system.ZC system log can generate up to 10 GB data per day in operation that brings great pressure on storage and dumping.In this case,according to the characteristics of ZC record data,a software compression algorithm was proposed to compress the stored data,which aimed to reduce the space of data storage.The results show that the compression algorithm can compress data by 30%.Storage capacity of the system is effectively improved,and the workload of data dumping is also reduced.
作者
王福源
雷成健
任建新
WANG Fuyuan;LEI Chengjian;REN Jianxin(Hunan CRRC Times Signal&Communication Co.,Ltd.,Changsha,Hunan 410005,China;Hunan Vocational College of Railway Technology,Zhuzhou,Hunan 412001,China)
出处
《控制与信息技术》
2020年第3期89-92,共4页
CONTROL AND INFORMATION TECHNOLOGY
基金
湖南创新型省份建设专项(2019GK4015)。
