实时数据库系统中数据压缩技术的研究  

Study on Data Compression Technology in the Real-time Database System

作　　者：关中辉[1] 贺玉凯[2] 杨徽[2] 

机构地区：[1]辽宁工程技术大学,辽宁阜新123000 [2]中国矿业大学,北京100083

出　　处：《现代电子技术》2006年第12期85-87,共3页Modern Electronics Technique

摘　　要：实时数据库系统是对时间要求非常高的系统,而企业所集成的数据采集点数通常有几千到十几万个,数据采集时间间隔达秒级,数据量很大,因而数据压缩技术在实时数据库系统中尤为重要。采用基于变化率的矢量压缩和选择适当的动态压缩偏差参数使数据压缩率明显提高,有力地保证了实时数据库系统的时间特性,给企业的生产和管理带来很大的变化,提高了企业的生产率和经济效益。Real - time Database System （RTDBS） is the one that must satisfy strict timing constraints. The sampling point number integrated by a company is usually from thousands to hundreds of thousands. Dam sampling time space ranks up to seconds and data volume is tremendous. So data compression technology is especially important in RTDBS. Adopting vector compression based on variational rate and choosing adequate dynamic compression deflection parameter enable data compression rate to be increased obviously. It strongly guarantees the time property of RTDBS and brings the production and management of a company great change. It raises the productivity and economic efficiency of a company.

关 键 词：实时数据库 数据压缩 动态参数 矢量压缩 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]