| 实时数据库系统中数据压缩技术的研究 |
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| 引用本文： | 关中辉,贺玉凯,杨徽.实时数据库系统中数据压缩技术的研究[J].现代电子技术,2006,29(12):85-87. |
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| 作者姓名： | 关中辉 贺玉凯 杨徽 |
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| 作者单位： | 1. 辽宁工程技术大学,辽宁,阜新,123000
2. 中国矿业大学,北京,100083 |
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| 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。
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| 关 键 词： | 实时数据库 数据压缩 动态参数 矢量压缩 |
| 文章编号： | 1004-373X（2006）12-085-03 |
| 收稿时间： | 2005-12-30 |
| 修稿时间： | 2005年12月30 |
Study on Data Compression Technology in the Real-time Database System |
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| GUAN Zhonghui,HE Yukai,YANG Hui.Study on Data Compression Technology in the Real-time Database System[J].Modern Electronic Technique,2006,29(12):85-87. |
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| Authors: | GUAN Zhonghui HE Yukai YANG Hui |
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| Institution: | 1. Liaoning Technical University, Fuxin, 123000, China; 2. China University of Mining and Technology, Beijing, 100083, China |
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| Abstract: | Realtime 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.Data 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. |
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| Keywords: | real-time database data compression dynamic parameter vector compression |
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