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| 摘要: |
| 实时数据库(RTDB)是传统数据库技术与实时系统相结合的产物,是厂级信息监控系统(SIS)的核心.历史数据是系统定时从实时数据库中采样,保存到历史数据库中的数据,用户需要时可随时从历史数据库中访问历史数据.历史数据库包含内存历史数据库和磁盘历史数据库.内存历史数据库关注的是测点近期数据的组织方式;磁盘历史数据库管理的对象是历史数据文件和管理信息文件.对磁盘历史数据库的文件结构、缓冲区进行了描述,并详细阐述了其总体架构及重要功能模块(读/写操作、压缩、数据页存取)的实现技术. |
| 关键词: 实时数据库 内存数据库 历史数据处理 磁盘历史库 数据存储 |
| DOI： |
| 分类号:TP311.13 |
| 基金项目: |
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| Historical data processing in real-time database system |
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LU Huiming1 ZHOU Zhao2 LIAO Changbin3
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| Abstract: |
| RTDB(Real-Time DataBase) is the integration of traditional database technology and real-time system and is the core of SIS(Supervisory Information System). Historical data is the data regularly sampled from real-time database system and stored in historical database for user access. Historical database includes memory-based database and disk-based database. The former concerns the short-term data organization of sampled points while the latter manages the historical data files and management information fil... |
| Key words: real-time database main-memory database historical data processing disk historic database data storage |
