摘要
针对部队飞机维修部门现有飞行参数数据量大,分析和处理数据能力不足,导致海量的数据变成了信息垃圾的问题,在对飞行参数数据和数据仓库技术进行研究的基础上,结合部队飞机维修部门关心的问题,给出飞行参数数据仓库模型的设计及飞行参数数据的概念模型、逻辑模型、物理模型、元数据模型和粒度模型。对现有的物理模型进行了改良,理论上将廉价冗余磁盘阵列技术与数据仓库物理模型有机的结合,改进了存储设备的可靠性,缩短了系统的响应时间。
According to the practical problems that the departments of aircraft maintenance are faced with such as great amount of flight parameter data,andlow capability of data analysis and processing which caused numerous data to beturned into information trash, the flight parameter data warehouse model is brought up, as well as the concept model, logical model, physical model, metadata model and granularity model of flight parameters. The existing physical model was improved by combining RAID 5 technology with data warehouse physical model theory. As a result, the store device reliability was enhanced and the system response time was shortened.
出处
《现代电子技术》
2010年第8期130-133,137,共5页
Modern Electronics Technique
关键词
飞行参数
数据仓库
星型模式
物理模型
元数据模型
粒度模型
flight parameter
data warehouse
star schema
physical model
metadata model
granularity model
