车辆监控数据仓库中时空立方体数据模型的设计与实现  

A Grid-Time-indexed Cube Model for Spatiotemporal Data Warehouse of Vehicle Supervision

作　　者：胡继华[1] 程智锋[1] 詹承志[1] 唐巍 无 

机构地区：[1]中山大学工学院智能交通中心,广州市510275 [2]广东省智能交通系统重点实验室,广州市510006

出　　处：《武汉大学学报（信息科学版）》2013年第1期78-81,共4页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金资助项目(40971098);广东省2011年度安全生产专项资金资助项目(2011-118)

摘　　要：分析了车辆监控数据和应用的特点,设计了车辆监控的时空索引机制和车辆监控数据仓库。利用广东省重点车辆监控数据实现了车辆监控数据仓库,并与传统数据库管理方式的效率进行对比分析表明,设计的时空数据仓库能够满足海量车辆监控数据管理和分析的要求。Immense amounts of spatiotemporal data generated by vehicle supervision can＇t be efficiently managed by ordinary databases,due mainly to long query response.This paper proposes a new approach called grid-time-indexed cube,which is a spatial grid indexed,adaptive cube-based and trajectory supported for spatiotemporal data warehouses.Through the extensive performance studies based on spatiotemporal data from main vehicle supervision system of Guangdong province,we observed that grid-time-indexed cube achieved higher query performance than ordinary data storage technologies,under various operational conditions,and it was easily applicable in practice and compatible with ordinary databases.

关 键 词：时空立方体 数据仓库 车辆监控 双向链表 

分 类 号：P208[天文地球—地图制图学与地理信息工程]