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车辆监控系统中时空数据模型设计与实现 预览 被引量:5

Design and implementation of spatial-temporal data model in vehicle monitor system
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摘要 针对车辆监控GIS系统中车辆对象轨迹数据变化频率较高、数据量大的特点,首先分析了当前常用的几种数据存储方法,然后在时空立方体模型基础上,提出通过切分时空立方体,形成单元时空立方体,并建立轨迹版本的建模思想。对模型的实现和基于此模型的时空查询算法进行了详细阐述。验证表明该模型能满足实际应用的需要,在减少存储和时空查询性能上有较大提高。 According to the special features -changed frequently and a large amount of datum-trajectory data in the vehicle monitor system, some methods of trajectory data storage were analyzed. Then a new data model based on space-time cube and manage data by trajectoryversion was built up. It was also described how to build this model and do some spatial-temporal query. Experiences show that this model satisfy the requirements of application. The storage is reduced and the performance of spatial-temporal query is improved.
作者 王卫京 翁敬农 樊珂 WANG Wei-jing, WENG Jing-nong, FAN Ke (School of Computer Science, Beijing University of Aeronautics and Astronautics, Beijing 100083, China)
出处 《计算机工程与设计》 CSCD 北大核心 2006年第6期 1042-1044,1051,共4页 Computer Engineering and Design
关键词 车辆监控 时空立方体 轨迹版本 空间索引 时空查询 vehicle monitor space-time cube trajectory-version spatial index spatial-temporal query
作者简介 王卫京(1977-),男,山西长治人,硕士生,研究方向为地理信息系统和空间数据库。 翁敬农(1966-),男,副教授,研究方向为地理信息系统、数据挖掘和计算机体系结构。 樊珂:男。硕士。
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