| 面向BDS时空数据的多粒度时空模型构建研究 |
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| 引用本文： | 邓超,王磊,章秉川,贾宝.面向BDS时空数据的多粒度时空模型构建研究[J].全球定位系统,2019,44(6):1-6. |
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| 作者姓名： | 邓超 王磊 章秉川 贾宝 |
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| 作者单位： | 1.中国人民解放军战略支援部队信息工程大学,河南 郑州 450001 |
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| 摘 要： | 针对北斗卫星导航系统（BDS）时空数据组织管理过程中数据存储与分析困难的问题,本文面向BDS时空数据,通过分析其数据特征,引入时空粒化思想,从空间粒度、时间粒度、时空粒度三个粒度对BDS时空对象进行多粒度表达．参考面向对象和基态修正模型的方法,建立BDS多粒度时空数据模型的概念模型,提出一种BDS时空对象多粒度表达方法,并实例证明该方法可以实现BDS时空数据的组织与存储．
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| 关 键 词： | 北斗卫星导航系统 时空数据模型 多粒度 |
Research on construction of multi-granularity spatio-temporal data model based on BDS |
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| Affiliation: | 1.PLA Strategic Support Force Information Engineering University,Zhengzhou 450001,China2.The Chinese People's Armed Police Force ZheJiang Crops,Hangzhou 310016,China3.Henan Institute of Surveying and Mapping, Zhengzhou 450003, China |
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| Abstract: | Focus on the difficulty of storing and analyzing in the process of organizing and managing spatio-temporal data of BDS,this paper selects spatio-temporal data of BDS as the research object and analyses its characteristics. Idea of space-time granulation is introduced to express it from three granularities: space-granularity, time granularity and space-time granularity. According to the method of Object-Oriented and Modified models of Ground State, the conceptual model of multi-granularity spatio-temporal data of BDS are given.A method to construct multi-granularity spatio-temporal data model based on BDS is proposesed. One example proves that this method can realize the organization and management of spatial-temporal data of BDS. |
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