| 基态修正时空数据模型的扩展与时空查询方法的研究 |
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| 引用本文： | 倪建华,雷能忠.基态修正时空数据模型的扩展与时空查询方法的研究[J].皖西学院学报,2011,27(5):112-115. |
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| 作者姓名： | 倪建华 雷能忠 |
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| 作者单位： | 皖西学院资源环境与旅游管理学院,安徽六安,237012 |
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| 基金项目： | 六安市定向委托皖西学院市级研究项目资助，安徽省人文地理学省级重点学科 |
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| 摘 要： | 分析了几种典型的时空数据模型在实际应用中面临的问题,认为在时态GIS应用领域中,采用扩展的基态修正模型较为适宜。提出了采用基态库和历史库存储时空数据,并设计了该时空数据库的结构定义方法。详细阐述了任意时刻快照数据的查询方法。最后以实际模拟的空间数据为例,对提出的方法进行了实验,验证了该方法的合理性与可行性。
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| 关 键 词： | 时空数据模型 基态修正 基态库 历史库 时空查询 |
The Extension of Spatial-temporal Data Model of Base State with Amendments and the Method of Spatial-temporal Query |
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| NI Jian-hua,LEI Neng-zhong.The Extension of Spatial-temporal Data Model of Base State with Amendments and the Method of Spatial-temporal Query[J].Journal of Wanxi University,2011,27(5):112-115. |
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| Authors: | NI Jian-hua LEI Neng-zhong |
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| Institution: | NI Jian-hua,LEI Neng-zhong(College of Resources Environment and Tourism Management,West Anhui University,Lu'an 237012,China) |
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| Abstract: | By analyzing the problems of several typical spatial-temporal data models confronted in the application,the authors hold the view that the expanding method of spatial-temporal data model of base state with amendments is thought suitable for the spatial-temporal field of GIS.Base state database and history database are adopted to store spatial-temporal data.The definition of the structure of spatial-temporal database is designed as well.And then the query of snapshot at any time is formulated in detail.Finally,experimental results with the practical and simulated data have proved the feasibility and reasonability of the approach presented in this paper. |
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| Keywords: | spatial-temporal data model base state with amendments base state database history database spatial-temporal query |
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