一种基于特征－语义的时空数据组织方法

摘要

在全面研究时空数据模型理论及构建方法的基础上，本文采用面向特征的数据模型构建方法结合时空语义思想，并引入无缝时空理念，探讨了一种基于特征的无缝时空数据模型构建方法。该模型将地理时空过程特征抽象为特征对象、特征事件、特征过程，不仅能够实现地理实体的空间数据组织及复杂拓扑分析，而且，通过描述特征事件、特征过程及其相互关系实现时空语义表达，进而实现海量信息存储以及高层次时空分析，也为通用性时空数据模型的构建提供了一种新思路。%On the basis of a comprehensive study of the theory and construction method of spatio -temporal data model, in this paper, a feature oriented data model construction method is combined with temporal and spatial semantics, and associating with seamless spa-tio-temporal concept to discuss a seamless spatio-temporal data model construction method based on feature.The data model de-scribes the spatial-temporal process as feature objects, feature events and feature processes.It not only can realize the spatial data management and complex topological relation of geographical entity but realize the expressions of spatio-temporal semantics by descri-bing feature events, feature processes and the relation of them to accomplish massive information storage and temporal-spatial analy-sis of high levels.And it will provide new ideas for the construction of general spatio-temporal data model.