基于时间切片模型的设施农业时空数据研究

Spatio-temporal data of facility agriculture based on time slice model

为实现北京市设施农业信息管理系统由静态GIS向时态GIS的转变,解决设施农业时空数据动态存储与表达的问题,针对设施农业数据的时空动态变化特征与情况,结合时间切片模型的思想与方法,提出了设施农业时空数据模型,以实现设施农业时空数据的重组与管理.阐述了设施农业时空数据的组织、存储结构与查询方法.研究表明,设施农业时空数据模型能很好地表达设施农业时空对象的空间信息、属性信息以及变化关系,为设施农业时空数据管理提供了新的思路与方法.

In order to realize the conversion of facility agricultural information management system in Beijing from static GIS to dynamic one and to solve the dynamic storage and expression of spatio-temporal data of facility agriculture, a spatio-temporal model for the facility agriculture was put forward so as to realize the data reintegration and management with regard to the spatio-temporal variation characteristics of the facility agriculture data according to the idea and method of the time slice model. The methods for the organization, storage structure and query of the spatio-temporal data of facility agriculture were discussed. A conclusion is drawn that the proposed spatio-temporal data model for the facility agriculture can give a satisfactory expression of spatial information, attribute information and variation relationship of its spatio-tempoml objects and provide a completely new way for the spatio-temporal data management of the facility agriculture.