基于Petri网的时空数据模型研究
Petri Nets-based Spatio-temporal Data Model
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摘要: 将时态地理信息系统中的事件、状态、事件与状态之间的因果关系分别用Petri网的库所、变迁、有向弧进行了表达,提出了基于Petri网的时空数据模型。描述了该模型的基本思想,并在实验基础上分析了该模型的特点。Abstract: Integrating the Petri nets model and the spatiotemporal data model, this paper presents the Petri nets-based spatiotemporal data model, in which a place of Petri net represents a state of the temporal GIS, a transition represents an event, and an arc represents a kind of linkage between a state and an event. The model can represent the feature succession.
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