Spatio-temporal topological relation modeling of moving objects

Researches on spatio-temporal characteristics of moving objects gained more and more attentions because of the increasing application demands. Spatio-temporal topological relation, one of the main topics about moving objects, contributes much to such researches on data model, index and query, etc. Aimed to planar moving objects in Euclidean space, a time-sliced date model is presented firstly. Then based on the point-set theory, a qualitative model about spatio-temporal topological relations between moving objects is defined. The temporal relation and spatial relation are expressed by the 9-Intersection model separately, and then the sptio-temporal topological relation is defined as their combination considering the dynamic behavior of moving objects. To compute the spatio-temporal topological relations, the validation, computability and computation rules about this model are given as well. This model can aggregately express the spatial distribution and temporal evolvement of moving objects, especially the dynamic characteristics. And it will conduce to researches about moving objects databases and spatio-temporal query.EI04468-4734