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Published Articles >> Table of Contents >> Abstract
1999 International Symposium on Database Applications in Non-Traditional Environments (DANTE'99)
p. 302
Toward a 3D Moving Object Data Model-A Preliminary Consideration-
Yoshifumi Masunaga, Ochanomizu University
Noriko Ukai, Ochanomizu University
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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/DANTE.1999.844974
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This paper investigates a new data model for the realization of a three-dimensional (3D) moving object database system. In contrast to the traditional approach, it can deal with spatio-temporal characteristics of moving objects in the 3D space. A spatio-temporal sampling theory is introduced that enables a database system to store and manipulate all of the necessary spatio-temporal information about moving objects. The 3D moving object database consists of three kinds of relations: a set of primary relations, such as POSI, ORI, GRAD, and SHAPE, store all the essential spatio-temporal features of a single moving object; a set of built-in derived relations, such as DIR, SPEED, TRACK, DIST, MDIR, and TOPOL, store, for example, the moving direction of a single object (DIR) and the topological relation between two objects (TOPOL); and a set of user-defined relations such as BACK and FRONT with which one can issue a variety of spatio-temporal queries on moving objects. A domain relational calculus-based moving object query language named MOQL is shown.
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Citation:
Yoshifumi Masunaga, Noriko Ukai,
"Toward a 3D Moving Object Data Model-A Preliminary Consideration-,"
dante,
p. 302,
1999 International Symposium on Database Applications in Non-Traditional Environments (DANTE'99),
1999
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