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http://dx.doi.org/10.22156/CS4SMB.2022.12.01.007

Design of Caching Scheme for Mobile Underground Geospatial Information Map System  

Kim, Yong-Tae (System Development Div., DBNtech Co., Ltd)
Kouh, Hoon-Joon (Department of Software Convergence, Kyung-in Women's University)
Publication Information
Journal of Convergence for Information Technology / v.12, no.1, 2022 , pp. 7-14 More about this Journal
Abstract
Unlike general maps, the underground geospatial Information is a system made to view underground information in a 3D shape. This system is managed by a tile maps to lighten the data. But there are various underground structures in the basement, and the structures are made of 3D data, so the data size is large. Therefore, when a client mobile program requests a tile map, the service server fetches the requested tile map from the DB server and transmits ti to the client, but there is a transmission delay time problem. In this paper, we design the tile cache method to improve the request response speed for the tile map data provided to the client in the mobile underground geospatial information system. We propose a method in which a service server predicts and prefetchs the next tile map while the client is viewing tile map, and stores the prefetching data in the memory of client mobile terminal. Then, the transmission delay time problem can be solved.
Keywords
Underground Geospatial Information Map; Tile Map; Caching; Tile Prefetching; Mobile Program;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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