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Proceedings Paper

Research on the key technology of update of land survey spatial data based on embedded GIS and GPS
Author(s): Dan Chen; Yanfang Liu; Hai Yu; Yin Xia
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Paper Abstract

According to the actual needs of the second land-use survey and the PDA's characteristics of small volume and small memory, it can be analyzed that the key technology of the data collection system of field survey based on GPS-PDA is the read speed of the data. In order to enhance the speed and efficiency of the analysis of the spatial data on mobile devices, we classify the layers of spatial data; get the Layer-Grid Index by getting the different levels and blocks of the layer of spatial data; then get the R-TREE index of the spatial data objects. Different scale levels of space are used in different levels management. The grid method is used to do the block management.

Paper Details

Date Published: 16 October 2009
PDF: 6 pages
Proc. SPIE 7492, International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining, 749250 (16 October 2009); doi: 10.1117/12.838362
Show Author Affiliations
Dan Chen, Wuhan Univ. (China)
Yanfang Liu, Wuhan Univ. (China)
Hai Yu, Survey and Design Institute of Land in Wuhan (China)
Yin Xia, Wuhan Univ. (China)


Published in SPIE Proceedings Vol. 7492:
International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining
Yaolin Liu; Xinming Tang, Editor(s)

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