Research on the key technology of update of land survey spatial data based on embedded GIS and GPS

Dan Chen; Yanfang Liu; Hai Yu; Yin Xia

doi:10.1117/12.838362

16 October 2009 Research on the key technology of update of land survey spatial data based on embedded GIS and GPS

Dan Chen, Yanfang Liu, Hai Yu, Yin Xia

Proceedings Volume 7492, International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining; 749250 (2009) https://doi.org/10.1117/12.838362
Event: International Symposium on Spatial Analysis, Spatial-temporal Data Modeling, and Data Mining, 2009, Wuhan, China

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.

Citation Download Citation

Dan Chen, Yanfang Liu, Hai Yu, and Yin Xia "Research on the key technology of update of land survey spatial data based on embedded GIS and GPS", Proc. SPIE 7492, International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining, 749250 (16 October 2009); https://doi.org/10.1117/12.838362

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