16 October 2009 Research on the key technology of update of land survey spatial data based on embedded GIS and GPS
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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.
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Dan Chen, Dan Chen, Yanfang Liu, Yanfang Liu, Hai Yu, Hai Yu, Yin Xia, 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); doi: 10.1117/12.838362; https://doi.org/10.1117/12.838362
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