Research On Integration Of Multi-source Data Of Mobile GIS

The geographic information system (GIS) technology,which has been widely used in many aspects of life and working, at the same time, along with the rapid development of mobile Internet and the concept of "Internet+" proposed by the country, is bringing a great impact on a variety of professional fields.mobile GIS which generated by GIS and the mobile Internet has become the GIS new application area. Spatial data as the core of GIS,so the design and use of GIS’s first step is to obtain the required spatial data according to the function of the system. Mobile GIS in the use of the process often have different data sources, this paper makes a deep research on the integration of multi-source data based on summarizing the research status of multi source data integration method and current situation of integrated research,and to design the technology framework of the integration of multi-source data for the online data and the local vector data respectively. The main research contents are as follows:Firstly, Introduce the background of mobile GIS data integration research and practical significance, and to analyze the development status and trend of the mobile GIS data integration at home and abroad。Secondly, Study on the composition of multi-source data of mobile GIS, and on this basis, the overall architecture of the integration of online data and multi-source local vector data is designed.then a data integration method for the unified model interface of online data integration is presented.Thirdly, The data characteristics of online data and multi-source local vector data are deeply studied.Bringing about the design of a detailed technical architecture for data integration based on this basis, For online data integration design of the unified online data interface, can be better achieve the integration of online data access, achieving the process of data format conversion, projection and vector data of the tile processing in the process of multi source local vector data integration,and complete the local vector data of the mobile terminal of the integrated display design.Finally,To implement the integration system of online data and multi-source local vector data respectively.