Complex G~4I System Data Integration And Cloud Computing Key Technology Research

As information technology, especially the wide application of3S technology, promoting progressive types of earth science data to achieve a modern, digital and networking. Countries in geological mining, geology and geography mapping, land resources and the construction of marine exploration and other fields has become the basis for a national database of hundreds of Earth Sciences, completion of various research reports hundreds of thousands of copies, has accumulated vast amounts of earth science data. Since the various earth science data has a diversified, multi-scale, multi-resolution, multi-disciplinary, multi-type, multi-standard and other characteristics that make establishing various fields geospatial database exists great difficulty, and has built the vast types of geoscience databases most are relatively independent of the operating status, data integration applications, integration and analysis of the low level of seriously restricting the types of mineral resources prediction work smoothly. Therefore, the use of data integration and data fusion technology to the existing geospatial data for scientific operations and management is the study of the field of hot issues of spatial data, but also the content of this paper.Various existing GIS system integration can not be effectively integrated multi-local or nationwide (source) for earth science data, and because the various geoscience data has a mass dispersion of the characteristics of the existing stand-alone, based on a local area network or the Internet GIS systems as well as various kinds of mineral resources prediction and evaluation system is unable to provide fast, efficient, stable and reliable computing resources and manage them. Therefore, in order to better accomplish massive geoscience data, data storage, data integration, fusion, data mining and mineral prediction and evaluation, this article will field of information technology the latest cloud computing technologies into existing geoscience G4I system was constructed based on geo G4I systematic framework for cloud computing service system architecture, careful study of cloud computing, distributed data storage, network computing resource integration and scheduling, and parallel computing, and other key technologies.This paper studies done in Jilin University has successfully developed with independent intellectual property rights of "Earth Science G4I System", based on the multi-source field of earth science, heterogeneous, distributed and other characteristics of geospatial data for the study. Discussion and research data integration technology and cloud computing technology in geoscience G4I System.In this paper, the content and results are as follows:1.This paper presents geo spatial data management based on geo G4I, and geospatial data integration and geospatial data fusion methods.2.This paper presents a geospatial database interoperability technologies based on geo G4I.3.For large-scale data, information and computing resources characteristics and data processing requirements, this article uses cloud computing technology to network the various available computer resources for the efficient integration of the computing cluster, using the Hadoop framework and MapReduce programming model, geospatial big data processing tasks in a distributed approach, broken down into a number of sub-tasks, a large number in the calculation of the cluster compute nodes for parallel processing and computing to enhance geospatial large data processing capabilities. Cloud computing platform geoscience data integration and system integration, geospatial modeling (spatial statistical modeling and spatial visualization modeling), earth science process simulation and prediction and evaluation of mineral resources provides a powerful technical support.Complex Geo G4I systems, man-machine interactive operation mode inversion of gravity and magnetic geophysical interpretation and artificial intelligence are combined in a cloud computing environment to perform system calculations, analysis and storage tasks. Most of the techniques can represent our current information in the field of geosciences cutting-edge technology, to meet the current information in the field of geosciences vast majority of technical requirements.