Social Geospatial Framework Based Geocoding

With the extensive application of digital city construction scale and the wisdom of the city and location-based services platform continues to expand, people on the accuracy of the location information of urban space is also increasing. Traditional urban positioning method, based on that location address names, although in some extent to meet the demands of daily life, but because of its own shortcomings geocoded data, such as the placement of the house number is too subtle, POI change frequently difficult to maintain iconic buildings positioned too broad and too vague place names and boundaries, leading to low positioning accuracy, poor reliability. Therefore, this paper addresses by drawing of names of geographical location encoding method, the establishment of social geospatial framework for multi-source, multi-dimensional expression of the position of the urban space, to make up for deficiencies address of names positioning method to solve the problem of urban spatial orientation. Social geospatial framework is the inheritance and development of traditional geospatial framework, which features selected cities geographic features and social attribute structure, and it’s associated with the spatial coordinates, by way of geocoding precise spatial location of the city to express geographical entities. In addition, due to social geospatial framework for the extraction of high efficiency, high precision characteristics of geographic features and city social attribute structure, and information technology and space, thereby improving the ability of urban spatial analysis and decision-making applications.Social Geospatial Framework has two important aspects: First, how to design a framework based geospatial reference point; the second is how reasonable division of the city geospatial framework grid system. Firstly, the domestic and international geocoding model analysis and research, specifically discussed the feasibility of geocoding, combined Baoji digital city management project, the use of geocoding technology to complete a preliminary exploration of social geospatial framework, the establishment of social geography model space frame to achieve the city’s urban character of geographic features and social structure of the space of the property as well as a new model of urban positioning.Thesis in the research process, the content and the results obtained mainly to complete the following:(1) Based on the establishment of a geospatial framework in line with the characteristics of the city,this study study domestic and foreign major research geocoding model,which is geospatial framework based on the reference point and the grid system. then this study made reference to the theory of its standardized geocoding.(2) The reference point for street elements geospatial framework,this study use spatial analysis method, argumentation the street range of geographic features for locating and positioning accuracy of the reference datum. By correlation analysis,the distribution density of lights reflecting the population Distribution density, etc.(3) Through research, Baoji City Administrative Region, street, community and unit meshes were divided and made normative description of its corresponding geocoding.(4) With the use of the C# programming language, calling GMap.NET related controls in Windows Forms and WPF environments to achieve street location, geocoding and map display functions through Baidu map.(5) Finally, this study using the C# programming language, called Arc Engine related components and libraries to develop a grid system to achieve the positioning module. Including location query, data display.