Research And Application Of Geographical Name Census Technology In Beijing

It has been more than 30 years since the reform and opening up of our country tocarry out the first national Toponymic census.Nowadays,the social economy of our country has undergone tremendous changes in the structure,and the changes in the economic structure have also led to major changes in the cause of Toponymic census.Under the leadership of the party and the State Council,provinces,cities and autonomous regions have launched the second national Toponymic census project successively,the ultimate goal is to investigate the actual situation of Chinese toponyms in the whole country,and build a complete system A Toponymic database system networked among provinces and cities in China.However,due to the development of the times,the technical level of Toponymic census and the method of establishing Toponymic database have also changed,and the cost of time,material resources and financial resources consumed by different survey methods are also different.Now,there are still some deficiencies in the research on the field survey of the second National Toponymic census and the method of establishing Toponymic database in China,so in order to make Toponymic census possible In order to complete the Toponymic census more efficiently,it is necessary to make an in-depth analysis and Research on the Toponymic census and database building methods.Taking the second national Toponymic census project of Beijing as an example,this paper analyzes and studies the basic process of Toponymic census.The process of Toponymic census includes four links: collecting Toponymic data,collecting field work,editing and organizing,and establishing Toponymic database.According to the characteristics of the methods used in "one common" of each link(full vector method,manual entry method,and paper-based drawing method)This paper improves and optimizes the old methods based on the current scientific and technological level and the actual situation of Beijing,and forms a new census method(combined with dataupdate method,3S integrated collection method and Script Compilation Method),and makes a comparative analysis between the new method and the old method,demonstrating the applicability of the new method.The main achievements of this paper are as follows:1.Using RS technology to make field survey base map based on high-definition remote sensing image.Compared with the traditional field survey,the operators can interpret the geographical category in a graphic way indoors,which makes the geographical name information more abundant and reduces a lot of field work;2.Research on the real-time collection method of multimedia information,such as coordinates of place names,photos,recording,video recording etc.,by using of the tablet computer with special positioning function and multimedia function.In this way,the traditional paper drawing work is replaced by tablet computer work,which saves a lot of time and energy due to the calculation of coordinates;3.Research on the integration of field survey data and the editing method of toponymy entries based on ArcGIS platform.Using script compiling method to edit the information of toponymy entries,digitizing the collected toponymy information and overlaying the toponymy information extracted from it with remote sensing image can realize the visualization of toponymy information,so as to facilitate the user to search and retrieve the toponymy information.4.Research on database construction method based on metadata and super map.Integrate spatial data with non spatial data to realize real C / s and B / S structure.Compared with the old method,the new method saves nearly 50% of the time,reduces half of the cost and doubles the operation efficiency of the old method.After using the new method,not only the quality of the census results is guaranteed,but also the results are more colorful in content and form.The application of the new method can promote the implementation of Toponymic census project more effectively,more scientifically and more quickly.