基于移動GIS的鐵路野外辦公系統(tǒng)研究與實現(xiàn)
[Abstract]:In the process of traditional railway planning field operation, workers often use paper records to complete the related work, which has some shortcomings, such as low degree of informatization, low work efficiency and so on. Mobile GIS can solve the above problems very well. Therefore, by consulting the domestic and foreign papers, this paper understands the development course and present situation of mobile GIS, and designs and implements the railway field data acquisition system based on mobile GIS based on the internal mobile GIS project of the first Survey and Design Institute of China Railway. The following are the main research contents of this paper: (1) the paper clarifies the user requirements in the business, and designs the system on this basis. The main functions are as follows: first of all, the system supports the scaling and roaming of the map and other basic functions. This function mainly satisfies the user to realize the browsing and viewing of the overall outline and specific details of the map. Secondly, the system can locate the position of the staff in real time and play back the movement track of the staff. The real-time positioning function is mainly used for the user to establish their own real-time position, and the trajectory playback function is mainly used to determine whether the staff action trajectory is within the specified range. Finally, the system supports a simple data acquisition function, which is mainly used for the collection and preservation of related data of field personnel. (2) the principle of Mercator and Gusk-Luger projection algorithm in GIS system is analyzed. The organization of offline map data in Android equipment is studied. In this paper, the custom storage of secure map data on mobile terminal is realized in binary form. (3) the splicing algorithm of tile map is studied and calculated in this paper. The algorithm is applied to the program to realize the splicing of tile map. Through the research of this paper, a railway field data acquisition system based on mobile GIS is constructed, which improves the information degree and efficiency of railway field work.
【學位授予單位】:長安大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:P208;U212
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