Data Visualization System For Precursor Chemicals Supervision And Management

In order to meet the application requirements of precursor chemicals supervision and management for police supervision department and the enterprise managers,this thesis finished the design and implementation of data visualization system based on the database of the Information System of Precursor Chemicals Supervision and Management.The related work mainly involves: the visualization and analysis of enterprise purchase network and enterprise transportation network based on complex network theory,and the visualization and analysis of the enterprise transportation map and enterprise alarm heat map via map data visualization and data linkage visualization.The main research work can be summarized as follows:(1)Requirement Analysis and Objective Definition of Data Visualization System.To meet the demands of precursor chemicals supervision and management for police supervision department and enterprise managers,the data source and data structure is analyzed based on understanding the related operation flow about precursor chemicals,and the objective of data visualization system is therefore determined.Finally,the required data used for visualization are sorted out.(2)Design and Implementation of Data Visualization System.In order to meet the application needs of real time interaction and high efficiency about data visualization system,we first compared and analyzed several classical data visualization programming methods,and focused on investigating the technologies about complex network and map visualization.In order to reduce the load of system developing work,to make the system more interactive,to improve the response speed,and to display more intuitively,we used the C# as the background language,introduced ASP.NET for front page designing,and applied four technologies including the JavaScript,JQuery,ECharts and D3.js for data visualization programming.Finally,we designed and implemented the data visualization system based on B/S framework.(3)Application and Analysis of Data Visualization System.The data visualization system can be applied by combing with the actual needs of the police supervision department and enterprise managers.The system can meet the needs such as enterprise trading network building,map data visualization,data linkage visualization,and so on.The application of system demonstrates that the Data Visualization System can better meet the actual needs of the police supervision department and enterprise managers about visualization of precursor chemicals supervision data.