Design And Implementation Of A Multi-dimensional Dynamic Visualization System Of Atmospheric Pollution Data Of A City Circle

With the tendency of multisource atmospheric environment data system systematized development,various atmospheric data source need to be synthetically displayed after fused.The multi-source data processing platform,which can only process text type,but could not adapt to the new requirements at home and abroad,that is,the processing and display of multi-source atmospheric data with different data formats.Massive new multi-source data processing platforms have emerged,such as multi-source remote sensing data processing platform.Therefore,the importance of air environment data processing function is increasingly prominent.It is necessary to strengthen the multi-source data processing and three-dimensional display function,so that the obtained and analyzed data information can be effectively used for practical research,and then provide more effective technical support for air quality improvement and air pollution prevention & control.For this purpose,the system of multi-dimensional dynamic atmospheric pollution data visualization for a city circle has been developed.Facing the characteristics of multi-dimensional dynamic visualization atmosphere system,such as multi-function,complex data,wide distribution of deployment and monitoring,a multi-level and easy to expand software architecture is designed,which includes display layer,service layer,data fusion layer,data storage layer and data processing layer from top to bottom,with good scalability and scalability.Openlayers fusion and Arc Map display technology are used to analyze the air pollutant data concretely and comprehensively,predict the development law of PM2.5 and other pollutants,dynamically observe and monitor the pollutant concentration change process in multiple time periods,and visually analyze the affected range,affected degree and dynamic trend of pollution diffusion.Using MS.NET,arcgis10.0,Java and other development tools,a new multi-dimensional dynamic visualization system with data processing,data storage,data fusion,multi-dimensional visualization,Map GIS and other functions is realized.The system has been developed according to standard of OOP software development,and has completed the system implementation and system testing,then entered the operation stage.After testing it,the system has achieved program lightweight and stability.When the amount of data processing is increased to three times of the normal situation,the consumption rate of system hardware resources is still lower than 15% and runs well.The response,load and start-up time of remote call transmission data is relatively short,which is usually less than 10 seconds under normal network conditions.As a direct standard to measure the performance of the system,the failure rate is basically lower than 1% in dozens of tests.The system has been running for two consecutive After the trial operation of the first version of the system,it has shown a good running effect,shorten the discovering time of pollution accident detection and predict some pollution source expansion problems in advance.It has a good practical application prospect.After several months without a crash,it can carry the number of concurrent conflicts of 1000 users.