The Improvement And Realization Of Client Simulation Software For The High Speed Train Digital Simulation Platform

With the rapid development of science and technology, computer simulation technology is widely used in national defense, industry, transportation, Internet of Things, education and other fields, in which distributed simulation is one of the most common simulation modes.High speed train digital simulation platform is a distributed computing architecture based on distributed systems.The user can set the simulation parameters through the free organization coupling simulation model,and conveniently set or change the calculation model,calculation conditions is generated and submitted to the distributed simulation system,and the simulation results are graphically displayed.A variety of application tests are done in the actual operation,with a strong visualization and versatility.However, the relatively scattering modules and the single function,results in a relatively low degree of integration,meanwhile there are still many deficiencies:First, graphical modeling subsystem, computing conditions and monitoring subsystem are independent of each other, poor visualization of user interface, lack of integrated interactive features.Second, permissions cannot be dynamically assigned and updated, role assignments and operational permissions are not clear, which reduces the security of the platform.Third, the management of projects and conditions and the configuration of the conditions'simulation parameters is not flexible.Fourth, the graphical display of the simulation results is not closely related to the simulation modules of the conditions.Taking the high speed train digital simulation platform as the research background,considered the above problems, a generic client simulation software based on the oracle database server is designed, in which integrated modeling construction, conditions simulation,data display are included, all these functions come from the original platform but improved.The main interface of the client software is redesigned,the multi-view way is used to realize the function integration, and the convenience of the user interaction is improved. The integrated simulation software sets the attribute of the module and the line based on the original simulation model, improves the management mode of the original model and condition, which improves the flexibility of the configuration parameters and the versatility of the platform;The monitoring methods is improved,which improves the visualization of the platform;at the same time the user's rights management functions are added to improve the security of the platform;Final tests imply that the integration of the simulation platform clients are achieved.First, the background and significance of the research for the simulation software,research status at home and abroad and structure of thesis are introduced; Second the present status and existing problems of the original graphical modeling, the management part of the calculation condition and the monitoring subsystem are analyzed;Demands of the user's rights management are discussed.Based on these,the improvement section of the above three systems and the user rights management are designed in details;At last, function test and analysis of the results have been made, meanwhile a summary and prospect of the whole work have been made, the shortcomings of the simulation software are analyzed, the next research work are pointed out.