A Business-Oriented Space Environment Model Integration Platform Based On BS Architecture

Space environment affects the security of space technology system,which is an important factor to control the high reliability and long life of spacecraft.With the emergence of various high-tech activities in space activities,the demand for space environmental protection system is becoming more and more urgent,and the demand for security is increasing day by day.Therefore,it is necessary to break through the forecasting and guaranteeing methods which mainly rely on artificial experience,and establish an objective space environment model forecasting system for business application.The space environment model is based on a large number of space environmental monitoring data,which is to scientifically model and calculate the monitoring data,and finally obtain the corresponding physical parameters of the space environment.With the increase of monitoring data,the space environment research is deepening,and the number and types of space environment patterns are increasing.And the duplication of the new research model for technical transformation and integration,both to increase the mode of integration workload,and not easy to model the unified management.Therefore,it is necessary to establish the Space Environment Model Integration Platform(SEMIP),which can realize the standard integration,management and operation control of the space environment based on the analysis of the technology transformation characteristics of the space environment model,and using the computer technology,and lay the technical foundation for space environment forecast protection.The main work of this paper is as follows:(1)Based on summarizing the similarities and differences of the space transformation of space environment,this paper proposes an integrated template design of space environment model based on XML.The template includes the modeBASE template,the mode PROGRAM template,the mode INPUT template and the mode OUTPUT template.The four sub-templates are used for patterning the basic information of the mode,the program information,the input file information and the output file information,and laying the foundation for no-coding integration.(2)In this paper,the physical environment of space environment model integration is analyzed and summarized,and an integrated model of space environment model based on Petri net is proposed and applied to SEMIP of space environment model integrated platform.The Petri net is improved by "tokenizing" the token in the integrated model and the integrated execution process is controlled according to the token attribute setting to ensure that the steps in the mode of business operation are done in sequence.(3)In this paper,task scheduling and cluster load balancing algorithm are studied.Combined with the characteristics of space environment model task,an optimal load algorithm based on hybrid weighting is proposed to solve the problem of the distribution of mode running tasks in server cluster.(4)The SEMIP platform designed in this paper can realize the integration and management of the non-coding standard of the space environment model.By validating the integration of multiple modes in the platform,the validity of the automatic operation of the mode cycle is verified,and the feasibility of the optimal load algorithm based on hybrid weighting is verified by running the task distribution experiment in the mode of the server cluster.