Design And Implementation Of Integrated Simulation Platform For Near Space Vehicle TT&C

TT&C system is the basic guarantee of the near space vehicle to perform tasks,taking into account the costs and difficulties of the near space vehicle flight test,theoretical simulation and calculation is helpful to the efficiency study before flight test.However,the study on near space vehicle TT&C field disciplines involved,interdisciplinary overlapped,multidisciplinary simulation software show serious fragmentation,low integration,poor flexibility,and simulation results are not graphic and specific enough,therefore the study on the simulation software of various disciplines integrated into a simulation platform,has great significance for researchers.In order to solve the problems of TT&C simulation for near space vehicle,this paper designs and implements an integrated simulation platform.In the distributed simulation at the same time,the platform efforts to solve the problems like software integration,task scheduling and data management etc.and combined with the virtual scene simulation technology,visually reconstructions the near space 3D scene.This paper provides an efficient solution for near space vehicle TT&C simulation for researchers.Firstly,according to the situations and the problems that researchers have encountered in near space simulation study,a detailed requirement analysis including functional requirements and non-functional requirements is made,and design constraints on the platform explained.Secondly,according to the target of the platform design,a generic simulation model called Software Bus-Conponents simulation model is proposed in this paper,it can well solve the problems of software integration in large-scale simulation system.Based on this simulation model,combined with the overall requirements of the platform,this paper designs overall structure of the platform in three major aspects: preliminary architecture,layered architecture and physical structure,also gives the appropriate solutions of key problems existing in the platform design including task scheduling and data management etc.Thirdly,by putting forward a simulation system development method based on Software Bus-Components simulation model,reduces the difficulty of development,to achieve a rapid development of simulation component,software bus,main controller and GUI.Finally,this paper describes platform' deployment process in a real hardware and software environment,and introduces the test of the platform from two aspects: function test and performance test,the test results show that the function and performance of the platform are in line with expectations,to meet the design goal and the overall requirements of the platform.This paper designs and implements integrated simulation platform based on Component-Software Bus simulation model,and the platform uses a low coupling architecture,simulation software does not need too many modifications can be integrated into the platform,to ensure a good expansibility and maintainability.By designing a reasonable task scheduling algorithm and a reliable data management strategy,the platform can improve the efficiency of distributed simulation computing and reduce the redundancy of simulation data.In addition,the Software Bus-Components simulation model proposed in this paper is universal,so it can be applied to other large-scale simulation systems.