Study On Real Time Simulation Technology Based On RTX And Reflective Memory Network

Computer simulation technology has been widely used due to its advantages,such as easy implementation,high reliability,resuability,etc.In early stage,most simulation was implemented in the form of a stand-alone computer system.However,the development of computer hardware and software technology expedited the emergency of distributed simulation.Compared with stand-alone simulation,distributed simulation has the advantages of high efficiency and fault tolerance,and its adaption to the geographical distribution.With the growing application requirements,real-time simulation also entered the distributed era.The topic " Study on Real Time Simulation Technology Based on RTX and Reflective Memory Network" studied the characteristics of Windows system's real-time's features and RTX works,and then designed and implemented the real-time simulation system based on RTX.Then,The real time simulation system is realized by introducing reflective memory real-time communication network,and the main research contents of this paper are:Firstly analyzes the shortcomings of the windows operating system in real time,study of the principle of RTX in-depth,and contrast the RTX and windows in real time difference.By analyzing the advantages and disadvantages of centralized scheduling,distributed scheduling and hierarchical scheduling,the centralized scheduling strategy is chosen as the real-time simulation based on the practical application,finally,design the real time scheduling algorithm based on RTX high precision timer based on the characteristics of RTX and real-time simulation system.Secondly it analyzed the disadvantage of Ethernet in real time communication.Use the reflective memory network as a real-time simulation system of communication network,studies the real-time characteristic and the principle of reflective memory network,this paper expounds the reflection of the memory card register instructions and driver design.Then analysis of Ethernet TCP/IP communication network with four layers in an important communication protocol implementation principle,In this paper I design reflective memory network communication protocol based on TCP/IP four layer communication protocol.The communication protocol finally proved through examples of reflective memory network communication protocol of high speed,real time,portability and convenience,it is concluded that the conclusion is suitable for the real-time simulation system completely.Finally,by building a distributed real-time simulation system and simulation of specific application examples,test and analysis of the simulation results data,validation of real-time simulation system based on RTX and reflective memory network is correct,real-time,efficient and practical advantages.