RTX实时系统在半实物仿真中的应用

Application of Real-Time System Based on RTX For HL Simulation

摘要:

文中介绍了一种应用于红外制导体制半实物仿真系统中的通信接口设计方法,此方法针对以往采用的Windows系统通信不够实时、定时不够稳定等缺点,提出了一种基于Windows+RTX的仿真应用架构,通过增加RTX实时扩展子系统,使得仿真系统的实时性和开发效率得到了大幅提高；探讨了在半实物仿真中开发的要点,给出了一种通用的开发模式及流程,设计了共享内存及任务调度的编写算法共享内存机制的建立,保证了上位机MFC界面与下位机实时通信模块之间的协同工作；经试验测定,该系统应用在红外制导仿真系统回路中具有实时性高、灵活性好、稳定可靠等特点,同时降低了半实物仿真系统的复杂度。

Abstract:

In this thesis, a design scheme for real-time system in the infrared guidance hardware-in-the-loop simulation system is introduced. In the past, the Windows system is used in the HL simulation. Aiming at the disadvantage of complexity ,this paper introduce a simulation frame based on Windows+RTX, ,it improves the efficiency and capability of real time simulation through adding the RTX extension. The keys of development of HL based on RTX technology was discussed, a general develop mode and process were given, an algorithm was designed for shared memory and task dispatching.This paper developed an upper computer by using MFC interface and realized Co - Simulation between non - real - time simulation process and real - time simulation process. According to the simulation test, the system is reliable and stable, and has other excellent characteristics in the infrared guidance hardware-in-the-loop simulation system,reduces the complexity of developing HL system.