The Study, Based On The Rtx Real-time Virtual Device Software

Along with the development of modern simulation system science, the practicality simulation is gradual substituted by the virtual simulation based on computer system. For the sake of satisfy the equivalent between virtual simulation effects and practicality simulation results, the computer system is requested to have definite capability of real response.This items "The research about virtual equipment software based on RTX", the purpose is discuss the demand of real time in the virtual equipment simulation and control system. Make the system of certain model UAV ground control unit as a context. First introduce the system composing of UAV ground control unit, as well as the design antilogy and realization of fly control platform software in UAV ground control unit. We also adopt the production of Ardence Inc.-RTX, so we can advance the reality of Windows operating system. Meanwhile we actualize the communications between each part of system and the data collection in tne experimentation system based on RTX. In the experimentation of hardware-in-loop simulation, the stabilization of system is great and the Real-time is satisfying design request. The paper's content as follow:Firstly, with the struct of certain model UAV ground control unit, the request for real-time in virtual device and control system is discussed and then some key technology is referred to.The paper selects ethernet network and RTX for the resolvent of real-time.Secondly, the paper selects Labwindows/CVI to design system and software, selects moduling method to develop ground control software and selects GL Studio to develop virtual instrument.Thirdly, in the semi-physical simulation, the protocol of TCP-IP can shows its advantage during the data comunication.Lastly, in the data colllection system, RTX supplies high speed and veracious response time, optimizes windows interrupt service thread and I/O port transfering mechanism and enhances the real-time performance of the data collection card.