Abstract
Vehicle Management System (VMS) is onboard real-time network, which ensures the flight safety and economy by scheduling and managing the onboard resources. With the help of computers, local area network (LAN), simulation software and real-time operation system, we build a distributed computer simulation platform to simulate this onboard network. In this paper, we present a Simulink/RTX/Reflective memory card-based design solution for VMS distributed simulation platform, which is discussed at length in the two aspects of software design and hardware network establishment. We use the Rapid Control Prototyping (RCP) solution to model VMS in Simulink and generate real-time C code for RTX operation system. We realize the inter-process communication (IPC) and synchronization by shared memory mechanism. The reflective memory (RFM) is used to build a network for communication and synchronization among computer cluster. We test and validate this system by simulating the whole flight process of an airfreighter with real aerodynamic parameters. The simulation results show every module in this simulation system works normally. It meets the engineering need in practice.
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