Flight simulation system with high instantaneity

Abstract

The invention discloses a flight simulation system with high instantaneity, which is composed of two parts of a three-axis flight simulation turntable system and an external control computer system, wherein, the position and connection relation of the three-axis flight simulation turntable system and the external control computer system is as follows: the three-axis flight simulation turntable system is an actuating mechanism of a physical effect; and the external control computer system is a command sender of the physical effect; the external control computer system transmits the stimulated gesture result to the three-axis flight simulation turntable system through a reflected optical network; and the three-axis flight simulation turntable system carries out real-time gesture response. The five advantages of the flight simulation system of the invention are as follows: Matlab / Simulink is utilized to establish a stimulation model; a CPCI bus type is adopted in computer hardware, a fiber switch is utilized to build a reflection memory optical network; an interrupt response mechanism is adopted in the communication of the stimulation and the turntable system through the optical network, and AppSim stimulation software is used. The flight simulation system has practical value and wide application prospect in the technical fields of flight control and simulation.

Description

(1) Technical field [0001] The present invention relates to the structure of the aircraft flight attitude ground hardware-in-the-loop simulation system, and the important physical effect equipment and communication expansion interface in the system; especially relates to a flight simulation system with high real-time performance, which is applicable to the aircraft ground flight attitude hardware-in-the-loop The simulation test and the whole system ground test belong to the technical field of flight control and simulation. (2) Background technology [0002] The ground hardware-in-the-loop simulation technology of aircraft has important engineering significance in the design of aircraft system and the entire research and development process, and has been widely used in the aerospace field. A complete closed-loop hardware-in-the-loop simulation system is mainly composed of a simulation computer, physical effect devices and interface devices, among which physical benefit device...

AI Technical Summary

Problems solved by technology

The general simulation system is limited by the system hardware structure and communication interface bandwidth, and the simulation cycle is mostly above 5ms. The delay caused by this has a great impact on the flight simulation test effect with high real-time requirements.

Some simulation systems use a dual-port RAM card to communicate with the simulation computer to realize the external control mode. Although the speed of the hardware is improved, due to the complexity of the system configuration, it cannot meet the requirements for various simulation objects, various physical effect devices and visual effects in practical applications. Scene simulation function upgrade and expansion requirements

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