System simulation method

A system simulation and simulation technology, applied in the field of system simulation, can solve problems such as differences in simulation analysis results, poor real-time performance, and no real-time data transmission, and achieve the effect of low complexity and high reliability

Inactive Publication Date: 2019-09-13
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual engineering, the simulation of the controlled object in the control subsystem is usually realized by a pure software static method, but this simulation method has poor real-time performance and is not connected with the actual control subsyst...

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Embodiment 1

[0033] The purpose of the present invention is to propose a system simulation platform based on the AFDX network and MATLAB. According to the remote data concentrator interface function, build the AFDX network and MATLAB simulation communication platform to realize the remote control object and the background server (upper PC) Data exchange, dynamic simulation and analysis.

[0034] The technical scheme of the present invention:

[0035] 1. Build AFDX communication system:

[0036] The AFDX communication system is the interface component between the AFDX network and the avionics system. It has the function of sending and receiving data. It can perform virtual link (VL) isolation, sender traffic shaping, receiver redundant data management, and receiver VL label Operations such as identification and integrity checking. The AFDX network end system is connected through the AFDX switch to provide high-speed and reliable data communication for each host.

[0037] The end system is a very ...

Embodiment 2

[0052] The specific implementation method of the present invention is as follows:

[0053] 1. In the VC++ development environment, in the upper application of the server, generate the AFDX communication port configuration table by loading the configuration function initCfg(), and then call afdxCreateSPortPC() to create the sampling port, the input parameter is the port number, and the output parameter is the port Mark, complete the creation of AFDX communication port;

[0054] 2. Use the network programming interface Socket provided by Windows to establish a server UDP port. The specific usage method is: in the upper-level application, first initialize the Socket, after the initialization is successful, call socket() to establish a network socket, and then call bind() to bind the Socket with the server IP and UDP port, and also A driver must be built to establish the connection between the two parties; when the uplink needs to communicate, the server UDP port receives the remote c...

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Abstract

The invention provides a system simulation method which is applied to a data transmission end, and the method comprises: the data transmission end generating an AFDX communication port configuration table through loading a configuration function in an upper application layer of a server side, then creating a sampling port, and completing the creation of an AFDX communication port; utilizing a network programming interface Socket socket to establish a server UDP port; receiving data of a remote controlled object through an AFDX communication port; and sending the remote controlled object data to a simulation control end through the server UDP port.

Description

Technical field [0001] The invention belongs to the technical field of airborne remote data acquisition and transmission, and relates to a system simulation method. Background technique [0002] As one of the aviation bus technologies, AFDX has been successfully applied on Airbus A380 and 400M, Boeing 787 and other aircraft. It is internationally recognized as the preferred communication network for new generation aircraft. It has been widely used in new airborne remote data acquisition and transmission systems. Research. [0003] It is very necessary to equip avionics systems with remote data concentrators with remote data acquisition and transmission technology. Multi-interface, high-speed, and mobile remote data concentrators are bound to bring large amounts of remote data transmission. The back-end server often needs to perform dynamic numerical and graphical simulation analysis on the collected remote data. In actual engineering, the simulation simulation of the controlled o...

Claims

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Application Information

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IPC IPC(8): H04L29/06G06F17/50
CPCH04L69/162G06F30/20
Inventor 张彬杜文亮张黎姜琳琳王纯委王博
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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