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Communication network for aircraft

A communication network and aircraft technology, applied in the field of communication network, can solve problems such as delay, system integration and testing difficulties, and achieve the effect of improving utilization rate, simple and convenient installation and maintenance, and convenient data transmission

Active Publication Date: 2011-03-23
COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method improves the utilization rate of processors and network resources, but brings difficulties to the integration and testing of the entire system. The progress of the B787 project was delayed for a while. The adoption of this highly comprehensive method is also an important factor.

Method used

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  • Communication network for aircraft
  • Communication network for aircraft
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Embodiment Construction

[0024] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. These and other modifications and variations of the present invention can be implemented by those skilled in the art without departing from the spirit and scope of the present invention.

[0025] The present invention mainly provides a communication network for an aircraft, which includes: a core processing subsystem; at least one switching device communicating with the core processing subsystem; at least one terminal subsystem communicating with the at least one switching device.

[0026] In this network, the switching devices communicate with each other, and the terminal subsystem communicates with the core processing subsystem through the switching device, so as to realize the centralized management of the terminal subsystem by the core processing subsystem.

[0027] Preferably, wired connections are used between switching devices.

[0028] P...

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Abstract

The invention relates to a communication network for an aircraft. For overcoming the limitation of the bus network architecture of the air craft in the prior, the invention provides a network architecture of centralized management. In one aspect, the invention provides a network for the aircraft, which comprises a core processing subsystem, at least one switching device for communicating with the core processing subsystem, and at least one terminal subsystem for communicating with the at least one switching device. The processing software and management software of the terminal subsystem are integrated in the core processing subsystem; data excgabge between the terminal subsystem and the core processing subsystem is performed by an avionics full duplex switched Ethernet (AFDX) bus; and thus, the sharing of time, processor resources and memory resources is promoted. The terminal subsystems can perform the initial preprocessing of the data of the terminal subsystems and exchange the data through the AFDX bus; therefore, the utilization rate of the network resources is improved, it is convenient to transmit data, and it is simple and convenient to install and maintain the network.

Description

technical field [0001] The present invention relates to communication networks, in particular to communication networks for aircraft. Background technique [0002] At present, the integrated avionics system of civil aircraft adopts an integrated, modularized, and open system structure, and the system is highly integrated. The demand for communication capacity of the system communication network is increasing, and the demand for bandwidth of the bus network is getting higher and higher. The bandwidth of the traditional data bus is too small to meet the application requirements of modern civil aircraft. Avionics full-duplex switched Ethernet (AFDX ) is an electronic and protocol specification based on standard definitions, which is used as the bus of an integrated avionics system. It has the advantages of fast transmission speed, dual redundancy, high reliability, and good openness. It has begun to be used in advanced civil aircraft get applied. [0003] At present, the AFDX...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/28
Inventor 徐科华邓浩昌李浩敏
Owner COMAC
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