AFDX-based socket implementation method

Abstract

The invention provides an AFDX-based socket implementation method, which comprises the following steps of: an input step: taking a PCIE-AFDX interface card as a bottommost layer of a whole system environment, and creating a network driver, configuring and receiving and transmitting a network data packet, for AFDX equipment in Linux, a processing step: analyzing the message in the process of receiving and sending the network data packet, namely selecting the protocol type of the UDP data packet, submitting the protocol type to an AFDX network receiving function for processing, and creating a new network protocol for analyzing the message by utilizing a BSD interface layer provided by a kernel, and an output step: providing a user Socket interface to output the processed network data packet.According to the invention, AFDX network programming interfaces are unified, transplantation and development to Ethernet software are facilitated, meanwhile, direct I / O communication serves as network drive, high-speed communication is achieved, and expenditure is reduced.

Description

technical field [0001] The present invention relates to the technical field of network communication systems, in particular to an implementation method of AFDX-based sockets. Background technique [0002] According to the real-time communication characteristics of avionics, ARINC Corporation of the United States has formulated the ARINC664 specification to replace the ARINC429 bus. solution. The ARINC664 specification provides a transmission bandwidth of 100Mbps. The physical layer uses mature Ethernet technology. The upper-layer application inherits the advantages of ARINC429, uses dual redundant network planes, supports distributed structures, and provides high-reliability real-time deterministic avionics communication networks. [0003] ARINC664PART7 AFDX (AVIONICS FULL DUPLEX SWITCHED ETHERNET) has been successfully commercialized in the industry as a highly reliable real-time deterministic network for avionics, and will gradually become the mainstream technical standar...

AI Technical Summary

Problems solved by technology

As the network topology of the avionics system becomes increasingly complex, and the function and performance requirements of the avionics applications relying on the network gradually increase, the avionics system faces complex tasks, cumbersome system design, and the lack of means and data to verify the rationality of task design. Therefore, it provides a reasonable and effective AFDX application development environment, and provides simulation verification means for users to design and verify the rationality of top-level tasks

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