Star topology network constructing method based on time triggered bus

Abstract

The invention discloses a star topology network constructing method based on a time triggered bus. The method comprises steps as follows: 1), a plurality of TTE (time triggered Ethernet) terminals are connected with a TTE switch respectively, and a configuration computer is connected with the TTE terminals and the TTE switch; 2), a network description file is written; 3), the description file is converted into an image file capable of being loaded onto the TTE switch and the TTE terminals on the configuration computer; 4), the image file is loaded onto the TTE switch and the TTE terminals, and real-time data stream exchange runs between the TTE switch and the TTE terminals. With the adoption of the method, the star topology network based on the time triggered bus in a distributed comprehensive modular avionic system is constructed, time synchronization between terminal equipment and the network is realized, and resource conflict during running of the system is alleviated.

Description

technical field [0001] The invention relates to a method for building a star topology network based on a time-triggered bus in a distributed integrated modularized avionics system. Background technique [0002] On the existing aircraft platform, the avionics system may include multiple buses, and the processor needs to provide interfaces for different buses, and the design is cumbersome; the 429 bus, 1553 bus, AFDX (full-duplex Ethernet bus), and FC (fiber optic) bus are all It is a non-time-critical bus, which may cause congestion during data transmission, and has a high risk in systems with very high real-time requirements. [0003] As the most common LAN technology, Ethernet is widely used in offices, networks, and production facilities. Time Triggered Ethernet (Time Triggered Ethernet: TTE) expands the application of traditional Ethernet through network service enhancement, so as to meet the new requirements of reliable and real-time data transmission in advanced integr...

AI Technical Summary

Problems solved by technology

[0002] On the existing aircraft platform, the avionics system may include multiple buses, and the processor needs to provide interfaces for different buses, and the design is cumbersome; the 429 bus, 1553 bus, AFDX (full-duplex Ethernet bus), and FC (fiber optic) bus are all It is a non-time-critical bus, which may cause congestion during data transmission, and has a high risk in systems with very high real-time requirements

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