Aerospace Ethernet topology optimization method

A topology optimization, Ethernet technology, applied in the field of aerospace communication, can solve the problems of small available space inside the aerospace bus, increasing the difficulty of design and deployment, and high cost, so as to facilitate the design and optimization of topology, optimize structure, Guaranteed effect of latency performance

Active Publication Date: 2021-07-30
TIANJIN UNIV
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Problems solved by technology

[0005] Since the design and application of aerospace buses face the problems of small available space, complex architecture and high cost in th

Method used

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  • Aerospace Ethernet topology optimization method
  • Aerospace Ethernet topology optimization method
  • Aerospace Ethernet topology optimization method

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Embodiment Construction

[0031] The purpose of the present invention is to design a topology optimization method for aerospace Ethernet, design and optimize the objective function to quantify the performance and architecture cost of the topology, perform switch optimization and topology recovery according to the idea of ​​greed, and filter out the best solution according to the quantitative performance after link de-redundancy The best optimization method, and finally design a double-redundant structure and automatic optimization software.

[0032] The overall optimization process of the present invention is as follows figure 1 shown. First, according to the given TT service and RC service, any topology and its routing mode that can realize all service routing functions are designed, and the initial topology and initial routing table are obtained. Then, design an objective function that comprehensively considers architecture cost and delay performance, and use the objective function as a quantitative...

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Abstract

The invention belongs to the field of aerospace communication, and provides an aerospace Ethernet topology optimization method and software implementation. Therefore, the technical scheme used by the invention is that the aerospace Ethernet topology optimization method comprises the following steps of: firstly, designing any topology capable of realizing all service routing functions and a routing mode thereof according to a given time-Triggered (TT) service and a Rate-Constrained (RC) service, to obtain an initial topology and an initial routing table; then, designing an objective function which comprehensively considers architecture cost and delay performance, taking the objective function as a quantitative evaluation standard of topology, and screening out a topology scheme with the network delay as low as possible and the architecture as simple as possible. The method is mainly applied to aerospace communication occasions.

Description

technical field [0001] The invention belongs to the field of aerospace communication, the field of aerospace Ethernet, and the field of time-triggered Ethernet, and relates to an algorithm for optimizing topology of aerospace Ethernet. Background technique [0002] With the continuous development and progress of aerospace technology, aerospace technology has widely benefited all mankind in the civilian field, especially in the fields of space exploration, satellite navigation, meteorological observation, and extraterrestrial life exploration. But at the same time, it has also caused the overall system of the spacecraft to become increasingly complex. Although the processing capacity of each stand-alone device has been greatly improved after many upgrades of electronic technology, the interconnection transmission system between devices is slightly behind. [0003] The advantage of time-triggered Ethernet lies in the combination of time determinism, fault-tolerant failure mech...

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Application Information

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IPC IPC(8): H04L12/24H04L12/26H04L12/751H04L45/02
CPCH04L41/12H04L43/0852H04L45/02
Inventor 汪清伍晨邦
Owner TIANJIN UNIV
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