Physical topological structure generation algorithm of 664 avionics network

Abstract

The invention discloses a physical topological structure generation algorithm of a 664 avionics network. The algorithm comprises four steps of basic determination of the algorithm, input and output determination of the algorithm and an algorithm process. The basic determination of the algorithm comprises the following steps: determining annotation attributes in algorithm input, determining a physical topological structure of a 664 network, and determining a virtual link path; wherein the input determination of the algorithm comprises switch attribute determination, terminal attribute determination, APP attribute determination and known connection relationship determination; the algorithm process comprises target model determination of the algorithm, basic thought determination of the algorithm and a specific calculation process. According to the invention, various choices can be provided, the bandwidth utilization rate is higher, fewer switches are needed, the network delay is lower, the jitter is lower, the network determinacy is stronger, and the 664 network physical structure setting requirement applied to airplanes is fully met. The defects of low calculation precision, low bandwidth utilization rate and high maintenance cost due to manual setting of the physical structure of the avionics backbone network in the prior art are overcome.

Description

technical field

[0001] The invention relates to the technical field of algorithm application, in particular to an algorithm for generating a physical topology structure of a 664 avionics network. Background technique

[0002] The physical structure of the ARINC664 (aviation electronics full-duplex communication Ethernet, hereinafter referred to as 664 network) avionics backbone network used in the existing aircraft is manually set, and has not been carefully optimized by the algorithm. Its disadvantages are as follows: 1. Manually setting up the physical structure is only a simple estimation without careful calculation of the algorithm, and this estimation is basically an estimation of the number of interfaces, and lacks an estimation of the internal bandwidth of the interface; in the actual development process of the avionics system In the process, the bandwidth is likely to be insufficient, so the physical structure needs to be reconfigured; the reconfiguration of the stru...

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