Construction Method of Reconfigurable Spaceborne Information Network Based on Dedicated Link Information Node

Abstract

A reconfigurable spaceborne information network construction method based on dedicated link information nodes utilizes a SpaceWire router to control a module unit, and communicates between each module unit through the SpaceWire router. Module unit routing does not distinguish between master and slave nodes, and is applicable to the construction of space-borne information networks with variable topology; by designating a special port of the SpaceWire routing chip as an internal node, it is specially responsible for router information collection, avoiding the expansion of physical address 0 based on Spw routing Complexity of function implementation. The invention solves the problems of arbitrary dynamic interconnection between different functional module units, mutual perception between multiple routers, and the realizable routing architecture engineering based on the SpaceWire bus, and satisfies the requirements of reconfigurable satellite on-orbit module assembly and reconstruction. Units can be freely connected, freely expanded, and real-time dynamic construction of information networks and other requirements.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, relates to a method for collecting network link information and constructing an information network based on a special link information node of a SpaceWire router, and is suitable for network design of a reconfigurable satellite information system. Background technique [0002] In order to meet the mission requirements of new spacecraft on-orbit maintenance, repair, scale expansion, and on-orbit function reconstruction, a new concept of spacecraft design and on-orbit construction based on modularization, interface standardization, batch launch, and on-orbit assembly is proposed. , this type of spacecraft is collectively referred to as "modular reconfigurable spacecraft", which can meet the development needs of ultra-large-scale and ultra-high-performance spacecraft in the future. This type of spacecraft requires an open electrical system architecture, which can support plug-and-pl...

AI Technical Summary

Problems solved by technology

[0007] The technical problem solved by the present invention is to overcome the deficiencies of the prior art, provide a reconfigurable spaceborne information network construction method based on dedicated link information nodes, and solve any dynamic interconnection between different functional module units, multiple Issues such as mutual awareness between routers and routing architecture engineering based on SpaceWire bus can be realized, which can meet the requirements of on-orbit module assembly and reconstruction of reconfigurable satellites, free docking between any functional module units, free expansion, and real-time dynamic construction of information networks, etc. need

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