Satellite-borne wireless information system

Abstract

The invention provides a satellite-borne wireless information system which adopts a high and low speed wireless network mixed multi-layer networking, is used for acquiring, processing, fusing and transmitting multi-source information in real time and implementing management and control on each functional unit of a satellite and comprises a satellite house-keeping computer, a subsystem lower computer and terminal nodes, wherein the satellite house-keeping computer is connected with the subsystem lower computer by a high speed wireless network; the subsystem lower computer is connected with each terminal node by a low speed wireless network; and the satellite-borne wireless information system adopts a high and low speed mixed wireless network system structure. Therefore, by the satellite-borne wireless information system provided by the invention, full coverage of a bus on a whole spacecraft is implemented, non-blind-spot monitoring and control on the whole spacecraft are completed, restraints of communication network wiring to a satellite system structure and configuration layout are eliminated, a modularization degree of a satellite and flexibility of configuration layout are promoted, and 10% to 15% of an overall weight of the satellite can be reduced, so that modularization design is effectively ensured, and the satellite-borne wireless information system is adaptive to novel tasks such as on-orbit maintenance and service and the like.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and relates to a satellite-borne wireless information system, which has wireless multi-layer networking between the satellite platform and each functional unit of the payload, real-time acquisition, processing, fusion, and transmission of multi-source information, and various functions of the satellite. The unit implements management and control functions. Background technique [0002] An important change in the development of military aerospace is from a platform-based, comprehensive, pre-designed, long-life system to a capability-based, separate module, flexible combination, and short-cycle system, which puts forward higher requirements for the rapid development, design, and deployment of spacecraft. requirements. The information system is closely related to the functions of the spacecraft and all equipment, and is a key entry point to improve the capabilities of the spacecraft. Military s...

AI Technical Summary

Problems solved by technology

[0005] The constraints of the traditional satellite data network on the satellite system structure and configuration layout make the satellite design lack of pertinence, flexibility and scalability, severely restrict the configuration layout, and increase the difficulty of on-orbit replacement

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