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.