Reconstruction method of satellite-borne control computer

Abstract

The invention relates to a reconstruction method of a satellite-borne control computer. The reconstruction method includes the steps of 1, subjecting a FPGA (field programmable gate array) of each computer unit to system partitioning; 2, allowing a surface control center to generate FPGA configuration files of the computer units; 3, allowing the surface control center to transmit the FPGA configuration files to a data management subsystem; 4, allowing the data management subsystem to transmit the FPGA configuration files to a satellite bus; 5, allowing the computer units to perform reconstruction in the on-duty state. The reconstruction method has the advantages that the original central processing unit of the satellite-borne computer is replaced by the SRAM (static random access memory) type FPGAs, a reconstruction control circuit and a reconstruction configuration data storage designed on the original satellite-borne computer are connected to a configuration interface of the SRAM type FPGA, each SRAM type FPGA includes a constructible area and a fixed area, reconstruction of the satellite-borne control computer can be achieved on orbit, the satellite-borne control computer is under control of the surface during an on-orbit phase, and functions are changed in real time through the configuration files injected from uplink.

Description

technical field [0001] The invention belongs to the field of on-board computer technology, in particular to a reconfiguration method for an on-board control computer. Background technique [0002] Once the existing spaceborne computer is designed, its hardware interface and functions cannot be changed. It lacks flexibility in the face of complex space environments, and cannot change its own functions to adapt to the changing space ring through autonomous or ground intervention. Future long-term and long-distance space activities, especially the needs of autonomous flight control of spacecraft. [0003] At present, the on-board computer of the new generation of spacecraft has an increasingly urgent demand for variable structure and variable function, and there is an urgent need for an on-board computer that can realize real-time function reconfiguration on-orbit. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies of the ...

AI Technical Summary

Problems solved by technology

[0002] Once the existing spaceborne computer is designed, its hardware interface and functions cannot be changed. It lacks flexibility in the face of complex space environments, and cannot change its own functions to adapt to the changing space ring through autonomous or ground intervention. Future long-term and long-distance space activities, especially the needs of autonomous flight control of spacecraft

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