Research on On-orbit Reconfigurable Technology for Space Station Payload System Based on SmartFusion2

Abstract

Targeted at the requirements of high reliability and extensibility of space station payload system, an On-orbit Reconfigurable Technology and implementation method based on SmartFusion2 is proposed. Adopting the theory of In Application Programming (IAP), the technical principles and key techniques of reconfigurable SmartFusion2 space station payload system is studied profoundly while the framework of “boot+3 Apps” is employed to update the application by means of ground data injection and to realize code area switch through the cooperation of the application and boot. With comprehensive consideration of the needs of the space-ground communication link, on-orbit operation control and space experiment, the reliability design is conducted from the perspectives of redundancy, verification and enabling protection, forming a common upload function module that can be easily ported to other processor platforms.