基于SOIS架构的星载设备虚拟访问设计OA北大核心CSTPCD

In order to better address the problems of spacecraft difficult interoperability between devices and weak software universality,the on-board data system architecture based on the stand-ard services and electronic data sheet(EDS)in the spacecraft onboard interface services(SOIS)framework of the Consultative Committee for Space Data Systems(CCSDS)is analyzed,and a de-sign approach for virtual access of device through the integration of standard services and EDS is proposed in this paper.The design instantiates the services for device discovery,device enumera-tion,device access,device virtualization,device data pool,and access management,along with their related primitives.Combined with EDS designed for plug-and-play on the 1553 B bus,the preliminary test and verification are carried out,and the feasibility is proved.The virtual access fusion method of onboard devices proposed in this paper can provide reference for the design of standard services and related EDS,which contributes to the rapid system integration and reuse of software and hardware components.