Integrated Micro-Electronics System on Cast-Mini Bus
- Paper number
IAC-07-B4.7.04
- Author
Mr. Sihan Shi, CASC, China
- Coauthor
Mr. Xiaotong Li, CASC, China
- Year
2007
- Abstract
HUMMERSAT-1 is first micro-satellite in DFH Satellite Co. Ltd. (IAC-06-B5.6.13). An integrated micro-electrics system (IES) is being developed for the DFHSat micro-satellite mission and its public CAST-mini bus. This IES is a comprehensive on-board autonomous system, which manages the satellite operations, performs attitude control, implements autonomous control and information transmission. The IES has two characteristics: the first is on board network control (OBNC), second is embedded Manage Execute Unit (MEU). On board network adopt dual-redundancy CAN bus as on-board field bus to meet the requirement for attitude control, distributed data handling, procedure control and autonomous manage. MEU is a standard interface data system which embedded into the subsystem of a spacecraft as a standardized component of performing the general and special tasks of the data system. The IES software consists of three main elements (RTOS-Real-Time Operating System, LLF-Low Level Functions, ALF-Application Level Functions) to support respectively interface with the MEU, on board data handling and spacecraft control. Based on-board network control incarnates enough the development tendency of IES i.e. network, integration, intelligence, agent. The paper presents an overview of the HUMMARSAT-1 and the design details of the OBNC and MEU in IES, describing its architecture, specification, hardware and software system. This research is supported by China National Space Administration (CNSA).
- Abstract document
- Manuscript document
IAC-07-B4.7.04.pdf (🔒 authorized access only).
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