Design of house keeping software for the small satellites

With the development of small satellites, housekeeping software is becoming more and more complex. To meet the requirement of automatic flying and management of small satellites, the main functions, architecture and design of a certain small satellite are introduced. The principle of housekeeping software design, multi-task design, data communication, double computer fault diagnosing and processing are described. Based on the powerful multi-task embedded operating system, the onboard computer management, attitude management, data communication and fault tolerance system are integrated designed. The reliability is improved and the difficulty of automatic flying and management of small satellites is solved.