Research on Spacecraft Maintenance System Technology for Autonomous Management

With the rapid development of commercial communication constellation satellites, the traditional ground operation monitoring mode has been unable to meet the needs of thousands of on orbit spacecraft operation management. It is necessary to improve the spacecraft autonomous maintenance ability and reduce the business volume and complexity of ground management. Civil aviation greatly improves the autonomous Airworthiness of aircraft through the on-board maintenance system based on self-test. Referring to the on-board maintenance system technology of civil aviation and combined with the characteristics of spacecraft development, the layered and automatic spacecraft maintenance system architecture is designed, which can support the maintenance based on self-test at system level, single machine level and board level. When the self-test result is abnormal, the spacecraft maintenance system handles exceptions according to the plan, seeks to access the ground station and jointly complete the on orbit operation and maintenance guidance of spacecraft cluster with the ground.