A spacecraft on-orbit fault detection and fault processing system and method

Abstract

The invention discloses a spacecraft in-orbit fault detection and fault processing system and a method and belongs to the technical field of automation. The system provided by the invention comprisesa spacecraft network interface, a rapid fault data output interface, a key parameter collector, a big data fault information memory, a fault diagnosis knowledge base, a fault logic inference machine,a fault conclusion list, fault processing instruction sheets and a fault processing executor. According to the system and the method, the defect in the prior art is overcome; spacecraft fault information is stored through utilization of the big data fault information memory and spacecraft faults are comprehensively processed, so a great number of software and hardware overheads resulting from spacecraft fault classification processing are overcome; moreover, the spacecraft in-orbit fault diagnosis knowledge base and the fault logic inference machine are established, so in-orbit automatic diagnosis can be carried out, and an intelligent level of a spacecraft is improved; and through adoption of a ground remote control method, the fault diagnosis knowledge base and the fault logic inferencemachine are updated continuously, so spacecraft in-orbit reliability is improved.

Description

technical field [0001] The invention relates to a spacecraft on-orbit fault detection and fault processing system and method, and belongs to the field of automation technology. Background technique [0002] There is no fault detection and fault processing system on traditional spacecraft. The on-orbit fault of the spacecraft needs to compare and analyze the telemetry information of the spacecraft on the ground, and the experienced experts in the industry will conduct diagnosis and processing. The processing process must be in the spacecraft measurement and control arc. The uplink remote control command is sent by the ground station to complete. Due to the limited national border of our country, the limited measurement and control arc of the spacecraft, and the short ground tracking time, the time left for the ground to process each time the spacecraft transits is very short, and the number of uplink commands is limited, resulting in many If the failure is not dealt with in t...

AI Technical Summary

Problems solved by technology

Initially, each subsystem of the spacecraft uses AD and other means to collect some important components or important parameters of itself, and handles its own faults according to the collected results. This method is effective for the fault handling of some components of the subsystem. However, this method has certain limitations. If an important part of the subsystem fails and other subsystems cannot work, the fault cannot be quickly located and identified, and the fault cannot be effectively dealt with. Later, with the rapid development of integrated electronic systems, It is also effective to classify spacecraft faults and deal with them step by step. However, the current design has too many classifications, and most of the fault detection is at the level of subsystems, without comprehensive processing of the overall fault of the spacecraft. It also does not have the ability to update spacecraft fault knowledge, and there is still a certain distance from the standard of intelligent spacecraft

Images