On-orbit operation and maintenance method and system for digital twin satellites

Abstract

The invention discloses a digital twin satellite in-orbit operation and maintenance method and system, and relates to space operation satellites, terrestrial digital twin satellites and terrestrial simulation satellites, and the method comprises the following steps: (1), monitoring the in-orbit state of the digital twin satellites: constructing a terrestrial digital twin satellite virtual model based on a space operation satellite entity, and monitoring the state of a space operation satellite; (2) in-orbit fault processing of the digital twin satellites: when the space operation satellites have faults, the ground digital twin satellites and the ground simulation satellites jointly complete testing and generation of a fault repair process and send the fault repair process to the space operation satellites; (3), in-orbit fault prediction of the digital twin satellites: the ground digital twin satellites operate at a rhythm faster than that of the space operation satellites, and when a fault is predicted to occur, the fault is repaired according to the in-orbit fault processing of the digital twin satellites in the step (2).

Description

technical field [0001] The invention belongs to the fields of electronic engineering and computer science, and in particular relates to a digital twin satellite on-orbit operation and maintenance method and system. Background technique [0002] With the advent of the era of Internet small satellites, how to carry out status monitoring and operation and maintenance of satellites in orbit is a difficult problem. Traditional satellite operation and maintenance is mainly based on satellite downlink telemetry data, and the satellite is judged by analyzing the data. When a satellite fails, the traditional method has disadvantages such as long delay in fault discovery and high risk of repair, that is, the traditional fault repair process based on data analysis directly acts on the satellite without some verification means, which is likely to cause Irreparable damage to the satellite. Contents of the invention [0003] In order to solve the above technical problems, the present i...

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Problems solved by technology

[0002] With the advent of the era of Internet small satellites, how to carry out status monitoring and operation and maintenance of satellites in orbit is a difficult problem. Traditional satellite operation and maintenance is mainly based on satellite downlink telemetry data, and the satellite is judged by analyzing the data. When a satellite fails, the traditional method has disadvantages such as long delay in fault discovery and high risk of repair, that is, the traditional fault repair process based on data analysis directly acts on the satellite without some verification means, which is likely to cause irreparable damage to the satellite

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