A method and system for in-orbit satellite status monitoring and prediction based on digital twins
A technology of satellite status and twins, which is applied in the direction of test/monitoring control system, general control system, control/regulation system, etc., to achieve the effect of improving the efficiency of status interpretation, strengthening simulation and prediction functions, and enriching the status quantity
Active Publication Date: 2020-11-20
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology
[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the existing technology, to provide a method and system for monitoring and predicting the status of satellites in orbit based on digital twins, which can solve the behavior simulation, accurate interpretation of status, and fast and accurate actions of each subsystem of the satellite in orbit. issues such as prediction, timely fault diagnosis, mission planning, and efficient on-orbit maintenance
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[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0053] Due to its unique space operating environment, satellites are difficult to repair once they break down. Therefore, on-orbit satellite status monitoring is particularly important. By monitoring the status of satellites in orbit, abnormal phenomena of satellites can be found as early as possible, and measures can be taken as early as possible to avoid irreversible satellite failures.
[0054] With the further improvement of satellite complexity and intelligence, for the same task, there may be different execution plans under different conditions, predicting the plan to be executed, ensuring that it does not violate satellite constraints, and achieving the predetermined goal is the One of the tasks that must be done during rail testing.
[0055] Compared with conventional methods, the use of digital twins for satellite status mon...
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The invention discloses an in-orbit satellite state monitoring and prediction method and system based on digital twins. According to the method, the satellite digital twins are established according to a to-be-monitored target satellite; in-orbit telemetry down data of the to-be-monitored target satellite is read, respective running states of the digital twins are configured according to the in-orbit telemetry down data to be consistent with an in-orbit satellite, and the digital twins consistent with the in-orbit state configuration are formed; through the digital twins consistent with the in-orbit state configuration, relevant variable states of the digital twins in the running process are checked, and in-orbit satellite state monitoring is realized; and through the digital twins consistent with the in-orbit state configuration, a control instruction is sent to the digital twins according to the requirement of a task, running of the digital twins is accelerated, the accelerated running result of the digital twins is observed, and in-orbit satellite state prediction is realized.
Description
technical field [0001] The invention relates to a digital twin-based on-orbit satellite state monitoring and prediction method and system, belonging to the technical fields of on-orbit satellite state interpretation, task planning, fault diagnosis and on-orbit maintenance. Background technique [0002] Modern aerospace flight control puts forward new requirements for ground support. With the continuous advancement of aerospace technology, the on-orbit operability of spacecraft has been greatly improved, and the ground system can provide more support and services for spacecraft operations, including complex mission planning and operating parameters. Optimization and troubleshooting etc. These supports and services have put forward new requirements for ground simulation planning and verification capabilities, and spacecraft simulation has gradually changed from traditional program stage activities to spacecraft product full-cycle activities. The previous flight control suppor...
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IPC IPC(8): G05B23/02
CPCG05B23/0256
Inventor 缪远明张龙倪润立顾荃莹梁中坚张志强宋江波王瑶
Owner BEIJING INST OF SPACECRAFT SYST ENG