Anomaly early warning method and device for spacecraft

Abstract

The invention provides an anomaly early warning method and device for a spacecraft and the method comprises the steps: obtaining first monitoring data of a spacecraft, wherein the first monitoring data is the monitoring data of the spacecraft in a first time period; and inputting the first monitoring data into a target LSTM prediction model to obtain a first prediction result output by the targetLSTM prediction model, with the target LSTM prediction model being obtained by training an initial LSTM prediction model by using second monitoring data, the second monitoring data being monitoring data of a spacecraft in a normal operation state in a second time period; wherein the first prediction result is used for indicating a first prediction parameter value of a target operation parameter ofthe spacecraft in a third time period after the end moment of the first time period; and according to the first prediction parameter value and the first actual parameter value, giving an abnormity warning on the spacecraft, wherein the first actual parameter value is the actual value of the target operation parameter of the spacecraft in the third time period.

Description

technical field [0001] The present application relates to the field of aerospace equipment, in particular to a method and device for anomaly early warning of a spacecraft. Background technique [0002] At present, health management has become one of the core technologies to improve the service life of complex equipment. As a typical complex equipment, improving its operating life and stability can significantly improve its use efficiency. [0003] The spacecraft has been operating in outer space for a long time and is continuously disturbed by outer space radiation. Some complex and unknown failures are more likely to occur than complex equipment on the ground. It is difficult to have a complete mathematical and mechanism model that can describe all failure modes; and, the spacecraft Failure will seriously affect the execution of various tasks, and even seriously affect the use of people's livelihood. For example, if the navigation satellite is abnormal, the performance and ...

AI Technical Summary

Problems solved by technology

[0009] The embodiment of the present application provides a spacecraft abnormal warning method and device, to at least solve the problem that the spacecraft abnormal warning method in the related art cannot accurately predict the abnormality due to the lack of data with fault characteristics

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