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Satellite-borne autonomous fault diagnosis method and system

A fault diagnosis system and fault diagnosis technology, applied in the aerospace field, can solve problems such as lack of monitoring ability, and achieve the effect of reducing the probability of alarm

Pending Publication Date: 2020-11-17
INNOVATION ACAD FOR MICROSATELLITES OF CAS +1
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  • Application Information

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Problems solved by technology

[0004] At present, the research on autonomous health management of spacecraft mostly focuses on the analysis of single and discrete key telemetry such as satellite energy, and realizes spacecraft fault diagnosis or prediction through data processing algorithms such as threshold and filtering. The status monitoring of components does not have the ability to monitor the signals generated by multi-component fusion or the results of multi-source data fusion
Therefore, it is not suitable for the on-orbit autonomous fault diagnosis of the downlink signal continuity of the navigation system

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  • Satellite-borne autonomous fault diagnosis method and system
  • Satellite-borne autonomous fault diagnosis method and system

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[0023] In the following description, the present invention is described with reference to various examples. One skilled in the art will recognize, however, that the various embodiments may be practiced without one or more of the specific details, or with other alternative and / or additional methods, materials, or components. In other instances, well-known structures, materials, or operations are not shown or described in detail so as not to obscure the inventive concepts of the present invention. Similarly, for purposes of explanation, specific quantities, materials and configurations are set forth in order to provide a thorough understanding of embodiments of the invention. However, the invention is not limited to these specific details. Furthermore, it should be understood that the embodiments shown in the drawings are illustrative representations and are not necessarily drawn to correct scale.

[0024] In this specification, reference to "one embodiment" or "the embodiment...

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Abstract

The invention discloses a satellite-borne autonomous fault diagnosis method, which comprises the following steps of: judging the working states of two satellite-borne monitoring receivers according toa communication state, selecting a diagnosis mode, judging the working state of a satellite according to an instruction receiving state, and judging the working state of downlink navigation signal according to the monitored real-time downlink navigation signal performance if the satellite is not in a maintenance state, thus to realize fault diagnosis.

Description

technical field [0001] The invention belongs to the field of aerospace technology, in particular to a method and system for autonomous fault diagnosis onboard. Background technique [0002] The Beidou navigation system is an independently operated global satellite navigation system independently developed by China. Since December 26, 2018, when the Beidou-3 basic system announced the official provision of global services, Beidou navigation satellites have begun to provide 24 / 7 uninterrupted positioning services. [0003] In order to ensure the stability of the navigation system service, it is necessary to monitor the status of the downlink navigation signal of the satellite navigation at all times. At present, the monitoring of downlink navigation signals is mainly realized through ground monitoring receivers, IGMAS and other monitoring means, and the health status of the satellite stand-alone is monitored through the ground station receiving satellite telemetry. It can be...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/42G01S19/11G01S19/12
CPCG01S19/42G01S19/11G01S19/12
Inventor 戴永珊陆新颖余志洋董日昌任前义沈苑李光沈冠浩
Owner INNOVATION ACAD FOR MICROSATELLITES OF CAS