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Fault warning method based on spacecraft in-orbit internal charged effect dynamic library table

A fault warning and spacecraft technology, applied to space navigation equipment, space navigation vehicles, instruments, etc., can solve problems such as poor information use, weak correlation of electrification effects in spacecraft, and unintuitive representations, etc.

Inactive Publication Date: 2018-11-13
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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Problems solved by technology

[0003] There are deficiencies in the existing environmental parameters of high-energy electronics in space and the charging effect inside the spacecraft, such as weak correlation, unintuitive representation, and poor information application.

Method used

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  • Fault warning method based on spacecraft in-orbit internal charged effect dynamic library table
  • Fault warning method based on spacecraft in-orbit internal charged effect dynamic library table
  • Fault warning method based on spacecraft in-orbit internal charged effect dynamic library table

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Embodiment Construction

[0013] The present invention is described in detail below.

[0014] The space high-energy electron dynamic library table is based on the actual measurement data of the satellite. It mainly adds the electrons in the >0.8MeV and >2MeV energy ranges for 10 consecutive hours to obtain the 10-hour flux value of high-energy electrons. The calculation method is that the flux at this moment is Counting 10 hours before the current time and counting electrons together, so as to realize the 10-hour flux rolling of high-energy electrons. The calculation example is shown below. The data in Table 1 are real-time detection data (different energy segments can be divided according to the situation, and the detection data can be taken as 1 Minute data, 5-minute data, etc., according to actual needs), Table 2 is the high-energy electron dynamic library table calculated based on the detection data, the calculation method is 2017-2-1 10:00 at this moment>0.8MeV dynamic high-energy electron flux Fr...

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Abstract

The invention discloses a fault warning method based on a spacecraft in-orbit internal charged effect dynamic library table. An on-orbit satellite internal charged abnormal failure is used as a starting point, high energy electronic data provided by satellite-borne space environment load is used as a driving source, and a spacecraft internal charged effect matching database is generated. The spacecraft internal charged effect matching database mainly comprises a dynamic high energy electron flux library table and a relevance library table of dynamic high energy electron flux and satellite internal charged abnormality. The spacecraft in-orbit is monitored to provide support for business of relevant departments such as internal charged effect risk identification, warning and forecasting andthe like based on the relevance library table, and a wide application prospect is achieved.

Description

technical field [0001] The invention belongs to the technical field of spacecraft on-orbit safety perception, and in particular relates to a fault early warning method based on a dynamic library table of the electrification effect in the spacecraft on-orbit. Background technique [0002] In the satellite operation records, failures such as inversion of the working status of on-orbit instruments and abnormal gain of detectors occur frequently, and 53.3% of the incident rate is related to the space high-energy electronic environment after preliminary diagnosis. For example, the circuit board of the attitude control computer uses high-insulation materials. , due to the discharge of the circuit board due to the internal electrification, the discharge pulse damaged the RAM device in the computer, resulting in the failure of the attitude control computer to work normally. Similar failures have occurred in many satellites in our country. [0003] There are deficiencies in the exis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/22G06F17/30
CPCB64G1/22
Inventor 蒋锴薛玉雄史亮杨生胜秦晓刚汤道坦
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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