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Method and device for processing reentry risk degree data of spacecraft disintegration fragments

A technology of disintegrating debris and spacecraft, which is applied in the field of spacecraft, can solve the problem of low accuracy of spacecraft reentry and disintegration debris, and achieve the effect of improving accuracy

Pending Publication Date: 2021-07-23
BEIJING AEROSPACE CONTROL CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for processing re-entry risk data of spacecraft disintegrated debris, so as to at least solve the technical problem of low accuracy in ground risk assessment of spacecraft re-entry and disintegrated debris

Method used

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  • Method and device for processing reentry risk degree data of spacecraft disintegration fragments
  • Method and device for processing reentry risk degree data of spacecraft disintegration fragments
  • Method and device for processing reentry risk degree data of spacecraft disintegration fragments

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Embodiment 1

[0030] According to an embodiment of the present invention, an embodiment of a method for processing re-entry risk data of spacecraft disintegration debris is provided. instructions and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0031] figure 1 It is a flow chart of a method for processing re-entry risk data of spacecraft disintegration debris according to an embodiment of the present invention. like figure 1 As shown, the method includes the following steps:

[0032] Step S102, collecting state data of at least one disintegrated fragment in the state of reentry and falling, wherein the state data includes at least one of the following: mass, reentry velocity, cross-sectional area and volume of the disintegrated fragment.

[0033] In the technical solution provided in the above-mentioned step S102 of the present invention, the disintegrated deb...

Embodiment 2

[0104] The technical solutions of the embodiments of the present invention are illustrated below in combination with preferred implementation modes.

[0105] Figure 4 It is a flow chart of a ground risk assessment method for spacecraft reentry disintegration debris according to an embodiment of the present invention. Such as Figure 4 As shown, the method may include the following steps:

[0106] Step S401, calculating parameter information such as velocity, size, area, and mass of reentry debris.

[0107] Step S402 , calculating the probability distribution density function of the falling point of the debris.

[0108] Step S403, discretize the probability distribution density function to generate geographic grid data of the landing area.

[0109] Step S404, processing and generating the raster data of the world population density distribution of the landing zone.

[0110] Step S405, calculating the casualty area, casualty number and re-entry risk of a single fragment. ...

Embodiment 3

[0125] The embodiment of the present invention also provides a processing device for re-entry risk data of spacecraft disintegration debris. It should be noted that the apparatus for processing re-entry risk data of spacecraft disintegration debris in this embodiment can be used to execute the method for processing re-entry risk data of spacecraft disintegration debris in the embodiment of the present invention.

[0126] Image 6 is a schematic diagram of a processing device for re-entry risk data of spacecraft disintegration debris according to an embodiment of the present invention. Such as Image 6 As shown, the processing device 60 of the re-entry risk data of spacecraft disintegration debris may include: a collection module 61 , a prediction module 62 , a retrieval module 63 and a processing module 64 .

[0127] The collection module 61 is configured to collect state data of at least one disintegrated fragment in the state of re-entry and fall, wherein the state data in...

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Abstract

The invention discloses a method and a device for processing reentry risk degree data of spacecraft disintegration fragments. The method comprises the steps of collecting state data of at least one disintegration fragment in the reentry meteorite falling state, wherein the state data comprises at least one of the mass, the reentry speed, the sectional area and the volume of the disintegration fragment; predicting a probability distribution density function of at least one disintegration fragment drop point based on the state data of the at least one disintegration fragment; calling geographic raster data used for representing population distribution on the earth surface; based on the probability distribution density function of each disintegration fragment drop point and the geographic raster data, obtaining risk data generated when each disintegration fragment impacts the earth surface, wherein the risk data comprises at least one of the following data: casualty area, casualty number and reentry risk degree. According to the invention, the technical problem of low accuracy of evaluating the ground risk degree of the reentry disintegration fragments of the spacecraft is solved.

Description

technical field [0001] The invention relates to the field of spacecraft, in particular to a method and device for processing re-entry risk data of disintegrated debris of a spacecraft. Background technique [0002] At present, as the number of spacecraft launched by various countries in the world continues to increase, the probability of potential failure of spacecraft and the risk of uncontrolled re-entry increase accordingly. Therefore, it is urgent to carry out research on the risk of spacecraft re-entry and ground threat assessment of debris debris, and timely forecast Uncontrolled spacecraft re-entry area and ground threat level, effectively respond to potential uncontrolled risks and hazards of spacecraft, and maintain national space security. The preconditions for re-entry event casualty risk assessment are a detailed world population distribution model and a credible forecast of debris landing areas. For a certain spacecraft, the distribution of debris landing points...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/20G06Q10/04G06Q10/06G06N7/00G06F111/08
CPCG06F30/15G06F30/20G06Q10/04G06Q10/0635G06Q10/06393G06Q10/06395G06F2111/08G06N7/01
Inventor 韩意陈明孔静谢剑锋慎千慧乐天温旭峰宋辰
Owner BEIJING AEROSPACE CONTROL CENT
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