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Large-scale satellite group configuration control method and system, storage medium and electronic equipment

A control method and large-scale technology, applied in the field of systems, storage media and electronic equipment, and large-scale constellation configuration control methods, can solve the problems of inability to obtain specific position information, slow convergence speed, and insufficient algorithm flexibility, and achieve Reduce the possibility of invalid transfer, excellent convergence speed and error, and ensure high efficiency and rapidity

Pending Publication Date: 2022-04-01
TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Compared with the existing technology, only the time-varying Markov matrix is ​​designed for the individual, and its guidance law can only roughly calculate the unit number of the individual at the next moment, but cannot obtain the specific position information of the individual inside the unit. This will cause many problems in practical applications, such as the inability to determine the maneuvers required for each transfer, and the collision of different individuals due to the lack of position information
In addition, the design of the Markov matrix is ​​relatively simple, and the analysis of the situation faced by the ultra-large-scale cluster, such as the large gap between the local density distribution and the expectation, and the possible existence of isolated units / individuals, etc., leads to slow convergence in the simulation. The actual density error is large, and the fuel consumption and time cost are not taken into account, and the next step of control is not flexibly planned according to the actual density distribution at each moment, resulting in high cost and insufficient algorithm flexibility

Method used

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  • Large-scale satellite group configuration control method and system, storage medium and electronic equipment
  • Large-scale satellite group configuration control method and system, storage medium and electronic equipment
  • Large-scale satellite group configuration control method and system, storage medium and electronic equipment

Examples

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Effect test

Embodiment 1

[0100] Example 1, the target unit is defined as the unit containing the target configuration, and the expected density of these units should be greater than zero: after the end of the process, all individuals should only be concentrated in the target unit, and the density of these target units should be greater than Zero, the density of non-target cells should be zero.

[0101] Obtain the real-time density distribution of N units at the current moment, and calculate the error value between the real-time density distribution and the expected density distribution based on the error function; for each individual, it is necessary to calculate the probability transition matrix P at the next moment to indicate the individual transition Probability to other units; Then use the method of roulette to randomly sample according to the probability value to obtain the unit number l to be transferred to at the next moment.

[0102] In order to avoid situations such as outliers, uneven local...

Embodiment 2

[0132] Example 2, such as image 3 As shown, the transfer trajectory of individual j is determined by the Voronoi segmentation method at a certain moment, image 3 (a) to image 3 (b) are the Voronoi segmentation diagrams before the Vth to V+3th movement respectively, in which the solid line polygon is the segmentation result of the Voronoi method; the dotted line polygon is a new polygon with an internal similarity (with a distance of R from the original polygon min ); the polygon at the starting point of the arrow is the polygon where individual j is located; the dotted arrow is the new transfer direction determined for individual j before each movement, and the individual will move along this direction to the intersection of the new polygon and this direction during the next movement Position (the farthest transfer distance within the restricted range); the end point of the arrow is the tentative target position of individual j at the next moment, that is, the position of ...

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Abstract

The invention relates to the field of satellite group control, in particular to a large-scale satellite group configuration control method and system, a storage medium and electronic equipment. The method comprises the steps that 1, a satellite group is divided into a plurality of units, each unit comprises an individual, whether the satellite group is abnormal or not is judged, and if the satellite group is abnormal, the step 2 is executed; 2, whether invalid transfer exists in the current unit or not is judged, a first judgment result of the current unit is generated, if the first judgment result is yes, the individuals in the unit with invalid transfer are non-transferred individuals which are not transferred to the target unit, and the invalid transfer means that the individuals in the unit do not move into the target unit; and step 3, determining the position of the untransferred individual at the next moment according to the transfer probability data of the satellite group, calculating the moving path of the untransferred individual according to the position, and controlling the untransferred individual to correspondingly move according to the moving path. According to the invention, the effects of relatively flexible movement track and track collision avoidance can be achieved.

Description

technical field [0001] The invention relates to the field of constellation control, in particular to a large-scale constellation configuration control method, system, storage medium and electronic equipment. Background technique [0002] Cluster is a concept of distributed space system, which can reduce the control cost of configuration maintenance by relaxing the relative position set requirements between individuals. The satellite cluster system puts more emphasis on the coordination and cooperation between spacecraft, and expresses the overall function by combining the basic behaviors of individuals. Constellation combines the advantages of spacecraft formation flight and incorporates the concept of modular spacecraft to make its design more flexible, faster response, stronger survivability, and reconfigurable functions. Time-sensitive space missions such as local emergencies and scientific research missions such as asteroid detection have brought great advantages. [0...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06N7/00
Inventor 张皓陈琳张晨付伟达朱政帆汪忠辉韦楠
Owner TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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