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A Method of Autonomous Command Generation for Imaging Satellite Based on Motion Optimization

An imaging satellite and command generation technology, which is applied to motor vehicles, space navigation equipment, and space navigation vehicles, etc., can solve problems such as unsatisfactory time requirements, and improve injection efficiency, ease of control, and strong versatility and the effect of flexibility

Active Publication Date: 2018-12-18
BEIJING INST OF SPACECRAFT SYST ENG
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  • Description
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Problems solved by technology

In addition, in the agile imaging mode, when tasks are close to each other, it is also necessary to consider the optimization and merging of similar switching actions, otherwise the time requirements for the execution of adjacent tasks cannot be met.

Method used

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  • A Method of Autonomous Command Generation for Imaging Satellite Based on Motion Optimization
  • A Method of Autonomous Command Generation for Imaging Satellite Based on Motion Optimization
  • A Method of Autonomous Command Generation for Imaging Satellite Based on Motion Optimization

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Effect test

Embodiment

[0126] Meta task:

[0127] In order to improve injection efficiency and reduce the complexity of ground control, the imaging or playback mission instructions of the day are injected into the ground at one time, and presented in the form of meta-tasks. The main information contained in a single meta-task is as follows:

[0128]

[0129] The meta-task type indicates that the meta-task is an imaging meta-task or a playback meta-task.

[0130] Imaging meta-task storage area, which is used to store the imaging meta-task data package injected on the ground for one day.

[0131] Playback meta-task storage area, which is used to store the one-day playback meta-task data package injected on the ground.

[0132] When circle imaging meta-task list and playback meta-task list:

[0133] 1 minute before the start of the orbital circle, the command autonomous generation process for the next orbital circle begins. Select all meta-tasks of the next lap from the imaging meta-task storage ...

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Abstract

The invention discloses a motion optimization based self-instruction generating method for imaging satellite, a method of converting multiple meta-tasks into on-satellite manipulation-level instructions. According to the method, firstly, based on the motion information equipped to the meta-tasks and the timing sequence relationships among the meta-tasks and through the use of the greedy algorithm, the same type of motions of opening and closing the machine between two adjacent meta-tasks are maximized. Therefore, the execution complexity of software is reduced; the motion sequence of the satellites is effectively planned. And according to the motion sequence and the working state of the current satellite's equipment (for instance, sequestration uses backup to save, digital transmission servo uses the original, and etc.), the corresponding manipulation-level instructions are specified so as to effectively make the satellites more operational, achieve better efficiency and provide technical support to enable the single orbit of agile satellites to complete multiple tasks. In addition, according to the method, abstract definitions are made between the meta-tasks and their corresponding motion information as well as between the timing sequence relationships of the meta-tasks, which allows a user to define themselves. Therefore, the method is very flexible and universal and can be applied to various remote sensing satellites.

Description

technical field [0001] The invention belongs to the technical field of autonomous operation of remote sensing satellites, and in particular relates to a method for generating autonomous commands of imaging satellites based on motion optimization. Background technique [0002] The attitude maneuverability of the new agile remote sensing satellite is enhanced, and the one-track imaging capability is several times stronger than that of traditional remote sensing satellites (such as figure 1 Therefore), if the satellite is still operated according to the traditional method of "complete the meta-task on the ground to execute the satellite on the command generation", on the one hand, the ground operators need to understand the operation details and load usage methods of different satellites. In the process, it is often necessary to check and confirm the instructions and parameters with the satellite developer, and the process is cumbersome. At the same time, the complexity of man...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/08
CPCB64G1/244
Inventor 朱剑冰汪路元郭坚田贺祥郭廷源王跃程博文张亚航于俊慧于龙江张强赵魏
Owner BEIJING INST OF SPACECRAFT SYST ENG
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