Heuristic spacecraft task planning method based on state transition path reconstruction

A state transition path and task planning technology, applied in the aerospace field, can solve problems such as low planning efficiency

Active Publication Date: 2021-02-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem of low planning efficiency caused by planning operations, the technical problem to be solved by the heuristic spacecraft mission planning method based on state transition path reconstruction disclosed by th

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  • Heuristic spacecraft task planning method based on state transition path reconstruction
  • Heuristic spacecraft task planning method based on state transition path reconstruction

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Embodiment 1

[0036] Such as figure 1 As shown, the heuristic spacecraft mission planning method based on state transition reconstruction disclosed in this embodiment, the specific implementation steps are as follows:

[0037] Step 1: Comprehensively consider the four factors of spacecraft structure, mission requirements, equipment status, and spacecraft capabilities, and make constraints on the spacecraft's composition, resources, subsystem functions, and constraints (causal constraints, time constraints, and resource constraints).

[0038] Aiming at the complex function of the spacecraft system and the coupling of system constraints, the timeline is used to describe the multiple parallel subsystems of the spacecraft, and the complex constraints and inter-system dependencies are described through the timeline structure and coupling state information to form a timeline description model , to describe the evolution of the behavior of each parallel subsystem over time. The subsystems specifi...

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Abstract

The invention discloses a heuristic spacecraft task planning method based on state transition path reconstruction, and belongs to the technical field of aerospace. According to internal constraint characteristics of subsystems, four factors of a spacecraft structure, task requirements, an equipment state and spacecraft capacity are comprehensively considered, and composition, resources, subsystemfunctions and various constraint conditions needing to be met of the spacecraft are described; for the characteristics of complex constraint of a spacecraft system and mutual coupling of system stateinformation, a plurality of parallel subsystems of the spacecraft are described by using a timeline, and a subsystem internal state transition diagram is established; meanwhile, heuristic informationis constructed according to the constraint relation between the states and the state conversion cost value, the planning search direction is guided according to the heuristic sorting result, and the final heuristic spacecraft task planning solving result based on state transition path reconstruction is output, so that spacecraft task planning is completed, the search space is reduced, and the taskplanning efficiency is improved. The success rate of spacecraft task execution is ensured.

Description

technical field [0001] The invention relates to a spacecraft mission planning method, in particular to a heuristic spacecraft mission planning method based on state transfer path reconstruction, and belongs to the field of aerospace technology. Background technique [0002] The aerospace field is one of the main fields of world technological development in the 21st century. Due to the characteristics of spacecraft in space missions, such as being far away from the earth, long flight time, and uncertain environment, there are great challenges in the operation and control of spacecraft, such as long-term communication delays, long-term reliability issues, Real-time operational issues, etc. [0003] During the in-orbit operation of the spacecraft, it is necessary to have the ability to plan a series of scientific goals, that is, according to the goals set by the mission, use intelligent planning technology to reason about several optional activities and their constraints, and ...

Claims

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Application Information

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IPC IPC(8): G06Q10/06B64G1/24
CPCG06Q10/06315G06Q10/067B64G1/24
Inventor 徐瑞金颢崔平远朱圣英梁子璇李朝玉尚海滨
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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