Spacecraft multi-target heuristic ordering task planning method

Abstract

The invention discloses a spacecraft multi-target heuristic ordering task planning method and belongs to the technical field of aerospace. The method describes the composition, the resources, the subsystem functions and various constraint conditions required to be satisfied of a spacecraft according to subsystem internal constraint characteristics and in consideration of spacecraft structure, taskrequirements, equipment status and spacecraft capabilities, in view of the complex constraint of the spacecraft system and the coupling of system state information, describes multiple parallel subsystems of the spacecraft by using a timeline, establishes the internal state transition diagram of the subsystem, performs multi-target heuristic ordering task planning according to the constraint information and the state transition diagram between tasks, determines the orders of the tasks according to the symbol of an evaluation value, guides a planning search direction according to a multi-targetheuristic ordering result, finally outputs a multi-target heuristic ordering task planning solution, that is completes task planning of the spacecraft, reduces search space and improves the efficiency of task planning.

Description

technical field [0001] The invention relates to a spacecraft task planning method, in particular to a spacecraft multi-objective heuristic sorting task planning method, which 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] With the development of the aerospace field, the spacecraft highly dependent on the ground control method is becoming increasingly unsuitable for increasingly complex space activities. Therefore, the realization of autonomous mission planning of spacecraft can reduce the dependence on ground stations and...

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Problems solved by technology

[0006] Aiming at the problem of low planning efficiency caused by complex multi-task constraints and redundant planning operations in the spacecraft mission planning problem, the technical problem to be solved by a spacecraft multi-objective heuristic sorting task planning method disclosed by the present invention is to improve the Accelerate the speed of problem search and solution in task planning of the server, obtain reasonable planning solutions in a shorter time, and solve the problem of low planning efficiency caused by planning operations

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