Method for scheduling task with preferential comprehensive benefit

Abstract

The invention discloses a method for scheduling a task with a preferential comprehensive benefit, which comprises the following steps: dividing a task area into stripes; calculating the best observing time of each task; judging whether the current task conflicts with the task arranged at last if the current task is arranged at the best observing time point according to the attitude maneuver time between the current task and the task arranged at last; if so, determining that the current task dose not need to be foreseen and can not be arranged, and if not, determining that the current task is foreseen, so as to acquire the foresight result; for the task which has a reserved foreseen result and influences the subsequent tasks, judging whether the current task can be arranged in a visible time window of the current task, and if not, processing the next task; and writing the current task which can be arranged at the best observing time point or in the visible window into a satellite action sequence; and finally outputting the processing results of all tasks to be used as the task scheduling results.

Description

technical field [0001] The invention belongs to the field of satellite task planning and scheduling, and relates to a satellite task scheduling method. Background technique [0002] Rapid attitude maneuvering imaging satellites can realize a variety of complex imaging modes with the help of rapid attitude maneuvering capabilities. Compared with traditional earth observation satellites that use sub-satellite point imaging, the rapid attitude maneuver capability greatly increases the satellite's observation opportunities for targets, and thus has stronger observation capabilities. Each imaging mode of the rapid attitude maneuvering imaging satellite is accompanied by multiple operations such as attitude maneuvering, camera switching on and off, and these operations form a coherent control command sequence. Due to the large number of instructions, the reliability of instruction arrangement and annotation and the real-time execution of instructions cannot be guaranteed. Therefo...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that due to the complexity of the constraints, the problem scale is large, the solution is difficult and time-consuming

For example, in the ASPEN system, due to the troublesome conflict identification and resolution rules adopted, the solution efficiency is low. In the application of EO-1, only 4 tasks can be scheduled every day, which is difficult to meet the requirements of multi-task scheduling;

[0009] Third, most of the existing scheduling methods are related to the specific application satellites, and the design of the model is closely related to the specific spaceborne equipment, which is not general and universal

Traditional scheduling methods are not suitable for fast attitude maneuvering imaging satellites, and cannot meet the needs of task scheduling for fast attitude maneuvering imaging satellites

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