Method and device for dynamically planning satellite emergency tasks

Abstract

The invention provides a method and device for dynamically planning satellite emergency tasks. Before planning, time windows are screened between a satellite uploading point and ending time for the closest ground station time window before the completion time of emergency tasks to guarantee that the emergency tasks can be completed in time after an instruction is uploaded to a satellite and beforethe completion time, and during planning, when each task is inserted, it is necessary to check whether limit for the maximum storage quantity of the satellite is met or not. In this way, conflictionbetween task time windows and confliction between storage quantities of the tasks are considered, and the planned scheme is closer to the actual plan execution process of the satellite; during satellite execution, task completion means that task shooting data is already downloaded to a ground station, in this way, when the emergency tasks are inserted into the time windows for selection, a targetfunction, which means that the earlier the emergency tasks are completed, the better the effect is, is designed, and the strategy that subsequent downloading time windows are selected to be executed early as much as possible is designed.

Description

technical field [0001] The invention relates to the field of satellite search, in particular to a method and device for dynamic planning of satellite emergency tasks. Background technique [0002] When remote sensing satellites perform observation tasks, routine tasks and emergency tasks often arrive dynamically. Among them, emergency tasks are distinguished from conventional tasks by their high weight, need to be completed within the completion time limit, and the earlier the completion time, the better. In the prior art, there are many The processing plan for emergency tasks, but the existing technology does not fully consider that the emergency task requires a measurement and control station to complete the relevant task sequence when the emergency task is executed, nor does it fully consider that the emergency task needs to be completed within its deadline. The downloading of the photo data is completed within a short period of time, and at the same time, a certain amoun...

AI Technical Summary

Problems solved by technology

[0002] When remote sensing satellites perform observation tasks, routine tasks and emergency tasks often arrive dynamically. Among them, emergency tasks are distinguished from conventional tasks by their high weight, need to be completed within the completion time limit, and the earlier the completion time, the better. In the prior art, there are many The processing plan for emergency tasks, but the existing technology does not fully consider that the emergency task requires a measurement and control station to complete the relevant task sequence when the emergency task is executed, nor does it fully consider that the emergency task needs to be completed within its deadline. The downloading of the photo data is completed within a short period of time, and at the same time, a certain amount of storage is not fully considered during the execution of the emergency task, that is, the amount of storage generated by the execution of the emergency task cannot exceed the remaining storage capacity of the relevant satellite at the corresponding time. In addition, the existing technology is not sufficient. Considering the urgency of emergency tasks, it needs to be completed as soon as possible. Therefore, there are many defects in the processing of emergency tasks in the existing technology, which makes the timeliness of emergency task processing not high.

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