A method and system for autonomous mission planning on a satellite

Abstract

The invention discloses a satellite onboard autonomous task planning method and system. The method comprises the steps that a satellite model is established; completed task information and uncompleted task information in a set task planning scheme are determined according to the satellite model; the task state is updated according to the completed task information and the uncompleted task information so as to obtain the first task state; whether an emergency task is inserted in the first task state is judged so as to obtain the first judgment result; if the first judgment result indicates that the emergency task is inserted in the first task state, the inserting position of the emergency task inserted in the first task state is determined according to the consumed computing resource so as to form a new satellite replanning model; and each satellite service subsystem is controlled to complete the task arranged for replanning according to the information in the satellite replanning model. With application of the method and the system, the task can be autonomously planned so that the response speed for the emergency event can be enhanced.

Description

technical field [0001] The invention relates to the field of satellites, in particular to a method and system for autonomously planning tasks on a satellite. Background technique [0002] Satellites are of great significance in responding to natural disasters, sudden environmental incidents, combating terrorist activities, organized crime, and emergencies in surrounding hotspots, but these emergency actions are highly unexpected in time and space. Uncertainty, correspondingly requires the satellite to make a near real-time fast response. The current observation task planning is usually carried out on the ground, and the planning period varies from one day to several days. After the planning plan is completed, the corresponding control instructions are generated, and satellites are injected into the satellite-ground time window, and the satellites implement the earth observation strictly according to the plan. Considering the limitation of measurement and control opportuniti...

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Problems solved by technology

Considering the limitation of measurement and control opportunities, this method has poor timeliness and lacks the ability to adapt to the impact of dynamic environments such as weather. Therefore, the response to emergencies cannot follow the conventional ground-based task-by-time and batch-by-batch planning and dispatching mode.

For example, in non-combat military operations such as Wenchuan Earthquake Rescue and Snow Disaster Rescue in 2008, although my country's earth observation satellite system played an important role, it lacked autonomy and flexibility, which led to the lack of rapid response capabilities and the inability to capture favorable forces in a timely manner. Meteorological conditions and the realization of rapid revisiting make the means of obtaining information about disasters more subject to foreign satellite systems

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