基于PDDL的对地观测卫星任务规划建模研究

传统的数学模型方法是解决复杂卫星任务规划问题的一种途径,但其抽象性给建模人员带来很大难度。PDDL(Planning Domain Definition Language)可以针对卫星任务规划问题建立清晰有效的模型,并能把模型的知识转化成计算机易于接受的形式。用PDDL描述对地观测卫星的任务规划问题,分析了卫星执行任务时涉及的约束、相关活动和所需的资源,建立任务规划模型的域文件(domain file)和问题(problem file)文件,并针对所建模型提出求解模型的算法流程,最后通过一个算例验证模型和算法是有效地。

Modeling Mission of Earth Observation Satellite Based on PDDL

The traditional method of mathematical modeling is a way to solve the complex problem of the satellite mission planning,but it brings planner more difficulty because of its abstractness.PDDL（Planning Domain Definition Language） can construct effective and legible models of satellite mission planning and translate the model knowledge into a form that can be accepted by computer easily.This paper explores how to use PDDL to describe the mission planning of the earth observation satellite,analyzes the constrains involved,actions related and the resources needed when satellite executes missions,constructs domain file and problem file of the mission planning model,and then proposes a solution algorithm flow of the model.At last,through an example,the model and algorithm are validated to be effective.