航天器时态规划技术研究进展

Research Progress of Temporal Planning Techniques for Spacecraft

结合航天器自主运行的迫切需求,阐述了航天器任务规划问题给智能规划技术带来的挑战,并重点分析了具有时间属性的规划方法研究必要性。给出航天器时态规划定义,分别总结了状态空间时态规划建模方法和基于时间线的时态规划建模方法,并给出时态规划知识模型关键元素定义。根据规划方法发展现状,归纳总结前向链、模型转换、规划空间规划和分层任务网络四种方法在时态规划技术方面的特点和研究进展,着重描述各种方法对规划中时间要素的处理。在对目前的航天器时态规划技术发展趋势总结分析基础上,给出了未来航天器时态规划技术的发展建议。

Combined with the urgent need for autonomous operation of spacecraft,the challenges posed by spacecraft mission planning issues to intelligent planning techniques are described,and the need for studying temporal properties of planning methods is analyzed emphatically.Given a spacecraft temporal planning definition,the state-space and timeline based temporal planning modeling methods are summarized respectively and the key elements are defined.According to the development of the planning method,the research progress and methodological characteristics of temporal planning techniques are summarized with emphasis on the treatment of the temporal element by various methods in four aspects:forward chain,model transformation,plan-space planning and hierarchical task network methods.Based on the summary analysis and application of current temporal planning techniques on spacecraft,research trends for future spacecraft temporal planning techniques are suggested.