信念空間ナビゲーションのためのタスク・動作統合計画
Task-Motion Planning for Navigation in Belief Space
屋内大規模環境でのナビゲーションに向け、離散的なタスク計画と連続的な動作計画を統合し、動作・センシングの不確実性下(信念空間)でタスクレベル最適な計画を返す確率的完全な枠組みを提案し、Gazeboの模擬オフィスで検証した。
著者: Antony Thomas, Fulvio Mastrogiovanni, Marco Baglietto
分類: cs.RO, cs.AI
原文アブストラクト
We present an integrated Task-Motion Planning (TMP) framework for navigation in large-scale environment. Autonomous robots operating in real world complex scenarios require planning in the discrete (task) space and the continuous (motion) space. In knowledge intensive domains, on the one hand, a robot has to reason at the highest-level, for example the regions to navigate to; on the other hand, the feasibility of the respective navigation tasks have to be checked at the execution level. This presents a need for motion-planning-aware task planners. We discuss a probabilistically complete approach that leverages this task-motion interaction for navigating in indoor domains, returning a plan that is optimal at the task-level. Furthermore, our framework is intended for motion planning under motion and sensing uncertainty, which is formally known as belief space planning. The underlying methodology is validated with a simulated office environment in Gazebo. In addition, we discuss the limitations and provide suggestions for improvements and future work.
