時空間占有グリッドマップを用いた動的環境における分散型マルチエージェント軌道計画
Decentralized Multi-Agent Trajectory Planning in Dynamic Environments with Spatiotemporal Occupancy Grid Maps
時空間占有グリッドマップで近未来の占有状態を予測し、動的障害物を含む環境で複数の小型飛行ロボットが衝突回避しながら分散的に軌道計画する手法を提案した。
著者: Siyuan Wu, Gang Chen, Moji Shi, Javier Alonso-Mora
分類: cs.RO
原文アブストラクト
This paper proposes a decentralized trajectory planning framework for the collision avoidance problem of multiple micro aerial vehicles (MAVs) in environments with static and dynamic obstacles. The framework utilizes spatiotemporal occupancy grid maps (SOGM), which forecast the occupancy status of neighboring space in the near future, as the environment representation. Based on this representation, we extend the kinodynamic A* and the corridor-constrained trajectory optimization algorithms to efficiently tackle static and dynamic obstacles with arbitrary shapes. Collision avoidance between communicating robots is integrated by sharing planned trajectories and projecting them onto the SOGM. The simulation results show that our method achieves competitive performance against state-of-the-art methods in dynamic environments with different numbers and shapes of obstacles. Finally, the proposed method is validated in real experiments.
