UAV間通信なしで協調輸送を実現するリーダー・フォロワー制御
Cooperative Transportation of UAVs Without Inter-UAV Communication
UAV同士の通信を必要とせず、ペイロードの参照軌道をリアルタイムに変更できるリーダー・フォロワー型の協調輸送システムを開発し、UKFによる力推定と非ホロノミック制御で追従性能を検証した。
著者: Pin-Xian Wu, Cheng-Cheng Yang, Teng-Hu Cheng
分類: eess.SY, cs.RO, cs.SY
原文アブストラクト
A leader-follower system is developed for cooperative transportation. To the best of our knowledge, this is the first work that inter-UAV communication is not required and the reference trajectory of the payload can be modified in real time, so that it can be applied to a dynamically changing environment. To track the modified reference trajectory in real time under the communication-free condition, the leader-follower system is considered as a nonholonomic system in which a controller is developed for the leader to achieve asymptotic tracking of the payload. To eliminate the need to install force sensors, UKFs (unscented Kalman filters) are developed to estimate the forces applied by the leader and follower. Stability analysis is conducted to prove the tracking error of the closed-loop system. Simulation results demonstrate the good performance of the tracking controller. The experiments show the controllers of the leader and the follower can work in the real world, but the tracking errors were affected by the disturbance of airflow in a restricted space.
