動的模倣制約による移動目標のロボットサーボ追従
Robotic Servo Tracking of Moving Targets with Dynamic Imitation Constraints
移動目標を追従する際に、模倣軌道制約を用いて軌道の連続性や振動を抑え、動的障害物回避と高精度収束を実現するサーボ追従手法を提案した論文。
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著者: Yazhe Luo, Sipu Ruan, Yifei Li, Diansheng Chen
分類: cs.RO
原文アブストラクト
Imposing explicit trajectory constraints in robot visual servoing remains challenging. Existing tracking methods achieve fast responses by mapping visual residuals to control velocities, but they have weak constraints on the intermediate motion process, which lead to trajectory discontinuity, oscillation, or conservative behaviors. To enable constrained tracking for moving targets, this paper proposes a servo tracking method based on imitation trajectory constraints. A dynamic model describing the robot approaching a moving target is formulated and analyzed for convergence. A time-scalable deformation mechanism and a trajectory modulation incorporating shape and amplitude components are introduced to generate a series of trajectories in real time, from which tracking points are adaptively determined to form dynamic constraints. The robot velocity is then computed from target pose differentials or tracked key features to follow the constrained trajectory. Simulation and real-world experiments demonstrate that the proposed method can achieve dynamic obstacle avoidance and high-precision convergence compared with several state-of-the-art methods in complex environments.