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arXiv 1806.00196cs.RO
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基于深度确定性策略梯度方法的多车辆群集控制

Multi-vehicle Flocking Control with Deep Deterministic Policy Gradient Method

Northwestern Polytechnical University(西北工业大学);School of Automation, Northwestern Polytechnical University(西北工业大学自动化学院)

Yang Lyu, Quan Pan, Jinwen Hu, Chunhui Zhao, Shuai Liu

摘要:

随着多车辆系统的广泛应用,群集控制问题得到了广泛的研究。基于深度强化学习框架,研究了具有避碰和通信保护的多车辆系统(MVS)群集控制问题。具体地说,采用集中训练、分布式执行的深度确定性策略梯度(DDPG)方法来获得群集控制策略。首先,为了避免动态变化的状态观测,使用基于三层张量的观测表示,使得状态保持恒定,尽管观测维度在变化。设计了一个奖励函数来指导路径点跟踪、碰撞避免和通信保护。通过引入邻居的局部奖励函数来扩充奖励函数。最后,一个集中式的训练过程,训练共享的政策的基础上共同的训练集之间的所有代理。所提出的方法进行了测试,在不同的设置模拟场景。

英文摘要:

Flocking control has been studied extensively along with the wide application of multi-vehicle systems. In this paper the Multi-vehicles System (MVS) flocking control with collision avoidance and communication preserving is considered based on the deep reinforcement learning framework. Specifically the deep deterministic policy gradient (DDPG) with centralized training and distributed execution process is implemented to obtain the flocking control policy. First, to avoid the dynamically changed observation of state, a three layers tensor based representation of the observation is used so that the state remains constant although the observation dimension is changing. A reward function is designed to guide the way-points tracking, collision avoidance and communication preserving. The reward function is augmented by introducing the local reward function of neighbors. Finally, a centralized training process which trains the shared policy based on common training set among all agents. The proposed method is tested under simulated scenarios with different setup.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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