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机器人群体对连续环境的估计:相关网络与决策

Estimation of continuous environments by robot swarms: Correlated networks and decision-making

Humboldt Universität zu Berlin(柏林洪堡大学);Technical University of Berlin(柏林工业大学);University of Konstanz(康斯坦茨大学)

Mohsen Raoufi, Pawel Romanczuk, Heiko Hamann

AI总结:

针对连续环境特征估计问题,提出一种去中心化机器人群体控制算法,利用网络拓扑与集体决策的因果耦合实现均值共识与等高线聚集,真实实验表明其精度优于对照方法。

摘要:

集体决策是大规模多机器人系统在群体层面建立自主性的一项基本能力。群体机器人学中关于集体决策的大量文献都聚焦于从有限选项中进行选择的离散决策。本文中,我们为一个去中心化机器人系统分配任务:探索无界环境,就某一可测量环境特征的均值达成共识,并在测得该数值的区域(例如等高线)聚集。该任务的一个独特性质是机器人动态网络拓扑与其决策之间存在因果循环。例如,网络的平均节点度会影响收敛时间,而当前商定的均值会影响群体的聚集位置,进而影响网络结构以及精度误差。我们提出了一种控制算法,并在不同环境中的真实机器人群体实验里对其进行研究。结果表明,我们的方法是有效的,并且比对照实验取得了更高的精度。我们预计其可应用于例如用水面航行器围控污染等场景。

英文摘要:

Collective decision-making is an essential capability of large-scale multi-robot systems to establish autonomy on the swarm level. A large portion of literature on collective decision-making in swarm robotics focuses on discrete decisions selecting from a limited number of options. Here we assign a decentralized robot system with the task of exploring an unbounded environment, finding consensus on the mean of a measurable environmental feature, and aggregating at areas where that value is measured (e.g., a contour line). A unique quality of this task is a causal loop between the robots' dynamic network topology and their decision-making. For example, the network's mean node degree influences time to convergence while the currently agreed-on mean value influences the swarm's aggregation location, hence, also the network structure as well as the precision error. We propose a control algorithm and study it in real-world robot swarm experiments in different environments. We show that our approach is effective and achieves higher precision than a control experiment. We anticipate applications, for example, in containing pollution with surface vehicles.

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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