arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2401.13610cs.ROcs.SYeess.SYmath.OC
收藏

采用混合拓扑的地面编队无尺度视觉空中控制

Scale-free vision-based aerial control of a ground formation with hybrid topology

Université Clermont Auvergne(克莱蒙奥弗涅大学);CNRS(法国国家科学研究中心);SIGMA Clermont(克莱蒙西格玛工程学院);Institut Pascal(帕斯卡研究所);Instituto de Investigación en Ingeniería de Aragón, Universidad de Zaragoza(阿拉贡工程研究所,萨拉戈萨大学)

Miguel Aranda, Youcef Mezouar, Gonzalo López-Nicolás, Carlos Sagüés

AI总结:

本文提出多空中单元基于下视视觉和图像相似变换控制地面独轮车机器人形成指定形状、未定尺寸编队的无尺度方法,可处理局部信息、无距离与全局坐标及拓扑变化,并证明稳定性。

摘要:

我们提出了一种新颖的基于视觉的控制方法,使一组地面移动机器人能够实现指定形状但尺寸未指定的编队。该方法使用多个配备下视相机的空中控制单元,每个单元仅观测多机器人团队中的一个局部子集。这些单元根据地面机器人的图像投影计算控制指令,既不使用标定信息,也不使用场景尺度信息,并将指令传输给机器人。控制策略依赖于图像相似变换的计算;我们证明,当受控机器人子集之间的重叠满足特定条件时,该策略具有渐近稳定性。监督单元之间通过协调运动来保证正确的控制性能,其存在使系统形成混合拓扑。总体而言,所提出系统在简洁性和灵活性方面提供了重要的实际优势。在控制团队形状这一问题中,我们的贡献在于同时应对多项挑战:控制器仅需机器人组的局部信息,不使用距离测量或全局参考坐标系,面向独轮车智能体设计,并能够适应拓扑变化。我们给出了说明性的仿真结果。

英文摘要:

We present a novel vision-based control method to make a group of ground mobile robots achieve a specified formation shape with unspecified size. Our approach uses multiple aerial control units equipped with downward-facing cameras, each observing a partial subset of the multirobot team. The units compute the control commands from the ground robots' image projections, using neither calibration nor scene scale information, and transmit them to the robots. The control strategy relies on the calculation of image similarity transformations, and we show it to be asymptotically stable if the overlaps between the subsets of controlled robots satisfy certain conditions. The presence of the supervisory units, which coordinate their motions to guarantee a correct control performance, gives rise to a hybrid system topology. All in all, the proposed system provides relevant practical advantages in simplicity and flexibility. Within the problem of controlling a team shape, our contribution lies in addressing several simultaneous challenges: the controller needs only partial information of the robotic group, does not use distance measurements or global reference frames, is designed for unicycle agents, and can accommodate topology changes. We present illustrative simulation results.

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。

↑