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arXiv 1809.07560cs.RO
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基于传感器自标定的多机器人运动编队分布式控制:实验验证

Multi-robot motion-formation distributed control with sensor self-calibration: experimental validation

University of Groningen(格罗宁根大学)

Hector Garcia de Marina, Johan Siemonsma, Bayu Jayawardhana, Ming Cao

摘要:

在本文中,我们提出了一个强大的运动编队分布式控制算法的移动机器人团队的设计和实现。团队的首要任务是形成一个几何形状,可以同时自由平移和旋转。这种方法使机器人表现为一个有凝聚力的整体,这在协作运输等任务中非常有用。该算法的鲁棒性依赖于这样一个事实,即每个机器人只采用本地测量从激光传感器,不需要离线校准。此外,机器人之间不需要交换任何信息。无需传感器校准且无需通信通道有助于将整个系统扩展到大量机器人。此外,由于机器人不需要任何非机载定位系统,而只需要相对于其邻居的相对位置,因此可以旨在具有在这种定位系统不可用的环境中操作的完全自主团队。该算法的计算成本是廉价的,并且来自标准微控制器的资源将足够。这一事实使得我们的方法的使用作为对其他要求更高的算法的支持而具有吸引力,例如,处理来自机载摄像头的图像我们验证的算法与一个团队的四个移动机器人配备了低成本的商用激光扫描仪的性能。

英文摘要:

In this paper, we present the design and implementation of a robust motion formation distributed control algorithm for a team of mobile robots. The primary task for the team is to form a geometric shape, which can be freely translated and rotated at the same time. This approach makes the robots to behave as a cohesive whole, which can be useful in tasks such as collaborative transportation. The robustness of the algorithm relies on the fact that each robot employs only local measurements from a laser sensor which does not need to be off-line calibrated. Furthermore, robots do not need to exchange any information with each other. Being free of sensor calibration and not requiring a communication channel helps the scaling of the overall system to a large number of robots. In addition, since the robots do not need any off-board localization system, but require only relative positions with respect to their neighbors, it can be aimed to have a full autonomous team that operates in environments where such localization systems are not available. The computational cost of the algorithm is inexpensive and the resources from a standard microcontroller will suffice. This fact makes the usage of our approach appealing as a support for other more demanding algorithms, e.g., processing images from onboard cameras. We validate the performance of the algorithm with a team of four mobile robots equipped with low-cost commercially available laser scanners.

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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