Abstract
A visual and force feedback-based teleoperation scheme is proposed for cooperative tasks. The bilateral teleoperation system includes a haptic device, an overhead camera and a group of wheeled robots. The commands of formation and average velocities of the multiple robots are generated by the operator through the haptic device. The state of the multiple robots and the working environment is sent to the human operator. The received information contains the feedback force through the haptic device and visual information returned by a depth camera. The feedback force based on the difference between the desired and actual average velocities is presented. The wave variable method is employed in the bilateral teleoperation of multiple mobile robots with time delays. The effectiveness of the bilateral teleoperation system is demonstrated by experiments. The robots in the slave side are able to follow the commands from the master side to interact with the environments, including moving in different formations and pushing a box. The results show that the scheme enables the operator to manipulate a group of robots to complete cooperative tasks freely.
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Acknowledgments
The research reported in this paper was carried out at the Robotic Sensor and Control Lab, School of Instrument Science and Engineering, Southeast University, Nanjing, Jiangsu, China. The authors thank all the members of the Robotic Sensor and Control Lab for their support.
This work was supported in part by Natural Science Foundation of China under Grant 61375076, Research & Innovation Program for Graduate Student in Universities of Jiangsu Province under Grant KYLX 0108, and the Scientific Research Foundation of Graduate School of Southeast University YBJJ1423.
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Zhang, Y., Song, G., Wei, Z. et al. Bilateral teleoperation of a group of mobile robots for cooperative tasks. Intel Serv Robotics 9, 311–321 (2016). https://doi.org/10.1007/s11370-016-0204-7
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DOI: https://doi.org/10.1007/s11370-016-0204-7