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Control and environment sensing system for a six-legged robot

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The architecture of the six legged robot is described in this paper. Robot kinematics for single leg and for the multi-legged platform is presented. For the control of the robot equipped with a number of sensors a three-layer control system has been designed. It consists of a host computer (in the first, teleoperation layer), of a single master microprocessor on the robot board (second layer) and of six microprocessors each of them for one leg (third layer). The communication between the first and the second layer is performed in duplex mode through the RS232 link via the Bluetooth channel, and between the second and the third control layer through the SPI bus. The robot sensing system consists of rotary potentiometers in each joint, of the leg as well as of a dual-axis accelerometer and gyroscope for platform orientation control. On board camera for remote vision is available.
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Bibliografia
  • [1] Berns K., lig W., Deck M., Albiez J., Dillmann R., "Mechanical construction and computer architecture of the four-legged walking machine BISAM", IEEE/ASME Transactions on Mechatronics, vol. 4, issue l, March 1999, pp. 32-38.
  • [2] Celaya E., Luis Albarral J., "Implementation of a hierarchical walk controller for the LAURON III hexapod robot". In: Proc. 6th International Conference on Climbing and Walking robots (Clawar 2003), Catania, Italy 2003, pp. 409-416.
  • [3] Fujita M., "Digital creatures for future entertainment robotics". In: Proceedings IEEE International Conference on Robotics and Automation (KRA 2000), vol. l, 24th-28thApril2000,pp.801-806.
  • [4] Raibert M. H., Brown H. B. Jr., Chepponis M., "Experi-ments in balance with a 3D onelegged hopping machine", International Journal of Robotics Research, 1984, no. 3, pp.75-92.
  • [5] Sakagami Y., Watanabe R., Aoyama C., Matsunaga S., Higaki N., Fujimura, K., "The intelligent ASIMO: system overview and integration". IEEE/RSJ International Conference on Intelligent Robots and Systems, vol.3, 30th Sept.-5th Oct. 2002, pp. 2478-2483.
  • [6] Spenneberg D., McCullough K., Kirchner F., "Stability of walking in a multilegged robot suffering leg loss". In: Proceedings of ICRA'04 - IEEE International Conference on Robotics and Automation, vol.3, 26th April- lst May 2004, pp. 2159-2164.
  • [7] Available at http://www.toyota.co.jp/en/special/robot
  • [8] Available at http://www.micromagicsystems.com/
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bwmeta1.element.baztech-article-BUJ5-0020-0014
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