Paper:
Overturn Recovery of Working Six-Legged Robots on a Flat Slope with Preparatory Body Rotation
Yuto Honda, Toshifumi Kawaguchi, and Kenji Inoue
Yamagata University
4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
A method for working six-legged robots to recover from an overturned state on a flat slope is proposed. The robot rotates around its roll axis, which is parallel to the slope, from an overturned state to a normal state. During this process, the robot supports its body using six legs and maintains as much static balance as possible. This enables a stable overturn recovery. Before recovery, the robot may rotate in the overturned state around its yaw axis, which is vertical to the slope, until the recovery direction becomes lateral to the slope. This reduces the risk of tumbling down the slope. Consequently, the robot can recover from the overturned state on the flat slope of 40° when it recovers almost in the lateral direction.
- [1] Q. Huang and K. Nonami, “Neuro-based position and force hybrid control of six-legged walking robot,” J. Robot. Mechatron., Vol.14, No.4, pp. 324-332, 2002. https://doi.org/10.20965/jrm.2002.p0324
- [2] V. Loc et al., “Control of a quadruped robot with enhanced adaptability over unstructured terrain,” 2009 IEEE/RSJ Int. Conf. on Intelligent Robots and Systems, pp. 2671-2676, 2009. https://doi.org/10.1109/IROS.2009.5354471
- [3] K. Kamikawa, T. Takubo, Y. Mae, K. Inoue, and T. Arai, “Omni-directional gait of multi-legged robot on rough terrain by following the virtual plane,” J. Robot. Mechatron., Vol.24, No.1, pp. 71-85, 2012. https://doi.org/10.20965/jrm.2012.p0071
- [4] R. Hodoshima et al., “Development of ASURA I: Harvestman-like hexapod walking robot – Approach for long-legged robot and leg mechanism design –,” 2013 IEEE/RSJ Int. Conf. on Intelligent Robots and Systems, pp. 4669-4674, 2013. https://doi.org/10.1109/IROS.2013.6697028
- [5] S. Kitano, S. Hirose, G. Endo, and E. F. Fukushima, “Development of lightweight sprawling-type quadruped robot TITAN-XIII and its dynamic walking,” 2013 IEEE/RSJ Int. Conf. on Intelligent Robots and Systems, pp. 6025-6030, 2013. https://doi.org/10.1109/IROS.2013.6697231
- [6] I. Havoutis et al., “Onboard perception-based trotting and crawling with the hydraulic quadruped robot (HyQ),” 2013 IEEE/RSJ Int. Conf. on Intelligent Robots and Systems, pp. 6052-6057, 2013. https://doi.org/10.1109/IROS.2013.6697235
- [7] H. Komatsu, G. Endo, R. Hodoshima, S. Hirose, and E. F. Fukushima, “How to optimize the slope walking motion by the quadruped walking robot,” Advanced Robotics, Vol.29, No.23, pp. 1497-1509, 2015. https://doi.org/10.1080/01691864.2015.1081103
- [8] S. Mamiya, S. Sano, and N. Uchiyama, “Foot structure with divided flat soles and springs for legged robots and experimental verification,” J. Robot. Mechatron., Vol.28, No.6, pp. 799-807, 2016. https://doi.org/10.20965/jrm.2016.p0799
- [9] N. Takahashi and K. Nonaka, “Model predictive leg configuration control for leg/wheel mobile robots that adapts to changes in ground level,” J. Robot. Mechatron., Vol.35, No.1, pp. 160-170, 2023. https://doi.org/10.20965/jrm.2023.p0160
- [10] K. Nagatani, H. Sato, H. Tasaka, A. Gofuku, and Y. Tanaka, “Development of optical communication marks for mobile robots to recognize their environment and to handle objects,” J. Robot. Mechatron., Vol.17, No.2, pp. 208-217, 2005. https://doi.org/10.20965/jrm.2005.p0208
- [11] B. K. Kim, K. Ohara, K. Kitagaki, and K. Ohba, “Design and control of librarian robot system in information structured environments,” J. Robot. Mechatron., Vol.21, No.4, pp. 507-514, 2009. https://doi.org/10.20965/jrm.2009.p0507
- [12] J. A. Marvel and R. Bostelman, “Test methods for the evaluation of manufacturing mobile manipulator safety,” J. Robot. Mechatron., Vol.28, No.2, pp. 199-214, 2016. https://doi.org/10.20965/jrm.2016.p0199
- [13] Y. Fukumoto, M. Jinnai, S. Bando, M. Takenaka, and H. Kobayashi, “Door opening and closing considering forces using a mobile manipulator with an admittance controlled arm,” J. Robot. Mechatron., Vol.35, No.6, pp. 1573-1582, 2023. https://doi.org/10.20965/jrm.2023.p1573
- [14] N. Koyachi, T. Arai, H. Adachi, A. Murakami, and K. Kawai, “Mechanical design of hexapods with integrated limb mechanism: MELMANTIS-1 and MELMANTIS-2,” Proc. of 1997 8th Int. Conf. on Advanced Robotics, pp. 273-278, 1997. https://doi.org/10.1109/ICAR.1997.620194
- [15] T. Takubo et al., “Integrated limb mechanism robot ASTERISK,” J. Robot. Mechatron., Vol.18, No.2, pp. 203-214, 2006. https://doi.org/10.20965/jrm.2006.p0203
- [16] K. Inoue and K. Ooe, “Development of working six-legged robots capable of locomotion and manipulation in three modes,” Proc. of 39th Int. Symp. on Robotics (ISR), pp. 365-370, 2008.
- [17] K. Inoue, K. Ooe, and S. Lee, “Pushing methods for working six-legged robots capable of locomotion and manipulation in three modes,” 2010 IEEE Int. Conf. on Robotics and Automation, pp. 4742-4748, 2010. https://doi.org/10.1109/ROBOT.2010.5509220
- [18] S. Aoyagi et al., “Proposal and development of arrayed sole sensor for legged robot and contact force detection using neural networks,” IEEE Sensors J., Vol.11, No.9, pp. 2048-2056, 2011. https://doi.org/10.1109/JSEN.2011.2109037
- [19] Y. Sato and K. Inoue, “Tripod gait for six-legged robots on deeply undulating terrain,” Proc. of the 6th Int. Conf. on Advanced Mechatronics (ICAM2015), pp. 185-186, 2015. https://doi.org/10.1299/jsmeicam.2015.6.185
- [20] Y. Honda, T. Kawaguchi, and K. Inoue, “Method for working six-legged robots of returning from reversed state on flat slope,” Proc. of the Robotics and Mechatronics Conf. 2023 (ROBOMECH2023), Article No.2P1-G11, 2023 (in Japanese).
- [21] K. Ikeda, T. Wakahara, and S. Mikami, “Legged mechanism that keeps stable movement for turning over,” Proc. of the 2012 JSME Conf. on Robotics and Mechatronics, Article No.2A1-U03, 2012 (in Japanese). https://doi.org/10.1299/jsmermd.2012._2A1-U03_1
- [22] N. Motoi, K. Sasahara, and A. Kawamura, “Switching control method for stable landing by legged robot based on zero moment point,” J. Robot. Mechatron., Vol.25, No.5, pp. 831-839, 2013. https://doi.org/10.20965/jrm.2013.p0831
- [23] C. Theeravithayangkura, T. Takubo, K. Ohara, Y. Mae, and T. Arai, “Adaptive gait for dynamic rotational walking motion on unknown non-planar terrain by limb mechanism robot ASTERISK,” J. Robot. Mechatron., Vol.25, No.1, pp. 172-182, 2013. https://doi.org/10.20965/jrm.2013.p0172
- [24] D. Morimoto, Y. Iwamoto, M. Hiraga, and K. Ohkura, “Generating collective behavior of a multi-legged robotic swarm using deep reinforcement leaning,” J. Robot. Mechatron., Vol.35, No.4, pp. 977-987, 2023. https://doi.org/10.20965/jrm.2023.p0977
- [25] C. Yang, K. Yuan, Q. Zhu, W. Yu, and Z. Li, “Multi-expert learning of adaptive legged locomotion,” Science Robotics, Vol.5, No.49, Article No.eabb2174, 2020. https://doi.org/https://doi.org/10.1126/scirobotics.abb2174
- [26] K. Yoshida, A. Nakajima, S. Inagaki, and N. Sakamoto, “Modeling of overturned multi-legged robot and leg-swing motion for recovery,” Proc. of the Robotics and Mechatronics Conf. 2021 (ROBOMECH2021), Article No.2P1-I02, 2021 (in Japanese).
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