Welcome to the Spherical Mobile Robots website,

    Here you can find out more about spherical mobile robots such as research projects, works-in-progress, existing prototypes, possible applications, and commercial spherical robots.


    Research Projects

    Robot Description Photo / Video
    BYQ Spherical robot,

    - Beijing University of Posts and Telecommunications, School of Automation, Beijing, China.

    Key researchers and scholars:
    • Hanxu Sun
    • Qingxuan Jia
    • Yanheng Zhang
    • Daliang Liu
    Selected References:
    1. Jia, QingXuan, HanXv Sun, and DaLiang Liu. "Analysis of actuation for a spherical robot." In 2008 IEEE Conference on Robotics, Automation and Mechatronics, pp. 266-271. IEEE, 2008.
    2. Liu, DaLiang, HanXv Sun, and QingXuan Jia. "Stabilization and path following of a spherical robot." In 2008 IEEE Conference on Robotics, Automation and Mechatronics, pp. 676-682. IEEE, 2008.
    Spherical Underwater Robot / Amphibious Spherical Robot / Turtle-Inspired Spherical Mother Robot,

    - Kagawa University, Faculty of Engineering, Takamatsu, Japan.
    - Graduate School of Engineering, Kagawa University, Takamatsu, Japan.
    - Beijing Institute of Technology, Key Laboratory of Convergence Medical Engineering System and Healthcare Technology, and Key Laboratory of Biomimetic Robots and Systems,Beijing, China.
    - Tianjin University of Technology, Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems, Tianjin, China

    Key researchers and scholars:
    • Jian Guo
    • Shuxiang Guo
    • Shaowu Pan
    • Kun Tang
    • Liwei Shi
    • Chunfeng Yue
    • Yanlin He
    • Maoxun Li
    Selected References:
    1. Lin, Xichuan, and Shuxiang Guo. "Development of a spherical underwater robot equipped with multiple vectored water-jet-based thrusters." Journal of Intelligent & Robotic Systems 67, no. 3-4 (2012): 307-321.
    2. Shi, Liwei, Shuxiang Guo, Shilian Mao, Chunfeng Yue, Maoxun Li, and Kinji Asaka. "Development of an amphibious turtle-inspired spherical mother robot." Journal of Bionic Engineering 10, no. 4 (2013): 446-455.
    3. Li, Maoxun, Shuxiang Guo, Hideyuki Hirata, and Hidenori Ishihara. "Design and performance evaluation of an amphibious spherical robot." Robotics and Autonomous Systems 64 (2015): 21-34.
    4. He, Yanlin, Shuxiang Guo, Liwei Shi, Shaowu Pan, and Zhe Wang. "3D printing technology-based an amphibious spherical robot." In 2014 IEEE International Conference on Mechatronics and Automation, pp. 1382-1387. IEEE, 2014.
    5. Bi, Lin, Jian Guo, Shuxiang Guo, and Zhendong Zhong. "Kinematic analysis on land of an amphibious spherical robot system." In 2015 IEEE International Conference on Mechatronics and Automation (ICMA), pp. 2082-2087. IEEE, 2015.
    Spherical Mobile Robot,

    - School of Mechanical Engineering, University of Tehran, Iran.

    Key researchers and scholars:
    • M. Mahjoob
    • H. Vahid Alizadeh
    • M. Roozegar
    Selected References:

    1. H. Vahid Alizadeh, Mohammad J. Mahjoob, "Quadratic Damping Model for a Spherical Mobile Robot Moving on the Free Surface of the Water," IEEE International Symposium on Robotic and Sensors Environments, Montreal, Quebec, 2011, pp. 125-130. (IEEE Xplore)

    2. M. Kamaldar, M. J. Mahjoob, M. R. Ha`eri Yazdi, H. Vahid Alizadeh, "Robust Speed Control of a Spherical Robot Using ARX Uncertain Modeling," IEEE International Symposium on Robotic and Sensors Environments, Montreal, Quebec, 2011, pp. 196-201. (IEEE Xplore)

    3. M. Kamaldar, M. J. Mahjoob, H. Vahid Alizadeh, "A Control Synthesis for Reducing Lateral Oscillations of a Spherical Robot", IEEE International Conference on Mechatronics, Istanbul, Turkey, 2011, pp. 546-551. (IEEE Xplore)

    4. H. Vahid Alizadeh, M. J. Mahjoob, "Effect of Incremental Driving on a Vision-Based Path Planning of a Spherical Robot," IEEE Second International Conference on Computer and Electrical Engineering, Dubai, 2009, Vol. 1, pp. 299-303. (IEEE Xplore)




    Ref:[1]

    FlexBall,
    Flexible pendulum-driven ball-shaped robot

    - Aalto University School of Electrical Engineering, Finland

    Key researchers and scholars:
    • Tomi J. Ylikorpi
    • Aarne J. Halme
    • Pekka J. Forsman
    Selected References:
    1. Ylikorpi, T.J., Halme, A.J. and Forsman, P.J., "Dynamic modeling and obstacle-crossing capability of flexible pendulum-driven ball-shaped robots." Robotics and Autonomous Systems, Elsevier, 87, pp.269-280, 2017.

    Ref: [1]
    Four-Pendulum Omnidirectional Spherical Robot,

    - School of Engineering and Technology, Central Michigan University, United States

    Key researchers and scholars:
    • Brian P. DeJong
    • Ernur Karadogan
    • Kumar Yelamarthi
    • James Hasbany
    Selected References:
    1. DeJong, B. P., Karadogan, E., Yelamarthi, K., Hasbany, J., "Design and Analysis of a Four-Pendulum Omnidirectional Spherical Robot." Journal of Intelligent & Robotic Systems, 1-13.

    Ref: [1]
    BHQ-3 Spherical Robot,

    - Beihang University, Robotics Institute, Beijing, China.

    Key researchers and scholars:
    • Qiang Zhan
    • Yao Cai
    Selected References:
    1. Cai, Yao, Qiang Zhan, and Xi Xi. "Path tracking control of a spherical mobile robot." Mechanism and Machine Theory 51 (2012): 58-73.
    2. Zhan, Qiang, Yao Cai, and Caixia Yan. "Design, analysis and experiments of an omni-directional spherical robot." In Robotics and Automation (ICRA), 2011 IEEE International Conference on, pp. 4921-4926. IEEE, 2011.
    HIT Spherical Robot,

    - Harbin Institute of Technology, State Key Laboratory of Robotics and System, Harbin, China.

    Key researchers and scholars:
    • Ming Yue
    • Bo Zhao
    Selected References:
    1. Liu, Baoyin, Ming Yue, and Rong Liu. "Motion control of an underactuated spherical robot: A hierarchical sliding-mode approach with disturbance estimation." In 2012 IEEE International Conference on Mechatronics and Automation, pp. 1804-1809. IEEE, 2012.
    2. Zhao, Bo, Mantian Li, Haitao Yu, Haiyan Hu, and Lining Sun. "Dynamics and motion control of a two pendulums driven spherical robot." In Intelligent Robots and Systems (IROS), 2010 IEEE/RSJ International Conference on, pp. 147-153. IEEE, 2010.
    3. Ming, Yue, Deng Zongquan, Yu Xinyi, and Yu Weizhen. "Introducing HIT spherical robot: dynamic modeling and analysis based on decoupled subsystem." In 2006 IEEE International Conference on Robotics and Biomimetics, pp. 181-186. IEEE, 2006.
    Spherical Rolling Robot,

    - Xidian University, School of Electromechanical Engineering, Xi'an, China

    Key researchers and scholars:
    • Tuanjie Li
    • Zuowei Wang
    • Zhifei Ji
    Selected References:
    1. Li, T., Wang, Z. and Ji, Z., "Dynamic Modeling and Simulation of the Internal-and External-Driven Spherical Robot." In Journal of Aerospace Engineering, 25(4), pp.636-640, 2011.
    Spherobot,

    - Michigan State University, Department of Mechanical Engineering, East Lansing, United States

    Key researchers and scholars:
    • Mukherjee, Ranjan
    • Mark A. Minor
    • Filip Tomik
    • Shahin Nudehi
    • Louis L. Flynn
    Selected References:
    1. Tomik, F., Nudehi, S., Flynn, L.L. and Mukherjee, R., "Design, fabrication and control of spherobot: a spherical mobile robot." Journal of Intelligent & Robotic Systems, 67(2), pp.117-131, 2012.
    2. Mukherjee, R. and Minor, M.A., "A simple motion planner for a spherical mobile robot." IEEE/ASME International Conference on Advanced Intelligent Mechatronics, pp. 896-901, 1999.
    Rollo - Generation 3,

    - Automation Technology Laboratory, Department of Automation and Systems Technology of the Helsinki University of Technology (TKK)
    - Department of Automation and Systems Technology of the Aalto University, School of Electrical Engineering

    Key researchers and scholars:
    • Aarne Halme
    Selected References:
    1. Halme, A., Schonberg, T., & Wang, Y., "Motion control of a spherical mobile robot." IEEE 4th International Workshop on Advanced Motion Control, vol. 1, pp. 259-264, 1996.
    from TKK website: http://autsys.aalto.fi/en/Rollo
    Spherical robot,

    Developed at Dynamics and Control Lab, IIT Madras, India. 5-DOF nonholonomic robot, Actuated by internal reaction wheels.

    Key researchers and scholars:
    • Vijay Muralidharan
    Selected References:
    1. Muralidharan V., Mahindrakar A. D., "Geometric controllability and stabilization of spherical robot dynamics", IEEE Transactions on Automatic Control, 60(10), 2762-2767, 2015.
    Rosphere,

    Robotics and Cybernetics Research Group , Universidad Politécnica de Mardrid, Spain

    Key researchers and scholars:
    • Juan D. Hernández
    • Jorge Barrientos
    • Jaime del Cerro
    • Antonio Barrientos
    • David Sanz
    Selected References:
    1. Hernández, Juan D., Jorge Barrientos, Jaime del Cerro, Antonio Barrientos, and David Sanz. "Moisture measurement in crops using spherical robots." Industrial Robot: An International Journal 40, no. 1, 59-66, 2013.
    Omnibola,

    Department of Mechanical Engineering, University of Málaga, Málaga, Spain

    Key researchers and scholars:
    • Mariano Jaimez
    • Juan J. Castillo
    • Francisco García
    • Juan A. Cabrera
    Selected References:
    1. Jaimez, M., Castillo, J. J., García, F., & Cabrera, J. A. "Design and modelling of Omnibola©, a spherical mobile robot" Mechanics based design of structures and machines, 40(4), 383-399, 2012.



    Some other cool spherical robots and commercial spherical robots

    Robot Description Photo / Video
    Roball, Spherical Robot,

    - IntRoLab, Universite de Sherbrooke, Canada
    - Universite de Sherbrooke, Department of Electrical & Computer Engineering, Canada
    - Bishop's Universite, Department of Computer Science, Sherbrooke, Canada

    Key researchers and scholars:
    • Michaud, François Thomas
    • Letourneau, Dominic
    • Caron, Serge
    • Salter, Tamie
    Selected References:
    1. Salter, T., Michaud, F., Larouche, H. (2010), "How wild is wild? A taxonomy to categorize the wildness of child-robot interaction," International Journal of Social Robotics, 2(4):405-415.
    2. Salter, T., Michaud, F. (2010), "Innovations in robotic devices and autism," book chapter contribution on Pediatric Rehabilitation Engineering: From Disability to Possibility.
    3. Salter, T., Michaud, F., Letourneau, D. (2009), "A preliminary investigation into the effects of adaptation in child-robot interaction," Proceedings FIRA International Conference on Social Robotics, August.
    Spherical vehicle with flywheel momentum storage,

    Massachusetts Institute of Technology, Department of Mechanical Engineering

    Key researchers and developers:
    • Gregory C. Schroll
    Selected References:
    1. Thesis (M.S.)- Colorado State University, Dept. of Mechanical Engineering, 2010. Link)
    2. Thesis (B.S.)- Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008. Link)
    QueBall,

    Developed by Que Innovations Company



    Sphero, BB-8, and SPRK,

    Designed and Developed by Sphero Company (previously Orbotix) The BB-8 is a droid character in the 2015 film Star Wars: The Force Awakens.



    MorpHex,

    Designed and developed by Kåre Halvorsen - Zenta Robotic Creations



    Imperia Rotundus,

    Universidad Nacional Experimental Politécnica (UNEXPO), Venezuela

    Designed and developed by Juan Cols,



    Solar-ball
    Solar-powered spherical robot

    Ref

    Two spherical robots, named Mowgli and Baloo

    Designed and developed by Garrett Parrish



    GroundBot

    Designed and developed by Rotundus Company



    Ball-Shaped Robot
    On the base of a Lego Mindstorms NXT.

    Designed and developed by Nils Völker



    Naughty Ball
    University of California Davis Students Build Robotic Project.






    I am a fan of robotics and more specifically spherical mobile robots. I am a PhD student at McGill University. I have designed and built a spherical robot as part of my M.Sc. Project. Below you can see the photos of my spherical mobile robot. It started as a programmable mobile robot. It has since evolved into a mobile robot that performs tasks with a high degree of autonomy. It has wireless communication with a PC and a camera. A vision-based navigation algorithm is developed to automatically control the motion of the robot.

               
    Click on image to enlarge

    More details about my research can be found on my personal website. A full list of my papers on Spherical mobile robots can be found here. Below are titles of some of them:

    - Quadratic Damping Model for a Spherical Mobile Robot Moving on the Free Surface of the Water, IEEE Xplore
    - A Control Synthesis for Reducing Lateral Oscillations of a Spherical Robot, IEEE Xplore
    - Effect of Incremental Driving on a Vision-Based Path Planning of a Spherical Robot, IEEE Xplore

    Your comments and feedback are most welcome (My email: ).