Abstract
Implementing tele-assistance or supervisory control for autonomous subsea robots requires atomic actions that can be called from high level task planners or mission managers. This paper reports on the design and implementation of a particular atomic action for the case of a subsea robot carrying out tasks in contact with the surrounding environment.
Subsea vehicles equipped with manipulators can have upward of 11 degrees of freedom (DOF), with degenerate and redundant inverse kinematics. Distributed local motion planning is presented as a means to specify the motion of each robot DOF given a goal point or trajectory. Results are presented to show the effectiveness of the distributed versus non-distributed approach, a means to deal with local minima difficulties, and the performance for trajectory following with and without saturated joint angles on a robot arm.
Consideration is also given to the modelling of hydraulic underwater robots and to the resulting design of hybrid position/force control strategies. A model for a hydraulically actuated robot is developed, taking into account the electrohydraulic servovalve, the bulk modulus of oil, piston area, friction, hose compliance and other arm parameters. Open and closed-loop control results are reported for simulated and real systems.
Finally, the use of distributed motion planning and sequential position/force control of a Slingsby TA-9 hydraulic underwater manipulator is described, to implement an atomic action for tele-assistance. The specific task of automatically positioning and inserting a Tronic subsea mateable connector is illustrated, with results showing the contact conditions during insertion.
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References
Archer, J.R. and Blenkinsop, P.T. 1983. Actuation for industrial robots. In IMechE Conference on Electric Versus Hydraulic Drives, London.
Barraquand, J. and Latombe, J.C. 1991. Robot motion planning: A distributed representation approach. Int. Jrnl Robot. Rsch., 10(6):628–649.
Brookes, R.A. 1983. Solving the find-path problem by good representation of free space. IEEE Trans. Systems Man and Cybernetics (SMC), SMC-13(3):190–197.
Brookes, R.A. and Lozano-Perez, T. 1983. A subdivision algorithm in configuration space for findpath with rotation. Proc. 8th IJCAI, pp. 799–806.
Clegg, A.C. 1992. Real time trajectory interpolation for robotic manipulators. Research Memo RM/92/2, Heriot-Watt University, Edinburgh.
Clegg, A.C. 1994. The mechanics and modelling of hydraulically actuated manipulators. Heriot-Watt University Research Memo RM/94/8, Heriot-Watt University, Edinburgh, Scotland.
Dunnigan, M.W, Clegg, A.C., and Lane, D.M. 1992. Self-tuning control of a 7 function hydraulically powered underwater manipulator. Proc. ICARV, Singapore.
Faverjon, B. and Tournassoud, P. 1987. A local based approach for path planning of manipulators with high degrees of freedom. Proc. IEEE Int. Conf. Rob. and Aut., pp. 1152–1159.
Hogan, N. 1985. Impedance control: An approach to manipulation, Parts I, II and III. Transactions of ASME, Journal of Dynamic Systems, Measurement and Control, (107).
Kazerooni, H., Sheridan, T.B., and Houpt, P.K. 1986. Robust compliant motion for manipulators, Part II: Design method. IEEE Journal of Robotics and Automation, RA-2(2):93–105.
Khatib, O.1986. Real-time obstacle avoidance for manipulators and mobile robots. Int. Jrnl. Robot Rsch, 5(1):90–98.
Khosla, P. and Volpe, R. 1988. Superquadric artificial potentials for obstacle avoidance and approach. IEEE Int. Conf. Robotics and Automation, pp. 1178–1184.
Koditschek, D.E. 1989. Robot motion planning and control by means of potential functions. Robotics Review, O. Khatib, J.J. Craig, and T. Lozano Perez (Eds.), MIT Press.
Kotzev, A., Cherchas, D.B., Lawrence, P.D., and Sepehri, N. 1992. Generalised predictive control of a robotic manipulator with hydraulic actuators. Robotica, 10:447–459.
Lane, D.M. and Knightbridge, P.J. 1995. Task planning and world modelling for supervisory control of robots in unstructured environments. Proc. IEEE Int. Conf. Rob. and Aut., Nagoya, Japan.
Latombe, J.C. 1991, Robot Motion Planning, Kluwer.
Lozano-Perez, T. 1981. Automatic planning of manipulator transfer movements. IEEE SMC, 11(6):681–698.
Lozano-Perez, T. 1987. A simple motion planning algorithm for general robot manipulators. IEEE Journal Robotics and Automation RA-3(3):224–238.
Mason, M.T. 1981. Compliance and force control for computer controlled manipulators. IEEE Transactions on Systems, Man and Cybernetics, SMC-II(6):418–432.
Nilsson, N.J. 1969. A mobile automaton: An application of AI techniques. Proc. 1st IJCAI, pp. 509–520.
O’Dunlaing, C., Sharir, M., and Yap, C.K. 1983. Retraction: A new approach to motion planning. Proc. 15th ACM Symp. Theory of Computing, pp. 207–220.
Quinn, A.W. 1993. An analysis of motion planning for manipulators using distributed search. Ph.D. Thesis, Heriot-Watt University.
Raibert, M.H. and Craig, J.J. 1981. Hybrid position/force control of manipulators. Transactions of ASME. Journal of Dynamic Systems. Measurement and Control, 102:126–133.
Rosen, K.H. 1983. Discrete Mathematics and Its Applications. McGraw-Hill: 2nd ed., pp 319–324.
Samson, C., Le Borgne, M., and Espiau, B. 1991. Robot Control—The Task Function Approach, Clarendon Press: Oxford.
Schwartz, J.T. and Sharir, M. 1983. On the piano movers problem: I. The case of a 2D rigid polygonal body moving amidst polygonal barrier. Comm. Pure Maths., 36:345–398.
Sepehri, N., Dumont, G.A.M., Lawrence, P.D., and Sassani, F. 1990. Cascade control of hydraulically actuated manipulators. Robotica, 8:207–216.
Stringer, J.D. 1982. Hydraulic Systems Analysis, MacMillan Press: London.
Thayer, W.J. 1965. Transfer functions for MOOG servovalves. MOOG Technical Bulletin 103, MOOG Controls, New York.
Walker, D.G.W. 1983. Electric and hydraulic drives for heavy industrial robots. In IMechE Conference on Electric Versus Hydraulic Drives, London.
Whitney, D.E. 1985. Historical perspective and state-of-the-art in robot force control. IEEE Proceedings of the International Conference on Robotics and Automation, pp. 262–268.
Zhu, D. and Latombe, J. 1991. New heuristic algorithms for efficient hierarchical path planning. IEEE Trans. Robotics and Automation, 7(1):9–20.
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© 1996 Kluwer Academic Publishers
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Lane, D.M., Dunnigan, M.W., Quinn, A.W., Clegg, A.C. (1996). Motion Planning and Contact Control for a Tele-Assisted Hydraulic Underwater Robot. In: Yuh, J., Ura, T., Bekey, G.A. (eds) Underwater Robots. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1419-6_9
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DOI: https://doi.org/10.1007/978-1-4613-1419-6_9
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