Climbing up onto Steps for Limb Mechanism Robot "ASTERISK"

A method for limb mechanism robot "ASTERISK" of climbing up onto steps which are higher than its body is proposed. Basically the robot climbs by wave gait; depending on the step height, the robot dynamically changes its leg stepping sequence. It inclines its body so that its legs can reach up onto the step. When the robot lifts its legs up, it calculates the stability margin by measuring the body orientation with its acceleration sensor. The robot also detects the contact between the feet and step using joint compliance. As the result of experiment, the robot could climb up onto a 230(mm) high step.

[1]  Hyung Seok Kim,et al.  Design of quadruped walking and climbing robot , 2003, Proceedings 2003 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2003) (Cat. No.03CH37453).

[2]  Shigeo Hirose,et al.  Design of prismatic quadruped walking vehicle TITAN VI , 1991 .

[3]  Shigeo Hirose,et al.  TITAN VII: quadruped walking and manipulating robot on a steep slope , 1997, Proceedings of International Conference on Robotics and Automation.

[4]  Martin Buehler,et al.  Stable Stair Climbing in a Simple Hexapod Robot , 2001 .

[5]  Shigeo Hirose,et al.  Design of a quadruped walking vehicle for dynamic walking and stair climbing , 1994, Adv. Robotics.

[6]  Tatsuo Arai,et al.  Control of walk and manipulation by a hexapod with integrated limb mechanism: MELMANTIS-1 , 2002, Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292).

[7]  Jorge Angeles,et al.  Motion Study of an Omni-Directional Rover for Step Climbing , 2005, Proceedings of the 2005 IEEE International Conference on Robotics and Automation.

[8]  Hyoukryeol Choi,et al.  Gait Planning of Quadruped Walking and Climbing Robot for Locomotion in 3D Environment , 2005, Proceedings of the 2005 IEEE International Conference on Robotics and Automation.

[9]  Martin Buehler,et al.  Towards Dynamic Step Climbing For A Quadruped Robot with Compliant Legs , 2000 .

[10]  Shigeo Hirose,et al.  Normalized energy stability margin and its contour of walking vehicles on rough terrain , 2001, Proceedings 2001 ICRA. IEEE International Conference on Robotics and Automation (Cat. No.01CH37164).