Autonomous stair-hopping with Scout robots

Search and rescue operations in large disaster sites require quick gathering of relevant information. Both the knowledge of the location of victims and the environmental/structural conditions must be available to safely and efficiently guide rescue personnel. A major hurdle for robots in such scenarios is stairs. A system for autonomous surmounting of stairs is proposed in which a Scout robot jumps from step to step. The robot's height is only about a quarter step in size. Control of the Scout is accomplished using visual servoing. An external observer such as another robot is brought into the control loop to provide the Scout with an estimation of its pose with respect to the stairs. This cooperation is necessary as the Scout must refrain from ill-fated motions that may lead it back down to where it started its ascend. Initial experimental results are presented along with a discussion of the issues involved.

[1]  Maria L. Gini,et al.  Enlisting rangers and scouts for reconnaissance and surveillance , 2000, IEEE Robotics Autom. Mag..

[2]  Nikolaos Papanikolopoulos,et al.  Localization of miniature mobile robots using constant curvature dynamic contours , 2002, Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292).

[3]  M. Gini,et al.  Visual servoing of a miniature robot toward a marked target , 2002, 2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628).

[4]  Martin Buehler,et al.  SCOUT: a simple quadruped that walks, climbs, and runs , 1998, Proceedings. 1998 IEEE International Conference on Robotics and Automation (Cat. No.98CH36146).

[5]  Andrew B. Kahng,et al.  Cooperative Mobile Robotics: Antecedents and Directions , 1995, Proceedings 1995 IEEE/RSJ International Conference on Intelligent Robots and Systems. Human Robot Interaction and Cooperative Robots.

[6]  F. Littmann,et al.  A trainlike vehicle for intervention missions inside nuclear plants , 1992 .

[7]  Konstantinos A. Tarabanis,et al.  Computing Occlusion-Free Viewpoints , 1996, IEEE Trans. Pattern Anal. Mach. Intell..

[8]  Larry H. Matthies,et al.  Vision-guided autonomous stair climbing , 2000, Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation. Symposia Proceedings (Cat. No.00CH37065).

[9]  Nikolaos G. Bourbakis.  Kydonas-an autonomous hybrid robot: walking and climbing , 1998, IEEE Robotics Autom. Mag..

[10]  Zack J. Butler,et al.  Self-reconfiguring robots , 2002, CACM.

[11]  Fabrice R. Noreils,et al.  Toward a Robot Architecture Integrating Cooperation between Mobile Robots: Application to Indoor Environment , 1993, Int. J. Robotics Res..

[12]  Alex Fukunaga,et al.  Cooperative mobile robotics: antecedents and directions , 1995 .

[13]  Peter I. Corke,et al.  A tutorial on visual servo control , 1996, IEEE Trans. Robotics Autom..

[14]  Stefan A. Blum,et al.  OSCAR - Eine Systemarchitektur für den autonomen mobilen Roboter MARVIN , 2000, AMS.

[15]  Hajime Asama,et al.  Functional complement by cooperation of multiple autonomous robots , 1994, Proceedings of the 1994 IEEE International Conference on Robotics and Automation.

[16]  Tatsuo Arai,et al.  Mechanism and control of a leg-wheel hybrid mobile robot , 1999, Proceedings 1999 IEEE/RSJ International Conference on Intelligent Robots and Systems. Human and Environment Friendly Robots with High Intelligence and Emotional Quotients (Cat. No.99CH36289).

[17]  Pradeep K. Khosla,et al.  Mechatronic design of a modular self-reconfiguring robotic system , 2000, Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation. Symposia Proceedings (Cat. No.00CH37065).