Assessment of a tracked vehicle’s ability to traverse stairs
Tóm tắt
In some surveillance missions in the aftermath of disasters, the use of a teleoperated tracked vehicle contributes to the safety of rescue crews. However, because of its insufficient traversal capability, the vehicle can become trapped upon encountering rough terrain. This may lead to mission failure and, in the worst case, loss of the vehicle. To improve the success rate of such missions, it is very important to assess the traversability of a tracked vehicle on rough terrains based on objective indicators. From this viewpoint, we first derived physical conditions that must be satisfied in the case of traversal on stairs, based on a simple mechanical model of a tracked vehicle. We then proposed a traversability assessment method for tracked vehicles on stairs. In other words, we established a method to evaluate whether or not a tracked vehicle can traverse the target stairs. To validate the method, we conducted experiments with an actual tracked vehicle on our simulated stairs, and we observed some divergences between our calculation and the experimental result. Therefore, we analyzed possible factors causing these divergences, estimated the influence of the factors quantitatively by conducting additional experiments, and identified the reasons for the deviation. In this paper, we report the above-described assessment method, the experiments, and the analyses.
Tài liệu tham khảo
Yoshida T, Nagatani K, Tadokoro S, Nishimura T, Koyanagi E (2012) Improvements to the rescue robot Quince toward future indoor surveillance missions in the Fukushima Daiichi Nuclear Power Plant. In: Preprints of the 8th International Conference on field and service robotics, vol 80. Springer, Berlin, Heidelberg
Nagatani K, Kiribayashi S, Okada Y, Tadokoro S, Nishimura T, Yoshida T, Koyanagi E, Hada Y (2011) Redesign of rescue mobile robot Quince—toward emergency response to the nuclear accident at Fukushima Daiichi Nuclear Power Station on March 2011. In: Proceedings of the 2011 IEEE International workshop on safety, security and rescue robotics, pp 13–18. IEEE, USA
Tokyo Electric Power Co., Inc. (2012) Guide to citing Internet sources. http://www.tepco.co.jp/en/nu/fukushima-np/images/handouts_120417_03-e. Accessed 1 Mar 2012
Okada Y, Nagatani K, Yoshida K, Yoshida T, Koyanagi E (2010) Shared autonomy system for tracked vehicles to traverse rough terrain based on continuous three-dimensional terrain scanning. In: Proceedings of the 2010 IEEE/RSJ International Conference on intelligent robots and systems, pp 357–362. IEEE, USA
Ohno K, Morimura S, Tadokoro S, Koyanagi E, Yoshida T (2007) Semi-autonomous control system of rescue crawler robot having flippers for getting over unknown-steps. In: Proceedings of the 2007 IEEE/RSJ International Conference on intelligent robots and systems, pp 3012–3018. IEEE, USA
Ohno K, Takeuchi E, Chun V, Tadokoro S, Yuzawa T, Yoshida T, Koyanagi E (2009) Rollover avoidance using a stability margin for a tracked vehicle with sub-tracks. In: Proceedings of the 2009 IEEE International workshop on safety, security, and rescue robotics, pp 1–6. IEEE, USA
Magid E, Tsubouchi T, Koyanagi E, Yoshida T (2010) Static balance for rescue robot navigation: losing balance on purpose within random step environment. In: Proceedings of the 2010 IEEE/RSJ International Conference on intelligent robots and systems, pp 349–356. IEEE, USA
Guo Y, Song A, Bao J, Zhang H, Tang H (2010) Research on centroid position for stairs climbing stability of search and rescue robot. Int J Adv Robot Syst 7(4):24–30
Liu J, Wang Y, Ma S, Li B (2005) Analysis of stairs-climbing ability for a tracked reconfigurable modular robot. In: Proceedings of the 2005 IEEE International workshop on safety, security and rescue robotics, pp 36–40. IEEE, USA
Liu Yugang, Liu Guangjun (2009) Track-stair interaction analysis and online tipover prediction for a self-reconfirable tracked mobile robot climbing stairs. IEEE/ASE Trans Mech 14(5):528–538
Martens JD, Newman WS (1994) Stabilization of a mobile robot climbing stairs. In: Proceedings of the International Conference on robotics and automation, pp 2501–2507. IEEE, USA
Yoshida T, Koyanagi E, Tadokoro S, Yoshida K, Nagatani K, Ohno K, Tsubouchi T, Maeyama S, Noda I, Takizawa O, Hada Y (2007) A high mobility 6-crawler mobile Robot “Kenaf.” In: Proceedings of the 4th International workshop on synthetic simulation and robotics to mitigate earthquake disaster, p 38
Ohno K, Tadokoro S, Nagatani K, Koyanagi E, Yoshida T (2010) Trials of 3D Map construction using the tele-operated tracked vehicle Kenaf at Disaster City. In: 2010 IEEE International Conference on robotics and automation, pp 2864–2870
Hirose S et al Normalized energy stability margin: generalized stability criterion for walking vehicles. In: Proceedings of the International Conference on climbing and walking robots, pp 71–76. Springer, Berlin, Heidelberg