4Chiba Institute of Technology. Hibiscus, The New Rescue Robot[EB/OL]. (2006-06-05) [2009-03-18]. http://www. techfresh.net/hibiscus-the-new-rescue-robot.
5Chen C X, Trivedi M M. Reactive locomotion control of articulated-tracked mobile robots for obstacle negotiation[C]// IEEE/RSJ International Conference on Intelligent Robots and Systems. Piscataway, NJ, USA: IEEE, 1993: 1349-1356.
6Choi B S, Song S M. Fully automated obstacle-crossing gaits for walking machines[J]. IEEE Transactions on Systems, Man and Cybernetics, 1998, 18(6): 952-964.
7Liu J G, Wang Y C, Ma S G, et al. Analysis of stairs-climbing ability for a tracked reconfigurable modular robot[C]//IEEE International Workshop on Safety, Security and Rescue Robotics. Piscataway, NJ, USA: IEEE, 2005: 36-41.
