Abstract
Recently, legged robots have been developed to work in a dangerous space for an investigation, rescue, and so on. This paper introduces a method for a Limb-type robot to move in frame structures such as a ladder or jungle-gym. The proposed method is based on path planning and motion generation. For path planning problem, A* algorithm plans a path while taking the workspace of limbs of the robot in consideration. The robot can then move along the resultant path, and the robot need to stop to hold new supported position on the way. The velocity change for stoppages is decided by mechanical constrains of the robot. The motion is generated from the velocity by Inverse kinematics. After the method is explained, kinematic simulation is conducted, and some problems and the improvement plans are indicated.
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