| Title |
Robot Path Planning Method for Tracking Error Reduction |
| Authors |
김동준(Kim, Dong-Jun) ; 김갑일(Kim, Gap-Il) ; 박용식(Park, Yong-Sik) |
| Keywords |
path planning ; robot trajectory ; tracking ; error reduction ; path constrained |
| Abstract |
A lot of robot trajectory tracking methods are proposed to enhance the tracking error, but irregular tracking errors are always accompanied and very hard to reduce it. Up to now, these irregular tracking errors are reduced by introducing more complicated control algorithms. But, it is intuitively obvious to reduce only the big errors selectively in the irregular ones for the better performance instead of using more complicated control algorithms. By the characteristics of the robot, big tracking errors of the end-effector are generated mostly due to the fast moving of joint. So, in this paper, we introduce a new method which reduce the big tracking errors by clippings the joint velocity with the constraint of given path. Using this method, desired trajectory tracking is obtained within the far reduced error bound. Also, this method is successfully applied to generate the path-constrained error reducing trajectories for 2-axis SCARA type robot. |