The inverse kinematics solution of an industrial robot may provide multiple robot configurations that all achieve the required goal position of the manipulator. In the absence of obstacles, multiplicity resolution can be achieved by selecting the robot configuration closest to the current robot configuration in the joint space. An evolutionary approach based on a real-coded genetic algorithm is...

This paper presents a numerical implementation of inverse and direct kinematics of a 3-DOF parallel robot with R-P-S (Revolute-Prismatic-Spherical) joint structure using Matlab. The robot has two degrees of orientation freedom and one degree of translatory freedom. The inverse kinematics was expressed in term of Z-Y-Z Euler angles and direct kinematics was solved numerically using Newton-Kantor...

Most researches so far on robot control have assumed that the exact kinematics and Jacobian matrix of the manipulator from joint space to Cartesian space are known. Unfortunately, no physical parameters could be derived exactly. In addition, the robot is required to interact with its environment and hence the overall parameters would change according to different tasks. In this paper, simple fe...

Aiming at one kind of 3-PRS parallel robot, the study develops a toolbox in MATLAB. The toolbox includes functions for forward kinematics, inverse kinematics, velocity kinematics, error analysis, schematic representation, and so on. The architecture of the 3-PRS robot is introduced firstly. The instructions of the functions, developing procedure and main algorithms are presented secondly. The t...

With the widespread application of robots in aerospace, medicine, automation, and other fields, their motion safety is essential for well-being humans accomplishment vital socially beneficial programs. Conventional robot hardware software designs mainly rely on experiential knowledge manual testing to ensure safety, but this fails cover all possible paths adds risks. Alternatively, formal, math...

This paper addresses trajectory tracking of an omni-directional mobile robot (OMR) with three mecanum wheels and a fully symmetrical configuration. The omni-directional wheeled robot outperforms the non-holonomic wheeled robot due to its ability to rotate and translate independently and simultaneously. A kinematics model of the OMR is established and a model predictive control (MPC) algorithm w...