mobile robot navigation is one of the basic problems in robotics. in this paper, a new approachis proposed for autonomous mobile robot navigation in an unknown environment. the proposedapproach is based on learning virtual parallel paths that propel the mobile robot toward the trackusing a multi-layer, feed-forward neural network. for training, a human operator navigates themobile robot in some...

This contribution presents the workspace analysis process leading to the development of the concept of a New University of Western Australia Robot NUWAR. NUWAR is a variation of the well-known Del leI robot. It is of particular interest to detennine, for given dimensions of a manipulator, how the size and shape ofthe robot workspace vary with values of two angles defming the orientation of moto...

As known as Parallel-Link Robot, Delta Robot is a kind of Manipulator that consists three arms mounted in parallel. has central joint constructed an end-effector represented gripper. An Analysis Inverse Kinematic (IK) used to convert the trajectory (X, Y) into rotations stepper motors (ZA, ZB and ZC). The proposed method Artificial Neural Networks (ANNs) simplify process IK solver. solver gener...

The paper presents a new method for online identification of pay-loads for a two-link flexible robot. The method benefits from the close correspondence between parameters of a discrete-time model represented by means of the Delta-Operator, and those of the underlying continuous-time model. Although the applied principle might be general in nature, the paper is applied to the well-known problem ...

The TwinCAT Supplement ‘TwinCAT Kinematic Transformation’ is presented in this application example. This supplement makes it possible to compute robot kinematics together with the PLC and Motion Control on one PC-based CPU. Analogous to the TwinCAT Motion Control package (integration of the drive control in the controller), a robot kinematics is configured and parameterised with the ‘Kinematic ...

Accuracy of tracking and robustness are very important specifications in control of parallel robots. Classical control methods could not satisfy these requirements in parallel robots, simultaneously. Sliding mode control solves problems of accurate tracking, but it is not robust enough because of influence of chattering phenomena. Implementation of fuzzy logic in sliding mode enhances robustnes...

The concept of a medical robot constructed by parallel mechanisms for chest compressions in rescuing a patient is proposed in this paper. In light of the requirements of cardiopulmonary resuscitation (CPR) from medical aspects, a new translational parallel manipulator employing the architecture of DELTA parallel robot is designed, which utilizes an architectural optimization methodology for suc...

The workspace of a parallel manipulator is usually smaller than the size of the robot itself. It is important to derive new structures that enjoy the advantages of parallel manipulators and also have a large workspace. In this paper we present two configurations of similar structures RRRS and RRSR with rotating links. The RRRS structure has a relatively large workspace—larger than the size of t...

as a robot could be stable statically standing on three or more legs, a six legged walking robot can be highly flexible in movements and perform different missions without dealing with serious kinematic and dynamic problems. an experimental six legged walking robot with 18 degrees of freedom is studied and built in this paper. the kinematic and gait analysis formulations are demonstrated by an e...