the problem of observer design for nonlinear systems has got great attention in the recent literature. the nonlinear observer has been a topic of interest in control theory. in this research, a modified robust sliding-mode observer (smo) is designed to accurately estimate the state variables of nonlinear systems in the presence of disturbances and model uncertainties. the observer has a simple ...

Impedance control is one of the most effective control methods for interaction between a robotic manipulator and its environment. Robot impedance control regulates the response of the manipulator to contact and virtual impedance control regulates the manipulator’s response before contact. Although these impedance parameters may be regulated using neural networks, conventional methods do not con...

In this paper we present a uniied approach for solving the inverse kinematics problem of an arbitrary robotic manipulator based on Genetic Algorithms. The tness function we use in our algorithm does a multi-objective optimization satisfying both the position and orientation of the end-eeector. As an example we show how this approach can be used for computing the motion of an n-R robotic manipul...

Results from simulations of a Planar Robot Model, when it is placed in the same plane of the action of the gravity force are reviewed in this paper. The model includes several parameters usually discarded in current models, such as Driving, and Non-linear Friction, for an industrial-type robotic manipulator and its actuators. When we develop more exact representations of the dynamics of a manip...

Skilled mechanical arms of consanguine relationship formed by joints the relative motion of the adjacent interfaces enable, have been connected. Ability to perform a variety of pre-programmed robotic manipulator in various industries. Skilled mechanical arms in recent years as a significant progress has been completed. House repair and easier to work with them as well and fit and optimal relati...

Unlike robotics in the manufacturing industry, on-site construction robotics has to consider and address two unique challenges: 1) the rugged, evolving, and unstructured environment of typical work sites; 2) the reversed spatial relationship between the product and the manipulator, i.e. the manipulator has to travel to and localize itself at the work face, rather than a partially complete produ...

This paper addresses the tracking control problem of robotic manipulators with unknown and changing dynamics . In this study , nonlinear dynamics of the robotic manipulator is assumed to be unknown and a control scheme is developed to adaptively estimate the unknown manipulator dynamics utilizing generic artificial neural network models to approximate the underlying dynamics . Based on the erro...

The presented robotic system has been designed and dedicated to remote control video cameras away from monitoring workspaces. The idea of the system is that the camera is installed on the flying platform of the cable driven manipulator. The manipulator is the slave part of the robotic system similar to the standard inverted Stewart platform that features six degrees of freedom. The presented ma...

We extend the standard de nition of manipulability to the case of a nonholonomic mobile manipulator built from an n joint robotic arm and a nonholonomic mobile platform. The e ects of mounting the arm on a nonholonomic platform are shown through the analysis of the manipulability thus de ned. Applications of criteria inherited from manipulability considerations are given to justify design and t...

In this paper an innovative method for robotic manipulator kinematic control and supervision is proposed, both locally, by operator panel, both remote by the use of short-message. A programmable logical controller (PLC) is adopted to obtain a versatile and applicable solution in any robotic system. In particular the problem of end effector positioning in a desired point of the work space of an ...