A sliding mode control algorithm combined with a fuzzy control scheme is developed for the trajectory control of a robot manipulator. The scheme is used to compensate for the influence of unmodeled dynamics and to red...
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ISBN:
(纸本)0818681381
A sliding mode control algorithm combined with a fuzzy control scheme is developed for the trajectory control of a robot manipulator. The scheme is used to compensate for the influence of unmodeled dynamics and to reduce chattering. Simulation results show that the proposed controller gives good system performance in the face of uncertain system parameters and external disturbances.
The concept and theoretical derivation of a new, continuous controller for contact transition tasks was presented in an early paper [25]. The design of this new controller was derived based on an analysis of impulsive...
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ISBN:
(纸本)0818681381
The concept and theoretical derivation of a new, continuous controller for contact transition tasks was presented in an early paper [25]. The design of this new controller was derived based on an analysis of impulsive constraints. Unlike other control methods that require switching control strategies before and after contacts, this design is able to accomplish contact transition tasks with a single control strategy, avoiding control discontinuities. In this paper, the proposed controller design is further developed, and results from computer simulation and physical experiments are presented to demonstrate the feasibility and effectiveness of the controller design.
The automation of control systems of substations in the energy industry uses a variety of specialized standards, technologies and protocols. Among the most frequently used belong MODBUS, IEC60870, DNP3 and IEC61850 pr...
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ISBN:
(纸本)9781479901944;9781479901975
The automation of control systems of substations in the energy industry uses a variety of specialized standards, technologies and protocols. Among the most frequently used belong MODBUS, IEC60870, DNP3 and IEC61850 protocols. The present paper analyses and compares approaches to data communication among the above mentioned protocols with the main focus on modern standard IEC61850. The paper was created on the basis of experience while implementing data communications for CEPS a.s., the national distributor in the Czech Republic.
Nowadays in road transport lower fuel consumption, higher traffic safety and reduced environmental impact are in the focus of the developments. To reach these future objectives it is necessary to increase the level of...
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ISBN:
(纸本)9781728156255
Nowadays in road transport lower fuel consumption, higher traffic safety and reduced environmental impact are in the focus of the developments. To reach these future objectives it is necessary to increase the level of automation of road vehicles. Driving a road vehicle by a software is a complex controlling task. This paper presents a basic longitudinal motion controller, which uses a Linear-Quadratic (LQ) regulator. This controller is widespread in the controlling of MIMO systems, because it provides an interactive control, optimized for certain elements of the state vector. The aim of this work is to create an operative longitudinal vehicle control based on an LQ regulator and use it in a demonstration vehicle.
This work presents a solution for distant control of industrial robots using mobile devices. The developed application can monitor the motion of the robot based on video and sensor information, it can send commands an...
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ISBN:
(纸本)9798350398823
This work presents a solution for distant control of industrial robots using mobile devices. The developed application can monitor the motion of the robot based on video and sensor information, it can send commands and control scripts to the robot, and it ensures the jogging-like manual control of the robot. In addition to the aforementioned functionalities, the application can analyze the teleoperation performances of the user. A set of performance metrics were introduced to rate user performances. They are useful to evaluate and educate remote manual robot control techniques. Experimental measurements are also presented to show the applicability of the developed remote control application and user performance evaluation method.
The Perceptual control Manifold is a recently introduced concept that extends the notion of the robot configuration space to include sensor feedback for robot motion planning. In this paper, we propose a framework for...
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ISBN:
(纸本)0818681381
The Perceptual control Manifold is a recently introduced concept that extends the notion of the robot configuration space to include sensor feedback for robot motion planning. In this paper, we propose a framework for sensor-based robot motion planning using the Topology Representing Network algorithm to develop a learned representation of the Perceptual control Manifold. The topology preserving features of the neural network lend themselves to yield after learning, a diffusion-based path planning strategy for flexible obstacle avoidance. Simulations on path control and flexible obstacle avoidance demonstrate the feasibility of this approach for motion planning and illustrate the potential for further robotic applications.
This paper conducts simulations of reformation of mobile agents structure with analysis and provides a primitive but new method for automatic collision control. This dynamics is based on synchronization of coupled cha...
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ISBN:
(纸本)0780378660
This paper conducts simulations of reformation of mobile agents structure with analysis and provides a primitive but new method for automatic collision control. This dynamics is based on synchronization of coupled chaotic oscillators. The author applys this for agent simulator and verify the performance by agent's standpoint of view.
The trajectory tracking control problem of nonholonomic mobile robots with parameter uncertainties has been analyzed. The kinematics and dynamical models of mobile robots are taken into account, the control rule based...
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ISBN:
(纸本)9781424448081
The trajectory tracking control problem of nonholonomic mobile robots with parameter uncertainties has been analyzed. The kinematics and dynamical models of mobile robots are taken into account, the control rule based on the kinematics model is taken as desired virtual control, and the adaptive sliding mode controller is designed, as the controller take into account both kinematics and dynamical model, the robot can not only track trajectory smoothly, but also be robust to parameter uncertainties. Based on Lyapunov theory, the system is stable. Finally, simulations are performed on the system with parameter uncertainties, and the results show that the proposed controller can track desired trajectory effectively.
This paper proposes 1) Robot-Assisted Activity (RAA) to provide physical and mental support and 2) an emotion-driven control model for RAA. The construction of the control model uses hierarchical knowledge. A robot ca...
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ISBN:
(纸本)0780378660
This paper proposes 1) Robot-Assisted Activity (RAA) to provide physical and mental support and 2) an emotion-driven control model for RAA. The construction of the control model uses hierarchical knowledge. A robot can perform complex actions based on the robot's internal and external environmental information.
Direct human-robot communication system based on natural language (NL) and cognitive graphics (CG) as a part of a new hierarchical structure of AI control system of mobile robot for service use (MRSU) is developed, Th...
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ISBN:
(纸本)0818681381
Direct human-robot communication system based on natural language (NL) and cognitive graphics (CG) as a part of a new hierarchical structure of AI control system of mobile robot for service use (MRSU) is developed, The software of simulation system for direct human-robot communication and MRSU behavior based on NL and CG is described. The NL an CG is used for description and representation of possible external worlds in the robot artificial life, This system allows us to evaluate the control algorithms of real time robot behavior and to reduce difficulties connected with such troubles as robot collisions with real objects and robot hardware damages. The mathematical background of direct NL human-robot communication and robot behavior simulation system is knowledge engineering based on spatio-temporal and action logics, default reasoning, cognitive graphics and soft computing, The main concepts, structure, conceptual model of simulation system for description of artificial life of MRSU are discussed, The example of simulation and real experimental results are described.
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