Download or read book A Real Time Bilateral Teleoperation Control System Over Imperfect Network written by Truong Quang Dinh and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Functionality and performance of modern machines are directly affected by the implementation of real-time control systems. Especially in networked teleoperation applications, force feedback control and networked control are two of the most important factors, which determine the performance of the whole system. In force feedback control, generally it is necessary but difficult and expensive to attach sensors (force/torque/pressure sensors) to detect the environment information in order to drive properly the feedback force. In networked control, there always exist inevitable random time-varying delays and packet dropouts, which may degrade the system performance and, even worse, cause the system instability. Therefore in this chapter, a study on a real-time bilateral teleoperation control system (BTCS) over an imperfect network is discussed. First, current technologies for teleoperation as well as BTCSs are briefly reviewed. Second, an advanced concept for designing a bilateral teleoperation networked control (BTNCS) system is proposed, and the working principle is clearly explained. Third, an approach to develop a force-sensorless feedback control (FSFC) is proposed to simplify the sensor requirement in designing the BTNCS, while the correct sense of interaction between the slave and the environment can be ensured. Fourth, a robust-adaptive networked control (RANC)-based master controller is introduced to deal with control of the slave over the network containing both time delays and information loss. Case studies are carried out to evaluate the applicability of the suggested methodology.

Download or read book Real time Systems written by Kuodi Jian and published by BoD – Books on Demand. This book was released on 2016-06-08 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to Real-time Systems of broad applications, such as autonavigation (Kalman Filtering), real-time reconfiguration of distributed networks, real-time bilateral teleoperation control system over imperfect networks, and uniform interfaces for resource-sharing components in hierarchically scheduled real-time systems. In addition to that, wireless technology and its usage in implementing intelligent systems open a wide spectrum of real-time systems and offer great potential for improving people's life: for example, wireless sensor networks used in subways, reduced energy consumption in public buildings, improved security through public surveillance, and high efficiency through industrial automation. Furthermore, electric utilities and multi-core CPU architecture, the driving force of modern life, are part of subjects benefited from the topics covered in this book.

Download or read book Performance Evaluation of Real time Bilateral Teleoperation Systems with Wired and Wireless Network Simulation written by Stephen Liao and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis and Design for Networked Teleoperation System written by Changchun Hua and published by Springer. This book was released on 2019-05-24 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents cutting-edge results on stability analysis and control scheme designs for networked teleoperation systems. It highlights new research on commonly encountered nonlinear teleoperation systems, including the stability analysis of teleoperation systems with asymmetric time-varying delays, stability analysis of teleoperation systems with interval time delays, and so on. Moreover, the book presents several high-performance control scheme designs for teleoperation systems when the velocity is available and unavailable, and for systems with nonlinear input. The results presented here mark a substantial contribution to nonlinear teleoperation system theory, robotic control theory and networked control system theory. As such, the book will be of interest to university researchers, R&D engineers and graduate students in control theory and control engineering who wish to learn about the core principles, methods, algorithms, and applications of networked teleoperation systems, robotic systems and nonlinear control systems.

Download or read book Real time Systems written by Kuodi Jian and published by . This book was released on with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to Real-time Systems of broad applications, such as autonavigation (Kalman Filtering), real-time reconfiguration of distributed networks, real-time bilateral teleoperation control system over imperfect networks, and uniform interfaces for resource-sharing components in hierarchically scheduled real-time systems. In addition to that, wireless technology and its usage in implementing intelligent systems open a wide spectrum of real-time systems and offer great potential for improving people's life: for example, wireless sensor networks used in subways, reduced energy consumption in public buildings, improved security through public surveillance, and high efficiency through industrial automation. Furthermore, electric utilities and multi-core CPU architecture, the driving force of modern life, are part of subjects benefited from the topics covered in this book.

Download or read book A Networked Control System Testbed written by Andrew David Gilliam and published by . This book was released on 2004 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Real time Implementation of Some Bilateral Teleoperation Schemes written by Alain Richard and published by . This book was released on 2010 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our main research is to compare different control methods for such a system using a six degree of freedom (DOF) parallel robot for the master device and a 6 DOF serial robot for the slave device. According to the choice of the transmitted variables over the communication medium, we attempt to show the inherent differences between transmitting position/sensor force information, velocity/control force information and, thereafter, wave variables.

Download or read book Teleoperation of Passivity based Model Reference Robust Control Over the Internet written by Sam Naghshineh and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation offers a survey of a known theoretical approach and novel experimental results in establishing a live communication medium through the internet to host a virtual communication environment for use in Passivity-Based Model Reference Robust Control systems with delays. The controller which is used as a carrier to support a robust communication between input-to-state stability is designed as a control strategy that passively compensates for position errors that arise during contact tasks and strives to achieve delay-independent stability for controlling of aircrafts or other mobile objects. Furthermore the controller is used for nonlinear systems, coordination of multiple agents, bilateral teleoperation, and collision avoidance thus maintaining a communication link with an upper bound of constant delay is crucial for robustness and stability of the overall system. For utilizing such framework an elucidation can be formulated by preparing site survey for analyzing not only the geographical distances separating the nodes in which the teleoperation will occur but also the communication parameters that define the virtual topography that the data will travel through. This survey will first define the feasibility of the overall operation since the teleoperation will be used to sustain a delay based controller over the internet thus obtaining a hypothetical upper bound for the delay via site survey is crucial not only for the communication system but also the delay is required for the design of the passivity-based model reference robust control. Following delay calculation and measurement via site survey, bandwidth tests for unidirectional and bidirectional communication is inspected to ensure that the speed is viable to maintain a real-time connection. Furthermore from obtaining the results it becomes crucial to measure the consistency of the delay throughout a sampled period to guarantee that the upper bound is not breached at any point within the communication to jeopardize the robustness of the controller. Following delay analysis a geographical and topological overview of the communication is also briefly examined via a trace-route to understand the underlying nodes and their contribution to the delay and round-trip consistency. To accommodate the communication channel for the controller the input and output data from both nodes need to be encapsulated within a transmission control protocol via a multithreaded design of a robust program within the C language. The program will construct a multithreaded client-server relationship in which the control data is transmitted. For added stability and higher level of security the channel is then encapsulated via an internet protocol security by utilizing a protocol suite for protecting the communication by authentication and encrypting each packet of the session using negotiation of cryptographic keys during each session.

Download or read book Output Synchronization for Teleoperation of Robot Manipulators written by Patrick Miller and published by . This book was released on 2009 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the emergence of innumerable unmanned robotic systems, there is a greater push for a robust and stable means of teleoperated control. Teleoperation is extremely useful in two major ways. First, a remotely control robot may be able to enter an environment which is dangerous or inhabitable by a human operator. This scenario pertains to autonomous vehicle or hazardous waste management applications. Secondly, robot manipulators are capable of detecting and compensating for environmental interactions and making more precise and consistent movements then their human counterparts. This becomes particularly useful robot assisted surgery. In such remote control applications, it is also important to accurately reflect the remote environment back to the human user. This is typically achieved by adding force and torque sensors on the remote system and transmitting force data back to the operator.^This is an ideal form of bilateral control since the sense of touch is significantly more sensitive then the human eye. However, problems arise when transmission delays are introduced into the link between host and remote system. Transmission delays are an unavoidable part of remote communications which are typically compensated by adding physical or virtual compliance into the system. However, this has the deleterious effect on 'transparent' perception of the remote environment. Thus, it is the responsibility of the control algorithm to compensate for delay induced instability while providing a transparent feel to the human operator. Maintaining the stability of the overall teleoperation scheme at a minimal loss of performance is the basis of this thesis. The case-study of telemanipulation of an RR planar manipulator and wheeled mobile robot using the stylus endpoint Phantom Omni haptic device will serve to form our efforts in this thesis.^First and foremost the devices are kinematically and dynamically dissimilar. These couple with the remaining issues of stable teleoperation over lossy, band limited, imperfect communication media to make this a challenging task. To this end we will study the application of a bilateral teleoperation framework developed [1] using nonlinear control and energy based stability theory to overcome some of the limitations. Locally an adaptive controller will identify and stabilize the dynamics of the master and slave systems. This local controller will rendered the dynamics passive to a secondary coupling input. A passive mapping is used to couple the output states of the master and slave systems. This mapping is shown to be insensitive to lossy and delayed communication mediums. A battery of simulations and real time experiments are used to verify the proposed controller.

Download or read book Stability Performance and Implementation Issues in Bilateral Teleoperation Control and Haptic Simulation Systems written by Amir Haddadi and published by . This book was released on 2011 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master-Slave teleoperation systems are designed to extend a human's manipulation capability to remote tasks. Recent applications of these systems are in robotic therapy, telesurgery, and medical simulators. In practice, due to the uncertainties in the operator and environment dynamics, and time delay, stability and performance are compromised. Stability-based and performance-based controllers are introduced for these systems. A major class of the former controllers are based on the passivity theory and suffer from the assumed unbounded range of dynamics which is rather unrealistic. The latter class of controllers are mostly adaptive methods that are based on performance optimization. The theme of this thesis is on the development of new stability analysis methods, control strategies, and implementation techniques for enhanced trade-off between stability and performance. I have developed a less conservative passivity-based robust stability method and introduced, for the first time, the notion of Bounded Impedance Absolute Stability. The method provides mathematical and visual aids to incorporate bounds of the passive environment impedance for less conservative guaranteed stability conditions, promising a better compromise between stability and performance. I have extended the new method to include the dynamic range of the human operator for increased stability margins. I have also used the new method to develop a bilateral controller robust to time delays. Furthermore, I have investigated the effect of sampling position versus velocity for various sampling models to obtain less conservative coupled stability conditions for haptic simulation systems. Estimates of the environment dynamics are required to include their variations. Therefore, I have proposed two new real-time parameter estimation methods for linear and nonlinear contacts and experimentally evaluated and compared them with the available techniques. Finally, I have introduced needle insertion as a task in telerobotic systems to combine the expertise of the surgeon with robotic control. Here, the very first few steps needed to effectively control the targeting needles have been taken. I have developed a mechanics-based dynamic model for bevel-tip flexible needles inserted into soft tissues. Finite element models are used to estimate soft tissue deformation, while the mechanics-based model is used to predict needle deflections due to bevel-tip asymmetry.

Download or read book Towards Autonomous Robotic Systems written by Fumiya Iida and published by Springer Nature. This book was released on 2023-09-07 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 24th Annual Conference Towards Autonomous Robotic Systems, TAROS 2023, held in Cambridge, UK, during September 13–15, 2023. The 40 full papers presented in this book were carefully reviewed and selected from 70 submissions. They cover a wide range of different topics such as: agri-food robotics; autonomy; collaborative and service robotics; locomotion and manipulation; machine vision; multi-robot systems; soft robotics; tactile sensing; and teleoperation.

Download or read book Passivity Based Control and Estimation in Networked Robotics written by Takeshi Hatanaka and published by Springer. This book was released on 2015-04-10 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highlighting the control of networked robotic systems, this book synthesizes a unified passivity-based approach to an emerging cross-disciplinary subject. Thanks to this unified approach, readers can access various state-of-the-art research fields by studying only the background foundations associated with passivity. In addition to the theoretical results and techniques, the authors provide experimental case studies on testbeds of robotic systems including networked haptic devices, visual robotic systems, robotic network systems and visual sensor network systems. The text begins with an introduction to passivity and passivity-based control together with the other foundations needed in this book. The main body of the book consists of three parts. The first examines how passivity can be utilized for bilateral teleoperation and demonstrates the inherent robustness of the passivity-based controller against communication delays. The second part emphasizes passivity’s usefulness for visual feedback control and estimation. Convergence is rigorously proved even when other passive components are interconnected. The passivity approach is also differentiated from other methodologies. The third part presents the unified passivity-based control-design methodology for multi-agent systems. This scheme is shown to be either immediately applicable or easily extendable to the solution of various motion coordination problems including 3-D attitude/pose synchronization, flocking control and cooperative motion estimation. Academic researchers and practitioners working in systems and control and/or robotics will appreciate the potential of the elegant and novel approach to the control of networked robots presented here. The limited background required and the case-study work described also make the text appropriate for and, it is hoped, inspiring to students.

Download or read book Multidisciplinary Computational Intelligence Techniques Applications in Business Engineering and Medicine written by Ali, Shawkat and published by IGI Global. This book was released on 2012-06-30 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book explores the complex world of computational intelligence, which utilizes computational methodologies such as fuzzy logic systems, neural networks, and evolutionary computation for the purpose of managing and using data effectively to address complicated real-world problems"--

Download or read book Aerial Manipulation written by Matko Orsag and published by Springer. This book was released on 2017-09-19 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is a thorough treatment of the rapidly growing area of aerial manipulation. It details all the design steps required for the modeling and control of unmanned aerial vehicles (UAV) equipped with robotic manipulators. Starting with the physical basics of rigid-body kinematics, the book gives an in-depth presentation of local and global coordinates, together with the representation of orientation and motion in fixed- and moving-coordinate systems. Coverage of the kinematics and dynamics of unmanned aerial vehicles is developed in a succession of popular UAV configurations for multirotor systems. Such an arrangement, supported by frequent examples and end-of-chapter exercises, leads the reader from simple to more complex UAV configurations. Propulsion-system aerodynamics, essential in UAV design, is analyzed through blade-element and momentum theories, analysis which is followed by a description of drag and ground-aerodynamic effects. The central part of the book is dedicated to aerial-manipulator kinematics, dynamics, and control. Based on foundations laid in the opening chapters, this portion of the book is a structured presentation of Newton–Euler dynamic modeling that results in forward and backward equations in both fixed- and moving-coordinate systems. The Lagrange–Euler approach is applied to expand the model further, providing formalisms to model the variable moment of inertia later used to analyze the dynamics of aerial manipulators in contact with the environment. Using knowledge from sensor data, insights are presented into the ways in which linear, robust, and adaptive control techniques can be applied in aerial manipulation so as to tackle the real-world problems faced by scholars and engineers in the design and implementation of aerial robotics systems. The book is completed by path and trajectory planning with vision-based examples for tracking and manipulation.

Download or read book Beyond Webcams written by Ken Goldberg and published by MIT Press. This book was released on 2002 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design, function, and challenges of online telerobotic systems. Remote-controlled robots were first developed in the 1940s to handle radioactive materials. Trained experts now use them to explore deep in sea and space, to defuse bombs, and to clean up hazardous spills. Today robots can be controlled by anyone on the Internet. Such robots include cameras that not only allow us to look, but also go beyond Webcams: they enable us to control the telerobots' movements and actions. This book summarizes the state of the art in Internet telerobots. It includes robots that navigate undersea, drive on Mars, visit museums, float in blimps, handle protein crystals, paint pictures, and hold human hands. The book describes eighteen systems, showing how they were designed, how they function online, and the engineering challenges they meet.

Download or read book Intelligent and Efficient Transport Systems written by Truong Quang Dinh and published by BoD – Books on Demand. This book was released on 2020-04-01 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to present a number of digital and technology solutions to real-world problems across transportation sectors and infrastructures. Nine chapters have been well prepared and organized with the core topics as follows: -A guideline to evaluate the energy efficiency of a vehicle -A guideline to design and evaluate an electric propulsion system -Potential opportunities for intelligent transportation systems and smart cities -The importance of system control and energy-power management in transportation systems and infrastructures -Bespoke modeling tools and real-time simulation platforms for transportation system development This book will be useful to a wide range of audiences: university staff and students, engineers, and business people working in relevant fields.

Download or read book Motion Control Systems written by Asif Sabanovic and published by John Wiley & Sons. This book was released on 2011-03-10 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motion Control Systems is concerned with design methods that support the never-ending requirements for faster and more accurate control of mechanical motion. The book presents material that is fundamental, yet at the same time discusses the solution of complex problems in motion control systems. Methods presented in the book are based on the authors' original research results. Mathematical complexities are kept to a required minimum so that practicing engineers as well as students with a limited background in control may use the book. It is unique in presenting know-how accumulated through work on very diverse problems into a comprehensive unified approach suitable for application in high demanding, high-tech products. Major issues covered include motion control ranging from simple trajectory tracking and force control, to topics related to haptics, bilateral control with and without delay in measurement and control channels, as well as control of nonredundant and redundant multibody systems. Provides a consistent unified theoretical framework for motion control design Offers graduated increase in complexity and reinforcement throughout the book Gives detailed explanation of underlying similarities and specifics in motion control Unified treatment of single degree-of-freedom and multibody systems Explains the fundamentals through implementation examples Based on classroom-tested materials and the authors' original research work Written by the leading researchers in sliding mode control (SMC) and disturbance observer (DOB) Accompanying lecture notes for instructors Simulink and MATLAB® codes available for readers to download Motion Control Systemsis an ideal textbook for a course on motion control or as a reference for post-graduates and researchers in robotics and mechatronics. Researchers and practicing engineers will also find the techniques helpful in designing mechanical motion systems.