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34th Chinese Control Conference, CCC 2015

作者： Ting, Yang Fu, Yi Li Tavakoi, Mahdi State Key Laboratory of Robotics and Systems Harbin Institute of Technology Harbin Heilongjiang China Department of Electrical and Computer Engineering University of Alberta EdmontonAB Canada

ISBN: (纸本)9789881563897

The performances of continuous-time controlled and discrete-time controlled bilateral teleoperation systems are mathematically and experimentally studied and compared. The results show that under stability conditions, continuous-time controlled teleoperation systems have hybrid matrix parameters that are closer to their ideal values than their discrete-time controlled counterparts. This means better force tracking and position tracking performance under continuous-time control, which can lead to better task performance. © 2015 Technical Committee on Control Theory, Chinese Association of Automation.

关键词： Bilateral teleoperation continuous-time control discrete-time control hybrid parameters system performance

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Fixed mode elimination with minimum information exchange among controllers

Fixed mode elimination with minimum information exchange amo...

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IEEE Conference on Decision and Control

作者： M. Tarokh M. Jamshidi CAD Laboratory Systems/Robotics Department of Electrical and Computer Engineering University of New Mexico Albuquerque NM USA

The paper proposes a frequency-domain approach to the problem of fixed mode elimination in decentralized systems. systems having distinct or repeated fixed modes are considered and decentralized controllers requiring ... 详细信息

关键词： Control systems Distributed control Polynomials Laboratories Robots Feedback Displacement control Frequency Equations

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Survey of the Robust Control of Robots

Survey of the Robust Control of Robots

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American Control Conference (ACC)

作者： C. Abdallah P. Dorato M. Jamshidi CAD Laboratory for Systems and Robotics Electrical and Computer Engineering Department University of New Mexico Albuquerque NM USA

In this survey, we discuss current approaches to the robust control of the motion of robots and summarize the available literature on the subject. The three major designs discussed are the "Linear-Multivariable" Approach, the "Passivity" approach and the "Variable-Structure" approach. The survey is limited to rigid robots and nonadaptive controllers.

关键词： Robust control Robot kinematics Control systems Tellurium Equations Robot control Adaptive control Symmetric matrices Gravity Lagrangian functions

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On Decentralized Control Of Nonlinear Tkree-link Robots

On Decentralized Control Of Nonlinear Tkree-link Robots

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Asilomar Conference on Signals, systems & computers

作者： H. Jamshidi H. Seraji Y.T. Kim CAD Laboratory for Systems/Robotics Department of Electrical and Computer Engineering University of New Mexico Albuquerque NM USA

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Fuzzy logic based collision avoidance for a mobile robot 3

Fuzzy logic based collision avoidance for a mobile robot

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3rd International Conference on Industrial Fuzzy Control and Intelligent systems, IFIS 1993

作者： Martinez, A. Tunstel, E. Jamshidi, M. CAD Laboratory for Intelligent and Robotic Systems Department of Electrical and Computer Engineering University of New Mexico AlbuquerqueNM87131 United States NASA Jet Propulsion Laboratory PasadenaCA United States

ISBN: (纸本)0780314859

Navigation and collision avoidance are major areas of research in mobile robotics.that involve varying degrees of uncertainty. In general, the problem consists of achieving sensor based motion control of a mobile robot among obstacles in structured and/or unstructured environments with collision-free motion as the proirity. A fuzzy logic based intelligent control strategy has been developed here to computationally implement the approximate reasoning necessary for handling the uncertainty inherent in the collision avoidance problem. © 1993 IEEE.

关键词： Collision avoidance

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Darwinian Robotic Swarms for exploration with minimal communication

Darwinian Robotic Swarms for exploration with minimal commun...

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2013 IEEE Congress on Evolutionary Computation, CEC 2013

作者： Couceiro, Micael S. Rocha, Rui P. Ferreira, Nuno M. F. Vargas, Patricia A. Institute of Systems and Robotics University of Coimbra Coimbra Portugal RoboCorp Department of Electrical Engineering Engineering Institute of Coimbra Coimbra Portugal Robotics Laboratory School of Mathematical and Computer Science Heriot-Watt University Edinburgh United Kingdom

ISBN: (纸本)9781479904549

The Robotic Darwinian Particle Swarm Optimization (RDPSO) recently introduced in the literature has the ability to dynamically partition the whole population of robots based on simple 'punish-reward' rules. Although this evolutionary algorithm enables the reduction of the amount of required information exchange among robots, a further analysis on the communication complexity of the RDPSO needs to be carried out so as to evaluate its scalability. This paper analyses the architecture of the RDPSO communication system, thus describing the dynamics of the communication data packet structure shared between teammates. Moreover, a set of simple communication rules is also proposed in order to reduce the communication overhead within swarms of robots. Experimental results with teams of 15 real robots show that the proposed methodology reduces the communication overhead, thus improving the scalability and applicability of the RDPSO algorithm. © 2013 IEEE.

关键词： Swarm intelligence

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A connection network for robotic gripper control

A connection network for robotic gripper control

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IEEE Conference on Decision and Control

作者： B. Horne M. Jamshidi CAD Lab. Syst./Robotics Albuquerque NM USA UNM Department of Electrical and Computer Engineering CAD Laboratory Systems Robotics Albuquerque NM USA

A memory-based robotic control paradigm which learns relationships between a control effort and a change of state is introduced. It has been used to develop a learning control system which implements step responses in one dimension on a robotic gripper, with partial success. It was found that velocity as well as positional feedback were required to complete even simple movements. It is believed that aspects of this approach would readily extend to a tactile sensing system.< >

关键词： Grippers Robot control Robot kinematics Robot sensing systems Nonlinear equations Control systems Orbital robotics Mathematical model Acceleration Torque control

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Image Processing-Based Mine Detection Techniques: A Review

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Subsurface Sensing Technologies and Applications 2002年第3期3卷 153-202页

作者： Paik, Joonki Lee, Cheolha P. Abidi, Mongi A. Imaging Robotics and Intelligent Systems Laboratory Department of Electrical and Computer Engineering The University of Tennessee Knoxville

Various mine detection techniques are reviewed with particular emphasis on signal and image processing methods. Based on the target, mines are classified into two types; anti-tank mine (ATM) and anti-personnel mine (APM). Because of the variety of mine types, current mine detection techniques are diversified. The assumption is made that most mine detection techniques consist of sensor, signal processing, and decision processes. For the sensor part, ground penetration radar (GPR), infrared (IR), and ultrasound (US) sensors are reviewed and their characteristics are summarized for the corresponding output signals. For the signal processing and decision parts, a set of image processing techniques including filtering, enhancement, feature extraction, and segmentation are surveyed. Segmentation is used to extract mine signal from various competing signals. For most image processing techniques covered by this paper, mine detection related experimental results are included or reproduced from existing works.

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Control of robotic manipulator using fuzzy logic

Control of robotic manipulator using fuzzy logic

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IEEE International Conference on Fuzzy systems (FUZZ-IEEE)

作者： K.K. Kumbla M. Jamshidi CAD Laboratory for Intelligent and Robotics Systems Department of Electrical and Computer Engineering University of New Mexico Albuquerque NM USA

This paper describes the implementation of hierarchical control on a robotic manipulator using fuzzy logic. A decentralized control approach is implemented, i.e., individual controllers control the two links of the robot. The kinematic aspect of the control is treated as the supervisory mode at a higher level and the joint control is treated as the lower level. Fuzzy logic based rules determine the inverse kinematic mapping which maps the Cartesian coordinates to the individual joint angles. This scheme is implemented using Togai Infra Logic software and the entire simulation software is implemented using C language. The results of the simulation are discussed. This experiment is a proof of principle to show that the fuzzy controller can be used to map the nonlinear mapping which can be implemented to the more complex problem of inverse kinematics of higher degree of freedom robots. A fuzzy PD controller is implemented on a Rhino robot and the performance is compared with a traditional PD controller.< >

关键词： Robot control Fuzzy logic Fuzzy control Manipulator dynamics Robot kinematics PD control Intelligent robots Nonlinear equations Control systems Distributed control

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Embedded fuzzy logic-based wall-following behavior for mobile robot navigation

Embedded fuzzy logic-based wall-following behavior for mobil...

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Conference of the North American Fuzzy Information Processing Society - NAFIPS

作者： E. Tunstel M. Jamshidi CAD Laboratory for Robotics and Intelligent Systems Department of Electrical and Computer Engineering University of New Mexico Albuquerque NM USA

The synthesis of a fuzzy logic controller that provides a small mobile robot with the capability to exhibit a wall-following behavior is described. A general account of the procedure is given with emphasis placed on t... 详细信息

关键词： Fuzzy logic Mobile robots Navigation Fuzzy control Intelligent robots Embedded system Robot sensing systems Control systems Assembly Fuzzy systems

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