In this paper, a multi-objective optimization problem is investigated for a class of nonlinear continuous-time systems with time-varying delays. the controlled plant is supposed to have nonlinear dynamics and time del...
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For the teleoperation of a robot over an IP network, we must deal withthe variable network delays as well as with events that can occur during the teleoperation. In this paper bothcontrol and architectural aspects a...
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Customer Relationship Management (CRM) initiatives have gained much attention in recent years. Withthe aid of data mining technology, businesses can formulate specific strategies for different customer bases more pre...
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USS is a novel underwater self-reconfigurable robot, which consists of modules of the same type. By the modules' connecting and disconnecting, USS can change its configuration in real-time. A feature of USS is tha...
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A software-based, design-and-drive system is being developed to reduce the concept-to-installation cycle-time of robot and automation systems proposed for cleanup, materials handling, remediation and security detail a...
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A software-based, design-and-drive system is being developed to reduce the concept-to-installation cycle-time of robot and automation systems proposed for cleanup, materials handling, remediation and security detail at DOE sites (referred to as the robotics and automation Design-and-Drive System, or RADDS). the RADDS, as a design, analysis and implementation tool, uses simulation to populate proposed solutions with easily crafted and changeable models of robots, sensors and automation components to meet the requirements of the application. the preferred system, as determined by simulation, can then be ordered and the simulation software can then be directed to operate the actual hardware when it arrives. the RADDS can also be used to train prospective operator personnel while the actual system is being built and delivered, to further shorten cycle times. RADDS has been used to demonstrate the coordinated control of a dual-arm workcell at the University of New Mexico. the workcell is designed to study the manipulation of unwieldy objects, and to transport objects, representative of hazardous materials, safely, without residual swinging motion. Directed vision systems, adaptive grasp algorithms and workcell coordination, as part of this project, are being developed in parallel withthe RADDS development in order to implement these tasks. RADDS, operating from the University of New Mexico (UNM), has also been used to remotely control a mobile platform at the University of Michigan, a mobile All-Terrain Vehicle (ATV) at the University of Florida, and a dual-arm robot system at the University of Texas at Austin.
In the present work, we study the feedback control of a scale-free network of coupled Henon maps. A condition is derived for locally asymptotically stabilizing such a discrete-time complex dynamical network onto the h...
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ISBN:
(纸本)0780386531
In the present work, we study the feedback control of a scale-free network of coupled Henon maps. A condition is derived for locally asymptotically stabilizing such a discrete-time complex dynamical network onto the homogenous stationary state by applying local feedback controllers to a fraction of network nodes. Numerical studies verify the effectiveness.
A class of nonlinear system is substituted by a time-varying linear system. Cubic spline functions are used directly to identify the coefficients of time-varying linear system. then minimum variance controller for the...
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ISBN:
(纸本)0780386531
A class of nonlinear system is substituted by a time-varying linear system. Cubic spline functions are used directly to identify the coefficients of time-varying linear system. then minimum variance controller for the nonlinear system is designed. the stability of closed-loop system is proved. the effectiveness of the presented method is demonstrated by the simulation results.
Recent advances in complex network research have stimulated increasing interest in understanding the relationship between the topology and dynamics of complex networks. In this work, we investigate the synchronizabili...
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ISBN:
(纸本)0780386531
Recent advances in complex network research have stimulated increasing interest in understanding the relationship between the topology and dynamics of complex networks. In this work, we investigate the synchronizability of a class of continuous-time dynamical networks with two kinds of scale-free topologies. Robustness of the synchronizability of the two scale-free dynamical networks with respect to random or specific removal of nodes is also compared.
this paper presents an experimental evaluation of the performance of a laser range finder, AccuRange 4000 by Acuity Research, a popular distance sensor in robotics research and industrial automation. Our study determi...
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ISBN:
(纸本)0780386531
this paper presents an experimental evaluation of the performance of a laser range finder, AccuRange 4000 by Acuity Research, a popular distance sensor in robotics research and industrial automation. Our study determines the performance of the ranging device under various operating conditions, including lighting, temperature, and surface color, and orientation. Based on the empirical data, a calibration model is developed to allow one to interpret the range measurements accurately.
this paper introduces the background of rough set theory, and then brought forward a new algorithm for finding optimal reduct and make comparison between the original algorithm and the improved one via the experiment ...
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this paper introduces the background of rough set theory, and then brought forward a new algorithm for finding optimal reduct and make comparison between the original algorithm and the improved one via the experiment about the nine standard datasets in the UL database to explain the validity of the improved heuristic algorithm.
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