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IEEE International Workshop on Intelligent Robots and systems (IROS)

作者： G. Wohlke Institute for Real-Time Computer Control Systems and Robotics Faculty for Informatics University of Karlsruhe Karlsruhe Germany

In this paper the framework of an intelligent control system of a multi-finger robot hand is described, that is especially tailored for sensor-based object handling and assembly. The research has concerned with the Karlsruhe dextrous hand, a modular three-finger hand with 9 degrees of freedom, independent finger modules and integrated sensors. The total system structure consists of three embedded sub{1., with a planning and supervisory system on the top, which has a blackboard-like architecture to exchange information with a distributed real-time control system that provides force/position control strategies for dextrous grasping and manipulating of arbitrary objects. A programming and simulation system supports the object/task-based description of all robot and gripper actions required to perform a specific operation.< >

关键词： Robot programming Robotic assembly Force control Intelligent control Robot sensing systems Intelligent robots Assembly systems Fingers Intelligent sensors Strategic planning

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Requirements analysis for real-{1. automation projects

Requirements analysis for real-time automation projects

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International Conference on Software Engineering (ICSE)

作者： M. Hagemann Faculty for Informatics Institute of Real-Time Computer Control Systems and Robotics University of Karlsruhe Karlsruhe Germany

ISBN: (纸本)0897912586

A formal language for specifying and analyzing requirements is introduced. An integrated set of tools support the transition from ideas to a requirements specification. The system is implemented on an IBM PC. The special characteristics of the language and the tools are their suitability for the description of embedded real-{1. systems. The most useful feature of the system is the possibility of graphical input and output as an alternative of the mere textual specification. Transformation between textual and graphical representation is done by the PROREC system.< >

关键词： control {1. Automatic control robotics and automation Process control Informatics real {1. systems Robot control Specification languages Formal specifications Software engineering

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Stability Analysis and Performance Evaluation of Delayed Bilateral Telerobotic systems over a Lossy Communication Channel

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Journal of systems Science & Complexity 2021年第1期34卷 157-179页

作者： BAKHSHI Ali ALFI Alireza TALEBI Heidar Ali SOURATGAR Amir Aboulfazl YOUSEFI Mahdi Faculty of Electrical and Robotic Engineering Shahrood University of TechnologyShahrood 36199-95161Iran Power Plants Control Systems Technology Development Plan Department of monitoring and ControlNiroo Research InstituteTehran 14665-517Iran Real-Time and Robotics system Laboratory Faculty of Electrical EngineeringAmirkabir University of TechnologyHafez AvenueTehran 15914Iran Electrical and Computer Engineering Department The University of British Columbia2385East MallVan couverBC V6T 1Z4Canada

The focus of this paper is to address a novel control technique for stability and transparency analysis of bilateral telerobotic {1. in the presence of data loss and time delay in the communication channel. Different control strategies have been reported to compensate the effects of time delay in the communication channel;however, most of them result in poor performance under data loss. First, a model for data loss is proposed using a finite series representation of a set of periodic continuous *** improve the performance and data reconstruction, a holder circuits is also introduced. The passivity of the overall system is provided via the wave variable technique based on the proposed model for the data loss. The stability analysis of the system is then derived using the Lyapunov theorem under the time delay and the data loss. Finally, experimental results are given to illustrate the capability of the proposed control technique.

关键词： Lossy channel passivity stability telerobotic transparency

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A Hybrid Object Representation for Automatic Assembly Planning

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IFAC Proceedings Volumes 1993年第2期26卷 243-246页

作者： G. Werling H. Wild Faculty of Computer Science Institute for Real-Time Computer Systems and Robotics University of Karlsruhe Postfach 6980 7500 Karlsruhe 1 Germany

A new product model that is particularly useful for model-based assembly planning is presented in this paper. The majority of the models used in this domain are simple approximations of the real workpiece and they are often dedicated to special algorithms. The model described here provides a more accurate and more flexible representation of workpieces. An increase in accuracy of the shape description was achieved by enhancing a polyhedral model with an analytical representation. The application of the model is demonstrated within the framework of assembly sequence planning.

关键词： Object representation assembling analytical models polyhedron boundary representation constructive solid geometry

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Automated computer-Aided Layout Planning for Robot Workcells

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IFAC Proceedings Volumes 1992年第7期25卷 473-478页

作者： T.C. Lueth Institute for Real-Time Computer Systems and Robotics Faculty for Computer Science University of Karlsruhe Postfach 69 80 W-7500 Karlsruhe 1 Germany

This text presents an approach for planning robot workcells in three dimensions fully automatically. This automation is possible by a complete layout planning process inside the configuration space. To reach a sufficient shop floor layout in a short time, the cartesian configuration space and fast obstacle transformation routines are employed. An optimization algorithm minimizes the length of all collision free paths required for the performance of the workcell task. A final check by a graphical workcell task simulation, whether the layout is valid or not, is no longer required. This new planning approach enhances the conventional layout planning process and reduces the amount of necessary user interaction.

关键词： computer-aided planning workcell design layout planning collision-free path-planning cartesian configuration-space

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AUTOMATED FABRIC INSPECTION BASED ON A STRUCTURAL TEXTURE ANALYSIS METHOD

AUTOMATED FABRIC INSPECTION BASED ON A STRUCTURAL TEXTURE AN...

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SATELLITE CONF AT THE 1.88 BIANNUAL INTERNATIONAL CONF ON PATTERN RECOGNITION : RECENT ISSUES IN PATTERN ANALYSIS AND RECOGNITION

作者： TUFIS, I International Basic Laboratory for Image Processing and Computer Graphics Central Institute for Cybernetics and Information Processes Kurstr. 33 P.O.B. 1298 Berlin Germany Department of Robotics and Real Time Systems Research Institute for Computer Technique and Informatics B-dul Miciurin 8-10 Bucharest 1 71316 Romania

ISBN: (纸本)0387518150

An approach for applying a structural texture analysis method to automatic visual inspection of fabric samples in the textile industry is presented. The main steps (image preprocessing, image segmentation, model description and matching) to accomplish this task are described and also some conclusions are drawn from the preliminary experiments. © 1.89, Springer-Verlag.

关键词： Image segmentation

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Intelligent Manufacturing Components for Future CIM systems

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IFAC Proceedings Volumes 1994年第4期27卷 1-10页

作者： U. Rembold T. Lueth T. Ogasawara University of Karlsruhe Institute for Real-Time Computer Systems and Robotics IPR D-76128 Karlsruhe Germany Electrotechnical Laboratory M.I.T.I. 1-1-4 Umezono Tsukuba Ibaraki 305 Japan

This paper introduces into the general problem of manufacturing, discusses the impact and consequences of the growing internationalisation of markets and gives an overview of the trends in key technologies of manufacturing systems. Furthermore, this paper discusses especially the need for virtual factory concepts and intelligent manufacturing components for future CIM systems. The intelligence of the subsystems is required in large-scale manufacturing systems to master the problems that will result from the system’s complexity.

关键词： Industrial control Manufacturing processes Decentralized control Hierarchical Intelligent control Virtual Factory Intelligent Manufacturing

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Making Configuration Expert System Development Less Costly

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IFAC Proceedings Volumes 1992年第23期25卷 145-150页

作者： Bernd G. Welz Institute for Real-Time Computer Systems and Robotics Prof Dr.-Ing. U. Rembold and Prof. Dr.-Ing. R. Dillmann University of Karlsruhe Postfach 69 80 D-7500 Karlsruhe 1 F.R.Germany

In this paper the software environment KONTEST is introduced which allOWS a non-programmer to build and maintain a knowledge-based configuration tool for a restricted class of configuration tasks. The use of an environment like KONTEST can be especially interesting for small and medium sized companies, that could not afford a customised configuration tool developed from scratch.

关键词： Artificial Intelligence expert system tools and techniques knoweldge based configuration knowledge acquisition

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Application of Error Correcting Codes to Navigation of Autonomous Mobile Robots in a CIM Environment

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IFAC Proceedings Volumes 1993年第1期26卷 247-252页

作者： D.E. Lazic V. Senk M. Rude G. Kandu University of Karlsruhe Computer Science Department Institute for Real Time Computing Systems and Robotics D-7500 Karlsruhe 1 Germany (Fellow of European Community - DG XII) University of Karlsruhe European Institute for System Security D-7500 Karlsruhe Germany University of Karlsruhe FZI-Forschungszentrum Informatik D-7500 Karlsruhe Germany Institute “Jozef Stefan” Jamova 39 SLO-Ljubljana Slovenia

A new concept for navigation of mobile robots based on the planary coded environment (PLACER) is presented, which enables the coordination of several mobile robots in a real manufacturing environment. It is a path independent external navigation system with passive environment structuring over the entire movement area of the robots. This area is completely covered with tiles, each containing the coordinates of its centre point inscribed using an error correcting code

关键词： Robots navigation position control error correction codes

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The HIMAC Project: Hierarchical Management and control in Manufacturing {1.

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IFAC Proceedings Volumes 1997年第1期30卷 309-314页

作者： E. Canuto M. Christodoulou c. Chu F. Donati V. Gaganis B. janusz J.M. Proth W. Reithofer M. Vallauri Dipartimento di Automatica e Informatica. Politecnico di Torino. Corso Duca degli Abruzzi 24 1-10129 Torino. Italy Dept. of Electrical & Computer Engineering. Laboratory of Automation Technical University of Crete. GR-73100 Chania (Crete). Greece INRIA Lorraine Technopôle Metz 2000. Rue Marconi 4. F-57070 Metz. France Institute for Real-time Computer Systems and Robotics. University of Karlsruhe Kaiserstrasse 12 D-76128 Karlsruhe. Germany

The paper presents the major features of the ESPRIT Basic Research HIMAC, proposed to the EC after a thorough investigation of the state of the art of manufacturing systems {1.. HIMAC has followed a new approach, by developing a specific mathematIcs, the Manufactunng Algebra (MA), for modelling and {1.ling the production processes of discrete manufacturing systems. As a key feature, the MA models can be bottom-up aggregated starting from the very detailed levels used in simulation, thus making poSSIble a coherent model hierarchy at the base of the design and realization of Hierarchical {1. strategies and architectures. The formulation of the original mathematical approach and its validation criteria are outlined in the paper. For a deeper understanding, the mterested reader can take advantage of the list of references given at the end.

关键词： Manufacturing systems Production control Hierarchical control

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