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Emerging Technologies and Factory Automation, 1999. Proceedings. ETFA '99. 1999 7th IEEE International Conference on

18-21 Oct. 1999

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  • 1999 7/sup th/ IEEE International Conference on Emerging Technologies and Factory Automation [front matter]

    Publication Year: 1999, Page(s):i - xviii
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    Freely Available from IEEE
  • Modeling, simulation and perturbation analysis of continuous flow models

    Publication Year: 1999, Page(s):1529 - 1530 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (115 KB)

    Summary form only given. A generic approach to modeling, simulation and sensitivity analysis of continuous flow processes is described. Based on a single-server device, it can serve as a building block in various network configurations, and its application can result in fast simulation and unbiased sensitivity analysis estimators. View full abstract»

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  • Author's index

    Publication Year: 1999, Page(s):1567 - 1573
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    Freely Available from IEEE
  • Control of industrial robot with a fieldbus

    Publication Year: 1999, Page(s):1235 - 1241 vol.2
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    The paper deals with the control of an industrial robot on a local area network using an industrial fieldbus: the PROFIBUS DP. The main goal is to explain the use of this architecture in order to make available a distributed control and to open the control scheme. Next, we present different advanced control schemes and their implementation with an industrial robot. With this new control system, di... View full abstract»

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  • Constrained MIMO self-tuning composition control in cement industry

    Publication Year: 1999, Page(s):1021 - 1028 vol.2
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    The main goal of the raw meal blending control in cement industry is to maintain near the reference moduli values and to decrease the variation of the chemical composition rejecting the disturbances. In this paper, the proposed constrained self-tuning controller deals with not only the quality control but quantity control as well. This is accomplished by inserting a energy term into the quadratic ... View full abstract»

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  • Digital control of an autonomous guided vehicle

    Publication Year: 1999, Page(s):1485 - 1488 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    The paper deals with the digital control design of an autonomous vehicle of a four wheeled vehicle with two independent movements per wheel. This vehicle has been designed by CERTAP (Reference Center for Manufacturing Advanced Technologies) Consortium. There are two versions of digital control of each course wheel: a conventional digital filter + PID controller and a fuzzy controller using two inp... View full abstract»

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  • Low cost distributed control system with protocol implemented by software

    Publication Year: 1999, Page(s):1225 - 1233 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    The technology used in process automation is evolving towards distributed control systems, both as physical and functional characteristics and structures. In this paper, we present a prototype oriented to distributed process control with a set of special characteristics: low computational load, low requirements of bit rate, medium reliability and very low cost. A system based on general purpose mi... View full abstract»

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  • Framework for managing intranet-based applications

    Publication Year: 1999, Page(s):1011 - 1019 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    This paper focuses on the intranet technology as a solution to the organizing of the information system within companies in order to coordinate the activities of the various actors involved efficiently. The functional and organizational structure of companies guides the informational structure of their information system. The methodological basis underlying the design of information systems are pr... View full abstract»

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  • The mobile robot “staff”: mechanical analysis and design

    Publication Year: 1999, Page(s):1477 - 1484 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    The development of a fully mobile omnidirectional vehicle intended for flexible manufacturing plants (mechanical, pipeless chemical plants and others) and loads up to 1200 kg is presented. Four identical steering/tractive units with conventional wheels are used. An accurate dynamical formulation has been developed in order to improve the dead reckoning accuracy. It takes into account the dependenc... View full abstract»

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  • Open control architecture for discrete manufacturing automation

    Publication Year: 1999, Page(s):1213 - 1224 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (976 KB)

    This paper presents results of the European ESPRIT project 8823 DCC (discrete cell control), aimed to define the reference architecture of a cell controller, describing the required communication and information infrastructure, applications and engineering support. Based on this architecture, an engineering methodology and a set of supporting tools (called DCC-Core) have been developed and validat... View full abstract»

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  • RBF approach for trajectory interpolation in self-organizing map based condition monitoring

    Publication Year: 1999, Page(s):1003 - 1010 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (948 KB)

    Self-organizing map trajectory interpolation using radial basis functions is proposed for process condition monitoring. Self-organizing maps are a powerful means to visualize the state of a process. However, a quantization process takes place when input vectors are mapped onto the grid (output) space. The discrete nature of the output space gives rise to a considerable loss of information which is... View full abstract»

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  • Applications of discrete-event state equations to manufacturing systems

    Publication Year: 1999, Page(s):1519 - 1528 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (900 KB)

    The paper addresses the problem of modelling and controlling manufacturing systems within the framework offered by the Manufacturing Algebra (MA). The method is outlined through a case study, including production micro- and macro-irregularities. The design of a hierarchical real time controller capable of satisfying the demand of finished products arising from an unpredictable factory planner is a... View full abstract»

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  • Evaluation of optimal ordering method for coupling point production system

    Publication Year: 1999, Page(s):1469 - 1474 vol.2
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    A new ordering system aims to prevent running out of stock, to limit replenishment quantities and to keep reasonable stock levels for multiple items. In the lot-size re-order system and the interval re-order system, replenishment intervals or quantities are determined by each system after replenishment items are decided. When both re-order systems run for multiple items, the total replenishment qu... View full abstract»

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  • The convergence of intelligent software agents and field area networks

    Publication Year: 1999, Page(s):917 - 922 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    This paper discusses how intelligent software agents can be implemented on the nodes of a field area network (FAN). A number of aspects are to be mentioned to adapt this booming part of distributed artificial intelligence for FANs. First the typical properties of a FAN such as its small bandwidth and low computational power in the nodes restrict the possibilities for agent design. On the other han... View full abstract»

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  • Towards a formal engineering framework for process automation

    Publication Year: 1999, Page(s):1167 - 1175 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (716 KB)

    This paper describes an attempt towards a formal modelling framework for process automation aiming at facing the reusability of the engineering studies on industrial systems. As hypotheses, we consider that such a framework should be based on concepts issued from the system theory to master the functional, structural and behavioural studies carried out in process automation. Formalisation of the b... View full abstract»

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  • Using objects collaboration to model the control of an industrial system

    Publication Year: 1999, Page(s):1207 - 1212 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Our aim is to define a structured approach and language elements in order to produce a software to simulate an autonomous industrial control system at first time and then to extract the sub-part of this software that will be implemented in the target material used for control. We propose a strong work hypothesis on the generic hybrid dynamic system modeled. We use an object approach and especially... View full abstract»

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  • “Neither master nor slave...”. A practical case study in the development and employment of cleaning robots

    Publication Year: 1999, Page(s):1427 - 1434 vol.2
    Cited by:  Papers (8)  |  Patents (91)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    Industrially-oriented robotics research over the past decade has turned its attention to applications outside manufacturing environments. This is leading to the development of so-called “service robots”. The function of a service robot necessarily entails greater focus on human factors issues. This industrial-perspective overview paper presents current floor-cleaning robots, and in par... View full abstract»

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  • Integration of dynamic models in gas turbine supervision control

    Publication Year: 1999, Page(s):995 - 1001 vol.2
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    This paper presents the use of dynamic models in a real time supervisory system for fault detection in gas turbines. The analytical redundancy, given by quantitative and qualitative models of different gas turbine subsystems, is implemented in a specific software Ca~En, which is very useful to represent hard to measure and ill-known dynamic systems, such as the case of gas turbines View full abstract»

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  • Colored Petri nets for the performance evaluation of a semiconductor fabrication facility

    Publication Year: 1999, Page(s):1071 - 1080 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (900 KB)

    The design, implementation, and operation of modern manufacturing systems is a complex task. Without powerful modeling and performance evaluation techniques it is practically impossible to efficiently design a manufacturing system. In the paper the application of Petri net modeling and analysis techniques is demonstrated using a real-life industrial example from the semiconductor fabrication field... View full abstract»

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  • Modular agent design for field bus management

    Publication Year: 1999, Page(s):857 - 864 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB)

    The remote access to field area networks via the Internet is a suitable way to facilitate process monitoring and field bus management. With the aid of common management standards like the management protocol, SNMP, this approach also becomes field-bus-independent and interoperable with LAN technology. The only part that requires adaptation to the particular field bus under observation is the proxy... View full abstract»

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  • Mobile monitoring system using an agent-oriented approach

    Publication Year: 1999, Page(s):1511 - 1515 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    The paper describes the work done in the construction of a vision based monitoring station, devoted to control an indoor industrial transport system composed of mobile robots. To construct this application, the essential needs of a generic surveillance system has been analysed. Using an agent oriented approach, a multi agent platform has been established, where different algorithms and strategies ... View full abstract»

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  • Products lifecycle management system using radio frequency identification technology

    Publication Year: 1999, Page(s):1459 - 1467 vol.2
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (808 KB)

    Hitachi Ltd. has been conducting research, development and experiments on a product lifecycle management system using radiofrequency identification (RF-ID) tags, based on next-generation identification technology, in order to correctly collect and process used products. This system makes it possible to collect and process used products efficiently and to correctly monitor the product status, from ... View full abstract»

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  • Evolutionary learning agents for shop floor control

    Publication Year: 1999, Page(s):893 - 899 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    We describe a novel approach for shop poor control combining a distributed multi-agent structure and computational intelligence techniques. Shop floor activities are controlled by a network of autonomous agents. Each agent makes its decision with a fuzzy algorithm evaluating all the alternative actions with multiple criteria based on real time measures of shop's conditions. A tuning mechanism of t... View full abstract»

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  • Concave reflective surfaces topographic inspection using robust non-contact techniques

    Publication Year: 1999, Page(s):1147 - 1154 vol.2
    Cited by:  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1160 KB)

    A robust non-contact technique for performing topographic measurements on reflective concave surfaces is presented, allowing the measurement of submicrometric features of the surfaces under test. The advantages of a non-contact optical technique are combined with a robustness to environmental alterations (no vibration isolated mounts, tolerance to the positioning of the sample) which makes it an o... View full abstract»

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  • Using genetic algorithm for job-shop scheduling problems with reentrant product flows

    Publication Year: 1999, Page(s):1339 - 1346 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    We describe a job-shop scheduling method using a genetic algorithm for a production system with reentrant product flows. Fundamentally, the scheduling problem is a sequencing problem of operating order for lots on each process or machine. The difficulty in job-shop scheduling problems with reentrant product flows are these two points. The first point is that there are a large number of processes i... View full abstract»

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