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Industrial Technology, 1994., Proceedings of the IEEE International Conference on

5-9 Dec. 1994

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Displaying Results 1 - 25 of 188
  • A distributed system to automate labor-intensive industries and building supervision

    Publication Year: 1994, Page(s):376 - 380
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (485 KB)

    The present paper describes a distributed system, which purpose is to control and manage the operation of different electrical and electronic systems and other equipment. The system was designed to be installed over already in place nonautomated devices, delivering all relevant data either to machine operators or managers; different formats are used in these messages, leading to a hierarchical con... View full abstract»

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  • A study of simulation and collision detection techniques of flexible manufacturing cells

    Publication Year: 1994, Page(s):322 - 324
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    A flexible manufacturing cell (FMC) consists of a machining center, robots, transportation devices and computers. In order to enable such a complex cell to run normally, one should examine the kinematical relationship of the components of the devices in the cell, test the accuracy of positioning and working cycles, and find troubles. This paper describes ideas of simulation and collisions detectio... View full abstract»

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  • New strategy of control at low flicker level for DC electrical arc furnace converter

    Publication Year: 1994, Page(s):500 - 504
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (395 KB)

    Low frequency conducted disturbances are usually induced by AC arc furnaces supplies: harmonic currents and flicker. That is why modern installations use a DC supply, less pollutant and sparing of electrodes. However, this process is not sufficient to reduce flicker during the melting sequence. On the basis of this problem, a structure of a modified bridge rectifier operating in a natural switchin... View full abstract»

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  • Proceedings of 1994 IEEE International Conference on Industrial Technology - ICIT '94

    Publication Year: 1994
    Request permission for commercial reuse | PDF file iconPDF (19 KB)
    Freely Available from IEEE
  • Eddy current effect on the electric model of iron core coil sensor optimisation of its sensitivity

    Publication Year: 1994, Page(s):196 - 200
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (271 KB)

    This paper describes an inductive magnetic sensor for the translation measurement of a metal sheet during the drop-stamping process. This electromagnetic sensor consists in a cast-iron core coil sensor. The coil systems classical approach does not include the eddy current effect in the transducer core. The main particularity of this study is to define the eddy current effect into the cast-iron cor... View full abstract»

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  • Design and rapid prototyping a high performance hardware fuzzy controller with adaptability

    Publication Year: 1994, Page(s):263 - 267
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    The design and implementation of a dedicated hardware controller for high-speed fuzzy control is discussed. By connection to a supervisory processor, the fuzzy controller's knowledge base can be updated at run time, making it suitable for real-time, adaptive control applications. The main part of a two inputs, one output prototype of the fuzzy controller has been implemented on a Xilinx XC4008-6 F... View full abstract»

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  • Design and implementation of a microprocessor-based intelligent electronic meter

    Publication Year: 1994, Page(s):268 - 272
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    This paper presents the design and implementation of a microprocessor-based intelligent electronic measuring apparatus. The meter can measure instantaneous values of voltage, current, and power of electrical power distribution systems. A novel random asynchronous sampling technique that samples voltages and currents at predetermined intervals is exploited so that circuit complexity can be reduced.... View full abstract»

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  • A nonlinear self-organizing fuzzy control system

    Publication Year: 1994, Page(s):88 - 91
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB)

    For nonlinear system control problems traditional control methodology finds it difficult in obtaining accurate mathematic models and adapting them to real world states, while neural network models with self-organization ability on the other hand have become promising to cope with complex systems with little priori knowledge. In this paper, we propose a control design strategy, in which a fuzzy dec... View full abstract»

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  • An improved interpolated FFT algorithm and its application in power harmonics measurement

    Publication Year: 1994, Page(s):273 - 277
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

    This paper proposes an improved interpolated FFT algorithm, in which new windows having small derivatives at their zeros in a low frequency band are designed so that large attenuations on the interference errors caused by the adjacent harmonics can be obtained by using these windows. Hence, power harmonics measurement of high performance, i.e., of high speed and high accuracy, can be realized View full abstract»

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  • The advantages of machine fault detection using artificial neural network and fuzzy logic technologies

    Publication Year: 1994, Page(s):83 - 87
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    Machine fault detection has been attracting significant attention from industry. The early detection of faults in rotating machines can significantly enhance the safety, reliability, and economic issues of industrial operations. With the emerging technology of artificial neural networks and fuzzy logic, the motor fault detection problem can be solved using an innovative approach based on easy acce... View full abstract»

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  • A client/server platform for automation of global network management

    Publication Year: 1994, Page(s):355 - 360
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Automation has been applied to many industries to improve quality of the products and productivity of the workforce. Telecommunications services are no exception. This paper presents a network computing model and architecture that are being used by AT&T to automate its global network management services. The model is based on client/server technology, and the architecture is designed to addres... View full abstract»

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  • Real-time synthesis of linear state observers using a multilayer recurrent neural network

    Publication Year: 1994, Page(s):278 - 282
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Presents a multilayer recurrent neural network for real-time synthesis of asymptotic state observers for linear dynamical systems. The proposed recurrent neural network is composed of two layers of artificial neurons. By solving two matrix equations using the two-layer recurrent neural network, the proposed recurrent neural network is able to determine the output gain matrix of a Luenberger (asymp... View full abstract»

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  • A target recognition method combining neural network with fuzzy decision in static target acquisition

    Publication Year: 1994, Page(s):700 - 703
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (180 KB)

    Static target recognition in a complex background (STRCB) is a very difficult problem. Although we have applied a neural network to our target recognition system and have previously improved system's target recognition ability to some degree, the applied neural network and the target decision method were still simple. A new target recognition method for STRCB which has greatly improved the system'... View full abstract»

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  • A framework for robust neural network-based control of nonlinear servomechanisms

    Publication Year: 1994, Page(s):78 - 82
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    A framework for robust neural network-based control of nonlinear servomechanisms is proposed. It utilizes a general controller structure comprising a nonlinear compensation block and a robust control block. Two strategies for designing the control laws are discussed and uniform stability of the overall system in the presence of modelling mismatches and nonparametric uncertainty is achieved. This f... View full abstract»

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  • Novel approach for fault-tolerance designing

    Publication Year: 1994, Page(s):15 - 19
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (188 KB)

    This paper is concerned with the design method of the control systems which possess fault-tolerance ability against actuator or sensor failures. A state feedback control law which retains asymptotically stable condition against arbitrary actuator failure is derived using a solution of a type of matrix equation and a constraint condition. The presented method is extended to the case of sensor failu... View full abstract»

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  • Process automation with enumeration and traceability tools

    Publication Year: 1994, Page(s):361 - 365
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    Enumeration and traceability software tools have been developed and used in different industries, such as telecommunications and aerospace. Enumeration is a tagging process for linking individual entities to related entities in one-to-one, one-to-many, and many-to-many relationships. The dependencies in a set of documents determine the overall parent-child relationships of entities in a set of doc... View full abstract»

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  • A new prime factor FFT algorithm and its index mapping

    Publication Year: 1994, Page(s):665 - 668
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (164 KB)

    There are many different FFT algorithms, most of which can be distinguished coarsely as common factor algorithm (CFA) and prime factor algorithm (PFA) by the scheme of decomposing two input sequences. Some relationship between CFA and PFA is established by combining the schemes of decomposing data sequences called index mapping schemes for CFA and PFA together. The relationship established shows t... View full abstract»

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  • Visual servo control with artificial neural network

    Publication Year: 1994, Page(s):283 - 287
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    In this paper a robotic manipulator system is presented, which uses visual feedback to control both the position and orientation of the manipulator. In this system, visual data from the camera are directly used in the servo control process of the manipulator, without calculations of the inverse kinematics. This approach is achieved by the use of an artificial neural network (ANN) to learn the rela... View full abstract»

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  • Fiber optic displacement sensor with angstrom resolution

    Publication Year: 1994, Page(s):704 - 706
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB)

    A low-finesse Fabry-Perot interferometric displacement sensor has been developed and tested. Using a high-stability He-Ne laser and perfect signal processing circuits, a noise level of 0.1 Å equivalent reflector displacement was obtained in a bandwidth of 0-1 kHz View full abstract»

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  • Industrial applications of motor control systems in Japan-past and future

    Publication Year: 1994, Page(s):O15 - O23
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    This paper reviews the past and present advances in the industrial applications of motor control systems in Japan. Motor control systems applying the technology of power electronics, have been widely used in the industrial applications The advent of high speed microprocessors and power devices is permitting high control performance which was not possible before. Finally, the paper highlights the f... View full abstract»

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  • Application of artificial neural networks in industrial technology

    Publication Year: 1994, Page(s):73 - 77
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    The application of artificial neural networks to industrial technology is an area that has great potential for exploitation. Many of the applications developed at the University of Tennessee and Oak Ridge National Laboratory are related to equipment and facilities in nuclear power plants. However, the basic principles involved are the same whether the application is to a check valve, rotating mach... View full abstract»

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  • Robust adaptive control of nonholonomic wheeled mobile robot

    Publication Year: 1994, Page(s):245 - 249
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    This paper proposes a robust adaptive control algorithm for nonholonomic mobile robot locomotion based upon the Lyapunov direct method. In this scheme, if the velocity error is greater than the prespecified error bound, the feedback gains are adjusted adaptively such that the predetermined trading error precision is achieved under disturbances. If there exist no disturbances, the proposed algorith... View full abstract»

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  • Error state controller for robotic manipulator

    Publication Year: 1994, Page(s):34 - 38
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    In this paper, an error state controller based on a nonlinear inverse model and an error model is presented. By introducing some auxiliary signals and special matrices the resulting error state equations become linear and decoupled. An optimal error state control input can be determined which minimizes the N-step performance criterion. The simulation results show that this scheme guarantees that t... View full abstract»

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  • Research and design of a distributed control system for process automation

    Publication Year: 1994, Page(s):11 - 14
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    This paper introduces the research and design about a new type of collection-distribution process control system by microcomputer, including the design idea, its technical specification, general structure hardware configuration and software module diagram. The IBM-PC 386/486 and many single-chip microcomputer (Intel 8031/8098) are adopted to construct a multiprocessor real-time central system of c... View full abstract»

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  • Vehicle steering assistance in extreme situations using a fuzzy logic controller

    Publication Year: 1994, Page(s):225 - 229
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    An innovative approach to vehicle control is presented which utilizes a relatively new control technique based upon fuzzy set theory. Within this paper, a fuzzy logic controller (FLC) is developed which, when combined with front and rear independent steering (FRlS), provides the driver greater control or his vehicle by minimizing undesirable spin caused by icy road conditions. From the results of ... View full abstract»

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