Electrical and Computer Engineering, 1997. Engineering Innovation: Voyage of Discovery. IEEE 1997 Canadian Conference on

25-28 May 1997

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  • CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings

    Publication Year: 1997
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  • Trajectory Control Of Robotic Manipulators Using The Optimal Control Method

    Publication Year: 1997, Page(s):458 - 461
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (218 KB)

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  • Ship Predictor System (SPS)

    Publication Year: 1997, Page(s):524 - 525 vol.2
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (498 KB)

    Summary form only given. Manoeuvring and docking ships in confined waterways is difficult, time consuming and potentially dangerous. Disturbances caused by changing water currents, wind and waves, the rapidly changing effects of the sea bed, and by the approach of other ships add to manoeuvring difficulty. A ship's master or pilot can do little to counter these factors until their effect on the co... View full abstract»

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  • Authors index

    Publication Year: 1997, Page(s):1 - 6
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  • Neural network-based efficiency optimization of EV drive

    Publication Year: 1997, Page(s):454 - 461 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Simulation and modelling of an electric vehicle drive system using a vector controlled induction motor is discussed. An artificial neural network (ANN) based search algorithm is employed in an input-output efficiency optimization scheme for direct torque control (DTC). Comparison is made with the same method applied to a classical rotor flux-oriented (RFOC) drive View full abstract»

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  • Application of fuzzy logic in optimal design of toroidal transformers

    Publication Year: 1997, Page(s):450 - 453 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    Toroidal transformers are widely used in various low power applications such as switching circuits. Optimal design of these transformers involves solution of a series of nonlinear electromagnetic equations. In this paper, the application of fuzzy logic in the optimal design of toroidal transformers is discussed. The objective function could be cost, weight, power loss or any combination of them. T... View full abstract»

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  • Fuzzy neural networks for edge detection

    Publication Year: 1997, Page(s):446 - 449 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    Fuzzy neural networks are designed to detect edges. The research comprises two stages: (1) adaptive fuzzification and (2) detection. The fuzzy neural network consists of three layers of neurons. The first layer is an input layer which is divided into eight groups corresponding to blocks in the input pattern. Hence, the structure information in the input pattern is fully utilized. The second layer ... View full abstract»

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  • Development of a small pneumatic subsea robot

    Publication Year: 1997, Page(s):442 - 445 vol.2
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    “NO MAD” is an intelligent but inexpensive subsea robot that uses a simple air/water ballast tank for depth control. Presently, it has no control over its lateral motion. While drifting with the local current at sea, it could be used to make depth profile measurements at preset depths. It could also be used for seabed exploration. This paper describes the development of “NO MAD&r... View full abstract»

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  • Vector control for induction motor based on minimum variance controller

    Publication Year: 1997, Page(s):761 - 766 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    A new technique for the speed control of a three-phase induction motor (IM) based on a minimum variance controller (MVC) is proposed in this paper. The IM model is derived in a synchronously rotating reference frame using the vector method. This model comprises three input variables and three output variables, and the objective of the proposed controlled system is to achieve rotor speed control, f... View full abstract»

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  • The public switched telephone network and the Internet meet

    Publication Year: 1997, Page(s):892 - 895 vol.2
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    The phenomenal growth of the Internet has provided both a challenge and an opportunity to the public switched telephone network (PSTN). Modem traffic has increased the load on the switched network forcing an upgrade to the network if the accustomed grade of service is be maintained. Telephone companies are also losing revenue to Internet services, further compounding their problems. One solution i... View full abstract»

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  • Evaluation of bandwidth acquisition methods for reservation arbitrated access of multiplexed VBR isochronous traffic over dual bus MANs

    Publication Year: 1997, Page(s):800 - 803 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    We present a reservation arbitrated (RA) access scheme for the efficient transport of variable bit rate isochronous traffic over dual bus metropolitan area networks (MANs) and compare the performance of different bandwidth acquisition methods by simulations View full abstract»

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  • Colour edge detectors: an overview and comparison

    Publication Year: 1997, Page(s):607 - 610 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB)

    There exist many experimental situations in which a subjective rather than an objective test of a specific variable proves to be a much more relevant method of investigation. Because of the intimate relationship between image processing and the human eye, subjective tests are extremely important in the final judgement if an image is passed by the human eye. In this paper, insight into what method ... View full abstract»

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  • An approach for metering real-time reactive power consumption using a neural network approach

    Publication Year: 1997, Page(s):438 - 441 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    The current research focus on the spot pricing of electricity has led to development of complex spot pricing-based electricity rate models. As research matures to implementation stages, approaches to meter the actual power consumption in real-time are required. In this work, the authors model a real-time reactive power metering approach based on neural networks. A spot pricing model which incorpor... View full abstract»

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  • A PLD-controlled multi-speed drive circuit for small electric vehicles

    Publication Year: 1997, Page(s):757 - 760 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    The core of control circuits for electric motors based on the pulse width modulation (PWM) principle can be realized using discrete analog or digital logic devices, microprocessors or dedicated mixed signal circuits. This paper describes a method based on a programmable logic device (PLD). The PLD follows a state machine concept and controls the bi-directional flow of energy between the source (e.... View full abstract»

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  • Evolving optical fiber designs

    Publication Year: 1997, Page(s):888 - 891 vol.2
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The introduction of optical amplifiers early this decade, combined with the advancement of transmitter and multiplexing technology, has allowed the bundling of many transmission channels onto a single fiber. This has occurred simultaneously with an increasing demand for information carrying capacity driven by everything from deregulation to an explosion in Internet use. To meet these challenges, f... View full abstract»

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  • An architecture independent test methodology for SRAM FPGAs

    Publication Year: 1997, Page(s):736 - 739 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    The effective utilization of FPGAs in the implementation of reconfigurable circuits is contingent on the logic and routing integrity of the devices. To assure this integrity, a means of detecting and localizing logic and routing resource faults is required. This paper presents an architecture independent methodology for testing logic and routing resources of SRAM FPGAs. The proposed methodology em... View full abstract»

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  • A robust fuzzy logic handoff algorithm

    Publication Year: 1997, Page(s):796 - 799 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    In this paper a new algorithm for controlling handoff in mobile wireless networks is described. The conventional handoff control algorithm uses averaged values of the received signal strength for handoff decisions. Mobile terminals can take other measurements, such as distances to the base stations, which are useful for handoff decisions. This algorithm uses a decision process based on fuzzy logic... View full abstract»

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  • Control of cusp distortion in power factor correcting boost converter

    Publication Year: 1997, Page(s):650 - 653 vol.2
    Cited by:  Papers (1)
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    Cusp distortion in line current is present in power factor correcting boost converters for a duration of time around the zero crossing of the current. A shunt active power electronic filter and its control to minimize the cusp distortion is considered in this paper. It is shown by ideal switch simulations that the topology considered and the control could be used to reduce the cusp distortion prob... View full abstract»

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  • Automatically localizing discontinuities during surface reconstruction

    Publication Year: 1997, Page(s):603 - 606 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    This paper describes an extension to a class of surface reconstruction algorithms based on the minimization of variation of curvature, the so-called curvature consistency framework. It deals explicitly with the problem of localizing surface discontinuities, which was one of the shortcomings of the original work. Inter-pixel interactions during the variational relaxation based smoothing process can... View full abstract»

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  • Benefits of an integrated navigation system: US Coast Guard cutter JUNIPER leads the way

    Publication Year: 1997, Page(s):854 - 857 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    USCGC JUNIPER is the first of a new class of US Coast Guard ships being built to replace the aging fleet of buoy tenders. Among the more advanced systems is a state-of-the art integrated navigation system (INS). Key components include, an electronic chart display and information system (ECDIS), a dynamic positioning system (DPS), and the use of a local-area network (LAN) that provides information ... View full abstract»

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  • DSP implementation of an artificial neural network for induction motor control

    Publication Year: 1997, Page(s):435 - 437 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    A neural network controller which is trained to perform as an indirect field oriented controller is implemented on a Texas Instruments TMS320C30 digital signal processor (DSP) based system. The computation error at the output of the neural network is investigated and some practical aspects of implementing the neural network on the DSP board is discussed. Experimental results are presented to demon... View full abstract»

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  • Adaptive control for pole-top capacitor banks

    Publication Year: 1997, Page(s):752 - 756 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    This paper investigates the timely operation of switched pole-top capacitor banks on distribution circuits and compares an innovative approach of capacitor-bank switching to those used by many conventional controls now in operation. This paper also reports on the actual field operation of an adaptive capacitor control being incorporated on distribution systems in North America. This control's oper... View full abstract»

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  • Telecommunications network development in Newfoundland and Labrador problems, challenges and opportunities in a rapidly changing environment

    Publication Year: 1997, Page(s):884 - 887 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    The telecommunications industry in Canada is experiencing tremendous change brought about by intensifying competition, technological change and increased bandwidth demands. This will impact telecommunication services delivered to rural and remote parts of Canada and Newfoundland in particular. It is recognized that a modern communications network is vital to our future. To bring such capabilities ... View full abstract»

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  • Effect of protection diodes on the behavior of CMOS gates in the presence of supply dips

    Publication Year: 1997, Page(s):536 - 539 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    This paper shows that, in some CMOS logic gates, the protection diodes may decrease the probability of occurrence of transient failures due to power supply dips. Furthermore, it is observed that protection diodes make output voltage sensitive to some input vectors more than others View full abstract»

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  • Single bridging fault diagnosis for CMOS circuits

    Publication Year: 1997, Page(s):732 - 735 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    This paper presents a new algorithm for diagnosing gate level bridging faults in CMOS circuits. The algorithm employs a single fault assumption, and produces a significantly higher diagnostic resolution than that provided by previous algorithms. Extensive computer simulations are performed to illustrate the merits and feasibility of the new algorithm using the ISCAS85 benchmark circuits View full abstract»

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