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Industrial Electronics Society, 1990. IECON '90., 16th Annual Conference of IEEE

27-30 Nov. 1990

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  • IECON '90. 16th Annual Conference of IEEE Industrial Electronics Society (Cat. No.90CH2841-5)

    Publication Year: 1990
    Request permission for commercial reuse | PDF file iconPDF (193 KB)
    Freely Available from IEEE
  • Robot vision using object models for recognition strategy generation and precise localization

    Publication Year: 1990, Page(s):558 - 563 vol.1
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    A vision system that automatically generates an object recognition strategy from a 3D model and recognizes the object by this strategy is presented. In this system, the appearances of an object from various view directions are described with 2D features, such as parallel lines and ellipses. These appearances are then ranked, and a tree-like strategy graph is generated. It shows an efficient featur... View full abstract»

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  • Vision system for animal cell recognition in a bio-engineering process

    Publication Year: 1990, Page(s):552 - 557 vol.1
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (952 KB)

    An expert system for the recognition and counting of cells using image processing for mass production of interferon beta is described. The biological cells which make interferon beta are taken from animals and cultured on microcarriers, plastic balls/beads 150-200 μm in diameter floating in a culture solution. Cell images are obtained through a microscope connected to a TV camera. The number of... View full abstract»

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  • Colour vision for industrial applications

    Publication Year: 1990, Page(s):548 - 551 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    A vision system for color object recognition is presented. The proposed system is low in cost and sufficiently fast and reliable for simple industrial applications. The system comprises a fiber-optic illumination system, lenses, camera, frame grabber and IBM PC/AT microcomputer with a color monitor. The recognition algorithms are based on RGB and HSI modes. The approach and development of these al... View full abstract»

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  • A Petri net based single chip programmable controller for distributed local controls

    Publication Year: 1990, Page(s):542 - 547 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    A low-cost flexible and efficient programmable logic controller is described. Its hardware is based on a monochip controller, resulting in a low-cost realization, and its software is based on a formal specification tool using interpreted Petri nets and a real-time interpreter. Using such a method, it is possible to validate a specification before its implementation, to implement an application wit... View full abstract»

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  • A multiple-PC based architecture for global database access

    Publication Year: 1990, Page(s):451 - 455 vol.1
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    An architecture for a number of personal computers (PCs) connected in a hierarchical organization is presented. The objective of the architecture is to provide access to a global database for data sharing. The hardware of the proposed architecture, which includes memory mappings, bus arbiter logic, and PC connections, is described. The architecture is functionally compared with conventional single... View full abstract»

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  • Motor speed regulation using neural networks

    Publication Year: 1990, Page(s):1215 - 1220 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    An investigation is conducted of the use of the back-propagation neural network for motion control and speed regulation in industrial servo systems. The goal is to build an intelligent controller or regulator which has a versatility equivalent to that possessed by a human operator. The advantages of neural nets lie in that they are flexible in terms of learning and collective processing capabiliti... View full abstract»

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  • Event driven bus architecture for bounded area networks

    Publication Year: 1990, Page(s):539 - 541 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    A communication architecture for bounded area networks (BANs) is proposed. BANs are communication networks that exist in robots, vehicles, homes, etc. They are characterized by a limited number of stations because of the application, restricted geographic distances, and high reliability requirements. They also differ from local area networks in the higher layers. The architecture of this solution ... View full abstract»

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  • A method of temporal analysis to perform online diagnosis in the context of flexible manufacturing system

    Publication Year: 1990, Page(s):445 - 450 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    The diagnostic step of the error recovery process in an FMS is considered. The approach, called sequence recognition, is based on the idea that time is a major item of information in the diagnosis. The aim is to use an expert system to achieve online diagnosis. Instead of considering time management as a problem, it is used to discriminate the symptoms at the entry of the diagnostic module. The ap... View full abstract»

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  • Zero-current-switched quasiresonant converters with one additional fully regulated output

    Publication Year: 1990, Page(s):863 - 868 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    A solution is proposed in order to obtain an additional fully regulated output in zero-current-switched quasi-resonant converters (ZCS-QRCs). The solution consists of connecting a low-power pulsewidth-modulation (PWM) topology to the resonant switch and modulating the duty cycle (besides the switching frequency) in the power transistor. The PWM topology must have a transformer or a tapped-inductor... View full abstract»

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  • Selecting an optimal neural network

    Publication Year: 1990, Page(s):1211 - 1214 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    A relationship between optimal network design and statistical model identification is described. A derivative of Akaike's information criterion (AIC) is given. This modification yields an information statistic which can be used to select a best network for binary classification problems objectively. The technique can be extended to problems with an arbitrary number of classes View full abstract»

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  • Development of a well-structured industrial vision system

    Publication Year: 1990, Page(s):501 - 506 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (540 KB)

    A well-structured high-speed industrial vision system that emphasizes modularization of fundamental image processors compatible with the standard VME-bus, software realization of application-dependent algorithms, and a pipelined architecture using extra vision buses has been realized. The hardware modules are a binary image projection processor, a general-purpose image processor using a high-speed... View full abstract»

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  • The coordinative decentralized control system based on local communications

    Publication Year: 1990, Page(s):533 - 538 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    Proposes a coordinative decentralized control system architecture (CODA) as a fault-tolerant industrial plant control system. The system can be reconfigured to adapt to its conditions and environment by the coordination of its controllers. To guarantee the appropriate coordination, coordination protocol was designed to be the rules of cooperation among the controllers. The coordination mechanism i... View full abstract»

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  • Force-position-velocity control of an industrial machine in computer integrated manufacturing

    Publication Year: 1990, Page(s):439 - 444 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    A simple heuristic approach for force-position-velocity control of an industrial robot in a CIM environment is presented. This strategy can be used in industrial operations such as milling, grinding, deburring, sanding, buffing, and polishing. As an example, a deburring operation under compliant control of a grinding machine is considered. The approach has been arrived at after a careful analysis ... View full abstract»

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  • New bilateral zero voltage switching AC/AC converter using high frequency partial-resonant link

    Publication Year: 1990, Page(s):857 - 862 vol.2
    Cited by:  Papers (21)  |  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    A zero-voltage switching partial-resonant link AC/AC converter which overcomes the shortcomings of conventional resonant AC and DC link schemes and consists of only 12 unidirectional switches is proposed. The converter synthesizes output AC waveforms with integrals of high-frequency current pulses like series-resonant converters, but switching operations occur at zero-voltage instants instead of a... View full abstract»

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  • DC power chopper SPICE simulation

    Publication Year: 1990, Page(s):1205 - 1210 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    A general-purpose simulation program, with a special adapted SPICE model, integrated in SOLO 2000, is presented for power circuits and systems. This program attempts to solve all design problems related to power electronics systems. Specific power device models have been implemented. Diodes, SCRs, and MOSFETs as well as other semiconductor devices are introduced. A general procedure to choose snub... View full abstract»

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  • Development of a 3D measuring system for semiconductor patterned wafers

    Publication Year: 1990, Page(s):497 - 500 vol.1
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    A fast, automated measuring system has been developed which provides 3D information about semiconductor wafer patterns nondestructively from scanning electron microscope images. The 3D measurement is conducted in two different ways for different patterns: one is pattern height measurement using only one image for trapezoidal patterns, while the other is height profile measurement for smoothly curv... View full abstract»

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  • On the block pulse operator method to solving nonlinear control system with time delay

    Publication Year: 1990, Page(s):120 - 125 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    The author develops a general approximation framework for use in optimal problems governed by nonlinear differential equations with time delay by means of the block pulse operator (BPO). In the framework, the problem of minimization of a cost over space is approximated by a sequence of problems requiring minimization over the image space of the BPO. In the approximating space, the method of solvin... View full abstract»

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  • Generalized theory of synthesis of control systems of zero-order/instantaneous dynamics and infinite disturbance rejection ratio

    Publication Year: 1990, Page(s):311 - 317 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A generalized theory for the synthesis of control systems of zero-order/instantaneous response and infinite disturbance rejection ratio is presented. This theory demonstrates the possibility of using feedforward algorithms to achieve the zero-order dynamics and infinite disturbance rejection ratio, while sensing/estimating some, rather than all, of the system state variables. This possibility is e... View full abstract»

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  • Computer aided design of relay ladder diagram from functional specifications

    Publication Year: 1990, Page(s):527 - 532 vol.1
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    The author describes two complementary software programs, called PROLOC and AILISTD, which make up a high-level computer-aided design package that transforms functional specifications into relay ladder design for direct implementation in a programmable logic controller (PLC). AILISTD uses artificial-intelligence techniques to transform the functional specifications into a state transition diagram ... View full abstract»

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  • Detection and processing of impact echoes in concrete

    Publication Year: 1990, Page(s):340 - 345 vol.1
    Cited by:  Papers (1)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    The impact echo method uses transient stress waves for evaluating subsurface conditions. This method creates a transient stress wave in the object under test by means of mechanical impact, while a suitable transducer detects wave reflections on the surface. Processing of the reflection signals enables deductions to be made concerning the subsurface conditions. Details concerning the design of a hi... View full abstract»

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  • An approach for robot dynamic motion planning with control torques and obstacles constraints

    Publication Year: 1990, Page(s):433 - 438 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    There is no known general solution to the robot dynamic motion problem. The authors present a partial solution by considering the problem of moving the end-effector in minimum time subject to input torque constraints and meanwhile avoiding stationary obstacles. It is assumed that the robots are SCARA-type manipulators. First an ideal geometric path consisting of several line segments in the Cartes... View full abstract»

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  • An intelligent control system for industrial furnace

    Publication Year: 1990, Page(s):62 - 65 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    The principles of intelligent control and the design of an expert intelligent control system (EICS) are discussed. Based on these principles, a novel control system is proposed to deal with the process control of gas carburizing furnaces. Since no critical and accurate mathematical models of the controlled plants are required, this EICS can be directly applied to many industrial furnaces. Its bene... View full abstract»

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  • Multi-output LLCC-type parallel resonant converter

    Publication Year: 1990, Page(s):850 - 856 vol.2
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    A systematic design procedure and experimental results are presented for an LLCC-type parallel resonant converter (PRC-LLCC). A steady-state analysis of the PRC-LLCC that is based on the state variable transformation technique is briefly outlined. This technique makes use of the two-dimensional state-plane diagram. Based on the design technique, a 150 W, 125 kHz multioutput PRC-LLCC power supply h... View full abstract»

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  • An accurate method for modeling transformer winding capacitances

    Publication Year: 1990, Page(s):1094 - 1099 vol.2
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    A simple method of modeling parasitic transformer capacitances is presented. This method allows determination of quantitative values for various transformer parasitic capacitances, allows the utilization of a transformer model for circuit analysis that takes the parasitic effects into account, provides a means of critically judging the merits of various winding configurations, and allows the desig... View full abstract»

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