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Industrial Electronics, 1992., Proceedings of the IEEE International Symposium on

Date 25-29 May 1992

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Displaying Results 1 - 25 of 209
  • An adaptive learning control scheme for manipulators

    Publication Year: 1992 , Page(s): 375 - 379 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (266 KB)  

    The author presents a simple adaptive learning control scheme for multi-joint robotic manipulators based on the independent joint adaptive control and iterative learning control concepts. The control scheme consists of an adaptive law and a learning law. The adaptive law is designed by the Lyapunov method; less knowledge about the manipulator dynamics is required, and only the position and velocit... View full abstract»

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  • Proceedings of the IEEE International Symposium on Industrial Electronics (Cat. No.92TH0371-5)

    Publication Year: 1992
    Request Permissions | PDF file iconPDF (52 KB)  
    Freely Available from IEEE
  • Discussion on adaptive array signal processing

    Publication Year: 1992 , Page(s): 450 - 453 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (227 KB)  

    In this paper, the authors study four kinds of adaptive arrays. The authors give four optimal weight vectors and one consistent signal to interference noise ratio (SINR) formula. On this basis, they discuss how to further improve the SINR by adaptive array optimal design. Finally, one example is presented to verify their conclusions.<> View full abstract»

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  • A microcomputer-based 2-axis stepper motor motion control system

    Publication Year: 1992 , Page(s): 167 - 171 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (240 KB)  

    A microcomputer-based stepper motor motion control system has been developed to address the performance limitations and relative inflexibility of many microprocessor-based systems. This system features two-axis closed-loop control, high pulse rates in support of microstepping drivers, sensor integration, and complex trajectories and velocity profiles. A key aspect of the system, i.e. online trajec... View full abstract»

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  • Programmed PWM inverter using PC for induction motor drive

    Publication Year: 1992 , Page(s): 823 - 824 vol.2
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (172 KB)  

    A PC/AT (Intel 80286 based) controlled transistorized inverter with programmed PWM technique for induction motor speed control is discussed. The switching angles for eliminating unwanted harmonics up to 600 Hz are predetermined such that the immediate dominant voltage harmonic is minimized. The realization aspects of the above technique and the method by which closed loop speed control is achieved... View full abstract»

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  • Development of CAPP system for removal operation of 3D free surfaces

    Publication Year: 1992 , Page(s): 404 - 408 vol.1
    Cited by:  Papers (2)  |  Patents (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (400 KB)  

    The authors deal with the development of a computer aided process planning system (CAPP) for manufacturing products having 3D free-form surfaces. It is difficult to perform a form feature modeling of free-form surfaces, and to clear the relationship between the removal form and cutting tool form. To solve these problems, the authors extract the concavity of the product model by paying attention to... View full abstract»

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  • A study on an AC active load simulator

    Publication Year: 1992 , Page(s): 69 - 73 vol.1
    Cited by:  Patents (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (256 KB)  

    An AC active load simulator is realized and tested which can simulate an AC load impedance excited by an AC voltage source. An interface circuit is designed to compute the simulated current waveform for the load-driver circuit according to the specified impedance network and the measured source frequency and voltage amplitude. Both inductive and capacitive loads can be simulated by adjusting the p... View full abstract»

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  • Using the function-controlled technique in a small-type UPS

    Publication Year: 1992 , Page(s): 543 - 546 vol.2
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (232 KB)  

    A small uninterruptible power supply (UPS) with a function-controlled PWM charger and SPWM inverter has been realized. The system has high reliability, low total harmonic distortion and fast dynamic response of the output voltage of the inverter, and strong load adaptability. The system performances are verified by experiments View full abstract»

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  • Design of a variable structure controller for drum motor in home VCR

    Publication Year: 1992 , Page(s): 138 - 142 vol.1
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (288 KB)  

    A variable structure controller is designed to control both the speed and phase of the drum motor in a home VCR. This control system is implemented by using a DSP (digital signal processor: TMS320C25). A variable structure control algorithm is employed for high robust performance and fast response characteristics. Details of hardware and software design are presented View full abstract»

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  • Digital signal processing of SINAD measurement for cordless telephone

    Publication Year: 1992 , Page(s): 476 - 480 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (320 KB)  

    This paper describes the development of a RF range tester to measure the performance of cordless telephones. The proposed hardware consists of a Motorola DSP56001 digital signal processor (DSP), a HP11713A programmable attenuator switch driver, an artificial central office simulator and an artificial ear. Software development includes data acquisition of test signals, calculation of fundamental fr... View full abstract»

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  • Collision-free path generation for robot arm in 3D

    Publication Year: 1992 , Page(s): 400 - 403 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (212 KB)  

    The problem of avoiding collision with obstacles is essential in robotics. Generation of a collision-free path from a specified source point to a goal point in 2D can be successfully solved by using the visibility graph method. But in the case of 3D, it is difficult due to its heavy computation. Based on the concepts of go-over-obstacle and go-round-obstacle and a storied structure, a simple algor... View full abstract»

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  • Time-domain simulation of Class-E DC/DC converters by using finite element method

    Publication Year: 1992 , Page(s): 685 - 689 vol.2
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (232 KB)  

    A computer-aided time-domain simulation of Class-E DC/DC power converters is accomplished by using the finite method. Firstly, the state-space equations of various switching topologies are formulated. By adopting Galerkin's weighted residual approach, the state-space equations are transformed into a recurrence formula and the solution is unconditionally stable. The approach is so simple and genera... View full abstract»

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  • Intelligent control system design of draft machine drivers by linear DC motor

    Publication Year: 1992 , Page(s): 821 - 822 vol.2
    Request Permissions | Click to expandAbstract | PDF file iconPDF (192 KB)  

    Presents a new type of flatbed plotter, which uses two linear DC motors to directly drive the bridge and the pen carriage respectively, without gear gaps and backlashes, thus raising the rigidity of transmission and the resonant frequency. Those factors which are imposed on the servo motor and seriously worsen the performance of the control system have been eliminated so that it is quite possible ... View full abstract»

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  • Single phase to three phase conversion without DC filter

    Publication Year: 1992 , Page(s): 547 - 550 vol.2
    Request Permissions | Click to expandAbstract | PDF file iconPDF (224 KB)  

    Single phase to three phase power converters consisting of: controlled rectifiers for converting unregulated single phase AC to regulated DC voltage; a DC filter for reducing the ripple voltage; and a three phase inverter for converting DC to balanced three phase voltages are the state of the art. The filter circuit consisting of electrolytic capacitors and DC chokes claim 25% of material cost, an... View full abstract»

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  • A control system of carburization using fuzzy-PID combined controller

    Publication Year: 1992 , Page(s): 136 - 137 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (144 KB)  

    An actual control system of carburization, which is nonlinear and contains significant dead-time, is described. Beginning with designing a conventional PID controller, the authors introduce a new PID-fuzzy combined controller to obtain a more desired system response and to avoid the tuning of PID parameters. The operation of the control system has shown higher carburizing quality and better respon... View full abstract»

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  • GTR adaptive drive and protection

    Publication Year: 1992 , Page(s): 611 - 614 vol.2
    Request Permissions | Click to expandAbstract | PDF file iconPDF (204 KB)  

    Obvious advantages are inherent in the adoption giant transistors (GTR) as the power elements to make up pulsewidth modulated (PWM) inverters. The development of improved GTR characteristics has great connection with the base drive circuit. The authors describe the best drive and protection of GTR and put forward the best drive circuit with protective functions. The circuit adopted is an adaptive ... View full abstract»

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  • ISDN-to-infrared link interface

    Publication Year: 1992 , Page(s): 786 - 788 vol.2
    Request Permissions | Click to expandAbstract | PDF file iconPDF (212 KB)  

    Describes a special interface that was developed in order to implement a network using infrared (IR) radiation as communication channel for the terminals and utilizing the inherent capabilities of the integrated services digital networks (ISDN). The developed interface provides a suitable means for adapting the basic access ISDN (192 kb/s) to the IR terminals in a two-way IR communication channel,... View full abstract»

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  • An approach to interconnection, modelling and simulation for a multi-robot workcell

    Publication Year: 1992 , Page(s): 342 - 346 vol.1
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (416 KB)  

    For a robotic workcell with multiple robots, several interconnection methods are presented in terms of the processor based architecture. Since few attempts have been made to formulate and analyze multi-robot interconnection system (MRIS), the authors turn the knowledge of multiple processor system (MPS) or multiple computer system (MCS) to good account. The systems are modelled using the queuing n... View full abstract»

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  • Clustering in color feature space for image correspondence

    Publication Year: 1992 , Page(s): 481 - 485 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (352 KB)  

    An algorithm for matching image regions of multiple images is presented in this paper. The authors describe a clustering algorithm for grouping the similar tokens of regions and for selecting significant regions in HVS perceptual space. They also present a matching algorithm that uses classification information to plan a matching strategy: less ambiguous significant regions are matched first and a... View full abstract»

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  • Artificial intelligence for real-time monitoring and control

    Publication Year: 1992 , Page(s): 290 - 294 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (580 KB)  

    The author describes MARVEL, an automated monitoring and analysis environment with multiple expert systems that has been developed and successfully applied to the automation of interplanetary spacecraft operations at NASA's Jet Propulsion Laboratory. Automated monitoring and knowledge-based diagnostics of spacecraft anomalies have been part of MARVEL since it was used to monitor the Voyager missio... View full abstract»

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  • Average resonant current method for analysis of zero voltage quasi-resonant converters

    Publication Year: 1992 , Page(s): 690 - 693 vol.2
    Request Permissions | Click to expandAbstract | PDF file iconPDF (168 KB)  

    A analysis method for zero voltage quasi-resonant power converters using the average resonant current method (ARCM), is presented. Based on the averaging concept the ARCM removes the low-frequency part from these converters and make the speed of computation much higher. A computer simulation is made to verify the ARCM View full abstract»

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  • Tuning of PI controllers based on gain and phase margin specifications

    Publication Year: 1992 , Page(s): 879 - 882 vol.2
    Cited by:  Papers (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (208 KB)  

    The authors examine a class of tuning formula associated with the relay auto-tuning, cross correlation auto-tuning and other self-tuning PI/PID controllers. These methods measure the ultimate gain, ultimate period, simplified process model parameters e.g. gain, time constant and dead-time or some related frequency response data e.g. a point on the Nyquist curve. The estimates are then used in the ... View full abstract»

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  • An investigation of the effect of distributed structure flexibility on behavior of single-link manipulator force-feedback control system

    Publication Year: 1992 , Page(s): 320 - 323 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (196 KB)  

    In previous research, the authors obtained some high accuracy dynamic models for flexible manipulators. On the basis of the above dynamic models, some further research was made, which is going to be reported in this paper, to investigate the effect of distributed structure flexibility on behavior of a single-link manipulator force-feedback control system View full abstract»

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  • Dynamic modeling for two coordinating flexible robots grasping an object

    Publication Year: 1992 , Page(s): 395 - 399 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (288 KB)  

    The authors discuss the dynamic modeling of two coordinating robots having flexible links. The formulation of the dynamics is conducted analytically using Hamilton's extended principle. The resultant equations consist of inertial, cariolis, centrifugal, gravitational, and exerted force terms. They are expressed by independent generalized coordinates. The complete model of two coordinating flexible... View full abstract»

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  • Mathematical model-building and two-stage microcomputer adaptive control for phthalic anhydride production process

    Publication Year: 1992 , Page(s): 126 - 130 vol.1
    Request Permissions | Click to expandAbstract | PDF file iconPDF (260 KB)  

    A two-order model for a phthalic anhydride production process with time delay has been proposed with a synthetic method of mechanism analysis and system identification, and a self-tuner with a feedforward PID structure has been designed. A two-stage microcomputer control system structure is proposed as a simple distributed computer control system. The software in the higher level computer, used fo... View full abstract»

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