Proceedings of IEEE International Conference on Systems, Man and Cybernetics

2-5 Oct. 1994

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  • Robust observer for continuous uncertain systems

    Publication Year: 1994, Page(s):2039 - 2044 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (310 KB)

    In this paper, the robust stability problem of a linear system with parameter uncertainties is handled and a condition is given to ensure the asymptotic stability of the system. Consequently, a robust observer may be designed that takes into account the uncertainties of the system; inequalities are designed that give bounds on the gain of the observer.<<ETX>> View full abstract»

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  • State observer design for analytical non-linear systems

    Publication Year: 1994, Page(s):2045 - 2050 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (325 KB)

    This paper deals with the design of a state observer for analytical control-affine nonlinear systems. By using the notation based on the Kronecker product and power of matrices for the state-space description of these systems, we define an algebraic method for the existence study and the synthesis of nonlinear reduced order state observers.<<ETX>> View full abstract»

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  • Learning to control dynamical systems

    Publication Year: 1994, Page(s):2051 - 2056 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (583 KB)

    The rapid changes and increasing complexity of social and technological systems had lead to the demand of more powerful control theories and systems. Although several adaptive control techniques have been introduced, it is not strong to many real-world problem domains where the degree of uncertainty is too high and the computational complexity grows geometrically with the number of unknown paramet... View full abstract»

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  • An adaptive hybrid force and position learning control of robot manipulators

    Publication Year: 1994, Page(s):2057 - 2062 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    An adaptive position/force learning control scheme is presented for the constrained robot motion. The hybrid position/force control strategy is formulated in the framework of learning control methodology and the developed learning controller converges to the desired inverse dynamics as learning continues. The properties of the learning system: its pointwise convergence, the rejection of unexpected... View full abstract»

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  • Robust adaptive control for robot manipulators using regressor-based form

    Publication Year: 1994, Page(s):2063 - 2068 vol.3
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    In this paper, a robust adaptive control scheme is proposed for robot manipulators. The structure of controller is based on the regressor-based form of the robot model. The presented control scheme does not require a priori any knowledge for uncertainty bounds. The global stability of the closed-loop system is guaranteed by using the Lyapunov stability approach. Furthermore, in the presence of the... View full abstract»

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  • Equivalence of control structures

    Publication Year: 1994, Page(s):2069 - 2074 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (355 KB)

    This paper proposes an equivalence study of control structures. We have determined the design of the internal model control (IMC) scheme in terms of model, controller, and filter by using certain block diagram manipulations from a feedback state with observer as a starting structure.<<ETX>> View full abstract»

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  • Data-linked associate systems

    Publication Year: 1994, Page(s):2075 - 2079 vol.3
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (511 KB)

    An integrated management and decision-aiding approach for global control of the ATM system is needed. It is based on the premise that maximum efficiency can be reached only by synchronizing the total ATM decision-making process including the pilot in command (i.e., flight deck), the airline operations center (AOC), and the air traffic service (ATS) provider. Linkage of ATM decision makers is achie... View full abstract»

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  • A model for intent interpretation for multiple agents with conflicts

    Publication Year: 1994, Page(s):2080 - 2085 vol.3
    Cited by:  Papers (6)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (531 KB)

    Intent interpretation is the process of forming a causal explanation of the observed actions of an agent in terms of the current purposes of the agent. Most of the current work in this area has dealt with interpretation of the actions of single agents without unresolved conflicts. This paper describes the use of the plan-goal representational approach as originally formulated in Geddes (1989) to i... View full abstract»

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  • Design of the real time aspects of associate systems

    Publication Year: 1994, Page(s):2086 - 2090 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (437 KB)

    A pilot's associate system contains artificial intelligence modules that assess the situation, recommend responses, manage displayed information, monitor for errors, and adaptively execute tasks on behalf of the pilot. Artificial intelligence modules represent a risk to real time performance because their run time performance is typically both slow and unpredictable. A methodology is described for... View full abstract»

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  • A scalable framework for adding crisp knowledge to pilot/vehicle interfaces

    Publication Year: 1994, Page(s):2091 - 2096 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (475 KB)

    Many types of operation are heavily dependent on automated use of data generated both on-board and off-board. Historically, the volume of data and the required response rates keep growing because of such factors as task and system complexity. This reality pushes human operators to their limits of cognition and memory, causing systems to be difficult to operate for a single human without automated ... View full abstract»

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  • Structuring knowledge representation for the rotorcraft pilot's associate program

    Publication Year: 1994, Page(s):2097 - 2101 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (441 KB)

    We have continued to develop and extend the knowledge representation forms that we worked to develop in the pilot's associate program. The knowledge base editing tool and the use of knowledge representation specification language represent both a culmination of our prior efforts in knowledge acquisition and knowledge representation and our most progressive course to defining generic approaches for... View full abstract»

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  • Task dependent information management in a dynamic environment: concept and measurement issues

    Publication Year: 1994, Page(s):2102 - 2107 vol.3
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (518 KB)

    Task dependent information management coordinates tailored displays of information with specific operator tasks. We begin this paper by describing the potential benefits of task dependent information management, and then address the performance measures we have adopted to refine and develop the software to achieve information management in a dynamic environment.<<ETX>> View full abstract»

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  • A neural network approach to seismic event identification using reference seismic images

    Publication Year: 1994, Page(s):2108 - 2113 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    A data compression neural network is known to have both data compression capability and generalization capability. In this study, a data compression neural network is trained using reference seismic images to rapidly identify natural earthquakes and underground explosions. The method developed is based on the generalization properties of the trained neural network and a quantitative measure of the... View full abstract»

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  • Application of adaptive neural network to localization of objects using pressure array transducer

    Publication Year: 1994, Page(s):2114 - 2119 vol.3
    Cited by:  Patents (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    Pattern recognition and object localization, using various sensors such as vision and tactile sensors, are two important areas in the application of robotic systems. This paper demonstrates the feasibility of using some relatively inexpensive pressure sensors and a neural network to achieve object localization and pattern recognition. The sensors used are force sensing resistors (FSRs), more speci... View full abstract»

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  • Nonlinear dynamic systems identification with dynamic neural networks for fault diagnosis in technical processes

    Publication Year: 1994, Page(s):2120 - 2125 vol.3
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    Based on the dynamic neuron model-the so called dynamic elementary processor-a dynamic multilayer perceptron neural net (DMLP) is applied to identify black box models of the process. The dynamic adaption algorithm is briefly introduced and compared to other adaption procedures. However, the identified models are used to build the first step of a fault diagnosis scheme (FDS) similar to observer bas... View full abstract»

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  • Decentralized neural controller design for space structural platforms

    Publication Year: 1994, Page(s):2126 - 2131 vol.3
    Cited by:  Papers (1)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (530 KB)

    A decentralized neural control system is advocated for flexible multibody structures. The proposed neural controller is designed to achieve trajectory maneuvering of structural member as well as vibration suppression for precision pointing capability. The motivation to support such an innovation is to pursue a real-time implementation of robust and fault tolerant structural controller. The propose... View full abstract»

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  • A novel method of speech recognition using feedforward neural network technology

    Publication Year: 1994, Page(s):2132 - 2135 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    A feedforward neural network is designed for speech recognition using one step ahead prediction techniques which is basically derived from Gabor's theory of communication and cybernetics. The simulation results are carried out on speech data with noise and without noise, which indicate better performance.<<ETX>> View full abstract»

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  • Low level communication for a distributed piloting architecture inside a flexible cell

    Publication Year: 1994, Page(s):2136 - 2141 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    Inside an integrated manufacturing system, it is important to take into account the problem of piloting. The piloting of the devices is bound to the architecture of the manufacturing system. Our previous laboratory research showed that the best piloting architecture is a distributed one. Two levels of piloting are then distinguished: the higher cell level piloting, and the lower station level pilo... View full abstract»

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  • IRMA: real-time, distributed process management using Schemer

    Publication Year: 1994, Page(s):2142 - 2146 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (595 KB)

    Distributed production processes make complex demands. A control system with only one kind of solution process cannot readily handle these complex challenges. This sets out a multiprocessing system and a suite of tools to meet these challenges. We begin by setting out our aims in this research. We describe an application to control of emissions from geothermal power plants. Our discussion focuses ... View full abstract»

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  • Design of real time vehicle identification system

    Publication Year: 1994, Page(s):2147 - 2152 vol.3
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    One of the vehicle identification techniques is to recognize the license plate numbers. The license plate recognition system consists of three major parts: sensing, image capturing, and recognition. The car sensing part is usually based on proximity or loop coil sensors and sends the signal to the image capturing part to trigger a video camera. The image capturing part, after receiving the trigger... View full abstract»

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  • Road modelling and vehicle detection by using image processing

    Publication Year: 1994, Page(s):2153 - 2158 vol.3
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (530 KB)

    In this paper, we present methodologies of motion detection using vision system applied to road traffic. The using of mathematical morphology, the studying of perspective influences and signal processing are representing the major innovation of our methodologies. First, we present the state of the art and an initialisation phase which involves road modelling and calibration of the vision system. S... View full abstract»

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  • Computer integrated radio monitoring for emergency situations

    Publication Year: 1994, Page(s):2159 - 2164 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    This paper presents a computer based radio monitoring stand alone system design and possible use in actual emergency situations. Hardware is selected and software is developed and tested. Selection criteria are based on inexpensive but reliable, commercially available technologies so that the general public can have easy access to the proposed system in order to retrieve vital information during e... View full abstract»

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  • Power substation supervisory control

    Publication Year: 1994, Page(s):2165 - 2170 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (546 KB)

    This paper approaches the utilization of expert system (ES) in operation and control of power substations, within a practical and far-reaching view. Initially, the paper delineates the potential areas and the relevance of utilization of ES as a practical tool in power substation (SE) control and operation. Then, a review of the requirements and organizational aspects is made, with evaluation of th... View full abstract»

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  • Case-oriented planning support system for business information systems

    Publication Year: 1994, Page(s):2171 - 2176 vol.3
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (490 KB)

    A structural model which represents the causal relationships of problems using a directed graph is one of the effective techniques for problem analysis in business information systems planning. However, is very difficult for novice system planners to make a structural model of reasonable quality. In this paper, we propose a support method of structural modeling by providing useful information from... View full abstract»

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  • A decision support system for evaluating non-utility investment in electricity production

    Publication Year: 1994, Page(s):2177 - 2183 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (551 KB)

    This paper describes C-STEM (Cogeneration and Storage Technology Evaluation Model), a menu-driven, macro-controlled Lotus 123 spreadsheet based model for evaluating the economics and load impacts of electricity production by the customers of an electric utility. The main purpose of the decision support system described is to evaluate one of the newest and most promising demand side management stra... View full abstract»

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