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    Wyświetlanie 1-7 z 7
    Tytuł:
    The use of fuzzy modelling and reverse inference to analyze the effects of ERP system implementation
    Autorzy:
    Ważna, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/407423.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ERP system implementation
    planned effects
    fuzzy modelling
    constraint satisfaction problem (CSP)
    Opis:
    The paper presents a concept for the use of fuzzy modelling and reverse inference to analyze the effects of planned implementation of an ERP system in a medium-sized manufacturing company. The proposed approach allows the possibility of achievement of the effects corresponding to the assumed enterprise targets to be evaluated, and is based on the assignation of suffcient conditions providing these effects defined in the form of selected indicators. The paper also includes a presentation of the results of computer experiments in the field of the determination of the influence of selected fuzzy modelling parameters on the obtained solutions. The suggested concept is dedicated to consultants of ERP software to support decision-making processes.
    Źródło:
    Management and Production Engineering Review; 2012, 3, 3; 71-78
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    FPGA Implemetation of Acquisition Phase of the GPS Receiver Using XSG
    Autorzy:
    Hawary, Mohamed Ibrahiem El
    Hamza, Gihan Gomah
    Zekry, Abdelhalim
    Motawie, Ibrahiem Mohamed
    Powiązania:
    https://bibliotekanauki.pl/articles/963910.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    GPS receiver
    acquisition phase
    SDR
    Xilinx System Generator XSG
    FPGA implementation
    Opis:
    In the past it was usual to exert a huge effort in the design, simulation, and the real time implementation of the complicated electronic and communication systems, like GNSS receivers. The complexity of the system algorithms combined with the complexity of the available tools created a system that is difficult to track down for debugging or for redesign. So, the simulation and educational tools was different from the prototyping tools. In this paper the parallel search acquisition phase of a GPS receiver was simulated and implemented on FPGA using the same platform and through a graphical programming language. So this paper introduces the fruit of integrating the prototyping tools with the simulation tools as a single platform through which the complicated electronic systems can be simulated and prototyped.
    Źródło:
    International Journal of Electronics and Telecommunications; 2019, 65, 4; 739-744
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Low Power and High Performance Hardware Design for Automatic Epilepsy Seizure Detection
    Autorzy:
    Rafiammal, S. Syed
    Najumnissa, D.
    Anuradha, G.
    Mohideen, S. Kaja
    Jawahar, P. K.
    Mutalib, Syed Abdul
    Powiązania:
    https://bibliotekanauki.pl/articles/963923.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    epilepsy detection
    system on chip
    implementation
    Quadrature Linear Discriminant Analysis
    hardware design
    seizure detection
    Opis:
    An application specific integrated design using Quadrature Linear Discriminant Analysis is proposed for automatic detection of normal and epilepsy seizure signals from EEG recordings in epilepsy patients. Five statistical parameters are extracted to form the feature vector for training of the classifier. The statistical parameters are Standardised Moment, Co-efficient of Variance, Range, Root Mean Square Value and Energy. The Intellectual Property Core performs the process of filtering, segmentation, extraction of statistical features and classification of epilepsy seizure and normal signals. The design is implemented in Zynq 7000 Zc706 SoC with average accuracy of 99%, Specificity of 100%, F1 score of 0.99, Sensitivity of 98% and Precision of 100 % with error rate of 0.0013/hr., which is approximately zero false detection.
    Źródło:
    International Journal of Electronics and Telecommunications; 2019, 65, 4; 707-712
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An Enhanced Run-Length Encoding Compression Method for Telemetry Data
    Autorzy:
    Shan, Y.
    Ren, Y.
    Zhen, G.
    Wang, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/221755.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    multichannel acquisition system
    high compression performance
    run-length encoding with error parameter
    oversampling
    hardware implementation
    Opis:
    The telemetry data are essential in evaluating the performance of aircraft and diagnosing its failures. This work combines the oversampling technology with the run-length encoding compression algorithm with an error factor to further enhance the compression performance of telemetry data in a multichannel acquisition system. Compression of telemetry data is carried out with the use of FPGAs. In the experiments there are used pulse signals and vibration signals. The proposed method is compared with two existing methods. The experimental results indicate that the compression ratio, precision, and distortion degree of the telemetry data are improved significantly compared with those obtained by the existing methods. The implementation and measurement of the proposed telemetry data compression method show its effectiveness when used in a high-precision high-capacity multichannel acquisition system.
    Źródło:
    Metrology and Measurement Systems; 2017, 24, 3; 551-562
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Novel solutions on model-based and model-free robotic-assisted ankle rehabilitation
    Autorzy:
    Arceo, Juan Carlos
    Alvarez, Jorge
    Armenta, Carlos
    Lauber, Jimmy
    Cremoux, Sylvian
    Simoneau-Buessinger, Emilie
    Bernal, Miguel
    Powiązania:
    https://bibliotekanauki.pl/articles/1409032.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    active disturbance rejection
    computed torque control
    differential algebraic equations
    parallel rehabilitation robot
    real-time implementation
    system identification
    Opis:
    In this report, ankle rehabilitation routines currently approved by physicians are implemented via novel control algorithms on a recently appeared robotic device known as the motoBOTTE. The physician specifications for gait cycles are translated into robotic trajectories whose tracking is performed twofold depending on the availability of a model: (1) if obtained via the Euler-Lagrange approach along with identification of unknown plant parameters, a new computed-torque control law is proposed; it takes into account the parallel-robot characteristics; (2) if not available, a variation of the active disturbance rejection control technique whose parameters need to be tuned, is employed. A detailed discussion on the advantages and disadvantages of the model-based and model-free results, from the continuous-time simulation to the discrete-time implementation, is included.
    Źródło:
    Archives of Control Sciences; 2021, 31, 1; 5-27
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    IEC 61850 interface for real time power system simulation
    Autorzy:
    Kurek, Karol
    Nogal, Łukasz
    Kowalik, Ryszard
    Januszewski, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/2128161.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    implementation in real time
    power system
    protection relays testing
    computer simulation
    IEC 61850
    realizacja w czasie rzeczywistym
    system zasilania
    testowanie przekaźników zabezpieczeniowych
    symulacja komputerowa
    Opis:
    Real time simulators of IEC 61850 compliant protection devices can be implemented without their analogue part, reducing costs and increasing versatility. Implementation of Sampled Values (SV) and GOOSE interfaces to Matlab/Simulink allows for interaction with protection relays in closed loop during power system simulation. Properly configured and synchronized Linux system with Real Time (RT) patch, can be used as a low latency run time environment for Matlab/Simulink generated model. The number of overruns during model execution using proposed SV and GOOSE interfaces with 50 µs step size is minimal. The paper discusses the implementation details and time synchronization methods of IEC 61850 real time simulator implemented in Matlab/Simulink that is built on top of run time environment shown in authors preliminary works and is the further development of them. Correct operation of the proposed solution is evaluated during the hardware-in-the-loop testing of ABB REL670 relay.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 3; e137057, 1--6
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    IEC 61850 interface for real time power system simulation
    Autorzy:
    Kurek, Karol
    Nogal, Łukasz
    Kowalik, Ryszard
    Januszewski, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/2173592.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    implementation in real time
    power system
    protection relays testing
    computer simulation
    IEC 61850
    realizacja w czasie rzeczywistym
    system zasilania
    testowanie przekaźników zabezpieczeniowych
    symulacja komputerowa
    Opis:
    Real time simulators of IEC 61850 compliant protection devices can be implemented without their analogue part, reducing costs and increasing versatility. Implementation of Sampled Values (SV) and GOOSE interfaces to Matlab/Simulink allows for interaction with protection relays in closed loop during power system simulation. Properly configured and synchronized Linux system with Real Time (RT) patch, can be used as a low latency run time environment for Matlab/Simulink generated model. The number of overruns during model execution using proposed SV and GOOSE interfaces with 50 µs step size is minimal. The paper discusses the implementation details and time synchronization methods of IEC 61850 real time simulator implemented in Matlab/Simulink that is built on top of run time environment shown in authors preliminary works and is the further development of them. Correct operation of the proposed solution is evaluated during the hardware-in-the-loop testing of ABB REL670 relay.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 3; art. no. e137057
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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