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Wyszukujesz frazę "material handling system" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
A genetic fuzzy approach to estimate operation time of transport device
Autorzy:
Smoczek, J.
Szpytko, J.
Powiązania:
https://bibliotekanauki.pl/articles/247484.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
failure prediction
fuzzy genetic system
material handling system
Opis:
The classic approach to evaluate the probability that an operational system is capable to operate satisfactorily and successfully perform the formulated tasks is based on availability that is coefficient which is determined based on the history of down-time and up-time occurring, while the risk-degree of down-time occurring strongly depends on the actual operational state of a system. The intelligence computational methods enable to create the diagnosis tools that allow to formulate the prognosis of operating time of a system and predict of failure occurring based on the past and actual information about system's operational state, especially genetic fuzzy systems (GFSs) that combine fuzzy approximate reasoning and capability to learn and adaptation. The paper presents the fuzzy rule-based inference system used to predict the operating time of exploitation system according to the specified operational conditions. The proposed algorithm was used to design the fuzzy model applied to estimate the operating time of a system between the actual time and predicted time of the next failure occurring under the stated operational parameters. The fuzzy system allows to prognoses the time of the predicted failure based on the operational parameters which are used to evaluate the actual operational state of the system. The attention in the paper is focused on the evolutionary computational techniques applied to design the fuzzy inference system. The paper proposes the genetic algorithm based on the Pittsburgh method and real-valued chromosomes used to optimize the knowledge base and parameters of antecedents and conclusions of the Takagi-Sugeno-Kang (TSK) fuzzy implications. The paper is the contribution to the GFSs, which aim is to find an appropriate balance between accuracy and interpretability, and also contribution to the research field on the diagnosis methods based on soft computing techniques. The evolutionary algorithm was tested for designing the fuzzy operating time predictor of material handling device.
Źródło:
Journal of KONES; 2011, 18, 4; 601-608
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Material handling devices operation enyironment 3D-type presentation based on laser scanning systems
Autorzy:
Szpytko, J.
Hyla, P.
Powiązania:
https://bibliotekanauki.pl/articles/247494.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
point of cloud
laser scanning system
and material handling devices
Opis:
The paper is focusing on the material handling devices operation environment 3D-type presentation based on laser scanning systems and point of cloud data approach. Main attention was fixed at overhead travelling cranes and their operation space zone with determined and random character factor influences the workspace spatial volume. Supervising the transport means workspace get possibility mark out the optimum grade-separated trajectory for transferring cargo in automatic mode. On the base 3D type seans was generated digital model of the plant/laboratory hall, where crane has been installed. In the next step the same laboratory hall and their characteristic points was measure with the help geodetic device and compare with laser scanning data. Other part of the paper is presenting a methodology for 3D type object scanning with use surface segmentation for reduce the number of points given by the industrial scan objects like a hall where an overhead travelling crane is operating. This procedure replace traditional 3D type scanner rotation mode with the planar mode of scanning. In this case the laser beam examines the object only in one direction, it is ideal for scan the workspacefor the transport means with Cartesian operation environment and opens kinematics chain.
Źródło:
Journal of KONES; 2010, 17, 2; 451-458
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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