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    Data Integration by considering spatial diversity in an IR barrier

    TítuloData Integration by considering spatial diversity in an IR barrier
    Tipo de publicaciónConference Paper
    Año de publicación2006
    AutoresGarcia, JJ, Ureña, J, Mazo, M, Losada-Gutiérrez, C, Hernández, Á, Marzziani, CD, Álvarez, FJ
    Idioma de publicaciónEnglish
    Conference NameIEEE Conference on Emerging Technologies and Factory Automation, 2006. ETFA '06.
    Páginas1149 - 1152
    Conference LocationPrague
    Fecha de publicación09/2006
    Numero ISBN0-7803-9758-4
    Palabras clavecase-based reasoning, optical communication, optical links, railway safety, sensor fusion, uncertainty handling

    This work proposes a data fusion technique to validate the detection of objects in railway environments. The system for obstacle detection is based on an infrared emitting barrier and another of receivers placed on opposing side in the railway, establishing different optical links between them. The interruption of one or several links in the sensorial system should produce an alarm. Since the detection is based on the radiation lack in the detectors, channel degradation can produce a similar situation as if there was one obstacle. Since the interruption of the links is the necessary condition, but not sufficient, for the existence of an object, this work proposes the fusion of the sensors information by means of the Dempster-Shafer evidential theory to obtain a certainty value of the existence of objects supposing a risk for the railway.

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