In this work an intelligent infrastructure is shown, which allows to detect obstacles in railways, based on optical emitters. The sensorial system is based on a barrier of emitters and another of receivers, placed each one of them at one side of the railway. Apart from the disposition of the sensorial system, is also presented a codification method of the emission in order to detect the reception or the non-reception of transmissions between an emitter and a receiver. The presented method is based on a signal codification using complementary sequence pairs, suitably adapted for their simultaneous emission through the transmission channel. A high reliability under adverse conditions is achieved with the developed system, being possible to detect the presence of obstacles, and to inform about their situation.


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    Title :

    Low cost obstacle detection for smart railway infrastructures


    Contributors:
    Garcia, J.J. (author) / Hernandez, A. (author) / Urena, J. (author) / Garcia, J.C. (author) / Mazo, M. (author) / Lazaro, J.L. (author) / Perez, M.C. (author) / Alvarez, F. (author)


    Publication date :

    2004-01-01


    Size :

    711695 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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