TY - CONF T1 - Data Integration by considering spatial diversity in an IR barrier T2 - IEEE Conference on Emerging Technologies and Factory Automation, 2006. ETFA '06. Y1 - 2006 A1 - J.J. Garcia A1 - Ureña, J. A1 - Manuel Mazo A1 - Cristina Losada-Gutiérrez A1 - Álvaro Hernández A1 - Carlos De Marzziani A1 - Fernando J. Álvarez KW - case-based reasoning KW - optical communication KW - optical links KW - railway safety KW - sensor fusion KW - uncertainty handling AB - 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. JF - IEEE Conference on Emerging Technologies and Factory Automation, 2006. ETFA '06. CY - Prague SN - 0-7803-9758-4 UR - http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4178358&isnumber=4178171 ER -