20.500.12556/RUL-182872 Napovedovanje trkov med vlaki in predori Predicting Collisions Between Trains and Tunnels V magistrskem delu predstavljamo metodo za zaznavanje in preprečevanje trkov med vlakom in predorom. Metoda združuje obdelavo oblaka točk s parametričnim modeliranjem gibanja vagona. Predor razdelimo na horizontalne plasti, stene aproksimiramo z B-zlepki, gibanje vagona pa simuliramo vzdolž kontrolnih točk z določanjem položaja vagona na podlagi medosne razdalje. Za zaznavanje trkov na vsaki višini vzorčimo šest kritičnih točk in izračunamo razdalje do geometrije predora. Optimizacijski postopek določi največji dopustni model vagona. Sistem omogoča prileganje različnim oblikam tovora in interaktivno 3D vizualizacijo. Glavni prispevki magistrske naloge so detektor trkov, ki upošteva geometrijo predora, postopek za izpeljavo največjega varnega modela vagona ter orodji za prileganje tovora in za vizualizacijo. In this master's thesis, a method for detecting and preventing collisions between a train and a tunnel is presented. The approach combines point cloud processing with parametric modelling of wagon motion. The tunnel is divided into horizontal layers, the walls are approximated using B-splines, and wagon motion is simulated along control points by determining the wagon's position based on its wheelbase. To detect collisions, six critical points are sampled at each height, and their distances to the tunnel geometry are calculated. An optimisation procedure determines the largest permissible wagon model. The system supports fitting various cargo shapes and provides interactive 3D visualisation. The main contributions are a collision detector that accounts for tunnel geometry, a procedure for deriving the largest safe wagon model, and two tools: one for cargo fitting and one for visualisation. računalniška geometrija železniški promet zaznavanje trkov oblaki točk B-zlepki brušenje vagonov prileganje tovora 3D vizualizacija optimizacija computational geometry rail transport collision detection point clouds B-splines wagon shaving cargo fitting 3D visualization optimization true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2026-05-26 13:45:03 2026-05-26 13:45:13 2026-06-10 06:11:25 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 38413 281047299 Stare_Matic_-_Napovedovanje_trkov_med_vlaki_in_predori.pdf Stare_Matic_-_Napovedovanje_trkov_med_vlaki_in_predori.pdf 1 F23DE60A4DF7BEEBF2CE4D9B3CF03E1D 8dfc3400edc2e60967f6a361155905dec25b1ddd548fbe3417bc3082ac6965df 05377534-58f8-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=234502 Fakulteta za računalništvo in informatiko 0 0 0