20.500.12556/RUL-187575 MERJENJE HITROSTI NA MODELNIH ŽELEZNICAH SPEED MEASUREMENT ON MODEL RAILWAYS Naloga se ukvarja z načrtovanjem in izdelavo merilno-krmilnega sistema hitrosti lokomotiv za analogno krmiljene modelne železnice. Opisani in obravnavani so štirje različni pristopi k merjenju hitrosti: merjenje z zaznavo spremembe napetosti, merjenje s parom fotoprekinjevalnikov (ang. photo interrupter), merjenje s Hallovima senzorjema in merjenje s sonarjem. Izdelana in predstavljena so prototipna vezja merilnih sistemov ter programska oprema, ki se izvaja na mikrokrmilniku. Meritve so izvedene na štirih različnih modelih lokomotiv v merilu H0 1:87. Izdelan merilno-krmilni sistem z izvajanjem in združevanjem zajetih meritev določi hitrostno karakteristiko v odvisnosti od krmilne napetosti za izbrani model. Na podlagi meritev je bil za najbolj zanesljiv način merjenja brez posegov na samih modelih izbran način merjenja hitrosti s parom fotoprekinjevalnikov. Sledil mu je sistem merjenja s Hallovim senzorjem, a je za delovanje potreboval preveč dodelav. Sistema merjenja hitrosti s sonarjem in spremembo zaznave napetosti sta se zaradi odvisnosti od lastnosti modelov izkazala za nezanesljiva. The research deals with the design and construction of a locomotive speed measurement and control system for analog-controlled model railways. Four different approaches to speed measurement are described and discussed: measurement by detecting voltage changes, measurement with a pair of photo interrupters, measurement with Hall effect sensors and measurement with sonar. Prototype circuits of measurement systems and software implemented on a microcontroller are produced and presented. Measurements are performed on four different locomotive models in H0 1:87 scale. The produced measurement and control system determines the speed characteristic depending on the control voltage for the selected model by performing and combining the captured measurements. Based on results, the most reliable method of measurement without intervention on the models themselves was chosen as the method of measurement with a pair of photo interrupters. It was followed by the method of measurement with Hall effect sensors, although requiring an additional wagon. Methods of measurement by sonar and by detecting voltage changes proved to be unreliable due to their dependance on the properties of the models. modelna železnica hitrost napetostno-hitrostna karakteristika model railway speed voltage-speed characteristic true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-09-11 12:10:01 2026-09-11 12:10:04 2026-09-14 03:41:16 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 62885 Marinko_Luka_-_MERJENJE_HITROSTI_NA_MODELNIH_ZELEZNICAH.pdf Marinko_Luka_-_MERJENJE_HITROSTI_NA_MODELNIH_ZELEZNICAH.pdf 1 731B3E4D4B10DE3C64EB2B1A54B97ACE 6dd5c988f38152e707d4363d9012a61d1877fed0e8d9ea9f37bfffd28f71c0c1 ee8df60c-adc8-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=247252 Fakulteta za elektrotehniko 0 0 0