20.500.12556/RUL-130069 Razvoj prilagodljivega sistema za krivljenje pločevine Development of adaptable system for sheet metal bending Magistrska naloga zajema pretvorbo naprave za upogibanje pločevinskih trakov v distribuiran sistem računalniškega vida, za demonstrativne namene. Sama naprava izhaja iz predhodnega zaključnega dela, kjer je bila ustvarjena konstrukcijska rešitev, vendar je ta bila brez krmilne logike, zato je bila v sklopu tega dela povezana še z mikrokrmilnikom Ardiuno in mikroračunalnikom Raspberry Pi v celosten fleksibilen sistem za upogibanje pločevine. Sistem omogoča fleksibilno geometrijo za izvedbo upogibnega preizkusa, poleg tega z uporabo kamere lahko sistem deluje v zaprto-zančnem načinu delovanja, ter je tako dosežen sistem računalniškega vida. Preko raznih algoritmov, ki so predstavljeni v tem delu, se slika ustrezno razgradi in predela tako, da se iz slike lahko izlušči trenutni kot upogiba pločevine. Vse skupaj povezuje uporabniku prijazen in intuitiven grafični vmesnik, ki omogoča odzivno in ustrezno krmiljenje naprave ter enostavno razbiranje povratnih informacij. Preko preliminarnih rezultatov je bila ugotovljena točnost sistema pod 1% za meritve kota, kar zadovoljuje za demonstrativne namene naprave. Naprava omogoča tudi različne načine izvedbe upogibnega preizkusa, preko premikajočih se podpor, ki ostajajo še neraziskani. This master thesis encompasses the transformation of the bending process device into a distributen computer vision system for the bending of thin metal sheets. The device was completed as part of a different master thesis, however it was only the construction part, without any governing logic behind it. As part of this work, the device was connected with the microcontroller Arduino Mega and the microcomputer Raspberry Pi into a flexible metal sheet bending system. The system offers flexible geometry in the form of an independently moving punch and supports. The system was also upgraded to a computer vision system, with the help of a camera, to track the current bending angle of the sheet metal, which allows in to work as a closed loop system. The bending angle is calculated by using the different digital image processing alogrithms described in this work, to decompose and process the images and obtain the bending angle. The user experince is further augmented through the use of a graphical user interface which enables a intuitive user experince to controle the sheet bending device. Through preliminary results, a below 1% accuracy of the bending angle measurements was achieved, which is in line with the application needs. The system also offers different bending process operations, which remain unresearched. fleksibilni obdelovalni sistemi računalniški vid Raspberry Pi Arduino upogibni preizkus Python flexible production systems computer vision Raspberry Pi Arduino bending process Python true false false [M. Kuštra] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2021-09-10 08:32:42 2021-09-10 08:32:43 2023-11-08 12:54:06 0000-00-00 00:00:00 2021 0 Ljubljana 0 XXVI, 80 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 672.4:620.174:004.43(043.2) 233479 78425347 10247.pdf 10247.pdf 1 BED0C0AE12314DBE65CAC07D89275A50 9a21db246e60b2f232ddbb05485bf2c572a98a7d93c967ddfb0ff824d819d286 a823aebd-1200-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=147122 Fakulteta za strojništvo 0 0 0