20.500.12556/RUL-82782 Razvoj naprave za zaznavanje in obveščanje o posegih v gozdovih Development of a device for detection and signalization of wood cutting in forest Magistrsko delo je nastalo kot zaključek podiplomskega magistrskega študija na Fakulteti za elektrotehniko Univerze v Ljubljani. Idejo za razvoj naprave, ki bi s spremljanjem zvočnega dogajanja v gozdu opozarjala na nedovoljene posege, je dal moj mentor prof. dr. Dejan Križaj že med podiplomskim študijem. Naprava bi v komercialni izvedbi tako omogočila, da lahko lastnik gozdne parcele ukrepa takoj ob povzročeni škodi v gozdu, kar bi precej poenostavilo odkrivanje storilcev in izterjavo ²kode. V uvodnih poglavjih je podan kratek pregled razvoja obdelave zvočnih signalov in uporabljene metode za prepoznavo zvoka iz okolice. Sledi glavni del, kjer sta opisana električno vezje naprave in razvoj pripadajoče programske opreme tako v Matlab okolju kot v C++ jeziku za DSP procesor. Zaključni del naloge predstavi rezultate testiranja v okolju Matlab, v laboratorijskem okolju s predvajanjem zvočnih vzorcev prek zvočnika in v naravnem okolju. V zaključku so predlagane potrebne izboljšave in spremembe za komercialno uporabo naprave. This master's thesis is a result of completion of post-graduate master's degree studies at the Faculty of Electrical Engineering, at University of Ljubljana. The idea to develop a device that would monitor audio events in the forest and warn in case of illegal activities, gave my mentor prof. dr. Dejan Kriºaj, during the post-graduate studies. The device in its commercial form enables owner to take neccesary immediate actions upon suspicious activities in forest, which would simplify the detection of oenders. The introductory chapter gives a brief overview of the development of digital signal processing and the methods for environment sound recognition. Next chapters describe electric circuit device and related software development in both the Matlab environment as in C++ language for DSP processor. The nal part of the thesis presents the results of testing, in Matlab in a laboratory environment where the audio was played through the speaker and in a natural environment. Finally improvements and changes needed before the marketing of the device are proposed. digitalna obdelava signalov mel frekvenčne kepstralne komponente vektorska kvantizacija prepoznava zvokov iz okolice gozd digital signal processing mel frequency cepstral coecients vector quantization environment sound recognition forest true false false Slovenski jezik Angleški jezik Magistrsko delo 2016-05-23 09:54:44 2016-05-23 09:54:45 2022-08-01 22:40:03 0000-00-00 00:00:00 2016 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 33324 Mocnik_Ciril_-_Razvoj_naprave_za_zaznavanje_in_obvescanje_o_posegih_v_gozdovih.pdf Mocnik_Ciril_-_Razvoj_naprave_za_zaznavanje_in_obvescanje_o_posegih_v_gozdovih.pdf 1 03C006E0F4D1A3DA003DFBFE4EFFF6B7 203a930e800385b49201042708a4a37f9a04f5656bf5bae6f50538122baaec6a 72ff719f-a1ad-11eb-a523-00155dcfd717 20.500.12556/rul/e1ae9e1a-46df-407c-830f-772a80aef540 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=82999 Fakulteta za elektrotehniko 0 0 0