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Computer modelling of the movement of agricultural machinery during field
FILIP, Martin
This dissertation deals with the problem of optimizing the number of hauling trailers and loaders in the handling, collection and transport of bales of fodder or straw from the land to the storage site in order to achieve the lowest possible consumption of human labour. The automated decision-making process allows the optimum number of removal trailers and loaders to be selected s that there is no unnecessary downtime for the handling equipment while waiting for the transport equipment or, conversely, no lost time for the removal trailers due to insufficient loader capacity. The basic function of the optimization program is to process a Google Maps image of a real plot of land, detect its boundaries and, on the basis of estimates of forage or straw yields, estimate the approximate distribution of predefined bale sizes and determine the centroids, i.e. the locations where the hauler should be positioned when loading.The centroid is also the point from which the shortest travel distances for the loader are obtained. The centroids are assigned successively to the packages with the lowest distance until the group is full. This is the condition where the number of bales in the group corresponds to the transport capacity of the conveyor. Another function of the optimization algorithm is to schedule the travel routes in the centroid and based on the input value of the average speed of the loader, the time required for the travel of this machine is calculated. To the total working time of the loader is added the time required for driving from the storage area of the machine to the plot, as well as the time required for driving from the point of entry to the working area to the centroid, and the driving time from the processed centroid to the other centroids, including the driving time from the harvested areas back to the place where the loader will be parked. In addition, the value of the time required to lift all bales in the centroids and place them on the conveyor and the downtime of the manipulator are added to the loader's travel time to obtain the loader's total time. The working time of the removal trains is calculated from the distance of the route (multiplied by the average speed of these machines) from the storage location of the machines to the centroid, the loading time and the time required to travel to the storage location of the bales, including the time required to remove the bales from the removal trains. The time of the loaders and the removal trains is evaluated simultaneously, in synchronisation, and it is calculated whether there are any lost times, which are added successively to the working times. The optimization program sequentially calculates the different variants for (n) loaders, (n) transfer sets, evaluates which variant consumes the least time and is therefore optimal in terms of the lowest time consumption.
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Measurement and simulation of lenses and concentrators optical parameters
Filip, Martin ; Hudcová, Lucie (referee) ; Křivák, Petr (advisor)
Optics is branch, whis is deal with generation, propagating and detection of optical radiation. There is big boom of optical links in last years, thanks to originate of laser, fiber cable with low attenuation and production of semiconductor optical components. Besides fiber cables there are used also free space optics links. These links are used especially for build fast computer network between buildings, whose distance is up to 1 km. We need to know properties of used optical elements for creation this link so that we get the biggest possible gaim on a reciever detector. We are focusing on measurement of optical properities lenses, which are used for forming optical beam in free space optics link.
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Carrier Frequency Generator for Portable Radar Signal Simulator
Filip, Martin ; Raida, Zbyněk (referee) ; Šebesta, Jiří (advisor)
This thesis deals with the analysis and solution source for carrier frequency generator for portable radar signal simulator. This simulator is tunable in the frequency range from 2 GHz to 18 GHz and as it´s frequency source generator is used YIG oscillator for its very high frequency realignment. Simulator provides output power up to 1W on the SMA connector which can be connect to internal antenna by using jumper cable. To achieve this output power will be used by semiconductor amplifier.
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Measurement and simulation of lenses and concentrators optical parameters
Filip, Martin ; Hudcová, Lucie (referee) ; Křivák, Petr (advisor)
Optics is branch, whis is deal with generation, propagating and detection of optical radiation. There is big boom of optical links in last years, thanks to originate of laser, fiber cable with low attenuation and production of semiconductor optical components. Besides fiber cables there are used also free space optics links. These links are used especially for build fast computer network between buildings, whose distance is up to 1 km. We need to know properties of used optical elements for creation this link so that we get the biggest possible gaim on a reciever detector. We are focusing on measurement of optical properities lenses, which are used for forming optical beam in free space optics link.
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Carrier Frequency Generator for Portable Radar Signal Simulator
Filip, Martin ; Raida, Zbyněk (referee) ; Šebesta, Jiří (advisor)
This thesis deals with the analysis and solution source for carrier frequency generator for portable radar signal simulator. This simulator is tunable in the frequency range from 2 GHz to 18 GHz and as it´s frequency source generator is used YIG oscillator for its very high frequency realignment. Simulator provides output power up to 1W on the SMA connector which can be connect to internal antenna by using jumper cable. To achieve this output power will be used by semiconductor amplifier.
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The Russian-Czech interlanguage transfer issues in pursuance of professional economic language teaching in the University of Economics in Prague
Filip, Martin ; Hlavičková, Vlasta (advisor) ; Höppnerová, Věra (referee) ; Hříbková, Radka (referee)
An essential part of the prerequisite for studying of students and employment process of graduates of UEO is the knowledge of professional economic language. The aim of this dissertation is to contribute to the quality and efficiency of teaching the professional Czech language for foreign students in the University of Economics with a focus on Russian-speaking students. Based on theoretical studies the confirmation of dissertation hypothesis and the achievement of work objects describe and give reasons how and how much the Russian language affects the morphology and lexical linguistic aspects in the case of Russian-speaking students during the process of learning the professional Czech language. The research part of the work with the help of the questionnaire responses analysis confirms the fact that the interlanguage influence in the case of Czech professional language is very strong and is greatly manifested in both positive and negative ways. It was proved that important factors in education are: the origin of foreign students, their level of knowledge of Russian language and teachers' level of Russian language knowledge. The research part is followed by didactic recommendations and proposals of specific methodological procedures and exercises for the most consistent limiting of the negative effects of the Russian language while learning the Czech professional language at the University of Economics in Prague.
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Marketing communication in tourism
Kashkina, Katsiaryna ; Horová, Olga (advisor) ; Filip, Martin (referee)
Subject of this bachelor paperwork (study and research) is a firm "1000 Turov" and its activities from the perspective of policy-market sales of tourist services. The aim is to find ways of ensuring and improving product sales company in the tourism, particularly the analysis of the possible marketing communication strategy.
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