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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Vliv zemědělské mechanizace na zvěř a možnosti jeho snížení

Chalupová, Veronika January 2017 (has links)
The main goal of the thesis was to evaluate the most commonly used steps in the case of prevention of killing and injuring wild animals during agricultural management. The another goal was to choose optimal technique, verify chosen technique (for the prevention of harming wild animals) practice and create a functioning methodology for it afterwards. The used technique was the searching for the wild life by a drone equipped with a thermal camera. There were three flights done with a drone during which the visibility of wild animals via a thermal camera was examinated. We found that the rate of successful identification of the animals is dependent on the drone flight height and on the temperature of scanned area. We also found that monitoring is not applicable when a morning fog is present. Monitoring also showed that optimal daytime for searching for animals is before the sunrise. With drone we mostly managed to detect deer, but also pheasants and hares.
2

Robotizované dojení a jeho působení na dojnice

Ševčík, Jiří January 2016 (has links)
The objective of the dissertation thesis was to evaluate the effects of two different types of milking systems (CMS - conventional milking system vs. AMS - an automatic milking system) on average daily milk yield, on frequency of attending robots, on pre-milking teat preparation procedures and stimulation and milking time, on the teats traumatization of Holstein cows. The experiments were performed in two locations: Žabčice School Farm of Mendel University in Brno and ZEMAX, a. s. in Šitbořice. Data was collected for a period 1st January 2014 to 15th December 2015. Higher average milk yield per day and lower milk yield per milking on the other hand on the farm with AMS were caused by a higher frequency of milking. Cows on farm with CMS were milked twice a day. On the farm with AMS dairy cows were milked in accordance with their own needs. Milking frequency in the AMS was in 2014 2.47, in 2015 2.88 per day. Heat stress has negative impacts on milk production. Effect of heat stress showed more markedly in 2015, which is probably related to the fact that the value of THI greater than 80 lasted longer. The length of pre-milking teat preparation procedures and stimulation various neighborhoods was found in AMS in 2014 from 0:13 min. to 0:16 min., in 2015 from 0:14 min. to 0:19 min. On farm with CMS time not be registered. The length of milking time with CMS in both years was 5:02 min. In AMS was in 2014 from 3:03 minutes to 3:53 min., in 2015 from 3:05 min. to 4:45 minutes. In process of milking machine teat traumatization were smaller when using AMS.
3

Bezdotykové měření povrchových teplot v průběhu soustružení / Contactless measurement of surface temperatures during turning

Merenda, Jiří January 2011 (has links)
The goal of this thesis is the incorporation of the contactless measurement of surface temperature among other methods of temperature measurement. Technical preparation for experimental measuring on the machine-tool. Comparison of influence of cutting conditions on the development of surface temperature of workpiece during the machining process with usage of the camera ThermaCAM CS2000. The economical analysis of the contactless measurement of surface temperature is determined in the last part of this thesis.
4

Využití termovizní techniky při výstupní kontrole napájecích zdrojů / The use of thermovision technology in output control of power supplies

Rejžek, Jan January 2013 (has links)
The aim of the thesis is to clarify the issue of non-contact surface temperature measurement with a focus on the thermal imaging cameras as a modern representative of pyrometers and thermovision technology used in the output control of power supply. To obtain the corresponding results of temperature control, it is necessary to know the exact values of emissivity of the measured materials. The experimental part of this thesis is focused on detection of emissivity of power supply parts.
5

Bezdotykové měření povrchových teplot při obrábění / Contactless measurement of surface temperatures when machining

Šťáva, Radek January 2008 (has links)
Contactless measuring of surface temperature integration in the other measurement methods and their assimilation at evaluation of surface temperature of a semi-finished product bored by various tools is the target of the work. An impassable opening is being bored by these tools. The opening is close to a scanned wall. The semi-finished wall temperatures are being scanned by thermocamera and subsequently compared for every single used tool in this experiment.
6

Bezdotykové měření povrchových teplot ve strojírenství / Contactless measurement of surface temperatures in mechanical engineering

Gorčica, Jakub January 2009 (has links)
This diploma thesis is focused on the theory of contactless measurement of surface temperatures with thermovision camera Flir SC2000 and on the principles of imaging the camera is based on. The tablets and the applications making work with camera easier are processed in the Visual Basic in practical part. The stand for fine taking emissivity is compiled and described, and emissivity of different materials and different milling cutters is taken in this diploma thesis.
7

Bezdotykové měření povrchových teplot v průběhu frézování / Contactless measurement of surface temperatures during milling

Kmenta, Michal January 2011 (has links)
This Master's theses deals with the contactless measurement of surface temperatures and incorporates it among other methods of temperature measurement. For practical experiments were used infrared camera ThermaCAM SC 2000 from producer FLIR. The experiment was focused on the area of manufacturing technology – milling. Have been investigated effects of different cutting conditions on the surface temperature of the machined sample and the results are expressed mainly in the charts.
8

Měření povrchových teplot ve strojírenství / Measurement of surface temperatures in mechanical engineering

Stránský, Marek January 2014 (has links)
This work deals with contact and non-contact methods of surface temperature measurement. The work contains a list and formulations of basic terms and laws of thermodynamics. Furthermore, the work deals with the description and comparison of the properties and use of certain devices for contact and non-contact surface temperature measurement. The experimental part is focused on dependence of the turning speed on the turning knife thermal stress. Subsurface thermocouples, surface thermocouples and thermovision were used for the temperature detection. The subsurface temperatures were afterwards used (as data inputs) for the inverse calculation of surface temperatures. All results obtained were then compared to each other.
9

Tvorba multispektrálních map v mobilní robotice / Multispectral Map Building in Mobile Robotics

Burian, František January 2015 (has links)
The dissertation deals with utilisation of multispectral optical measurement for data fusion that may be used for visual telepresence and indoor/outdoor mapping by heterogeneous mobile robotic system. Optical proximity sensors, thermal imagers, and tricolour cameras are used for the fusion. The described algorithms are optimised to work in real-time and implemented on CASSANDRA robotic system made by our robotic research group.
10

Pracoviště termovize / Workstation with termo camera

Zeman, Martin January 2011 (has links)
This thesis contains an overview of physical principles concerning thermography and infra-red sensing, and a specification of a measuring instrument in a measurement system. Next, there are some particular examples of IR sensing applications. In the second part there is a thermal camera market research including individual manufacturers and models with their attributes and prices. There is a closer view of the thermal camera used for this thesis (Guide EasIR-4). In the end of the thesis there are some drafts of computer vision subject tasks (or practices), including workplace designs and solutions, and three task suggestions for bachelor or diploma theses including solution verifications.

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