|
| |
|
|
Automation Measurement System
Zálešák, Marek ; Fiedler, Petr (referee) ; Štohl, Radek (advisor)
The follow text describes National Instruments Company's program LabVIEW and bus GPIB. The main part of the text solves the motion and description of software, which was created by help of LabWIEV program for Automation Measurement System. In conclusion of this work are the demonstration and results of control measurements, which were generated by this measuring system.
|
|
|
Communication in Mobile Robotics
Hýbl, Matouš ; Jílek, Tomáš (referee) ; Žalud, Luděk (advisor)
Cílem této práce je poskytnout náhled do způsobů, jakými by se daly vylepšit komunikační spoje používané v mobilní a zejména servisní a záchranářské robotice. Elektromagnetické spektrum, zejména rádiové spektrum, je rozebráno vzhledem k nutnosti určit frekvence na kterých je možné komunikační spoje provozovat. Dále jsou popsány digitální modulace, jelikož mají vliv na chování signálu v přítomnosti rušení. Rovněž jsou popsány možnosti vylepšení komunikačních spojů, a to včetně jejich vhodného použití a možné implementace. Je vyvinut komunikační subsystém založený na routerech MikroTik. Tento komunikační subsystém je schopen retranslace a je vybaven hardwarem potřebným pro implementaci záložního spoje založeného na LTE. Jako testovací robot je oživen robot Orpheus HOPE, který je vybaven novou řídicí deskou, firmwarem, zmíněným komunikačním subsystémem a přejmenován na Orpheus CT. Dále je vyvinut systém pro měření vlastností komunikačních spojů, který je následně ověřen během dvou experimentů. Třetí experiment se zabývá testováním funkce retranslace komunikačního subsystému. Zhodnocení experimentů ukazuje, že zmíněný měřicí systém funguje a že komunikační subsystém je vhodný pro použití v robotech servisní a záchranářské robotiky.
|
|
|
Virtual Measurement System for the Anechoic Chambers
Váško, Ondřej ; Soldán, Josef (referee) ; Dřínovský, Jiří (advisor)
Master thesis examines a selected part of electromagnetic compatibility. In this work, there is theoretically discussed how electromagnetic interference appears and how is spread through free space environment. To eliminate ambient interference signals, the measurements have been performed in anechoic chamber where the undesirable interference signals were suppressed. In the thesis, there are also described parameters of EMI receivers and limits of electromagnetic interference. The description of calculations of the antenna height for finding maximum intensity of electric field strength for standard measurement distance has been made. For proposed transformed measurement distance, calculations of intensity electric field with addition of parameters measuring antenna and object under test were performed. Correction curves for conversion intensity electric field have been obtained as the result.
|
|
|
System for processing of measured physical quantities
Škutová, Miroslava ; Pohl, Lukáš (referee) ; Macho, Tomáš (advisor)
The thesis deals with the overall design of a system for measurement and visualization of physical quantities. Emphasis is placed on the modularity of the system. The work proposes modules for measuring environmental variables, hot water and energy consumption. A program for data collection and storage in a time series database has been developed. The measured physical quantities are displayed in real time in an interactive web interface.
|
|
|
3D Scanning System Proposal for Plastic Parts
Palátová, Zuzana ; Jankových, Róbert (referee) ; Sámelová, Vendula (advisor)
The diploma thesis is focused on monitoring and description of the current state of plastic injection molding production and analysis of methods for measuring these parts. Measurement methods are described and at the same time the measurement issues associated with individual types of meters for specific plastic parts are presented. Based on the analysis of measuring systems, a design of the measuring device in the form of a 3D optical scan is subsequently created, which is optimal for the selected plastic components. When choosing a 3D optical scanner, a demand is created that takes into account the necessary technical parameters required by the corporate environment. A selected proposal is presented at the end of my work.
|
|
|
Vehicle Dynamics Measurement Analysis Using Mathematical Modelling
Blaťák, Ondřej ; Kledus, Robert (referee) ; Mazůrek, Ivan (referee) ; Kaplan, Zdeněk (advisor)
This doctoral thesis is focused in connection of measurement with a model in this meaning. Only relative easier measurable variables are measured on a vehicle and these variables make model inputs. This process can be improved by using dynamic filtering principles, where measured variables are used not only as model inputs, but they are used for the correction of a model motion too. We can obtain an optimal estimate of vehicle real behaviour during a manoeuvre with using this method. Linear discrete Kalman filter (dynamic filter) was used for the connection of the measurement with the mathematic model with regard to chosen model (planar linear single track model). The main task of Kalman filter is try to estimate the state of the discrete time depending process that is determined by the linear stochastic difference equation. Effective measurement system (based on CompactRIO unit) was built within the scope of this PhD thesis. This system is able to measure simultaneously a lot of quantities on the experimental vehicle. Velocity components (measured through optical correlative sensor Correvit), yaw velocity (measured through vibrating gyroscope), lateral acceleration, distance component (measured through MicrosatGPS system) are the basic measured parameters. Big attention was paid to obtain other important inputs of the mathematic model such centre of gravity position, moment of inertia, steering ratio etc. The last part of the thesis is oriented on the real connection of the measurement with the mathematic model. Formula Ford 1600 was used as the experimental car. The driving manoeuvre was arranged according to the norm ISO/WD 3888/2. Three versions of the Kalman filter were realised, which differs in the measured variables used for the mathematical model motion correction. Other possibilities, how to improve the process of state variables estimation eventually how to effective use this algorithm for vehicle parameters identification (cornering stiffness of the tires for example), are sketched in the end of the thesis.
|
|
|
Electronic Unit for Data Acquisition of Vehicle Dynamic
Machač, Jakub ; Rasch, František (referee) ; Svída, David (advisor)
The diploma thesis is focused on design of an electronic unit for data acquisition of vehicle dynamics. It deals with not only design, but also with the testing and comparing to the other common used electronic units. It also includes proposition for choosing the measured quantities as well as their brief features and description of common used sensors to measure them.
|
|
| |
|
|
3D Scanning System Proposal for Plastic Parts
Palátová, Zuzana ; Jankových, Róbert (referee) ; Sámelová, Vendula (advisor)
The diploma thesis is focused on monitoring and description of the current state of plastic injection molding production and analysis of methods for measuring these parts. Measurement methods are described and at the same time the measurement issues associated with individual types of meters for specific plastic parts are presented. Based on the analysis of measuring systems, a design of the measuring device in the form of a 3D optical scan is subsequently created, which is optimal for the selected plastic components. When choosing a 3D optical scanner, a demand is created that takes into account the necessary technical parameters required by the corporate environment. A selected proposal is presented at the end of my work.
|
guest ::
