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Realization of digital oscilloscope
Kulig, Tomáš ; Michal, Vratislav (referee) ; Frýza, Tomáš (advisor)
This work is focused to digital handheld oscilloscope. Input circuits are solved by analog devices. DSP (Texas Instruments company) will be used for fast processing of signals from output A/D convertors. LCD display with touch screen is used for interaction with user. The result will be fully functional device. It would measure voltage waveforms within the scope from tens mV to tens V with transmission bandwith from direct-current signal up to tens of MHz
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Industrial state indicator
Zamrzla, Martin ; Štohl, Radek (referee) ; Bradáč, Zdeněk (advisor)
This thesis deals with study of materials needed for proposing and implementation of the industry state indicator. In the theoretical part there are describe all used components including calculations. Then there is a description of the communication interface used on the indicator. The theoretical part is then followed by a description of MODBUS protocol. The practical part is divided into a few sections. First one decribes the implementation itself together with the idicator activation. Second one describes the programme equipment of microcotroller. The conclusion is about description of the application testing.
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DDS Based High-frequency circuit analyzer
Priškin, Jiří ; Brno), Tomáš Mádr (DCOM (referee) ; Šebesta, Jiří (advisor)
At first this thesis is dealing with the basic principles of network analyzers and afterwards goes to propose conception of a polyscope, as a special type of the scalar network analyzer, designed for magnitude frequency response measurement of two-port devices. As a result of this part of the thesis is the polyscope's block circuit diagram and also selection of key integrated circuits for sweep generator, logarithmic detector and control circuits. As the following part of the thesis is a design of the all basic analyzer's circuits resulting in their schematics diagrams and printed circuit boards, do assembly of all modules and mechanical construction of the instrument and look of the front panel. Some of the tasks is implementation of the firmware and personal computer application able to download measured data from the circuit analyzer via USB and generate chart in Microsoft Office Excel book.
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Control and signalling unit for sport match
Bohutínský, Jaroslav ; Chmelař, Milan (referee) ; Kolouch, Jaromír (advisor)
The aim of this study is a design of a control and signalling unit for sport meetings controlled by a microcontroller. The unit should display the time, the state of the match, eventually another data important for a course of the match. It should be fitted by an audible alarm of the end of the match. A touch control panel with a liquid crystal display serves as input of control data. The unit operates in a countdown mode, it is possible anytime to start or to stop the time by pressing the button. The equipment is mains-operated and backed up by an external battery. In the case of a power failure, it is switched over to the battery. A representation of the time, the state of the match and other data is done by LED displays. The unit allows a connection to PC.
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Wireless Messaging System
Musil, Tomáš ; Dlouhý, Jiří (referee) ; Sekora, Jiří (advisor)
The aim of thesis is a design of wireless pager, that can be used for short text messages transmission from the sender to a particular recipient. The report is sent from a computer via serial port. The application is based on microcontrollers, which provide data protection, evaluation and display data on the display of the receiver. The wireless transmission is effected via the RF modules, that are powered from batteries.
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Design and implementation of control module with display
Bubák, Martin ; Lamberský, Vojtěch (referee) ; Grepl, Robert (advisor)
This bachelor’s thesis deals with the design of an operating module with the display controlled by a microcontroller. At the beginning of the thesis, research of various types of displays and the description of communication of the most common LCD module controllers with MPU is given. In the next part, selection of a suitable display is made. Next, connection of LCD graphic module with controller T6936C to dSPACE and the microcontroller and its programing in Matlab – Simulink is described.
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Microsolder controlled by microprocessor
Stavělík, J.
The aim of this thesis is to design microsolder control, which can hold constant temperature of solder tip and description of hardware and firmware implementation. This solution allows the same function like classical microsolders but you can connect modern solder tip with high heat capacity. Other requirements are: switching frequency should be above the audible frequency, rotary encoder for temperature adjust, LCD display.
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