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Load bearing reinforced concrete structure of flat building
Ruber, Lukáš ; Kadlec, Jaroslav (referee) ; Girgle, František (advisor)
The aim of bachelor thesis was to design and assess reinforced concrete floor slab on a typical floor of flat building, which has been specifically selected second floor. Slab is locally supported by restraint concrete columns without collumns head. On the short sides is also reinforced concrete walls. These walls also serves as reinforcing. To calculate the internal forces were used calculation software RFEM 5. It was controled by method of summary moments with subsequent comparation of results. The Slab was rainforced by flexural longitudinal load-bearing reinforcement and around columns is placed shear reinforcement against slab extrusion by column. Part of this work is also drawing documentation of proposed solution.
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Position navigation system with GSM interface
Pristach, Marián ; Khatib, Nabhan (referee) ; Kadlec, Jaroslav (advisor)
The objective of the diploma thesis is to design a device for positioning of mobile devices using GPS satellites. When coordinates are acquired they can be sent via the GSM network to a user's cell phone or to an SQL server. A web interface has been designed to access the stored data and to show the current device position and the history. This position datalogging system can be used for monitoring vehicles as well as a security system for cars.
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Reinforced concrete load bearing structure of administration building
Pražan, Jiří ; Kadlec, Jaroslav (referee) ; Girgle, František (advisor)
This bachelor thesis deals with the static solution of the loadbearing reinforced concrete structure of the administrative three-storey building. Specifically, the most loaded inner column on the ground floor and the point-supported, two way, reinforced concrete floor slab above the ground floor with a circumferential shear beam are solved. The structure is designed and checked for the ultimate limit state according to standard ČSN EN 1992-1-1 ed2, including the Z1 amendment from May 2016.
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DC motor controller module
Duz, Aleksei ; Kadlec, Jaroslav (referee) ; Kuchta, Radek (advisor)
This thesis focuses on the design and creation of control unit for DC motors drives. A principle on which the DC motor is based, a method of its control and a possibility to obtain current information about the position are briefly described in this work. After that, the different types of buses for communication with a superior system and justification of the chosen one, are presented. In the next section, there is a special emphasis on creation of the suitable driver model and a design of the elecrical schematic and PCB. The end of the thesis contains a description of commission a PCB and testing the main functions.
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GPS car position system
Talanda, Oldřich ; Biolek, Dalibor (referee) ; Kadlec, Jaroslav (advisor)
This paper focuses on one of the possible ways of protecting a car as well as offering a possibility of easy location detection anywhere in the Czech Republic.The aim of the paper is to suggest and practically realize a device, that would meet these requirements by utilizing the GPS and GSM technologies. The first part of the paper is focused on laying out the problem. The next part tries to familiarize one with the problems of GPS navigation, work with microcontrollers and data transfer utilizing the GSM technology. The third part deals with program equipment of the microcontroller and the governing communication system.
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Converter card for precise control of a laser diode
Čožík, Ondřej ; Kadlec, Jaroslav (referee) ; Fiedler, Petr (advisor)
The diploma thesis deals with design of the converter card for the precise control of a laser diode. At first, there are described the principles of the laser diode, photodiode and basic functions of optical fiber sensors. Following chapter deals with description of developed converter card. In the diploma thesis are discussed all function blocks of the converter card and they are explained in detail. In the thesis are subsequently tested all problem parts of the converter card for the precise control of the laser diode, such as fast switching of the current flowing through the laser diode and design of the connection for evaluating of current pulse from the sensing photodiode. An integral part of thesis is a description of created printed circuit board and there are described all used layers and devices’ layout on the PCB. Final part of the diploma thesis deals with firmware for the microcontroller, which was made for testing of all function blocks of the converter card for the precise control of a laser diode. At the same time was developed software for PC, which communicates with the converter card via universal serial bus (USB).
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Microposition control device
Kokeš, Ondřej ; Bajer, Arnošt (referee) ; Kadlec, Jaroslav (advisor)
Presented thesis analyses a function of the particular type of the nanopositioner with aim to suggest and construct an electronic device suitable for control of the nanopositioner slider. In presented material there is a description of the control signals and possibility of their generating in the respect of slider movement accuracy. The main goal of the thesis is to describe electronic units ranging from power supply, control processor unit part to end part that directly joint nanopositioner. There is also programme equipment for microcontroller and computer, communication description, movement measuring and calibration and draft for the close-up of the control loop for additional increase of the movement accuracy.
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Precise adjustable power suplly
Pawlas, Andrzej ; Magát, Martin (referee) ; Kadlec, Jaroslav (advisor)
This bachelor´s thesis deals with the proposing precise switching power supply. This switching power supply works with a maximum of 99 % duty cycle. Input voltage is 12 V and output can be set in the range of 1.2 V - 11.9 V. Current can be a source of burden 0 A - 20 A. The entire power supply is controlled by microcontroller. While addressing the proposal switching power supply have been developed five prototypes. Last prototype works well, but the output appeared significant interference.
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The construction of wireless alarm system
Brudný, Tomáš ; Kadlec, Jaroslav (referee) ; Šteffan, Pavel (advisor)
The object of this project was to develop a security device, which would consist of several detectors and one central unit. The central unit is communicating with authorized detectors wire-less with using the high-frequency modules IQRF from Microrisc. Central unit is thanks USB interface, small size and by using PC easy configurable. Designed detectors are provided with a Li-ion accumulator, which can by charge by integrated solar cells. The detector also includes input interface, which can by use to expand the detector of another kind of sensing element.
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