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Uninterruptible power supply with management system utilizing I2C bus for medical devices
Daněček, Vít ; Hanák, Pavel (referee) ; Šilhavý, Pavel (advisor)
Object my master’s thesis is the design a Medical device uninterruptible power supply with managment system utilizing I2C bus. Norm EN 61000-3-2 define electric parameters for medical device power supply. In case of power supply for medial equipment is expressive accent on increased electric strength. This power supply have usually primary and secondary power circuit. Primary power circuit form line accumulator, which supplies needed output to the load and recharge reserve battery. Secondary is formed battery-pack, which serve as back-up power supply at drop-out prime circle. They have a minimum weight, small proportions, large overall effectivity also charging battery-pack and monitoring battery-pack charging condition. Result whole those master’s thesis is design Medical device uninterruptible power supply with managment system utilizing I2C bus and realization board layout. Resulting characteristics designed supply unit are: Output voltages are 5V/ 3 A , 12V/ 1,5 A and -12V/ 0,1 A. Managment support information about: Line adapter/ battery pack switch, battery-pack charging condition and actuall tempera-ture battery-pack.
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Digital secondary clock
Hortvík, Martin ; Mašek, Petr (referee) ; Marada, Tomáš (advisor)
The aim of this thesis is to design and implement control electronics for digital secondary clocks. The first part is focused on familiarization with the issue of the use of secondary clocks. Subsequently, the work deals with the design of electronics for generating minute pulses. The first part of the proposal is to ensure the correct voltage size and polarity of pulse. The exact timing pulses are provided by a pair of control circuits, Atmega8 microcontroller and RTC. The last part describes the procedure of realization of electronics by making schema, design and manufacture PCB, circuit revive and the implementation of the module into case.
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Design of control units for semiautomous convoy
Kolomazník, Vojtěch ; Růžička, Michal (referee) ; Mašek, Petr (advisor)
This bachelor thesis deals with a design of a low level control units for a semiautonomous convoy. A crucial purpose of control units is convoy vehicles control, where the designed unit will be able to control of steering and speed actuators, where PWM signals were used for actuators control. These are based on a high level system commands. Control unit is able to send ultrasonic sonar and battery level data to the high level control unit. The communication between high and low level control systems provides an USART communication interface.
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The detection of the rotation direction of a fuel pump
Matějásko, Michal ; Vejlupek, Josef (referee) ; Grepl, Robert (advisor)
This thesis describes the design and commissioning of a device for detection of the rotation direction of a DC fuel pump. The rotation direction is calculated on the basis of change of magnetic field during its movement. Detection of the rotation direction will be applied in manufacture at possible supply cables confusion testing. Thesis is carried out in cooperation with industrial partner.
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Control unit of four - legged robot based on microcontroller PIC
Youssef, Daniel ; Lamberský, Vojtěch (referee) ; Grepl, Robert (advisor)
This Bachelor thesis develops “Jaromir“, a four legged robot by adding appropriate sensors to it and designing a new control unit that is able to receive and process the acquired data by the sensors. The functionality of the control unit is tested by implementing a number of simple movements. This testing demonstrates the possibility of using this unit for the developing and testing of complex movement algorithms.
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2D triangulation of heat radiation sources
Zsemle, Radek ; Zuth, Daniel (referee) ; Matoušek, Radomil (advisor)
The aim of this thesis is the creation of intelligent sensor units (Intelligent Sensor Unit ISU) able to identify the source of heat radiation can be distinguished from background. Single System (slave) will communicate via the I2C bus to the central processing unit (Master), which will serve as the setting ISU (slave), so for their own heat source position calculation and communication with staff. The whole system is based on the ISU uP ATmega128. Sensory part will be able to scan the perimeter of the plane 0 ° to 180 °, and distinguished theoretical temperature gradient object-background 2 ° C. A given application can be used for the monitoring of technology and living objects.
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Design and implementation of complementary sensory system for experimental car
Šimurda, Matěj ; Krejčí, Petr (referee) ; Grepl, Robert (advisor)
This thesis deals with design and implementation of complementary sensory system for experimental car. It deals with temperature sensors, sensors of dumper position and collision avoidance sensors. The first part is focused on background research of temperature sensors and distance sensors. The individual parts of sensory system are described in the following chapters. All chapters contain theoretical design of system as well as final implementation and summary. The description of model for simulating heat transmission in electromotor is described in the chapter of temperature sensory system as well as preliminary measurement of heating-up the winding and shield for establishing the unknown constants in model. The making of functional code to reach the successful communication between the sensor and dsPIC microcontroller via I2C interface is also described. This interface was used for all sensors of the system. The flex sensors are used in the chapter of dumper position sensors. Variable voltage on it is converted by ADC into discrete signal and sent to the control unit. The cheap IR distance sensors are used in the chapter of collision avoidance sensors. Output voltage is also converted by ADC.
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Design and implementation of modules for teaching and developing applications with microcontroller Atmel AVR
LANGMAJER, Miroslav
This thesis is based on the design and production of teaching kits with expansion modules which are based on the Atmel AVR microcontroller. Kit consists of a plate containing processes and basic power modules directly on the board and expansion modules "SIMAČ". "SIMAČ" modules are virtual elements that simulate the real elements and they are commonly used in industrial automation. Because of their cost they are integrated in extension kit as programmable modules. It also contains basic theoretical information about working with ATMEL AVR microcontrollers. Expansion modules with module development board and disc which will be loaded all the schemes, programs and technical documentation for individual districts will be attached to the thesis.
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Realization of various serial communication with microcontroller
LANGMAJER, Miroslav
This task deal with suggestion and realization of microcontroller communicatin with PC and serial bus.Microcontroller must be set to be able to add number of device communicating on relevate bus.Communication between PC and microcontroller is realized by port RS-232.The part of task describe microprocessor part 8051,buses I2C, and 1-wire. The other part of task is programming of microprocessor to communicate and discribe software Terminal 1,9b and his communication with buses.
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Connection measuring buses to the PC
KUBEŠ, Miroslav
This thesis concerns description of structure and explanation of data bus I2C and 1-Wire communication, their connection to user´s PC through RS232 connector and sequential software development among user´s PC and data buses in program language Visual Basic 6.0. These will be added to this thesis on compact disk.
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