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Meteorological Station with Remote Access
Svoboda, Josef ; Číž, Radim (referee) ; Sysel, Petr (advisor)
This thesis discusses design and realization of air temperature, pressure and relative humidity measuring device, transmission of measured data over internet and their presentation on a web site. First chapter introduces reader into principles of measuring air temperature, pressure and relative humidity and various types of sensors used for measuring . Next, the conception of designed system is described. Designed system must accomplish tasks from reading raw data from the sensor up to thein graphical presentation to the internet user. Second and third chapter describes hardware and software design of air temperature, pressure and relative humidity measuring unit. In next part one can find description of software used to transmit measured data over internet and software for generating web pages which are shown to users. The work is revieved in the final part of this thesis.
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Control of household central heating
Chytka, František ; Fedra, Zbyněk (referee) ; Frýza, Tomáš (advisor)
This thesis deals the design and implementation of system, that control central heating in house. The communications of the units are wireless. The main aim is the choice of wireless modules, the choice of temperature sensor, the design of the PCBs, the construction of all parts and the creation of the software. The test of the curcuits is required for reliability and nuisance in practice. The result is the ready system, that will be installed to house.
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Transmitter and receiver for remote data transmission
Zimčík, Václav ; Toman, Marek (referee) ; Huták, Petr (advisor)
Bachelor thesis is focused on the construction of a multichannel thermometer with wireless data transmission. The device will be able to receive data from multiple transmitters, to which multiple temperature sensors will be connected, to one receiver by wireless transmission at a frequency of 433MHz, and then the device will display this data on a display using selected components and algorithm.
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Very low temperature measurement
Mráz, Dominik ; Harabiš, Vratislav (referee) ; Chmelař, Milan (advisor)
This bachelor thesis is focused on low temperature measurement, respectively on temperature sensors classsification, their accuracy, temperature range and linearity. It deals especially in use of these sensors in cryogenic applications. It contains temperature sensor block diagram, including the description of each block. It also contains schematic designs with description of each design’s function, components and the reason why it’s used. Additionally the realization of the temperature sensor is described and it’s testing.
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Data collection from sensors - confirmation of the temperature chamber
Platko, Peter ; Čala, Martin (referee) ; Šedivá, Soňa (advisor)
Thesis deals with desing and implementation of automated data collection during confirmation of temperature chamber. First chapter describes the confirmation of temperature chamber. Second chapter consist of overview of temperature sensors and description of hardware used in the thesis. Third chapter describes work with selected LabVIEW libraries and architectures. Whole LabVIEW application is described in chapter four. Chapter Fifth chapter serves as user manual and last chapter consist of evaluation of application and ideas for improvements.
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Design of thermal system for accurate temperature stabilization using Peltier thermoelectric modules
Motl, Jakub ; Trčka, Tomáš (referee) ; Macků, Robert (advisor)
This master’s thesis describes design procedure of a heat-regulating system to stabilize its temperature using a Peltier module. The implementation uses eight-bit microcontroller ATmega16 made by company ATMEL for the local and remote control system. The temperature sensors communicate with the microcontroller by serial SPI interface. To display user data, it has a DEM16217SYH type character LCD display with HD44780 control circuit. To collect data from the cooling areas of Peltier module, accurate ADT7320 temperature sensors are used, made by company Analog Devices. The Control of the Peltier module happens in two points of the electrode system and a bistable hysteresis software regulator is used. The first part summarizes the theory, which concerns with the design. Next part concerned with issues of the Peltier module, overview of temperature sensors, description of the microcontroller, the display unit and the used regulator. Last part describes the hardware and software implementation.
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Wireless controlled car model
Závodný, Vilém ; Škorpil, Vladislav (referee) ; Šteffan, Pavel (advisor)
The work deals with the analysis and practical implementation of advanced features in cars, which are responsible for greater passenger comfort and greater security for both passengers and other road users. All the work is solved on a remote-controlled model car, hence the need to deal not only with modern elements in cars, but also wireless data transmission, motor control, reliability of the system and a number of component problems. All these problems that occurred during work and their solutions are described in the following document. The work was based on the introduction of new items, modules and components that can be deployed as sensors, evaluation items, and other electrical and software components for the automotive industry in connection with electrical engineering and telecommuni- cations technology. Further work is focused on efficient wireless control of the vehicle, measuring environmental conditions and processing data so that they can be sent as soon as possible to the host PC or respond to them directly in the microcontroller in case of critical values.
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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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Laboratory thermometer based on Pt100 sensor
Konečný, Jiří ; Murina, Milan (referee) ; Steinbauer, Miloslav (advisor)
This text put mind to questions of touch temperature measurement. Describes the various of electrical temperature sensors, which are divided in accordance with physical principles, on which they work. For each sensor are given its characteristics, such as temperature range, tolerance, advantages and disadvantages, or the measuring circuit. The sensors are described mainly by mathematical equations and polynomials. Their knowledge is needed for the construction of additional circuits or devices for processing information from sensors. In this work is also suggested a completely involvement of digital thermometer, which uses a Pt100. According to this proposal is made a prototype piece.
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