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Management and Automation of Enterprise Facility Heating System
Hartmann, Jiří ; Bardonek, Petr (referee) ; Šimek, Václav (advisor)
The aim of this work is to create a unified control and supervision system, SCADA, for controlling the heating and cooling of the company. The system is controlled by UniPi PLC units. Node-RED is used as control software. The user interface is created by an extension "dashboard". For communication between elements using the MQTT protocol. The InfluxDB database is used for data storage. The Grafana tool is used to visualize historical data. The majority of the created system consists of open software. The system is universal, expandable and it is possible to connect it with another system. The system can be used or adapted to similar problems of advanced heating control.
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Temperature monitoring unit
Martínek, Jaroslav ; Kovář, Jan (referee) ; Kolka, Zdeněk (advisor)
Content of the Bachelor Thesis covers design and realisation of an unit for multipoint temperature measuring in cooling and freezing equipments in food stores and shops. As a controlling microcomputer is used an Atmel ATMega128, temperature sensors are realised by DS18S20 digital thermometers, connected via 1-wire bus. Unit can read temperature from 32 temperature sensors, includes memory for measured data, real time clock, Ethernet interface and display with buttons for basic user control. Temperatures are measured periodically with user defined interval, values are stored into internal memory and showed on display. Measured data can also be transferred via Ethernet to clinent PC, where can be viewed in form of table and graphs.
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Wireless signal transfer from temperature sensors
Hulanský, Jozef ; Drexler, Petr (referee) ; Roubal, Zdeněk (advisor)
The main goal of this bachelor’s thesis is to design a device capable of measuring temperature to prevent danger in critical hot areas of high voltage electric distribution boxes. Hardware platform is focused on the Atmega8 chip from ATMEL Corp. factory. In this dokuments is elaborate the Zigbee wireless communication protocol, some types of temperature senzors and power system. The second part of this dokument are about the particular solution of measuring temperature and carrying values with wireless modules. This thesis also contains schematic and printed circuit board with pictures of system in work. In the end of this document are indicated experiences in the development of work and other possible solutions in the future.
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Laboratory assignment for HCS 08 microcontrollers
Bilík, Jan ; Petyovský, Petr (referee) ; Macho, Tomáš (advisor)
The goal of my bachelor thesis is getting acquainted with serial buses I2C, SPI and 1-Wire and their implementation in communication between microcontroller NXP MC9S08LH64, temperature sensor, real-time clock circuit and shift register. The thesis also focuses on hardware connection with necessary circuits and behaviour of software functions used during data exchange.
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Multifunction board computer for motorcycles
Netáhlo, Tomáš ; Tošovský, Petr (referee) ; Brančík, Lubomír (advisor)
Master’s thesis deals with a design and a realization of multifunction board computer for motorcycles. The goal of the device is measuring speed, rotation speed of engine, temperature of ambient, temperature of engine, temperature in intake including signalization of overvoltage and hightemperature. The device is completed by above standard function such as measuring titl of motorcycle, climbing of route, route recording and data transmission to the computer. The thesis includes a complete solution of hardware and software part of the device.
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System for temperature monitoring in server rooms
Papež, Milan ; Havránek, Zdeněk (referee) ; Macho, Tomáš (advisor)
The aim of this thesis is the design and implementation of a system for temperature monitoring in a server room that is able to send e-mail when exceeding the set temperature value. For this purpose was used PIC18F97J60 microcontroller that includes an Ethernet controller peripheral. Sending e-mail is realized via SMTP protocol, which is included in the TCP/IP stack provided by the manufacturer of the microcontroller. For temperature measurement is used DS18B20 temperature sensors that communicate via the 1-Wire interface. Device also allows the remote conguration. Temperature monitoring was tested using five sensors.
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Control unit for IRC system
Mališ, Martin ; Kučera, Pavel (referee) ; Macho, Tomáš (advisor)
This bacheleor’s thesis deals with design of control system for temperature regulation in family house. System is designed for individual room heating and consist of one control unit and several thermostatic units, which are situated all over the house. Control unit is central element of heating system and it uses ZigBee technology in comunication with thermostatic units
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Control unit for aeroponic growing system
Vrabec, Miroslav ; Dulík, Tomáš (referee) ; Klozar, Lukáš (advisor)
This thesis deals with the history of a method of plants cultivation without original substrate. The method is hydroponics and its subsequent development is called aeroponics. This work outlines the design of the whole aeroponic system including a control unit. The control unit has been designed to control the injection of nutrient solution, which is essential to the life of plants.Further, the control unit performs the control of lighting period, temperature, air flow and also regulation of nutrient solution pH. The control unit also keeps records of all data necessary for the monitoring process and for the evaluation of time differencies in the system.
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The temperature measurement with semiconductor sensor
Dostálek, Martin ; Klíma, Bohumil (referee) ; Huták, Petr (advisor)
This bachelor work disserts on measurement of temperature using the electronic temperature sensors DS18B20, which are controlled by microcomputer type AVR. This sensors use for communication the 1-wire type data bus. The 1-wire data bus, designed by Dallas Semicondoctor, allows connect more devices to the control unit using two wires. This type of measuring elements offers simple handling for the user. The sensor transforms the measuring data directly to the digital data. The rate of the transmission is determined by number of bits in the resultant value and the sensor is programmable during attendance by the set mechanism (master). The sensor code is consistent with the value of measured temperature. That means it doesn’t require supplemental decoding. The resulting data are worked up and displayed on LCD continuously. First part of this work is focused on the theory of 1-wire element. Further, there is an explanation of the principle of the measuring sensor function and its controlling by the control unit. Next, there is a basic description of the AVR type microcomputers, more detailed description is aimed at the ATiny2313 controller, which is used in this work. The important part is dedicated to the implementation of the 1-wire protocol to the appropriate control unit.
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Meassuring system for building constructions
Vladař, Martin ; Franek, Lešek (referee) ; Bradáč, Zdeněk (advisor)
This thesis deals with the measurement of physical quantities in building using decentralized system for data collecting. The system consists of Raspberry Pi as a master device of the system. There are three branches connected to this master device. Each branch consists of up to 32 modules for data-concentration from sensors of physical quantities. The Raspberry Pi has implemented web interface for displaying measured values and system administration.
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