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Design of Sensor Modules for ZigBee Wireless Network
Tichý, Andrej ; Vašíček, Zdeněk (referee) ; Šimek, Václav (advisor)
The purpose of this study is to contribute to spreading of the global phenomenon IoT and to create a sensory network. In my study I focused on the development of active and passive modules using the IEEE802.15.4 standard based on the ZigBee protocol. When creating my modules I was using the micro-controller CC2530 by Texas Instruments having the processor platform 8051. To implement the communication firmware for sensory modules I used the Z-Stack 3.0 implementation. The main communicator uses the CC2530 micro-controller as ZigBee network preprocessor and miniPC raspberry pi as ZigBee application processor. As a part of this study I created an active module that enables to control the relay; an RGB led strap using the PWM modulation and also the electric current measurement using noninvasive sensors. I also created a passive module including sensors BME280, TSL2561 and DHT11 to measure the air pressure, temperature, humidity and light intensity. Furthermore I created an universal module that makes easier the creation of new prototypes. Not least I created all-purpose raspberry mini-module. The relevance of this study is given by creation of module prototypes using the ZigBee protocol. Special value within this study has the the mini-module for Raspberry Pi which can be used in various roles within the ZigBee topology.
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Digital factory in the company Ravensburger Kraton s.r.o.
Kusý, Jan ; Kaczmarczyk, Václav (referee) ; Benešl, Tomáš (advisor)
Bachelor’s thesis discusses the analysis of the term digital factory and the related initiative Industry 4.0. The work is processed in cooperation with the company Ravensburger Karton s.r.o. based in Polička and part of the work is devoted to its description. Furthermore, an analysis of the current production monitoring system, which is based on the WorkMonitor monitoring device from company Papouch, is processed. The main goal of this work is to design and manufacture monitoring devices communicating both on the WiFi interface and using an Ethernet cable. The individual ideas of design and production of both devices are described. Finally, an analysis of the advantages and disadvantages of the solution is performed, including a price comparison with the devices listed in the Market Research chapter.
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Monitoring of operating data of handling equipment
Fikar, Vratislav ; Vobejda, Lukáš (referee) ; Šedivá, Soňa (advisor)
Master’s thesis deals with the design of monitoring of handling equipment. Measured quantities are the switched-on state of the forklift, the time of active use, monitoring of transported material, and the total traveled distance. For each quantity, several possible sensing methods are outlined followed by a summary of the pros and cons of each method, which served as the basis for selecting the most suitable sensor for sensing the required information. The theoretical part of the thesis outlines the proposals in terms of both theoretical aspects as well as the implementation of the sensors along with proposals for possible mounting on a forklift. The proposed application was built on top of the Workmonitor RKC2.0 development kit, which was first developed for injection molding machine monitoring equipment. The proposed solution further expands the Workmonitor RKC2.0 software with additional features, such as forklift data collection, data processing, and streaming of collected data via WiFi to a local server. The final part then describes the mounting of sensors in the forklift, the final software changes, and the presentation of the collected data.
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Meteorological station system
Čada, Jan ; Balík, Miroslav (referee) ; Lattenberg, Ivo (advisor)
This bachelor thesis deals with the design and implementation of a online meteorological station system, which consists of individual weather stations that communicate via the Internet with the server. The first part of the thesis discusses the principles of measuring major meteorological variables and deals with the selection of suitable sensors for measuring temperature, atmospheric pressure, humidity, wind speed and rainfall. In the practical part, one of the weather stations based on Raspberry Pi Zero microcomputer is designed and realized. As a complement to the measured data, the station includes a camera that captures the view from the site where the meteostation is installed. 3D printing is used to realize most of the mechanical parts, it has the advantage of speed, accuracy and easy reproducibility. For the measurement of temperature, pressure and humidity, a combined sensor BME280 from Bosch is used, which is placed in a small Stevenson screen. The wind speed is measured by a cup anemometer whose rotation is sensed by an integrated Hall sensor. The output pulses are then counted using the PCF8583 circuit, which has an I2C interface for reading the values with a Raspberry Pi microcomputer. Special attention is paid to the construction of a custom calibratable tipping bucket rain gauge with a resolution of 0,5 mm, whose mechanical motion is also sensed by a Hall sensor as in the anemometer. The reading of the data from sensors and sending it to the server is handled by a Python script. For storing and presenting data to users, a custom server solution based on LAMP webserver is implemented, its source codes are written in PHP, HTML, JavaScript and CSS. In addition to the web interface, which displays the data in graphs, the measured data can be also presented to the user via an application for mobile devices based on Android. The application was developed in C# using the Xamarin framework in the Microsoft Visual Studio development environment. Among other things, it implements a widget for quick access to the measured values directly from the home screen. In the final part of the thesis, interesting findings obtained by observing the measured values are mentioned.
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Home automation, control unit
Konečný, Jakub ; Novotný, Radovan (referee) ; Levek, Vladimír (advisor)
This bachelor's thesis focuses on theory about a home automation and represents the solution of the smart central server unit, designed to control wireless connected devices, read and display temperature, pressure, relative humidity data and set up automatic functions in graphical user interface. The work is more focused on the software section and describes the implementation of server technologies.
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Device for monitoring the environmental quality in the car
Doležal, Lukáš ; Szendiuch, Ivan (referee) ; Levek, Vladimír (advisor)
This bachelor's thesis deals with the design of equipment for monitoring the internal environment of the cabin of a passenger car. Equipment suitable for measuring force, atmospheric pressure, humidity, possible noise level and noise level. The main control element of the device is a microcontroller providing communication with the used sensors. The available data is shown on the display and is stored in memory. For communication with a computer, it is possible to use the USB interface using stored data that can be analyzed and processed.
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Temperature, pressure and humidity monitoring system for a workshop floor
Kudera, Tomáš ; Arm, Jakub (referee) ; Fiedler, Petr (advisor)
This thesis deals with the design of overall concept of distributed system which is used for temperature, pressure and humidity measurement. The system is adapted to be used in instrument transformers and sensors production hall of ABB s.r.o. Brno. Firstly, the requirements for the measuring system are defined. After that market research focused on sensors and measurement modules is performed. The selected sensor is afterwards built into own measurement module for which hardware and software part is designed. The work continues with design of local and remote database of measured values. Besides, the PC software used for local and remote data storage is designed afterwards. The components of the measurement system are tested in the final part of the thesis.
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HW platform for surveillance over maritime container transport
Roško, Tomáš ; Možný, Radek (referee) ; Musil, Petr (advisor)
The complexity of international transportation is increasing, and with that, the logistics requirements also increase: such as the need to monitor containers’ location or measure inside conditions. Despite these demands, marine transportation faces specific technical problems, such as the need for sending data precisely, often, and with low energy consumption. This paper aims to create a monitoring device that meets the demands of marine transportation. The device combines satellite and mobile networks to control the container location and, at the same time, allows for precise pinpointing of place and availability of access while having low battery consumption. The theoretical part of the paper explains the process of selecting components and justification of the process with regard to market options. The practical part contains a diagram of the connection of the modules and sensors. Next, the design and manufacture of the printed circuit board and custom 3D printed box are discussed. The software part deals with data protocol and the description of the application, which is then tested with a particular focus on measuring and transmitting the values onto the server.
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Arduino weather station
Navrátil, Michal ; Michl, Antonín (referee) ; Šoustek, Petr (advisor)
The aim of this bachelor thesis is to build remote, solar powered weather station using Paricle platform. Weather station consists of Photon module, solar panel, sensors to measuring the temperature, pressure, humidity and speed of wind and of the webserver. Sensors are conected directly to the Photon module, which reads data from sensors and sending them over wifi to the webserver, which writes data simultaneously to the SQLite database and to Google Sheets. Current and historical data with charts are accessible from database, web interface or directly in Google Sheets.
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Meteorological station system
Čada, Jan ; Balík, Miroslav (referee) ; Lattenberg, Ivo (advisor)
This bachelor thesis deals with the design and implementation of a online meteorological station system, which consists of individual weather stations that communicate via the Internet with the server. The first part of the thesis discusses the principles of measuring major meteorological variables and deals with the selection of suitable sensors for measuring temperature, atmospheric pressure, humidity, wind speed and rainfall. In the practical part, one of the weather stations based on Raspberry Pi Zero microcomputer is designed and realized. As a complement to the measured data, the station includes a camera that captures the view from the site where the meteostation is installed. 3D printing is used to realize most of the mechanical parts, it has the advantage of speed, accuracy and easy reproducibility. For the measurement of temperature, pressure and humidity, a combined sensor BME280 from Bosch is used, which is placed in a small Stevenson screen. The wind speed is measured by a cup anemometer whose rotation is sensed by an integrated Hall sensor. The output pulses are then counted using the PCF8583 circuit, which has an I2C interface for reading the values with a Raspberry Pi microcomputer. Special attention is paid to the construction of a custom calibratable tipping bucket rain gauge with a resolution of 0,5 mm, whose mechanical motion is also sensed by a Hall sensor as in the anemometer. The reading of the data from sensors and sending it to the server is handled by a Python script. For storing and presenting data to users, a custom server solution based on LAMP webserver is implemented, its source codes are written in PHP, HTML, JavaScript and CSS. In addition to the web interface, which displays the data in graphs, the measured data can be also presented to the user via an application for mobile devices based on Android. The application was developed in C# using the Xamarin framework in the Microsoft Visual Studio development environment. Among other things, it implements a widget for quick access to the measured values directly from the home screen. In the final part of the thesis, interesting findings obtained by observing the measured values are mentioned.
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