|
| |
|
|
Locating and counting people using radio networks
Varanai, Lukáš ; Zamazal, Michal (referee) ; Valach, Soběslav (advisor)
The aim of this bachelor thesis is the design and implementation of an application for locating people in indoor spaces. The thesis provides an overview of the available technologies, methods, user device hardware options and programming languages for the purpose of creating a mobile phone application. Subsequently, the design and implementation of an application for person localization and test measurements is discussed. The thesis concludes with a summary of the functionality of the implemented application and suggestions for future improvements.
|
|
|
Lokalizace na bázi Bluetooth
Machyňák, Augustin ; Rozman, Jaroslav (referee) ; Janoušek, Vladimír (advisor)
The thesis deals with the development of a device localization system using ESP. The system uses signal strength information to estimate the distance and then uses multilateration techniques to estimate device positions. To obtain the relative positions of the receivers it also uses signal strength, making it very user friendly to setup and configure. The resulting positions are either processed on the ESP itself with simple visualization or it is possible to use an external server implementation to process them with historical data and a more suitable visualisation of the positions. However, the accuracy is not satisfactory and only suggests the use of map generating techniques for each specific environment using which to determine, what combinations of received signal strength values correspond to each position is a more appropriate method for localization.
|
|
|
RF monitor tool
Hűbl, Filip ; Petyovský, Petr (referee) ; Valach, Soběslav (advisor)
This bachelor thesis investigates the detection of active WiFi and Bluetooth devices via a Raspberry Pi mini computer using Kismet software. Monitoring is performed in the 2.4 GHz and 5 GHz bands. The thesis discusses in detail the principles of operation of these technologies and methods of their possible detection. The results obtained provide information on the total number of active devices identified during the measurements, the movement of these devices and these devices are further categorized according to their type.
|
|
|
System for Electricity Consumption Registration
Hockicko, Matej ; Zachariášová, Marcela (referee) ; Mrázek, Vojtěch (advisor)
The aim of this work is to design a system to record the consumed electricity. This system will consist of an embedded device that monitors the optical output of the meter and a mobile application, which will be able to download and display the measured data using bluetooth technology. The embedded system will consist of a microcontroller from Nordic Semiconductor. The mobile application will be programmed in the Flutter framework. Historically measured data will be stored on the cloud. The focus of the design will be on the battery life of the embedded device, which will be powered by a CR2032 battery. The main benefit of this work is the ability to monitor electricity consumption using the embedded device and mobile application without the need of owning a smart meter.
|
|
|
Mobile App for Reading Sensor Data
Homola, Jan ; Neuwirth, Bernard (referee) ; Dydowicz, Petr (advisor)
The bachelor thesis focuses on the design and implementation of an application for reading sensor data. The thesis includes an analysis of the current state in the field of sensors, mobile applications and software tools. The practical part includes the design of a complete application including database schema, user interface designs and graphical elements of the application. Finally, the design and implementation costs are evaluated.
|
|
|
Remote control of an embedded system via a mobile application using data transfer over Bluetooth
Dvořák, Richard ; Friml, Dominik (referee) ; Dokoupil, Jakub (advisor)
This work is focused on programming a mobile application that will be compatible with common mobile operating systems, and demonstrating two-way wireless communication between the application and the specified ESP32 module. Bluetooth wireless technology was chosen for communication between devices, and the mobile application was designed and programmed in the Qt Framework. To demonstrate the functionality of wireless communication, the ESP32 module is configured in the role of an SPP server, to which the mobile device connects in the role of a client.
|
|
|
Wireless door unlocking device
Cejnek, Viktor ; Zbožínek, Tadeáš (referee) ; Dvorský, Adam (advisor)
The bachelor’s thesis deals with the study of the problem, design, and construction of the “Wireless door unlocking device”. Firstly, the principle of locks, the cylinder function and industry made electronic locks are studied. Next, the main circuit board is designed, made, and powered on. After that the construction of the prototype is designed and created. Finally, the test and comparison and the manual are made.
|
|
|
Implementing of GSM modem in PBX Asterisk
Benýšek, Jiří ; Krajsa, Ondřej (referee) ; Šilhavý, Pavel (advisor)
Short Message Service (shortly SMS) is the most widely used type of communication systems. The main advantages are that allow a fast exchange of messages between devices, a very good availability through GSM and a reasonable price. Nowadays the SMS service support has expanded to include other technologies such as a service of the information navigation and the remote connection. The master‘s thesis concentrates on the Short Message Service, deals with basic principles and statements using by this service. The topic of the thesis is software PBX Asterisk and its possibility of SMS implementation, especially verification of SMS processing goes through the PSTN. After the basic introduction the master‘s work deals with the installation and configuration of the server. The main focus is on an installation of the operating system with an additional pack including necessary libraries and modules for a correct working of the server. The following section is paying attention to the Asterisk server configuration, especially a hardware card installation which is necessary for a connection with analog telephones, done by Bluetooth connections, set up user’s profiles of the SIP protocol and create a dial plan. This is followed by a verification of SMS option of the implementation and communication with GSM modem which is used as a gate for an exchange SMS between PSTN and GSM network. The last chapter of this master‘s thesis comes with the aimed results.
|
|
|
System with RC Model Servos
Kutěj, Jaromír ; Nosko, Svetozár (referee) ; Musil, Martin (advisor)
This thesis addresses the design of a movable RC model with a use of servo motors. It describes both the analysis of suitable hardware and a realization of the project with an emphasis on microcomputer controlled devices and technologies communication technologies with said devices. Furthermore, an interaction a interfacing with user is discussed. Based on findings a system is then implemented in form of a model of a car built atop of microcomputer, controlled wirelessly using a mobile application. This system is then enhanced by proximity sensors that prevent collisions by halting movement of the car.
|
guest ::
