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Enhancing Localization Accuracy in Industrial Wearables with LoRaWAN
Svertoka, Ekaterina ; Martian, Alexandru (referee) ; Digulescu-Popescu,, Angela (referee) ; Lohan, Elena Simona (referee) ; Hošek,, Jiří (referee) ; Burget, Radim (advisor)
Tento výzkum kombinuje teoretické poznatky, simulační studie a praktické experimenty s cílem prozkoumat oblast průmyslových nositelných zařízení se zaměřením na zvýšení přesnosti jejich lokalizace pomocí technologie LoRaWAN. Práce vedla k vytvoření dvou klasifikací funkcí a metrik průmyslových nositelných zařízení a 7 volně přístupných datových sad LoRaWAN v různých prostředích (vnitřních, venkovních a podzemních). Kromě toho práce provádí komplexní posouzení přesnosti lokalizace pomocí více přístupů, analyzuje vliv proměnných z měřicí kampaně a technik zpracování dat. Dále navrhuje úpravy algoritmu k-NN, které spolu s metodami předzpracování vedou ke zvýšení přesnosti o 17,2 % ve srovnání s původním benchmarkem. Navržené algoritmy, ověřené na souborech dat LoRaWAN, nabízejí potenciální využití v různých oblastech. Studie uzavírá validaci lokalizace na bázi LoRaWAN s přesností 2,6 m v interiéru a 4 m v exteriéru, což naznačuje, že ačkoli lokalizace na bázi LoRaWAN není tak přesná jako u předních technologií, lze ji využít v odvětvích, jako je logistika, zemědělství a inteligentní výroba, kde není absolutní přesnost nezbytná.
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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.
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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.
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Development of System for Landmine Detection
Šmelka, Martin ; Kubíček, Michal (referee) ; Doležal, Tomáš (advisor)
The Bachelor's thesis will cover a proposal for the construction of a demonstration system designed to discover objects that represent hidden „mines“ in a field. In the first phase, a systém will be designed to simulate the behaviour of the final device using the MATLAB interface. The proposed code will generate a GUI that will simulate the system in the field. After discovering a mine, the assigned cell will be marked, and the location will be signalled to the operator. Afterwards, the design of the demonstrator will be conceptualised and a working prototype fabricated to verify the functionality of the proposal.
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Automatická kontrola dopravního značení
Čechmánek, Roman ; Klíma, Ondřej (referee) ; Musil, Petr (advisor)
The aim of this work is to create a cost-effective tool capable that would be able to automate the process of traffic sign control. This includes working with records of drives on land communications, created using inexpensive recording devices such as GoPro action cameras or certain dashcams. The control is based on the system localized traffic signs and historical traffic sign mapping data. The result of the work is a system whose input consists of drive records and historical data, and whose output is two files containing information about the inspection results. The first of these is a GEOJSON file, suitable for further processing of the collected data, and an HTML file that provides a simple user interface visualizing the inspection results on an interactive web map.
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Multiplayer game using player location
Nguyen, Hoang Nam ; Materna, Zdeněk (referee) ; Beran, Vítězslav (advisor)
This bachelor’s thesis examines the methodology for evaluating the functionality and user experience of a multiplayer mobile game using geolocation technologies. The study focuses on identifying key factors influencing the enjoyment and success of the game across different environments and player counts. The research sample consists of players of the mobile game from various locations. Through a questionnaire survey, the study analyzes how participants express their views on various aspects of the game and whether these aspects influence their overall impression and experience. The findings provide valuable insights into the factors contributing to the success of mobile games and can serve as a basis for further development and optimization of gaming applications.
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Fiducial Marker-Based Localization System
Hála, David ; Horeličan, Tomáš (referee) ; Gábrlík, Petr (advisor)
This work deals with localization of the robot in space using optical markers. In the first part of the thesis, the reader is introduced to the problems and pitfalls of this project and all the important connections, both mathematical and physical, are explained. The second part then focuses on the description of the procedure that was chosen to design the program and the ideas that led to its completion.
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Validation of the tool for localization of symmetrical and asymmetrical faults
Šmehlík, Daniel ; Jurák, Viktor (referee) ; Topolánek, David (advisor)
Disturbances in power systems that can cause widespread outages and limit power supply require rapid detection, location and elimination. Earth faults and short circuits, each with their own complications for localization, pose significant challenges to power operations. This thesis focuses on the validation of Vdip, a tool designed to efficiently locate these faults. The tool was tested in two simulation environments, RTDS and PSCAD, to simulate different fault scenarios and record data for analysis. These tests provided important information for evaluating the effectiveness of Vdip.
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Route control
Dolobáč, Dávid ; Janáková, Ilona (referee) ; Richter, Miloslav (advisor)
This thesis sets itself the task to detect geometric changes, located on a previously known route, which is considered as a template or pattern. Geometric changes represent rigid transformations of objects in a scene, specifically their rotation, displacement and their combinations. Another type of change is the addition of new or removal of original objects. The original route is captured with a monocular camera and by using methods of photogrammetry, a 3D model of a scene in a point representation is reconstructed from the video sequence. In the same manner, a 3D model of the scene containing changes is created, but this model captures only the local section of the original route. This local point cloud is registered in the 3D model of the original route, so that the 3D models can be directly compared with each other. The investigated space is divided into cubic voxels of the same size which are successively traversed and the degree of similarity of local surfaces is investigated for each of them. The solution results in 3D points from both clouds marked as changed or unchanged. The mentioned methods are tested on real data in scenarios with different geometric modifications of the scene and the evaluation of change detection is implemented as in the case of a binary classifier.
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Setting up marketing communication in the franchise system in the context of localization of individual outlets
KOLOUCH, Marek
The subject of this bachelor thesis is to find the optimal balance between centrally managed marketing strategies and the individual needs of each outlets within the Potrefená husa franchise network. The research includes an analysis of the current the state of marketing communication across the Potrefená husa franchise network, an investigation into customer food preferences within specific outlets and an interview with a representative of manager of selected branches. The results of the quantitative and qualitative analysis showed that the Potrefená husa should place particular emphasis on promoting a unique dining experience and atmosphere of the restaurants through various marketing channels, along with active use of influencer marketing and online campaigns. It is also important to develop an online presence and monitoring market trends. For the Liberec branch, it is recommended to focus on making the lunch menu more attractive, its convenient location in the city centre and optimising occupancy during the day. Potrefená goose in Prague should focus on increasing average spend per person, to encourage tourists and foreign clientele, to optimise the lunch menu and to efficient restaurant occupancy. The IGY shopping centre in České Budějovice should be promote a favourable daily offer and at the same time it is appropriate to increase the average spending per person and to take advantage of the favourable location in the shopping centre. Potrefená goose in České Budějovice Budějovice on Česká Street should make its main efforts in marketing communication.
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