|
|
Material Position Tracking For Manufacturing
Plant
Sládeček, Michal
This article describes implementation of an indoor positioning system for tracking the location and movement of material and products through the manufacturing plant. The system is designed with regards to simple installation and low overall implementation costs. It utilizes method of Wi-Fi and magnetic field fingerprinting. The system employs a client hardware (active tag with Wi-Fi module and sensors designed for this project) communicating with a server software which does the mapping and fingerprinting processing. Final positioning data are then collected for further data analysis aiming to improve efficiency of manufacturing processes.
|
|
|
Recognition of vehicles using signals sensed by smartphone
Nevěčná, Leona ; Vítek, Martin (referee) ; Smíšek, Radovan (advisor)
Thanks to the development in recent years, the placement of miniaturized sensors such as accelerometers, gyroscopes, magnetometers, global positioning system receivers (GPS), microphones or others to commercially sold smartphones is increasing. Use of these sensors (which are to be found in the smartphone) for human activity recognition with health care improvement in mind is a discussed theme. Advantages of the use of smartphone for human movement monitoring lies in the fact that it is a device that the person measured carries with them and there are no additional costs. The disadvantages are a limited storage and battery. Therefore, only accelerometer, gyroscope, magnetometer, and microphone were chosen because their combination achieves best results. GPS sensor was excluded for its lack of reliability in sampling and for being energy demanding. Features were computed from the measured data and used for learning of the classification model. The highest accuracy was achieved with the use of a machine learning method called Random Forest. The main goal of this work was to create an algorithm for transportation mode recognition using signals sensed by a smartphone. The created algorithm succeeds in classification of walk, car, bus, tram, train, and bike in 97.4 % with 20 % holdout validation. When tested on a new set of data from the tenth volunteer, the resulting accuracy counted as average form classification recall for each transportation mode reached 90.49 %.
|
|
|
Material position tracking in production hall
Sládeček, Michal ; Otáhal, Alexandr (referee) ; Hejátková, Edita (advisor)
This diploma thesis describes implementation of an indoor positioning system for tracking the location and movement of material and products through the manufacturing plant. The system is designed with regards to simple installation and low overall implementation costs. It utilizes method of Wi-Fi and magnetic field fingerprinting. The system employs a client hardware (active tag with Wi-Fi module and sensors designed for this project) communicating with a server software which does the mapping and fingerprinting processing. Finall positioning system is prepared to collect locations data for further analysis aiming to improve efficiency of manufacturing processes.
|
|
|
Intelligent Control Using Hand Gestures
Apjar, Martin ; Hyrš, Martin (referee) ; Šimek, Václav (advisor)
This work deals with a creation of the device suitable for capturing the gestures of the human´s hand, selection of suitable sensors, creation of service software and communication proposal. The device working is based on Arduino board with microprocessor from the company Atmel ATmega32u4. In the first part of the thesis a detailed search of the existing ways of solving the given problem was performed. The following sections are devoted to the design of my solution, the description of the fabrication of the model body and the description of the used materials. Further, the Thesis contains a description of all sensors and scanners and a detailed description of the supplied PCB. At the end we will find the program section where the control and sensor work is disassembled. The result of this work is a hand-held model and firmware.
|
|
|
Prerequisites for building magnetometer out of carbon nanotubes for geological applications
Mazanec, Martin ; Kletetschka, Günther (advisor) ; Kohout, Tomáš (referee)
This thesis is the first step in a long-therm project with object to built magnetometer from carbon nanotubes. At the beginning of the thesis is introduction to magnetism and its basic physical characteristics, brief description of the Earth's magnetic field, some magnetic minerals and material behavior in a magnetic filed. All this in a geological context. In the second part I focus on the measurment of the magnetic field, especially on some specific device. The third part deals with the allotrope of carbon - graphene structures. It offers a brief overview of thein properties, one chapter about the productiona and possible use. In discussion I try to combine these parts with a specific purpose, which is the uso of carbon nanotubes in measuring the rock magnetism. We present a simplified funcion principle of the discussed device, the first steps of construction and inicial measurment.
|
|
|
Automatic elevation and azimuth measurement system
Večeřa, Jindřich ; Kasal, Miroslav (referee) ; Záplata, Filip (advisor)
This bachelor´s thesis deals with an automatic elevation and azimuth measurement system, which will be used for antenna positioning. It is realized by using magnetometer and accelerometer. Important part of the system is tilt compensation and calibration for selected location. This system will send data to PC and also display them on LCD display. This project contains theory of measured quantities, method choice, component choice, realization of wiring, PCB design, programming device, testing device and accuracy determination.
|
|
|
3D controller
Hrubý, Lukáš ; Fujcik, Lukáš (referee) ; Bohrn, Marek (advisor)
The following work deals with problems of scanning of device position in space, processing of collected data about its position and sending these data to end device. In scope of this work will be created special controller which will use accelerometer, gyroscope and magnetometer to scan its actual position in respect to Earth and it will wirelesly send its position to controlled device. Individual components for proposal will be chosen based on previous experience and available documentation.
|
|
|
Electronic Compass Based on Three-Axis Magnetometer
Okoun, Petr ; Povalač, Aleš (referee) ; Šebesta, Jiří (advisor)
This semestral thesis deals with development of electronic compass with three-axis magnetometer which eliminates deficiencies of magnetic compass and then the developed device is usable anywhere at Earth's surface around the world. A compass is able to measure the azimuth only if its position is horizontal. Bearing in mind that this condition cannot be satisfied in any case, the solution of compass tilt compensation using accelerometer is part of the project.
|
|
| |
|
|
9DOF module for orientation measurement
Hojdík, Matej ; Šebesta, Jiří (referee) ; Frýza, Tomáš (advisor)
This thesis deals with a design of 9DOF module for the evaluation of orientation in space. The thesis includes a theoretical description of sensors, mathematical apparatus for rotating and the Kalman filter. The practical part deals with the design of hardware, firmware and software, whereby the mathematical formulas set out in the theoretical part are applied. In the last part a testing of the created module is presented.
|
guest ::
