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Poka Yoke system for production oversee of CVS
Klabal, Petr ; Havlíková, Marie (referee) ; Štohl, Radek (advisor)
Bachelor’s thesis deals with the Poka Yoke system, which is used to achieve zero defects and limitations of quality control. There are different types of mistakes, of which the most common mistakes are caused by the operator. Using the method Poka Yoke it is possible to propose such measures to eliminate mistakes. In cooperation with IMI International s.r.o. company, a division Norgren CZ and led by Production Engineer Petr Štohl and Product Design Engineer Ondřej Kubernát I focuses on the assembly of CVS low valve. In this assembly I monitor to operator, who can make the different mistakes in the individual steps, which may negatively affect the function of CVS low valve. I evaluate the severity for each mistake and for the most serious of these mistakes I suggest the possibility of checking the work of the operator that would lead to its discovery.
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The pressure measuring using LTCC technology
Straka, Michal ; Řezníček, Michal (referee) ; Kosina, Petr (advisor)
This thesis deals with the problems of the pressure sensor made on a low temperature co-fired ceramics. The pressure sensor converts the measured physical quantity to the electrical signal. The strain-gauge, capacitive and optical sensors are used for scanning of the pressure. It is possible to construct the multilayer sensors with holes and cutouts, through the use of the 3D structure on LTCC sensors. The passive parts can be applied on this layer through the thin-layer or thick-layer technology, which creates conductible paths and contacts for parts and outlets. In the practical part of the work, a few construction types of pressure sensors are designed, implemented and measured. Emphasis is given to strain-gauge strip sensor and possible problems during its manufacture, lamination and deformation of burn-out.
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Anti-crash System for Quadcopter with set of sonars
Hrazdil, Radim ; Musil, Petr (referee) ; Beran, Vítězslav (advisor)
This bachelor’s thesis is focused on installing ultrasonic sonars on a quadcopter, connecting them to the Arduino Micro microcontroller and implementing a program for controlling connected sonars. A demonstrational application using ROS framework was designed and implemented. Based on data received from sonars this application detects nearby obstacles and is able to maintain safe distance as well as slow down when getting too close to an obstacle. The design of the collision avoidance system is focused on high frequency of measurements and maximal space coverage.
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Robot Controlled by PIC Microprocessor Unit
Heřman, Petr ; Luža, Radim (referee) ; Rozman, Jaroslav (advisor)
This thesis describes design of a cheap robot. It includes implementation of firmware of low level control unit based on microcontroller PIC. The firmware drives motors, gains sensors data and communicates with the high level control unit. Furthermore the thesis presents realisation of connection to the robotic operation system ROS and its standard structures allowing usage of existing packages for the robot teleoperation and displaying sensor data on the remote computer. The thesis finally reports experiments with the robot. The constructed prototype is the model of the robotic lawn mower, however the whole solution has universal usage.
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Microprocessor control of sensory platform
Konečný, Lukáš ; Zuth, Daniel (referee) ; Matoušek, Radomil (advisor)
This dissertation deals with a development of MCU position steering application of two servomotors and with data process evaluation from a connected sensor for distance measuring as well. The connected sensor is adjustable as for azimuth and elevation. Data from the sensor will be useful both for instant evaluation according to preset criteria and for additional possible processing at PC. The development is to be carry out at MCU ATmega128. HMI is represented with keyboard, LCD and joystick. The result of the dissertation is to be adjusted for practical demo. This research has been supported by the Czech Ministry of Education in the frame of MSM 0021630529 Research Intention Inteligent Systems in Automation.
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Environment control with microcontroller
Králíček, Martin ; Šebesta, Jiří (referee) ; Fedra, Zbyněk (advisor)
This bachelor project focuses on equipment for environment management and check with help of microcontroller. This equipment should enable us to check and manage home environment for example for goldfish, hamsters, spiders and other small pets. Further on, this project describes individual parts of equipment which the ECM-01 consists of. ECM-01 is consists of general block, feed block, relay block with power supply and sensors. The ECM-01 consists of several functional blocks which are controlled by the main microcontroller. The functional blocks contain measurement transducers and action units. The choice of blocks depends both on individual environment and the user. The user can choose which values he needs to control and measure.
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Indoor Robot - Sensoty Subsystem
Mlatecová, Hana ; Burian, František (referee) ; Žalud, Luděk (advisor)
This bachelor’s thesis deals with problematic of mobile robots, especially with the sensory subsystem. It provides the information of robot’s vicinity and orientation to global and local navigation. Global navigation is based on self-organizing neuron map. Document includes the analysis of situation and design of sensory subsystem for specified robot.
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Autonomous Control System for Mobile Platform
Kříž, Vlastimil ; Burian, František (referee) ; Žalud, Luděk (advisor)
This work undertake the design of autonomous control system for mobile platform – slot car – for the Freescale Race Challenge 2009. The aim is to draw and implement control system, which will be able to drive the car trough the previously unknow path in the shortest time. In work is described factors that affect runing the car and draw optimal driving style. Then sensors for the car, type of motor control and control unit are chosen. The algorithms for maping the profile and for lap recognition are developed. Next the realization of the systém are descripted.
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Electronic timekeeping with movement detection
Paulus, Luboš ; Brož, Vladimír (referee) ; Klusáček, Stanislav (advisor)
Agility is a competition for dogs and their whipper. The score is made from numbers of errors which dog made and also time in which the dog overcomes crimps decides. Start and finish are detected by the reflective optical spar with logical NPN output. Spar havs to detect only dog in set position in recruit. This signal is processed by a micro – controller, which processes data, more precisely time with accuracy on tenths, sends data on the superior PC.The communication of micro-controller and PC is possible only through USB, RS 232 or wireless RS 232.
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Meteo weather station
Dvořák, Jiří ; Fajmon, Petr (referee) ; Fedra, Zbyněk (advisor)
The aim of this master‘s thesis is design and construction of home meteo weather station, the choice of applicable temperature, humidity and pressure sensors and characterization of workable device of station. The core of the station is microcontroller ATmega8 used for process data from sensors. Evaluative criteria for choice of sensors will be comunicate interface, accuracy, operating range, current drain and other aspects. Outer transmittin unit measure air temperature and relative humidity. These data are trasmitted by wireless radio module to interior receiving unit, that measure interior temperature and atmospherical pressure and represent measured data to LCD display including dew point. The data are transmitting to the internet and storing in the database. Measured values are available on the web page where you can display the graphs of last measured values.
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