General Topics of Thesis for Academic Year 2014/2015
The condition of the choice of thesis is selecting subjects from the same department.
Department of Telecommunications (Department no. 440):
Speech Quality Monitoring in Asterisk PBX (miroslav.voznak@vsb.cz)
Abstract: The Asterisk is a SW solution enabling mainly voice communication in a corporate
environment. Speech quality is a crucial factor that affects the level of voice services and therefore
the appropriate attention must be given to its assessment. The goal of this diploma thesis is to
implement the speech quality monitoring into Asterisk PBX and the approach can be based on
intrusive or non-intrusive methods. The calculated MOS score will be provided to the individual
calls.
Highly Scalable SIP Proxy Architecture (miroslav.voznak@vsb.cz)
Abstract: One of the advantages of cloud computing is dynamic scaling which allows cloud users to
automatically expand or reduce the number of VM instances as required by the application. This
feature is attractive for VoIP providers. The aim of the thesis is to implement such highly scalable
SIP proxy architecture based on a cloud computing platform.
Department of Cybernetics and Biomedical Engineering (Department no. 450):
Body Sensor Network (BSN) (martin.cerny@vsb.cz)
Abstract: BSN are now very frequently discussed topic. They are a network of sensors that can use
the impedance characteristics of the human body to its own communication with each other.
Transmission medium becomes a human body.
BSN is the basis for knowledge of the impedance characteristics of the human body. The scope of
this project is the first detecting impedance characteristics of the human body. Construction
equipment that is able to detect human body impedance at different frequencies. The next step can
be identified proposals for the use of knowledge in the BSN.
Home Sensor Network (martin.cerny@vsb.cz)
Abstract: Caring for persons with handicaps or the elderly in their home environment today is the
way to avoid unwanted consequences of aging.
HMS is furnishing such devices that monitor the person under surveillance and help her in case of
sudden health problem. Other components are elements of home automation, which help to increase
living comfort. Our own test laboratory HMS apartment for which they are ready to end solutions.
The project is to ensure cooperation between wireless communication devices, installation of these
devices in the apartment, performance measurement and control long-term series of measurements.
The following measured data then suggests student evaluation or applied algorithms, based on
fuzzy logic, which according to the results of existing work shows a good solution.
Measurement of biosensors impedance characteristics (martin.cerny@vsb.cz)
Abstract: Biosensors in biomedical technique are most common used devices for scanning
electrical activities in human body. This thesis is focused on impedance characteristics of
biosensors.
Biosensors
are
mostly
used
for
obtaining
bioelectrical
signals.
Measurement will be done by using millimeter EVAL AD5933 or alternatively, which is ideal for
this kind of measurement. This millimeter is also good for electrical-impedance spectroscopy and
non-invasive measurement of blood impedance. The goal of the project will be development of
bioimpedance measurement from 0.05 to 1 kHz range, on electrode sample. The impedance
characteristic is very useful for new electrode design and verification.
Actimetry – position, location and fall detection from accelerometers signal (martin.cerny@vsb.cz)
Abstract: In modern day with modern technologies and modern procedures, where many kinds of
human activities take place, biomedicine has an important place. It focuses on the connection
between medical science and technical science, in order to find new diagnostic and monitoring
instruments for protection of human health. One of the primary monitoring element is reading the
physical characteristics of the human. It means to monitor movement and positions of human body.
Now there exists technical instruments, which can scan and evaluate these parameters with good
results. For example, accelerometers, gyroscopes. The signals of these instruments can be
processed, evaluated and, with combination of biological signals, it could make up a large-scale
monitoring system, for use by a patient in home care without need of medical professional.
The goal of the project will be development of laboratory task, for data measurement and
processing from accelerometers and gyroscopes. The sensors on phantom model will be placed into
the black box and there were analysed and compared the position of the phantom in time during
random movement of BlackBox. The signal from different sensor type will be compared.
Design of Control Systems with FPGA (vladimir.kasik@vsb.cz)
Abstract: FPGA - Field Programmable Gate Array - an integrated circuit on which the user can
implement any logic up to a high degree of complexity. Thanks to parallelism and user hardware
customization the FPGA can be used efficiently for fast process control. In modern FPGA are
preferably used parallel adders and multipliers and thus there can be achieved the fastest feedback
control at present. The aim of the thesis is to analyze the topic of control systems with FPGA and
the design and implementation of PID (or PSD) controller for DC motor control. Resources for
project implementation will include a development board with Xilinx FPGA, incremental encoder
and at least LED display and buttons.
Modern Methods of Signal Processing (zdenek.machacek@vsb.cz)
Abstract: Design, implementation and realization of the complex system solution for the analysis
and detection of audio or video data signal for the real time industrial applications. The system will
be developed with a sequence of sophisticated algorithms and methods to analyses performing,
which allow signal processing, system parameters changing and visualization on the user interface.
Implementation of modern signal processing methods enables realization and innovation of existing
legacy systems and it improves the detection accuracy in signal processes.
Department of Applied Mathematics (Department no. 470):
Recurrence and recurrence matrices in applications (marek.lampart@vsb.cz)
Abstract: There are several possibilities how to describe behavior of a given dynamical system. One
of the possibility is to study recurrence, that is if the point is returning into itself origin, with a
suitable error. The way how to characterize time series is to construct recurrence matrix.
The tools for the thesis:
1. study of the notion,
2. description of the elementary properties of the recurrence matrix,
3. find out a suitable application example for recurrence matrix,
4. construction an algorithm for the recurrence plot,
5. conclusions.
References:
[1] M. Romano, T. Kurths, Recurrence plots for the analysis of complex systems, Physics Reports
438 (2007), 237 – 329
[2] F. Lesne, Recurrence plots for symbolic sequences, International Journal of Bifurcation and
Chaos, Vol. 20, No. 6 (2010), 1731 -– 1749
[3] P. Kurka, Topological and symbolic dynamics, Société Mathématique de France, 2003
[4] S. Lynch, Dynamical systems with Applications using Matlab, Birkhauser, 2004, ISBN: 0-81764321-4
Bifurcation diagrams of discrete dynamical systems (marek.lampart@vsb.cz)
The mail aim of the bifurcation theory is to study changes of the dynamical system under the change
of one or more parameter. It is possible to use some techniques coming from bifurcation theory for
study of dynamical properties of the mechanical systems and valuable changes between them.
The goals of the bachelor thesis are bifurcation diagrams of discrete dynamical systems. It will
focus on discrete dynamical systems of low dimension, mostly on the interval, circle and the plane.
The bifurcation diagrams should be constructed under suitable maps and it should be studied the
properties of the system using them.
The tools for the thesis:
1. to study and define all needed notions
2. to construct typical maps of the discrete dynamical systems
3. to generate the bifurcation diagram (use suitable software)
4. to study properties coming from the diagram
References:
[1] R.L. Devaney, An Introduction to Chaotics Dynamical Systems, Benjamin/Cummings, Menlo
Park, CA., 1986.
[2] Lynch, Stephen: Dynamical systems with applications using Maple, 2001; ISBN 0817641505,
978-0817641504