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Server load monitoring
Fišer, Martin ; Čejka, Rudolf (referee) ; Dytrych, Jaroslav (advisor)
The goal of this thesis is to design and implement a new system that will perform the server load monitoring and will be part of the KNOTIS information system. This thesis analyzes the problems of the server load monitoring system already implemented in KNOTIS. The entire new load monitoring system is based on data collecting, which is performed periodically on all servers where the monitoring is currently running. The collected data is checked and then stored in the database. Presentation of these data is made by creating clear graphs and tables that are plotted on the new KNOTIS pages that were also created as part of this thesis. The new system has been deployed and has been proven to significantly save overhead and database space.
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Intelligent Recognition of the Smartphone User's Activity
Pustka, Michal ; Goldmann, Tomáš (referee) ; Drahanský, Martin (advisor)
This thesis deals with real-time human activity recognition (eg, running, walking, driving, etc.) using sensors which are available on current mobile devices. The final product of this thesis consists of multiple parts. First, an application for collecting sensor data from mobile devices. Followed by a tool for preprocessing of collected data and creation of a data set. The main part of the thesis is the design of convolutional neural network for activity classification and subsequent use of this network in an Android mobile application. The combination of previous parts creates a comprehensive framework for detection of user activities. Finally, some interesting experiments were made and evaluated (eg, the influence of specific sensors on detection precision).
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A New Generation of an IPFIX Collector
Huták, Lukáš ; Žádník, Martin (referee) ; Wrona, Jan (advisor)
This master's thesis addresses processing of flow monitoring records from a point of view of an IPFIX collector. It analysis the current solution of the modular collector, which went through considerable historical development, and focuses on revealing its strengths and weaknesses. Based on acquired knowledge, a new collector is designed. The new solution, which significantly modifies individual components for processing of flow records, focuses on high throughput and adds missing functionalities. The document also compares performance of both generations and the new collector clearly dominates.
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Design of datalogger for production machine
Gazda, Ondřej ; Kovář, Jiří (referee) ; Andrš, Ondřej (advisor)
This thesis describes the design of the data datalogger for collecting the operating data of the machine tool. Dataloggers and data acquisition systems are used in scientific research as well as in the industry for recording and analyzing large amounts of data. The control unit of the proposed system is the National Instruments CompactRIO platform. System software is created in the LabVIEW programming environment and uses both the FPGA circuit and the real-time processor of the control unit. Measured data are stored on the unit and in the database. The measurement status is reported via email.
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Design and realization of the measuring amplifier of mechanical quantities
Kaplan, Tomáš ; Chalupa, Jan (referee) ; Krejčí, Petr (advisor)
Subject of this effort is development and realization of one-channel data acquisition unit of mechanical quantities and it’s PC software application. Usage of this data acquisition unit is aimed on applications, where resistive strain gages wired as Wheatstone bridge with AC excitation are used. Output voltage of Wheatstone bridge is amplięed, demodulated with excitation voltage, filtered and level shifted for analog to digital conversion via AD converter. Converted digital data are sent via serial bus into microprocessor which sends them into PC for further meaningful representation in software application. Besides sensing bridge output voltage, data acquisition unit also generates AC excitation of Wheatstone bridge. This excitation voltage is generated via DA converter which communicates with microprocessor and converts incoming digital data into analog sine waveform. There is precise voltage reference circuitry for both of these converters. PC application’s task is to visualize measured data in meaningful form and to give tools for further work with measured data. It’s programmed in Python language and it has one independent thread which does reading and computing of incoming data and there is also class which builds graphical user interface and plots measured data into live graph.
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Using the Arduino module to manage the physical model of the MVE
Perout, Miroslav ; Vrána, Michal (referee) ; Radil, Lukáš (advisor)
This bachelor thesis is focused on acquaintance with the model of MVE and creation of a proposal of the structure of management on the basis of the obtained information. In the first step, the differences in the generators used are described and explained. Subsequently, according to the parameters of the measured system, individual measuring elements and modules are designed to send information to the selected microprocessor. In the last step, the issue of creating visualization software through the Processing environment is discussed.
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Data storage architecture for manufacturing processes
Bobák, Petr ; Kaczmarczyk, Václav (referee) ; Holek, Radovan (advisor)
The aim of the thesis is to develop a concept of an information system for collecting and processing data from an industrial process, which will be a part of a complex monitoring system as a whole chain from the sensor to the information system. The thesis briefly describes decision making process of a HMI device selection – Weintek cMT-SVR-100 visualization server, which is able to transfer data acquired from PLC’s via Modbus TCP over Ethernet to a remote MySQL database in the internet. Its main properties and output data structure was described. The thesis presents data and process model of the database and a web application design as a user interface. The web app allows users to access the system via general web browser at any platform and/or device. The thesis also presents testing of the system and its results.
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