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Electric meter simulator with DLMS protocol
Tsymbal, Kateryna ; Gerlich, Tomáš (referee) ; Lieskovan, Tomáš (advisor)
This bachelor thesis is focused on getting acquainted with the DLMS/COSEM protocol and its functions. Furthermore, the Java programming language and the Raspberry Pi minicomputer are briefly introduced. The DLMS/COSEM protocol is used to simulate measurements using a smart meter, which ensures communication between the meter simulator and the concentrator. Communication provided by the DLMS/COSEM protocol is widely used in smart grids. The first part of the thesis discusses important information about energy networks and their relationship with smart meters, the importance of smart meters in modern networks and the role of smart networks, which are used for effective energy measurement in a particular area (e.g. for measuring electricity). Data measured in smart grids can be easily analyzed and used to make consumption more effective. The first part also mentions important information about the DLMS/COSEM protocol, the Java programming language and the Raspberry Pi minicomputer. In the second part of the thesis, a test environment is created for testing the smart meter simulator, which communicates using the DLMS/COSEM protocol with the concentrator and transmits the measured values to it. Measured values are manually defined for testing purposes using code changes in the Eclipse IDE. The aim of the work was to create a smart meter simulator that lists predefined values and passes them to the concentrator, which was achieved using the Gurux.DLMS library. Finally, an analysis of this communication was performed using Wireshark. This bachelor thesis is useful for a simple understanding of the DLMS/COSEM protocol and its use in smart grids.
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Smart Metering of Water Supply System at Campus of Faculty of Civil Engineering BUT
Černíková, Eva ; Ručka, Jan (referee) ; Tuhovčák, Ladislav (advisor)
The aim of this thesis is to perform an analysis of possibilities and benefits of installing the Smart Water Metering technology at campus of Faculty of Civil Engineering, Brno University of Technology. The main goal was to provide specific solutions of Smart Metering systems from different companies. One part of this thesis is dedicated to a detailed analysis of a water consumption measurement campaign that took place at the beginning of this academic year using dataloggers. Real-time flow rate and consumed volume was recorded every five minutes. Therefore it was possible to determine water consumption patterns during the day and also tell the minimum, maximum and average flow rate in different parts of the campus. Thanks to these measurements, irregular water consumption during the night was observed. This would not have been easily detected without recording real-time data. This system of recording real-time flow rates with dataloggers is considered to be suitable for the needs of faculty. Thanks to a GSM module, recorded values are sent to an FTP server once a day. From there the data can be downloaded to any kind of analysis software. Installation of Smart Water Metering technology at campus of Faculty of Civil Engineering would be beneficial for both operation of the water supply network and also for purposes of an academic research.
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Analyses of the breaker/limiter functions for low voltage supply points
Bajánková, Denisa ; Toman, Petr (referee) ; Topolánek, David (advisor)
The diploma thesis provides an insight into the remote control and disconnection of DSO supply points phenomenon. The remote or local disconnection/connection of supply point is allowed by the breaker function. The automatic disconnection of supply point is enabled by the limiter function. Due to the anticipated implementation of smart meters in the Czech Republic in the future, this work contains the comprehensive description of breaker/limiter function with proposed possibilities of use in the Czech Republic. The thesis deals with the current breaker/limiter function use in the Czech Republic and in other countries. It introduces the smart meter installation in pilot projects to analyze the breaker/limiter function use in other countries. The thesis is focused on the technical solution of breaker/limiter. Moreover, it describes the ways of connecting the breaker, settting the limiter, connecting/disconnecting a supply point and breaker operation. Further, the thesis introduces the ways of activating the breaker by a customer and defines in which cases it is possible to limit and interrupt the electricity supply in the Czech Republic currently. The main aim of thesis is to describe the specific possibilities of breaker/limiter function use in the Czech Republic. With regard to the function use in other countries and the limiting or interrupting the electricity supply by DSO according to energy law, the possibilities of use are proposed. Each possibility of use is analyzed when implementing the breaker function or the breaker/limiter function. The benefits are defined for a DSO and for a customer. The proposed uses are evaluated in terms of applicability and valid legislation in the Czech Republic. The result of this work is the summary of information about breaker/limiter function which is one of the new features in the implementation of smart metering. The function installation and the implementation of possibilities described in the thesis depends on the DSO decision.
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DLMS/COSEM load generator
Kohout, David ; Mlýnek, Petr (referee) ; Lieskovan, Tomáš (advisor)
This work is focused on Smart Metering, specifically the DLMS/COSEM specification. The paper describes most important parts of the standard and its application in smart grids. At first the DLMS protocol is examined. It is responsible for everything related in communication between clients and servers. Next described think is object model COSEM and its objects called OBIS. It shows how can we reference to these objects. In the second part – Traffic analyser are shown options of analysis of DLMS messages. This is after used for monitoring purposes. There is also described network topology including laboratory equipment. All devices were used for developing and testing the load generator of DLMS messages. App, which was created for this work is then described. The paper also assesses found problems in security and implementation of DLMS protocol.
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DLMS concentrator simulator
Buš, Ondřej ; Šilhavý, Pavel (referee) ; Lieskovan, Tomáš (advisor)
This work is focused on a field of smart metering and data concentrators. The first part of this paper describes the DLMS/COSEM specification. The first section contains DLMS protocol specification, the process of communication between devices and services that allows data communication. COSEM classes and objects can be found in the second section. These objects are used to access a specific data stored inside smart meters. Lastly, there is an section that is focused on OBIS objects which are used for addressing. In the second part, the concentrator's basic functionalities are described. These functionalities include device management and configuration file storage. The last part then focuses on a web server. The web server allows a user to manage the concentrator by adding, editing and removing connected smart meters.
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M-Bus in building automation
Sluka, Filip ; Vojáček, Zdeněk (referee) ; Marada, Tomáš (advisor)
This thesis is about the M-Bus (Meter Bus), which is the industrial bus for the energy consumption data and the state values transmission in the building automation systems. This document describes signal transmission principle, M-Bus protocol, network topology, the types of components, the M-Bus wireless version and also provides summary of the M-Bus technology and the comparison with its alternatives.
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Smart meter simulation on KYPO platform
Morawiec, Daniel ; Gerlich, Tomáš (referee) ; Lieskovan, Tomáš (advisor)
This bachelor thesis is focused on problematics of smart grids, smart meters and protocols which are used in the energy industry. The part of thesis is dedicated to DLMS protocol and COSEM specification. Cloud platform OpenStack and cyber range platforms, more specifically KYPO CRP, are subsequently described in this work. In the last part of the bachelor thesis deployment of platforms OpenStack and KYPO CRP is executed and testing scenario with common elements of energy networks is commissioned on the platform KYPO.
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The Impact of Media on Consumer Behaviour in the Energy Sector
Sedláček, Štěpán ; Hála, Tomáš (referee) ; Langerová, Petra (referee) ; Šedrlová, Magdalena (advisor)
This bachelor thesis deals with the analysis of the aspects that prevent or allow the integration of the principles of social networks into the system of smart meters as well as the study of their potential and possibilities of implementation. The issue of how the future smart grid consumer will benefit from the future smart city grid services are hot topics. Here, a survey is presented that focuses on these aspects. An analysis of the survey results and key messages identifies view of the people on the topic and proposes directions that may be followed when designing applications and services of residential smart city consumers.
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Design of a smart meter testing methodology focusing on invasive testing
Biolek, Martin ; Sikora, Marek (referee) ; Lieskovan, Tomáš (advisor)
Bachelor thesis is focused on investigating the security deficits of smart meters through penetration testing. The theoretical part describes the standards that should be followed by smart meter manufacturers. This is followed by the practical part where the testing of two smart meter systems was conducted in order to discover their vulnerabilities. The result of the work is the exposure of one of the two systems of interest that requires significant security improvements before deployment of another version. A description of the vulnerabilities is included in the practical part of the thesis.
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Remote measuring systems and its utilization in practise
Kukla, Zdeněk ; Škoda, Jan (referee) ; Baxant, Petr (advisor)
This master’s thesis is dealing with remote measuring systems and their utilization in power engineering. In the first part there are described requirements on an autonomous measuring system and description of AMM and AMR systems. Communicating and data flows working on accurately defined communicating layers are also depicted in this part. The attention is devoted to the possibility of data processing and functions of devices offered by these attributes. In the following part there are described reasons for utilization of remote measuring systems in power engineering and the main advantages of connection of more devices into one unit. After finding of required parametres and functions of systems, a suggestion of terminal device is created in the same way. The suggestion is described in the measuring part with A/D converter, processing in microprocessor, measuring and evaluating alogorithms and attributes of communication of bus used. The last part is devoted to utilization of remote analysis in small power stations in dispersed production. Formation of deformation of voltage, harmonic analysis of signal and its application for data processing are described there. Described analysis was tested on data acquired from a cogeneration unit.
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