Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094141
Dijana Vukovic Grbic, Igor Dujlovic
In this paper we are presenting a possibility of using ChatGPT for preparing environments for executing social engineering based attacks. Very soon after public launching, ChatGPT has shown excellent results in many different topics, answering some general or specific questions, generating code or preparing text templates of even texts on specific topics. Combining those possibilities and good preparedness of the system, it is possible to get everything that is needed for phishing or some other attack only in a few clicks and in a couple of minutes. This paper covers the scenario of creating phishing attack using ChatGPT, with an overview of social engineering attacks and their prevention in general.
{"title":"Social engineering with ChatGPT","authors":"Dijana Vukovic Grbic, Igor Dujlovic","doi":"10.1109/INFOTEH57020.2023.10094141","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094141","url":null,"abstract":"In this paper we are presenting a possibility of using ChatGPT for preparing environments for executing social engineering based attacks. Very soon after public launching, ChatGPT has shown excellent results in many different topics, answering some general or specific questions, generating code or preparing text templates of even texts on specific topics. Combining those possibilities and good preparedness of the system, it is possible to get everything that is needed for phishing or some other attack only in a few clicks and in a couple of minutes. This paper covers the scenario of creating phishing attack using ChatGPT, with an overview of social engineering attacks and their prevention in general.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116607024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094075
Tijana Begović, Nikola Kukrić, S. Lubura
Embedded systems are widely used in different spheres of everyday life. Implementation of web server into these systems enable remote access to processed data. Web server implementation should be suitable for limited resources of these systems. In this paper, web server implementation in system for air parameter monitoring will be presented. This implementation is done using LwIP stack and enables remote access to measurement results within local network. Operation principle of web server and whole system will be discussed.
{"title":"HTTP web server implementation in air parameters monitoring system","authors":"Tijana Begović, Nikola Kukrić, S. Lubura","doi":"10.1109/INFOTEH57020.2023.10094075","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094075","url":null,"abstract":"Embedded systems are widely used in different spheres of everyday life. Implementation of web server into these systems enable remote access to processed data. Web server implementation should be suitable for limited resources of these systems. In this paper, web server implementation in system for air parameter monitoring will be presented. This implementation is done using LwIP stack and enables remote access to measurement results within local network. Operation principle of web server and whole system will be discussed.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123549174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094103
Aleksa Komosar, Sara Kijanovic
Open data is a powerful resource for the development of the public finance sector, creating an open, transparent, and democratic society. By innovating in the technical field with the help of open data, the added value of services and products is created not only in the public but also in the private sector. The focus of the paper is on the public sector of finances, where with the help of open data a high degree of transparency is achieved, which is realized through cases of the use of open data. The paper provides an overview of good practices at the state levels of Estonia, Ireland, Slovenia and Serbia, with comments on the achieved results based on reports from world portals and organizations dealing with the development of open data initiatives in the public finance sector.
{"title":"Research on the Application of Open Data in the Public Finance Sector","authors":"Aleksa Komosar, Sara Kijanovic","doi":"10.1109/INFOTEH57020.2023.10094103","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094103","url":null,"abstract":"Open data is a powerful resource for the development of the public finance sector, creating an open, transparent, and democratic society. By innovating in the technical field with the help of open data, the added value of services and products is created not only in the public but also in the private sector. The focus of the paper is on the public sector of finances, where with the help of open data a high degree of transparency is achieved, which is realized through cases of the use of open data. The paper provides an overview of good practices at the state levels of Estonia, Ireland, Slovenia and Serbia, with comments on the achieved results based on reports from world portals and organizations dealing with the development of open data initiatives in the public finance sector.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124092863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094169
L. Tarjan, I. Šenk, Miloš Stanojević, Mladen Babić, Dragan Jovanović, Dejan Rikić, Tegeltija Srđan
Due to the constant increase in the number of inhabitants in cities, the number of cars inevitably increases, which contributes to the creation of ever-increasing traffic jams. These traffic jams culminate at particular times of the day on specific road routes and junctions. One of the ways to regulate traffic at intersections is the use of traffic lights, and the operation of traffic lights for different traffic intensities is generally corrected by setting various modes of operation of traffic lights in which the duration of green and red lights change. This paper examines the possibility of applying an algorithm to optimize traffic light operation in real time based on the current traffic frequency measured by inductive traffic counting loops. The algorithm was tested on a simulator developed for this need based on real intersections in a city.
{"title":"Simulation of the traffic light optimization algorithm based on the current traffic frequency","authors":"L. Tarjan, I. Šenk, Miloš Stanojević, Mladen Babić, Dragan Jovanović, Dejan Rikić, Tegeltija Srđan","doi":"10.1109/INFOTEH57020.2023.10094169","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094169","url":null,"abstract":"Due to the constant increase in the number of inhabitants in cities, the number of cars inevitably increases, which contributes to the creation of ever-increasing traffic jams. These traffic jams culminate at particular times of the day on specific road routes and junctions. One of the ways to regulate traffic at intersections is the use of traffic lights, and the operation of traffic lights for different traffic intensities is generally corrected by setting various modes of operation of traffic lights in which the duration of green and red lights change. This paper examines the possibility of applying an algorithm to optimize traffic light operation in real time based on the current traffic frequency measured by inductive traffic counting loops. The algorithm was tested on a simulator developed for this need based on real intersections in a city.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124235595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094132
S. Zaharieva, I. Stoev, A. Borodzhieva, Teodora Petrova
An electronic system for providing comfortable conditions in a room based on the Internet of Things has been developed, which measures temperature, relative humidity, barometric pressure and illumination. The object of statistical evaluation is the relative humidity sensors, which are positioned inside the room and are thirty-two in number, to reserve and prevent the loss of data. The data for the relative humidity from the sensors are recorded twenty-four hours, every minute. Since the reading period is too long, the use of calibrated relative humidity meters is financially uneconomical. This necessitates the implementation of the algorithm of work of the developed electronic system of two statistical approaches to estimate the gross errors and the synchronicity of the readings between the available sensors at a specific point. Thus, if one of the sensors stops reading or if its readings differ significantly from those of the others, the sensor is ignored.
{"title":"Assessment of Gross Errors and Uniformity of Readings of Sensors for Relative Humidity Measurement in Indoor Premises","authors":"S. Zaharieva, I. Stoev, A. Borodzhieva, Teodora Petrova","doi":"10.1109/INFOTEH57020.2023.10094132","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094132","url":null,"abstract":"An electronic system for providing comfortable conditions in a room based on the Internet of Things has been developed, which measures temperature, relative humidity, barometric pressure and illumination. The object of statistical evaluation is the relative humidity sensors, which are positioned inside the room and are thirty-two in number, to reserve and prevent the loss of data. The data for the relative humidity from the sensors are recorded twenty-four hours, every minute. Since the reading period is too long, the use of calibrated relative humidity meters is financially uneconomical. This necessitates the implementation of the algorithm of work of the developed electronic system of two statistical approaches to estimate the gross errors and the synchronicity of the readings between the available sensors at a specific point. Thus, if one of the sensors stops reading or if its readings differ significantly from those of the others, the sensor is ignored.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125400543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094183
Danijel Mijic, Miljan Sikimić, G. Vico, Miloš Ljubojević
Digital agriculture is seen as a potential solution for improving sustainability of agri-food systems, increasing the productivity, efficiency, while decreasing costs of production and negative impact on environment. Majority of developed countries have made significant efforts in digital transformation of agricultural sector to leverage the benefits of digital agriculture. However, developing countries are still lagging and have only made modest steps in this direction. This paper gives an insight into some elements of digitalization of agriculture in Bosnia and Herzegovina, with focus on several digital solutions developed for small farmers. Although these small-scale solutions are developed with very limited resources, they are successfully used by small farmers to solve their real-world problems.
{"title":"Towards Digital Agriculture in Bosnia and Herzegovina: Digital Solutions for Small Farmers","authors":"Danijel Mijic, Miljan Sikimić, G. Vico, Miloš Ljubojević","doi":"10.1109/INFOTEH57020.2023.10094183","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094183","url":null,"abstract":"Digital agriculture is seen as a potential solution for improving sustainability of agri-food systems, increasing the productivity, efficiency, while decreasing costs of production and negative impact on environment. Majority of developed countries have made significant efforts in digital transformation of agricultural sector to leverage the benefits of digital agriculture. However, developing countries are still lagging and have only made modest steps in this direction. This paper gives an insight into some elements of digitalization of agriculture in Bosnia and Herzegovina, with focus on several digital solutions developed for small farmers. Although these small-scale solutions are developed with very limited resources, they are successfully used by small farmers to solve their real-world problems.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114616941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094109
K. Lobkov, Dmitrij Eremeev, A. Rubinskaya, Elena Melnikova, I. Panfilov
In this article the program for simulation of "PowerSim" was used. It built a simulation-dynamic model to measure the impact of natural disasters on people and migration levels. Three types of natural disasters were considered: hurricane, fire and earthquakes. The necessary constants for the operation of models have been identified, as well as models of the impact of various natural disasters on urban damage have been built. General models have been developed to illustrate the groups of factors influencing the destruction of the housing sector, including the population sector. For the ability to change results, constant switches were added to regulate earthquake severity, fire severity and hurricane strength. A graph has been constructed that can be used to visualize the number of destroyed houses from various natural disasters. The results were analyzed, on the basis of which four graphs were constructed: percentage of population growth, population, population, proportion of built-up land, in addition to graphs: table of calculation and emigration. In the course of the work, it was determined that the model was suitable for calculating the population size taking into account natural disasters.
{"title":"Determination of the Degree of Impact of Natural Disasters on the Level of Migration of the Population by Simulation Modelling","authors":"K. Lobkov, Dmitrij Eremeev, A. Rubinskaya, Elena Melnikova, I. Panfilov","doi":"10.1109/INFOTEH57020.2023.10094109","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094109","url":null,"abstract":"In this article the program for simulation of \"PowerSim\" was used. It built a simulation-dynamic model to measure the impact of natural disasters on people and migration levels. Three types of natural disasters were considered: hurricane, fire and earthquakes. The necessary constants for the operation of models have been identified, as well as models of the impact of various natural disasters on urban damage have been built. General models have been developed to illustrate the groups of factors influencing the destruction of the housing sector, including the population sector. For the ability to change results, constant switches were added to regulate earthquake severity, fire severity and hurricane strength. A graph has been constructed that can be used to visualize the number of destroyed houses from various natural disasters. The results were analyzed, on the basis of which four graphs were constructed: percentage of population growth, population, population, proportion of built-up land, in addition to graphs: table of calculation and emigration. In the course of the work, it was determined that the model was suitable for calculating the population size taking into account natural disasters.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129851158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094110
V. Helac, S. Hanjalic, S. Grebović, V. Becirovic
The increase in the number of wind farms and their share in the total electrical energy generation leads to the need for a different approach to this source in cases where the stability of the power system is potentially impaired. With the development of different types of wind power plants, equipped with power electronics devices, there is the possibility of quick power management and injection, in conditions when it is needed, where a huge amount of accumulated kinetic energy can also be used. This paper presents the influence of a wind power plant equipped with a full-scale converter on the transient stability in cases of close and distant short circuits, during the outage of a heavily loaded line. Special attention was paid to the Rate of Change of Frequency (RoCoF) in the power system in cases with and without a wind farm where fast power injections were possible.
{"title":"Contribution of Wind Power Plants to Transmission System Transient Stability","authors":"V. Helac, S. Hanjalic, S. Grebović, V. Becirovic","doi":"10.1109/INFOTEH57020.2023.10094110","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094110","url":null,"abstract":"The increase in the number of wind farms and their share in the total electrical energy generation leads to the need for a different approach to this source in cases where the stability of the power system is potentially impaired. With the development of different types of wind power plants, equipped with power electronics devices, there is the possibility of quick power management and injection, in conditions when it is needed, where a huge amount of accumulated kinetic energy can also be used. This paper presents the influence of a wind power plant equipped with a full-scale converter on the transient stability in cases of close and distant short circuits, during the outage of a heavily loaded line. Special attention was paid to the Rate of Change of Frequency (RoCoF) in the power system in cases with and without a wind farm where fast power injections were possible.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130691935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094115
V. Helac, S. Hanjalic, S. Grebović, V. Becirovic
The contribution of renewable energy sources to the power system stability will have to be greater in the future. The problem will arise if the share of wind power plants in total production increases and large failures occur. Then, wind farms, which are often called inertia-less sources in the literature, will have to help maintain the frequency in a normal amount by changing the management method and based on fast PMU measurements. This can be done by using the synthetic inertia size, which is defined for sources that are derived from the system via energy converters and which do not participate in defining the total inertia of the system. This paper provides a better insight into the understanding of the concept of synthetic inertia, as well as insight into the current development of management and the application of synthetic inertia in maintaining the stability of the power system.
{"title":"Synthetic Inertia in Wind Power Plants: An Overview","authors":"V. Helac, S. Hanjalic, S. Grebović, V. Becirovic","doi":"10.1109/INFOTEH57020.2023.10094115","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094115","url":null,"abstract":"The contribution of renewable energy sources to the power system stability will have to be greater in the future. The problem will arise if the share of wind power plants in total production increases and large failures occur. Then, wind farms, which are often called inertia-less sources in the literature, will have to help maintain the frequency in a normal amount by changing the management method and based on fast PMU measurements. This can be done by using the synthetic inertia size, which is defined for sources that are derived from the system via energy converters and which do not participate in defining the total inertia of the system. This paper provides a better insight into the understanding of the concept of synthetic inertia, as well as insight into the current development of management and the application of synthetic inertia in maintaining the stability of the power system.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130803965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-15DOI: 10.1109/INFOTEH57020.2023.10094080
B. Djordjevic, V. Timčenko, Nenad Kraljević, Iva Jovičić, Nikola Davidovic
This paper presents a performance comparison of the Type-2 hypervisor, using the VMware Workstation player, then the VirtualBox platform, and finally MS Hyper-V, as the virtualization role in Windows 10 Pro environment. The tests were performed under the same conditions and the same test method using HD Tune Pro tool. For the guest operating system, Windows 10 Pro was chosen as the basis for all testing phases. The performance of all three virtual platforms are compared for the cases with one, two and three virtual machines in operation. The tests were validated based on the results obtained using the benchmark program.
{"title":"Comparison of VMware Workstation, VirtualBox and MS Hyper-V hypervisor performance with MS Windows OS based guests","authors":"B. Djordjevic, V. Timčenko, Nenad Kraljević, Iva Jovičić, Nikola Davidovic","doi":"10.1109/INFOTEH57020.2023.10094080","DOIUrl":"https://doi.org/10.1109/INFOTEH57020.2023.10094080","url":null,"abstract":"This paper presents a performance comparison of the Type-2 hypervisor, using the VMware Workstation player, then the VirtualBox platform, and finally MS Hyper-V, as the virtualization role in Windows 10 Pro environment. The tests were performed under the same conditions and the same test method using HD Tune Pro tool. For the guest operating system, Windows 10 Pro was chosen as the basis for all testing phases. The performance of all three virtual platforms are compared for the cases with one, two and three virtual machines in operation. The tests were validated based on the results obtained using the benchmark program.","PeriodicalId":287923,"journal":{"name":"2023 22nd International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131076399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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