The present work addresses the problem of the security of the data that are exchanged in the electric vehicle charging network. The main communication technologies for the exchange of information between electric vehicles and charging network elements are described. The structure of the charging network for electric vehicles is explored. The main attacks on which such a network would be subjected were considered. Different methods to secure the communication in electric vehicle charging networks are presented. The using of dark fibre for building a secure communication network has been proposed.
{"title":"Attacks and Security Measures of the Exchanged Information in the Charging Infrastructure for Electromobiles","authors":"Ivan Nedyalkov, Dimitar D. Arnaudov","doi":"10.1109/ET.2019.8878500","DOIUrl":"https://doi.org/10.1109/ET.2019.8878500","url":null,"abstract":"The present work addresses the problem of the security of the data that are exchanged in the electric vehicle charging network. The main communication technologies for the exchange of information between electric vehicles and charging network elements are described. The structure of the charging network for electric vehicles is explored. The main attacks on which such a network would be subjected were considered. Different methods to secure the communication in electric vehicle charging networks are presented. The using of dark fibre for building a secure communication network has been proposed.","PeriodicalId":306452,"journal":{"name":"2019 IEEE XXVIII International Scientific Conference Electronics (ET)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114622694","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}
Fuzzy set theory and Fuzzy logic propose bases for modeling, evaluation and optimization of tasks, events and processes in different areas. Recently, it has been utilized for the purpose of engineering education, giving possibilities for description of uncertain and complex systems leading to clear and precise results. This paper summarizes and analyzes applications of Fuzzy set theory and Fuzzy logic for improvement and automation of teaching and learning tasks. A model for utilization of Fuzzy apparatus in engineering educational practice is developed to facilitate educators and researchers in their everyday and unforeseen activities.
{"title":"Fuzzy Set Theory and Fuzzy Logic for Activities Automation in Engineering Education","authors":"M. Ivanova","doi":"10.1109/ET.2019.8878622","DOIUrl":"https://doi.org/10.1109/ET.2019.8878622","url":null,"abstract":"Fuzzy set theory and Fuzzy logic propose bases for modeling, evaluation and optimization of tasks, events and processes in different areas. Recently, it has been utilized for the purpose of engineering education, giving possibilities for description of uncertain and complex systems leading to clear and precise results. This paper summarizes and analyzes applications of Fuzzy set theory and Fuzzy logic for improvement and automation of teaching and learning tasks. A model for utilization of Fuzzy apparatus in engineering educational practice is developed to facilitate educators and researchers in their everyday and unforeseen activities.","PeriodicalId":306452,"journal":{"name":"2019 IEEE XXVIII International Scientific Conference Electronics (ET)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117287944","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}
The Li-Fi technology provides new way of data transfer with high speed and different priority on networks. As a license free, high speed, bidirectional and secure wireless access, Li-Fi is an additional building block for fifth generation (5G) mobile networks. Li-Fi networks provides the Handover procedure. In this paper is proposed a simulation indoor system for realization of the Handover in Li-Fi, which realizes the subscribers mobility, prioritizes the different types of traffic and reorders the resource blocks on the Subscribers after the prioritization, has been done. The implemented prioritization mechanism is used to study and improve QoS parameters in Li-Fi networks.
{"title":"Simulation Framework for Realization of Horizontal Handover in Li-Fi Indoor Network","authors":"D. Dinev","doi":"10.1109/ET.2019.8878509","DOIUrl":"https://doi.org/10.1109/ET.2019.8878509","url":null,"abstract":"The Li-Fi technology provides new way of data transfer with high speed and different priority on networks. As a license free, high speed, bidirectional and secure wireless access, Li-Fi is an additional building block for fifth generation (5G) mobile networks. Li-Fi networks provides the Handover procedure. In this paper is proposed a simulation indoor system for realization of the Handover in Li-Fi, which realizes the subscribers mobility, prioritizes the different types of traffic and reorders the resource blocks on the Subscribers after the prioritization, has been done. The implemented prioritization mechanism is used to study and improve QoS parameters in Li-Fi networks.","PeriodicalId":306452,"journal":{"name":"2019 IEEE XXVIII International Scientific Conference Electronics (ET)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121417257","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}
T. Todorova, Dimitar Damyanov Arnaudo, Krasimir Kishkin, Nikolay Hinov
The paper presents an examination of the operation of a single switch isolated resonant DC-DC converter. The converter is intended for charging low voltage energy storage elements, such as supercapacitors. The investigation of the converter is performerd with respect to different constructions of the high-frequency transformer. Two constructions are regarded – one having sectioned windings arrangements and one having interleaved winding arrangements. The obtained results demonstrate that the latter construction improves the efficiency of the converter.
{"title":"Study of the operating modes of a DC-DC converter with different designs of the high frequency transformer","authors":"T. Todorova, Dimitar Damyanov Arnaudo, Krasimir Kishkin, Nikolay Hinov","doi":"10.1109/ET.2019.8878602","DOIUrl":"https://doi.org/10.1109/ET.2019.8878602","url":null,"abstract":"The paper presents an examination of the operation of a single switch isolated resonant DC-DC converter. The converter is intended for charging low voltage energy storage elements, such as supercapacitors. The investigation of the converter is performerd with respect to different constructions of the high-frequency transformer. Two constructions are regarded – one having sectioned windings arrangements and one having interleaved winding arrangements. The obtained results demonstrate that the latter construction improves the efficiency of the converter.","PeriodicalId":306452,"journal":{"name":"2019 IEEE XXVIII International Scientific Conference Electronics (ET)","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121073207","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}
Fifth generation (5G) mobile system is designed to support mission critical communications which requires significantly reduced delays and high reliability. Multi-access Edge Computing (MEC) technology, as a key component of 5G, may satisfy the strong requirements for network resilience and latency. The most benefit from the advantages of MEC may be achieved in case of MEC deployment as close as to the network edge. In this paper, we consider two MEC deployment scenarios for mission critical communications, and estimate the latency introduced by the control plane in provisioning of real time radio network information.
{"title":"On Latency at the Network Edge for Mission Critical Applications","authors":"I. Atanasov, E. Pencheva, D. Velkova, V. Trifonov","doi":"10.1109/ET.2019.8878642","DOIUrl":"https://doi.org/10.1109/ET.2019.8878642","url":null,"abstract":"Fifth generation (5G) mobile system is designed to support mission critical communications which requires significantly reduced delays and high reliability. Multi-access Edge Computing (MEC) technology, as a key component of 5G, may satisfy the strong requirements for network resilience and latency. The most benefit from the advantages of MEC may be achieved in case of MEC deployment as close as to the network edge. In this paper, we consider two MEC deployment scenarios for mission critical communications, and estimate the latency introduced by the control plane in provisioning of real time radio network information.","PeriodicalId":306452,"journal":{"name":"2019 IEEE XXVIII International Scientific Conference Electronics (ET)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125429601","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}
Nikola Vasilev, Zheni Mincheva, V. Nikolov, K. Bliznakova
The main goal of this paper is to create a methodology for generation of synthetic 3D model from a digitalized x-ray photo. Three-dimensional perspective gives more detailed and sophisticated in depth for analyzing different irregular lesions. In this research, the application is for detection and analysis in mammography realism.
{"title":"A Software Module for Generating a Synthetic Model of the Breast from an X-Ray Image","authors":"Nikola Vasilev, Zheni Mincheva, V. Nikolov, K. Bliznakova","doi":"10.1109/ET.2019.8878495","DOIUrl":"https://doi.org/10.1109/ET.2019.8878495","url":null,"abstract":"The main goal of this paper is to create a methodology for generation of synthetic 3D model from a digitalized x-ray photo. Three-dimensional perspective gives more detailed and sophisticated in depth for analyzing different irregular lesions. In this research, the application is for detection and analysis in mammography realism.","PeriodicalId":306452,"journal":{"name":"2019 IEEE XXVIII International Scientific Conference Electronics (ET)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130130876","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}
Energy harvesting allows to harvest energy from the environment in order to enable elimination of the batteries from small electronic devices i.e. wireless sensor nodes. It allows autonomous operation for low-power sensor nodes. This paper presents a solar energy harvesting power supply for an environmental sensor node. For this purpose, the sensor node hardware and its current consumption are presented, the specifications and the calculations for its energy budget are explained. The energy harvesting power supply consists of a solar panel, dc-dc converter and a Li-ion battery shunt charger. The characteristics and power generation are measured and presented.
{"title":"Energy harvesting power supply for an autonomous environmental sensor node","authors":"D. Nikolov, Borislav Ganev, R. Rusev","doi":"10.1109/ET.2019.8878652","DOIUrl":"https://doi.org/10.1109/ET.2019.8878652","url":null,"abstract":"Energy harvesting allows to harvest energy from the environment in order to enable elimination of the batteries from small electronic devices i.e. wireless sensor nodes. It allows autonomous operation for low-power sensor nodes. This paper presents a solar energy harvesting power supply for an environmental sensor node. For this purpose, the sensor node hardware and its current consumption are presented, the specifications and the calculations for its energy budget are explained. The energy harvesting power supply consists of a solar panel, dc-dc converter and a Li-ion battery shunt charger. The characteristics and power generation are measured and presented.","PeriodicalId":306452,"journal":{"name":"2019 IEEE XXVIII International Scientific Conference Electronics (ET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129672918","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}
The paper describes MS Excel-based application implementing and graphically illustrating the process of dynamic analysis of combinational logic circuits. Numerous examples obtained by the application are presented in the paper. Details about the functions used for the implementation are given. The application is used in the educational process in the course “Synthesis and Analysis of Logic Circuits”, compulsory for Bachelors in the specialty “Computer Systems and Technologies” at the University of Ruse “Angel Kanchev”.
{"title":"MS Excel-Based Application for Dynamic Analysis of Combinational Logic Circuits Applied in the Educational Process","authors":"A. Borodzhieva","doi":"10.1109/ET.2019.8878633","DOIUrl":"https://doi.org/10.1109/ET.2019.8878633","url":null,"abstract":"The paper describes MS Excel-based application implementing and graphically illustrating the process of dynamic analysis of combinational logic circuits. Numerous examples obtained by the application are presented in the paper. Details about the functions used for the implementation are given. The application is used in the educational process in the course “Synthesis and Analysis of Logic Circuits”, compulsory for Bachelors in the specialty “Computer Systems and Technologies” at the University of Ruse “Angel Kanchev”.","PeriodicalId":306452,"journal":{"name":"2019 IEEE XXVIII International Scientific Conference Electronics (ET)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124070071","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}
In the present paper we have studied the impedance dependence of resistive and three different capacitive structures printed with Inkjet technology. We have studied the impedance variation at different frequencies ranging from 100Hz to 200kHz. The results obtained are described and analysed to find application of the structures for different types of sensors.
{"title":"Impedance Measurement of Inkjet Printed Planar Structures","authors":"E. Gieva, G. Nikolov, B. Nikolova, I. Ruskova","doi":"10.1109/ET.2019.8878607","DOIUrl":"https://doi.org/10.1109/ET.2019.8878607","url":null,"abstract":"In the present paper we have studied the impedance dependence of resistive and three different capacitive structures printed with Inkjet technology. We have studied the impedance variation at different frequencies ranging from 100Hz to 200kHz. The results obtained are described and analysed to find application of the structures for different types of sensors.","PeriodicalId":306452,"journal":{"name":"2019 IEEE XXVIII International Scientific Conference Electronics (ET)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127551539","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}
An original p+-n -p+ magnetotransistors for subsequent measurement of three orthogonal magnetic components using a common sensor region is presented. Collector coupling-arrangements are formed for obtaining the information about the full magnetic-field vector. The operation is determined by curvilinear trajectory of holes and Lorentz force deflection on them. The channel outputs are linear and magnetosensitivities reaches Sx≈25µA/T, Sy≈150µA/T and Sz≈345µA/T for device with accelerating field in the base. The cross-talk reaches about 3.0 % at inductionB ≤ 1T.
{"title":"Three-dimensional Field Sensing with Magnetotransistors","authors":"S. Lozanova, A. Ivanov, C. Roumenin","doi":"10.1109/ET.2019.8878505","DOIUrl":"https://doi.org/10.1109/ET.2019.8878505","url":null,"abstract":"An original p+-n -p+ magnetotransistors for subsequent measurement of three orthogonal magnetic components using a common sensor region is presented. Collector coupling-arrangements are formed for obtaining the information about the full magnetic-field vector. The operation is determined by curvilinear trajectory of holes and Lorentz force deflection on them. The channel outputs are linear and magnetosensitivities reaches Sx≈25µA/T, Sy≈150µA/T and Sz≈345µA/T for device with accelerating field in the base. The cross-talk reaches about 3.0 % at inductionB ≤ 1T.","PeriodicalId":306452,"journal":{"name":"2019 IEEE XXVIII International Scientific Conference Electronics (ET)","volume":"1122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134484945","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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