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2022 13th National Conference with International Participation (ELECTRONICA)最新文献

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Helium Network - Integration of Blockchain Technologies in the Field of Telecommunications Helium Network——区块链技术在电信领域的集成
2022 13th National Conference with International Participation (ELECTRONICA) Pub Date : 2022-05-19 DOI: 10.1109/ELECTRONICA55578.2022.9874363
Pavel Dzhunev
{"title":"Helium Network - Integration of Blockchain Technologies in the Field of Telecommunications","authors":"Pavel Dzhunev","doi":"10.1109/ELECTRONICA55578.2022.9874363","DOIUrl":"https://doi.org/10.1109/ELECTRONICA55578.2022.9874363","url":null,"abstract":"Helium is a P2P decentralized global wireless network targeting the Internet of Things segment which uses its own protocol, blockchain and cryptocurrency Helium (HNT). By deploying a sufficient number of Helium Network devices in an urban agglomeration, ubiquitous high-speed wireless Internet access can be provided with the quality inherent in WiFi coverage.","PeriodicalId":443994,"journal":{"name":"2022 13th National Conference with International Participation (ELECTRONICA)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120995874","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}
引用次数: 2
Connectivity Negotiation as a Service in Future Railway Mobile Communications 未来铁路移动通信中的连接协商服务
2022 13th National Conference with International Participation (ELECTRONICA) Pub Date : 2022-05-19 DOI: 10.1109/ELECTRONICA55578.2022.9874410
V. Trifonov, I. Atanasov, E. Pencheva
{"title":"Connectivity Negotiation as a Service in Future Railway Mobile Communications","authors":"V. Trifonov, I. Atanasov, E. Pencheva","doi":"10.1109/ELECTRONICA55578.2022.9874410","DOIUrl":"https://doi.org/10.1109/ELECTRONICA55578.2022.9874410","url":null,"abstract":"Future Railway Mobile Communication System (FRMCS) is defined as a telecommunication system for the railway sector. It is considered as a key factor for rail digitalization. The challenging requirements of FRMCS applications for ultra-high reliability and availability, low latency, safety, and security can be satisfied by fifth generation (5G) mobile networks. Writing applications that use specific telecommunication protocol to access connectivity management functions provided by the 5G network elements requires a high degree of network expertise. This paper presents the design of RESTful Application Programming Interface (API) for dynamic connectivity negotiation. The API functionality is illustrated by typical uses cases, supported resources and data types. Modeling and implementation issues are discussed.","PeriodicalId":443994,"journal":{"name":"2022 13th National Conference with International Participation (ELECTRONICA)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125245139","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}
引用次数: 0
Fractional and Integer Order Chaotic System-based Pseudo Random Bit Generator for Secure Image Encryption 基于分数阶和整数阶混沌系统的伪随机比特发生器用于安全图像加密
2022 13th National Conference with International Participation (ELECTRONICA) Pub Date : 2022-05-19 DOI: 10.1109/ELECTRONICA55578.2022.9874397
E. Ince, B. Karakaya, M. Türk
{"title":"Fractional and Integer Order Chaotic System-based Pseudo Random Bit Generator for Secure Image Encryption","authors":"E. Ince, B. Karakaya, M. Türk","doi":"10.1109/ELECTRONICA55578.2022.9874397","DOIUrl":"https://doi.org/10.1109/ELECTRONICA55578.2022.9874397","url":null,"abstract":"This paper presents an implementation of continuous-time chaotic system-based pseudo random bit generation by using fractional order Chen-Lee and integer order Lorenz systems. Since chaotic systems are very popular in random bit generator applications, both fractional and integer order chaotic systems are used in the proposed design. The electronic circuit equivalence of chaotic systems are designed and simulated in Orcad-Pspice environment to use as an entropy source to the proposed a new post-processor algorithm. The generated random bit stream is tested by using NIST 800.22 statistical test suite to demonstrate the randomness of the proposed system statistically. Also, an image encryption application is executed using a pseudo random bit stream. The results of the statistical tests and image encryption show that the proposed pseudo random bit generator is suitable and can be preferred in secure image/media transmission/communication systems.","PeriodicalId":443994,"journal":{"name":"2022 13th National Conference with International Participation (ELECTRONICA)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126327827","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}
引用次数: 0
Using of Batteryless LoRaWAN Ultrasonic Sensor Node for Smart Garbage Collection 无电池LoRaWAN超声传感器节点在智能垃圾收集中的应用
2022 13th National Conference with International Participation (ELECTRONICA) Pub Date : 2022-05-19 DOI: 10.1109/ELECTRONICA55578.2022.9874361
Stanislav Asenov, D. Tokmakov
{"title":"Using of Batteryless LoRaWAN Ultrasonic Sensor Node for Smart Garbage Collection","authors":"Stanislav Asenov, D. Tokmakov","doi":"10.1109/ELECTRONICA55578.2022.9874361","DOIUrl":"https://doi.org/10.1109/ELECTRONICA55578.2022.9874361","url":null,"abstract":"This paper presents the use of a batteryless LoRaWAN ultrasonic sensor node for the realization of LoRaWAN based smart garbage collection, to be deployed for waste management in the Smart Cities context. In particular, the paper presents the possibility of using LoRaWAN waterproof ultrasonic sensor nodes powered by solar harvester systems to measure the level of waste in the waste bin and to cut harmful emissions from garbage trucks by reducing thier fuel consumption and in this way the frequency of the waste collection procedure.","PeriodicalId":443994,"journal":{"name":"2022 13th National Conference with International Participation (ELECTRONICA)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127865588","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}
引用次数: 3
Common Issues Affecting PV System Performance 影响光伏系统性能的常见问题
2022 13th National Conference with International Participation (ELECTRONICA) Pub Date : 2022-05-19 DOI: 10.1109/ELECTRONICA55578.2022.9874407
Theodoros Petroglou, Lyudmila Taneva
{"title":"Common Issues Affecting PV System Performance","authors":"Theodoros Petroglou, Lyudmila Taneva","doi":"10.1109/ELECTRONICA55578.2022.9874407","DOIUrl":"https://doi.org/10.1109/ELECTRONICA55578.2022.9874407","url":null,"abstract":"Over the last few years more and more failures occur in old installed systems many of which could have been avoided. The main problem studied in this paper is the unexpected reduction of electricity production in photovoltaic parks after a few years of operation. In many photovoltaic parks the performance ratio (PR) has fallen below 80% while normally it should be a little over 90%. This reduction in energy production leads to an increase in the payback period of investment. This paper will also explore the causes of reduced production and ways to recover from the problems as well as improvements that can be made to increase energy production and reduce maintenance costs. Firstly, the basic theoretical concepts are presented and in the next part, the paper throws new light on the problems which occurred and the existing methods of their resolution.","PeriodicalId":443994,"journal":{"name":"2022 13th National Conference with International Participation (ELECTRONICA)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115229798","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}
引用次数: 0
Comparison of Bi-level and Nonlinear Optimization for Urban Traffic Control 城市交通控制双层次优化与非线性优化的比较
2022 13th National Conference with International Participation (ELECTRONICA) Pub Date : 2022-05-19 DOI: 10.1109/ELECTRONICA55578.2022.9874409
K. Stoilova, T. Stoilov
{"title":"Comparison of Bi-level and Nonlinear Optimization for Urban Traffic Control","authors":"K. Stoilova, T. Stoilov","doi":"10.1109/ELECTRONICA55578.2022.9874409","DOIUrl":"https://doi.org/10.1109/ELECTRONICA55578.2022.9874409","url":null,"abstract":"The goal of this research is to improve the traffic behavior at crossroads of the urban network by decreasing the waiting vehicles in the network. This goal is achieved through bi-level optimization, which has significant advantages compared to classical optimization. The added value in this research is the analytical formalization of the optimization problem. The problem gives superiority to the values of the outgoing flows in comparison with the incoming traffic flow in each direction of the network, which results in the decrease of waiting vehicles. The research applies control rules of predictive control at each traffic light cycle by the bi-level optimization methodology. This enables additional adaptation of the green light and cycle durations to the traffic flows. The bi-level solutions are numerically evaluated and compared with the classical (one-criterion) optimization. The comparison demonstrates the advantages of bi-level optimization.","PeriodicalId":443994,"journal":{"name":"2022 13th National Conference with International Participation (ELECTRONICA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115618811","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}
引用次数: 0
Design and Experiments of a Pneumatic Powered Exoskeleton for Rehabilitation and Training 康复训练用气动外骨骼的设计与实验
2022 13th National Conference with International Participation (ELECTRONICA) Pub Date : 2022-05-19 DOI: 10.1109/ELECTRONICA55578.2022.9874414
D. Chakarov, I. Veneva, Pavel Venev, M. Tsveov
{"title":"Design and Experiments of a Pneumatic Powered Exoskeleton for Rehabilitation and Training","authors":"D. Chakarov, I. Veneva, Pavel Venev, M. Tsveov","doi":"10.1109/ELECTRONICA55578.2022.9874414","DOIUrl":"https://doi.org/10.1109/ELECTRONICA55578.2022.9874414","url":null,"abstract":"This paper presents the development of an exoskeleton of the upper limbs for training and rehabilitation. The aim is to develop and evaluate an exoskeleton that provides force feedback, transparency and safety. This work examines the structure and actuation of the arm. The proposed design with pneumatic drive allows the therapist to control the transparency and safety at all stages of the rehabilitation process. Simulations and evaluations of the patient-exoskeleton force are performed. The gravity compensation force and the force of elastic properties are evaluated herein. Transparency is assessed in different cases, depending on active or passive control modes. Finally, conclusions are and prospects for future work are given.","PeriodicalId":443994,"journal":{"name":"2022 13th National Conference with International Participation (ELECTRONICA)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129296557","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}
引用次数: 0
Device for Electrical Acupuncture Stimulation 电针刺激装置
2022 13th National Conference with International Participation (ELECTRONICA) Pub Date : 2022-05-19 DOI: 10.1109/ELECTRONICA55578.2022.9874427
I. Veneva, Pavel Venev, D. Chakarov, Georgi Katsarov
{"title":"Device for Electrical Acupuncture Stimulation","authors":"I. Veneva, Pavel Venev, D. Chakarov, Georgi Katsarov","doi":"10.1109/ELECTRONICA55578.2022.9874427","DOIUrl":"https://doi.org/10.1109/ELECTRONICA55578.2022.9874427","url":null,"abstract":"The aim of this paper is to present the design and development of a multi-electrode device for electrical acupuncture stimulation. The system includes a control unit and a multi-electrode matrix for stimulating various acupuncture points on the legs or arms by applying electrical impulses. A graphical interface with interactive communication has been created to adjust the strength and duration of electrical pulses. The designed system provides real-time visualization, adjustment and feedback, guiding the operator in the steps of the therapeutic procedure, which makes rehabilitation therapy more adaptable to the patient's personal characteristics without creating inconvenience.","PeriodicalId":443994,"journal":{"name":"2022 13th National Conference with International Participation (ELECTRONICA)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133615068","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}
引用次数: 0
Modeling of Small-Scale Hydrokinetic Turbine for Distributed Generation 分布式发电小型水动力水轮机建模
2022 13th National Conference with International Participation (ELECTRONICA) Pub Date : 2022-05-19 DOI: 10.1109/ELECTRONICA55578.2022.9874411
H. Kanchev, B. Gilev, N. Hinov
{"title":"Modeling of Small-Scale Hydrokinetic Turbine for Distributed Generation","authors":"H. Kanchev, B. Gilev, N. Hinov","doi":"10.1109/ELECTRONICA55578.2022.9874411","DOIUrl":"https://doi.org/10.1109/ELECTRONICA55578.2022.9874411","url":null,"abstract":"In this paper is presented the mathematical modelling of a small-scale hydrokinetic generator. The system consists of a turbine, permanent magnet synchronous generator, DC-DC converter, a single phase grid-connected inverter. The control system of the model has two loops - one for maximum power point tracking of the generator and a second one for control of the power exchanged with the grid. The model is implemented in Matlab/Simulink environment and is validated by simulations with various changes in the water stream speed. The developed model can be further implemented in simulations of microgrids with distributed generation and storage.","PeriodicalId":443994,"journal":{"name":"2022 13th National Conference with International Participation (ELECTRONICA)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130626661","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}
引用次数: 0
Study of Power GaN MOSFET Gate Drivers 功率GaN MOSFET栅极驱动器的研究
2022 13th National Conference with International Participation (ELECTRONICA) Pub Date : 2022-05-19 DOI: 10.1109/ELECTRONICA55578.2022.9874434
D. Dankov, Petko Marinov
{"title":"Study of Power GaN MOSFET Gate Drivers","authors":"D. Dankov, Petko Marinov","doi":"10.1109/ELECTRONICA55578.2022.9874434","DOIUrl":"https://doi.org/10.1109/ELECTRONICA55578.2022.9874434","url":null,"abstract":"This paper discusses the properties and characteristics of two driver circuits for GaN MOSFET transistors. A study deals with driver circuits in terms of the fast switching performance of three types of MOSFET transistors: GaN, SiC and Si, and in terms of the efficiency of the driver circuits in the frequency range up to 1 MHz.","PeriodicalId":443994,"journal":{"name":"2022 13th National Conference with International Participation (ELECTRONICA)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131971826","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}
引用次数: 0
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