{"title":"Mobile Edge Service for D2D Communications","authors":"E. Pencheva, I. Atanasov","doi":"10.1109/ET.2018.8549598","DOIUrl":"https://doi.org/10.1109/ET.2018.8549598","url":null,"abstract":"Multi-access Edge Computing (MEC) which distributes cloud computing capabilities at the edge of radio access network is expected to be intrinsic part of future networks. MEC exposes great advantages in support of Device-to-Device (D2D) communication technology. In this paper, we present an approach to define a new mobile edge service, which enables applications to discover device proximity and initiate direct device communications. The proposed mobile edge service is described by typical use cases, the respective data model and interface definition. Some implementation aspects are discussed.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123721156","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}
D. Kolev, Velimira Dimitrova Todorova, Constantinos Tramantzas
{"title":"Problems when Harvesting Energy with Piezoelectric Beam Elements","authors":"D. Kolev, Velimira Dimitrova Todorova, Constantinos Tramantzas","doi":"10.1109/ET.2018.8549585","DOIUrl":"https://doi.org/10.1109/ET.2018.8549585","url":null,"abstract":"Small, portable, independent, ecological and free energy sources are becoming the object of ever increasing interest. The energy harvesters are such kind of electrical sources that require development and deeper research for improving their performance. The current article is concerned with the problems that are characteristic for piezoelectric wafer harvesters. Experimental research and behavioral modeling are used to underline problems and suggest some readily applicable solutions.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126852651","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}
{"title":"DC Characteristics of a Series Resonant DC/DC Converter at Variable-Frequency Control Methods","authors":"T. Grigorova, A. Vuchev","doi":"10.1109/ET.2018.8549614","DOIUrl":"https://doi.org/10.1109/ET.2018.8549614","url":null,"abstract":"The series resonant DC/DC converter (SRC) operating above its resonant frequency is used as a power source for many industrial applications where different methods for the SRC output power control are applied. The paper presents DC characteristics at variable-frequencies control methods, which allows for determining the control range for various load parameters. With their help, the static and dynamic behaviour of the load while changing the control parameter is discussed.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128504252","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}
{"title":"Research and Development of IoT based Solutions for Introduction the Cloud-aided Control in the Energy Systems","authors":"P. Yakimov, A. Iovev","doi":"10.1109/ET.2018.8549635","DOIUrl":"https://doi.org/10.1109/ET.2018.8549635","url":null,"abstract":"The paper describes the development and implementation of Internet of Things oriented solutions which are expected to help the introduction of Cloud computing in the industrial and home energy management systems. The challenges in front of the control of energy systems are outlined in order to motivate the introduction of smart metering infrastructure and information technologies. Two models of IoT based solutions are explained which consider the Internet connectivity of modern and legacy measurement and control equipment. Experimental results are given.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115009450","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}
{"title":"Using Proteus to Support Engineering Student Learning: Microcontroller-Driven Sensors Case Study","authors":"K. Asparuhova, D. Shehova, Slavi Lyubomirov","doi":"10.1109/ET.2018.8549587","DOIUrl":"https://doi.org/10.1109/ET.2018.8549587","url":null,"abstract":"This paper presents the use of the Proteus environment for the study of Arduino-driven sensor circuits, designed to support electronics student education. A simulation model of sensor circuit has been developed, including a PIR Motion Sensor, a Flame Sensor and a Humidity and Temperature Sensor SHT15 controlled by the Arduino Uno microcontroller. Also a display of liquid crystal, buzzer and LEDs on the board are included. The simulation model allows for the study, setup and diagnosis of the hardware, the software, CPU, and peripherals. Depending on the level of the students, different possibilities of the simulation model can be used. After the simulation, it is possible to transfer the graphics program to real Arduino board hardware for further measurement and analysis.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114954689","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}