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2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE)最新文献

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Electronic System for Monitoring Quality of Air and Atmospheric Conditions with Autonomous Power Supply System 带有自主供电系统的空气质量和大气状态监测电子系统
2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2020-11-05 DOI: 10.1109/ISFEE51261.2020.9756153
Alin Alexandra Şerban, Madalin Frunzete
{"title":"Electronic System for Monitoring Quality of Air and Atmospheric Conditions with Autonomous Power Supply System","authors":"Alin Alexandra Şerban, Madalin Frunzete","doi":"10.1109/ISFEE51261.2020.9756153","DOIUrl":"https://doi.org/10.1109/ISFEE51261.2020.9756153","url":null,"abstract":"Pollution and quality of air represent a very important and popular subject in these days. Level of pollution in towers is high, or it is in continuously increasing and there are a lot of warnings regarding this everywhere. The concept from this paper describes a solution for monitoring in every moment the quality of air and the atmospheric conditions. Another important concept from this paper is the energy saving by using solar energy: a photovoltaic panel can convert the solar radiation into electricity and after that this energy can be stored in batteries(for example Li-Ion battery, as in this application). The battery will be charged by the photovoltaic panel during the day, and the stored energy will be used in the nighttime. The presented project is based on the important concepts from above and consists in two parts, a module for gathering the data from different sensors, processing the data and sending to a second module and also to a database. Based on the values from the sensors, graphs are created automatically for storing the history and the user can monitor anytime the quality of air and atmospheric conditions. In the following paper, there will be presented the block diagrams, implementation and testing for the entire system.","PeriodicalId":145923,"journal":{"name":"2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133410387","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: 1
Effect of Different Threshold Levels for Binarization Method in Image Classification 不同阈值水平对二值化方法在图像分类中的影响
2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2020-11-05 DOI: 10.1109/ISFEE51261.2020.9756173
Serkan Saǧlam, S. Bayar
{"title":"Effect of Different Threshold Levels for Binarization Method in Image Classification","authors":"Serkan Saǧlam, S. Bayar","doi":"10.1109/ISFEE51261.2020.9756173","DOIUrl":"https://doi.org/10.1109/ISFEE51261.2020.9756173","url":null,"abstract":"Image processing is the most preferred technique in Computer-Aided Design (CAD) studies, and therefore the enhancement of image processing plays an essential role in the advancement of technology. The primary purpose of this study is to examine the effect of fixed threshold value on images of different sizes when using the binarization method in image processing. The analyzes are made based on the change in the detection accuracy percentage of the K-Nearest Neighbor (k-NN), Support Vector Machine (SVM), and Convolutional Neural Networks (CNN) classification methods on the MATLAB software platform. At the same time, the effect of the binarization threshold value on images with different pixel dimensions (8x8, 16x16, 32x32, 64x64, and 128x128) are investigated. CNN classification obtained the best accuracy percentage in the used malaria disease blood cell data 97.5%, followed by k-NN with 95% and SVM with 91.5%.","PeriodicalId":145923,"journal":{"name":"2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129223948","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
Building Interactive Multimedia Applications for Teaching and Learning the Topic "Resonant Circuits" 在“谐振电路”教学中构建交互式多媒体应用
2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2020-11-05 DOI: 10.1109/ISFEE51261.2020.9756132
A. Borodzhieva
{"title":"Building Interactive Multimedia Applications for Teaching and Learning the Topic \"Resonant Circuits\"","authors":"A. Borodzhieva","doi":"10.1109/ISFEE51261.2020.9756132","DOIUrl":"https://doi.org/10.1109/ISFEE51261.2020.9756132","url":null,"abstract":"Interactive multimedia applications in English for teaching and learning the topic \"Resonant Circuits\" are built as a part of teamwork and project-based learning applied in the course \"Communication Circuits\" for Bachelors in the specialty \"Internet and Mobile Communications\" in the University of Ruse. The applications include varied types of testing exercises and allow students to learn basic concepts about resonant circuits.","PeriodicalId":145923,"journal":{"name":"2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128513575","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
SPICE Model Implementation for LiFePO4 Cell LiFePO4电池的SPICE模型实现
2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2020-11-05 DOI: 10.1109/ISFEE51261.2020.9756177
I. Guran, Lucian Andrei Perișoară, A. Florescu
{"title":"SPICE Model Implementation for LiFePO4 Cell","authors":"I. Guran, Lucian Andrei Perișoară, A. Florescu","doi":"10.1109/ISFEE51261.2020.9756177","DOIUrl":"https://doi.org/10.1109/ISFEE51261.2020.9756177","url":null,"abstract":"Faults in the design of battery-powered circuits can lead to battery destruction. Battery simulation is an extremely important topic as simulation of the battery and the circuit together emphasizes a detailed functioning before the physical implementation and can also reveal hidden faults. In this paper, a SPICE model for LiFePO4 battery cells was implemented and simulated. The model targets specifically the CALB CA180FA LiFePO4 cell used in automotive industry for Electric Vehicles (EV) or in Energy Storage Systems (ESS). There are no models currently implemented for the LiFePO4 battery cells, which affects the simulation process of the systems. The model proves of utmost importance in simulating battery-powered systems, energy storage systems and Battery Management Systems (BMS), helping in understanding the impact these circuits have on batteries they are powered from or are designed for. The most important characteristics implemented are the OCV (Open-Circuit Voltage) - SOC (State of Charge) curve and the internal resistance. The LiFePO4 cell model can be parameterized by choosing the values for cell capacity and internal resistance.","PeriodicalId":145923,"journal":{"name":"2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134440520","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
Coaxial Type Thermoelectric Generator Simulation and Calculation 同轴式热电发电机的仿真与计算
2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2020-11-05 DOI: 10.1109/ISFEE51261.2020.9756152
V. Loboda, R. Buslaev
{"title":"Coaxial Type Thermoelectric Generator Simulation and Calculation","authors":"V. Loboda, R. Buslaev","doi":"10.1109/ISFEE51261.2020.9756152","DOIUrl":"https://doi.org/10.1109/ISFEE51261.2020.9756152","url":null,"abstract":"The paper deals with the simulation and the calculation of output parameters for coaxial and ordinary thermoelectric generators with cylindrical and rectangular thermoelement geometry. It is shown that the thermoelements geometry does not affect the output power. The differences between output parameters of coaxial and ordinary thermoelectric generators are not significant. The calculation has been done by finite element method using ANSYS.","PeriodicalId":145923,"journal":{"name":"2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134065859","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
Energy Losses at Wind Turbines Operating in Variable Wind Speed Conditions 可变风速条件下风力涡轮机的能量损失
2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2020-11-05 DOI: 10.1109/ISFEE51261.2020.9756167
Chioncel Cristian Paul, Erdodi Geza-Mihai, M. Dordescu
{"title":"Energy Losses at Wind Turbines Operating in Variable Wind Speed Conditions","authors":"Chioncel Cristian Paul, Erdodi Geza-Mihai, M. Dordescu","doi":"10.1109/ISFEE51261.2020.9756167","DOIUrl":"https://doi.org/10.1109/ISFEE51261.2020.9756167","url":null,"abstract":"The present paper presents the calculation of the energy losses of a wind turbine that operates in time-varying wind speeds, analyzing the conditions trough out the wind energy capture is maximum. The considered mathematical model of the turbine allows the estimation of optimal energy quantities, calculating the values of the wind energy captured at different values for the mechanical angular speed, ω, MAS. For a good estimation of the optimum mechanical angular speed, we appeal to the equivalent wind speed, determining, at the same time, the wind energy losses that cannot be captured due to the high mechanical inertia. The power oscillations at the generator are also calculated correlated with the inertia moment, concluding that it is more efficient, in terms of conversion efficiency, that the wind turbines are placed in areas with slightly variable wind speed over time.","PeriodicalId":145923,"journal":{"name":"2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116409028","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
Angular Positioning Device with Wireless Accessibility 具有无线可及性的角度定位装置
2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2020-11-05 DOI: 10.1109/ISFEE51261.2020.9756174
I. Mituletu, C. Muscai, Gilbert-Rainer Gillich, Liviu-Bogdan Protea
{"title":"Angular Positioning Device with Wireless Accessibility","authors":"I. Mituletu, C. Muscai, Gilbert-Rainer Gillich, Liviu-Bogdan Protea","doi":"10.1109/ISFEE51261.2020.9756174","DOIUrl":"https://doi.org/10.1109/ISFEE51261.2020.9756174","url":null,"abstract":"This Angular Positioning Device (APD) evaluates the angular position related to a three-axis orthogonal system, displays the resulted values and also creates a WiFi access point to send these values to other Portable Access Devices (PADs). APD consists of a triple-axis magnetometer sensor, a NodeMCU V3 development board, OLED display and two rechargeable batteries. The transmission baud rate of the designed device experimentally tested assures enough speed for five simultaneous WiFi connections, and also the properly on-site operation is allowed. By using this device the team leader can perform a remote supervisory process on the on-site operators in order to correctly achieve the required angular positions.","PeriodicalId":145923,"journal":{"name":"2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123606835","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
Achieving Hard Real-Time Networking on PREEMPT_RT Linux with RTnet 利用RTnet在PREEMPT_RT Linux上实现硬实时网络
2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2020-11-05 DOI: 10.1109/ISFEE51261.2020.9756165
L. Duca, A. Duca
{"title":"Achieving Hard Real-Time Networking on PREEMPT_RT Linux with RTnet","authors":"L. Duca, A. Duca","doi":"10.1109/ISFEE51261.2020.9756165","DOIUrl":"https://doi.org/10.1109/ISFEE51261.2020.9756165","url":null,"abstract":"There are many operating systems on the market, but, being free and having great user interface, connectivity and graphics features, Linux can be used in various scenarios like communication, trading and control systems. The PREEMPT_RT patch brings hard real-time behavior to Linux, but it lacks a real-time networking stack. RTnet is a mature hard real-time open source networking stack. This paper presents the main part port of the RTnet on PREEMPT_RT Linux kernel 5.9, along with stress tests that were run to prove the efficiency of the RTnet stack on PREEMPT_RT Linux.","PeriodicalId":145923,"journal":{"name":"2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125728834","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
Raspberry Pi, an Alternative Low-Cost PLC 树莓派，一种可替代的低成本PLC
2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2020-11-05 DOI: 10.1109/ISFEE51261.2020.9756175
Cornel-Cristian Andrei, Gabriel Tudor, Mădălina Arhip-Călin, Grațian Fierăscu, Cătălin-David Urcan
{"title":"Raspberry Pi, an Alternative Low-Cost PLC","authors":"Cornel-Cristian Andrei, Gabriel Tudor, Mădălina Arhip-Călin, Grațian Fierăscu, Cătălin-David Urcan","doi":"10.1109/ISFEE51261.2020.9756175","DOIUrl":"https://doi.org/10.1109/ISFEE51261.2020.9756175","url":null,"abstract":"Today PLC’s (Programmable Logic Controller) play an important part in all industrial control processes, being used in different scenarios from factory subsystem automation up power grid supervise and control. Typical off the shelf solution provided by major players in the PLC market, are relevant for high level projects, but in case of small-scale projects where there is the need to control or supervise a few processes, a solution like this is considerably too expensive. For this level repurposing a device like a Raspberry Pi into a PLC is a better option, more cost-effective. This paper will present the step-by-step transformation of Raspberry Pi into PLC.","PeriodicalId":145923,"journal":{"name":"2020 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129636423","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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