Pub Date : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425172
A. Chiriac, S. Mocanu, Cosmin Popa
A recent report elaborated by European Commission reveals that Romania ranks one of the last positions in European Union in that concerns digitalization of public services. Solutions implemented in other countries (Finland, Estonia, Latvia and many others) prove this is no longer a theoretical concept but a is real need. In this paper, a functional system implemented in several public administration entities from Romania is presented along with the advantages derived from digitalizing public administration services.
{"title":"Onto Digitalization of Public Services","authors":"A. Chiriac, S. Mocanu, Cosmin Popa","doi":"10.1109/ATEE52255.2021.9425172","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425172","url":null,"abstract":"A recent report elaborated by European Commission reveals that Romania ranks one of the last positions in European Union in that concerns digitalization of public services. Solutions implemented in other countries (Finland, Estonia, Latvia and many others) prove this is no longer a theoretical concept but a is real need. In this paper, a functional system implemented in several public administration entities from Romania is presented along with the advantages derived from digitalizing public administration services.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125210323","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425250
C. Comeaga, E. Niță, P. Coandă
The paper presents the realization of very precise positioning systems studies for the orientation of laser sources in portable medical laser equipment. In the Part I article the kinematic structure and the operating relations were presented, the possibility of constructing an equivalent compliant structure was discussed and piezoelectric positioning solutions were analyzed, with stack actuators. The presented solution proved to meet the imposed requirements, having advantages in certain applications. This article (Part II) discusses the possibility of using piezoelectric bending actuators of linear bimorph type. For the operation with piezoelectric bimorphs, the connection modes are discussed, identifying the practical disadvantages and correction solutions are proposed.
{"title":"Tremor Orientation and Compensation System in Laser Medical Equipment - Part II","authors":"C. Comeaga, E. Niță, P. Coandă","doi":"10.1109/ATEE52255.2021.9425250","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425250","url":null,"abstract":"The paper presents the realization of very precise positioning systems studies for the orientation of laser sources in portable medical laser equipment. In the Part I article the kinematic structure and the operating relations were presented, the possibility of constructing an equivalent compliant structure was discussed and piezoelectric positioning solutions were analyzed, with stack actuators. The presented solution proved to meet the imposed requirements, having advantages in certain applications. This article (Part II) discusses the possibility of using piezoelectric bending actuators of linear bimorph type. For the operation with piezoelectric bimorphs, the connection modes are discussed, identifying the practical disadvantages and correction solutions are proposed.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116689560","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425069
M. Costea, I. Băran
The paper presents a short analysis of benefits and disadvantages of multi-circuit overhead lines operation. Nowadays, the problem to build a new overhead line is a very difficult one because of land cost and different properties crossed by it, environmental impact, opposition of large public etc. Therefore, the solution to use same tower to support many circuits, with same or different rated voltage, also for AC and DC systems is very attractive. The main advantage is that of use of a narrow corridor to transmit a large amount of power. But other problems must be solved in order to make this type of line working properly, from solving the mutual influence of the circuits to lightning protection and up to the low frequency electromagnetic fields profile recorded near to ground.
{"title":"Benefits and Problems raised by Multi-circuit Overhead Lines Operation","authors":"M. Costea, I. Băran","doi":"10.1109/ATEE52255.2021.9425069","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425069","url":null,"abstract":"The paper presents a short analysis of benefits and disadvantages of multi-circuit overhead lines operation. Nowadays, the problem to build a new overhead line is a very difficult one because of land cost and different properties crossed by it, environmental impact, opposition of large public etc. Therefore, the solution to use same tower to support many circuits, with same or different rated voltage, also for AC and DC systems is very attractive. The main advantage is that of use of a narrow corridor to transmit a large amount of power. But other problems must be solved in order to make this type of line working properly, from solving the mutual influence of the circuits to lightning protection and up to the low frequency electromagnetic fields profile recorded near to ground.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127124270","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425346
H. Acikgoz, D. Korkmaz
In this paper, an effective deep rotor speed estimation model of an asynchronous motor is presented. The estimation model is based on the long short-term memory (LSTM) network which is one of the deep learning models. The designed model includes three main steps as the preprocessing, training of the deep speed estimation model, and evaluation of the model with testing. The dataset of the asynchronous motor model is obtained in MATLAB/Simulink environment under variable step speed references. The input parameters of the network are the dq-axis currents (id, iq) and voltages (vd, vq). The output is selected as the rotor speed (wr). The whole data is normalized to increase the estimation performance and then randomly divided into the training and validation. For the testing stage, different test data is also constructed. In the training process, the variation of the network performance is analyzed according to the neuron number increasing and optimum neuron number is achieved. The obtained results show that the proposed model is robust and efficient under the variable step speed references.
{"title":"Long Short-Term Memory Network-based Speed Estimation Model of an Asynchronous Motor","authors":"H. Acikgoz, D. Korkmaz","doi":"10.1109/ATEE52255.2021.9425346","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425346","url":null,"abstract":"In this paper, an effective deep rotor speed estimation model of an asynchronous motor is presented. The estimation model is based on the long short-term memory (LSTM) network which is one of the deep learning models. The designed model includes three main steps as the preprocessing, training of the deep speed estimation model, and evaluation of the model with testing. The dataset of the asynchronous motor model is obtained in MATLAB/Simulink environment under variable step speed references. The input parameters of the network are the dq-axis currents (id, iq) and voltages (vd, vq). The output is selected as the rotor speed (wr). The whole data is normalized to increase the estimation performance and then randomly divided into the training and validation. For the testing stage, different test data is also constructed. In the training process, the variation of the network performance is analyzed according to the neuron number increasing and optimum neuron number is achieved. The obtained results show that the proposed model is robust and efficient under the variable step speed references.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"185 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124920083","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425071
Catalin-Mircea Dumitrescu, I. Costea, O. Ghita, C. Banica
For most image processing algorithms, the scatter value is an important parameter. Estimating it as accurately as possible will allow obtaining optimal results considering both the amount of noise removed from the image and the quality of contour preservation. Estimating the dispersion by values lower than the correct one leads to the removal of a smaller amount of noise, and the estimation by higher values generates the blurring of the contours. In this article we propose an image processing architecture obtained from UAV based on wavelet decompositions for highlighting contours and recognizing/classifying objects.
{"title":"Processing Images Obtained from UAVs for Preserving Contours in Order to Classify Shapes","authors":"Catalin-Mircea Dumitrescu, I. Costea, O. Ghita, C. Banica","doi":"10.1109/ATEE52255.2021.9425071","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425071","url":null,"abstract":"For most image processing algorithms, the scatter value is an important parameter. Estimating it as accurately as possible will allow obtaining optimal results considering both the amount of noise removed from the image and the quality of contour preservation. Estimating the dispersion by values lower than the correct one leads to the removal of a smaller amount of noise, and the estimation by higher values generates the blurring of the contours. In this article we propose an image processing architecture obtained from UAV based on wavelet decompositions for highlighting contours and recognizing/classifying objects.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126610773","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425083
Ionescu Marius
The analysis of human tissue can help to detect diseases such as skin cancer, the analysis of blood or vessels, the measurement of blood glucose, the analysis of skin layers. The old methods use an analysis based on tissue intervention taking samples that are analyzed at the cellular level. Near-infrared (NIR) spectroscopy mass analysis can make these analyzes easier and better by being fast and can operate at any time. Applied infrared mass spectrometry can be used in medicine to detect certain areas of skin tissue damage, to detect cancer, or to accurately reproduce portions of living tissue for analysis.
{"title":"Spectroscopy Mass of Near Infrared in Medicine","authors":"Ionescu Marius","doi":"10.1109/ATEE52255.2021.9425083","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425083","url":null,"abstract":"The analysis of human tissue can help to detect diseases such as skin cancer, the analysis of blood or vessels, the measurement of blood glucose, the analysis of skin layers. The old methods use an analysis based on tissue intervention taking samples that are analyzed at the cellular level. Near-infrared (NIR) spectroscopy mass analysis can make these analyzes easier and better by being fast and can operate at any time. Applied infrared mass spectrometry can be used in medicine to detect certain areas of skin tissue damage, to detect cancer, or to accurately reproduce portions of living tissue for analysis.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114903309","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425185
I. Mituletu, D. Anghel, Loredana Ardeljan, Mihael Magda
The DC-DC non-isolated Buck converter is based on a sliding-mode controller (BC-SMC) accomplished with an Arduino Uno R3 development board. The converter aims to supply and charge portable devices (PDs) with variable DC voltage requirements in a range of 2.5 to 24 V and a power up to 300 W. The input is connected to a DC power supply of 30 V and 11 A. BC-SMC ensures the output voltage setup and control, it also limits the current that is supplied to the PD. The BC-SMC can switch between current control, when the PD charging process is at the beginning stage, or the voltage control at the end of charge or when simply supplying the PD. After testing the BC-SMC, it shows good performance, supplying up to 50 A for 5 V or lower voltage requirements, or more than 10 A at the 24 V, the highest voltage limit. The BC-SMC was developed to be included in a more complex equipment, which is targeted to connect to any electrical DC energy source, in a range of 1.5 to 300 V, and supply PDs with electrical requirements between: 2.5–30V and 0–50 A.
DC-DC非隔离降压转换器基于滑模控制器(BC-SMC)，由Arduino Uno R3开发板完成。该转换器旨在为具有2.5至24 V可变直流电压要求和高达300 W功率的便携式设备(pd)提供和充电。输入端连接30v、11a的直流电源。BC-SMC确保输出电压的设置和控制，它也限制了提供给PD的电流。当PD充电过程处于开始阶段时，BC-SMC可以在电流控制或充电结束或简单地提供PD时进行电压控制之间切换。经过测试，BC-SMC表现出良好的性能，在5v或更低的电压要求下提供高达50a的电源，或在24v的最高电压限制下提供超过10a的电源。BC-SMC被开发用于包含在更复杂的设备中，其目标是连接到1.5至300 V范围内的任何直流电源，并提供电气要求在2.5-30V和0-50 a之间的pd。
{"title":"DC-DC Buck Converter Based on Arduino Uno Sliding Mode Controller","authors":"I. Mituletu, D. Anghel, Loredana Ardeljan, Mihael Magda","doi":"10.1109/ATEE52255.2021.9425185","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425185","url":null,"abstract":"The DC-DC non-isolated Buck converter is based on a sliding-mode controller (BC-SMC) accomplished with an Arduino Uno R3 development board. The converter aims to supply and charge portable devices (PDs) with variable DC voltage requirements in a range of 2.5 to 24 V and a power up to 300 W. The input is connected to a DC power supply of 30 V and 11 A. BC-SMC ensures the output voltage setup and control, it also limits the current that is supplied to the PD. The BC-SMC can switch between current control, when the PD charging process is at the beginning stage, or the voltage control at the end of charge or when simply supplying the PD. After testing the BC-SMC, it shows good performance, supplying up to 50 A for 5 V or lower voltage requirements, or more than 10 A at the 24 V, the highest voltage limit. The BC-SMC was developed to be included in a more complex equipment, which is targeted to connect to any electrical DC energy source, in a range of 1.5 to 300 V, and supply PDs with electrical requirements between: 2.5–30V and 0–50 A.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116200008","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425045
V. Boicea, V. Petre, Cerasela Cămui
The economical aspects related to the operation of active distribution networks are of big interest today. One way to improve the efficiency and the reliability indicators of these grids is to apply a network reconfiguration in order to minimize the power loss. The purpose of this work is to present a distribution network reconfiguration through the Iterative Improvement Algorithm.
{"title":"Iterative Improvement Algorithm Used in Distribution Network Reconfiguration for Power Losses Minimization","authors":"V. Boicea, V. Petre, Cerasela Cămui","doi":"10.1109/ATEE52255.2021.9425045","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425045","url":null,"abstract":"The economical aspects related to the operation of active distribution networks are of big interest today. One way to improve the efficiency and the reliability indicators of these grids is to apply a network reconfiguration in order to minimize the power loss. The purpose of this work is to present a distribution network reconfiguration through the Iterative Improvement Algorithm.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"187 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114181933","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425187
Attila Tókos, Csaba Bartha, Monica Jipa, D. Micu, A. Caramitu, I. Lingvay
Through specific chemical and microbiological determinations, the interaction of the extremely low-frequency (ELF) electric field (EF) of 49.9 Hz and 99.9 Hz with the living matter of the activated sludge from a wastewater treatment plant was studied. The determinations showed that a 49.9 Hz EF significantly stimulates both the multiplication of microorganisms (more than 2$times$, compared to the reference) and the rate of pollutant metabolism, as opposed to a 99.9 Hz EF, where the stimulation of the multiplication of microorganisms is insignificant (below 1.1$times$, compared to the reference), instead, more strongly stimulates the metabolism of pollutants.
{"title":"Interactions of Extremely Low-Frequency Electric Field with the Active Sludge Live Materia from Wastewater Treatments","authors":"Attila Tókos, Csaba Bartha, Monica Jipa, D. Micu, A. Caramitu, I. Lingvay","doi":"10.1109/ATEE52255.2021.9425187","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425187","url":null,"abstract":"Through specific chemical and microbiological determinations, the interaction of the extremely low-frequency (ELF) electric field (EF) of 49.9 Hz and 99.9 Hz with the living matter of the activated sludge from a wastewater treatment plant was studied. The determinations showed that a 49.9 Hz EF significantly stimulates both the multiplication of microorganisms (more than 2$times$, compared to the reference) and the rate of pollutant metabolism, as opposed to a 99.9 Hz EF, where the stimulation of the multiplication of microorganisms is insignificant (below 1.1$times$, compared to the reference), instead, more strongly stimulates the metabolism of pollutants.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128396696","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425271
C. Popescu, Vlad-Cristian Georgescu, Emilia-Cristina Popescu
Industrial logistics is a very dynamic field, which involves moving equipment, flexibility, but also precise timing and accurate actions. Monitoring and control systems based on ZigBee can be implemented without causing obstructions or delays in the logistics flow. This paper presents different experiments using the industrial ZigBee equipment (coordinator, router, slave, bridge, sniffer) on different topologies and configurations.The purpose of these experiments is to find optimal topologies and settings for the ZigBee equipment, so that the implemented applications will be able to deal with the industrial environment, in order to acquire and transmit data as accurately as possible without losses of information and without interfering with the logistics flow. These experiments should be considered before implementing a ZigBee application in an industrial environment.
{"title":"Experimental Research Regarding the Use of ZigBee Technology in Industrial Logistics Applications","authors":"C. Popescu, Vlad-Cristian Georgescu, Emilia-Cristina Popescu","doi":"10.1109/ATEE52255.2021.9425271","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425271","url":null,"abstract":"Industrial logistics is a very dynamic field, which involves moving equipment, flexibility, but also precise timing and accurate actions. Monitoring and control systems based on ZigBee can be implemented without causing obstructions or delays in the logistics flow. This paper presents different experiments using the industrial ZigBee equipment (coordinator, router, slave, bridge, sniffer) on different topologies and configurations.The purpose of these experiments is to find optimal topologies and settings for the ZigBee equipment, so that the implemented applications will be able to deal with the industrial environment, in order to acquire and transmit data as accurately as possible without losses of information and without interfering with the logistics flow. These experiments should be considered before implementing a ZigBee application in an industrial environment.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123878285","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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