Pub Date : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130238
M. Frniak, P. Kamencay, M. Markovic, J. Dubovan, M. Dado
The number of cars driving on the roads is increasing every year. Due to the large number and especially the weight of passing vehicles, roads are in critical condition and need more and more investments for their repair. This incurs significant costs for road operators. Article goals are the visual classification of passing vehicles over the tested platform using neural networks. The differences, performance and their structures comparisons of these two neural networks, AlexNet and GoogLeNet, will be described.
{"title":"Comparison of Vehicle Categorisation by Convolutional Neural Networks using MATLAB","authors":"M. Frniak, P. Kamencay, M. Markovic, J. Dubovan, M. Dado","doi":"10.1109/ELEKTRO49696.2020.9130238","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130238","url":null,"abstract":"The number of cars driving on the roads is increasing every year. Due to the large number and especially the weight of passing vehicles, roads are in critical condition and need more and more investments for their repair. This incurs significant costs for road operators. Article goals are the visual classification of passing vehicles over the tested platform using neural networks. The differences, performance and their structures comparisons of these two neural networks, AlexNet and GoogLeNet, will be described.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124640238","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130286
M. Smetana, D. Gombarska, V. Chudacik, L. Janoušek, Filip Vaverka
The paper deals with the issue of electromagnetic non-destructive investigation of real fatigue defects of conductive materials. Austenitic stainless steel of grade AISI 316L is investigated by the eddy current method. Harmonic excitation is used for driving of the exciting coils. Presented fatigue cracks are induced by the three-point bending of the plates on the cycling machine with predefined loading process parameters. The gained response signals of the investigated regions of interest are graphically presented and discussed in the article.
{"title":"Experimental Identification of 316L Stainless Steel’s Artificial Fatigue Cracks by Eddy Current Method","authors":"M. Smetana, D. Gombarska, V. Chudacik, L. Janoušek, Filip Vaverka","doi":"10.1109/ELEKTRO49696.2020.9130286","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130286","url":null,"abstract":"The paper deals with the issue of electromagnetic non-destructive investigation of real fatigue defects of conductive materials. Austenitic stainless steel of grade AISI 316L is investigated by the eddy current method. Harmonic excitation is used for driving of the exciting coils. Presented fatigue cracks are induced by the three-point bending of the plates on the cycling machine with predefined loading process parameters. The gained response signals of the investigated regions of interest are graphically presented and discussed in the article.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130203210","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130337
G. Nobile, E. Vasta, M. Cacciato, G. Scarcella, G. Scelba, Agnese Giuseppa Federica Di Stefano, G. Leotta, P. Pugliatti, F. Bizzarri
The integration of energy storage systems (ESSs) and specially of battery ESSs (BESSs) with renewable energy sources represents an efficient solution due to their ability to provide energy time shifting, peak shaving and so on. Considering the above, deepening all aspects related to the precise estimation of the state of charge (SOC) of a battery becomes extremely important. In this work, a real-time estimation algorithm including a PI-based observer and an equivalent circuit model (ECM), is improved exploiting the SOC dependence on the open circuit voltage (OCV). Particularly, it is described how the SOC can be reliably deduced from relaxation voltage in a short time thanks to a prediction function. The integration of such function into the PI-based observer allows to get a good trade-off between accuracy and complexity.
{"title":"Integration of a relaxation voltage prediction function into a PI-based observer to improve the SOC estimation of battery packs in renewable energy applications","authors":"G. Nobile, E. Vasta, M. Cacciato, G. Scarcella, G. Scelba, Agnese Giuseppa Federica Di Stefano, G. Leotta, P. Pugliatti, F. Bizzarri","doi":"10.1109/ELEKTRO49696.2020.9130337","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130337","url":null,"abstract":"The integration of energy storage systems (ESSs) and specially of battery ESSs (BESSs) with renewable energy sources represents an efficient solution due to their ability to provide energy time shifting, peak shaving and so on. Considering the above, deepening all aspects related to the precise estimation of the state of charge (SOC) of a battery becomes extremely important. In this work, a real-time estimation algorithm including a PI-based observer and an equivalent circuit model (ECM), is improved exploiting the SOC dependence on the open circuit voltage (OCV). Particularly, it is described how the SOC can be reliably deduced from relaxation voltage in a short time thanks to a prediction function. The integration of such function into the PI-based observer allows to get a good trade-off between accuracy and complexity.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130204885","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130312
Vojtěch Lindauer, P. Pokorný, Erika Kedlesová, L. Capek
Measurement of skin mechanical properties suffers from different issues. Many methods for describing it have already been developed. The available methods do not meet every requirement from clinical practice. This paper presents technical concept of new method for measuring mechanical properties of human skin with aim for usage in clinical conditions. The emphasis during development is put on availability even during procedures and fast measurements results above precision and complexion. The paper then presents design of the device called "elastometer" we developed and presents results of measurements on plastic samples as well as human skin. Measuring of samples suggests that this new simple method is comparable with the more complex ones. The goal is to present this new concept to readers and to prove potential of this concept for future development. More on the topic can be found in theses which led to this paper [1], [2] (in czech).
{"title":"Simple method for measuring skin elasticity in vivo in situ","authors":"Vojtěch Lindauer, P. Pokorný, Erika Kedlesová, L. Capek","doi":"10.1109/ELEKTRO49696.2020.9130312","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130312","url":null,"abstract":"Measurement of skin mechanical properties suffers from different issues. Many methods for describing it have already been developed. The available methods do not meet every requirement from clinical practice. This paper presents technical concept of new method for measuring mechanical properties of human skin with aim for usage in clinical conditions. The emphasis during development is put on availability even during procedures and fast measurements results above precision and complexion. The paper then presents design of the device called \"elastometer\" we developed and presents results of measurements on plastic samples as well as human skin. Measuring of samples suggests that this new simple method is comparable with the more complex ones. The goal is to present this new concept to readers and to prove potential of this concept for future development. More on the topic can be found in theses which led to this paper [1], [2] (in czech).","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122517269","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130302
D. Kacik, N. Tarjányi, I. Martincek, Juraj Maciak, J. Horák, Anna Maciaková
We propose and experimentally demonstrate optical sensor based on all-fiber Mach-Zehnder interferometer possible use for Weight in Motion (WiM) systems. WiM is a dynamic vehicle weighing system for continuous traffic for protection of road infrastructure. The sensor is based on low-coherence interferometry of two modes. Applying the force (load) on fiber in test arm (its optical path is shorter than optical path of fiber placed in reference arm) of interferometer changes visibility of interference pattern. The design of deforming environment is also investigated. In addition, the sensor can be designed to be temperature independent.
{"title":"Optical sensor based on all-fiber interferometer for systems Weight in Motion","authors":"D. Kacik, N. Tarjányi, I. Martincek, Juraj Maciak, J. Horák, Anna Maciaková","doi":"10.1109/ELEKTRO49696.2020.9130302","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130302","url":null,"abstract":"We propose and experimentally demonstrate optical sensor based on all-fiber Mach-Zehnder interferometer possible use for Weight in Motion (WiM) systems. WiM is a dynamic vehicle weighing system for continuous traffic for protection of road infrastructure. The sensor is based on low-coherence interferometry of two modes. Applying the force (load) on fiber in test arm (its optical path is shorter than optical path of fiber placed in reference arm) of interferometer changes visibility of interference pattern. The design of deforming environment is also investigated. In addition, the sensor can be designed to be temperature independent.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124036645","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130230
N. Akinina, O. Melnik, Vyacheslav A. Krivtsov, E. Nikiforova
The problem of timely monitoring of unauthorized landfills is considered. A description of the algorithm for detecting unauthorized landfills is given. The results of the implementation of the described algorithm are presented
考虑了对非法堆填区进行及时监测的问题。给出了一种检测非法垃圾填埋场的算法。给出了所述算法的实现结果
{"title":"Analysis of Negative Anthropogenic Impact on the Ecological Condition of the Landscape with Optical Computer Technology","authors":"N. Akinina, O. Melnik, Vyacheslav A. Krivtsov, E. Nikiforova","doi":"10.1109/ELEKTRO49696.2020.9130230","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130230","url":null,"abstract":"The problem of timely monitoring of unauthorized landfills is considered. A description of the algorithm for detecting unauthorized landfills is given. The results of the implementation of the described algorithm are presented","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126461429","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130293
Jakub Bajzik, D. Koniar, L. Hargaš, Jozef Volák, Silvia Janisova
To find the solutions to various technical issues in image processing we often want to be able to obtain not only color but also depth information. Information about the depth helps with a better understanding and description of the scene. As a practical matter, we aim to convert the geometrical information about the object to the digital format with the highest possible accuracy. For such a conversion there are many existing methods of creating a 3D model, e.g. photogrammetry, laser scanners. These methods provide high-quality 3D information; however, they are high-priced and often limited by the size of both scanner and object and the scanning time. As an alternative, we present an optical depth sensor that can be used excluding other emerging disadvantages with lower quality of an output model though. In the future, we consider the usage of the selected sensor for specific biomedical application: diagnostic support of obstructive sleep apnea.
{"title":"Depth Sensor Selection for Specific Application","authors":"Jakub Bajzik, D. Koniar, L. Hargaš, Jozef Volák, Silvia Janisova","doi":"10.1109/ELEKTRO49696.2020.9130293","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130293","url":null,"abstract":"To find the solutions to various technical issues in image processing we often want to be able to obtain not only color but also depth information. Information about the depth helps with a better understanding and description of the scene. As a practical matter, we aim to convert the geometrical information about the object to the digital format with the highest possible accuracy. For such a conversion there are many existing methods of creating a 3D model, e.g. photogrammetry, laser scanners. These methods provide high-quality 3D information; however, they are high-priced and often limited by the size of both scanner and object and the scanning time. As an alternative, we present an optical depth sensor that can be used excluding other emerging disadvantages with lower quality of an output model though. In the future, we consider the usage of the selected sensor for specific biomedical application: diagnostic support of obstructive sleep apnea.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"32 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127838311","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130260
I. Petrášová, P. Karban, M. Forzan, I. Doležel, P. di Barba
A model of determining the time necessary for induction heating of a ferromagnetic cylindrical charge to the Curie temperature is presented, together with finding its sensitivity to variable input parameters. While the geometry of the inductor and charge are known together with the frequency of the field current, the input variables are represented by electromagnetic and thermal properties of the charge (nonlinear saturation curve, temperature dependence of its magnetic permeability and temperature dependencies of electric and thermal conductivities and specific heat capacity). The methodology is illustrated with a typical example.
{"title":"Sensitivity analysis of time of induction heating process on charge parameters","authors":"I. Petrášová, P. Karban, M. Forzan, I. Doležel, P. di Barba","doi":"10.1109/ELEKTRO49696.2020.9130260","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130260","url":null,"abstract":"A model of determining the time necessary for induction heating of a ferromagnetic cylindrical charge to the Curie temperature is presented, together with finding its sensitivity to variable input parameters. While the geometry of the inductor and charge are known together with the frequency of the field current, the input variables are represented by electromagnetic and thermal properties of the charge (nonlinear saturation curve, temperature dependence of its magnetic permeability and temperature dependencies of electric and thermal conductivities and specific heat capacity). The methodology is illustrated with a typical example.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127374120","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 : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130189
Z. Łukasik, J. Kozyra, Aldona Kuśmińska Fijałkowska
This article describes technology of laser cutting in a production company. The authors of this publication present selection of a system of guaranteed power supply based on UPS power supply with batteries for automated process of cutting. Implementation of the process of laser cutting will make company more competitive on the market, and products will be made in accordance with European and national safe use norms, and they will also meet ergonomic and ecological requirement.
{"title":"System of guaranteed power supply for the purposes of automated laser cutter in technologies of industrial cutting materials","authors":"Z. Łukasik, J. Kozyra, Aldona Kuśmińska Fijałkowska","doi":"10.1109/ELEKTRO49696.2020.9130189","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130189","url":null,"abstract":"This article describes technology of laser cutting in a production company. The authors of this publication present selection of a system of guaranteed power supply based on UPS power supply with batteries for automated process of cutting. Implementation of the process of laser cutting will make company more competitive on the market, and products will be made in accordance with European and national safe use norms, and they will also meet ergonomic and ecological requirement.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134624442","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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