Pub Date : 2022-05-23DOI: 10.1109/ELEKTRO53996.2022.9803610
Adam Skrvan, R. Hudec, S. Matuska
In the current pandemic time, one of the important parameters for assessing the health status of a patient with COVID 19 is level of blood oxygenation. The aim of our work is devoted to the development and construction of a pulse Oximeter based on MAX ICs. The initial pulse oxymetry studies were concerned with issues such as device size and power efficiency. Reduced power consumption and size are the major causes of our progress. We picked low-power electronic components to reduce power consumption. We used a diode field with two green, one red, one infrared, and two photodiodes as a light source and detector. A high-speed four-channel AD converter converts the signal from analog to digital. The signal is smoothed using an average filter in the algorithm. We found peaks that can be utilized to determine heart rate after smoothing the signal. The blood Oximeter level is calculated by processing the amplitude of red and infrared signals collected by a photodetector. Test algorithms were performed on the Arduino platform. The output of the device are values of blood oxygenation and heart rate.
{"title":"Design of a cheap pulse Oximeter for home care systems","authors":"Adam Skrvan, R. Hudec, S. Matuska","doi":"10.1109/ELEKTRO53996.2022.9803610","DOIUrl":"https://doi.org/10.1109/ELEKTRO53996.2022.9803610","url":null,"abstract":"In the current pandemic time, one of the important parameters for assessing the health status of a patient with COVID 19 is level of blood oxygenation. The aim of our work is devoted to the development and construction of a pulse Oximeter based on MAX ICs. The initial pulse oxymetry studies were concerned with issues such as device size and power efficiency. Reduced power consumption and size are the major causes of our progress. We picked low-power electronic components to reduce power consumption. We used a diode field with two green, one red, one infrared, and two photodiodes as a light source and detector. A high-speed four-channel AD converter converts the signal from analog to digital. The signal is smoothed using an average filter in the algorithm. We found peaks that can be utilized to determine heart rate after smoothing the signal. The blood Oximeter level is calculated by processing the amplitude of red and infrared signals collected by a photodetector. Test algorithms were performed on the Arduino platform. The output of the device are values of blood oxygenation and heart rate.","PeriodicalId":396752,"journal":{"name":"2022 ELEKTRO (ELEKTRO)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115822197","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 : 2022-05-23DOI: 10.1109/elektro53996.2022.9803583
O. Gorjani, P. Bilik, J. Koziorek
This study takes a look and investigates the application of logistical regression to recognize multiple predefined human activities performed by a single test subject within smart home environment. Two Inertial Measurement Unit (IMU) devices were used as wearable gadgets to collect movement data from the test subjects. Test subject worn these devices on their right wrist and ankle. The obtained data are combined room air quality data (Humidity, CO2, temperature) measured using KNX smart home technology. The research is beneficial to provide detailed report about activity levels and well-being of the smart home residence and create a smart home environment that adjust automatically to its residence requirements. The obtained results showed very high classification accuracy (97.8% in average).
{"title":"Activity recognition within smart homes using logistic regression","authors":"O. Gorjani, P. Bilik, J. Koziorek","doi":"10.1109/elektro53996.2022.9803583","DOIUrl":"https://doi.org/10.1109/elektro53996.2022.9803583","url":null,"abstract":"This study takes a look and investigates the application of logistical regression to recognize multiple predefined human activities performed by a single test subject within smart home environment. Two Inertial Measurement Unit (IMU) devices were used as wearable gadgets to collect movement data from the test subjects. Test subject worn these devices on their right wrist and ankle. The obtained data are combined room air quality data (Humidity, CO2, temperature) measured using KNX smart home technology. The research is beneficial to provide detailed report about activity levels and well-being of the smart home residence and create a smart home environment that adjust automatically to its residence requirements. The obtained results showed very high classification accuracy (97.8% in average).","PeriodicalId":396752,"journal":{"name":"2022 ELEKTRO (ELEKTRO)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116897704","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 : 2022-05-23DOI: 10.1109/ELEKTRO53996.2022.9803632
M. Furmanik, M. Vidlak, P. Rafajdus
The paper deals with the control of harmonics in a phase current for a six-phase permanent magnet synchronous machine (PMSM). The machine has two sets of three-phase windings with 30° displacement (asymmetrical six-phase machine). The comparison of the vector space decomposition (VSD) method utilized in various field-oriented control structures is proposed. A simplified version of the VSD approach is included for the reduction of computation time in embedded applications. The behavior of the proposed control techniques is experimentally verified in a 1 kW, 6-phase PMSM electric drive.
{"title":"Current Harmonics Control in Six-Phase PMSM","authors":"M. Furmanik, M. Vidlak, P. Rafajdus","doi":"10.1109/ELEKTRO53996.2022.9803632","DOIUrl":"https://doi.org/10.1109/ELEKTRO53996.2022.9803632","url":null,"abstract":"The paper deals with the control of harmonics in a phase current for a six-phase permanent magnet synchronous machine (PMSM). The machine has two sets of three-phase windings with 30° displacement (asymmetrical six-phase machine). The comparison of the vector space decomposition (VSD) method utilized in various field-oriented control structures is proposed. A simplified version of the VSD approach is included for the reduction of computation time in embedded applications. The behavior of the proposed control techniques is experimentally verified in a 1 kW, 6-phase PMSM electric drive.","PeriodicalId":396752,"journal":{"name":"2022 ELEKTRO (ELEKTRO)","volume":"510 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120881454","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 : 2022-05-23DOI: 10.1109/elektro53996.2022.9803413
Robert Plsicík, J. Šedo
This paper aims to document the design of a general algorithm for the intelligent safety system for motorcycles and, last but not least, the construction of a prototype that will create an environment suitable for the final implementation and tuning of the universal algorithm The prototype consists of an IoT Kit with ARM M3+ microcontroller, the GPS module for evaluation of change of position the vehicle, for communication between safety prototype is used GSM and Bluetooth module. The article consists of the description of the function and design of the Android application, which is a GUI for Bluetooth communication between a smartphone and the safety prototype. The topic is important for increasing the safety of single-track vehicles because their properties like weight and absence of body create positive preconditions for theft or damaged by overturning.
{"title":"Smart Security Systems for motorbikes","authors":"Robert Plsicík, J. Šedo","doi":"10.1109/elektro53996.2022.9803413","DOIUrl":"https://doi.org/10.1109/elektro53996.2022.9803413","url":null,"abstract":"This paper aims to document the design of a general algorithm for the intelligent safety system for motorcycles and, last but not least, the construction of a prototype that will create an environment suitable for the final implementation and tuning of the universal algorithm The prototype consists of an IoT Kit with ARM M3+ microcontroller, the GPS module for evaluation of change of position the vehicle, for communication between safety prototype is used GSM and Bluetooth module. The article consists of the description of the function and design of the Android application, which is a GUI for Bluetooth communication between a smartphone and the safety prototype. The topic is important for increasing the safety of single-track vehicles because their properties like weight and absence of body create positive preconditions for theft or damaged by overturning.","PeriodicalId":396752,"journal":{"name":"2022 ELEKTRO (ELEKTRO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129991489","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 : 2022-05-23DOI: 10.1109/ELEKTRO53996.2022.9803563
P. Kasak, R. Jarina
We present an evaluation of single-channel blind audio source separation (BASS) algorithms for different musical instrument combinations, based on statistical approach. So-called primitive BASS algorithms were chosen, because of their low computational latency and similarity to human hearing principles. The most common musical instruments (drums, guitars, vocals) were combined with each other, and segregate subsequently by 4 different blind audio source separation techniques. 25-second samples from 30 songs of various genres were used to preserve natural diversity. The main difference in our approach lies in the evaluation of average deviations from ground truth, instead of evaluating absolute values of signal-to-distortion ratio.
{"title":"Evaluation of blind source separation algorithms applied to music signals","authors":"P. Kasak, R. Jarina","doi":"10.1109/ELEKTRO53996.2022.9803563","DOIUrl":"https://doi.org/10.1109/ELEKTRO53996.2022.9803563","url":null,"abstract":"We present an evaluation of single-channel blind audio source separation (BASS) algorithms for different musical instrument combinations, based on statistical approach. So-called primitive BASS algorithms were chosen, because of their low computational latency and similarity to human hearing principles. The most common musical instruments (drums, guitars, vocals) were combined with each other, and segregate subsequently by 4 different blind audio source separation techniques. 25-second samples from 30 songs of various genres were used to preserve natural diversity. The main difference in our approach lies in the evaluation of average deviations from ground truth, instead of evaluating absolute values of signal-to-distortion ratio.","PeriodicalId":396752,"journal":{"name":"2022 ELEKTRO (ELEKTRO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130569943","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 : 2022-05-23DOI: 10.1109/ELEKTRO53996.2022.9803725
M. Polášek, M. Danko
The presented article presents the parameters of batteries used in electric cars. Measurements were performed for different types of batteries. The process of charging and subsequent discharging of these batteries took place. Different types of loads were used to discharge the batteries to find the smallest possible load current, which identifies the faults of the battery grid.
{"title":"Testing of batteries used in electric cars","authors":"M. Polášek, M. Danko","doi":"10.1109/ELEKTRO53996.2022.9803725","DOIUrl":"https://doi.org/10.1109/ELEKTRO53996.2022.9803725","url":null,"abstract":"The presented article presents the parameters of batteries used in electric cars. Measurements were performed for different types of batteries. The process of charging and subsequent discharging of these batteries took place. Different types of loads were used to discharge the batteries to find the smallest possible load current, which identifies the faults of the battery grid.","PeriodicalId":396752,"journal":{"name":"2022 ELEKTRO (ELEKTRO)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131755840","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 : 2022-05-23DOI: 10.1109/ELEKTRO53996.2022.9803742
T. Mizera, D. Pudiš, A. Kuzma, P. Gašo, P. Micek, D. Seyringer
Due to the increasing trend of photonic element miniaturisation and the need for optical splitting, we propose and simulate a new type of three-dimensional (3D) optical splitter based on multimode interference (MMI) for the wavelength of 1550 nm. We present various designs and simulations of various parameters for the optimized MMI splitter. We focus on the possibility of its integration on an optical fiber. The design is focused on a possible production process using 3D laser lithography for the prepared experiments. The MMI splitter was prepared by laser lithography using direct writing process and finally investigated by output characterisation by the near-field measurement.
{"title":"New concept of 3D MMI splitters based on polymer","authors":"T. Mizera, D. Pudiš, A. Kuzma, P. Gašo, P. Micek, D. Seyringer","doi":"10.1109/ELEKTRO53996.2022.9803742","DOIUrl":"https://doi.org/10.1109/ELEKTRO53996.2022.9803742","url":null,"abstract":"Due to the increasing trend of photonic element miniaturisation and the need for optical splitting, we propose and simulate a new type of three-dimensional (3D) optical splitter based on multimode interference (MMI) for the wavelength of 1550 nm. We present various designs and simulations of various parameters for the optimized MMI splitter. We focus on the possibility of its integration on an optical fiber. The design is focused on a possible production process using 3D laser lithography for the prepared experiments. The MMI splitter was prepared by laser lithography using direct writing process and finally investigated by output characterisation by the near-field measurement.","PeriodicalId":396752,"journal":{"name":"2022 ELEKTRO (ELEKTRO)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116696727","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 : 2022-05-23DOI: 10.1109/ELEKTRO53996.2022.9803743
M. Janek, V. Ladygin, Alexey Viktorievich Tishevsky, Marek Veveričík, S. G. Reznikov, Alexander Yurievich Isupov
The primary goal of this study is to develop and deploy a software solution that will allow us to calculate the position of a particle inside a neutron detector when only time information is available. Because the neutron detector is rarely used as a position detector, obtaining position accuracy at the quadrant level in most cases is sufficient. Firstly the simulated data is created as a grid of particle track intersection points with neutron detector. Then the reconstruction program is tested on this data. The signal’s propagation time is estimated using the assumption of constant speed. The algorithm is then tested on experimental data. It is found that experimental events are reproduced reasonably after running the reconstruction program. The sources of possible deviations are discussed.
{"title":"Particle’s position estimation in neutron and hodoscope detectors","authors":"M. Janek, V. Ladygin, Alexey Viktorievich Tishevsky, Marek Veveričík, S. G. Reznikov, Alexander Yurievich Isupov","doi":"10.1109/ELEKTRO53996.2022.9803743","DOIUrl":"https://doi.org/10.1109/ELEKTRO53996.2022.9803743","url":null,"abstract":"The primary goal of this study is to develop and deploy a software solution that will allow us to calculate the position of a particle inside a neutron detector when only time information is available. Because the neutron detector is rarely used as a position detector, obtaining position accuracy at the quadrant level in most cases is sufficient. Firstly the simulated data is created as a grid of particle track intersection points with neutron detector. Then the reconstruction program is tested on this data. The signal’s propagation time is estimated using the assumption of constant speed. The algorithm is then tested on experimental data. It is found that experimental events are reproduced reasonably after running the reconstruction program. The sources of possible deviations are discussed.","PeriodicalId":396752,"journal":{"name":"2022 ELEKTRO (ELEKTRO)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123860756","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 : 2022-05-23DOI: 10.1109/elektro53996.2022.9803353
S. Matuska, R. Hudec, P. Kamencay
This paper proposes a smart system for detecting the number of people in the classroom and their distribution over the available seats. The system is based on Arduino nodes used as the Internet of Things (IoT) modules and Raspberry PI as the central unit for data collection, evaluation, and storage. The system's primary purpose is to evaluate the number of people in the classroom because of the COVID-19 restrictions and automatically check the distance between sitting people. During the system design, we put personal privacy in the first place, and therefore we do not use any cameras.
{"title":"IoT Based System for Detecting the Number of People and their Distribution in Classroom","authors":"S. Matuska, R. Hudec, P. Kamencay","doi":"10.1109/elektro53996.2022.9803353","DOIUrl":"https://doi.org/10.1109/elektro53996.2022.9803353","url":null,"abstract":"This paper proposes a smart system for detecting the number of people in the classroom and their distribution over the available seats. The system is based on Arduino nodes used as the Internet of Things (IoT) modules and Raspberry PI as the central unit for data collection, evaluation, and storage. The system's primary purpose is to evaluate the number of people in the classroom because of the COVID-19 restrictions and automatically check the distance between sitting people. During the system design, we put personal privacy in the first place, and therefore we do not use any cameras.","PeriodicalId":396752,"journal":{"name":"2022 ELEKTRO (ELEKTRO)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126108702","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 : 2022-05-23DOI: 10.1109/ELEKTRO53996.2022.9803350
Jakub Bajzik, R. Jarina
In this paper, we present the system for sound event detection in domestic environments as defined in the DCASE 2021 challenge Task 4. The task aims to provide audio event localization timestamps in addition to event class probabilities. We aim to explore the usage of class activation maps, known from image processing, in such sound event detection systems. We propose two systems. The first system is a convolutional neural network trained for sound event classification using only weakly labeled and unlabeled data. The strong labels are obtained using class activation mapping, which is a popular technique, especially in image processing. In the second proposed system, we modified the baseline system, provided by the DCASE organizers, in which we added the class activation mapping as a part of the attention mechanism. The experimental results show that the class activation maps enable improvement of the system performance in comparison with the baseline.
{"title":"Sound event detection using class activation maps","authors":"Jakub Bajzik, R. Jarina","doi":"10.1109/ELEKTRO53996.2022.9803350","DOIUrl":"https://doi.org/10.1109/ELEKTRO53996.2022.9803350","url":null,"abstract":"In this paper, we present the system for sound event detection in domestic environments as defined in the DCASE 2021 challenge Task 4. The task aims to provide audio event localization timestamps in addition to event class probabilities. We aim to explore the usage of class activation maps, known from image processing, in such sound event detection systems. We propose two systems. The first system is a convolutional neural network trained for sound event classification using only weakly labeled and unlabeled data. The strong labels are obtained using class activation mapping, which is a popular technique, especially in image processing. In the second proposed system, we modified the baseline system, provided by the DCASE organizers, in which we added the class activation mapping as a part of the attention mechanism. The experimental results show that the class activation maps enable improvement of the system performance in comparison with the baseline.","PeriodicalId":396752,"journal":{"name":"2022 ELEKTRO (ELEKTRO)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125944445","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：