Pub Date : 2020-05-01DOI: 10.1109/DAS49615.2020.9108924
Puscasu Samuel, Voju Radu Alexandru, Matei Alexandru, Zamfirescu Bălă Constantin
This paper introduces the concepts of an architecture for a distributed control system of an industrial production line. The system is based on a multi-agent system that controls the hardware components using a network of low-level controllers. The low-level controllers are programmed using the new standard IEC61499. This architecture will be tested on a preexisting demo production line.
{"title":"Architectural Issues in Implementing a Distributed Control System for an Industry 4.0 Prototype","authors":"Puscasu Samuel, Voju Radu Alexandru, Matei Alexandru, Zamfirescu Bălă Constantin","doi":"10.1109/DAS49615.2020.9108924","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108924","url":null,"abstract":"This paper introduces the concepts of an architecture for a distributed control system of an industrial production line. The system is based on a multi-agent system that controls the hardware components using a network of low-level controllers. The low-level controllers are programmed using the new standard IEC61499. This architecture will be tested on a preexisting demo production line.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"54 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":"134450122","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/DAS49615.2020.9108935
Laura-Bianca Bilius, S. Pentiuc
With the development of remote sensing hyperspectral image analysis techniques become more important. Known methods and algorithms for pattern recognition and clustering together with others built especially for this type of data are trying to be used for dimensional reduction, spectral unmixing, decomposition, segmentation. In this paper, we approached Parafac decomposition due to the lower computation time for obtaining a model that explains very well the real data. Image segmentation techniques are applied to the abundances map to distinguish materials in an area of interest. These techniques are used to obtain a representation that will facilitate the interpretation of the information contained in the hyperspectral image.
{"title":"Improving the Analysis of Hyperspectral Images Using Tensor Decomposition","authors":"Laura-Bianca Bilius, S. Pentiuc","doi":"10.1109/DAS49615.2020.9108935","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108935","url":null,"abstract":"With the development of remote sensing hyperspectral image analysis techniques become more important. Known methods and algorithms for pattern recognition and clustering together with others built especially for this type of data are trying to be used for dimensional reduction, spectral unmixing, decomposition, segmentation. In this paper, we approached Parafac decomposition due to the lower computation time for obtaining a model that explains very well the real data. Image segmentation techniques are applied to the abundances map to distinguish materials in an area of interest. These techniques are used to obtain a representation that will facilitate the interpretation of the information contained in the hyperspectral image.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"108 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":"132126525","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/DAS49615.2020.9108964
Sebastian-Andrei Avatamanitei, A. Căilean, Cătălin Beguni, M. Dimian, V. Popa
Considering the wide deployment of LED lighting sources in the transportation domain, automotive Visible Light Communications arise as a highly promising research area. Nevertheless, due to the high intensity of parasitic light sources associated to rather low power data signals numerous challenges emerge. In this context, this paper is focused on the analysis of linear transimpedance circuit performances in automotive applications. Thus, it presents an analysis regarding the influence of strong sunlight on the photosensitive element. The analysis involves the simulation of a microcontroller-assisted variable gain transimpedance circuit that enables the VLC system to prevent saturation by reducing its sensitivity. By considering the emitted irradiance of lighting systems existing in transportation infrastructure, the maximum communication distance is determined. The results show that a variable gain transimpedance circuit can enable communication distances between 9 and more than 150 meters depending on the sunlight power and on the VLC receiver field of view.
{"title":"Analysis Concerning the Usage of Visible Light Communications in Automotive Applications: Achievable Distances vs. Optical Noise","authors":"Sebastian-Andrei Avatamanitei, A. Căilean, Cătălin Beguni, M. Dimian, V. Popa","doi":"10.1109/DAS49615.2020.9108964","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108964","url":null,"abstract":"Considering the wide deployment of LED lighting sources in the transportation domain, automotive Visible Light Communications arise as a highly promising research area. Nevertheless, due to the high intensity of parasitic light sources associated to rather low power data signals numerous challenges emerge. In this context, this paper is focused on the analysis of linear transimpedance circuit performances in automotive applications. Thus, it presents an analysis regarding the influence of strong sunlight on the photosensitive element. The analysis involves the simulation of a microcontroller-assisted variable gain transimpedance circuit that enables the VLC system to prevent saturation by reducing its sensitivity. By considering the emitted irradiance of lighting systems existing in transportation infrastructure, the maximum communication distance is determined. The results show that a variable gain transimpedance circuit can enable communication distances between 9 and more than 150 meters depending on the sunlight power and on the VLC receiver field of view.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"16 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":"124079144","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/das49615.2020.9108943
{"title":"DAS 2020 Cover Page","authors":"","doi":"10.1109/das49615.2020.9108943","DOIUrl":"https://doi.org/10.1109/das49615.2020.9108943","url":null,"abstract":"","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"12 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":"116012363","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/DAS49615.2020.9108968
Mihaela Chistol
Evolution of modern technologies allowed to store the text in various digital formats such as e-mails, e-documents, libraries, etc. The amount of text data that is produced daily is increasing dramatically. Discovering useful patterns in text that can be represented in unstructured, semi-structured or structured format is a difficult task that requires a good understanding of machine learning algorithms. Finding a suitable algorithm for text mining tasks such as classification, clustering or natural language processing is a demanding situation that tests researchers’ abilities. This paper provides an overview of the text mining process also, presents a comparison of the performance and limitations of two predictive models generated using the parametric Naïve Bayes algorithm and nonparametric Deep Learning neural network. RapidMiner data science software platform has been used for models’ implementations and e-mail classification.
{"title":"A Comparative Study of Parametric Versus Non-Parametric Text Classification Algorithms","authors":"Mihaela Chistol","doi":"10.1109/DAS49615.2020.9108968","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108968","url":null,"abstract":"Evolution of modern technologies allowed to store the text in various digital formats such as e-mails, e-documents, libraries, etc. The amount of text data that is produced daily is increasing dramatically. Discovering useful patterns in text that can be represented in unstructured, semi-structured or structured format is a difficult task that requires a good understanding of machine learning algorithms. Finding a suitable algorithm for text mining tasks such as classification, clustering or natural language processing is a demanding situation that tests researchers’ abilities. This paper provides an overview of the text mining process also, presents a comparison of the performance and limitations of two predictive models generated using the parametric Naïve Bayes algorithm and nonparametric Deep Learning neural network. RapidMiner data science software platform has been used for models’ implementations and e-mail classification.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"134 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":"123437377","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/DAS49615.2020.9108934
O. Gherman
Data collection for controlled experiments is a critical step in ensuring that the correct protocol is followed. This stage usually requires specialized devices and proper recorders. Moreover, the data - in different formats and from various sources - must be stored, processed, and used for various stages of the experiment. A good workflow for data management is important both for experiment’s implementation and for historic preservation of the relevant information (for later analysis, metaanalysis, or various other uses). In this regard, the article proposes an experimental architecture that leverages the modern technologies to allow easy deployment of data acquisition tools in the field, the collection and classification of data and storage and custom retrieval of information for various purposes. The details of the platform will be further discussed, and its advantages highlighted.
{"title":"An Architecture and Protocol for Management of Multimodal Experimental Data","authors":"O. Gherman","doi":"10.1109/DAS49615.2020.9108934","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108934","url":null,"abstract":"Data collection for controlled experiments is a critical step in ensuring that the correct protocol is followed. This stage usually requires specialized devices and proper recorders. Moreover, the data - in different formats and from various sources - must be stored, processed, and used for various stages of the experiment. A good workflow for data management is important both for experiment’s implementation and for historic preservation of the relevant information (for later analysis, metaanalysis, or various other uses). In this regard, the article proposes an experimental architecture that leverages the modern technologies to allow easy deployment of data acquisition tools in the field, the collection and classification of data and storage and custom retrieval of information for various purposes. The details of the platform will be further discussed, and its advantages highlighted.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"10 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":"123599009","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/DAS49615.2020.9108909
Octavian-Teodor Pacurar, A. Silaghi, Cornel Balint, A. Sabata, A. Graur
The electromagnetic environment has changed rapidly in the last decades: the density of pollution sources has increased exponentially. In this paper, a series of measurements inside an Electromagnetic Compatibility (EMC) laboratory are reported. Comparisons are made between measurements made in the usual frequency range used in EMC Automotive Testing: 200 – 3000 MHz. The differences that appear in different chambers are validated by using the noise power density. Noise measurement for the experimental setup is analyzed in detail, considering the contribution of the antenna, cable and preamplifier. An alternative method to find the spectrum part containing only noise is proposed.
{"title":"Experiments Concerning the Spectrum Structure Inside an Automotive EMC Laboratory","authors":"Octavian-Teodor Pacurar, A. Silaghi, Cornel Balint, A. Sabata, A. Graur","doi":"10.1109/DAS49615.2020.9108909","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108909","url":null,"abstract":"The electromagnetic environment has changed rapidly in the last decades: the density of pollution sources has increased exponentially. In this paper, a series of measurements inside an Electromagnetic Compatibility (EMC) laboratory are reported. Comparisons are made between measurements made in the usual frequency range used in EMC Automotive Testing: 200 – 3000 MHz. The differences that appear in different chambers are validated by using the noise power density. Noise measurement for the experimental setup is analyzed in detail, considering the contribution of the antenna, cable and preamplifier. An alternative method to find the spectrum part containing only noise is proposed.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"60 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":"116588925","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/DAS49615.2020.9108972
C. Lesanu, Adrian Done, Cezar-Ion Adomnitei
In the field of meteor study using radio techniques, the transmitting antenna of the radio beacons is most of the time a classical turnstile antenna design. As an alternative, it is proposed a pyramidal shaped omnidirectional antenna with complex conjugate impedance, which exhibits similar performance. By design, this type of antenna does not require additional electrical components for obtaining the circular polarization and the impedance matching. Furthermore, the pyramidal shape allows the practical implementation of the antenna using a simple and light mechanical structure.
{"title":"Omnidirectional Antenna with Complex Conjugate Impedance for Radio Meteor Detection","authors":"C. Lesanu, Adrian Done, Cezar-Ion Adomnitei","doi":"10.1109/DAS49615.2020.9108972","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108972","url":null,"abstract":"In the field of meteor study using radio techniques, the transmitting antenna of the radio beacons is most of the time a classical turnstile antenna design. As an alternative, it is proposed a pyramidal shaped omnidirectional antenna with complex conjugate impedance, which exhibits similar performance. By design, this type of antenna does not require additional electrical components for obtaining the circular polarization and the impedance matching. Furthermore, the pyramidal shape allows the practical implementation of the antenna using a simple and light mechanical structure.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"25 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":"114401029","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/DAS49615.2020.9108967
V. Oleschuk, M. Tirsu, Victor Galbura, I. Vasiliev
Specialized control scheme and techniques of space-vector modulation have been adapted for synchronous regulation of two diode-clamped inverters of grid-connected photovoltaic (PV) installation with specific double-delta configuration of inverter-side windings of power transformer. Modified algorithms of synchronous modulation, disseminated for adjustment of inverters of PV system with specific connection of windings of power transformer, insure improved harmonic composition of winding voltage of transformer. Even harmonics and undesirable subharmonics are absent in spectra of winding voltage for any control regimes of operation of this PV system, including overmodulation control modes of inverters.
{"title":"Transformer-Based PV System with Modified Techniques of PWM of Diode-Clamped Inverters","authors":"V. Oleschuk, M. Tirsu, Victor Galbura, I. Vasiliev","doi":"10.1109/DAS49615.2020.9108967","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108967","url":null,"abstract":"Specialized control scheme and techniques of space-vector modulation have been adapted for synchronous regulation of two diode-clamped inverters of grid-connected photovoltaic (PV) installation with specific double-delta configuration of inverter-side windings of power transformer. Modified algorithms of synchronous modulation, disseminated for adjustment of inverters of PV system with specific connection of windings of power transformer, insure improved harmonic composition of winding voltage of transformer. Even harmonics and undesirable subharmonics are absent in spectra of winding voltage for any control regimes of operation of this PV system, including overmodulation control modes of inverters.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"33 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":"130520163","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/DAS49615.2020.9108912
Elisabeta Zagan, M. Danubianu
The explosion of new data: social media, commercial, industrial, health, school, etc. appeared in recent years, has led to the emergence and development of new technologies and techniques of data management. The old technologies of data storage and data processing are beginning to be overwhelmed by the large volume of data and their variety. Data Lake is one of the latest technologies that seem to be in the spotlight in the last period. In this article, we analyze some of the recent approaches and architectures using Data Lake, approaches that have tried to cover several shortcomings encountered with the advent of these new technologies.
{"title":"Data Lake Approaches: A Survey","authors":"Elisabeta Zagan, M. Danubianu","doi":"10.1109/DAS49615.2020.9108912","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108912","url":null,"abstract":"The explosion of new data: social media, commercial, industrial, health, school, etc. appeared in recent years, has led to the emergence and development of new technologies and techniques of data management. The old technologies of data storage and data processing are beginning to be overwhelmed by the large volume of data and their variety. Data Lake is one of the latest technologies that seem to be in the spotlight in the last period. In this article, we analyze some of the recent approaches and architectures using Data Lake, approaches that have tried to cover several shortcomings encountered with the advent of these new technologies.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"16 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":"125004310","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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