Pub Date : 2020-05-01DOI: 10.1109/DAS49615.2020.9108977
Cristian Pamparău
We present in this paper technical and engineering details of a wearable system for visualizing digital content. The digital content is overlaid onto the physical space by employing hierarchical structures for content organization. We implement analogies with the physical world adapting laws of physics, such as gravity, to digital content. To this end, we rely on concepts from the fields of Augmented Reality, Wearable Computing, Software Engineering, and Human-Computer Interaction to propose a new model for accessing digital content anchored in the physical reality. In our prototype, reality is augmented with containers of digital content represented graphically as semiopaque spheres that float in the physical space around the user. We describe the properties of the spherical containers of digital content, such as their size and relative location in the physical environment, and their relationships to the user and the physical world. We also present interaction techniques based on gesture input that enable users to access the digital content contained by the virtual spheres. We present our technical implementation using the Microsoft holographic computer HoloLens and exemplify use case scenarios for our wearable prototype.
{"title":"A System for Hierarchical Browsing of Mixed Reality Content in Smart Spaces","authors":"Cristian Pamparău","doi":"10.1109/DAS49615.2020.9108977","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108977","url":null,"abstract":"We present in this paper technical and engineering details of a wearable system for visualizing digital content. The digital content is overlaid onto the physical space by employing hierarchical structures for content organization. We implement analogies with the physical world adapting laws of physics, such as gravity, to digital content. To this end, we rely on concepts from the fields of Augmented Reality, Wearable Computing, Software Engineering, and Human-Computer Interaction to propose a new model for accessing digital content anchored in the physical reality. In our prototype, reality is augmented with containers of digital content represented graphically as semiopaque spheres that float in the physical space around the user. We describe the properties of the spherical containers of digital content, such as their size and relative location in the physical environment, and their relationships to the user and the physical world. We also present interaction techniques based on gesture input that enable users to access the digital content contained by the virtual spheres. We present our technical implementation using the Microsoft holographic computer HoloLens and exemplify use case scenarios for our wearable prototype.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"56 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":"126118080","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/DAS49615.2020.9108918
F. Niculescu, A. Săvescu, M. Vasile
Gas turbines used in marine propulsion ensure increased efficiency and safety, with a very good power/weight ratio and with low maintenance and operation costs. The paper presents the control of the gas turbine so that it works in optimum operating conditions under any regime. The authors’ contribution consisted in the elaboration of control equations starting from the general equations of the gas turbine. These equations have been implemented in a digital control system that metered the fuel depending on the speed deviation. Finding the control algorithm involved determining the adjustment parameters so that the engine behaves stable at any speed. After testing the configuration on the stand, the actual testing was carried out on board the ship.
{"title":"Adaptive Control for Marine Gas Turbine","authors":"F. Niculescu, A. Săvescu, M. Vasile","doi":"10.1109/DAS49615.2020.9108918","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108918","url":null,"abstract":"Gas turbines used in marine propulsion ensure increased efficiency and safety, with a very good power/weight ratio and with low maintenance and operation costs. The paper presents the control of the gas turbine so that it works in optimum operating conditions under any regime. The authors’ contribution consisted in the elaboration of control equations starting from the general equations of the gas turbine. These equations have been implemented in a digital control system that metered the fuel depending on the speed deviation. Finding the control algorithm involved determining the adjustment parameters so that the engine behaves stable at any speed. After testing the configuration on the stand, the actual testing was carried out on board the ship.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"17 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":"128220007","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/DAS49615.2020.9108946
E. Băutu, C. Puchianu, Emanuela Bran, D. Sburlan, D. Popovici
Traffic accidents due to driver’s lack of attention have always been a major concern. Recently, there have been numerous reports of accidents that took place because the drivers were checking their phone or even texting while driving. Current efforts of traffic safety policy makers target the development of strategies that limit mobile phone use while driving. We describe an in-vehicle software system that eases the interaction between the driver and the smartphone. Using our software system, the driver may choose to automatically filter, in an adaptive manner, messages and notifications from third party applications, while driving. Using information from the vehicle sensors, the system identifies potentially dangerous situations and adapts its behavior to limit user distraction. The software development process is based on the principle of separation of concerns. The system complies with Intelligent Environments principles, especially by prioritizing user’s safety at all times. Further system developments regard the integration of Augmented Reality visualization and hands-free interaction capabilities.
{"title":"In-Vehicle Software System for Fostering Driver’s Attentiveness","authors":"E. Băutu, C. Puchianu, Emanuela Bran, D. Sburlan, D. Popovici","doi":"10.1109/DAS49615.2020.9108946","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108946","url":null,"abstract":"Traffic accidents due to driver’s lack of attention have always been a major concern. Recently, there have been numerous reports of accidents that took place because the drivers were checking their phone or even texting while driving. Current efforts of traffic safety policy makers target the development of strategies that limit mobile phone use while driving. We describe an in-vehicle software system that eases the interaction between the driver and the smartphone. Using our software system, the driver may choose to automatically filter, in an adaptive manner, messages and notifications from third party applications, while driving. Using information from the vehicle sensors, the system identifies potentially dangerous situations and adapts its behavior to limit user distraction. The software development process is based on the principle of separation of concerns. The system complies with Intelligent Environments principles, especially by prioritizing user’s safety at all times. Further system developments regard the integration of Augmented Reality visualization and hands-free interaction capabilities.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"36 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":"131053241","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/das49615.2020.9108936
{"title":"DAS 2020 Copyright Page","authors":"","doi":"10.1109/das49615.2020.9108936","DOIUrl":"https://doi.org/10.1109/das49615.2020.9108936","url":null,"abstract":"","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"41 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":"133717471","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/das49615.2020.9108960
{"title":"DAS 2020 TOC","authors":"","doi":"10.1109/das49615.2020.9108960","DOIUrl":"https://doi.org/10.1109/das49615.2020.9108960","url":null,"abstract":"","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"14 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":"121286626","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/DAS49615.2020.9108969
I. Cojuhari, I. Fiodorov, B. Izvoreanu, Dumitru Moraru
In this paper is proposed a tuning algorithm of PID controller that offers the maximum stability degree of the control system, based on the genetic algorithm. The tuning algorithm was designed based on the maximum stability degree method with iterations, where the tuning parameters depend on maximum stability degree which is varied. Based on its values, it was proposed to implement genetic algorithm to find the tuning parameters. The maximum stability degree method permits to obtain the high stability and high performance of the system, but this method has some limitations in case when control object is described by the model of object with inertia low order. In this case to find the best tuning parameters was proposed to use the genetic algorithm. For efficacy analysis of the proposed algorithm, there are presented some case studies and practical applications.
{"title":"Tuning of the PID Controller to the System with Maximum Stability Degree using Genetic Algorithm","authors":"I. Cojuhari, I. Fiodorov, B. Izvoreanu, Dumitru Moraru","doi":"10.1109/DAS49615.2020.9108969","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108969","url":null,"abstract":"In this paper is proposed a tuning algorithm of PID controller that offers the maximum stability degree of the control system, based on the genetic algorithm. The tuning algorithm was designed based on the maximum stability degree method with iterations, where the tuning parameters depend on maximum stability degree which is varied. Based on its values, it was proposed to implement genetic algorithm to find the tuning parameters. The maximum stability degree method permits to obtain the high stability and high performance of the system, but this method has some limitations in case when control object is described by the model of object with inertia low order. In this case to find the best tuning parameters was proposed to use the genetic algorithm. For efficacy analysis of the proposed algorithm, there are presented some case studies and practical applications.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"246 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":"114359325","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/DAS49615.2020.9108908
Eduard Zadobrischi
The chaotic increase in the number of vehicles and the population density makes road safety an important topic from all points of view. Urban planning and disorganization in terms of traffic efficiency and fluidization solutions cause massive traffic congestion in most cities around the world. The diversity of mechanisms and devices dedicated to the fluidization of traffic in pedestrian areas or pedestrian crossings does not offer safety to all categories of persons, here referring to the sick, elderly, children. A number of studies that have analyzed and focused on the field, offer solutions whereby a combination of vehicles and automated tools, used in conjunction with an efficient data communication type, can reduce traffic congestion problems and reduce traffic jams. Wireless communications technologies have the possibility of the dynamic and increase the security of the transmission mode. We can say that this article presents an overview. of the most important and promising technologies that can be. used in the applications dedicated to the road safety sector based on communication between cars. We propose a system prototype based on RF (Radio-Frequency) communications and VLC (Visible Light Communications) technology, thus making a promising alternative in the field. Based on these proposals, analyzes and simulations are performed on a hybrid architecture, offering results on performance evaluation of the solution.
{"title":"System Prototype Proposed for Vehicle Communications Based on VLC-RF Technologies Adaptable on Infrastructure","authors":"Eduard Zadobrischi","doi":"10.1109/DAS49615.2020.9108908","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108908","url":null,"abstract":"The chaotic increase in the number of vehicles and the population density makes road safety an important topic from all points of view. Urban planning and disorganization in terms of traffic efficiency and fluidization solutions cause massive traffic congestion in most cities around the world. The diversity of mechanisms and devices dedicated to the fluidization of traffic in pedestrian areas or pedestrian crossings does not offer safety to all categories of persons, here referring to the sick, elderly, children. A number of studies that have analyzed and focused on the field, offer solutions whereby a combination of vehicles and automated tools, used in conjunction with an efficient data communication type, can reduce traffic congestion problems and reduce traffic jams. Wireless communications technologies have the possibility of the dynamic and increase the security of the transmission mode. We can say that this article presents an overview. of the most important and promising technologies that can be. used in the applications dedicated to the road safety sector based on communication between cars. We propose a system prototype based on RF (Radio-Frequency) communications and VLC (Visible Light Communications) technology, thus making a promising alternative in the field. Based on these proposals, analyzes and simulations are performed on a hybrid architecture, offering results on performance evaluation of the solution.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"23 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":"132683390","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/DAS49615.2020.9108913
Onur Koca, O. Kaymakci, M. Mercimek
In production systems, the repeated breakdowns of the operation have to be taken into account with great importance. The continuation of long malfunctioning states as well as the temporary interventions involve excessive time and money costs. Industry 4.0 technologies extensively use real-time Big Data collected from the machinery, and this enables potential problems to be addressed and resolved before they become an avalanche for the company. Permanent solutions can be produced, and thereby production efficiency can be established. In this paper, utilizing the Mean Time to Failure (MTTF) values and the past breakdown history of the robot system of the production line an Artificial Neural Network (ANN) model is established for system failure prediction. The proposed model successfully manages predictive maintenance of the machinery without the use of Internet of Things (IoT) technology.
{"title":"Advanced Predictive Maintenance with Machine Learning Failure Estimation in Industrial Packaging Robots","authors":"Onur Koca, O. Kaymakci, M. Mercimek","doi":"10.1109/DAS49615.2020.9108913","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108913","url":null,"abstract":"In production systems, the repeated breakdowns of the operation have to be taken into account with great importance. The continuation of long malfunctioning states as well as the temporary interventions involve excessive time and money costs. Industry 4.0 technologies extensively use real-time Big Data collected from the machinery, and this enables potential problems to be addressed and resolved before they become an avalanche for the company. Permanent solutions can be produced, and thereby production efficiency can be established. In this paper, utilizing the Mean Time to Failure (MTTF) values and the past breakdown history of the robot system of the production line an Artificial Neural Network (ANN) model is established for system failure prediction. The proposed model successfully manages predictive maintenance of the machinery without the use of Internet of Things (IoT) technology.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","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":"130625230","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/DAS49615.2020.9108942
Marina Adriana Mercioni, S. Holban
This paper is an overview of the most used activation functions, classic functions and current functions as well. When we say classic, we mean the first activation functions, the most popular and used in the past. But due to their disadvantages appeared other new activation functions that we refer them as current. These most influential functions are among the most known artificial intelligence activation functions in the research of Machine learning and Deep Learning as well. With each function, we provide a brief description of the activation function, discuss its impact and show the domain where it is applicable, its advantages and disadvantages and more details to have an overview. These functions cover more issues like vanishing gradient, exploding gradient when we are using Gradient Descent and so on. These solutions to these issues are all among the most important topics in Artificial Intelligence research and development part.
{"title":"The Most Used Activation Functions: Classic Versus Current","authors":"Marina Adriana Mercioni, S. Holban","doi":"10.1109/DAS49615.2020.9108942","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108942","url":null,"abstract":"This paper is an overview of the most used activation functions, classic functions and current functions as well. When we say classic, we mean the first activation functions, the most popular and used in the past. But due to their disadvantages appeared other new activation functions that we refer them as current. These most influential functions are among the most known artificial intelligence activation functions in the research of Machine learning and Deep Learning as well. With each function, we provide a brief description of the activation function, discuss its impact and show the domain where it is applicable, its advantages and disadvantages and more details to have an overview. These functions cover more issues like vanishing gradient, exploding gradient when we are using Gradient Descent and so on. These solutions to these issues are all among the most important topics in Artificial Intelligence research and development part.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"40 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":"126600111","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/DAS49615.2020.9108928
Cătălin Beguni, A. Căilean, Sebastian-Andrei Avatamanitei, M. Dimian
To address the most common issues found in automotive Visible Light Communication applications, a new photodiode amplifier based on an instrumentation amplifier is proposed. In order to improve the results, buffer stages have been replaced with transimpedance amplifiers providing the circuit with offset cancellation loops that enable the sensing of the DC output offset and with T-networks in the feedback path, that reduce the effect of parasitic capacitances. Thus, the resulted output signal will be ready for further processing in the analog-digital conversion (ADC) stage providing improved results in terms of parasitic light resilience and SNR.
{"title":"Photodiode Amplifier with Transimpedance and Differential Stages for Automotive Visible Light Applications","authors":"Cătălin Beguni, A. Căilean, Sebastian-Andrei Avatamanitei, M. Dimian","doi":"10.1109/DAS49615.2020.9108928","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108928","url":null,"abstract":"To address the most common issues found in automotive Visible Light Communication applications, a new photodiode amplifier based on an instrumentation amplifier is proposed. In order to improve the results, buffer stages have been replaced with transimpedance amplifiers providing the circuit with offset cancellation loops that enable the sensing of the DC output offset and with T-networks in the feedback path, that reduce the effect of parasitic capacitances. Thus, the resulted output signal will be ready for further processing in the analog-digital conversion (ADC) stage providing improved results in terms of parasitic light resilience and SNR.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"48 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":"122698427","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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