Pub Date : 2020-05-01DOI: 10.1109/DAS49615.2020.9108915
Adrian Aiordachioae, O. Schipor, Radu-Daniel Vatavu
We present an inventory of voice commands to control assistive vision features on smartglasses. Toward this goal, we review 13 smartglasses prototypes designed for users with visual impairments, which we identified from a survey of more than 500 scientific papers and a survey of commercial smartglasses. We perform a meta-analysis of our findings according to a set of eleven categories of commands to effect for assistive smartglasses applications. Our results are useful to researchers and practitioners to inform design of voice input commands for smartglasses and users with visual impairments.
{"title":"An Inventory of Voice Input Commands for Users with Visual Impairments and Assistive Smartglasses Applications","authors":"Adrian Aiordachioae, O. Schipor, Radu-Daniel Vatavu","doi":"10.1109/DAS49615.2020.9108915","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108915","url":null,"abstract":"We present an inventory of voice commands to control assistive vision features on smartglasses. Toward this goal, we review 13 smartglasses prototypes designed for users with visual impairments, which we identified from a survey of more than 500 scientific papers and a survey of commercial smartglasses. We perform a meta-analysis of our findings according to a set of eleven categories of commands to effect for assistive smartglasses applications. Our results are useful to researchers and practitioners to inform design of voice input commands for smartglasses and users with visual impairments.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"6 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":"129616138","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/DAS49615.2020.9108963
Emanuela Bran, E. Băutu, D. Popovici
This article describes the main traits of a proposed Mixed Reality (MR) platform designed to be used by the general public in order to create and share MR experiences. The purpose of this MR Platform is to provide interaction with the Internet of Everything (IoE). We embrace the Ubiquitous computing paradigm, where services follow the user seamlessly across physical locations. An emphasis is made on context awareness, which is central in designing a MR application, by anchoring the right multimodal content to the right circumstance. We aim at providing an architecture which splits awareness into four levels with respect to knowledge representation, in order to provide a tool for non-programmers to design applications.
{"title":"Open Affordable Mixed Reality: A Manifesto","authors":"Emanuela Bran, E. Băutu, D. Popovici","doi":"10.1109/DAS49615.2020.9108963","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108963","url":null,"abstract":"This article describes the main traits of a proposed Mixed Reality (MR) platform designed to be used by the general public in order to create and share MR experiences. The purpose of this MR Platform is to provide interaction with the Internet of Everything (IoE). We embrace the Ubiquitous computing paradigm, where services follow the user seamlessly across physical locations. An emphasis is made on context awareness, which is central in designing a MR application, by anchoring the right multimodal content to the right circumstance. We aim at providing an architecture which splits awareness into four levels with respect to knowledge representation, in order to provide a tool for non-programmers to design applications.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"27 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":"124587719","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/DAS49615.2020.9108910
Roxana Toderean
Sensorimotor rhythms are represented by mu rhythm with 8-12Hz frequency band and beta rhythm with the 12-30Hz frequency range. The movement or preparation of the movement is typically accompanied by a decrease of the mu and beta rhythms, especially in the contralateral area of the movement, which is a piece of very important knowledge for the implementation of a brain computer interface. The EEG signal was recorded using 8 active electrodes placed in the motor areas of the scalp. Features extraction was performed by decomposing the original signal in subcomponents signal with the frequency band in the interest range using multiresolution wavelet analysis based Daubechies wavelets. Multi-layer perceptron neural networks (MLP-NN) method is utilized for the classification of the features. This classifier performs well, 95.45% was the maximum classification rate for the subjects involved in the study. The superiority of the classifier MLP-NN was sustained also by The Friedman Two-way Analysis of Variance (ANOVA) by Ranks Test.
{"title":"Classification of Sensorimotor Rhythms Based on Multi-layer Perceptron Neural Networks","authors":"Roxana Toderean","doi":"10.1109/DAS49615.2020.9108910","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108910","url":null,"abstract":"Sensorimotor rhythms are represented by mu rhythm with 8-12Hz frequency band and beta rhythm with the 12-30Hz frequency range. The movement or preparation of the movement is typically accompanied by a decrease of the mu and beta rhythms, especially in the contralateral area of the movement, which is a piece of very important knowledge for the implementation of a brain computer interface. The EEG signal was recorded using 8 active electrodes placed in the motor areas of the scalp. Features extraction was performed by decomposing the original signal in subcomponents signal with the frequency band in the interest range using multiresolution wavelet analysis based Daubechies wavelets. Multi-layer perceptron neural networks (MLP-NN) method is utilized for the classification of the features. This classifier performs well, 95.45% was the maximum classification rate for the subjects involved in the study. The superiority of the classifier MLP-NN was sustained also by The Friedman Two-way Analysis of Variance (ANOVA) by Ranks Test.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"27 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":"121501783","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/das49615.2020.9108950
{"title":"DAS 2020 Index Authors","authors":"","doi":"10.1109/das49615.2020.9108950","DOIUrl":"https://doi.org/10.1109/das49615.2020.9108950","url":null,"abstract":"","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":"115145245","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/DAS49615.2020.9108953
Lucian-Mihai Cosovanu, Adrian Done
Classical traffic light systems in various forms have served public transport for more than a hundred years now. Their basic principle is to inform drivers of all types of vehicles and also pedestrians of their current active status. The number of cars has increased drastically so that it is very common to get stuck in traffic in rush hours. The road infrastructures in cities use multiple lanes and also traffic lights to direct traffic and to ensure and safety. Today traffic lights can also be used simultaneously to establish communication between vehicles and infrastructure with the help of visible light communication (VLC). This new feature could be key in attempting to diminish road accidents with the use of important information. Real-time analysis of traffic information is required in order to pass relevant information to the driver. This can be gained with an interconnected infrastructure throughout the city. Therefore when a certain level of traffic is reached, redirection of traffic would prevent traffic jams, and also urgent messages like an incoming ambulance/fire truck/police car in the mission would be passed to drivers to allow free passage. In this era of information, informing prevents panic and also the sudden course of action. This paper describes the development of such capable traffic light, based on OLED decorative panels. The obtained traffic light system has been tested indoor for its suitability for vehicular applications.
{"title":"Development of Visible Light Communication System for Automotive Applications Based on Organic Light Emitting Diode Panels","authors":"Lucian-Mihai Cosovanu, Adrian Done","doi":"10.1109/DAS49615.2020.9108953","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108953","url":null,"abstract":"Classical traffic light systems in various forms have served public transport for more than a hundred years now. Their basic principle is to inform drivers of all types of vehicles and also pedestrians of their current active status. The number of cars has increased drastically so that it is very common to get stuck in traffic in rush hours. The road infrastructures in cities use multiple lanes and also traffic lights to direct traffic and to ensure and safety. Today traffic lights can also be used simultaneously to establish communication between vehicles and infrastructure with the help of visible light communication (VLC). This new feature could be key in attempting to diminish road accidents with the use of important information. Real-time analysis of traffic information is required in order to pass relevant information to the driver. This can be gained with an interconnected infrastructure throughout the city. Therefore when a certain level of traffic is reached, redirection of traffic would prevent traffic jams, and also urgent messages like an incoming ambulance/fire truck/police car in the mission would be passed to drivers to allow free passage. In this era of information, informing prevents panic and also the sudden course of action. This paper describes the development of such capable traffic light, based on OLED decorative panels. The obtained traffic light system has been tested indoor for its suitability for vehicular applications.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","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":"126890231","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/DAS49615.2020.9108948
V. Mukhin, Vitalii Statkevych
We consider the producer/consumer Petri net and the context-free formal language that it generates. Nonregularity of the language is proved, the corresponding pushdown automaton and context-free grammar are obtained. The connection with the Dyck formal language is pointed out.
{"title":"On one context-free language for producer/consumer Petri net with the unbounded buffer","authors":"V. Mukhin, Vitalii Statkevych","doi":"10.1109/DAS49615.2020.9108948","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108948","url":null,"abstract":"We consider the producer/consumer Petri net and the context-free formal language that it generates. Nonregularity of the language is proved, the corresponding pushdown automaton and context-free grammar are obtained. The connection with the Dyck formal language is pointed out.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"71 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":"126155050","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/DAS49615.2020.9108914
M. Nicola, C. Nicola, M. Duta
This article presents the sensorless control system of a Permanent Magnet Synchronous Motor (PMSM), where the speed controller consists of a Multiple - Artificial Neural Networks (M-ANN) and the rotor speed is provided by a Sliding Mode Observer (SMO). The performance of the proposed control system is presented in comparison with the classic Field Oriented Control (FOC) system. The implementation of a load torque observer allows the selection of a specially trained corresponding ANN to obtain optimum performance over the load torque variation ranges. The PMSM equations, the speed and load torque observers equations, the main blocks and control structures, their parameterizations and the results of the numerical simulations obtained are presented. The good results obtained as a result of the numerical simulations involving the use of the usual Simulink and Stateflow blocks, which can be implemented in embedded systems recommend the real-time implementation of the proposed PMSM control system.
{"title":"Sensorless Control of PMSM using FOC Strategy Based on Multiple ANN and Load Torque Observer","authors":"M. Nicola, C. Nicola, M. Duta","doi":"10.1109/DAS49615.2020.9108914","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108914","url":null,"abstract":"This article presents the sensorless control system of a Permanent Magnet Synchronous Motor (PMSM), where the speed controller consists of a Multiple - Artificial Neural Networks (M-ANN) and the rotor speed is provided by a Sliding Mode Observer (SMO). The performance of the proposed control system is presented in comparison with the classic Field Oriented Control (FOC) system. The implementation of a load torque observer allows the selection of a specially trained corresponding ANN to obtain optimum performance over the load torque variation ranges. The PMSM equations, the speed and load torque observers equations, the main blocks and control structures, their parameterizations and the results of the numerical simulations obtained are presented. The good results obtained as a result of the numerical simulations involving the use of the usual Simulink and Stateflow blocks, which can be implemented in embedded systems recommend the real-time implementation of the proposed PMSM control system.","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":"129332877","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/DAS49615.2020.9108939
A. Samila, S. Haliuk, Oleh Krulikovskyi
The principles of structural and functional synthesis of the radio-electronic means of a pulsed NQR are presented. To simulate signal transformations in the radio frequency paths of the spectrometer, an imitation model of the direct pulsed NQR observation method was developed in the MATLAB Simulink software. The feature of the proposed measuring setup is the implementation of all algorithms for digital processing and signal synthesis in the basis of one FPGA Cyclone IV. The NQR spectrum is reconstructed from the spin induction signal using the fast Fourier transform method.
{"title":"Structural and Functional Synthesis of the Radioelectronic Means of a Pulsed NQR","authors":"A. Samila, S. Haliuk, Oleh Krulikovskyi","doi":"10.1109/DAS49615.2020.9108939","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108939","url":null,"abstract":"The principles of structural and functional synthesis of the radio-electronic means of a pulsed NQR are presented. To simulate signal transformations in the radio frequency paths of the spectrometer, an imitation model of the direct pulsed NQR observation method was developed in the MATLAB Simulink software. The feature of the proposed measuring setup is the implementation of all algorithms for digital processing and signal synthesis in the basis of one FPGA Cyclone IV. The NQR spectrum is reconstructed from the spin induction signal using the fast Fourier transform method.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"18 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":"132378947","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/DAS49615.2020.9108916
Irina Popovici
We analyze the accuracy of a Thalmic Myo armband in regards to short-range pointing interfaces. Through an experiment with multiple trials, we investigate the factors that could have an impact on the recognition rate. We found that removing the armband between sessions of use and a small spatial distance between pointing locations have a negative impact on the accuracy. By applying an exploratory approach, we found a configuration with a 97.3% recognition rate.
{"title":"Experimental Results on the Accuracy of the Myo Armband for Short-Range Pointing Tasks","authors":"Irina Popovici","doi":"10.1109/DAS49615.2020.9108916","DOIUrl":"https://doi.org/10.1109/DAS49615.2020.9108916","url":null,"abstract":"We analyze the accuracy of a Thalmic Myo armband in regards to short-range pointing interfaces. Through an experiment with multiple trials, we investigate the factors that could have an impact on the recognition rate. We found that removing the armband between sessions of use and a small spatial distance between pointing locations have a negative impact on the accuracy. By applying an exploratory approach, we found a configuration with a 97.3% recognition rate.","PeriodicalId":103267,"journal":{"name":"2020 International Conference on Development and Application Systems (DAS)","volume":"77 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":"116359059","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/DAS49615.2020.9108977
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}
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