Pub Date : 2017-11-01DOI: 10.1109/AIEEE.2017.8270523
F. Grasso, A. Luchetta, S. Manetti, M. C. Piccirilli, A. Reatti
This paper presents a completely renewed technique developed to locate single parametric faults in analog circuits by means of multi-frequency measurements or simulations, following a rigorous approach. The technique is composed by three separated stages, a first one which evaluates the testability and ambiguity groups of the Circuit Under Test (CUT), a second one which localizes the fault classifying it in an appropriate Fault Class (FC) and a last one (optional) that can extract the value of the faulty component. The manufacturing tolerances of the healthy components are taken into account at each stage of the method.
{"title":"Single fault diagnosis in analog circuits: A multi-step approach","authors":"F. Grasso, A. Luchetta, S. Manetti, M. C. Piccirilli, A. Reatti","doi":"10.1109/AIEEE.2017.8270523","DOIUrl":"https://doi.org/10.1109/AIEEE.2017.8270523","url":null,"abstract":"This paper presents a completely renewed technique developed to locate single parametric faults in analog circuits by means of multi-frequency measurements or simulations, following a rigorous approach. The technique is composed by three separated stages, a first one which evaluates the testability and ambiguity groups of the Circuit Under Test (CUT), a second one which localizes the fault classifying it in an appropriate Fault Class (FC) and a last one (optional) that can extract the value of the faulty component. The manufacturing tolerances of the healthy components are taken into account at each stage of the method.","PeriodicalId":224275,"journal":{"name":"2017 5th IEEE Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125833611","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 : 2017-11-01DOI: 10.1109/AIEEE.2017.8270547
Mara Pudane
Agent based modelling is a paradigm that is widely used to simulate and research systems where each entity is autonomous and behaves independently. Currently, there are many diverse agent based models, however, aside from general guidelines there are no particular analysis of how such models should be designed and implemented. On the other hand, any agent based model can be broken into a single agent and a system level; these abstraction levels are used in the design of multi-agent systems, moreover, agent based models are often implemented using mechanisms and tools from multi-agent systems. Author proposes that one of the ways this problem could be solved is classification of agent-based models from the perspective of multi-agent systems which is then used to provide decision support for the design of agent-based models.
{"title":"Classification of agent-based models from the perspective of multi-agent systems","authors":"Mara Pudane","doi":"10.1109/AIEEE.2017.8270547","DOIUrl":"https://doi.org/10.1109/AIEEE.2017.8270547","url":null,"abstract":"Agent based modelling is a paradigm that is widely used to simulate and research systems where each entity is autonomous and behaves independently. Currently, there are many diverse agent based models, however, aside from general guidelines there are no particular analysis of how such models should be designed and implemented. On the other hand, any agent based model can be broken into a single agent and a system level; these abstraction levels are used in the design of multi-agent systems, moreover, agent based models are often implemented using mechanisms and tools from multi-agent systems. Author proposes that one of the ways this problem could be solved is classification of agent-based models from the perspective of multi-agent systems which is then used to provide decision support for the design of agent-based models.","PeriodicalId":224275,"journal":{"name":"2017 5th IEEE Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129367266","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 : 2017-11-01DOI: 10.1109/AIEEE.2017.8270553
Matīss Stunda
A power supply design has been suggested and examined for high current, low duty-cycle pulsed loads, specifically — aluminum spot welding inverters. Through the use of energy storage the power supply design aims at an input current that is equally distributed through time, thus preventing grid connection over-dimensioning and avoiding transient stresses to the grid. A converter topology has been proposed for controlled charging and discharging of a capacitor bank. The performance has been verified through simulation using Matlab Simulink. A scaled prototype of the capacitor discharge converter has been assembled and tested. Experimental results show that high energy controlled capacitor discharging is possible with the chosen methods.
{"title":"Pulsed load power supply with energy storage for aluminum spot welding","authors":"Matīss Stunda","doi":"10.1109/AIEEE.2017.8270553","DOIUrl":"https://doi.org/10.1109/AIEEE.2017.8270553","url":null,"abstract":"A power supply design has been suggested and examined for high current, low duty-cycle pulsed loads, specifically — aluminum spot welding inverters. Through the use of energy storage the power supply design aims at an input current that is equally distributed through time, thus preventing grid connection over-dimensioning and avoiding transient stresses to the grid. A converter topology has been proposed for controlled charging and discharging of a capacitor bank. The performance has been verified through simulation using Matlab Simulink. A scaled prototype of the capacitor discharge converter has been assembled and tested. Experimental results show that high energy controlled capacitor discharging is possible with the chosen methods.","PeriodicalId":224275,"journal":{"name":"2017 5th IEEE Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132178954","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 : 2017-11-01DOI: 10.1109/AIEEE.2017.8270526
I. Zālītis, A. Dolgicers, J. Kozadajevs
This paper present an experimental comparison study of the distance protection operation during metallic earth faults, earth faults with constant fault arc resistance and faults with constant fault arc resistance and additional transient ground path resistance. The aim of this study is to recreate “in vitro” conditions when distance protection maloperated during fallen tree fault. Such earth faults are more common in the region and they are known as “weak points” of distance protection. The tests were performed by simulating the faults in MATLAB SimPowerSystems environment. The obtained transient waveforms of currents and voltages were then comtraded to ISA TDMS system, via which the output signals, provided to the digital relays, were generated. As a result an environment for testing of distance protection performance during fallen tree faults was created. This provides an opportunity to find possible errors of the existing distance protection algorithms and develop more robust ones.
{"title":"Experimental testing of distance protection performance in transient fault path resistance environment","authors":"I. Zālītis, A. Dolgicers, J. Kozadajevs","doi":"10.1109/AIEEE.2017.8270526","DOIUrl":"https://doi.org/10.1109/AIEEE.2017.8270526","url":null,"abstract":"This paper present an experimental comparison study of the distance protection operation during metallic earth faults, earth faults with constant fault arc resistance and faults with constant fault arc resistance and additional transient ground path resistance. The aim of this study is to recreate “in vitro” conditions when distance protection maloperated during fallen tree fault. Such earth faults are more common in the region and they are known as “weak points” of distance protection. The tests were performed by simulating the faults in MATLAB SimPowerSystems environment. The obtained transient waveforms of currents and voltages were then comtraded to ISA TDMS system, via which the output signals, provided to the digital relays, were generated. As a result an environment for testing of distance protection performance during fallen tree faults was created. This provides an opportunity to find possible errors of the existing distance protection algorithms and develop more robust ones.","PeriodicalId":224275,"journal":{"name":"2017 5th IEEE Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114779133","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 : 2017-11-01DOI: 10.1109/AIEEE.2017.8270552
G. Gaigals, E. Vavilina
Nowadays drones and RC planes come more and more popular since they are widely available. People enjoy filming from drones even in drone strictly forbidden places ignoring prohibition signs. That often makes problems for specialists working in an environment with demanded radio emission free zone. To avoid drones from flying in prohibited areas a drone radar is needed. This paper represents feasibility study on passive radar for drone detection using novel signal processing technique and Monte Carlo method. Radar simulation was made to study impact of different factors on the drone detection quality simulating different antennas setups: regular and irregular placement of the antennas, similar and different directivity antennas, stationary and randomly pointed antennas. Results show the impact of different drone quantity, antennas directivity, antennas placement, antennas rotation on the drone detection quality.
{"title":"Simulation of compressed sensing based passive radar for drone detection","authors":"G. Gaigals, E. Vavilina","doi":"10.1109/AIEEE.2017.8270552","DOIUrl":"https://doi.org/10.1109/AIEEE.2017.8270552","url":null,"abstract":"Nowadays drones and RC planes come more and more popular since they are widely available. People enjoy filming from drones even in drone strictly forbidden places ignoring prohibition signs. That often makes problems for specialists working in an environment with demanded radio emission free zone. To avoid drones from flying in prohibited areas a drone radar is needed. This paper represents feasibility study on passive radar for drone detection using novel signal processing technique and Monte Carlo method. Radar simulation was made to study impact of different factors on the drone detection quality simulating different antennas setups: regular and irregular placement of the antennas, similar and different directivity antennas, stationary and randomly pointed antennas. Results show the impact of different drone quantity, antennas directivity, antennas placement, antennas rotation on the drone detection quality.","PeriodicalId":224275,"journal":{"name":"2017 5th IEEE Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132904815","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 : 2017-11-01DOI: 10.1109/AIEEE.2017.8270532
I. Krikun
The paper is aimed to analyse application of learning analytics (LA) methods to enhance learning quality and effectiveness in virtual learning environments (VLEs) by the means of learning personalisation. Since study and learning processes significantly moved to virtual environment, it is very important to analyse what is state-of-the-art in the area. Therefore, first of all, systematic review has been performed. The data collected from VLEs can be aggregated over large numbers of students and can contain many variables that LA / educational data mining (EDM) algorithms can explore for model building. Research presented in the paper has also shown that these LA methods and techniques could be successfully used to enhance learning quality and effectiveness by the means of learning personalisation in VLEs. In the paper, five-stage methodology is presented aimed at enhancing students' learning quality and effectiveness.
{"title":"Applying learning analytics methods to enhance learning quality and effectiveness in virtual learning environments","authors":"I. Krikun","doi":"10.1109/AIEEE.2017.8270532","DOIUrl":"https://doi.org/10.1109/AIEEE.2017.8270532","url":null,"abstract":"The paper is aimed to analyse application of learning analytics (LA) methods to enhance learning quality and effectiveness in virtual learning environments (VLEs) by the means of learning personalisation. Since study and learning processes significantly moved to virtual environment, it is very important to analyse what is state-of-the-art in the area. Therefore, first of all, systematic review has been performed. The data collected from VLEs can be aggregated over large numbers of students and can contain many variables that LA / educational data mining (EDM) algorithms can explore for model building. Research presented in the paper has also shown that these LA methods and techniques could be successfully used to enhance learning quality and effectiveness by the means of learning personalisation in VLEs. In the paper, five-stage methodology is presented aimed at enhancing students' learning quality and effectiveness.","PeriodicalId":224275,"journal":{"name":"2017 5th IEEE Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115695108","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 : 2017-11-01DOI: 10.1109/AIEEE.2017.8270540
G. Staigvila, V. Novickij
Electroporation by Pulsed ElectroMagnetic Field (PEMF) is a novel, non-invasive technique, which has high potential and applicability in biomedicine and biotechnology. In this work, we present a concept of a high dB/dt and high power system (kA, kV range) for further application in PEMF electroporation experiments. The concept includes an array of synchronized SCRs (silicon controlled rectifiers) driving a high power ignitron. A pulsed power inductor is used as a load. The parameters of the system are selected based on the experimental results with a Marx generator circuit, which was used as a proof of concept. Finite element method (FEM) simulation of the expected spatial distribution of pulsed magnetic field is also presented in the study.
{"title":"Concept of high dB/dt pulse forming system for biological cell membrane permeabilization","authors":"G. Staigvila, V. Novickij","doi":"10.1109/AIEEE.2017.8270540","DOIUrl":"https://doi.org/10.1109/AIEEE.2017.8270540","url":null,"abstract":"Electroporation by Pulsed ElectroMagnetic Field (PEMF) is a novel, non-invasive technique, which has high potential and applicability in biomedicine and biotechnology. In this work, we present a concept of a high dB/dt and high power system (kA, kV range) for further application in PEMF electroporation experiments. The concept includes an array of synchronized SCRs (silicon controlled rectifiers) driving a high power ignitron. A pulsed power inductor is used as a load. The parameters of the system are selected based on the experimental results with a Marx generator circuit, which was used as a proof of concept. Finite element method (FEM) simulation of the expected spatial distribution of pulsed magnetic field is also presented in the study.","PeriodicalId":224275,"journal":{"name":"2017 5th IEEE Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122576470","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 : 2017-11-01DOI: 10.1109/AIEEE.2017.8270538
L. Kohútka, V. Stopjaková
This paper presents the design of a coprocessor that performs an efficient task scheduling for quad-core real-time systems. The proposed solution is based on two algorithms: Earliest Deadline First (EDF) algorithm that is proved to always find an optimum ordering of hard real-time tasks and the priority-based FCFS algorithm, which is suitable for non-real-time tasks. The proposed coprocessor can efficiently handle any combination of both types of tasks even though they use different parameters for scheduling. Thanks to HW implementation of the scheduler, the operations are performed in two clock cycles regardless of the current and the maximum number of tasks in the system. The proposed coprocessor is optimized for quad-core CPUs, which can lead to much higher performance of real-time embedded systems than the other schedulers. An existing approach originally designed for dual-core systems was used, known as semaphore approach. The new scheduler was verified using UVM and 256 million instructions with randomly generated deadline/priority values. The synthesis results of the new coprocessor designed for quad-core CPUs were compared to the synthesis results of previous versions of the scheduler. The quad-core version of the scheduler consumes only from 1% to 27% more LUTs than the single-core version.
{"title":"Extension of hardware-accelerated real-time task schedulers for support of quad-core processors","authors":"L. Kohútka, V. Stopjaková","doi":"10.1109/AIEEE.2017.8270538","DOIUrl":"https://doi.org/10.1109/AIEEE.2017.8270538","url":null,"abstract":"This paper presents the design of a coprocessor that performs an efficient task scheduling for quad-core real-time systems. The proposed solution is based on two algorithms: Earliest Deadline First (EDF) algorithm that is proved to always find an optimum ordering of hard real-time tasks and the priority-based FCFS algorithm, which is suitable for non-real-time tasks. The proposed coprocessor can efficiently handle any combination of both types of tasks even though they use different parameters for scheduling. Thanks to HW implementation of the scheduler, the operations are performed in two clock cycles regardless of the current and the maximum number of tasks in the system. The proposed coprocessor is optimized for quad-core CPUs, which can lead to much higher performance of real-time embedded systems than the other schedulers. An existing approach originally designed for dual-core systems was used, known as semaphore approach. The new scheduler was verified using UVM and 256 million instructions with randomly generated deadline/priority values. The synthesis results of the new coprocessor designed for quad-core CPUs were compared to the synthesis results of previous versions of the scheduler. The quad-core version of the scheduler consumes only from 1% to 27% more LUTs than the single-core version.","PeriodicalId":224275,"journal":{"name":"2017 5th IEEE Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126160178","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 : 2017-11-01DOI: 10.1109/AIEEE.2017.8270537
E. Šabanovič, D. Matuzevičius
Retinal imaging is an important test for diagnosis of eye diseases and treatment evaluation. One of the steps in eye fundus image processing is image registration. It is inevitable in order to eliminate geometrical differences, introduced during imaging with different settings or pursuing follow up disease screenings. One of available strategies for image alignment is feature-based approach where feature descriptors have an important role in registration process. The quality of feature descriptors affects feature matching performance and overall results of image registration. In this paper we present a comparison of various feature extractors in tandem with conventional, bio-inspired or deep neural network-based local feature detectors applied for retinal image registration. Comparative evaluation of descriptors has been carried out using Fundus Image Registration Dataset, measuring Euclidean distance between ground truth points after image alignment. We present the results showing the performance of various feature detector-descriptor pairs applied for retinal image registration.
{"title":"Experimental investigation of feature descriptors for retinal image registration","authors":"E. Šabanovič, D. Matuzevičius","doi":"10.1109/AIEEE.2017.8270537","DOIUrl":"https://doi.org/10.1109/AIEEE.2017.8270537","url":null,"abstract":"Retinal imaging is an important test for diagnosis of eye diseases and treatment evaluation. One of the steps in eye fundus image processing is image registration. It is inevitable in order to eliminate geometrical differences, introduced during imaging with different settings or pursuing follow up disease screenings. One of available strategies for image alignment is feature-based approach where feature descriptors have an important role in registration process. The quality of feature descriptors affects feature matching performance and overall results of image registration. In this paper we present a comparison of various feature extractors in tandem with conventional, bio-inspired or deep neural network-based local feature detectors applied for retinal image registration. Comparative evaluation of descriptors has been carried out using Fundus Image Registration Dataset, measuring Euclidean distance between ground truth points after image alignment. We present the results showing the performance of various feature detector-descriptor pairs applied for retinal image registration.","PeriodicalId":224275,"journal":{"name":"2017 5th IEEE Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126325691","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 : 2017-11-01DOI: 10.1109/AIEEE.2017.8270545
Leonid Kladovscikov, R. Navickas
Integrated circuit fabrication technological processes affect error of transceiver's parameters. Such deviation of parameters are meant to be estimated and tuned up to desired. This paper describes self-test and self-calibration systems of active RC low pass filters. Main parameters to be estimated and tuned are cut-off frequency, gain and band-pass linearity. Self-calibration system is designed in 0.18 μm technology node, with 1.8 V supply voltage for 10 MHz application. Designed self-calibration system tuning accuracy varies from 0.8 % to 1 %.
{"title":"Design of self-test and self-calibration systems for analog active RC filters","authors":"Leonid Kladovscikov, R. Navickas","doi":"10.1109/AIEEE.2017.8270545","DOIUrl":"https://doi.org/10.1109/AIEEE.2017.8270545","url":null,"abstract":"Integrated circuit fabrication technological processes affect error of transceiver's parameters. Such deviation of parameters are meant to be estimated and tuned up to desired. This paper describes self-test and self-calibration systems of active RC low pass filters. Main parameters to be estimated and tuned are cut-off frequency, gain and band-pass linearity. Self-calibration system is designed in 0.18 μm technology node, with 1.8 V supply voltage for 10 MHz application. Designed self-calibration system tuning accuracy varies from 0.8 % to 1 %.","PeriodicalId":224275,"journal":{"name":"2017 5th IEEE Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125952846","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：