Pub Date : 2016-10-01DOI: 10.1109/ETCM.2016.7750865
R. Clotet, E. Hernández, M. Huerta
In Venezuela and other countries where it coexists public health system and a private one, we find a variety of organizations that present health services. Even though we have a strong public system, we often find that each health center uses different Electronic Medical Record systems, hindering data sharing for improved patient care. One of the strongest challenges for the integration of all databases in the health system is to have a system for synchronizing heterogeneous databases. In this article synchronization and data sharing mechanisms are proposed to achieve an integrated health system.
{"title":"EMR system synchronization","authors":"R. Clotet, E. Hernández, M. Huerta","doi":"10.1109/ETCM.2016.7750865","DOIUrl":"https://doi.org/10.1109/ETCM.2016.7750865","url":null,"abstract":"In Venezuela and other countries where it coexists public health system and a private one, we find a variety of organizations that present health services. Even though we have a strong public system, we often find that each health center uses different Electronic Medical Record systems, hindering data sharing for improved patient care. One of the strongest challenges for the integration of all databases in the health system is to have a system for synchronizing heterogeneous databases. In this article synchronization and data sharing mechanisms are proposed to achieve an integrated health system.","PeriodicalId":6480,"journal":{"name":"2016 IEEE Ecuador Technical Chapters Meeting (ETCM)","volume":"48 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74055656","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 : 2016-10-01DOI: 10.1109/ETCM.2016.7750844
Carlos Flores-Vazquez, Joan Aranda
This paper presents a real time approach to the recognition of human activity based on the interaction between people and objects in domestic settings, specifically in a kitchen. Regarding the procedure, it is based on capturing partial images where the activity takes place using a colour camera, and processing the images to recognize the present objects and their location. For object description and recognition, a histogram on rg chromaticity space has been selected. The interaction with the objects is classified into four types of possible actions; (unchanged, add, remove or move). Activities are defined as recipes, where objects play the role of ingredients, tools or substitutes. Sensed objects and actions are then used to analyze in real time the probability of the human activity performed at a particular moment in a continuous activity sequence.
{"title":"Human activity recognition from object interaction in domestic scenarios","authors":"Carlos Flores-Vazquez, Joan Aranda","doi":"10.1109/ETCM.2016.7750844","DOIUrl":"https://doi.org/10.1109/ETCM.2016.7750844","url":null,"abstract":"This paper presents a real time approach to the recognition of human activity based on the interaction between people and objects in domestic settings, specifically in a kitchen. Regarding the procedure, it is based on capturing partial images where the activity takes place using a colour camera, and processing the images to recognize the present objects and their location. For object description and recognition, a histogram on rg chromaticity space has been selected. The interaction with the objects is classified into four types of possible actions; (unchanged, add, remove or move). Activities are defined as recipes, where objects play the role of ingredients, tools or substitutes. Sensed objects and actions are then used to analyze in real time the probability of the human activity performed at a particular moment in a continuous activity sequence.","PeriodicalId":6480,"journal":{"name":"2016 IEEE Ecuador Technical Chapters Meeting (ETCM)","volume":"54 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91074112","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 : 2016-10-01DOI: 10.1109/ETCM.2016.7857653
A. Renault, M. Riveray, L. Comparatore, J. Pacher, J. Rodas, R. Gregor
In this paper, a scheme for reactive power compensation and neutral current elimination based on model predictive control strategy is proposed. In this context, a H-bridge four-wire two-level active power filter is presented. The main feature of the proposed method focuses on the compensation of reactive power and neutral current elimination for unbalanced load in order to improve the power factor. This approach predicts the future behavior of the control actions considering all possible switching states. The proposed method selects the optimal switching vector by using an optimization process considering a defined cost function. The effectiveness of the proposed control approach is evaluated through simulations.
{"title":"Model predictive current control with neutral current elimination for H-bridge two-level active power filters","authors":"A. Renault, M. Riveray, L. Comparatore, J. Pacher, J. Rodas, R. Gregor","doi":"10.1109/ETCM.2016.7857653","DOIUrl":"https://doi.org/10.1109/ETCM.2016.7857653","url":null,"abstract":"In this paper, a scheme for reactive power compensation and neutral current elimination based on model predictive control strategy is proposed. In this context, a H-bridge four-wire two-level active power filter is presented. The main feature of the proposed method focuses on the compensation of reactive power and neutral current elimination for unbalanced load in order to improve the power factor. This approach predicts the future behavior of the control actions considering all possible switching states. The proposed method selects the optimal switching vector by using an optimization process considering a defined cost function. The effectiveness of the proposed control approach is evaluated through simulations.","PeriodicalId":6480,"journal":{"name":"2016 IEEE Ecuador Technical Chapters Meeting (ETCM)","volume":"30 2 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90071594","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 : 2016-10-01DOI: 10.1109/ETCM.2016.7750854
Miguel Vivert, D. Patiño, G. Becerra, R. Díez
This article presents a study of a design of four controllers to a ladder converter modeled by the generalized equivalent continuous model. Two controllers are designed minimizing the energy of the input and minimizing the states; and the other two controllers are designed minimizing the changes in the input, and the states. Also, the article shows a Kalman filter with shaping noise filter to estimate the states of the system. The use of a Kalman filter with shaping noise filter is necessary because the output voltage presents a high ripple. The shaping noise filter is designed with the three highest harmonics components of the output voltage. The article shows the simulation results of the controllers with changes in the voltage reference, disturbance in the input voltage, and changes in the load.
{"title":"LQI controllers for a ladder converter modeled by generalized equivalent continuous model","authors":"Miguel Vivert, D. Patiño, G. Becerra, R. Díez","doi":"10.1109/ETCM.2016.7750854","DOIUrl":"https://doi.org/10.1109/ETCM.2016.7750854","url":null,"abstract":"This article presents a study of a design of four controllers to a ladder converter modeled by the generalized equivalent continuous model. Two controllers are designed minimizing the energy of the input and minimizing the states; and the other two controllers are designed minimizing the changes in the input, and the states. Also, the article shows a Kalman filter with shaping noise filter to estimate the states of the system. The use of a Kalman filter with shaping noise filter is necessary because the output voltage presents a high ripple. The shaping noise filter is designed with the three highest harmonics components of the output voltage. The article shows the simulation results of the controllers with changes in the voltage reference, disturbance in the input voltage, and changes in the load.","PeriodicalId":6480,"journal":{"name":"2016 IEEE Ecuador Technical Chapters Meeting (ETCM)","volume":"51 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90364412","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 : 2016-10-01DOI: 10.1109/ETCM.2016.7750838
Marcelo V. García, E. Irisarri, F. Pérez, E. Estévez, M. Marcos
Low Cost Automation promotes cost effective reference architectures and development approaches to increase flexibility and efficiency of production operations. This has led to the adoption of open networking standards for plant floor communications. OPC-UA may help industrial companies to become Industry 4.0 or Smart Manufacturing as it enables remote access to plant information, achieving thus horizontal and vertical integration. The main goal of this work is to make vertical integration a reality by means of a low-cost CPPS architecture that provide access to process data. The use of this architecture along the whole production automation system may certainly reduce the Total Cost of Ownership (TCO). The paper describes both the hardware platform as well as the software including the proposed configuration file of the OPC-UA server.
{"title":"OPC-UA communications integration using a CPPS architecture","authors":"Marcelo V. García, E. Irisarri, F. Pérez, E. Estévez, M. Marcos","doi":"10.1109/ETCM.2016.7750838","DOIUrl":"https://doi.org/10.1109/ETCM.2016.7750838","url":null,"abstract":"Low Cost Automation promotes cost effective reference architectures and development approaches to increase flexibility and efficiency of production operations. This has led to the adoption of open networking standards for plant floor communications. OPC-UA may help industrial companies to become Industry 4.0 or Smart Manufacturing as it enables remote access to plant information, achieving thus horizontal and vertical integration. The main goal of this work is to make vertical integration a reality by means of a low-cost CPPS architecture that provide access to process data. The use of this architecture along the whole production automation system may certainly reduce the Total Cost of Ownership (TCO). The paper describes both the hardware platform as well as the software including the proposed configuration file of the OPC-UA server.","PeriodicalId":6480,"journal":{"name":"2016 IEEE Ecuador Technical Chapters Meeting (ETCM)","volume":"126 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88680648","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 : 2016-10-01DOI: 10.1109/ETCM.2016.7750822
Santiago Nunez-Godoy, Vanessa E. Alvear-Puertas, Staling Realpe-Godoy, Edwin Pujota-Cuascota, Henry Farinango-Endara, Iván Navarrete-Insuasti, Franklin Vaca-Chapi, P. Rosero-Montalvo, D. Peluffo
The research area of sitting-pose analysis allows for preventing a range of physical health problems mainly physical. Despite that different systems have been proposed for sitting-pose detection, some open issues are still to be dealt with, such as: Cost, computational load, accuracy, portability, and among others. In this work, we present an alternative approach based on a sensor network to acquire the position-related variables and machine learning techniques, namely dimensionality reduction (DR) and classification. Since the information acquired by sensors is high-dimensional and therefore it might not be saved into embedded system memory, a DR stage based on principal component analysis (PCA) is performed. Subsequently, the automatic posed detection is carried out by the k-nearest neighbors (KNN) classifier. As a result, regarding using the whole data set, the computational cost is decreased by 33 % as well as the data reading is reduced by 10 ms. Then, sitting-pose detection task takes 26 ms, and reaches 75% of accuracy in a 4-trial experiment.
{"title":"Human-sitting-pose detection using data classification and dimensionality reduction","authors":"Santiago Nunez-Godoy, Vanessa E. Alvear-Puertas, Staling Realpe-Godoy, Edwin Pujota-Cuascota, Henry Farinango-Endara, Iván Navarrete-Insuasti, Franklin Vaca-Chapi, P. Rosero-Montalvo, D. Peluffo","doi":"10.1109/ETCM.2016.7750822","DOIUrl":"https://doi.org/10.1109/ETCM.2016.7750822","url":null,"abstract":"The research area of sitting-pose analysis allows for preventing a range of physical health problems mainly physical. Despite that different systems have been proposed for sitting-pose detection, some open issues are still to be dealt with, such as: Cost, computational load, accuracy, portability, and among others. In this work, we present an alternative approach based on a sensor network to acquire the position-related variables and machine learning techniques, namely dimensionality reduction (DR) and classification. Since the information acquired by sensors is high-dimensional and therefore it might not be saved into embedded system memory, a DR stage based on principal component analysis (PCA) is performed. Subsequently, the automatic posed detection is carried out by the k-nearest neighbors (KNN) classifier. As a result, regarding using the whole data set, the computational cost is decreased by 33 % as well as the data reading is reduced by 10 ms. Then, sitting-pose detection task takes 26 ms, and reaches 75% of accuracy in a 4-trial experiment.","PeriodicalId":6480,"journal":{"name":"2016 IEEE Ecuador Technical Chapters Meeting (ETCM)","volume":"48 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89126856","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 : 2016-10-01DOI: 10.1109/ETCM.2016.7750834
E. Astaiza, Pablo E. Jojoa, Francisco Novillo
In this paper, a novel wideband spectrum sensing algorithm based on Compressive Sensing (CS) and reconstruction of second order signal statistics from covariance matrix of the acquired samples for Cognitive Radio (CR) systems is presented. This allows cognitive users to sense the spectrum without apriori knowledge of signal characteristics in the radio environment by minimizing the amount of samples to be processed. Simulation results show that the proposed algorithm allows to sense the spectrum efficiently, improving the performance in terms of detection probability, false alarm probability and miss detection probability regarding previously proposed algorithms.
{"title":"Energy wideband spectrum sensing based on SubNyquist sampling and second order statistics","authors":"E. Astaiza, Pablo E. Jojoa, Francisco Novillo","doi":"10.1109/ETCM.2016.7750834","DOIUrl":"https://doi.org/10.1109/ETCM.2016.7750834","url":null,"abstract":"In this paper, a novel wideband spectrum sensing algorithm based on Compressive Sensing (CS) and reconstruction of second order signal statistics from covariance matrix of the acquired samples for Cognitive Radio (CR) systems is presented. This allows cognitive users to sense the spectrum without apriori knowledge of signal characteristics in the radio environment by minimizing the amount of samples to be processed. Simulation results show that the proposed algorithm allows to sense the spectrum efficiently, improving the performance in terms of detection probability, false alarm probability and miss detection probability regarding previously proposed algorithms.","PeriodicalId":6480,"journal":{"name":"2016 IEEE Ecuador Technical Chapters Meeting (ETCM)","volume":"29 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78636310","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 : 2016-10-01DOI: 10.1109/ETCM.2016.7750858
Lohana Lema Moreta, Antonio Cevallos Gamboa, Maria Gabriela Palacios
Gamification is a technique that, through the use of game elements, encourages users to learn and create opportunities to explore issues that necessarily must be approached from a theoretical perspective. For example, theories related to risk management. This work implements a proposal of a Gamified Web Application to strengthen the teaching of risk management. The building of the application focuses particularly on the stages of identification, analysis and mitigation of risks in technological projects. The findings of this study shows, through the use of decision tree, why Gamification is a suitable framework for the issues raised in comparison with other game based learning techniques. In addition to the theoretical contribution, the study provides an implementation of a web application, built according to Gamification Framework 6D. The application can be used to teach risk management and for future experimentation use to prove the effectiveness of Gamification in contrast to a traditional teaching method.
{"title":"Implementing a Gamified application for a Risk Management course","authors":"Lohana Lema Moreta, Antonio Cevallos Gamboa, Maria Gabriela Palacios","doi":"10.1109/ETCM.2016.7750858","DOIUrl":"https://doi.org/10.1109/ETCM.2016.7750858","url":null,"abstract":"Gamification is a technique that, through the use of game elements, encourages users to learn and create opportunities to explore issues that necessarily must be approached from a theoretical perspective. For example, theories related to risk management. This work implements a proposal of a Gamified Web Application to strengthen the teaching of risk management. The building of the application focuses particularly on the stages of identification, analysis and mitigation of risks in technological projects. The findings of this study shows, through the use of decision tree, why Gamification is a suitable framework for the issues raised in comparison with other game based learning techniques. In addition to the theoretical contribution, the study provides an implementation of a web application, built according to Gamification Framework 6D. The application can be used to teach risk management and for future experimentation use to prove the effectiveness of Gamification in contrast to a traditional teaching method.","PeriodicalId":6480,"journal":{"name":"2016 IEEE Ecuador Technical Chapters Meeting (ETCM)","volume":"9 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81856073","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 : 2016-10-01DOI: 10.1109/ETCM.2016.7750855
Roberto Alejandro Larrea-Luzuriaga, A. Gutiérrez, P. Sanchis
Diffraction elements are periodic structures that whose performance is based on the light diffraction principle. One application of this structure the are grating couplers which consist in coupling light on or off plane between two propagation means, in our case between a subwavelength waveguide and a single mode fiber optic. Optimized gratings are required to ensure a maximum coupling efficiency. Gratings on silicon on insulator (SOI) platform can be optimized in a few steps analyzing its behavior and linking some structure parameters. But advanced computational calculations and algorithms are used to optimize its design. Period and fill-factor are essential parameters in the optimization. In this paper, several analytical expressions based on the fundamental grating equation are proposed to accurately obtain the optimal period and fill-factor for a polarization transversal-electric and starting with the optimal values for this polarization get analytically the optimal parameters for polarization transversal-magnetic through a relation between both polarizations, avoiding simulation time.
{"title":"Analytical strategy to achieve optimized grating couplers with high precision for both TE and TM polarizations on SOI platform","authors":"Roberto Alejandro Larrea-Luzuriaga, A. Gutiérrez, P. Sanchis","doi":"10.1109/ETCM.2016.7750855","DOIUrl":"https://doi.org/10.1109/ETCM.2016.7750855","url":null,"abstract":"Diffraction elements are periodic structures that whose performance is based on the light diffraction principle. One application of this structure the are grating couplers which consist in coupling light on or off plane between two propagation means, in our case between a subwavelength waveguide and a single mode fiber optic. Optimized gratings are required to ensure a maximum coupling efficiency. Gratings on silicon on insulator (SOI) platform can be optimized in a few steps analyzing its behavior and linking some structure parameters. But advanced computational calculations and algorithms are used to optimize its design. Period and fill-factor are essential parameters in the optimization. In this paper, several analytical expressions based on the fundamental grating equation are proposed to accurately obtain the optimal period and fill-factor for a polarization transversal-electric and starting with the optimal values for this polarization get analytically the optimal parameters for polarization transversal-magnetic through a relation between both polarizations, avoiding simulation time.","PeriodicalId":6480,"journal":{"name":"2016 IEEE Ecuador Technical Chapters Meeting (ETCM)","volume":"8 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85072491","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 : 2016-10-01DOI: 10.1109/ETCM.2016.7750847
Juan Martinez, José Mejía, B. Mederos
For retrieving information in a wireless sensor network (WSN) from any node, each node must know the status of the entire network, leading to a high cost of energy in communication and information storage. In this paper, we evaluated a recovery method to request information from any node of a WSN with the use of compress sensing to compact the data to be stored and transmitted, and the use of a gossip pairwise algorithm to determine the network status. To recover the compressed information, two optimization algorithms are proposed and tested for convergence errors.
{"title":"Compress sensing for wireless sensor networks using gossip pairwise algorithm and optimization algorithms","authors":"Juan Martinez, José Mejía, B. Mederos","doi":"10.1109/ETCM.2016.7750847","DOIUrl":"https://doi.org/10.1109/ETCM.2016.7750847","url":null,"abstract":"For retrieving information in a wireless sensor network (WSN) from any node, each node must know the status of the entire network, leading to a high cost of energy in communication and information storage. In this paper, we evaluated a recovery method to request information from any node of a WSN with the use of compress sensing to compact the data to be stored and transmitted, and the use of a gossip pairwise algorithm to determine the network status. To recover the compressed information, two optimization algorithms are proposed and tested for convergence errors.","PeriodicalId":6480,"journal":{"name":"2016 IEEE Ecuador Technical Chapters Meeting (ETCM)","volume":"90 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83091341","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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