Pub Date : 2018-10-01DOI: 10.1109/ETCM.2018.8580339
A. O. Maria, Marco Yacelga-Pinto, G. Arévalo
The next generation passive optical network, stage 2 (NG-PON2) constitute milestone in the optical access networks evolution. Currently the requirements of its physical layer, such as a 40 Gb/s of upstream/downstream capacity, using a hybrid WDM-TDM technology with reliability and efficiency in bandwidth and power consumption. The NG’PON2 standard also demand an Optical Distribution Network (ODN) backward compatibility with previous ITU-T PON standards. In this paper we provide a comprehensive way to understand NG-PON2 improvements and present an experimental demonstration of a NG-PON-2 compliant network deployment, employing BER and Optical Path Penalty (OPP) measurements, in order to verify the performance of different inter-channel spacing variations for determining its impact in the data transmission. Results show that there is a 3 dB penalty when using 0.2 nm of inter-channel spacing with respect to a 0.4 nm of inter-channel spacing.
{"title":"Experimental evaluation of a NG-PON2 network","authors":"A. O. Maria, Marco Yacelga-Pinto, G. Arévalo","doi":"10.1109/ETCM.2018.8580339","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580339","url":null,"abstract":"The next generation passive optical network, stage 2 (NG-PON2) constitute milestone in the optical access networks evolution. Currently the requirements of its physical layer, such as a 40 Gb/s of upstream/downstream capacity, using a hybrid WDM-TDM technology with reliability and efficiency in bandwidth and power consumption. The NG’PON2 standard also demand an Optical Distribution Network (ODN) backward compatibility with previous ITU-T PON standards. In this paper we provide a comprehensive way to understand NG-PON2 improvements and present an experimental demonstration of a NG-PON-2 compliant network deployment, employing BER and Optical Path Penalty (OPP) measurements, in order to verify the performance of different inter-channel spacing variations for determining its impact in the data transmission. Results show that there is a 3 dB penalty when using 0.2 nm of inter-channel spacing with respect to a 0.4 nm of inter-channel spacing.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"43 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126765274","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580274
Tuesman D. Castillo, J. R. Castro
This paper presents the design and simulation of an active power filter (APF) supported by a PV plant. The system can operate in three different modes: APF, APF+PV and APF+PV+Px, which means the system functions as APF extracting the necessary energy to compensate harmonics and unbalances entirely from the grid, the second mode means that this energy is extracted from the PV, and the last mode allows to use all the power available in the PV system to feed the load, support the APF and to export PV energy to the grid. The system includes a PV generator, a DC/DC converter controlled with MPPT, and a voltage source converter (VSC) acting as APF. P-Q Theory algorithm is used to control the APF. The system is simulated on MATLAB/Simscape Power Systems toolbox on three scenarios.
本文介绍了光伏电站有源电力滤波器的设计与仿真。系统可以在三种不同的模式下运行:APF, APF+PV和APF+PV+Px，这意味着系统作为APF从电网中提取必要的能量来补偿谐波和不平衡，第二种模式意味着这些能量是从光伏中提取的，最后一种模式允许使用光伏系统中所有可用的电力来馈送负载，支持APF并将光伏能源输出到电网。该系统包括一个PV发电机，一个由MPPT控制的DC/DC转换器，以及一个作为APF的电压源转换器(VSC)。采用P-Q理论算法控制有源滤波器。在MATLAB/Simscape Power Systems工具箱中对系统进行了三种场景的仿真。
{"title":"Renewable Energy Source P-V conected to the grid through Shunt Active Power Filter based in P-Q theory","authors":"Tuesman D. Castillo, J. R. Castro","doi":"10.1109/ETCM.2018.8580274","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580274","url":null,"abstract":"This paper presents the design and simulation of an active power filter (APF) supported by a PV plant. The system can operate in three different modes: APF, APF+PV and APF+PV+Px, which means the system functions as APF extracting the necessary energy to compensate harmonics and unbalances entirely from the grid, the second mode means that this energy is extracted from the PV, and the last mode allows to use all the power available in the PV system to feed the load, support the APF and to export PV energy to the grid. The system includes a PV generator, a DC/DC converter controlled with MPPT, and a voltage source converter (VSC) acting as APF. P-Q Theory algorithm is used to control the APF. The system is simulated on MATLAB/Simscape Power Systems toolbox on three scenarios.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114404003","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580316
Galo Enrique Valverde Landívar, Joffre Luis León Veas
Electricity is an essential component in modern life and the economy, it has promoted the development of so-called industrial era over an extended period of time, and actual information era; however organisms such as WEC1, WWAP2 and ONU SDG3 consider the automation of the current power system model as an unsustainable energy system model for the 21st century because renewable energy sources alone will not be sufficient to meet the large increase of the energy demand and fulfill it in 2030. We are in the knowledge era, and it has said that “artificial intelligence is the new electricity” [1]. This sets enormous challenges for implementation of a new model for the infrastructure, the acquisition and use of the smart electricity grid (Smart Grid) in Ecuador where power is required to be affordable, reliable and sustainable. It describes the current situation, and presents the status of implementation of this concept, to then be able to structure the foundations of a model based on artificial intelligence, with participation of each one of its actors, presenting the opportunity to carry the electricity power sector and the Ecuadorian society, a new era of development, sustainability, energy independence, efficiency and high availability.
{"title":"How intelligent is the SmartGrid in Ecuador?","authors":"Galo Enrique Valverde Landívar, Joffre Luis León Veas","doi":"10.1109/ETCM.2018.8580316","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580316","url":null,"abstract":"Electricity is an essential component in modern life and the economy, it has promoted the development of so-called industrial era over an extended period of time, and actual information era; however organisms such as WEC1, WWAP2 and ONU SDG3 consider the automation of the current power system model as an unsustainable energy system model for the 21st century because renewable energy sources alone will not be sufficient to meet the large increase of the energy demand and fulfill it in 2030. We are in the knowledge era, and it has said that “artificial intelligence is the new electricity” [1]. This sets enormous challenges for implementation of a new model for the infrastructure, the acquisition and use of the smart electricity grid (Smart Grid) in Ecuador where power is required to be affordable, reliable and sustainable. It describes the current situation, and presents the status of implementation of this concept, to then be able to structure the foundations of a model based on artificial intelligence, with participation of each one of its actors, presenting the opportunity to carry the electricity power sector and the Ecuadorian society, a new era of development, sustainability, energy independence, efficiency and high availability.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125229042","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580271
M. Campoverde, Raisa M. Guayasamín, O. Camacho, P. Leica
The objective of this work is to make a comparison of three predictive control schemes: a Robust Smith Predictor and two kinds of model-based predictive control (MPC) which were applied to a continuous stirred tank reactor (CSTR). This process has an elevated and variable dead time due to the location of the temperature transmitter and the flow variation on which the delay depends. The performance of the controllers is tested under tracking and regulation conditions: change in the set point, persistent disturbance applied at a determined time. In the same way, the proposed control strategies are compared and analized each other using the robustness plot.
{"title":"Nonlinear Chemical Processes With Variable Dead Time: Comparative Robustness and Performance Analysis for Model Based Predictive Schemes","authors":"M. Campoverde, Raisa M. Guayasamín, O. Camacho, P. Leica","doi":"10.1109/ETCM.2018.8580271","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580271","url":null,"abstract":"The objective of this work is to make a comparison of three predictive control schemes: a Robust Smith Predictor and two kinds of model-based predictive control (MPC) which were applied to a continuous stirred tank reactor (CSTR). This process has an elevated and variable dead time due to the location of the temperature transmitter and the flow variation on which the delay depends. The performance of the controllers is tested under tracking and regulation conditions: change in the set point, persistent disturbance applied at a determined time. In the same way, the proposed control strategies are compared and analized each other using the robustness plot.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123707635","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580340
Dayan Calupiña, Andrea García, O. Camacho, A. Rosales, P. Rivadeneira
The development of the artificial pancreas in the Type 1 Diabetes treatment has gained strength in recent years. However, the main challenge facing this development is the variations of the parameters in the plant, which are expected to change even up to an 80% of their nominal values. This parametric variation presents greater difficulty when applying controllers. This paper presents the design and evaluation of two robust controllers, the Nonlinear PID controller and the Dynamic Sliding Mode Controller. The simulation scenarios consider the intake of 3 meals per day and different parametric variation. The performance analysis shows that NPID maintains blood glucose levels in its set-point zone better than the DSMC. Finally, the controllers are tested in the UVA/Padova metabolic simulator obtaining the 100% of the patients in the safe range.
{"title":"Non-linear PID and Dynamic SMC for the Artificial Pancreas control in the treatment of Type 1 Diabetes","authors":"Dayan Calupiña, Andrea García, O. Camacho, A. Rosales, P. Rivadeneira","doi":"10.1109/ETCM.2018.8580340","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580340","url":null,"abstract":"The development of the artificial pancreas in the Type 1 Diabetes treatment has gained strength in recent years. However, the main challenge facing this development is the variations of the parameters in the plant, which are expected to change even up to an 80% of their nominal values. This parametric variation presents greater difficulty when applying controllers. This paper presents the design and evaluation of two robust controllers, the Nonlinear PID controller and the Dynamic Sliding Mode Controller. The simulation scenarios consider the intake of 3 meals per day and different parametric variation. The performance analysis shows that NPID maintains blood glucose levels in its set-point zone better than the DSMC. Finally, the controllers are tested in the UVA/Padova metabolic simulator obtaining the 100% of the patients in the safe range.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"34 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124465329","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580297
Felipe Grijalva, J. Larco, Paúl Mejía
In perceptual-based techniques for individualization of head-related transfer functions (HRTFs), subjects tune some parameters for several target directions until they achieve an acceptable spatial accuracy. However, this procedure might be time-consuming depending on the ability of the listener, and the number of parameters and target directions. This makes desirable a way to estimate empirically the localization accuracy before tuning sessions. To tackle this problem, we propose a virtual listener based on Support Vector Regression (SVR) to substitute the human listener in such sessions. We show that, using a small training set obtained by sampling uniformly a subject’s HRTFs across directions, our virtual listener achieves human-level localization accuracy. Moreover, simulations show that the virtual listener performance is in accordance with human perception for sound sources with different frequency content as well as sound sources filtered through non-individualized HRTFs. Finally, our approach based on SVR attains performance similar to computationally intensive methods based on Gaussian Process Regression.
{"title":"A Virtual Listener For HRTF-Based Sound Source Localization Using Support Vector Regression","authors":"Felipe Grijalva, J. Larco, Paúl Mejía","doi":"10.1109/ETCM.2018.8580297","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580297","url":null,"abstract":"In perceptual-based techniques for individualization of head-related transfer functions (HRTFs), subjects tune some parameters for several target directions until they achieve an acceptable spatial accuracy. However, this procedure might be time-consuming depending on the ability of the listener, and the number of parameters and target directions. This makes desirable a way to estimate empirically the localization accuracy before tuning sessions. To tackle this problem, we propose a virtual listener based on Support Vector Regression (SVR) to substitute the human listener in such sessions. We show that, using a small training set obtained by sampling uniformly a subject’s HRTFs across directions, our virtual listener achieves human-level localization accuracy. Moreover, simulations show that the virtual listener performance is in accordance with human perception for sound sources with different frequency content as well as sound sources filtered through non-individualized HRTFs. Finally, our approach based on SVR attains performance similar to computationally intensive methods based on Gaussian Process Regression.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116643943","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580294
Oscar Gonzales, A. Rosales
Dual Active Bridge (DAB) converters are efficient energy conversion systems that require robust control algorithms. The wide implementation of DAB converters in electrical applications such as power generation, power distribution and energy management shows the great potential in electrical energy conversion. The DAB converter topology consists in the interface of two single-phase power converter bridges through a high frequency transformer, which allows DAB converter to reach different power rates. DAB converters have several advantages respect to conventional electromechanical transformers, such as: electrical energy efficiency, low size and weight. This paper proposes a Sliding Mode Controller (SMC) with integral linear quadratic surface to regulate power distribution by changing the phase shift between the primary and secondary commutations of the semiconductors in each bridge. In order to test the SMC performance on robustness, load variation and reference tracking tests are applied. The SMC operation is evaluated through the criterion of the Integral of the Absolute value of the Error (IAE) and conclusions are developed from analysis of results.
{"title":"Sliding Mode Controller Based on a Linear Quadratic Integral Regulator Surface for Power Control on a Dual Active Bridge Converter","authors":"Oscar Gonzales, A. Rosales","doi":"10.1109/ETCM.2018.8580294","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580294","url":null,"abstract":"Dual Active Bridge (DAB) converters are efficient energy conversion systems that require robust control algorithms. The wide implementation of DAB converters in electrical applications such as power generation, power distribution and energy management shows the great potential in electrical energy conversion. The DAB converter topology consists in the interface of two single-phase power converter bridges through a high frequency transformer, which allows DAB converter to reach different power rates. DAB converters have several advantages respect to conventional electromechanical transformers, such as: electrical energy efficiency, low size and weight. This paper proposes a Sliding Mode Controller (SMC) with integral linear quadratic surface to regulate power distribution by changing the phase shift between the primary and secondary commutations of the semiconductors in each bridge. In order to test the SMC performance on robustness, load variation and reference tracking tests are applied. The SMC operation is evaluated through the criterion of the Integral of the Absolute value of the Error (IAE) and conclusions are developed from analysis of results.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130230141","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580267
Fabrizio Eloy Ramírez, Marco Segura-Morales, Marco E. Benalcázar
The present paper presents a Software Architecture proposal designed to provide to a “gesture recognition system” the capacity to expose its functionalities and capabilities to be consumed by any other software application with diverse purposes. In this context, the proposed architecture will provide integration and interoperability capabilities to the human-arm gesture recognition system, giving it the ability to interact with other applications. The whole solution includes different elements such as the MyoArmband device (wearable), a human-arm gesture recognition system, a communications interface, and any other practical applications which consume the functionalities of the recognition system. To demonstrate the feasibility and usefulness of the proposed architecture, two software applications have been designed and implemented, based on this architecture, which are a mouse emulator and a Tetris game.
{"title":"Design of a Software Architecture and Practical Applications to Exploit the Capabilities of a Human Arm Gesture Recognition System","authors":"Fabrizio Eloy Ramírez, Marco Segura-Morales, Marco E. Benalcázar","doi":"10.1109/ETCM.2018.8580267","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580267","url":null,"abstract":"The present paper presents a Software Architecture proposal designed to provide to a “gesture recognition system” the capacity to expose its functionalities and capabilities to be consumed by any other software application with diverse purposes. In this context, the proposed architecture will provide integration and interoperability capabilities to the human-arm gesture recognition system, giving it the ability to interact with other applications. The whole solution includes different elements such as the MyoArmband device (wearable), a human-arm gesture recognition system, a communications interface, and any other practical applications which consume the functionalities of the recognition system. To demonstrate the feasibility and usefulness of the proposed architecture, two software applications have been designed and implemented, based on this architecture, which are a mouse emulator and a Tetris game.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129179998","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580299
Freddy Panchi, Karla Hernández, D. Chávez
This paper presents the design and implementation of a teleoperation system for a real and a simulated car-like mobile robot. It proposes the use of communication protocol MQTT, which uses publisher-subscriber architecture. The teleoperation system has a local station and a remote station. The human operator uses a joystick to command the mobile robot located in the remote station. A human-machine interface and visual feedback are the aids for the human operator to manipulate the car-like. In this case the internet was used as the medium of communication. Finally, the efficiency of the system was analyzed from different remote locations.
{"title":"MQTT Protocol of IoT for Real Time Bilateral Teleoperation Applied to Car-Like Mobile Robot","authors":"Freddy Panchi, Karla Hernández, D. Chávez","doi":"10.1109/ETCM.2018.8580299","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580299","url":null,"abstract":"This paper presents the design and implementation of a teleoperation system for a real and a simulated car-like mobile robot. It proposes the use of communication protocol MQTT, which uses publisher-subscriber architecture. The teleoperation system has a local station and a remote station. The human operator uses a joystick to command the mobile robot located in the remote station. A human-machine interface and visual feedback are the aids for the human operator to manipulate the car-like. In this case the internet was used as the medium of communication. Finally, the efficiency of the system was analyzed from different remote locations.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122825974","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580304
Andrés V. Guatapi G., Carmen A. Carabali C., Alvarez R. Robin
Here we present the design, implementation and testing of a mobile system for ambulatory monitoring of cardiac activity, it uses capacitive electrodes that do not need of direct contact with the skin. The system uses the material between the skin and the electrodes as a dielectric for the capacitor formed between them. The device pretends to monitor heart activity in people with high skin sensitivity or with injuries, it could also be used as part of the attire of professionals such as pilots. Our hypotheses were the following: 1) It is possible to develop a system that allows monitoring heart activity through a mobile device, without the need conductor gel or even in direct contact to the skin. 2) The implemented electrodes will be able to take data with and without direct contact with the skin. 3) The system will be able to get electrocardiographic signal through at least three different type of textures. All the hypotheses were satisfied. The performance of the system was evaluated by acquiring measurements, using different textures as dielectric and then performing a paired t-test comparing them with a signal of wet Ag/Cl electrodes that are considered the gold standard now, the results suggested that there is not significative difference between the signals taken with the implemented electrodes and the ones taken with the Ag/Cl electrodes. Connectivity and performance of the App were also tested by using it and obtaining satisfactory results.
{"title":"Development of a low cost mobile system for monitoring cardiac activity based on noncontact electrodes","authors":"Andrés V. Guatapi G., Carmen A. Carabali C., Alvarez R. Robin","doi":"10.1109/ETCM.2018.8580304","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580304","url":null,"abstract":"Here we present the design, implementation and testing of a mobile system for ambulatory monitoring of cardiac activity, it uses capacitive electrodes that do not need of direct contact with the skin. The system uses the material between the skin and the electrodes as a dielectric for the capacitor formed between them. The device pretends to monitor heart activity in people with high skin sensitivity or with injuries, it could also be used as part of the attire of professionals such as pilots. Our hypotheses were the following: 1) It is possible to develop a system that allows monitoring heart activity through a mobile device, without the need conductor gel or even in direct contact to the skin. 2) The implemented electrodes will be able to take data with and without direct contact with the skin. 3) The system will be able to get electrocardiographic signal through at least three different type of textures. All the hypotheses were satisfied. The performance of the system was evaluated by acquiring measurements, using different textures as dielectric and then performing a paired t-test comparing them with a signal of wet Ag/Cl electrodes that are considered the gold standard now, the results suggested that there is not significative difference between the signals taken with the implemented electrodes and the ones taken with the Ag/Cl electrodes. Connectivity and performance of the App were also tested by using it and obtaining satisfactory results.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127558885","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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