Julian M. Angel F., J. A. G. Higuera, A. Bernal, Carlos E. Villarraga Pinzon
The development of microelectronic industry has been related with the development of methodologies for detection of faults, either in production lines or in the field of action of devices. This has not happened in the industry of micro electromechanical systems (MEMS), which have made great progress in developing device but the fault detection techniques have been inherited the microelectronic. This presents a major problem since the nature of failures in MEMS is radically different from microelectronic failure. Given the complexity of fault modeling MEMS multi physics propose the use of neural networks as classifier system failures that could be implemented in systems self-test or verification in production line for these devices. Defective Comb Drive is detected by neural networks using as an input the resonance frequency and the gain.
{"title":"A Comparison of Neural Networks to Detect Failures in Micro-electro-mechanical Systems","authors":"Julian M. Angel F., J. A. G. Higuera, A. Bernal, Carlos E. Villarraga Pinzon","doi":"10.1109/CERMA.2010.32","DOIUrl":"https://doi.org/10.1109/CERMA.2010.32","url":null,"abstract":"The development of microelectronic industry has been related with the development of methodologies for detection of faults, either in production lines or in the field of action of devices. This has not happened in the industry of micro electromechanical systems (MEMS), which have made great progress in developing device but the fault detection techniques have been inherited the microelectronic. This presents a major problem since the nature of failures in MEMS is radically different from microelectronic failure. Given the complexity of fault modeling MEMS multi physics propose the use of neural networks as classifier system failures that could be implemented in systems self-test or verification in production line for these devices. Defective Comb Drive is detected by neural networks using as an input the resonance frequency and the gain.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121601148","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}
R. Morales-Caporal, Marco A. Morales-Caporal, R. Ordoñez-Flores
Today, it is common the use of a static power converters to adapt the available energy from a clean source to feed an electrical load. Wind energy conversion systems have become one of the principal areas of research on renewable energies. This research has permitted the development of different topologies and control strategies of power converters to be used on wind energy extraction. This paper presents the design and simulation of a predictive current control algorithm of an AC/DC/AC power converter in order to obtain constant voltage and frequency at variable wind speed, with the advantages of easy and time equidistant implementation on a DSP-based system. Moreover, the proposed system works by using a wind turbine directly connected to a permanent magnet synchronous generator In order to reduce mechanical loss and cost due to a gearbox. Several simulated results at different operating conditions show the effectiveness of the proposed control scheme.
{"title":"Predictive Current Control of a SVM-PWM Power Converter Used in Wind Turbine Applications","authors":"R. Morales-Caporal, Marco A. Morales-Caporal, R. Ordoñez-Flores","doi":"10.1109/CERMA.2010.76","DOIUrl":"https://doi.org/10.1109/CERMA.2010.76","url":null,"abstract":"Today, it is common the use of a static power converters to adapt the available energy from a clean source to feed an electrical load. Wind energy conversion systems have become one of the principal areas of research on renewable energies. This research has permitted the development of different topologies and control strategies of power converters to be used on wind energy extraction. This paper presents the design and simulation of a predictive current control algorithm of an AC/DC/AC power converter in order to obtain constant voltage and frequency at variable wind speed, with the advantages of easy and time equidistant implementation on a DSP-based system. Moreover, the proposed system works by using a wind turbine directly connected to a permanent magnet synchronous generator In order to reduce mechanical loss and cost due to a gearbox. Several simulated results at different operating conditions show the effectiveness of the proposed control scheme.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125447328","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}
This paper presents the applications of the Wavelet Transform (WT) for analyzing fast transient signals originated from fault events in power grids with presence of power electronics-based controllers and its protective devices. The study cases included emphasizes the wavelets ability to discriminate signals originated by the fault events from those injected by power controllers, like the TCSC and its associated protection, the MOV, and determine location and electrical distance of the fault to a reference point. The simulation and analysis are carried out cooperatively mean between PSCAD and MATLAB.
{"title":"Fault Detection in Electrical Grid on Power Electronic Controllers Environment Based on Wavelet Transform","authors":"E. Reyes-Archundia, E. Moreno-Goytia","doi":"10.1109/CERMA.2010.71","DOIUrl":"https://doi.org/10.1109/CERMA.2010.71","url":null,"abstract":"This paper presents the applications of the Wavelet Transform (WT) for analyzing fast transient signals originated from fault events in power grids with presence of power electronics-based controllers and its protective devices. The study cases included emphasizes the wavelets ability to discriminate signals originated by the fault events from those injected by power controllers, like the TCSC and its associated protection, the MOV, and determine location and electrical distance of the fault to a reference point. The simulation and analysis are carried out cooperatively mean between PSCAD and MATLAB.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125707295","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}
Liliana Ibeth Barbosa Santillán, J. J. Escobar, Claudia Rosa Maria Munoz Cano
The number of users of mobile devices has increased enormously over the past five years. Along with this, the public concern about how to make sure personal information remains private and safe has also grown, and it has become a high priority standard for mobile device producers to fulfill. Programming languages, by themselves, offer a limited safely, unfortunately. A common example is the use of credit cards, where the credit limit can never be exceed since the programming language cannot guarantee. The authors identify the need to structure the knowledge involved during the process of mobile devices safety development as a crucial step to guarantee trust between users and producers. The proposal project consists on creating a representative model between users and mobile device producers called Onto Device Trust. This model is based on ontologies where knowledge and information are structured on classes and concepts. The ontologies involved in this representative model are: Languages, Tools, Safeties, Industries, Smart Cards, Mobile Devices, Applications, Certificates, Evaluations, Clients, Analyzers and Testers. The evaluation of the ontology content in the Onto Device Trust model is carried out through a technical judgment of the ontology and its associated conceptualization.
{"title":"OntoDeviceTrust: A Representation Model of Trust between the Users of Mobile Devices and the Producers of Applications Based on Ontologies","authors":"Liliana Ibeth Barbosa Santillán, J. J. Escobar, Claudia Rosa Maria Munoz Cano","doi":"10.1109/CERMA.2010.10","DOIUrl":"https://doi.org/10.1109/CERMA.2010.10","url":null,"abstract":"The number of users of mobile devices has increased enormously over the past five years. Along with this, the public concern about how to make sure personal information remains private and safe has also grown, and it has become a high priority standard for mobile device producers to fulfill. Programming languages, by themselves, offer a limited safely, unfortunately. A common example is the use of credit cards, where the credit limit can never be exceed since the programming language cannot guarantee. The authors identify the need to structure the knowledge involved during the process of mobile devices safety development as a crucial step to guarantee trust between users and producers. The proposal project consists on creating a representative model between users and mobile device producers called Onto Device Trust. This model is based on ontologies where knowledge and information are structured on classes and concepts. The ontologies involved in this representative model are: Languages, Tools, Safeties, Industries, Smart Cards, Mobile Devices, Applications, Certificates, Evaluations, Clients, Analyzers and Testers. The evaluation of the ontology content in the Onto Device Trust model is carried out through a technical judgment of the ontology and its associated conceptualization.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"26 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113976546","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}
In this paper the servo problem in a 3-D robot manipulator based only on the visual measurements by following the dynamic visual servoing approach with a fixed camera configuration is considered. To model the whole visual servoing system, we consider the robot in an image space, reconstructed from the perspective projection of the robot space in the image plane. The manipulator dynamics is lifted up to the image space and modeled with the lagrangian formalism by formulating the kinematic and potential energy in the image space. The resulting motion equation has the same structure as that obtained in the joint space using the lagrangian modeling [1], and therefore inheriting the passivity property. Control schemes based on the passivity of the motion equation are then designed for visual servoing. Simulation and experiment results are included.
{"title":"Dynamic Visual Servoing of Robot Manipulators Based on Passivity","authors":"A. L. Rodríguez, Yu Tang","doi":"10.1109/CERMA.2010.110","DOIUrl":"https://doi.org/10.1109/CERMA.2010.110","url":null,"abstract":"In this paper the servo problem in a 3-D robot manipulator based only on the visual measurements by following the dynamic visual servoing approach with a fixed camera configuration is considered. To model the whole visual servoing system, we consider the robot in an image space, reconstructed from the perspective projection of the robot space in the image plane. The manipulator dynamics is lifted up to the image space and modeled with the lagrangian formalism by formulating the kinematic and potential energy in the image space. The resulting motion equation has the same structure as that obtained in the joint space using the lagrangian modeling [1], and therefore inheriting the passivity property. Control schemes based on the passivity of the motion equation are then designed for visual servoing. Simulation and experiment results are included.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114198585","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}
F. Sanchez, Raul Miranda-Tello, C. Real-Ramírez, L. Hoyos, Miguel Ramírez, J. González-Trejo
Fluctuations in the level of a physical model of a continuous casting mold were studied to determine the structure of the oscillations in the molten steel level. A water model of one third of scale of an actual continuous casting machine with a perfect control configuration was used in experiments. The liquid level in the mold is measured by recording at high-speed the level fluctuations and then detecting the edges on each of the recorded images. In this work, the Sobel operator was employed. The results show that level fluctuations inside the mold have a complex structure that is repeated in large time periods.
{"title":"Level Estimation in a Water Model of Continuous Casting","authors":"F. Sanchez, Raul Miranda-Tello, C. Real-Ramírez, L. Hoyos, Miguel Ramírez, J. González-Trejo","doi":"10.1109/CERMA.2010.109","DOIUrl":"https://doi.org/10.1109/CERMA.2010.109","url":null,"abstract":"Fluctuations in the level of a physical model of a continuous casting mold were studied to determine the structure of the oscillations in the molten steel level. A water model of one third of scale of an actual continuous casting machine with a perfect control configuration was used in experiments. The liquid level in the mold is measured by recording at high-speed the level fluctuations and then detecting the edges on each of the recorded images. In this work, the Sobel operator was employed. The results show that level fluctuations inside the mold have a complex structure that is repeated in large time periods.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128655812","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}
E. D. Lorias, M. Minor, S. Ortiz, P. Olivares, J. Gnecchi
Minimally invasive surgery demands the development and maintenance of the specialized surgeon’s psychomotor skills. These skills can be measured objectively through hybrid and virtual training systems. Of which, the most advanced, integrates force feedback systems and augmented reality graphics. However, these systems are inaccessible because of their high cost, limiting the expected academic impact. In this article, we propose a computerized system for an objective evaluation, which can be integrated into any physical trainer at a low cost.
{"title":"Computer System for the Evaluation of Laparoscopic Skills","authors":"E. D. Lorias, M. Minor, S. Ortiz, P. Olivares, J. Gnecchi","doi":"10.1109/CERMA.2010.11","DOIUrl":"https://doi.org/10.1109/CERMA.2010.11","url":null,"abstract":"Minimally invasive surgery demands the development and maintenance of the specialized surgeon’s psychomotor skills. These skills can be measured objectively through hybrid and virtual training systems. Of which, the most advanced, integrates force feedback systems and augmented reality graphics. However, these systems are inaccessible because of their high cost, limiting the expected academic impact. In this article, we propose a computerized system for an objective evaluation, which can be integrated into any physical trainer at a low cost.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128920434","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}
Jose L Tapia, Joel O. Pacheco Sotelo, E. Díaz Rodríguez, Yulia Nikolaevna Ledeneva, Rene Arnulfo Garcia Hernandez
An electrical cathode model (ECM) of a high pressure sodium lamp (HPS) based on physical laws has been developed. The proposed ECM calculates the instantaneous voltage drop in a cathode sheath and the temperature distribution inside the cathode using as input parameter the cathode geometry and the positive column current. The model is based on the electrode heat transport equation, solved using the finite elements method. It is found that the ECM predicts in a satisfactory way the cathode voltage drop over a wide range of work conditions. The obtained results were compared with those reported in the current literature. It can be concluded that the ECM is a useful tool in understanding the interaction between the positive column and the cathode in order to improve, for instance, HPS lamp ballast designs.
{"title":"An Electrical Cathode Model of a High Pressure Sodium Lamp","authors":"Jose L Tapia, Joel O. Pacheco Sotelo, E. Díaz Rodríguez, Yulia Nikolaevna Ledeneva, Rene Arnulfo Garcia Hernandez","doi":"10.1109/CERMA.2010.73","DOIUrl":"https://doi.org/10.1109/CERMA.2010.73","url":null,"abstract":"An electrical cathode model (ECM) of a high pressure sodium lamp (HPS) based on physical laws has been developed. The proposed ECM calculates the instantaneous voltage drop in a cathode sheath and the temperature distribution inside the cathode using as input parameter the cathode geometry and the positive column current. The model is based on the electrode heat transport equation, solved using the finite elements method. It is found that the ECM predicts in a satisfactory way the cathode voltage drop over a wide range of work conditions. The obtained results were compared with those reported in the current literature. It can be concluded that the ECM is a useful tool in understanding the interaction between the positive column and the cathode in order to improve, for instance, HPS lamp ballast designs.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129284759","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}
G. Laguna-Sánchez, R. Barrón-Fernández, A. Prieto-Guerrero
Wavelet decomposition's ability to deal with heterogeneous and intermittent behavior and its effectively noisy removing property, has become the wavelet-based estimation in a very interesting non parametric technique. This paper proposes a wavelet-based methodology to improve channel estimation, via wavelet-based denoising approach, for a power-line communication network impaired with significant impulsive noise.
{"title":"Wavelet-Based Improvement for Channel Estimation in a Power-Line Communication Environment Impaired by Impulsive Noise","authors":"G. Laguna-Sánchez, R. Barrón-Fernández, A. Prieto-Guerrero","doi":"10.1109/CERMA.2010.64","DOIUrl":"https://doi.org/10.1109/CERMA.2010.64","url":null,"abstract":"Wavelet decomposition's ability to deal with heterogeneous and intermittent behavior and its effectively noisy removing property, has become the wavelet-based estimation in a very interesting non parametric technique. This paper proposes a wavelet-based methodology to improve channel estimation, via wavelet-based denoising approach, for a power-line communication network impaired with significant impulsive noise.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129134834","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}
Programming Wireless Sensor Networks (WSN) involves learning very different programming paradigms from those commonly used in the development of computer systems. Due to the lack of advantages obtained from the last generation high level programming languages, the growth of WSNs is significantly impeded. Programming WSN nodes requires knowledge of specific hardware which depends on the WSN architecture. A method to provide the benefits of high level languages is to use a hardware abstraction layer. MiniMV is a virtual machine designed to be used in embedded systems and it is capable of executing Java class files (containing a subset java bytecode instructions) created by a Java standard compiler. This work focuses on the implementation of MiniMV in the Tmote Sky platform using the C language and the TinyOS hardware functions as native methods and how MiniMV has been ported to other platform with minimal changes such as LiSANDRA developed by UABC-Tij research group.
{"title":"A Java Compatible Virtual Machine as an Embedded Middleware for Wireless Sensor Networks","authors":"Carlos Cota, Leocundo Aguilar, G. Licea","doi":"10.1109/CERMA.2010.104","DOIUrl":"https://doi.org/10.1109/CERMA.2010.104","url":null,"abstract":"Programming Wireless Sensor Networks (WSN) involves learning very different programming paradigms from those commonly used in the development of computer systems. Due to the lack of advantages obtained from the last generation high level programming languages, the growth of WSNs is significantly impeded. Programming WSN nodes requires knowledge of specific hardware which depends on the WSN architecture. A method to provide the benefits of high level languages is to use a hardware abstraction layer. MiniMV is a virtual machine designed to be used in embedded systems and it is capable of executing Java class files (containing a subset java bytecode instructions) created by a Java standard compiler. This work focuses on the implementation of MiniMV in the Tmote Sky platform using the C language and the TinyOS hardware functions as native methods and how MiniMV has been ported to other platform with minimal changes such as LiSANDRA developed by UABC-Tij research group.","PeriodicalId":119218,"journal":{"name":"2010 IEEE Electronics, Robotics and Automotive Mechanics Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124362128","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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