... IEEE International Instrumentation and Measurement Technology Conference. IEEE International Instrumentation and Measurement Technology Conference最新文献
Pub Date : 2015-05-11DOI: 10.1109/I2MTC.2015.7151489
Alexsandro José Virgínio dos Santos, A. Silva, C. Souto, S. A. Silva, Ana Maria Marques de Lima
Tracked robots have been studied for years, to high-level applications, such as autonomous navigation in areas of difficult access and maneuvering strategies that allow better performance compared to other types of vehicles. The full operation of a robotic system depends on ensuring the functioning of all its parts, which can be divided hierarchically or functionality. There is a consensus that the kinematic model can be simplified for most analyzes. Likewise, the dynamic model is greatly simplified because of its complexity and uncertainty, but not allowing use of models that approximate the actual behavior. The dynamic approach proposed in this work includes a lateral drag force, causing the tracks moves in curvilinear, considering their non-linearity and strong coupling between the tracks. The traction performed by the vehicle is from electric DC motors. Also it is presented the implementation of a procedure for detecting parameters of the interaction between the tracks and the soil, by estimating the coefficients of kinetic and dynamic friction, from the measurement of current supplied to the engines while performing a maneuver.
{"title":"Detecting soil parameters from a small tracked vehicle","authors":"Alexsandro José Virgínio dos Santos, A. Silva, C. Souto, S. A. Silva, Ana Maria Marques de Lima","doi":"10.1109/I2MTC.2015.7151489","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151489","url":null,"abstract":"Tracked robots have been studied for years, to high-level applications, such as autonomous navigation in areas of difficult access and maneuvering strategies that allow better performance compared to other types of vehicles. The full operation of a robotic system depends on ensuring the functioning of all its parts, which can be divided hierarchically or functionality. There is a consensus that the kinematic model can be simplified for most analyzes. Likewise, the dynamic model is greatly simplified because of its complexity and uncertainty, but not allowing use of models that approximate the actual behavior. The dynamic approach proposed in this work includes a lateral drag force, causing the tracks moves in curvilinear, considering their non-linearity and strong coupling between the tracks. The traction performed by the vehicle is from electric DC motors. Also it is presented the implementation of a procedure for detecting parameters of the interaction between the tracks and the soil, by estimating the coefficients of kinetic and dynamic friction, from the measurement of current supplied to the engines while performing a maneuver.","PeriodicalId":93508,"journal":{"name":"... IEEE International Instrumentation and Measurement Technology Conference. IEEE International Instrumentation and Measurement Technology Conference","volume":"16 1","pages":"1446-1451"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72716539","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 : 2015-05-11DOI: 10.1109/I2MTC.2015.7151251
B. Arruda, R. Freire, C. P. Souza
Classification of voltage disturbances in power systems is essential for modern society and can be very demanding according to the used method or the aimed accuracy. This paper presents a new intelligent approach aimed to automatically analyse power quality disturbances including sag, swell, outage, harmonics and normal waveform. The approach is based on Artificial Immune System and focuses on the application of a Clonal Selection Algorithm to extract features from disturbance waveforms and classify the disturbances in each 0.5 cycle of the fundamental frequency. Other important feature of the proposed approach is that it can be embedded since the resulted on-line classification tool achieves very low computational complexity. Comparisons and experimental results obtained from the application of the proposed method validate the approach and achieved a classification accuracy at least better than previous work.
{"title":"An automatic voltage disturbance classification system based on Clonal Selection Algorithm","authors":"B. Arruda, R. Freire, C. P. Souza","doi":"10.1109/I2MTC.2015.7151251","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151251","url":null,"abstract":"Classification of voltage disturbances in power systems is essential for modern society and can be very demanding according to the used method or the aimed accuracy. This paper presents a new intelligent approach aimed to automatically analyse power quality disturbances including sag, swell, outage, harmonics and normal waveform. The approach is based on Artificial Immune System and focuses on the application of a Clonal Selection Algorithm to extract features from disturbance waveforms and classify the disturbances in each 0.5 cycle of the fundamental frequency. Other important feature of the proposed approach is that it can be embedded since the resulted on-line classification tool achieves very low computational complexity. Comparisons and experimental results obtained from the application of the proposed method validate the approach and achieved a classification accuracy at least better than previous work.","PeriodicalId":93508,"journal":{"name":"... IEEE International Instrumentation and Measurement Technology Conference. IEEE International Instrumentation and Measurement Technology Conference","volume":"16 1","pages":"121-126"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81787673","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 : 2015-05-11DOI: 10.1109/I2MTC.2015.7151322
A. Silva, C. Souto, S. A. Silva, Alexsandro José Virgínio dos Santos, Evandro Alves Torquato Filho
In this work, a robotic hand has been developed. This hand is driven by SMA (Shape Memory Alloy) wires. Some researches has showed the high rejection rate by the amputees using prosthetic upper limbs due to several problems, such as weight, high noise and need of anthropomorphism. In this context, it is presented the development of a robotic hand which is not driven by conventional actuators, in this case, SMA actuators. The mechanical structure of the robotic hand was designed using a computer program (CAD) and subsequently manufactured in ABS (acrylonitrile butadiene styrene) polymer by a rapid prototyping machine (3D printer). The robotic hand was instrumented with a bend sensor (also known as Flexsensor) to monitor the angles formed by each phalanx. The data presented, as the obtained angles, were quite satisfactory for this application. In order to corroborate the data presented by the bend sensor, a system was developed using a camera to procedure a non-contact measurement with image processing.
{"title":"Application of artificial vision as measurement validation tests on a robotic hand driven by shape-memory alloys","authors":"A. Silva, C. Souto, S. A. Silva, Alexsandro José Virgínio dos Santos, Evandro Alves Torquato Filho","doi":"10.1109/I2MTC.2015.7151322","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151322","url":null,"abstract":"In this work, a robotic hand has been developed. This hand is driven by SMA (Shape Memory Alloy) wires. Some researches has showed the high rejection rate by the amputees using prosthetic upper limbs due to several problems, such as weight, high noise and need of anthropomorphism. In this context, it is presented the development of a robotic hand which is not driven by conventional actuators, in this case, SMA actuators. The mechanical structure of the robotic hand was designed using a computer program (CAD) and subsequently manufactured in ABS (acrylonitrile butadiene styrene) polymer by a rapid prototyping machine (3D printer). The robotic hand was instrumented with a bend sensor (also known as Flexsensor) to monitor the angles formed by each phalanx. The data presented, as the obtained angles, were quite satisfactory for this application. In order to corroborate the data presented by the bend sensor, a system was developed using a camera to procedure a non-contact measurement with image processing.","PeriodicalId":93508,"journal":{"name":"... IEEE International Instrumentation and Measurement Technology Conference. IEEE International Instrumentation and Measurement Technology Conference","volume":"44 3 1","pages":"522-526"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83402196","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 : 2015-05-11DOI: 10.1109/I2MTC.2015.7151473
Tarcisio O. de Moraes, R. Freire, D. A. Vieira, C. P. Souza
Ferromagnetic materials have magnetic properties which determine its magnetic field conductivity characteristics. Such characteristics are extremely important for the proper selection and use of these materials in measurement processes, for example. Therefore, this paper presents an equipment for the characterization of ferromagnetic materials constructed in a laboratory. The experimental results of this equipment are acquired and compared with the experimental results obtained with an industrially manufactured apparatus called hysteresisgraph, designed to provide magnetic characterization of magnetic materials. The results of the comparison demonstrate that the equipment presented has low relative error and can be applied in academic projects which require magnetic characterization of ferromagnetic materials developed in the laboratory.
{"title":"Measurement equipment for characterization of ferromagnetic materials","authors":"Tarcisio O. de Moraes, R. Freire, D. A. Vieira, C. P. Souza","doi":"10.1109/I2MTC.2015.7151473","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151473","url":null,"abstract":"Ferromagnetic materials have magnetic properties which determine its magnetic field conductivity characteristics. Such characteristics are extremely important for the proper selection and use of these materials in measurement processes, for example. Therefore, this paper presents an equipment for the characterization of ferromagnetic materials constructed in a laboratory. The experimental results of this equipment are acquired and compared with the experimental results obtained with an industrially manufactured apparatus called hysteresisgraph, designed to provide magnetic characterization of magnetic materials. The results of the comparison demonstrate that the equipment presented has low relative error and can be applied in academic projects which require magnetic characterization of ferromagnetic materials developed in the laboratory.","PeriodicalId":93508,"journal":{"name":"... IEEE International Instrumentation and Measurement Technology Conference. IEEE International Instrumentation and Measurement Technology Conference","volume":"46 1","pages":"1367-1371"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86008359","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 : 2015-01-01DOI: 10.1109/I2MTC.2015.7151462
Y. Fu, O. Xu, Weijie Chen, H. Ji
{"title":"Adaptive soft sensor modeling method based on multi-model dynamic fusion and its industrial application","authors":"Y. Fu, O. Xu, Weijie Chen, H. Ji","doi":"10.1109/I2MTC.2015.7151462","DOIUrl":"https://doi.org/10.1109/I2MTC.2015.7151462","url":null,"abstract":"","PeriodicalId":93508,"journal":{"name":"... IEEE International Instrumentation and Measurement Technology Conference. IEEE International Instrumentation and Measurement Technology Conference","volume":"235 1","pages":"1308-1313"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75744066","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 : 2014-05-12DOI: 10.1109/I2MTC.2014.6860879
Jeanne Elizabeth de Paula Braquehais, A. A. L. Souza
This article presents an energy-autonomous smart sensor targeting wind speed measurements for distributed energy generation. The sensor uses a combination of a micro-turbine coupled to a small-power DC generator, to convert wind speed into a voltage to be measured. Concurrently to measuring wind speed, the smart sensor harvests energy from the wind to power a 2.4 GHz transceiver, being able to send the wind speed information to a computer several meters away. The solution is able to properly work from wind speeds as low as 3.5 m/s, a typical lower limit for small and medium size commercial turbines. The low-cost smart sensor can be configured in a wireless network, so that several nodes can be deployed over buildings, traffic lights, trees, etc. We present the setup used to characterize the sensor, along with the experimental data collected, such as the relation between wind speed and output voltage or output power for different load conditions.
{"title":"Energy-autonomous wind speed smart sensor","authors":"Jeanne Elizabeth de Paula Braquehais, A. A. L. Souza","doi":"10.1109/I2MTC.2014.6860879","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860879","url":null,"abstract":"This article presents an energy-autonomous smart sensor targeting wind speed measurements for distributed energy generation. The sensor uses a combination of a micro-turbine coupled to a small-power DC generator, to convert wind speed into a voltage to be measured. Concurrently to measuring wind speed, the smart sensor harvests energy from the wind to power a 2.4 GHz transceiver, being able to send the wind speed information to a computer several meters away. The solution is able to properly work from wind speeds as low as 3.5 m/s, a typical lower limit for small and medium size commercial turbines. The low-cost smart sensor can be configured in a wireless network, so that several nodes can be deployed over buildings, traffic lights, trees, etc. We present the setup used to characterize the sensor, along with the experimental data collected, such as the relation between wind speed and output voltage or output power for different load conditions.","PeriodicalId":93508,"journal":{"name":"... IEEE International Instrumentation and Measurement Technology Conference. IEEE International Instrumentation and Measurement Technology Conference","volume":"1 1","pages":"931-935"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89483279","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 : 2014-05-12DOI: 10.1109/I2MTC.2014.6860759
C. Souto, Rosiane Agapito da Silva, A. Castro, Alexsandro José Virgínio dos Santos, R. C. Souza
{"title":"Thermal cycling effect on a shape memory and piezoelectric heterostructure","authors":"C. Souto, Rosiane Agapito da Silva, A. Castro, Alexsandro José Virgínio dos Santos, R. C. Souza","doi":"10.1109/I2MTC.2014.6860759","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860759","url":null,"abstract":"","PeriodicalId":93508,"journal":{"name":"... IEEE International Instrumentation and Measurement Technology Conference. IEEE International Instrumentation and Measurement Technology Conference","volume":"3 1","pages":"315-319"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79177234","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}
{"title":"Acceleration with FPGA for blocks and subblocks edge pattern classification in DCT domain images","authors":"Vega-Pineda Javier, Rivera-Mejia Jose, Sandoval-Rodriguez Rafael, Trujillo-Schiaffino Gerardo","doi":"10.1109/I2MTC.2014.6860834","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860834","url":null,"abstract":"","PeriodicalId":93508,"journal":{"name":"... IEEE International Instrumentation and Measurement Technology Conference. IEEE International Instrumentation and Measurement Technology Conference","volume":"27 1","pages":"707-712"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77941994","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 : 2014-05-12DOI: 10.1109/I2MTC.2014.6860995
V. M. Silva, S. Catunda
In this article, we examine different architectures of analog-to-digital converters (ADCs) and propose a flexible architecture based on sampling by crossing levels and adaptive quantization step, aiming at reducing the energy required to convert and process specific signals. The proposed architecture has parameters which can be configured by the user, in order to adapt the conversion process to the signal being sampled and to the requirements of power consumption of the target application. The architecture was modeled and simulated using Matlab, and tested with different signals, including an Electrocardiogram (ECG) signal. The digital logic was implemented in FPGA from a SystemVerilog description, functionally compatible with the Matlab model, and the analog part was implemented with discrete components.
{"title":"Flexible A/D converter architecture targeting sparse signals","authors":"V. M. Silva, S. Catunda","doi":"10.1109/I2MTC.2014.6860995","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860995","url":null,"abstract":"In this article, we examine different architectures of analog-to-digital converters (ADCs) and propose a flexible architecture based on sampling by crossing levels and adaptive quantization step, aiming at reducing the energy required to convert and process specific signals. The proposed architecture has parameters which can be configured by the user, in order to adapt the conversion process to the signal being sampled and to the requirements of power consumption of the target application. The architecture was modeled and simulated using Matlab, and tested with different signals, including an Electrocardiogram (ECG) signal. The digital logic was implemented in FPGA from a SystemVerilog description, functionally compatible with the Matlab model, and the analog part was implemented with discrete components.","PeriodicalId":93508,"journal":{"name":"... IEEE International Instrumentation and Measurement Technology Conference. IEEE International Instrumentation and Measurement Technology Conference","volume":"12 1","pages":"1496-1500"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84213676","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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