Lucas de Morais Toledo, J. Villanueva, S. Catunda, R. Freire
{"title":"Ultrasonic time-of-flight estimation based on maximum likelihood data fusion using triangular distribution","authors":"Lucas de Morais Toledo, J. Villanueva, S. Catunda, R. Freire","doi":"10.1109/I2MTC.2014.6860793","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860793","url":null,"abstract":"In this paper, a data fusion proceeding was developed based on the Maximum Likelihood Estimation technique (MLE), considering the variables to be fused, having symmetric triangular probability distributions. This procedure was utilized to the wind speed measurement by means of indirect measure of the ultrasonic time-of-flight (ToF), fusing two independent measurements obtained by threshold detection and phase difference techniques. A computational model was built and simulations with different levels of additive noise and Wind velocities were carried out. The results were satisfactory, evidencing that this technique is quite promissory to instrumentation and measure applications.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122949791","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. D'Antona, G. Santacatterina, Nima Seifnaraghi, Franco Brindani
{"title":"Water temperature estimation in induction cooker for higher energy efficiency","authors":"G. D'Antona, G. Santacatterina, Nima Seifnaraghi, Franco Brindani","doi":"10.1109/I2MTC.2014.6860800","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860800","url":null,"abstract":"This paper proposes a method in order to estimate the temperature of the water content of a vessel placed over an induction cook top in a non-invasive manner. The thermal procedure includes rising the temperature of water from ambient level to boiling phase. The aspects regarding change of thermo-physical properties and phase change are considered. Kalman filter has been applied as an estimator benefiting from a developed mathematical model. This is done using an electrical circuit as the equivalent of the lumped thermal model of the process. In order to take into account the practical implementation the different possibilities regarding the types of the container and amount of the content have been introduced as uncertainties to the Kalman filter parameters. The results of implementation of the method have been evaluated using experimental tests.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123019454","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. Conti, P. Placidi, D. Magalotti, Lucia Bissi, M. Paolucci, A. Scorzoni, L. Servoli
{"title":"A portable dosimetric system based on a CMOS image sensor for radiation protection in Interventional Radiology","authors":"E. Conti, P. Placidi, D. Magalotti, Lucia Bissi, M. Paolucci, A. Scorzoni, L. Servoli","doi":"10.1109/I2MTC.2014.6860754","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860754","url":null,"abstract":"Systems based on Wireless Sensor Networks (WSN) provide monitoring for a wide range of applications in healthcare. Network nodes take care of data acquisition, processing and transmission and are therefore required to be wireless and low-power. The authors present the first version of the prototype of a portable wireless dosimetric system based on a commercial CMOS image sensor to be used during Interventional Radiology (IRad) procedures. A proprietary data processing and reduction algorithm has been implemented in the prototype. Current consumption of the transmitting unit of the prototype has been measured for battery sizing. Both system response and algorithm performance have been investigated and consistency with results obtained using the same model of CMOS sensor with its own acquisition system provided by the manufacturer has been demonstrated.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123669118","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":"Initial measurements and results of a multi-channel, adaptive pre-distortion system for an airborne phased array radar","authors":"R. Lee, M. Yeary, C. Fulton, R. Rincon","doi":"10.1109/I2MTC.2014.6860948","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860948","url":null,"abstract":"With the advancement of synthetic aperture radars (SAR) and phased array radars, research is being done with a variety of amplifier/antenna schemes and over a wide range of frequencies. One major problem is spectral regrowth due to AM/AM and AM/PM effects due to memory effects and when operating near saturation. The distorted output of these systems can leak out-of-band and therefore create problems, such as unauthorized broadcast frequencies and unintended beam steer angles. By properly utilizing digital pre-distortion, most, if not all, of these out-of-band components can be eliminated, allowing radars to be operated in much wider bands and closer to the frequency limits. Work is being done at NASA's Goddard Space Flight Center on the Ecological Synthetic Aperture Radar (EcoSAR) to address these issues in this system. When completed, EcoSAR will be used to measure vegetation density from an airborne system in place of the traditional method of taking measurements on the ground and extrapolating. EcoSAR will potentially be operated in populated areas where broadcast frequencies are highly regulated and spectral regrowth will need to be minimized. The university team is partnering with NASA to develop advanced digital radar techniques for EcoSAR that will enable a new class of radar operations that improves science, enhances system performance, facilitates a path for space-borne implementation, and pushes technology beyond the current state-of-the-art, while keeping the costs to execute the project low. The results section of this paper provides details of the progress in this important area of research.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121999076","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":"Environmental gas sensing in complex environments","authors":"D. Preethichandra","doi":"10.1109/I2MTC.2014.6860991","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860991","url":null,"abstract":"This paper describes a proposed dynamically reconfigurable sensor networking topology for hardware efficient gas sensing system for complex environments. The network is initially established with a predetermined star topology, but depending on the measured parameters at any given node, a small mesh connected sub network is established in the geographic vicinity of the node with deviated parameters. This modified part of the network nodes still have the star connection with the base station, but have their own mesh connected sub net until the measure parameters returned to normal. The proposed reconfigurable network may have different nodes on the same main network measuring same parameters at different time resolution. This depends on the need for measurement to gather more accurate information of gas conditions at a certain location where the readings have deviated from the expected band. This dynamic reconfigurable feature prevent all the network nodes turning into more rapid measurement unnecessarily when only a part of the network geographic area is affected by high gas concentrations. Thus it optimizes the energy usage of the entire network.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122595155","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}
Vanuza M. Nascimento, T. Silva, V. S. G. Martins, P. C. Lobo, R. Freire
{"title":"Output dynamic range of radiometers based on thermoresistive sensors","authors":"Vanuza M. Nascimento, T. Silva, V. S. G. Martins, P. C. Lobo, R. Freire","doi":"10.1109/I2MTC.2014.6860949","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860949","url":null,"abstract":"Thermo-resistive sensors are widely used in metrology and instrumentation systems. In the case of radiometers used in measurement of solar radiation, the classical architecture uses the principle of electrical equivalence in which the electrical sensor is kept at a constant temperature. The objective of this study is to evaluate the influence of environmental temperature variation according to the dynamic output voltage of this type of radiometer. In addition, it was evaluated the output dynamic voltage for a constant temperature difference between the sensor and the environment. The sensors used were NTC and PTC, with analog voltage and pulse width outputs.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125855489","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":"Standard for electric distorted waveforms","authors":"L. Trigo, Ines Camacho, D. Slomovitz","doi":"10.1109/I2MTC.2014.6860769","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860769","url":null,"abstract":"This paper describes the advance in the development and implementation of a new standard for measuring voltage, current and power under distorted conditions in the Laboratory of UTE (designed National Laboratory in Uruguay). It covers both sinusoidal and distorted waveforms up to the 50th harmonic. In particular, this paper shows computational algorithms and their implementation with high precision 8 ½ digit multimeters. Real waveforms generated by a calibrator, similar to waveforms found in power networks, were analyzed by the proposed system, discussing the measurement errors.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125891168","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":"CRYSEED: An automatic 8-bit cryptographic algorithm developed with genetic programming","authors":"R. Semente, A. Salazar, F. Oliveira","doi":"10.1109/I2MTC.2014.6860905","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860905","url":null,"abstract":"In this paper a cryptographic algorithm optimized for wireless sensor networks is proposed and developed automatically using the technique of genetic programming. The proposed algorithm, CRYSEED, was developed considering the safety and computational efficiency, important to keep the algorithm fast, thus consuming less energy and increasing the autonomy of embedded networking devices. In genetic programming were used in the fitness function the metrics maximum deviation, irregular deviation and algorithm running time, to find a safe and fast algorithm. CRYSEED algorithm was compared with the AES, showing better performance in all aspects tested.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124955705","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":"Analysis of the optimal grid resolution for the forecasting of wind energy in different wind farms","authors":"A. Arce, G. Cazes, S. Mello","doi":"10.1109/I2MTC.2014.6860998","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860998","url":null,"abstract":"This work analyzes different grid resolution and domains for numerical forecasts of wind energy injected in the electric grid by the wind farms “Emanuele Cambilargiu” and “Kentilux”, in Uruguay. The analysis shows that the optimal horizontal resolution for the wind farm installed in a flat plate terrain (Kentilux wind farm) is 3.3 km, and for more steep terrain (Emanuelle Cambilargiu wind farm), the optimal horizontal resolution is 1 km.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130534420","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":"QoS analysis of routing protocols in wireless sensor networks in the monitoring of wind farms","authors":"F. Oliveira, R. Semente, T. Melo, A. Salazar","doi":"10.1109/I2MTC.2014.6860904","DOIUrl":"https://doi.org/10.1109/I2MTC.2014.6860904","url":null,"abstract":"The rising global demand of energy and the scarcity of fossil fuels can be mentioned as factors that justify the investment in renewable energies sources in the world, such as the wind power. Wind power has tremendous potential to provide renewable energy without reliance on traditional fossil fuel technologies. Conditional monitoring of wind turbines can help to avert unplanned downtime due to component failure, and this can be done via low-cost wireless sensor networks. This paper presents the Quality of Service (QoS) analysis in the monitoring of wind farms by using Wireless Sensor Networks (WSNs) based on the IEEE 802.15.4 standard using hierarchical and flat routing protocols through a simulated environment in the presence and absence of faults in the nodes. The results presented in this paper will assist in choosing the best protocol that guarantees the best response time of the system and consequently, improving the safety margin, preventing accidents that can damage the equipment and cause huge losses.","PeriodicalId":331484,"journal":{"name":"2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130571168","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}