0000000000378372

AUTHOR

A. Pulizzotto

showing 3 related works from this author

The Use of Accelerometers and Gyroscopes to Estimate Hip and Knee Angles on Gait Analysis

2014

In this paper the performance of a sensor system, which has been developed to estimate hip and knee angles and the beginning of the gait phase, have been investigated. The sensor system consists of accelerometers and gyroscopes. A new algorithm was developed in order to avoid the error accumulation due to the gyroscopes drift and vibrations due to the ground contact at the beginning of the stance phase. The proposed algorithm have been tested and compared to some existing algorithms on over-ground walking trials with a commercial device for assisted gait. The results have shown the good accuracy of the angles estimation, also in high angle rate movement.

EngineeringTransducersComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONMonitoring AmbulatoryAccelerometerlcsh:Chemical technologySensitivity and SpecificityBiochemistryArticleAnalytical Chemistrylaw.inventionGait (human)gait analysiSettore ING-INF/04 - AutomaticaInertial measurement unitlawAccelerometryHumansHigh anglelcsh:TP1-1185Electrical and Electronic EngineeringGaitInstrumentationSimulationgait analysis; joint angles estimation; inertial sensorsArthrometry ArticularStance phasebusiness.industryReproducibility of ResultsSignal Processing Computer-AssistedGyroscopeEquipment DesignActigraphyinertial sensorsAtomic and Molecular Physics and OpticsEquipment Failure AnalysisVibrationGait analysisgait analysisjoint angles estimationbusinessAlgorithmsSensors
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A DC-DC power converter for PV module characterization

2014

In this paper, a standard-compliant electronic load setup for PV module curve detection which features high accuracy, low cost and components count is proposed. The proposed device is based on a DC-DC power converter in open-loop configuration. The proposed system is designed according to regulation constraints in order to achieve high performances in curve detection. Design criteria are discussed. The model is implemented in PSIM environment. Simulation based on data input of a commercial PV Conergy E215P module are carried out under several environmental conditions to show the accuracy of the proposed electronic load. Simulation results are reported.

Engineeringbusiness.industryPhotovoltaic systemOpen-loop controllerDC-DC converterSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciPV characterizationPower (physics)Modeling and simulationElectronic loadmodeling and simulationPV moduleElectronic engineeringData inputbusinessSimulation basedDc dc converter2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion
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A standard-compliant prototype for PV module curve detection

2014

In this paper, a prototype for PV module curve detection which features low cost and size and ensures high accuracy is proposed. The proposed architecture is based on a buck-boost converter in open-loop configuration. The proposed architecture is fully compliant with actual standard IEC60904. The duty-cycle control algorithm and its own effects on system performances are accurately investigated. The comparison of different duty-cycle patterns is carried out and performance evaluation is performed. Simulation results are shown to perform a valuable comparison of control algorithms. Preliminary experimental results on a laboratory prototype are presented.

EngineeringControl algorithmPhotovoltaic I-V characteristicbusiness.industryBuck-boost converterMPPTSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciPV modulePhotovoltaic generatorArchitecturePV module Photovoltaic generator photovoltaic I-V characteristics buck-boost converter MPPT electronic load.businessComputer hardwareSimulationElectronic load
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