Banca de DEFESA: LUCAS CRUZ DA SILVA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : LUCAS CRUZ DA SILVA
DATA : 08/07/2020
HORA: 15:00
LOCAL: Videoconferência -> https://conferenciaweb.rnp.br/webconf/laboratorio-de-sistemas-digitais-ufba
TÍTULO:

Decision support system for ultrasound non-destructive evaluation based on extreme learning machines embedded in microcontrollers.

PALAVRAS-CHAVES:

Non-destructive Evaluation, Time-of-Flight Diffraction, Extreme Learning Machine, Microcontroller

PÁGINAS: 101
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Elétrica
SUBÁREA: Medidas Elétricas, Magnéticas e Eletrônicas; Instrumentação
ESPECIALIDADE: Sistemas Eletrônicos de Medida e de Controle
RESUMO:

This work aims to establish a technological basis for an ultrasound non-destructive evaluation decision support system, that may be portable to a microcontrolled platform. Extreme learning machines, a fast training class of artificial neural network, are used as pattern classifier. The purpose is to obtain a dedicated system capable of recording the input data, training and operating the classifier system, and finally producing an integrity status indication for supporting the operator decision. A case study on integrity evaluation of weld beads in steel plates was considered. The basics of ultrasonic non-destructive testing and artificial neural networks are introduced. Further aspects are considered in order to accomplish the referred objective, such as: a comparison between a fast-training neural network and traditional ones; a method to reduce the feature set dimensionality and the proposed approach for system realization in microcontrollers. The results indicate that the system realizes the training step of a classifier in the microcontroller to carry out the classification of weld defects in similar accuracy performance as reported works in the literature.

MEMBROS DA BANCA:
Presidente - 2506534 - EDUARDO FURTADO DE SIMAS FILHO
Interno - 1856678 - PAULO CESAR MACHADO DE ABREU FARIAS
Externo ao Programa - 2530359 - ANTONIO CARLOS LOPES FERNANDES JUNIOR
Externo à Instituição - LUCIANO MANHÃES DE ANDRADE FILHO - UFJF
Externo à Instituição - ROMIS RIBEIRO DE FAISSOL ATTUX - UNICAMP