Autonomous quality monitoring for complex manufacturing process

This research investigates the possibilities of using different types of incremental learning algorithms and deep neural networks to monitor the quality of products produced from the complex manufacturing process through binary and multi-class classification to identify defects quickly. To find o...

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Bibliographic Details
Main Author: Lee, Wen Siong
Other Authors: Mahardhika Pratama
Format: Final Year Project (FYP)
Language:English
Published: Nanyang Technological University 2020
Subjects:
Online Access:https://hdl.handle.net/10356/138521
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author Lee, Wen Siong
author2 Mahardhika Pratama
author_facet Mahardhika Pratama
Lee, Wen Siong
author_sort Lee, Wen Siong
collection NTU
description This research investigates the possibilities of using different types of incremental learning algorithms and deep neural networks to monitor the quality of products produced from the complex manufacturing process through binary and multi-class classification to identify defects quickly. To find out which algorithm or neural network has the best result, I compared the performance of 4 different algorithms and 3 different neural networks using a set of time-series data collected as a result of the production of a transparent mold from the Molding machine. The performance is done by comparing with binary classification results from 4 different test settings. Additionally, the neural networks will also be tested with multi-class classification. The result has shown that deep neural networks generally performed better than incremental learning algorithms with a prediction accuracy of >93% in all test settings in both binary and multi- class classification. However, the prediction accuracy is slightly lower in the multi-class classification. Therefore, future work such as combining Convolutional Neural Network (CNN) and the deep neural network can be explored to boost the accuracy of the multi-class classification further.
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spelling ntu-10356/1385212020-05-07T12:42:40Z Autonomous quality monitoring for complex manufacturing process Lee, Wen Siong Mahardhika Pratama School of Computer Science and Engineering Singapore Institute of Manufacturing Technology mpratama@ntu.edu.sg Engineering::Computer science and engineering This research investigates the possibilities of using different types of incremental learning algorithms and deep neural networks to monitor the quality of products produced from the complex manufacturing process through binary and multi-class classification to identify defects quickly. To find out which algorithm or neural network has the best result, I compared the performance of 4 different algorithms and 3 different neural networks using a set of time-series data collected as a result of the production of a transparent mold from the Molding machine. The performance is done by comparing with binary classification results from 4 different test settings. Additionally, the neural networks will also be tested with multi-class classification. The result has shown that deep neural networks generally performed better than incremental learning algorithms with a prediction accuracy of >93% in all test settings in both binary and multi- class classification. However, the prediction accuracy is slightly lower in the multi-class classification. Therefore, future work such as combining Convolutional Neural Network (CNN) and the deep neural network can be explored to boost the accuracy of the multi-class classification further. Bachelor of Engineering (Computer Science) 2020-05-07T12:42:40Z 2020-05-07T12:42:40Z 2020 Final Year Project (FYP) https://hdl.handle.net/10356/138521 en SCSE19-0075 application/pdf Nanyang Technological University
spellingShingle Engineering::Computer science and engineering
Lee, Wen Siong
Autonomous quality monitoring for complex manufacturing process
title Autonomous quality monitoring for complex manufacturing process
title_full Autonomous quality monitoring for complex manufacturing process
title_fullStr Autonomous quality monitoring for complex manufacturing process
title_full_unstemmed Autonomous quality monitoring for complex manufacturing process
title_short Autonomous quality monitoring for complex manufacturing process
title_sort autonomous quality monitoring for complex manufacturing process
topic Engineering::Computer science and engineering
url https://hdl.handle.net/10356/138521
work_keys_str_mv AT leewensiong autonomousqualitymonitoringforcomplexmanufacturingprocess