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논문 기본 정보

저자정보
(Hanoi University of Industry) (Hanoi University of Industry) (Hanoi University of Industry) (Hanoi University of Industry) (Hanoi University of Industry) (Hanoi University of Industry) (Hanoi University of Industry) (Hanoi University of Science and Technology)
저널정보
대한산업공학회 Industrial Engineering & Management Systems Industrial Engineering & Management Systems Vol.22 No.4
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    초록·키워드

    This study proposes a new method for quality monitoring of injection moulded parts in the context of Industry 4.0. Multi-sensor data is important for monitoring and analysing any possible state of product quality. A new integrated method for monitoring the product quality of plastic injection moulding process is proposed, which combines an unsupervised feature selection method and an optimized predictor. First, an autoencoder feature selection (AE-FS) method is formed with a hidden bottleneck layer to extract the features of the original multi-sensor data. Second, a regression model is constructed to forecast product quality. Least squares support vector regression (LSSVR) is used as the basic model, combined with an optimal parameter pair that is exploited by the sparrow search algorithm (SSA), named LSSVR-SSA. The LSSVR-SSA model is then used to predict the moulded product weight based on the machine’s original data. Overall, the integrated AE-FS-LSSVR-SSA prediction method provides an effective way to monitor product quality in plastic injection moulding processes using multi-sensor data and advanced data analysis techniques. The proposed method is evaluated by conducting experiments on three different product process statuses with varying parameters. The results of these experiments show that the method’s identification accuracy is exceptionally high, reaching 99.04%.

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