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- 저자 : Tayaoka, Eriko (검색결과 1 건)
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Development of Urban Mine Recycling Technology by Machine Learning
Terada, Nozomi,Ohya, Hitoshi,Tayaoka, Eriko,Komori, Yuji,Tayaoka, Atsunori The Korean Institute of Resources Recycling 2021 資源 리싸이클링 Vol.30 No.4
The field of recycling for waste electronic components, which is the typical example of an urban mine, requires the development of useful sorting techniques. In this study, a sorter based on image identification by deep learning was developed to select electronic components into four groups. They were recovered from waste printed circuit boards and should be separated to depend on the difference after treatment. The sorter consists of a workstation with GPU, camera, belt conveyor, air compressor. A small piece (less than 3.5 cm) of electronic components on the belt conveyor (belt speed: 6 cm/s) was taken and learned as teaching data. The accuracy of the image identification was 96% as kinds and 99% as groups. The optimum condition of sorting was determined by evaluating accuracies of image identification and recovery rates by blowdown when changing the operating condition such as belt speed and blowdown time of compressed air. Under the optimum condition, the accuracy of image classification in groups was 98.7%. The sorting rate was more than 70%.
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