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Experimental and Numerical Study of Computer Vision-Based Real-Time Monitoring of Polymeric Particle Mixing Process in Rotary Drum
被引:1
作者:
Byun, Junghyun
[1
]
Son, Kwon Joong
[1
]
机构:
[1] Hongik Univ, Dept Mech & Design Engn, Sejong 30016, South Korea
来源:
关键词:
polymer particle mixing;
mixing process monitoring;
computer vision;
discrete element method;
mixing index;
drum mixer;
DISCRETE ELEMENT METHOD;
DEM SIMULATION;
INDEX;
SEGREGATION;
DYNAMICS;
SYSTEMS;
MIXER;
D O I:
10.3390/polym16111524
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
In the drum mixing of particulate polymers, segregation may occur. By measuring the mixing status in real time, it is possible to implement corrective measures to prevent separation and improve the efficiency of the process. This study aims to develop and validate a real-time vision system designed to monitor the mixing process of polymeric particles in a rotary drum mixer, employing a novel centroid-based model for determining the mixing index. The proposed centroid-based model is capable of addressing the radial particle segregation issue without the need for extra image-processing procedures like image subdivision or pixel randomization. This innovative approach greatly improves computational efficiency by processing over 68 image frames per second. The new processing method is 2.8 times faster than the gray-level co-occurrence matrix method and 21.6 times faster than the Lacey index approach. This significantly improves real-time monitoring capabilities and enables real-time image processing using only affordable single-board computers and webcams. The proposed vision-based system for monitoring rotary drum mixing has undergone validation via cross-validation using discrete element method simulations, ensuring its accuracy and reliability.
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页数:15
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