Design of a model-based observer for estimation of steel strip tension in continuous galvanizing/annealing lines

Lu, Yaobin; Jee, Chang-Woon; Pagilla, Prabhakar R.

doi:10.1109/acc.2016.7525418

Cited by 6 publications

(2 citation statements)

References 11 publications

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“…Note that a general camera-based computer vision process is also helpful in dye detection and many other industrial applications. [14,15] Many attempts in this area of eye gaze or movement detection are reported. Four new features are proposed by [16] compared to old methods to locate the eye positions.…”

Section: Literature Analysismentioning

confidence: 99%

Real-time eye blink detection using general cameras: a facial landmarks approach

Youwei

2023

ISJEA

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Eyes are essential in Human-Computer Interaction (HCI) as they provide valuable insights into a person's thoughts and intentions. However, current eye movement analysis methods require specialized equipment or high-quality videos, making them less accessible and usable. This paper proposes a real-time eye blink detection algorithm that uses standard cameras, making it widely applicable and convenient. The approach achieves accurate and efficient eye blink detection by leveraging the Eye Aspect Ratio (EAR) algorithm and facial landmarks technique. This paper developed a Python application and conducted tests using a laptop webcam to validate the performance and practicality of the algorithm across various settings. The algorithm's effectiveness depends on carefully tuning parameters such as threshold and frame rate. The results demonstrate the algorithm's potential in real-time eye blink detection, with potential applications in drowsiness detection during driving, prevention of Computer Vision Syndrome, and assistance for individuals with disabilities. By enabling eye blink detection using commonly available cameras, the algorithm paves the way for integrating eye movement analysis into everyday devices and systems, enhancing user experience and enabling more natural interactions. Further refinement and optimization of this approach hold promise for a wide range of applications in HCI, healthcare, and beyond, opening up new possibilities for research and innovation.

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Section: Literature Analysismentioning

confidence: 99%

Real-time eye blink detection using general cameras: a facial landmarks approach

Youwei

2023

ISJEA

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“…The proper control algorithm for tension distribution among the bridle rolls must ensure precise elongation control of the strip and balanced loading of the roll drives. The following approaches are used for strip tension control: indirect tension control by speed difference of the rolls [10], speed with torque limit tension indirect control [11,12], tension control by utilization of tension sensors [13][14][15][16][17], and sensorless tension control [18][19][20][21]. A detailed review of all these control approaches can be found in [22].…”

Section: Introductionmentioning

confidence: 99%

Distribution of the Strip Tensions with Slip Control in Strip Processing Lines

Magura¹,

Kyslan

Padmanaban

et al. 2019

Energies

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The control of tension in processing lines for metal strips tackles several problems. The process of achieving high tension driven by a multi-motor drive system, where the motors are mechanically coupled by a strip, is affected by the maximal torque of each drive, by friction between the strip and the surface of the tension roll, and by the wrap angle. The friction itself and the wrap angle are described by the e µα factor, which can be also calculated as the ratio of tensions in the strip in the previous section and subsequent section of the multi-motor drive. In this paper, an algorithm for the proper distribution of tensions in the strip for a multi-motor drive system of a continuous processing line is revealed. The algorithm ensures the tension distribution among particular drives of the tension leveler while respecting the physical limits of the drives and also preserving the desired conditions of a constant ratio between the input and output tensions for all drives in the leveler. The algorithm also prevents overloading of the drives. Finally, the algorithm was implemented in a control system of a strip processing line, and the obtained results correspond with the simulations. This, in turn, confirms the correctness of the algorithm design.

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Analysis of thermal energy performance in continuous annealing furnace

Hajaliakbari¹,

Hassanpour

2017

Applied Energy

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Design of a model-based observer for estimation of steel strip tension in continuous galvanizing/annealing lines

Cited by 6 publications

References 11 publications

Real-time eye blink detection using general cameras: a facial landmarks approach

Real-time eye blink detection using general cameras: a facial landmarks approach

Distribution of the Strip Tensions with Slip Control in Strip Processing Lines

Analysis of thermal energy performance in continuous annealing furnace

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