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Converter end-point prediction model using spectrum image analysis and improved neural network algorithm

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Author(s): Hong-yuan Wen | Qi Zhao | Yan-ru Chen | Mu-chun Zhou | Meng Zhang | Ling-fei Xu

Journal: Optica Applicata
ISSN 0078-5466

Volume: 38;
Issue: 4;
Start page: 693;
Date: 2008;
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Keywords: spectrum | image | neural network | converter | end-point

ABSTRACT
Aiming at the present situation of the steelmaking end-point control at home and abroad, a neural network model was established to judge the end-point. Based on the colour space conversion and the fiber spectrum division multiplexing technology, a converter radiation multi-frequency information acquisition system was designed to analyze the spectrum light and image characteristic information, and the results indicate that they are similar at early-middle stage but dissimilar when approach the steelmaking blowing end. The model was trained and forecasted by using an improved neural network correction coefficient algorithm and some appropriate variables as the model parameters. The experimental results show the proposed algorithm improves the prediction accuracy by 15.4% over the conventional algorithm in 5s errors and the respond time is about 1.688s, which meets the requirements of end-point judgment online.

Tango Jona
Tangokurs Rapperswil-Jona

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