Zamanla Değişen Iır Alçak Geçiren Filtre ile Dinamik Tartım Yöntemi
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2022
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Sanayide üretimden sevkiyat aşamasına kadar birçok alanda kullanılan otomatik ağırlık kontrol sistemi, üç adet konveyör bant, en az iki adet fotosel, yük hücresi, işlemci, kullanıcı için kontrol ekranı ve reddedici/yönlendirici kollarından oluşmaktadır. Ağırlık ölçerken, yük hücresi tarafından alınan ölçüm sinyalinin filtrelenmesi aşamasında literatürde kaskat yapıda zamanla değişen alçak geçiren filtrenin önemli bir yeri olduğu gözlemlenmiş ancak sonuca ulaşma konusunda oldukça fazla filtre adedinin mevcut olduğu gözlemlenmiştir. Sonuçlara ulaşma aşamasının hızlandırılması amacıyla bu çalışmada zamanla değişen alçak geçiren filtre ile farklı bir yaklaşım denenmiştir. Sonuca daha hızlı ulaşabilmek için kaskat bağlı alçak geçiren filtre adedi önem arz etmektedir. Filtre adım adım uygulanarak oluşan salınımlardan ürünün ağırlığına minimum filtre adedi ile ulaşmak hedeflenmiştir. Matlab'ta yapılan deneyler sonucunda çok yüksek hızlarda bu işlemle yönetmelikte belirtilen hata limitleri içerisinde sonuçların elde edilemediği görülmüş olup hata limitleri içerisinde elde edilen maksimum hız belirtilmiştir. Sonuç olarak filtre adedi azaltılıp, sönümleme hızlandırılarak oluşan salınımlardan ağırlık verisine yönetmelikte verilen hata sınırları içerisinde ulaşılmıştır.
The automatic weight control system, in other words checkweigher is used in many areas from production to shipment in the industry, consists of three conveyor belts, at least two photocells, load cell, processor, control screen for the user and rejector/router arms. It has been observed in the literature that the time-varying low-pass filter in the cascade structure plays an important role in the filtering of the measurement signal received by the load cell while reaching the product mass, but it has been observed that quite a lot of filters are used to reach the result. In this study, a different approach was tried with a time-variant low-pass filter in order to accelerate of reaching the results. The number of cascade form low-pass filter used in filtering is important to get the accurate weight. By applying the filter step by step, it is aimed to reach the mass of the products from the oscillations with minimum number of filters. As a result of the experiments carried out in MATLAB, it was observed that the results could not be obtained within the error limits specified in the regulation with this process at very high speeds. The maximum speed obtained within the error limits was specified. As a result, by reducing the number of filters and increasing the damping, the mass of product from the oscillations were reached faster within the error limits given in the regulation.
The automatic weight control system, in other words checkweigher is used in many areas from production to shipment in the industry, consists of three conveyor belts, at least two photocells, load cell, processor, control screen for the user and rejector/router arms. It has been observed in the literature that the time-varying low-pass filter in the cascade structure plays an important role in the filtering of the measurement signal received by the load cell while reaching the product mass, but it has been observed that quite a lot of filters are used to reach the result. In this study, a different approach was tried with a time-variant low-pass filter in order to accelerate of reaching the results. The number of cascade form low-pass filter used in filtering is important to get the accurate weight. By applying the filter step by step, it is aimed to reach the mass of the products from the oscillations with minimum number of filters. As a result of the experiments carried out in MATLAB, it was observed that the results could not be obtained within the error limits specified in the regulation with this process at very high speeds. The maximum speed obtained within the error limits was specified. As a result, by reducing the number of filters and increasing the damping, the mass of product from the oscillations were reached faster within the error limits given in the regulation.
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Alçak Geçiren Filtre, Dinamik Tartım Yöntemi
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Gülbaş, M. C., Ayhan, T., & Yalçın, M. E. (15-18 Eylül 2022). Zamanla Değişen IIR Alçak Geçiren Filtre ile Dinamik Tartım Yöntemi. TOK 2022 Otomatik Kontrol Ulusal Kongresi. ss. 1-6. Elazığ, Türkiye
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