رویکرد جدید حسگر صوتی برای پیشبینی درصد دانه‌های پرشدۀ برنج بر اساس طیف جذب صوتی به روش طیف عمیق

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری گروه مهندسی مکانیک بیوسیستم، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران

2 دانشیار گروه مهندسی مکانیک بیوسیستم دانشگاه شهرکرد، شهرکرد، ایران

3 دانشیار گروه مهندسی مکانیک بیوسیستم، دانشکده کشاورزی، دانشگاه اراک، ارک، ایران

4 دانشیار گروه مهندسی مکانیک دانشگاه صنعتی اصفهان، اصفهان، ایران

چکیده

برنج یکی از اصلی‌ترین غلات جهان شناخته می‌شود که دوسوم جمعیت جهان به‌ویژه در کشورهای آسیایی، از آن تغذیه می‌کنند. ارزیابی دقیق درصد دانه‌های پرشده (PFG) برای کارایی و کیفیت برداشت برنج حیاتی است. روش‌های سنتی اندازه‌گیری درصد دانه‌های پرشده کاربردی و مبتنی بر قضاوت شخصی است. این مطالعه رویکردی نوآورانه و غیرمخرب بر پایه حسگر صوتی در کنار مدل‌های یادگیری عمیق برای پیش‌بینی درصد دانه‌های پرشده بر اساس طیف صوتی دانه‌های برنج ارائه می‌دهد. با استفاده از معماری پیشرفته یادگیری عمیق، طیف عمیق که مستقیماً روی داده‌های طیفی خام کار می‌کند، نیاز به پیش‌پردازش حذف شد و دقت پیش‌بینی بهبود یافت. از لوله امپدانس تغییریافته، برای اندازه‌گیری طیف صوتی استفاده شد؛ سپس با استفاده از مدل طیف عمیق برای پیش‌بینی درصد دانه‌های پرشده، یافته‌ها تجزیه‌وتحلیل گردید. نتایج نشان داد که این رویکرد تجزیه‌وتحلیل داده‌های طیفی کمّی را به‌طور قابل توجهی بهبود بخشیده و پیش‌بینی قابل اعتمادی از پرشدگی دانه‌های برنج ارائه می‌دهد. دقت پیش‌بینی مدل طیف عمیق در مقایسه با روش‌های سنتی به‌طور قابل توجهی بالاتر بود و خطای جذر میانگین مربعات پیش‌بینی (RMSEP) پایین (05/0 ± 24/0) و ضریب تعیین (R²)  (02/0 ± 95/0) بدست آمد. پیش‌بینی که برای ارزیابی کیفیت برنج، اصلاح نژاد و تحقیقات ژنتیکی برنج حیاتی است. این مطالعه دیدگاه و روش‌های جدیدی را درزمینۀ پیش‌بینی و طبقه‌بندی کیفیت دانه‌ها با استفاده از تحلیل طیف صوتی و یادگیری عمیق به حوزه تحقیقات کشاورزی ارائه می‌دهد که می‌تواند برای پژوهش‌های آتی در این زمینه مفید باشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

A new acoustic sensing approach for predicting the percentage of filled rice grains based on the acoustic absorption spectrum using the Deep Spectra

نویسندگان [English]

  • Majid Fathi Ghalemiri 1
  • Ali Maleki 2
  • Majid Lashgari 3
  • Ali Loghmani 4
1 Ph.D. Student, Department of Mechanical Engineering of Biosystems, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran
2 Associate professor of Mechanical Engineering of Biosystems Department, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran
3 Associate Professor, Department of Mechanical Engineering of Biosystems, Faculty of Agriculture, Arak University, Arak, Iran
4 Associate Professor, Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iran
چکیده [English]

Rice is recognized as one of the main cereals in the world, feeding two-thirds of the global population, especially in Asian countries. Accurate assessment of the percentage of filled grains (PFG) is crucial for the efficiency and quality of rice harvesting. Traditional methods of measuring PFG are practical and based on personal judgment. This study introduces an innovative and non-destructive approach based on an acoustic sensor alongside deep learning models to predict PFG based on the acoustic spectrum of rice grains. Using an advanced deep learning architecture, the Deep Spectrum, which works directly on raw spectral data, eliminates the need for preprocessing and enhances prediction accuracy. A modified impedance tube was used to measure the acoustic spectrum, which was then analyzed using the Deep Spectrum model to predict PFG. Results indicated that this approach significantly improves the quantitative analysis of spectral data and provides a reliable prediction of rice grain filling. The prediction accuracy of the Deep Spectrum model was significantly higher compared to traditional methods, with a low root mean square error of prediction (RMSEP) of 0.24 ± 0.05 and a coefficient of determination (R²) of 0.95 ± 0.02. This prediction is vital for assessing rice quality, breeding, and genetic research. This study introduces new perspectives and methods in the field of grain quality prediction and classification using acoustic spectrum analysis and deep learning, which could be beneficial for future research in this area.

کلیدواژه‌ها [English]

  • Acoustic Absorption Coefficient
  • Deep Spectra
  • Non-destructive Measurement
  • Rice Acoustic Sensor
  • Spectral Analysis

New acoustic sensing approach for predicting the percentage of filled rice grains based on the acoustic absorption spectrum using the Deep Spectra

 

EXTENDED ABSTRACT

Introduction

Rice serves as a staple food for a substantial portion of the global population, particularly in Asian countries. Traditional methods of determining the percentage of filled grains (PFG) in rice are labor-intensive and often rely on subjective judgments. This study introduces an innovative and non-destructive approach that leverages a new acoustic sensing technology combined with deep learning models. The primary innovation of this approach is its use of the acoustic absorption spectrum to predict the PFG without the need for pre-processing the spectral data. This method holds significant promise for enhancing the efficiency and accuracy of rice quality assessments, crucial for agricultural productivity and research in rice breeding and genetics. By employing advanced deep learning architectures, this study aims to overcome the limitations of traditional grain analysis methods, offering a more reliable and scalable solution.

Material and Methods

The research utilizes an altered impedance tube to capture the acoustic spectrum of rice grains. This method measures how sound waves are absorbed by the grains, providing a detailed spectral profile. The acoustic data collected is then analyzed using a deep learning model, specifically designed for this study. The model, referred to as DeepSpectra, operates on the raw spectral data directly, eliminating the need for the usual pre-processing steps that can degrade data quality. This model employs a convolutional neural network (CNN) architecture, which is highly effective in pattern recognition tasks. CNNs utilize layers of filters to process spatial hierarchies in data, making them ideal for handling complex spectral data. This approach not only enhances the prediction accuracy but also significantly speeds up the analysis process by leveraging the model's ability to learn and generalize from the data presented.

Results and Discussion

The results of this study were highly promising, demonstrating that the deep learning model, DeepSpectra, significantly outperformed traditional methods in predicting the percentage of filled grains in rice. The model achieved high accuracy, showcasing its capability to handle the raw spectral data effectively without the need for manual preprocessing. This is a considerable advancement over traditional grain analysis methods, which are slower and often less reliable. The discussion also highlights how the model's deep learning architecture, which includes multiple convolutional and pooling layers, contributes to its robust performance by effectively extracting and learning important features from complex datasets. The study further discusses the potential applications of this technology in the field of agricultural research and grain quality assessment, suggesting that it could be a valuable tool for rice breeders and geneticists looking to improve crop yields and grain quality.

Conclusion

The study concludes that the novel use of acoustic sensing technology combined with a deep learning analysis model offers a powerful and non-destructive method for accurately predicting the percentage of filled grains in rice. The acoustic absorption spectrum, as analyzed by the DeepSpectra model, provides a reliable indicator of grain quality, which is essential for rice breeding and genetic research. The implications of these findings are significant, as they suggest a shift towards more automated, precise, and efficient methods of grain analysis. This could lead to improvements in rice production strategies and better food security globally. Additionally, the study underscores the potential for expanding this technology to other grains and agricultural products, which could broadly revolutionize quality assessment in agriculture. The researchers highlight the need for further studies to refine the technology and fully realize its potential across different environments and grain types.

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مهندسی بیوسیستم ایران
دوره 54، شماره 4
دی 1402
صفحه 87-102

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  • تاریخ دریافت: 21 اردیبهشت 1403
  • تاریخ بازنگری: 27 تیر 1403
  • تاریخ پذیرش: 08 مرداد 1403

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