水稻穴盘高性能精播监测系统设计与验证

    Design and validation of the monitor system for high-performance rice precision planter

    • 摘要: 由于高速运作,水稻穴盘精播机的生产性能与指标(如穴盘合格率、过播率、漏播率等)难以实时监测。此外,吸风管风道破损等故障会导致上述指标出现大幅波动,严重影响了生产的连续性。为此,该研究提出了集成水稻穴盘播种识别与计数、吸风管风道故障预测于一体的智能化解决方案。首先,设计了水稻穴盘高性能精播监测总体系统架构,阐述了气吸型孔与播种合格率等的关联关系和工作原理。其次,采用YOLOv8+LADH+NWD(YOLO v8 - lightweight asymmetric dual-head normalized - Gaussian Wasserstein distance)算法实现水稻穴盘播种识别,通过优化模型架构与损失函数,提升算法在高频作业环境下的识别精度与计数效率,并基于识别结果进行穴盘生产指标(如穴盘合格率、过播率、漏播率等)的实时计数。此外,通过对合格率等生产指标的统计分析发现,吸风管风道破损等故障会导致生产指标出现显著波动,是影响设备生产性能的主要因素之一,为实现水稻穴盘精播机吸风管故障预测,提出了基于双向门控卷积单元-多头残差自注意力机制(bi-gate convolutional unit-multi-head residual self-attention, BiGCU-MHResAtt)的预测模型,用以解决故障频发造成的生产指标短时间内大量缺失/空值的问题。最终,开发了水稻穴盘高性能精播监测系统,并通过试验验证了模型的准确性和可靠性,实现了高速作业过程中,水稻穴盘播种的准确识别、高效计数,以及吸风管风道故障预测,助力农机智能化发展。

       

      Abstract: Due to high-speed operation, the production performance and indicators of rice plug tray precision seeders, such as tray qualification rate, over-sowing rate, and missed-sowing rate, are difficult to monitor in real time. In addition, failures such as air-suction pipe duct damage cause significant fluctuations in these indicators, which severely affect production continuity. To address these challenges, an intelligent solution integrating rice plug tray seeding recognition and counting with air-suction duct fault prediction was proposed. At the system architecture level, the overall high-performance monitoring framework for rice plug tray precision seeding was designed, in which the relationship between pneumatic suction holes and seeding qualification rate was analyzed, and the operating principles were systematically explained. Based on this design, an advanced detection approach was adopted, where the YOLOv8+LADH+NWD (You Only Look Once version 8 - Lightweight Asymmetric Dual-Head - Normalized Gaussian Wasserstein Distance) algorithm was employed to achieve seeding recognition in rice plug trays. By optimizing both the model architecture and the loss function, the algorithm’s recognition accuracy and counting efficiency were significantly enhanced under high-frequency operational conditions. Real-time statistical counting of production indicators such as tray qualification rate, over-sowing rate, and missed-sowing rate was achieved through the recognition results. Through statistical analysis of these indicators, it was observed that failures such as air-suction duct damage lead to considerable fluctuations in production performance. Such faults were identified as one of the primary factors influencing equipment stability and operational efficiency. To realize effective prediction of air-suction duct failures in rice plug tray precision seeders, a predictive model based on the Bi-Gate Convolutional Unit with Multi-Head Residual Self-Attention (BiGCU-MHResAtt) was proposed. This model was designed to address the issue of frequent failures that result in extensive short-term loss or absence of production data. By incorporating adaptive learning strategies and cross-condition robustness mechanisms, the model was further enhanced to ensure stability across diverse operational environments. By leveraging the integration of gated convolutional mechanisms with residual self-attention, robust temporal and contextual dependencies were captured, enabling accurate failure forecasting even in environments with noisy and incomplete datasets. On the basis of these methods, a high-performance monitoring system for rice plug tray precision seeding was developed. The proposed system was validated through comprehensive experimental studies, which confirmed the accuracy and reliability of both the recognition and prediction models. The system successfully enabled accurate recognition of rice plug tray seeding, efficient real-time counting of production indicators, and reliable fault prediction of air-suction ducts during high-speed operations. This achievement not only mitigated the risks associated with production instability but also contributed to the advancement of intelligent agricultural machinery. The presented research demonstrates the potential of integrating advanced computer vision algorithms with predictive modeling in agricultural machinery monitoring. By combining YOLOv8-based lightweight detection with BiGCU-MHResAtt-driven failure prediction, a holistic monitoring solution was achieved, capable of ensuring production stability in high-frequency seeding environments. The proposed framework therefore provides not only technical innovation but also a practical foundation for scaling intelligent seeding systems to large-scale agricultural production. The contribution is expected to provide significant support to the intelligentization of rice seeding machinery, promoting greater automation, reliability, and sustainability in modern agricultural practices.

       

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