Authors

Abstract

Harvest quality is one of the key indicators for evaluating the performance of mechanized wheat harvesting. To enable real-time monitoring of harvest quality during the wheat combine harvesting process, this study integrates an online detection system specifically designed for wheat harvest quality. The system is capable of real-time monitoring of threshing and cleaning losses, breakage rate, and impurity rate. To assess the effectiveness of the online detection system, field experiments were conducted. The experimental results showed that the average threshing and cleaning loss rates of the harvester measured manually were 0.69% and 0.75%, respectively, while those detected by the online system were 0.52% and 0.50%, respectively. The average grain breakage rates obtained through manual measurement were 0.67% and 0.58%, whereas the system detected breakage rates of 0.49% and 0.52%, respectively. For impurity rate, manual measurements yielded average values of 0.81% and 0.69%, while the system recorded 0.73% and 0.67%, respectively. The results demonstrate that the developed online wheat harvest quality detection system can effectively perform real-time assessments of harvest quality during combine harvesting operations.

Abstract in Chinese

收获质量是衡量小麦机械化收获性能的关键指标之一。为了实现对小麦机收过程中收获质量的实时监控，本文集成了小麦收获质量在线检测系统，该系统能够对脱粒清选损失、破碎率、含杂率进行实时检测。为了评估小麦收获质量在线检测系统的效能，进行了田间试验。试验结果显示：人工检测收获机清选脱粒损失率的平均值分别为0.69%和0.75%，而小麦收获质量在线检测系统检测到的收获机清选脱粒损失率的平均值分别为0.52%和0.50%；人工检测收获机破碎率的平均值分别为0.67%和0.58%，系统检测到的收获机破碎率的平均值分别为0.49%和0.52%；人工检测收获机含杂率的平均值分别为0.81%和0.69%，系统检测到的含杂率的平均值分别为0.73%和0.67%。本研究开发的小麦收获质量在线检测系统能够有效地完成收割机小麦收获作业质量的检测任务。