基于多通道光谱传感器的仪器作为Agtron的替代品,用于使用经典的化学测量和机器学习方法预测咖啡烤度
Diang Sagita1, Sutrisno Suro Mardjan2, Slamet Widodo2
1Agricultural Engineering Science, Graduate School, IPB University, Bogor 16680, Indonesia; Research Center for Equipment Manufacturing Technology, National Research and Innovation Agency, South Tangerang 15314, Indonesia.
一个新的Agtron检测系统使用低成本的光谱传感器和化学测量方法来创建一个便携式咖啡烤机分析仪. 这个现场准备的设备准确地测量了阿拉伯咖啡,罗布斯塔咖啡,利比里卡咖啡和埃克塞尔萨咖啡的烤咖啡水平.
科学领域:
- 食品科学与技术 食品科学与技术
- 分析化学 分析化学
- 仪器仪表工程 仪器仪表工程
背景情况:
- 准确测量咖啡烤度对于质量控制至关重要.
- 现有的Agtron检测系统可能很昂贵,缺乏便携性.
- 频谱分析与化学测量相结合,为咖啡分析提供了一个有前途的替代方案.
研究的目的:
- 开发一个低成本,便携式,现场准备的Agtron检测系统.
- 评估古典和现代化学回归方法对咖啡烤分析的性能.
- 在嵌入式系统中实现选择的模型进行实时测量.
主要方法:
- 使用了一种低成本的多通道光谱传感器 (410-940 nm).
- 从各种烤度的阿拉伯咖啡和罗布斯塔咖啡样本收集了光谱数据.
- 应用定量化疗法,包括多重线性回归 (MLR),部分最小平方回归 (PLSR),随机森林 (RF),支持向量回归 (SVR) 和人工神经网络 (ANN).
主要成果:
- 所有化学测量模型都实现了高预测准确性 (R2验证:0.983-0.994,RMSEV<4.7,RPD>7.7).
- 即使在减少波长选择 (50%子集) 时,也保持了准确的预测.
- 嵌入式系统在新的咖啡类型 (Liberica,Excelsa) 上显示出可靠的性能,准确度高 (R2:0.965-0.967,RMSE<3).
结论:
- 一个新的,负担得起的,便携式的Agtron检测系统被成功开发出来.
- 该系统基于光谱传感和化学测量,提供准确可靠的咖啡烤度测量.
- 这项技术使不同咖啡品种的现场准备质量控制成为可能.
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