鲜切果品新鲜度可见/近红外快速检测装置设计与实验
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

广西科技重大专项经费(桂科AA18118037)、国家自然科学基金项目(31501219)、中国农业大学研究生实践教学基地建设项目(ZYXW037)、中国农业大学研究生课程建设项目(HJ2019029、YW2019018)和2018年度国家级创新训练项目(201810019132)


Design of Freshness Detection Device for Fresh-cut Fruit Using Visible/Nearinfrared Spectroscopy
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为了适应日益增长的鲜切果品消费需求,基于光谱分析技术和传感器技术,集成微型光谱仪、质量传感器、照度计和树莓派显示屏等电子元器件,设计了一套鲜切果品新鲜度可见光/近红外快速检测装置。硬件系统包括数据采集模块、光源模块、结果输出显示模块和控制器模块,软件实现处理数据、调用分级模型和反馈分级结果等功能。以鲜切苹果为例,采集24个红富士苹果样本在400~820nm波段的光谱反射率,并在室温下分别于0~2h、2.5~8h和8.5~30h 3个时间段,对每一个待测样品进行4组光谱数据测量,共获取288个原始样本数据。以切开时长2h为分界线,将苹果样品分为2个等级。利用15点的S-G平滑卷积对反射光谱数据进行平滑处理后,使用核函数为高斯核函数(RBF)的支持向量机建立苹果新鲜度可见/近红外光谱检测分级模型,预测集准确率可达86.81%。该鲜切果品新鲜度可见/近红外快速检测装置可为果品新鲜度或切后存放时长的快速无损检测提供方法与技术支持。

    Abstract:

    The consumption on the freshcut fruit is growing significantly, in order to satisfy the requirement of the consumption with high quality and accuracy quantity, a freshness detection device for freshcut fruit was developed using visible/nearinfrared spectroscopy. The device was designed based on spectral analysis and sensor technology, which was integrated electronic components, including micro spectrometer, gravity sensor, illuminance meter and raspberry pie display. It was operated with hardware and software system, in which the hardware system included a data acquisition module, a light source module, a result output displays module, and a controller module. The software implements functions such as processing data, invoking a hierarchical model, and feedback grading results. Taking freshcut apples as an example, the spectral reflectance of 400~820nm bands was collected from 24 red Fuji apple samples, which were in the range of 0~2h, 2.5~8h and 8.5~30h, respectively. The samples were measured for four sets of spectral data, and a total of 288 raw sample data were obtained. The apples were divided into two grades in a cutoff time of 2h. After processing the reflected spectral data onto 15 points of S-G smooth convolution, the kernel function was used as the support vector machine of Gaussian kernel function (RBF) to establish the apple freshness visibility/near infrared spectrum detection hierarchical model. The accuracy of prediction set was 86.81%. The freshness detection device for freshcut fruit using visible/nearinfrared spectroscopy could provide a technical support for the freshness identification nondestructively and rapidly during the storage after cutting.

    参考文献
    相似文献
    引证文献
引用本文

孙红,梁媛媛,田男,吴童,李民赞,唐芳玉.鲜切果品新鲜度可见/近红外快速检测装置设计与实验[J].农业机械学报,2019,50(Supp):393-398.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-04-20
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2019-07-10
  • 出版日期: 2019-07-10