Cloud traditional Chinese medicine quality detection system of multi-wavelength LED fluorescence spectrum and method

A fluorescence spectrum, quality detection technology, applied in the field of analysis and inspection instruments, optical sensing, can solve the problems of complex pretreatment process, to achieve the effect of expanding the scope of application

Inactive Publication Date: 2014-01-01
何赛灵
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  • Claims
  • Application Information

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Problems solved by technology

However, these methods have defects, or require a more complicated pretreatment process, or require sp

Method used

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  • Cloud traditional Chinese medicine quality detection system of multi-wavelength LED fluorescence spectrum and method
  • Cloud traditional Chinese medicine quality detection system of multi-wavelength LED fluorescence spectrum and method
  • Cloud traditional Chinese medicine quality detection system of multi-wavelength LED fluorescence spectrum and method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Example 1: Classification of four coffee samples

[0039] Coffee samples: Four different types of coffee beans were purchased on the market and ground into powder samples. They are Brazilian Coffee, Mandheling Coffee, Bluemoutain Coffee and Jamaican Coffee.

[0040] 1. Collect the fluorescence spectra of coffee samples induced by LED (400nm).

[0041] After the fluorescence induced by the LED was passed through a 450 nm long-pass filter, eight sets of spectral data were collected with a spectrometer (Ocean Optics USB2000) for each coffee sample, and eight sets of background signals were simultaneously measured. A total of 32 sets of spectral data were obtained by removing the background signal. Each group was normalized separately and then averaged and smoothed by type to obtain as follows: Figure 5 Normalized fluorescence spectra of the four coffees shown.

[0042] 2. Perform principal component analysis on the fluorescence spectrum data.

[0043] Principal compon...

Example Embodiment

[0061] Example 2: Classification of nine types of West Lake Longjing tea

[0062] Tea samples: Nine grades of West Lake Longjing were rated as 1, 2, 3, 4, 5, 6, 7, 8, and 9 in order from poor to good.

[0063] 1. Perform spectral acquisition and principal component analysis as in steps 1 and 2 in Example 1.

[0064] Y k＝1,2...N,k≠i;1...M =Φ k＝1,2...N,k≠i;0...tr θ 0...tr;1...M (1)

[0065] Φ k , j = 1 j = 0 ; U k , j j = 1,2 . . . ...

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Abstract

The invention relates to a cloud traditional Chinese medicine quality detection system of a multi-wavelength LED (light emitting diode) fluorescence spectrum and a method. The system is composed of a detecting terminal, a data acquisition and control system, and a cloud server for data processing. The detecting terminal acquires the fluorescence spectrum signal of a traditional Chinese medicine, the data acquisition and control system controls the detection process, and the cloud server performs principal component analysis and quality factor analysis on the traditional Chinese medicine, and generates traditional Chinese medicine quality information. The detection system and the method provided by the invention are nondestructive and accurate detection based on a fluorescence spectrum, the cost is low, and the detection efficiency is high.

Description

technical field [0001] The invention relates to a detection system based on multi-wavelength light emitting diode (Light Emitting Diode, LED) induced fluorescence spectrum and cloud computing, which can realize the quality detection of different traditional Chinese medicines, and belongs to the technical field of optical sensing and analytical testing instruments. Background technique [0002] Traditional Chinese medicine is a unique medicine of traditional Chinese medicine. It can be divided into Chinese patent medicine and Chinese medicinal materials according to the processing technology. It is the crystallization of medical wisdom accumulated by the Chinese working people in fighting against diseases for thousands of years. Even in the contemporary era when western medicine is prevalent, rural and urban residents in China still have a great dependence on and demand for traditional Chinese medicine. Statistics show that more than 80% of urban residents in my country have ...

Claims

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Application Information

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IPC IPC(8): G01N21/64
Inventor 何赛灵董泳江洪学智
Owner 何赛灵
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