White spirit identification method based on fluorescence characteristic parameter Euclidean distance

A technology of characteristic parameters and Euclidean distance, which is applied in the field of liquor identification, can solve the problems of chaotic vintage wine market, mixed pseudo-years, large randomness, etc., and achieve the effect of maintaining market order, clear hierarchy, and clear structure

Active Publication Date: 2011-09-14
JIANGNAN UNIV
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Problems solved by technology

However, since the country has not promulgated technical standards for vintage liquor, th

Method used

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  • White spirit identification method based on fluorescence characteristic parameter Euclidean distance
  • White spirit identification method based on fluorescence characteristic parameter Euclidean distance
  • White spirit identification method based on fluorescence characteristic parameter Euclidean distance

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Experimental program
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Embodiment 1

[0045] The work process of each module is explained by taking the identification of the variety of Mengjiu (referred to as Mengjiu) of Yanghe blue classic series as an example.

[0046] The working process of the storage module, firstly measure the fluorescence spectrum of Mengjiu, and excite once every 5nm within the excitation wavelength range of 200nm to 500nm, and obtain 61 two-dimensional fluorescence spectrum diagrams, and then according to the emission wavelength as the x-axis, the excitation wavelength as the y-axis and The fluorescence intensity is the z-axis to synthesize three-dimensional matrix data, so that the three-dimensional equiangular and contour fluorescence spectrum diagram of Mengjiu can be obtained, and therefore the reference fluorescence characteristic parameters can be extracted as the number of fluorescence peaks is 2, and the peak wavelength of the main fluorescence peak 449nm, the optimal excitation wavelength is 365nm, and the two-dimensional emiss...

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Abstract

The invention relates to a white spirit identification method based on a fluorescence characteristic parameter Euclidean distance, which comprises the following steps: a. storing the brand, odor type, vintage, fluorescence characteristic parameters, three-dimensional equal angle and contour fluorescence spectrum of each reference white spirit to a reference database; b. measuring the fluorescence spectrum of the white spirit to be identified and extracting the fluorescence characteristic parameters of the white spirit to be identified; c. inquiring and selecting the basic information and fluorescence characteristic parameters of all reference white spirits which have the same fluorescence peak number with the white spirit to be identified; d. solving the Euclidean distance of the fluorescence characteristic parameters of the white spirit to be identified and the fluorescence characteristic parameters of all the reference white spirits; e. comparing the obtained Euclidean distance with the set threshold and computing to obtain the similarity of the white spirit to be identified and the corresponding reference white spirit; and f. outputting the variety and vintage of the white spirit to be identified and the similarity with the corresponding reference white spirit. The white spirit identification method has the advantages of convenience in process operation, high identification accuracy and wide application range and is safe and reliable.

Description

technical field [0001] The invention relates to a liquor identification method, in particular to a liquor identification method based on the fluorescence characteristic parameter Euclidean distance, and belongs to the technical field of liquor identification. Background technique [0002] In my country, liquor has a huge consumer market and a large number of consumer groups, and there are various levels of consumption. Fake and shoddy liquor incidents occur from time to time. Fake liquor and toxic liquor blended with edible alcohol or even industrial alcohol are still commonly reported. The resulting food Safety accidents seriously threaten people's health and lives, and also damage the reputation of Chinese liquor. In the prior art, the quality of wine can only be appraised by professionals with many years of experience and according to the sense organs. This kind of liquor identification technology has the problems of low efficiency, high identification cost, and the accur...

Claims

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Application Information

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IPC IPC(8): G01N21/64
Inventor 陈国庆朱拓史院平
Owner JIANGNAN UNIV
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