Method and system for screening electronic nose sensor in tea grade identification

A screening method and sensor technology, applied in the direction of material electrochemical variables, etc., can solve the problems of low tea grade recognition rate and high computational complexity

Inactive Publication Date: 2016-10-12
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a screening method and system for electronic nose sensors in te

Method used

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  • Method and system for screening electronic nose sensor in tea grade identification
  • Method and system for screening electronic nose sensor in tea grade identification
  • Method and system for screening electronic nose sensor in tea grade identification

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Embodiment 1

[0051] see figure 1 As shown, a method for screening electronic nose sensors in tea grade identification provided by an embodiment of the present invention includes:

[0052] Step 101: Detect aroma components used to characterize tea leaves of different grades in the tea samples to be tested through the electronic nose, wherein the electronic nose includes: multiple sensors;

[0053] Step 102: According to the detection results, obtain the sample intra-class dispersion and sample inter-class dispersion corresponding to each sensor in the electronic nose;

[0054] Step 103: According to the obtained sample within-class dispersion and sample-to-sample dispersion corresponding to each sensor, determine the distinguishing performance value of each sensor for tea grades;

[0055] Step 104: Judging whether the performance value of each sensor in the electronic nose for distinguishing tea grades meets the predetermined distinguishing standard, and screening out the sensors in the el...

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Abstract

The invention provides a screening method and system of an electronic nose sensor in tea grade identification, which can improve the recognition rate of tea grades. The method includes: detecting the aroma components used to characterize tea leaves of different grades in the tea samples to be tested through the electronic nose; according to the detection results, obtaining the sample intra-class dispersion and the sample inter-class dispersion corresponding to each sensor in the electronic nose. degree; according to the sample class dispersion degree and sample class dispersion degree corresponding to each sensor obtained, determine the distinguishing performance value of each sensor to the tea grade; judge the effect of each sensor in the electronic nose on the tea grade Whether the distinguishing performance value of the electronic nose meets the predetermined distinguishing standard, and the sensors in the electronic nose meeting the predetermined distinguishing standard are screened out. The invention is applicable to the technical field of food intelligent sensory analysis.

Description

technical field [0001] The invention relates to the technical field of food intelligent sensory analysis, in particular to a method and system for screening electronic nose sensors in tea grade identification. Background technique [0002] my country is a big country in tea production and trade, and the substantial increase in tea material wealth has provided a solid foundation for the development of Chinese tea culture. However, due to the lack of a mature regulatory system, the quality of commodity tea in the market is chaotic, and the phenomenon of shoddy tea often occurs, which has a negative impact on tea trade, consumer rights and the development of the entire tea culture. . [0003] Food sensory science is a science that studies the structure, evolution and measurement of food sensory quality attributes. For a long time, the sensory testing of tea grades has basically been realized by means of artificial sensory evaluation. However, the artificial sensory evaluatio...

Claims

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Application Information

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IPC IPC(8): G01N27/26
CPCG01N27/26
Inventor 支瑞聪张德政
Owner UNIV OF SCI & TECH BEIJING
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