Odor recognition method and device based on electronic nose and electronic nose system

Abstract

The invention relates to an odor recognition method and device based on an electronic nose and an electronic nose system. The odor recognition method based on the electronic nose comprises the following steps: obtaining detection data of a plurality of odor samples collected by the electronic nose system; decomposing the detection data of each odor sample, so as to obtain an adsorption mass matrixof each odor sample, an adsorption amount scaling matrix of odor molecules of each odor sample on each sensor in the electronic nose system and an odor molecule characteristic matrix; constructing anabstract odor factor diagram of each odor sample separately according to the adsorption mass matrix, adsorption amount scaling matrix and odor molecule characteristic matrix of each odor sample; calculating similarity between abstract odor factor diagrams of two odor samples; and recognizing whether two odor samples are the same odor sample or not according to the similarity between abstract odorfactor diagrams of two odor samples. The odor recognition method based on the electronic nose has the advantages of simple pretreatment, short detection period and low detection cost, and can realizehigh-accuracy identification of different odor samples with high similarity and complexity.

Description

technical field [0001] The invention relates to the technical field of electronic noses, in particular to an electronic nose-based odor recognition method, device and electronic nose system. Background technique [0002] Smell recognition is closely related to human life. Odor recognition is involved in food quality discrimination, industrial production, environmental monitoring, safety monitoring, and disease diagnosis. At present, the methods applied to the identification of complex odor samples mainly rely on gas chromatography analysis methods and GC-MS analysis techniques. However, these methods often require complex pretreatment steps when analyzing complex odor samples, and the sample analysis period is long, and the operation and maintenance costs of the instrument are high. Therefore, these methods have the disadvantages of low analysis efficiency and high analysis cost. [0003] The electronic nose system is a new type of odor analysis equipment developed rapidl...

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide an electronic nose-based odor identification method, device and electronic nose system for the technical problem of low accuracy of the existing electronic nose system in odor identification

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