4.6 Article

Indoor Emission Sources Detection by Pollutants Interaction Analysis

期刊

APPLIED SCIENCES-BASEL
卷 11, 期 16, 页码 -

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MDPI
DOI: 10.3390/app11167542

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indoor air quality; feature extraction; pollutant interaction; emission source detection; emission events

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This study uses correlation coefficients technique to detect emission sources in indoor environments, considering secondary pollution and calculating intra pollutants correlation coefficients. Experiments successfully identify seven major indoor emission sources and improve detection accuracy compared to traditional methods.
This study employs the correlation coefficients technique to support emission sources detection for indoor environments. Unlike existing methods analyzing merely primary pollution, we consider alternatively the secondary pollution (i.e., chemical reactions between pollutants in addition to pollutant level), and calculate intra pollutants correlation coefficients for characterizing and distinguishing emission events. Extensive experiments show that seven major indoor emission sources are identified by the proposed method, including (1) frying canola oil on electric hob, (2) frying olive oil on an electric hob, (3) frying olive oil on a gas hob, (4) spray of household pesticide, (5) lighting a cigarette and allowing it to smoulder, (6) no activities, and (7) venting session. Furthermore, our method improves the detection accuracy by a support vector machine compared to without data filtering and applying typical feature extraction methods such as PCA and LDA.

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