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Data-driven Dynamic Baseline Calibration Method for Gas Sensors
KTH, School of Electrical Engineering and Computer Science (EECS).
2021 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Datadriven Dynamisk Baslinjekalibreringsmetod för Gassensorer (Swedish)
Abstract [en]

Automatic Baseline Correction is the state-of-the-art calibration method of non-dispersive infrared CO2 sensing, which is the standard CO2 gas monitoring method. In this thesis, we improve it by introducing the dynamic baseline based on environmental data. The 96 data sets from 48 atmospheric stations verify the characteristics of the annual growth trend and seasonality of the baseline model. In order to improve the accuracy of the calibration, the k-means clustering method is used to identify different types of baselines. Then the localized dynamic baseline model is predicted by using the location information of the stations only, which provides an executable calibration implementation for dynamic baseline calibration without relying on historical CO2 data. 

Abstract [sv]

Automatisk baslinjekorrigering är den senaste kalibreringsmetoden för icke-dispersiv infraröd CO2 avkänning, vilket är standard CO2 gasövervakningsmetod. I denna avhandling förbättrar vi den genom att introducera den dynamiska baslinjen baserat på miljödata. De 96 datamängderna från 48 atmosfärstationer bekräftar egenskaperna för den årliga tillväxttrenden och säsongsmässigheten hos basmodellen. För att förbättra kalibreringens noggrannhet används k-medelklusteringsmetoden för att identifiera olika typer av baslinjer. Därefter förutses den lokaliserade dynamiska baslinjemodellen med endast platsinformationen för stationerna, som ger en körbar kalibreringsimplementering för dynamisk baslinjekalibrering utan att förlita sig på historisk CO2 data.

Place, publisher, year, edition, pages
2021. , p. 60
Series
TRITA-EECS-EX ; 2021:839
Keywords [en]
CO2 gas sensing, drift, dynamic baseline calibration, time series analysis, data-driven modeling, clustering, classification
Keywords [sv]
CO2 gasavkänning, drift, dynamisk baslinjekalibrering, tidsserieanalys, datadriven modellering, kluster, klassificering
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-307413OAI: oai:DiVA.org:kth-307413DiVA, id: diva2:1631713
Educational program
Master of Science - Information and Network Engineering
Supervisors
Examiners
Available from: 2022-01-26 Created: 2022-01-25 Last updated: 2022-06-25Bibliographically approved

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Electrical Engineering, Electronic Engineering, Information Engineering

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • asciidoc
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