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Utveckling av ny teknik för hjärtpulsdetektion
KTH, School of Information and Communication Technology (ICT).
KTH, School of Information and Communication Technology (ICT).
2017 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Development of new heart pulse detection technology (English)
Abstract [en]

In this thesis we suggest a technique for detecting pulses by signal processing of a raw ECG signal registered from 4 electrodes located on the left upper arm. The signal processing is performed in Matlab and consists of normalization, lowpass filtering, highpass filtering, derivation, squaring and a moving average window to reduce interference. The technology is capable of extracting periods between heartbeats after an implemented detection algorithm. The thesis also includes reflections on the types of interferences that may affect an electrical development equipment and also methods of how major parts of the interference can be reduced by different shields. Before the technique is applied in a final product, further tests may need to be performed during the monitoring of a person's pulse. Finally, we believe that our development of pulse detection is the beginning of a new technology that in the future can save lives.

Abstract [sv]

I den här rapporten föreslår vi en teknik för att detektera pulser med hjälp av att signalbehandla en rå EKG-signal registrerad från 4 elektroder placerade på vänster överarm. En signalbehandling utförd i Matlab som bland annat består av normering, lågpassfiltrering, högpassfiltrering, derivering, kvadrering samt ett glidande medelvärdesfönster för att reducera störningar. Tekniken är kapabel till att utvinna tider mellan hjärtslag efter en implementerad detekteringsalgoritm. Rapporten innefattar även reflektioner kring vilka typer av störningar som kan påverka en elektrisk utvecklingsutrustning samt metoder för hur större delar av störningarna kan reduceras med hjälp av olika skärmningar. Innan tekniken appliceras i en slutlig produkt kan ytterligare tester behöva utföras under monitorering av en persons puls. Slutligen anser vi att våran utveckling av pulsdetektion är en början på en ny teknik för att kunna rädda liv.

Place, publisher, year, edition, pages
2017. , 71 p.
Series
TRITA-ICT-EX, 2017:56
Keyword [en]
Signal Processing, Medical Technology, Pulse Detection, ECG Registration, Atrial fibrillation, QRS-complex
Keyword [sv]
Signalbehandling, Medicinteknik, Pulsdetektion, EKG-registrering, Förmaksflimmer, QRS-komplex
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:kth:diva-211571OAI: oai:DiVA.org:kth-211571DiVA: diva2:1130134
External cooperation
Zenicor
Subject / course
Electronic- and Computer Systems
Educational program
Bachelor of Science in Engineering - Electronics and Computer Engineering
Supervisors
Examiners
Available from: 2017-08-08 Created: 2017-08-08 Last updated: 2017-08-08Bibliographically approved

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