Pressure Pulse Classification for Flow Disturbance Detection in Micro Diaphragm Pumps

T. Thalhofer, F. Heinrich, O. Hayden

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Micropumps have the potential to complement or even replace infusion pumps used in hospital and home care environments. For safe and reliable operation, error detection must be available for these devices. In this work we present a machine learning based approach that classifies pressure pulses created by a micropump into several operation states (normal operation, air-in-line, upstream- and downstream occlusion). An automated setup to generate these flow states and to automatically read and label the corresponding pressure pulse sensor data was built. Using this setup, a dataset consisting of 12.000 pressure pulses from five micropumps was recorded. Characteristic statistical features for the four flow states were extracted from this dataset using TSfresh. Using these statistical features, a decision tree model was trained. The model achieved a classification accuracy of 93%.

Original languageEnglish
Title of host publicationMikroSystemTechnik Kongress 2021
Subtitle of host publicationMikroelektronik, Mikrosystemtechnik und ihre Anwendungen - Innovative Produkte fur zukunftsfahige Markte, Proceedings
PublisherVDE VERLAG GMBH
Pages636-639
Number of pages4
ISBN (Electronic)9783800756575
StatePublished - 2021
EventMikroSystemTechnik Kongress 2021: Mikroelektronik, Mikrosystemtechnik und ihre Anwendungen - Innovative Produkte fur zukunftsfahige Markte - MikroSystemTechnik Congress 2021: Microelectronics, Microsystems Engineering and their Applications - Innovative Products for Future-Oriented Markets - Stuttgart-Ludwigsburg, Germany
Duration: 8 Nov 202110 Nov 2021

Publication series

NameMikroSystemTechnik Kongress 2021: Mikroelektronik, Mikrosystemtechnik und ihre Anwendungen - Innovative Produkte fur zukunftsfahige Markte, Proceedings

Conference

ConferenceMikroSystemTechnik Kongress 2021: Mikroelektronik, Mikrosystemtechnik und ihre Anwendungen - Innovative Produkte fur zukunftsfahige Markte - MikroSystemTechnik Congress 2021: Microelectronics, Microsystems Engineering and their Applications - Innovative Products for Future-Oriented Markets
Country/TerritoryGermany
CityStuttgart-Ludwigsburg
Period8/11/2110/11/21

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