Detekcija ljudskog pada korištenjem orijentacije u podatcima inercijskog senzora

undergraduate thesis

• Title (english): Human fall detection using orientation in inertial sensor records
• Author: Marko Kosmač
• Mentor: Ratko Magjarević (mentor)
• Committee member: Ratko Magjarević (predsjednik povjerenstva)
• Committee member: Davorin Ambruš (član povjerenstva)
• Committee member: Krunoslav Jurčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2023-06-30, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

U sklopu ovog rada istraženi su podatci dobiveni senzorom Shimmer3 postavljenim na 111 osoba. Osobe su kroz tri snimanja u prosječnom trajanju od pola minute sjele na tri različita sjedala, pa zatim kontrolirano pale na strunjaču. Razmatrani su snimljeni podatci akceleracije u smjeru triju koordinatnih osi. Cilj rada bio je ustanoviti mogu li se ti podatci iskoristiti kao dodatna značajka detektiranje pada. Podatci su provedeni kroz predobradu i algoritam za procjenu trenutka u kojem je došlo do pada. Točnost dobivenih rezultata iznosi 96.49% na temelju čega je zaključeno da se promjena smjera akceleracije može biti od pomoći kao značajka u detekciji pada.

Abstract (english)

This study investigated data obtained from a Shimmer3 sensor placed on 111 individuals. The individuals sat on three different chairs and then performed a controlled fall onto a mat. This was done three times by each person, each session lasting an average of half a minute. The most significant recorded data was the acceleration in the direction of three coordinate axes. Main point of this study was to determine whether this data could be used as an additional feature for fall detection. The data underwent preprocessing and an algorithm was used to estimate the exact moment of the fall for each data sample. Accuracy of the results obtained was 96.49%, leading to the conclusion that directional changes of acceleration can be reliably used as a feature in fall detection.

• Keywords: detekcija pada; inercijski senzor; komponente akceleracije; orijentacija; Shimmer3
• Keywords (english): fall detection; inertial sensor; acceleration components; orientation; Shimmer3
• Language: croatian
• URN:NBN: urn:nbn:hr:168:784916
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-07-13 10:12:45