NDLI: Accelerometer based real-time activity analysis on a microcontroller

Content Provider	IEEE Xplore Digital Library
Author	Czabke, A. Marsch, S. Lueth, T.C.
Copyright Year	2011
Description	Author affiliation: Department of Micro Technology and Medical Device Technology, Technische Universitaet Muenchen, Munich, Germany (Czabke, A.; Marsch, S.; Lueth, T.C.)
Abstract	In this article we present a new algorithm implemented on a microcontroller for the classification of human physical activity based on a triaxial accelerometer. In terms of long term monitoring of activity patterns, it is important to keep the amount of data as small as possible and to use efficient data processing. Hence the aim of this work was to provide an algorithm that classifies the activities "resting", "walking", "running" and "unknown activity" in real-time. Using this approach memory intensive storing of raw data becomes unnecessary. Whenever the state of activity changes, a unix time stamp and the new state of activity, as well as the number of steps taken during the last activity period are stored to an external flash memory. Unlike most accelerometer based approaches this one does not depend on a certain positioning of the sensor and for the classification algorithm no set of training data is needed. The algorithm runs on the developed device Motionlogger which has the size of a key fob and can be worn unobtrusively in a pocket or handbag. The testing of the algorithm with 10 subjects wearing the Motionlogger in their pockets resulted in an average accuracy higher than 90%.
Starting Page	40
Ending Page	46
File Size	909290
Page Count	7
File Format	PDF
ISBN	9781612847672
e-ISBN	9781936968152
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-23
Publisher Place	Ireland
Access Restriction	Subscribed
Rights Holder	ICST
Subject Keyword	Legged locomotion Accelerometers Accuracy Microcontrollers activity classification human activity recognition Accelerometer Classification algorithms Acceleration pervasive computing Monitoring physical activity monitoring
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in