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http://dx.doi.org/10.9708/jksci.2014.19.11.033

Implementation of a Respiration Measurement System Based on a Nonrestraint Approach  

Cho, Seok-Hyang (Division of General Education, Pyeongtaek University)
Cho, Seung-Ho (Division of Computer and Media Information Engineering, Kangnam University)
Publication Information
Journal of the Korea Society of Computer and Information / v.19, no.11, 2014 , pp. 33-41 More about this Journal
Abstract
In this paper, we implemented a system to measure respiration rate with nonrestraint sensors comfortable for people to do their everyday life. The proposed system consists of a pad covered with a Piezoelectric sensor, a respiration measuring device able to send the signal data after amplifying and filtering the source signals to the viewer, a viewer providing sensor data visualization and implementing the respiration measuring algorithm. The algorithm is based on a breathing cycle with the local peak points extracted from threshold on sensor data. Respiration measurements on 3 subjects were performed by changing moving averages and thresholds. The proposed system showed less than 5% error rate when proper moving averages are N=50~60 and a range of thresholds is 800~1300. The system will contribute to preventing suffocation during sleep for infants and the elderly living alone.
Keywords
Respiration; Nonrestraint method; Piezoelectric sensor; Signal processing; u-healthcare;
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