Title :
Combining unobtrusive electrocardiography and ballistography for more accurate monitoring of sleep
Author :
Vehkaoja, Antti ; Peltokangas, Mikko ; Verho, Jarmo ; Lekkala, Jukka
Author_Institution :
Dept. of Autom. Sci. & Eng., Tampere Univ. of Technol., Tampere, Finland
Abstract :
We propose an unobtrusive bed integrated system for monitoring physiological parameters during sleep. Our system uses textile electrodes attached on the bed sheet for measuring multiple channels of electrocardiogram from which one at a time is selected for RR-interval detection and force sensors located under a bed post for detecting breathing and movements. The movement information is also used to assist in heart rate detection. We tested the system with six subjects in one hour recordings and achieved an average of 94 % detection coverage and 99 percentile absolute error of 2.86 ms for the RR-interval signal. Mean absolute error of the detected respiration cycle lengths was 0.24 seconds.
Keywords :
cardiology; computerised monitoring; electrocardiography; electrodes; force sensors; medical signal detection; sleep; RR-interval signal detection coverage; ballistography; bed post; bed sheet; breathing detection; force sensors; heart rate detection; mean absolute error; movement detection; movement information; multiple electrocardiogram channel measurement; physiological parameter monitoring; respiration cycle length detection; sleep monitoring; textile electrodes; unobtrusive bed integrated system; unobtrusive electrocardiography; Electrocardiography; Electrodes; Force sensors; Heart rate; Monitoring; Rail to rail inputs; Bed integrated ECG (EKG); Heart rate; Night-time monitoring; Respiration rate; Unobtrusive physiological measurement;
Conference_Titel :
Bioinformatics & Bioengineering (BIBE), 2012 IEEE 12th International Conference on
Conference_Location :
Larnaca
Print_ISBN :
978-1-4673-4357-2
DOI :
10.1109/BIBE.2012.6399674