To improve accuracy and convenience of sleep-staging system
a structure with desktop ECG harvest center and wireless ECG paste which integrates special ASIC is presented in this paper. The sleep-staging algorithm is based on six features which are derived from RRI and HRV of single channel ECG
and these features are fed to HMM as a classifier. In which
EEMD algorithm is used to standardize RRI sequence. To improve battery life of the ECG paste
low power design method on system level and circuit level are used. The test results show that the classification accuracy of sleep-staging system is 93.2% on an average. The ECG chip occupies only 1.6 mm on SMIC 0.18 μm process and average power consumption is only 1.3 mW
which means 70 h continuously work under a 100 mAh battery for the ECG pastes.
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references
Denver TEOFILO L. Sleep: A Comprehensive Handbook. [M], Denver: John Wiley % Sons, 2006.
TERZANO M, PARRINO L, Smerieri A, et al. A Walters. Atlas, rules, and recording techniques for the scoring of cyclic alternating pattern (CAP) in human sleep [J]. Sleep Med, 2001, 2(6):537-553. DOI: 537
BUYSSE D, REYNOLDSs C, MONK T, et al.The Pittsburgh sleep quality index: a new instrument for psychiatric practice and research [J]. Psychiatry Res, 1989, 28 (2):193-213. DOI: 193
Denver BENBADIS S. Sleep: A Comprehensive Handbook.[M], Denver:John Wiley % Sons, 2005.
HOBSON J. Sleep is of the brain, by the brain and for the brain [J]. Nature, 2005, 437(10):1254-1256. DOI: 1254
DWORAK M, WIATER A, AIFER D, et al. Increased slow wave sleep and reduced stage 2 sleep in children depending on exercise intensity [J]. Sleep Med., 2008, 9(3):266-272. DOI: 266
YOON H, HWANG SH, LEE Y J, et al. Slow-wave sleep estimation for healthy subjects and OSA patients using R-R intervals [J]. Biomedical and health informatics, 2018, 22(1):119-128. DOI: 119
IMTIAZ S, JIANG Z, RODRIGUEZ-VILLEGAS E. An ultralow power system on chip for automatic sleep staging [J]. IEEE J Sol StaCirc, 2017, 52(3): 822-833. DOI: 822
PARBHA A, TRIVEDI A, KUMAR A, et al. Automated system for obstructive sleep apnea detection using heart rate variability and respiratory rate variability [C]. International Conference on Advances in Computing, 2017: 1303-1307.
CHEN Y, ZHU X, CHEN W, et al. Automatic sleep staging based on ECG signals using hidden Markov models [C]. IEEE International Conference of EMBC, 2015: 530-533.
BANDS S, DINGES D. Behavioral and physiological consequences of sleep restriction [J] Sleep Med, 2007, 3(5): 519-528. DOI: 519
MENDEZ M, MATTEUCCI M, CERUTTI S, et al. Sleep staging classification based on HRV: time-variant analysis [C]. IEEE 31st Annual International conference on EMBS, 2009: 9-12.
CHEN Z, LIN M, LANE ND, et al. Unobtrusive sleep monitoring using smartphones [C]. Pervasive Computing Technologies for Healthcare, 2013: 145-152.