title: SleepSense: A Noncontact and Cost-Effective Sleep Monitoring System.
abstract: Quality of sleep is an important indicator of health and well being. Recent developments in the field of in-home sleep monitoring have the potential to enhance a person's sleeping experience and contribute to an overall sense of well being. Existing in-home sleep monitoring devices either fail to provide adequate sleep information or are obtrusive to use. To overcome these obstacles, a noncontact and cost-effective sleep monitoring system, named SleepSense, is proposed for continuous recognition of the sleep status, including on-bed movement, bed exit, and breathing section. SleepSense consists of three parts: a Doppler radar-based sensor, a robust automated radar demodulation module, and a sleep status recognition framework. Herein, several time-domain and frequency-domain features are extracted for the sleep recognition framework. A prototype of SleepSense is presented and evaluated using two sets of experiments. In the short-term controlled experiment, the SleepSense achieves an overall 95.1% accuracy rate in identifying various sleep status. In the 75-minute sleep study, SleepSense demonstrates wide usability in real life. The error rate for breathing rate extraction in this study is only 6.65%. These experimental results indicate that SleepSense is an effective and promising solution for in-home sleep monitoring.
authors.forename: Feng
authors.initials: F
authors.lastname: Lin
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhuang
authors.forename: Chen
authors.initials: C
authors.lastname: Song
authors.forename: Aosen
authors.initials: A
authors.lastname: Wang
authors.forename: Yiran
authors.initials: Y
authors.lastname: Li
authors.forename: Changzhan
authors.initials: C
authors.lastname: Gu
authors.forename: Changzhi
authors.initials: C
authors.lastname: Li
authors.forename: Wenyao
authors.initials: W
authors.lastname: Xu
mesh_terms: D006801:Humans; D009068:Movement; D017286:Polysomnography / Q000295:instrumentation*; D011825:Radar; D012119:Respiration; D056152:Respiratory Rate; D012890:Sleep