Robotic smart house to assist people with movement disabilities
Autonomous Robots
Detection of movement in bed using unobtrusive load cell sensors
IEEE Transactions on Information Technology in Biomedicine - Special section on affective and pervasive computing for healthcare
Unobtrusive sleep posture detection for elder-care in smart home
ICOST'10 Proceedings of the Aging friendly technology for health and independence, and 8th international conference on Smart homes and health telematics
Towards non-intrusive sleep pattern recognition in elder assistive environment
UIC'10 Proceedings of the 7th international conference on Ubiquitous intelligence and computing
Journal of Ambient Intelligence and Smart Environments
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More than 50 million people in the U.S. suffer from chronic sleep disorders, including snoring, bruxism, restless legs syndrome, and obstructive sleep apnea. Clinical diagnosis of severe cases often requires expensive, hospital-based polysomnography testing, while less severe cases may benefit from lower-cost in-home sensor systems to collect physiological data over multiple nights. Remedies for sleep disorders, depending on the diagnosis, range from life style modification and medication prescription to throat surgery. There is a need for unobtrusive, in-bed sensing systems as well as robotic devices to alleviate certain sleep disorder symptoms. Two companion devices are presented. The SleepSmart device is a multi-sensor mattress pad controlled by software to detect heart rate, breathing rate, body orientation and index of restlessness. A spectral analysis module is combined with an event detection module to accumulate nightly reports, signal alarms when appropriate and, in future iterations, modify ambient conditions in the bedroom. A companion project has developed Morpheus, a mattress actuation system to encourage a person to roll over in bed to alleviate snoring based on acoustic sensor data analysis. The combination of the two systems is expected to lead to novel, in-home consumer devices to aid persons affected by mild forms of sleep disorders.