Non-Restorative Sleep
Fig. 1: Applied measuring set-up.
Fig. 2: IN-MONIT Prototype.
Fig. 3: Hardware for contactless measurements.
Fig. 4: Motion analysis.
Fig. 5: Hardware for EEG measurements.
Fig. 6: Principle of sensor fusion.
Contact persons
Project description
In western industrial nations, approximately 15 - 35% of the population suffer from light to heavy sleep disorders which are known to cause severe discomfort and even cardiovascular health risks. A significant number of those suffering from non- restorative sleep are not properly diagnosed; in the U.S. alone 10% of the roughly 10 - 20 million affected people do not receive medical attention.
Project goals
In order to facilitate reliable and broad screening as well as prevention using simple methods, the "Mobile Sleep Lab for Patients @Home" is developed. The main focus of this work comprises:
- Development of suitable hardware components
- Multivariate Signal-Analysis
- Artifact recognition, suppression and correction,
- Classification of sleep quality by means of vital parameters and electroencephalogram (EEG, brain waves)
| Fig 2 | Measurement of oxygen saturation, pulse, heart rate variability, respiration rate and differential blood pressure, classification and diagnosis of cardiovascular risks. |
| Fig 3 | Non-contact measurement of respiration volume, frequency and variability |
| Fig 4 | Motion analysis of the extremities |
| Fig 5 | Recording of brain waves (EEG), sleep stage classification |
| Fig 6 | Sensor-Fusion, signal (de-)correlation, data reduction |
Project partners
- Institute for High Frequency Technology at the RWTH Aachen University
- EnviteC Wismar GmbH
- CiS Institut für Mikrosensorik gGmbH
- Audia Akustik GmbH
Publications
- S. Vogel und P. Hagemann: A Portable Polygraphic System for Ambulant Sleep Analysis. Poster 2006 - 10th International Student Conference on Electrical Engineering, May 18, 2006, Prague, Czech Republic.
- S. Vogel, A. Seckerdieck, T. Penzel, H.F. Becker, S. Leonhardt: Entwicklung und Validierung eines portablen EEG Systems. Gemeinsame Jahrestagung der Deutschen, Österreichischen und Schweizerischen Gesellschaften für Biomedizinische Technik, Zürich, Schweiz, 06.-09.07.2006, im Druck.