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An ultra-low-power human body motion sensor using static electric field sensing (2012)
| Content Provider | CiteSeerX |
|---|---|
| Author | Cohn, Gabe Gupta, Sidhant Lee, Tien-Jui Morris, Dan Smith, Joshua R. Reynolds, Matthew S. Tan, Desney S. Patel, Shwetak N. |
| Description | Wearable sensor systems have been used in the ubiquitous computing community and elsewhere for applications such as activity and gesture recognition, health and wellness monitoring, and elder care. Although the power consump-tion of accelerometers has already been highly optimized, this work introduces a novel sensing approach which lowers the power requirement for motion sensing by orders of magnitude. We present an ultra-low-power method for pas-sively sensing body motion using static electric fields by measuring the voltage at any single location on the body. We present the feasibility of using this sensing approach to infer the amount and type of body motion anywhere on the body and demonstrate an ultra-low-power motion detector used to wake up more power-hungry sensors. The sensing hardware consumes only 3.3 µW, and wake-up detection is done using an additional 3.3 µW (6.6 µW total). Author Keywords Activity sensing, low-power sensing, electric field sensing |
| File Format | |
| Language | English |
| Publisher Date | 2012-01-01 |
| Publisher Institution | In Proceedings of the 2012 ACM Conference on Ubiquitous Computing, UbiComp ’12 |
| Access Restriction | Open |
| Subject Keyword | Power Consump-tion Power-hungry Sensor Body Motion Wearable Sensor System Single Location Wellness Monitoring Ultra-low-power Method Novel Sensing Approach Wake-up Detection Static Electric Field Gesture Recognition Author Keywords Activity Sensing Ultra-low-power Motion Detector Pas-sively Sensing Body Motion Electric Field Motion Sensing Power Requirement Ultra-low-power Human Body Motion Sensor |
| Content Type | Text |
| Resource Type | Article |
