Motion-based wake-up scheme for ambulatory monitoring in wireless body sensor networks.
Given that wearable sensors that are attached on patients for the purpose of continuous real-time medical monitoring typically need to remain operational for periods of up to 24 hours before a battery change or recharge, power preservation schemes play a critical role in minimizing any possible disruption to a patient's daily activities. In this paper, we propose a motion-based wake-up scheme, a feature which combines motion detection with existing power preservation schemes in order to achieve a balance between energy saving and data timeliness, particularly in critical situations. As a showcase, we have integrated this feature with a healthcare application and demonstrate the capability of the scheme to deal with critical events, e.g., when a patient falls down from the bed. This showcase affirms the effective uses of our proposed motion-based wake-up scheme.
Pek
Isaac
I
Institute for Infocomm Research, A*STAR, Singapore. ipek@i2r.a-star.edu.sg
Waluyo
Agustinus Borgy
AB
Yeoh
Wee-Soon
WS
Chen
Xiang
X
D000054:Acceleration; D000465:Algorithms; D003195:Computer Communication Networks / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D008838:Microcomputers; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D009038:Motion; D011381:Programming Languages; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation; D017216:Telemedicine / Q000295:instrumentation; D013686:Telemetry / Q000295:instrumentation*; D014159:Transducers