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[主讲人: Victor C. M. Leung] [时间: 2010-11-09 14:20:00]
Recent advances in very-low-power wireless communications, including the development of ZigBee (IEEE 802.15.4) and Wibree (introduced by Nokia and recently adopted by the Bluetooth SIG as ultra low power Bluetooth) have stimulated great interest in the development and application of wireless technology in biomedical applications, including wireless body area sensor networks (WBASNs). A WBASN consists of multiple sensor nodes capable of sampling, processing, and communicating one or more vital signs (e.g., heart rate, brain activity, blood pressure, oxygen saturation) and/or environmental parameters (location, temperature, humidity, light) over extended periods. Typically, these sensors are placed strategically on the human body or hidden in users’ clothing to enable ubiquitous monitoring of the user and her environment. Low-cost wearable WBASNs that do not require precise close coupling with the human bodies are especially advantageous for widespread applications in fields as diverse as emergency medicine, long-term health care, athletic training, workplace safety, consumer electronics, secure authentication, and safe-guarding of uniformed personnel. Funded by the Canadian Natural Sciences and Engineering Research Council under the competitive Strategic Project Grant program, and in collaboration with colleagues in Carleton University, Neil Squire Society, Defence Research and Development Canada (DRDC) and several industry partners, a team of researchers at the University of British Columbia have embarked on a research project on WBASNs. The overall goal of this project is to contribute to the development of the channel models, protocol designs, security methods, cross-layer designs and sensor data processing techniques that will make WBASNs more secure, reliable, and effective and thereby make their widespread deployment practical and commercially viable. In this presentation, we shall review the progress of this project after two years. In particular, we shall present the design and implementation of a prototype wireless 3-pad electrocardiogram system. An overview of the wireless networking research activities at the University of British Columbia will also be presented.
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