Biosensor Networks概要1.ppt

Biosensor Networks Principal Investigators: Frank Merat, Wen H. Ko, Darrin Young Case Western Reserve University Biosensor Networks Project Overview Biosensor Networks Relevance Biosensor Networks Impact Biosensor Networks Biosensor Networks Characterize human body as rf communications channel Biosensor Networks Prototype sensor node Biosensor Networks Propagation modeling Biosensor Networks Papers and Awards NASA SpaceCommunications The goal of this project is to develop a test platform for biomedical monitoring using COTS components and state-of-the-art communications concepts. Body drawing from Fundamentals of Bioelectrical Impedance Analysis, Rudolph J. Liedtke, RJL Systems, February 1998. Biomonitoring Network This technology has applications for continuous health monitoring of humans in space and for long duration space experiments involving humans and/or animals. Any wireless solution should interface with existing and future proximity networks. “A Lightweight Ambulatory Physiological Monitoring System,” NASA Tech Briefs, January 2001. The major impact of this technology is upon manned missions, e.g., space station and shuttle missions . Removal of wires and other encumbrances would improve astronaut freedom of movement and increase the system reliability. Wireless Biosensor Network Feasibility Experiment Body drawing from Fundamentals of Bioelectrical Impedance Analysis, Rudolph J. Liedtke, RJL Systems, February 1998. RF Phantom Received Power Through the Body (underside of forearm with 30 cm separation). Antenna dimensions: L =39 mm, W = 42 mm, and h = 0.062” on FR-4 substrate. Received Power at 50 cm separation. Transmitter antenna: L = 54 mm, W = 48 mm, h = 0.062”; receiver antenna L = 26 mm, W = 38 mm, h = 0.062”, both on FR-4 substrate. Geometry of Basic Rectangular Patch Antenna Received Power at 1 m separation. Antenna dimensions are L = 41 mm, W = 38 mm, and h = 0.062” on FR-4 substrate. Typical rectangular center fed patch antenna used for