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Biosensor Networks

NASA Space Communications. Biosensor Networks. Principal Investigators: Frank Merat, Wen H. Ko, Darrin Young Case Western Reserve University. The goal of this project is to develop a test platform for biomedical monitoring using COTS components and state-of-the-art communications concepts.

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Biosensor Networks

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  1. NASA SpaceCommunications Biosensor Networks Principal Investigators: Frank Merat, Wen H. Ko, Darrin Young Case Western Reserve University

  2. The goal of this project is to develop a test platform for biomedical monitoring using COTS components and state-of-the-art communications concepts. Biosensor Networks • Project Overview Biomonitoring Network Body drawing from Fundamentals of Bioelectrical Impedance Analysis, Rudolph J. Liedtke, RJL Systems, February 1998.

  3. 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. Biosensor Networks • Relevance “A Lightweight Ambulatory Physiological Monitoring System,” NASA Tech Briefs, January 2001.

  4. 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. Biosensor Networks • Impact Wireless Biosensor Network

  5. Biosensor Networks RF Phantom Feasibility Experiment Body drawing from Fundamentals of Bioelectrical Impedance Analysis, Rudolph J. Liedtke, RJL Systems, February 1998.

  6. Biosensor Networks • Characterize human body as rf communications channel 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. 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. 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.

  7. Biosensor Networks • Prototype sensor node Bare PC board for prototype Typical rectangular center fed patch antenna used for testing. “early” power for prototype Antenna board for prototype Prototype sensor node with integrated antenna and D-socket for programming

  8. Biosensor Networks • Propagation modeling Transmission Line Model of Antenna/Human Circuit using experimentally measured antenna parameters and published values for the electrical parameters of the human body Simulation of Transmission Line Model for 0.6 Meters Antenna Separation

  9. [1] M. Dummeruth. Wireless Wearable Health Monitoring System. M.S. Thesis, Case Western Reserve University, August 2002. (Advisor: F. Merat). Biosensor Networks • Papers and Awards

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