Li Changzhi, Lin Jenshan, Xiao Yanming
Department of Electrical & Computer Engineering, University of Florida, Gainesville, FL 32611, USA.
Conf Proc IEEE Eng Med Biol Soc. 2006;2006:2235-8. doi: 10.1109/IEMBS.2006.260148.
A positive answer is given to the question intrigued by our previous work reported in EMBC 2005: whether it is possible for a non-contact physiological movement detector to detect vital signs from four sides of a human body. In addition to the proof from measured data, theoretical analysis confirms the surprising advantage of detection from the back of the body. Based on this observation, a non-contact system was set up to perform overnight monitoring of vital signs using low power radio waves. Measurement data is presented and analyzed. The challenges and key technologies that improved the performance of our system for overnight monitoring are discussed.
对于我们在2005年国际电子与生物医学工程会议(EMBC)上发表的前期工作所引发的问题,即非接触式生理运动探测器是否有可能从人体的四个侧面检测生命体征,给出了肯定的答案。除了实测数据的证明外,理论分析也证实了从人体背部进行检测具有惊人的优势。基于这一观察结果,搭建了一个非接触式系统,利用低功率无线电波对生命体征进行夜间监测。展示并分析了测量数据。讨论了提高我们夜间监测系统性能所面临的挑战和关键技术。