Noninvasive Life Signal Detecting Systems and Their Analyses

  • Park, Jung-Min (School of Engineering, Information and Communication University) ;
  • Park, Dong-Hyuk (School of Engineering, Information and Communication University) ;
  • Park, Seong-Ook (School of Engineering, Information and Communication University)
  • Published : 2003.05.01

Abstract

Wireless life signal detecting system is implemented with using the mechanism of Doppler Effect. This system can measure the respiration and heart rates with the periodic movement of skin and muscle near the heart. The system is consisted of antenna, RF transmitter, receiver, and display part. We did use two operating frequencies at 1.9 ㎓ and 10 ㎓. Firstly, the link budget about detecting system is analyzed and the signal detected from the system is compared with electrocardiogram(ECG) of monitor which is using for patient monitoring in hospital. Secondly, the detection of vital sign is also performed according to the different distances, and including behind the wall.

Keywords

References

  1. Proc. of IEEE v.63 Non-invasive microwave measurement of respirathion J.C.Lin https://doi.org/10.1109/PROC.1975.9992
  2. IEEE Transactions Microwave Theory and Technique v.27 Microwave apexcardiography J.C.Lin;J.Kiernicki;M.Kiernichi;P.B.Wollschaeger https://doi.org/10.1109/TMTT.1979.1129682
  3. Microwave Engineering(2nd edition) David M.Pozar
  4. IEEE MTT-S International v.1 A microwave radio for Doppler radar sensing of vital signs A.Droitcour;V.Lubecke;Lin Jenshan;O.Boric-Lubecke
  5. Phys. Med. Biol. v.41 The dielectric properties of biological tissues C.Gabriel;S.Gabriel;R.W.Lau https://doi.org/10.1088/0031-9155/41/11/001
  6. Electromagnetic interaction with biological systems J.C.Lin
  7. Medical & Biological Engineering & Computing v.25 Microprocessor-based cardiopulmonary rate monitor K.H.Chan;J.C.Lin https://doi.org/10.1007/BF02442818