도플러 레이더와 에어 매트리스를 이용한무구속 방식의 신생아 감시 장치 설계
Design of Unconstrained Baby Monitoring System Based on a Doppler Radar and an Air Mattress
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Continuous monitoring of heart rates and respiratory rates for newborns or infants is very important sincethe abnormal breathing and heart problems can threaten the life of newborns or infants. A noncontact baby monitoringsystem based on a Doppler radar and an air mattress was designed. The Doppler radar was used to acquire respiratorysignals and the air mattress was employed to obtain heart rates. The performance of the designed system was evaluatedusing a commercialized infant simulator (SimbabyTM) and a respiration belt transducer was used to measurerespiration rates as a reference. Results for respiratory rates revealed that the correlation coefficients between IandQ-channel and the respiration belt were 0.84 and 0.91 and the mean ± standard deviations of errors between themwere 1.66 ± 1.92 (bpm) and 0.88 ± 1.65 (bpm). Heart rates showed that the correlation coefficient between air mattressand set value of the simulator was 0.73 and the mean ± standard deviation of errors between them was1.09 ± 3.45 (bpm). These results indicate that the designed system holds the potential as an effective monitoring toolfor continuous monitoring heart rates and respiratory rates of newborns or infants.
Abstract
Continuous monitoring of heart rates and respiratory rates for newborns or infants is very important sincethe abnormal breathing and heart problems can threaten the life of newborns or infants. A noncontact baby monitoringsystem based on a Doppler radar and an air mattress was designed. The Doppler radar was used to acquire respiratorysignals and the air mattress was employed to obtain heart rates. The performance of the designed system was evaluatedusing a commercialized infant simulator (SimbabyTM) and a respiration belt transducer was used to measurerespiration rates as a reference. Results for respiratory rates revealed that the correlation coefficients between IandQ-channel and the respiration belt were 0.84 and 0.91 and the mean ± standard deviations of errors between themwere 1.66 ± 1.92 (bpm) and 0.88 ± 1.65 (bpm). Heart rates showed that the correlation coefficient between air mattressand set value of the simulator was 0.73 and the mean ± standard deviation of errors between them was1.09 ± 3.45 (bpm). These results indicate that the designed system holds the potential as an effective monitoring toolfor continuous monitoring heart rates and respiratory rates of newborns or infants.
참고문헌 (14)
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