In this study, we developed a feasible structure of a textile-based inductive sensor using a machine embroidery method, and applied it to a non-contact type vital sign sensing device based on the principle of magnetic-induced conductivity. The mechanical heart activity signals acquired through the i...
In this study, we developed a feasible structure of a textile-based inductive sensor using a machine embroidery method, and applied it to a non-contact type vital sign sensing device based on the principle of magnetic-induced conductivity. The mechanical heart activity signals acquired through the inductive sensor embroidered with conductive textile on fabric were compared with the Lead II ECG signals and with respiration signals, which were simultaneously measured in every case with five subjects. The analysis result showed that the locations of the R-peak in the ECG signal were highly associated with sharp peaks in the signals obtained through the textile-based inductive sensor (r=0.9681). Based on the results, we determined the feasibility of the developed textile-based inductive sensor as a measurement device for the heart rate and respiration characteristics.
In this study, we developed a feasible structure of a textile-based inductive sensor using a machine embroidery method, and applied it to a non-contact type vital sign sensing device based on the principle of magnetic-induced conductivity. The mechanical heart activity signals acquired through the inductive sensor embroidered with conductive textile on fabric were compared with the Lead II ECG signals and with respiration signals, which were simultaneously measured in every case with five subjects. The analysis result showed that the locations of the R-peak in the ECG signal were highly associated with sharp peaks in the signals obtained through the textile-based inductive sensor (r=0.9681). Based on the results, we determined the feasibility of the developed textile-based inductive sensor as a measurement device for the heart rate and respiration characteristics.
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제안 방법
As mentioned previously, this is a preliminary study which sought to examine the feasibility of the textile-based inductive sensor for the measurement of the vital signs. The result of this study is expected to suggest some guidelines for further studies which adopt textile-based inductive sensors for vital sign measurements.
The textile-based inductive sensor developed for this work, was attached onto the surface of the shirt the subject was wearing, over the left chest. In order to check whether the magnetic induction principle was applied, the heart activity signals with the proposed textile based inductive sensor were acquired and compared with the signals from a standard ECG signal (lead II) and respiration signals (Biopac System. MP150 MODEL RSPEC-R Wireless Trans metre), which were simultaneously measured in each subject.
In this study, we aim to examine preliminarily the feasibility of a noncontact sensor which use a conductive textile material for the measurement of vital signs and, whose functions work on the basis of the magnetic-induced conductivity sensing principle.
데이터처리
In order to check the correlation between the respiration signals and the enveloped signals from the textile inductive sensor in this study, a correlation coefficient (r=0.8526) and a regression equation were derived (Fig. 10). On the basis of the relationship above, we hold that the peaks in the signals from the textile inductive sensor indicate its respiratory effects.
이론/모형
The magnetic field simulation was performed using the COMSOL Multiphysics (COMSOL AB, U.S.A), Magnetic field model. The electromagnetic characteristics, i.
후속연구
As mentioned previously, this is a preliminary study which sought to examine the feasibility of the textile-based inductive sensor for the measurement of the vital signs. The result of this study is expected to suggest some guidelines for further studies which adopt textile-based inductive sensors for vital sign measurements.
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