Respiratory Rate Estimation by Using ECG, Impedance, and Motion Sensing in Smart Clothing

@article{Shen2017RespiratoryRE,
  title={Respiratory Rate Estimation by Using ECG, Impedance, and Motion Sensing in Smart Clothing},
  author={Chien-Lung Shen and Tzu-Hao Huang and Po-Chun Hsu and Ya-Chi Ko and Fen-Ling Chen and Wei-Chun Wang and Tsair Kao and Chia-Tai Chan},
  journal={Journal of Medical and Biological Engineering},
  year={2017},
  volume={37},
  pages={826 - 842}
}
The needs for light-weight and soft smart clothing in homecare have been rising since the past decade. Many smart textile sensors have been developed and applied to automatic physiological and user-centered environmental status recognition. In the present study, we propose wearable multi-sensor smart clothing for homecare monitoring based on an economic fabric electrode with high elasticity and low resistance. The wearable smart clothing integrated with heterogeneous sensors is capable to… 
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References

SHOWING 1-10 OF 40 REFERENCES
Automatic detection of respiratory rate from electrocardiogram, respiration induced plethysmography and 3D acceleration signals
TLDR
Three kinds of signals were mixed to extract respiratory rate, i.e., respiration inductive plethysmography (RIP), 3D-acceleration and ECG, indicating that the method significantly improves the accuracy and reliability over a dynamic range of respiration rate.
Estimation of respiration rate from three-dimensional acceleration data based on body sensor network.
TLDR
An adaptive band-pass filtering method combined with principal component analysis to derive the respiratory rate from three-dimensional acceleration data, using a body sensor network platform previously developed by us, and suggests that this method was capable of offering dynamic respiration rate estimation during various body activities.
Ambulatory respiratory rate detection using ECG and a triaxial accelerometer
TLDR
An algorithm with low computational complexity for combining multiple respiratory measurements to estimate breathing rate from an unobtrusive chest patch sensor is described.
Wireless Sensor-Based Smart-Clothing Platform for ECG Monitoring
TLDR
The results demonstrate that the signal-to-noise ratio (SNR) of the smart clothes exceeds 37 dB, which is within the “very good signal” interval, and power-saving transmission is reduced by nearly 1980 times the power consumption in the best-case analysis.
Design and Implementation of Sensing Shirt for Ambulatory Cardiopulmonary Monitoring
TLDR
Basic performance tests demonstrate that prototypes of this system can capture ECU RC and AB respiration, and PPG signals effectively, and extract parameters such as HR. breathing rate.
Respiratory Rate and Flow Waveform Estimation from Tri-axial Accelerometer Data
TLDR
A method based on tri-axial accelerometer data from a wireless sensor device, which tracks the axis of rotation and obtains angular rates of breathing motion is demonstrated, which is validated against gyroscope measurements and shows high correlation to flow rate measurements using a nasal cannula.
Integrated All Electrical Pulse Wave Velocity and Respiration Sensors Using Bio-Impedance
TLDR
Wire-free integrated sensors that monitor pulse wave velocity (PWV) and respiration, both non-electrical vital signs, by using an all-Electrical method using bio-impedance and analog-modulated body-channel communication, respectively are proposed.
Improvement of Dynamic Respiration Monitoring Through Sensor Fusion of Accelerometer and Gyro-sensor
TLDR
A method to improve the fusion of an accelerometer and gyro sensor by using a Kalman filter to produce a more high-quality respiration signal to supplement the weakness of using a single accelerometer is suggested.
Accelerometer-Based Respiratory Measurement During Speech
TLDR
It is concluded that the accelerometer-derived rotation rate signal does not appear to be a good proxy for airflow rate as previously suggested, and instead seems to better reflect the role of specific muscles around the accelerometers location.
Estimation of respiratory waveform using an accelerometer
TLDR
A method to detect the respiratory waveform from an accelerometer strapped onto the chest is proposed, suitable for automatic identification of some respiratory malfunction, for example during the obstructive apnea.
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