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The continuous monitoring of blood pressure (BP) has been found to significantly predict the risk of severe cardiovascular disease. Pulse arrival time (PAT), generally extracted from synchronized photoplethysmogram (PPG) and electrocardiogram (ECG) signals, is widely adopted in noninvasive blood pressure studies. However, motion artifact and physical activities introduce different levels of noise...
This paper presents the design, implementation and test of a watch with the capability to measure multiple physiological signals, such as photoplethysmography (PPG), electrocardiography (ECG), and some physiological parameters extracted from PPG and ECG. Based on the PPG and ECG signals, the pulse rate and heart rate could be extracted respectively. Moreover, the pulse transmit time (PTT) could be...
This paper has presented a wearable sleep apnea monitoring wrist watch, its micro controller controls sensors to detect user's respiratory airflow, blood oxygen saturation(SpÜ2), electrocardiogram(ECG) and breathing movement in real-time. Then our algorithm uses these physiological parameters to estimate whether the apnea occurs or not. In addition, this wrist watch provides motion state of users...
With the growth of aging populations in both developed and developing countries and the increase of noncommunicable disease, the contradiction between increasing healthcare demands and the shortage of medical specialists have become more and more serious. Wearable personal health devices (PHDs) provide a good solution to this problem. But due to the proprietary interface and data protocol, the compatibility...
A multifunction wearable noninvasive ambulatory monitoring sensor based on Electrocardiogram (ECG) and Impedance Cardiography (ICG) has been designed, fabricated and tested. The electric function (with ECG) and mechanical function (with ICG) of the heart can be monitored simultaneously and continuously. Based the RR serials computed from ECG waveform, the sympathetic and parasympathetic function of...
A novel algorithm for subtracting the artifacts from an electrocardiogram (ECG) signal and detecting the QRS complex based on empirical mode decomposition has been designed, tested, and evaluated. This method can remove both the noise of the power line interference and baseline wander from the ECG signal with minimum distortion, and ${R}$ peaks can be exactly detected. The method is tested and evaluated...
In this paper, we mainly present a group physiological monitoring system, called GPMSwLF, which is coupled with a location subsystem. GPMSwLF is based on 802.15.4 wireless network and comprises three kinds of devices: Coordinator, Relay Point (RP) and Physiological Monitor (PM). Coordinator establishes and maintains a wireless network and serves as an interface between GPMSwLF and PC. RP extends the...
We developed and tested the Institute of Electronics, Chinese Academy of Sciences (IECAS) 3AHcare node, a health monitoring device capable of measuring a subject's ECG, blood pressure, blood oxygenation, respiration, temperature and motion - almost equivalent to the feature set of a hospital bedside patient monitor. The main contribution of this paper include: the device has been a highly integrated...
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