Vital signals of patients, such as heart rate, temperature and movement are crucial to monitor patients in
hospital. Current heart rate measurement is obtained by using Electrocardiograph, which normally applies
electrodes to the patient's body. As electrodes are extremely uncomfortable to ware and hinder patient's
movement, a non-invasive vital signal-monitoring device will be a better solution. Similar to
Electrocardiograph, the device detects the voltage difference across the heart by using concept of capacitance,
which can be obtained by two conductive fiber sewing on the bed sheet. Simultaneous temperature reading
can also be detected by using surface mounted temperature sensor. This paper will mainly focus on the heart
rate monitoring.
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