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R-R interval measurement system for car drivers that allows measurement while the driver is driving with one hand has been developed. This system is intended for analysis of R-R interval fluctuation which is related to drowsiness and stress. R-R interval is the interval between R-waves in electrocardiogram (ECG). Our goal is to detect changes in R-R interval fluctuation and alert the driver to prevent...
We proposed a noise reduction method for in-vehicle heartbeat sensor systems. The system measures the driver's heartbeat using a steering wheel electrode and a seat electrode that has dual construction. This configuration allows measurement while driving with one hand and provides two signals for noise cancellation. However, the amplitude ratio of the common mode noise varies when driving at high...
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