PROTOTYPING ALAT UKUR DENYUT JANTUNG MANUSIA DENGAN SISTEM PHOTOPLETHYSMOGRAPHY DI 10 LOKASI DETEKSI
Keywords:Finger-Type, Heart Rate, Photoplethysmography (PPG), Health Monitoring, Arduino
In the world of health one of the organs that often get attention is the heart. A heart that will always pulsate at all times as long as man lives. Conventional heart rate measurement is done by listening to the heart rate using a stethoscope or feeling the pulse. But in conventional measurements the results are influenced by the level of sensitivity of the person who measures and must also ensure the exact measurement time of 1 minute. Today it is widely developed with Photoplethysmography (PPG) techniques to measure human heart rate. PPG is claimed to be easier and cheaper than Electrocardiogram (ECG) techniques. However, the ppg technique of the transmission mode at the fingertips that is currently widely used does not allow the user to move and do activities freely. This study aims to find out the possibility of heart rate measurement using PPG technique on Human Finger. Prototype human heart rate gauge designed consists of (1). Pulse Sensor to measure the amount of heart rate by minutes or BPM (Beats Per Minutes) (2). LCD I2C To Display the heart rate that has been detected by the Pulse sensor in realtime (3). Arduino microcontroller: receives and processes signals to determine the heart rate value in BPM. (4) 9V battery as a power source. It takes heart rate on 10 fingers on 30 different objects, consisting of 15 men and 15 women with different health conditions. The results showed that between 10 fingers, the left thumb has a flat - average error between the prototype tool and the oxymeter of 0.04 %.
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