Abstract
In this paper an automated smart health band which can measure blood pressure, body temperature and pulse rate at a same time of human body is presented. It uses Arduino Uno which contain a microcontroller as a controller unit. Firstly the tiny signal which is detected by pressure sensor is amplified by an instrument amplifier, then the amplified signal will be divided into cuff-pressure oscillation signal (AC) and cuff pressure signal (DC). Operational amplifier (op-amp) is used for filtering and amplification of the signal. The filtered and amplified signal will be sampled by ADC module of microcontroller. From which AC and DC voltage series will be the output. By oscillometric method, systolic pressure and diastolic pressure can be calculated out. Secondly by sensing the signal of pulse sensor, pulse rate can be detected. Thirdly, temperature signal from the human body is collected through the digital temperature sensor. These signals are sent to the microcontroller of Arduino Uno and calibrated into degree Fahrenheit. All these output from health band as blood pressure, pulse rate and body temperature are displayed into the LCD. The automated digital health band works quite well when compared with conventional measurement methods of blood pressure, body temperature and pulse rate.
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