Abstract
A low cost, portable, high performance noninvasive glucose meter system is proposed using 3 wavelengths near infrared spectroscopy (NIRS) and bioimpedance spectroscopy (BIS). The glucose level can be calculated by using the measured parameter of the two systems as features to linear regression model. The BIS system performs a two frequency sweeps to record the lowest impedance point. The NIRS system uses 3 different LEDs with three different wavelengths to which the glucose molecules have peak absorption and less sensitive to other blood components. After measurement is done, the results are sent via Bluetooth to a mobile application to be displayed for the user. The results are saved to a cloud database using the 3G mobile connection to be integrated with Internet of Things (IoT) applications in healthcare. The system achieved 95.6% of the results in Region A of Clarke grid analysis. The proposed system does not require any pre-calibration and can be generally used by different users.
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