Early detection of cardiovascular disease with photoplethysmogram(PPG) sensor

摘要

Cardiovascular disease is still main cause of death in all over the world. Effort in preventing cardiovascular disease with early detection approach is more effective way to decrease population suffered from cardiovascular disease. Photoplethysmogram (PPG) is blood volume measurement method based on optic principle. Volume change caused by vessel pressure can be detected with illuminating skin by the light from photodiode. PPG sensor parameter such as Augmentation Index, Stiffness Index and Age index can be used to measure quality of human blood vessel. This work developed a device for early detection of cardiovascular with PPG signal. Signal received will be proceed and transmitted wirelessly through smartphone/tablet device by Bluetooth. Developed application in smartphone/tablet based on Android platform is designed with easily interpretable and attractive user interface targeting common people. Furthermore, this application is completed with many features that can optimized user experience in this PPG signal interpretation based on previous work. Result interpretation is displayed in colour code which are red (danger), yellow (careful), and green (normal).