Health Status Monitor Based on Embedded Photoplethysmography and Smart Phone

The paper presents a wireless personal area network (WPAN) including two Bluetooth enabled measuring nodes that delivers information about some physiological parameters extracted from plethysmography signals and provides information of indoor air temperature and relative humidity. The data from the node of physiological and air parameter measurements are received by a smart phone device through Bluetooth communication. J2ME developed software assures Bluetooth device detection and identification, data reading, primary processing, data storage and automatic alarm generation. Critical health status associated with the assessed person leads to an automatic SMS generation. Elements related to heart rate variability estimation are also included.