We are developing an Android application for a smartwatch that can collect physiological measurements and use them to detect emergency situations such as falls, leaving a predefined area, and manual activation as needed, and send alerts that include the watch wearer’s location and a description of the detected emergency. We have a Galaxy Watch 4 smartwatch, which collects the measurements using its built-in sensors according to the emergency situations. Detection of leaving a predefined area within a defined range is implemented based on the Haversine formula. The fall detection mechanism is implemented using a recurrent neural network (RNN) artificial intelligence algorithm.

