ALLERTia is an Android application for detecting fall of a person or a car accident by analyzing the accelerometer signal. When a fall is detected ALLERTia asks the user if he is okay. If the user doesn’t respond or confirms he is okay, a phone call and sms with the location of the user is send to the emergency contact phone number.
Quaternion (Apache Commons Math 3.5 API) jakewharton.github.io/butterknife/ Google Maps API