Abstract— Mobile devices are common and mobile
internet access is increasingly possible everywhere in
daily life of modern people. Commonly used mobile
operating systems are Android, iOS and Windows.
Android stands out with its open source nature and
working capabilities on inexpensive mobile devices.
Real-time location tracking is continuously monitoring
a vehicle or a person by using obtained coordinates
with GPS, Wi-Fi or Cell-Id. Considering that the client
person uses mobile phone with internet on it, location
tracking can be done with a mobile application.
Therefore, using GPS sensor suffers from rapid energy
consumption. This paper presents design and
implementation of an android based energy aware
real-time location tracking system (EWAREL) using
GPS sensor. Its hybrid positioning technique employs
other inertial sensors and data sending mechanism for
saving energy to be efficient. Introduced EWAREL is
a lifesaving application especially for real-time
monitoring elderly people suffering from Alzheimer’s.
Alzheimer’s people are monitored with EWAREL
application and are prevented from being lost.
EWAREL is ready to be generalized for other
scenarios such as other health monitoring applications,
giving direction, monitoring and directing of field staff