  Mobile phones and smartphones have evolved to be very powerful devices that
have the potential to be utilized in many application areas apart from generic
communication. With each passing year, we see increasingly powerful smartphones
being manufactured, which have a plethora of powerful embedded sensors like
microphone, camera, digital compass, GPS, accelerometer, temperature sensors
and many more. Moreover, the ability to easily program today's smartphones,
enables us to exploit these sensors, in a wide variety of application such as
personal safety, emergency and calamity response, situation awareness, remote
activity monitoring, transportation and environment monitoring. In this paper,
we survey the existing mobile phone sensing methodologies and application
areas. We also formulate the architectural framework of our project,
SenseDroid, its utility, limitations and possible future applications.
