Saturday, 13 December 2014

ENVIRONMENT SENSING USING SMARTPHONE



ENVIRONMENT SENSING USING SMARTPHONE

Abstract
Mobile devices (in particular smartphones and tablets) can be used to monitor quality of life parameters. Today mobile  devices use embedded sensors such as accelerometers, compasses,  GPSs, microphones, and cameras without considering, for  example, the air quality or the pollutants of the environment.  This paper presents the possibility to use the smartphones  capabilities to gather data from other phones or sensors.  Nowadays, monitoring climate condition’s parameters such as temperature and humidity is a prominent factor to control the  changes of the environmental condition of living or working  places for the human being. This point can be obtained by using  distributed devices in different environments that containing  high-resolution sensors and a wireless transmission apparatus for  transferring data to smartphones. The Bluetooth was chosen as a  transmission tool since it is embedded in all smartphones and it  can work in the absence of the Wi-Fi connection. Smartphones  are the programmable tools to have different kinds of  applications that allow communicating with other devices and  also gathering, analyzing and verifying data. In this paper, a  novel interface by applying a Bluetooth-based sensor to sense  Temperature and Humidity for monitoring of the environmental  conditions using the android-based Smartphone is introduced.
            The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of the microcontroller and other components.

Advantages:
1.     Wireless control appliances
2.     Monitor the home environment
3.     Effectively utilize wireless technology
4.     Save energy

Applications:
1.     Home monitoring system
2.     Industrial monitoring and security
3.     Office management system




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