International Journal of Advanced Research in Computer and Communication Engineering (IJARCCE)
Today the concept of pervasive computing (ubiquitous computing) is growing rapidly in smartphones. It requires the device to be up and running all the time and constantly connected. In smartphones different sensors like proximity, microphone, magnetometer; GPS, WIFI, camera etc. are embedded in the device. These sensors are active all the time for the purpose of collecting all the user contextual data so it can be used further analysis. This system works on inferring the users microenvironment event change i.e. sensors analyze the input data and detect any events through the parameters.