inContexto: A fusion architecture to obtain mobile context

Thanks to the embedded sensors providing in mobile devices will revolutionize the way to carry out with. Mobile devices provide a set of embedded sensors, such as accelerometer, digital compass, gyroscope, GPS, microphone, and camera. Another point to consider, is that mobile devices are easily programmable since an API was included by the OS companies. This paper aims to describe a distributed architecture, called inContexto, to recognize physical actions perfomed by users such as walking, running, being stand, sitting and also retrieve context information from the user. Sensory data is collected by HTC magic application made in Android OS.