Pedestrian smartphone based localization for large indoor areas

The implementation of a reliable indoor localization system can be the starting point for a variety of much desired applications. Either we want to implement a solution for efficient patient monitoring inside a hospital or an automatic guide inside a museum, a working localization solution is needed. Smartphone technology provides us with a powerful and user friendly tool in order to achieve adequate indoor positioning. This paper explores the potential of using smartphone sensor data (accelerometer and compass) in order to retrieve the real time location of the person holding the device. In order to reduce the overall accumulating error, our solution uses NFC readings to recalibrate the location.