Abstract
Trajectory is the path that is formed because of the moving object positioning history. Based on where it happened, trajectory can be formed in indoor or outdoor environment. While outdoor trajectory can be reconstructed by GPS technology, this technology is not sufficient to be used in indoor environment. However, there are some embedded sensors in mobile devices that can be utilized to track and reconstruct trajectory in indoor environment without utilizing GPS technology. In this paper, we propose the method to track and reconstruct trajectory for indoor environment using embedded mobiles sensors. Our experiment shows that these sensors are capable in tracking and reconstructing indoor trajectories without using any GPS technologies.