This paper presents an integrated framework of a precise navigation system for visually impaired and blind people. It uses pedestrian tracking methods, SLAM as known from mobile robots, and GPS. The importance of a for the blind and visually impaired adapted route planning is shown. The system could be for those people a great improvement allowing the navigation and exploration of unknown environments. Tests with visually impaired people will be performed. General preferences for indoor at outdoor navigation will be studied. Based on these results the system will be implemented for route planning of visually impaired and blind people. The system has currently been tested with recollected data, and field tests with visually impaired and blind people are planned.