Indoor Navigation means the flexible guidance of people in confusing, unknown buildings and building complexes. The user of an indoor navigation system gets his own location displayed on a map on his own smart device. After selecting a destination or a point of interest, a route to the selected destination is displayed on the map. The user’s position in and around the building is permanently updated by indoor positioning, so that the device always shows the current position on the route. Because the position is calculated on the user’s device, this is called client-side positioning

The so-called inertial sensors built into the device as standard, for example the gyroscope (rotation sensor), are also used for indoor positioning and indoor navigation. The result is a turn-by-turn indoor navigation.