The problem Indoor Navigation System solves

There is a lot of outside navigation systems apps like google map are available but none of them support Indoor navigation inside a building, malls, houses, airports. An indoor navigation app would certainly benefit users who are unfamiliar with a place like it's help's a passenger to navigate to their boarding pass in airports. The obvious use of indoor navigation in malls is to get turn-by-turn directions to a particular store. It also helps in hospitals, if a person has an emergency then indoor navigation helps him/her to get a certain direction to a particular ward. Indoor navigation could also benefit local users who have previously visited a location but are still unaware of the whereabouts of some of the desired locations. These include supermarkets, libraries and shopping malls, etc.

Challenges we ran into

In the RSSI model, we have a problem that it cannot give altitude to phones who don't have pressure sensors. In indoor navigation, we can use Beacons, AR, wifi positioning system but beacons are very costly ( around 10000 dollars) so we use a wifi positioning system but in wifi positioning system its range is low ( around 6 to 10 m) .