"LET ME SEE THE WORLD" follow me on facebook


  • the picture of university campus University Campus Where is the next classroom?
  • the picture of shopping center Shopping Mall I want to get new clothes for summer vacation.
  • the picture of museum Museum What is in front of me? Explain.

Simple as that.

However, even tasks as simple as these are challenging for people with congenital or incidental disabilities.
NavCog is an iPhone app, aimed specifically to help people with visual impairments explore the world without vision.

NavCog is opensourced as a part of Hulop project.

Also, you can download our app from App Store.


NavCog is an indoor navigation system,
that achieves accurate localization using a novel algorithm
which combines Bluetooth Low Energy (BLE) Beacons with smartphone senssors.

the image of NavCog system

How to use

1. Enter Destination

Enter your destination into our app, and it will calculate the route.

2. Turn-by-Turn Voice Navigation

Your phone will navigate you to your destination with audio feedback.

3. Arrive at Destination

You will be notified when you arrive at your destination.

How to install

  • 1. Deploy and manage beacons
  • 2. Sample beacon data
  • 3. Generate topology map
  • 4. Add accessibility information


Currently covered. . .

Carnegie Mellon University (Pittsburgh)

Pittsburgh International Airport

Future Plan