RSA

A small device that can be put on the wall next to or on top of rooms and places in a building.

Connects to an app where the user can chose where they wants to go, say the select lifts, the app will connect to the small box and vibrate the users phone as they get closer to it.

It could also say directions or when to turn for example.

It could also come up with a compass, the user turns in the direction, the phone will vibrate when they are facing the right direction, they can go in that general direction and find what they need.

This can also be used by non blind people as some buildings are mazes and hard to find where you want to go.