I want to share a project I worked on at Worcester Polytechnic Institute with Professor Emmanuel Agu, Ben Lipson, and Devin Thomas. We designed a proof of concept of an RFID based indoor navigation system for people with limited vision.
The idea is by using inexpensive passive RFID tags and an embedded walking cane, users would receive timely information regarding their current location.
You can find the paper here: https://pdfs.semanticscholar.org/a278/f7b345b1019c6b9744e681af01b083d61c67.pdf
Our work was featured with the Massachusetts Institute of Technology Visually Impaired and Blind User Group in Cambridge, MA. You can find more information on this group at www.vibug.org
Also find more projects by Punit Dharani here