The system is to be used in new buildings to the user , such as school, malls and hospitals.
There must be more to the project than just "You are in Room 2C32". I'm guessing it's meant to be used to guide the user from place to place. If you have LEDs (IR LEDs?) transmitting data, is that data supposed to define a location? Something like one LED sends "2C32". The one next door sends "2C33". The one upstairs sends "3C32". If so, since the receiver must be able to see the transmitting LEDs, how will it know how to send the user from 2C32 to 3C32? How will it know that 3C32 even exists? How will it know the relationship between 2C32 and 2C33? Between 2C32 and Men's Room?