Near Field Communication

NFC is a wireless communication technology which enables the user to interact with their surroundings by touching their phone to a RF ID tag. The tags require no power as the phone activates the tag when it is within 2 centimetres.

NFC uses ISO/IEC 14443 and communicates via magnetic field induction operating at a radio frequency of 13.56 MHz using loop antennas. The tags in the sign are passive and are only activated by the loop being completed by the equivalent antenna in the NFC mobile phone. This takes around 0.3 seconds.