LOC.id is the name of a Bluetooth-based system, that can be applied very well at traffic light facilities or for dynamic passenger information.
The user can choose between two different possibilities for the application: a “1 button device” as the transmitter or an app, that is installed on a smart phone and functions as a transmitter.
When the user approaches a facility equipped with a receiver, he or she is recognized and an orientation signal with enhanced volume is triggered. The closer the user comes to the traffic light facility, the quieter the signal becomes until the user reaches the facility and the volume returns to its original level. The release phase is, as always, signaled by an acoustical release tone. Sometimes this phase is quite short. To make the crossing at the crosswalk safe despite this brevity, the orientation signal on the other side of the street efficiently guides the user across the street.