Laserfiche WebLink
of change is highly variable, with some on -premise signs changing faster than once per <br />second. While no standard is generally accepted, local government agencies have used <br />ordinances to limit the frequency to anywhere from 5 seconds to 24 hours. <br />Interactive signs <br />Interactive signs change their message based on the person viewing it. For example, the <br />carmaker MINI has installed variable message signs that display a customized message to car <br />owners who have special key dongles containing a radio frequency identification (RFID) <br />chips when the dongle is in close proximity to the sign. <br />Another example is a microphone system that identifies the radio stations passing drivers are <br />listening to and displays a specific message for that station. <br />C-2 <br />