Patent ID: 7034715
Filing Date: 2006-04-25
Classification: G07B,G08G

Abstract:
1. A method for monitoring the correct operation of a toll payment apparatus involving a vehicle with a vehicle license number, comprising: producing at least one optical signal, characteristic of the operating state of the toll payment apparatus, on the vehicle; monitoring at least one of a status of a usage authorization and the status of the toll payment apparatus in terms of whether it is switched on or off, in at least one of a prepayment card and in a billing center, wherein the usage authorization is in at least one of a form of credit for toll fees incurred, in the form of a time card for the use of predetermined routes subject to a toll in a certain time period, in the form of route credits, and in the form of timings; and transmitting the usage authorization desired by a vehicle driver as a code to the toll payment apparatus, wherein the code is transmitted in a scrambled form.