Patent ID: 6892942

Claim:
A roadside control device for checking correct operation of a toll apparatus which is installed in a motor vehicle passing the control device and exhibiting an identifying license plate, the toll apparatus performing a satellite-supported electronic toll deduction, the control device comprising: a) communication means for wirelessly exchanging information with the toll apparatus in the passing vehicle, the information being pertinent to a current operating state of the toll apparatus; b) classification means for allocating the passing vehicle to a predetermined vehicle class; c) evaluating means for carrying out a plausibility check to determine whether the information received from the toll apparatus of the passing vehicle by the communication means comports with the vehicle class to which the passing vehicle is allocated by the classification means; d) recording means for recording the license plate of the passing vehicle in case of an unsuccessful exchange of information of the communication means with the toll apparatus of the passing vehicle or in case of a negative result of the plausibility check of the evaluating means; and e) trigger means for accurately timed activation of the communication means, the classification means, the evaluating means, and the recording means.