Abstract: A device for determining the position of a vehicle on a roadway by using radio waves which are emitted from the device and reflected by the vehicle and received by at least two array antennas (1, 2) arranged across the roadway, wherein the array antennas (1, 2) comprise a number of antenna elements (5–14), one of the antenna elements in the respective array antenna constituting the phase center (5, 10) of the array antennas, and wherein the antenna elements (5–14) of the array antennas are connected to one another such that the distance (d) between the phase centers (5, 10) of the array antennas (1, 2) included is smaller than half the width of an individual array antenna (1, 2).

Abstract: A method and a device for image registration of the external characteristics and the number plate of a vehicle in a road toll unit for checking the payment status relating to a toll fee, which is intended to be collected by means of remote communication. During the checking and payment operation, the vehicle is followed by successive video recordings. In these recordings, a marker is connected to the vehicle. The same marker is connected to the image of the number plate and to an image of the physical shape of the vehicle. In the event of incorrect payment, a search may be performed based upon both the image of the number plate and the associated image of the physical shape of the vehicle, which are connected together by means of the successive following of the position of the vehicle.

Abstract: A method and a device for image registration of the external characteristics and the number plate of a vehicle (4) in a road toll unit (1) for checking the payment status relating to a toll fee, which is intended to be collected by means of remote communication. During the check-up and payment operation, the vehicle is followed by successive video recordings. In these recordings, a marker is connected to the vehicle. The same marker is connected to the image of the number plate and to an image of the physical shape of the vehicle (4). In the event of incorrect payment, a search may be based on both the image of the number plate and the associated image of the physical shape of the vehicle which are connected together by means of the successive following of the position. The class of the vehicle may thus be determined, in accordance with a classification scheme based on the physical properties of the vehicle, from the image of the external characteristics of the vehicle for determining the toll fee.

Abstract: A method and system for registering vehicle fees by means of radio communication between stationary toll collection facilities in a toll border (1, 2) of a main zone and communication equipments in passing vehicles when making predetermined checking operations such as for securing the authority of the vehicle equipment. Within the main zone a number of radio transmitters are arranged, which transmit data carrying signals relating to additional fees related to passing the respective transmitter. When passing in, the toll collection facilities carry out an introductory part of the checking operations and activate the vehicle equipment to register signals from the transmitters when passing them. When passing out, the registering operation is terminated including the checking operations, then summing up the registered fees and debiting the total fee.

Abstract: A method for data transfer for various applications between a on board unit (OBU), which comprises a processor, memory means and at least one interface to an external entitiy. A sequence of commands is exchanged over the interface and processed by the OBU in order to perform the respective task according to the application of the OBU and/or the external entity. The system for data transfer comprises a macro interpreter in the OBU to receive and interpret the macros from one of its interfaces.

Abstract: A keyboard means in stationary control units (23) in a vehicle. The keys (24) thereof are arranged at an outer edge portion of the unit (23), which has the shape of a thin plate (23), which may be embraced in a pinching movement, preferably a pinching movement between the thumb and some finger. The keys may thus be pressed down from one side of the edge portion while supporting it from the opposite side by another finger. This results in very limited free forces against the unit during operation.

Abstract: End or concluding production of data carrying communication equipment in traffic checking systems, which comprise a plurality of stationary communication equipments for remotely checking passing vehicles which are provided with mobile data carrying units (23) for remote communication. The data carrying communication equipment of the stationary equipment and the vehicle units are manufactured initially in serial production in non-defined shape without any storing of the data required for the communication. For end production including storing of data a plurality of computers (2) for general data processing and data storage media (1, 16) which are associated therewith and can be individually handled are used. A system administrator (AY) produces a storage medium (3) containing all the data for the communication.

Abstract: A method for radio communication between mutually mobile objects. Prior to radio communication between the objects, calculations are preformed with a communication and calculation unit of a first of the objects to produce established data, answer codes are generated from the established data, and one of the answer codes is selected for communication to a second of the objects. The communication between the objects is carried out, including transmission of the selected answer code from the first object to the second object and transmission of data from the second object to the first object. After radio communication between the objects, calculations are performed with the communication and calculation unit of the first of the objects. A final result of the communication of between the objects and calculations performed by the communication and calculation unit of the first of the objects is stored after radio communication between the objects.