Abstract:
A method for measuring the position of a surface of a vehicle on a roadway comprising the following steps: transmitting and receiving radar beams at transmitting and receiving positions in various primary transmitting and primary receiving directions and converting these beams into received signals; selecting the received signal having the greatest signal strength; and determining the aforementioned position from the transmitting and receiving positions and the primary transmitting and primary receiving directions of the received signal having the greatest signal strength.
Abstract:
The present subject matter relates to an onboard unit for a traffic telematics system, comprising: a first communication module, designed for near-range radio communication with a first external communication device, a second communication module, designed for far-range radio communication with a second external communication device, and a non-volatile memory, which can be accessed both by the first and the second communication module, wherein each communication module has a power-supplied communication mode and a powerless or power-saving rest mode, and wherein the power supply of the memory during an access thereto is effected by the accessing communication module. The present subject matter further relates to an onboard system for a vehicle comprising such an onboard unit, and to a communication device for said system.
Abstract:
A method for generating a parking fee transaction for a vehicle that comprises an onboard unit having an identifier, and a radio beacon and an onboard unit for carrying out the method, are provided. The method includes: wirelessly polling the identifier by a roadside radio beacon as a current identifier, generating a parking fee transaction for the identifier if the current identifier is identical to a stored old identifier, storing the current identifier as the old identifier, waiting a predetermined time period, and repeating these steps.
Abstract:
A rotating wheel of a vehicle is detected by evaluating the Doppler shift of a measuring beam, which is emitted by a detector unit passed by the vehicle, and is reflected by the wheel and returned in Doppler-shifted form. In a relative position to the wheel, the vehicle comprises an onboard unit, which can establish radio communication with a transceiver having a known location in the detector unit. The direction and distance of the onboard unit from the transceiver are measured on the basis of at least one radio communication between the same. The radiation direction or radiation position of the measuring beam is controlled in accordance with the measured direction and distance and taking into consideration the aforementioned relative position and location.
Abstract:
An assembly for electrically recharging vehicles, to which individual radio units are assigned, having a parking space for a vehicle, a recharging station assigned to the parking space for cable-connected recharging of a vehicle located therein, and a transceiver connecting to the recharging station for communication with a radio unit, wherein the transceiver clears the recharging station for the recharging process depending on the communication with the radio unit, and the transceiver has a communication zone, which is restricted to the region of the parking space or can locate a radio unit as being located in this restricted region.
Abstract:
Control devices and methods for a road toll system that is based on vehicle-based on-board units, using recording vehicles, control vehicles and a violation server, wherein the recording vehicle reads out a toll parameter from the on-board unit of a passing vehicle via a DSRC radio interface, compares it to a shape parameter of the vehicle detected by a sensor, and based thereon, in case of inconsistency, generates a violation data record and transmits it to the violation server, wherein the control vehicle registers the position or surroundings thereof in the violation server, and the violation server makes available to a control vehicle such violation data records, the locations of the violations of which are within the surroundings of a position of the control vehicle, wherein the control vehicle issues an alert message when it detects a violating vehicle in the surroundings, and wherein, during the transmission of a violation data record from the recording vehicle to the violation server and/or from the violation server to the control vehicle, the violation data record is divided into a TCP part and a UDP part.
Abstract:
The subject matter disclosed herein relates to a method for checking toll transactions, produced from position notifications of a mobile phone connected via a mobile network to a transaction server, with the aid of a network of distributed toll beacons, which can communicate via short-range radio with on-board units of passing vehicles and are connected to the transaction server. To this end, a interoperable multi-functional OBU is created that is formed from a GNSS- and NFC-enabled mobile phone on the one hand and an NFC- and DSRC-enabled OBU on the other hand, which exchange data concerning a session identifier (SID) via their common NFC interface, which session identifier forms a link between the infrastructureless and the infrastructure-bound billing functions of the multi-functional OBU. The disclosed subject matter also relates to a toll beacon and a transaction server for same.
Abstract:
The subject matter disclosed herein relates to a method for checking toll transactions, produced from position notifications of a mobile phone connected via a mobile network to a transaction server, with the aid of a network of distributed toll beacons, which can communicate via short-range radio with on-board units of passing vehicles and are connected to the transaction server. To this end, a interoperable multi-functional OBU is created that is formed from a GNSS- and NFC-enabled mobile phone on the one hand and an NFC- and DSRC-enabled OBU on the other hand, which exchange data concerning a session identifier (SID) via their common NFC interface, which session identifier forms a link between the infrastructureless and the infrastructure-bound billing functions of the multi-functional OBU. The disclosed subject matter also relates to a toll beacon and a transaction server for same.
Abstract:
An apparatus is disclosed for measuring the position of a vehicle or a surface thereof on a roadway. The apparatus comprises at least one radar transmitter, which is arranged in a transmitting position above the plane of the roadway and transmits radar beams downwardly, a plurality of radar receivers, which are distributed above the plane of the roadway in different receiving positions at distances from one another, receive reflections of the radar beams from beneath, and convert the reflections into a received signal, and an evaluation device, which is connected to the radar transmitter and the radar receivers and is configured to measure the said position from the transmitting position, the receiving positions and the received signals.
Abstract:
A method is disclosed for reading license plate numbers in a road network, comprising: recording an image of a license plate number at a first location, OCR-reading a license plate character string in the image, and storing an OCR data set in a database; recording an image of a license plate number at a second location, OCR-reading a license plate number character string in the image, and generating a current OCR data set; and, if a confidence measure of the current OCR data set falls below a first minimum confidence value, selecting a stored OCR data set with a license plate number image having a similarity exceeding a minimum similarity value and/or having the greatest similarity to the license plate number image of the current OCR data set, and using the selected OCR data set for improving the license plate number character string of the current OCR data set.