Classifications

• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
  • G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
  • G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
  • G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
  • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
  • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
  • G01S11/04—Systems for determining distance or velocity not using reflection or reradiation using radio waves using angle measurements
• • G—PHYSICS
  • G08—SIGNALLING
  • G08G—TRAFFIC CONTROL SYSTEMS
  • G08G1/00—Traffic control systems for road vehicles
  • G08G1/01—Detecting movement of traffic to be counted or controlled
  • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
  • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
  • G01S11/12—Systems for determining distance or velocity not using reflection or reradiation using electromagnetic waves other than radio waves
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
  • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
  • G01S13/88—Radar or analogous systems specially adapted for specific applications
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
  • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
  • G01S13/88—Radar or analogous systems specially adapted for specific applications
  • G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
  • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
  • G01S17/88—Lidar systems specially adapted for specific applications

Definitions

• the invention is based on a method for
• Identification of a vehicle on a road which is located in the short-range transmission reception field of a beacon and carries out data transmission with its vehicle device, according to the preamble of the main claim.
• the inventive method for identifying a vehicle with the characterizing features of the main claim has the advantage that the proposed solution is a simple method for unambiguous assignment of a vehicle position and data transmission using the speed measurement on a single beacon and a sensor. It is particularly advantageous that the method has no special requirements or changes with regard to the
• Carrier frequency, bandwidth, modulation or transmission of special data sequences It is therefore fundamentally compatible with the future standard of short-range data transmission at 5.8 GHz for traffic applications.
• the relative ones detected by the beacon and the sensor are fundamentally compatible with the future standard of short-range data transmission at 5.8 GHz for traffic applications.
• the speed measurement of the beacon and the sensor takes place simultaneously, since the correlation of the speeds then represents a reliable measure of the identity of the vehicle.
• the speed measurement can take place every time the vehicle attempts to communicate.
• a second beacon can also carry out a speed measurement.
• the arrangement of the beacons should advantageously be arranged symmetrically to the lane. In order to achieve redundancy of the measurements, the measurement should be repeated at certain time intervals.
• the entire process can be used for automatic fee collection and control of user authorizations.
• Figure 1 shows a first embodiment
• Figure 2 shows a second embodiment
• FIG. 1 shows a section of a road (10) with two lanes, a vehicle 1 (Fl) on the left, a vehicle 2 (F2) on the right lane moving towards the beacon (3).
• the vehicle 1 (Fl) travels at a speed v x and has a vehicle device (on board unit, OBU 4) with which it transmits data to the beacon (3) in the microwave frequency range, preferably at 5.8 GHz, for example using the transponder method.
• OBU 4 on board unit
• the beacon has corresponding transmitters with one or two antennas that illuminate part of the street as a communication zone. Your transmission frequencies can be set according to DE-OS 42 13 880.
• Such a transceiver is known for example from DE 41 07 803 AI and therefore need not be explained in more detail.
• the signals emitted by vehicles 1 and 2 are received by the beacon (3). It is important that every beacon transfers data from the vehicle to the beacon directly from the vehicle speed signal received in the beacon. The speed is measured by the arrangement of the communication zones - seen in the direction of travel in front of the beacons - when driving in the direction of the beacon. A suitable method is described in DE 43 31 286. The type of modulation used in the vehicle device (4) and the principle of downmixing in the beacon are advantageously used. The additional circuitry of a corresponding evaluation unit in the beacon is comparatively small and, in so far, is particularly inexpensive. The speed of the vehicles cannot be measured directly because the vehicles do not move in the direct direction of the beacon, but pass it. The measured speeds v 1R and v 2R on the beacon are lower than the actual ones
• the beacon measures that
• ⁇ and ß are the respective angles between the vehicles and the beacon in the xy plane and ⁇ lf ⁇ 2 the angles in the xz plane.
• the position and the speed of the vehicles must be determined by sensors S1 and S2. It is possible to use all sensors that can determine position and measure speed.
• the sensors S1 and S2 determine the position of the vehicles F1 and F2 at X ⁇ , y 1 , z 1 and x 2 ; y 2 , z 2 m * * -t the speeds v x and v 2 (6).
• the speed measured by the sensor In order to enable the assignment of the vehicle position to the measured associated speeds, the speed measured by the sensor must be corrected as if it had been measured from the beacon (3).
• the comparison also allows an assessment of the quality of the result. The smaller the difference between the measured speeds (v R * - v R ), the more certain the result. If the same speeds are measured for both vehicles, an assignment during this data transmission is not possible. The next data transfer, which typically takes place after a few meters of driving, will deliver different speeds due to changed geometric conditions, and thus show a usable result. If the vehicles are stationary, no speed can be measured and an assignment is not possible at this moment. In this case, the vehicles remain in the communication zone for a long time. The beacon can then be queried when the vehicles start up be performed. The start-up itself is detected by the sensor system.
• the proposed method represented a simple solution for assigning vehicle position and data transmission by means of speed measurement. Since the method does not impose any special requirements or changes with regard to carrier frequency, bandwidth, modulation or transmission of special data sequences, the method is fundamentally compatible with the future standard of short-range data transmission at 5 .8 GHz for traffic applications.
• the sensors can simultaneously be able to classify a vehicle in groups such as. B. cars or trucks as z. B. for the Access authorization or for automatic fee collection is necessary.
• groups such as. B. cars or trucks as z. B. for the Access authorization or for automatic fee collection is necessary.
• video technology it is still possible to document false and non-paying users.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Business, Economics & Management (AREA)
• Finance (AREA)
• Radar, Positioning & Navigation (AREA)
• Remote Sensing (AREA)
• Traffic Control Systems (AREA)
• Devices For Checking Fares Or Tickets At Control Points (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=7802921

Family Applications (1)

Country Status (5)

Families Citing this family (6)

Family Cites Families (2)

• 1996
  • 1996-08-17 DE DE19633240A patent/DE19633240A1/de not_active Withdrawn
• 1997
  • 1997-07-09 WO PCT/DE1997/001445 patent/WO1998008110A1/de not_active Application Discontinuation
  • 1997-07-09 AU AU35387/97A patent/AU721393B2/en not_active Ceased
  • 1997-07-09 EP EP97931722A patent/EP0919000A1/de not_active Withdrawn
  • 1997-07-09 KR KR1019997001107A patent/KR20000068095A/ko not_active Application Discontinuation

Non-Patent Citations (1)

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