EP1353307A1 - Gerät mit Transponder für Fahrzeuge - Google Patents

Gerät mit Transponder für Fahrzeuge Download PDF

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Publication number
EP1353307A1
EP1353307A1 EP03290898A EP03290898A EP1353307A1 EP 1353307 A1 EP1353307 A1 EP 1353307A1 EP 03290898 A EP03290898 A EP 03290898A EP 03290898 A EP03290898 A EP 03290898A EP 1353307 A1 EP1353307 A1 EP 1353307A1
Authority
EP
European Patent Office
Prior art keywords
transponder
antennas
antenna
transponder device
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03290898A
Other languages
English (en)
French (fr)
Inventor
Patrick Plainchault
Jacques Ehrlich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecole Superieur d'Electronique de l'Quest (ESEO)
Laboratoire Central des Ponts et Chaussees
Original Assignee
Ecole Superieur d'Electronique de l'Quest (ESEO)
Laboratoire Central des Ponts et Chaussees
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ecole Superieur d'Electronique de l'Quest (ESEO), Laboratoire Central des Ponts et Chaussees filed Critical Ecole Superieur d'Electronique de l'Quest (ESEO)
Publication of EP1353307A1 publication Critical patent/EP1353307A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
    • 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

Definitions

  • the present invention relates to a transponder device intended to communicate with a mobile antenna mounted on a vehicle and a dialogue system between vehicles and a fixed installation which is equipped the roadway, this installation comprising at least one device for transponder.
  • the invention relates to means or systems that allow communication and possibly transmission of information between vehicles and infrastructure placed in or near a roadway, this communication being very short range, about 50 cm and based on the use of transponders essentially passive but possibly supplied with energy.
  • the fixed devices used in such systems are constituted by a transponder associated with an antenna, this assembly being arranged on or under the roadway, so that vehicles themselves equipped with an antenna can communicate with the transponder via its own antenna.
  • transponder is a component most often passive which includes controllable means for coding the signal frequency collected by the antenna associated with the transponder and means to retransmit the coded signal to the outside.
  • a first object of the present invention is to provide a transponder device which avoids the drawbacks mentioned above while allowing dialogue between the device and the vehicles in optimal conditions.
  • the transponder device has n antennas, at least some of which are arranged transversely to the road, the device can receive signals emitted by mobile antennas mounted on vehicles throughout the width of the roadway.
  • the transponders are all connected to all n antennas, we avoid risk of collision of messages mentioned above.
  • Another object of the invention is to provide a system of dialogue between vehicles and a fixed installation with which the roadway using the transponder device mentioned above.
  • the invention also relates to applications of the dialogue to resolve various problems inherent in the management of traffic.
  • each Di transponder device is constituted in this particular mode by a single transponder 12 which is connected in parallel to a plurality of antennas A1 ... Ai ... An.
  • the transponder 12 is associated with seven antennas Ai.
  • the different Di transponder devices are arranged substantially parallel to each other in the direction of the roadway 10.
  • FIG 2 there is shown the transponder 12 and a of its Ai antennas.
  • Figure 2 also shows a vehicle 14 which is equipped with a mobile antenna 16 connected to processing circuits 18 inside the vehicle.
  • the processing circuits 18 are of preferably associated with memory circuits 20 and, for example, with a display device 22 for informing the driver of the vehicle 14.
  • the antenna 16 of the vehicle is supplied by an alternating signal constituting a carrier frequency, for example the carrier frequency is 13.56 MHz.
  • the signal emitted by the antenna 16 is collected by one or more several antennas Ai of the transponder device Di when the vehicle equipped pass over the transponder device.
  • This carrier signal received by the antenna Ai is coded by the transponder 12 and the coded signal is retransmitted to the antenna 16 of the vehicle.
  • the signal collected in return by the antenna 16 is decoded by the processing circuits 18.
  • Di transponder device This includes a single transponder 12 which is connected in parallel to the antennas A1, Ai, An. It includes, for example, 9 antennas arranged perpendicular to the direction of the road. How good known, part of the energy contained in the signal collected by one or several antennas Ai is used on the one hand to activate the supply circuit 30 of the transponder, this circuit 30 in turn serving to supply the various components making up the transponder 12.
  • the transponder 12 could have its power supply clean.
  • the different antennas Ai are connected to a circuit 32 for determining the rank of the antenna or antennas having received the signal emitted by the vehicle antenna.
  • This circuit in this embodiment 32, is connected to a logic processing unit 34 whose architecture depends on the function that the transponder 12.
  • the transponder 12 also includes an assembly coding 36 associated with a control circuit of the set of coding 38 which is itself connected to the logic processing unit 34 and to the row detection circuit 32.
  • the coding assembly 36 is also connected to all Ai antennas for re-transmission of the signal received after its coding by the set 36.
  • memory means 40 can be used to permanently or temporarily store information transmitted by the signal emitted by a vehicle and collected by the Ai antennas.
  • the memory circuit 40 can also be used to store a or more information used to control the coding set 36. It is thus possible to transmit a coded signal to the vehicle antenna comprising for example an identification of the transponder device entering into dialogue with the vehicle antenna.
  • the transponder has also preferably a circuit 32 for determining the rank of the antenna or antennas having received the signal emitted by the vehicle.
  • This device thus makes it possible to retransmit directly to the vehicle this rank information without requiring processing by the processing unit logic 34.
  • Such a system makes it possible in particular to carry out a control of the trajectory of the vehicle.
  • FIG. 4 an exemplary embodiment of a Di transponder device in the case where the different antennas Ai are aligned.
  • the transponder device includes an insulating support 60 having for example a length of 1280 mm and a width of 149 mm on which 62i windings constituting the Ai antennas. Each winding is connected by a specific conductor Ci to an input Ei of the transponder 12. The length of the device extends transversely to the road.
  • the transponder 12 is also produced on the insulating support 60, this constituting, for the conductive tracks Ci and for the different elements of the transponder, a printed circuit board.
  • the distance between two windings is 32 mm. More generally, it is less than the width of the winding.
  • the different conductors Ci are connected to the different inputs Ei of the transponder.
  • the different conducting tracks Ci are linked more precisely to one of the inputs of the rank determination circuit 32.
  • the rank of the input of the circuit 32 or the row of inputs of circuit 32 receiving the signal picked up by one or more antennas immediately provides the rank of this antenna.
  • the antennas have a length L according to the direction of the pavement which is greater than their width l.
  • Antenna dimensions are relatively reduced in such a way that the device to transponder has a relatively high number of antennas, which ensures good quality of information transfer even if the vehicles are offset from the track.
  • this allows for relatively precise position detection of the vehicle in the transverse direction of the road; which is essential especially for guiding vehicles in curves.
  • the dialogue system can be used to exchange information between a first vehicle and a next vehicle. We can thus, for example, control the distance between two vehicles following each other on the same road.
  • the antennas are arranged according to a plurality of alignments substantially orthogonal to the direction of the floor.
  • the antennas are substantially aligned along the direction of the road.
  • the dialogue system further comprises, mounted on said vehicle, coding means (of the signal emitted by said mobile antenna) as a function of information to be transmitted.
  • the dialogue system comprises in in addition, mounted on the vehicle, means for memorizing the information decoded from the coded signal received by said antenna mobile at different times and means to process said stored information.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Near-Field Transmission Systems (AREA)
EP03290898A 2002-04-10 2003-04-10 Gerät mit Transponder für Fahrzeuge Withdrawn EP1353307A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0204450 2002-04-10
FR0204450A FR2838566B1 (fr) 2002-04-10 2002-04-10 Dispositif a transpondeur destine a dialoguer avec une anten ne mobile montee sur un vehicule

Publications (1)

Publication Number Publication Date
EP1353307A1 true EP1353307A1 (de) 2003-10-15

Family

ID=28052249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03290898A Withdrawn EP1353307A1 (de) 2002-04-10 2003-04-10 Gerät mit Transponder für Fahrzeuge

Country Status (2)

Country Link
EP (1) EP1353307A1 (de)
FR (1) FR2838566B1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2148443A1 (en) * 1990-11-27 1992-05-28 William K. Brockelsby Highway Vehicle Identification System with High Gain Antenna
DE4234548C1 (de) * 1992-10-14 1993-09-30 Ant Nachrichtentech Anordnung zum Erfassen von Verkehrsgrößen
DE4231881A1 (de) * 1992-09-24 1994-03-31 Ant Nachrichtentech Anordnung zum Erfassen von Verkehrsgrößen
EP0834838A2 (de) * 1994-04-13 1998-04-08 Toyota Jidosha Kabushiki Kaisha Automatisches zum fahrspurungebundenen Fahren geeignetes Abbuchungssystem
WO2000049590A1 (en) * 1999-02-18 2000-08-24 The University Court Of The University Of Edinburgh Vehicle detector and classifier
WO2000058927A1 (en) * 1999-03-31 2000-10-05 Diamond Consulting Services Limited Loop sensing apparatus for traffic detection
JP2000289617A (ja) * 1999-04-09 2000-10-17 Nippon Signal Co Ltd:The 車両用送受信装置及び車両用情報伝送装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2148443A1 (en) * 1990-11-27 1992-05-28 William K. Brockelsby Highway Vehicle Identification System with High Gain Antenna
DE4231881A1 (de) * 1992-09-24 1994-03-31 Ant Nachrichtentech Anordnung zum Erfassen von Verkehrsgrößen
DE4234548C1 (de) * 1992-10-14 1993-09-30 Ant Nachrichtentech Anordnung zum Erfassen von Verkehrsgrößen
EP0834838A2 (de) * 1994-04-13 1998-04-08 Toyota Jidosha Kabushiki Kaisha Automatisches zum fahrspurungebundenen Fahren geeignetes Abbuchungssystem
WO2000049590A1 (en) * 1999-02-18 2000-08-24 The University Court Of The University Of Edinburgh Vehicle detector and classifier
WO2000058927A1 (en) * 1999-03-31 2000-10-05 Diamond Consulting Services Limited Loop sensing apparatus for traffic detection
JP2000289617A (ja) * 1999-04-09 2000-10-17 Nippon Signal Co Ltd:The 車両用送受信装置及び車両用情報伝送装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13 5 February 2001 (2001-02-05) *

Also Published As

Publication number Publication date
FR2838566A1 (fr) 2003-10-17
FR2838566B1 (fr) 2006-04-28

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