DE4138050A1 - Traffic information indication identification system for road vehicle - has on board active transponder and cooperating passive transponder adjacent traffic information indication - Google Patents

Traffic information indication identification system for road vehicle - has on board active transponder and cooperating passive transponder adjacent traffic information indication

Info

Publication number
DE4138050A1
DE4138050A1 DE4138050A DE4138050A DE4138050A1 DE 4138050 A1 DE4138050 A1 DE 4138050A1 DE 4138050 A DE4138050 A DE 4138050A DE 4138050 A DE4138050 A DE 4138050A DE 4138050 A1 DE4138050 A1 DE 4138050A1
Authority
DE
Germany
Prior art keywords
transponder
traffic information
identification system
information indication
passive transponder
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.)
Ceased
Application number
DE4138050A
Other languages
German (de)
Inventor
August Kullnigg
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.)
TDK Electronics AG
Original Assignee
Siemens Matsushita Components GmbH and Co KG
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 Siemens Matsushita Components GmbH and Co KG filed Critical Siemens Matsushita Components GmbH and Co KG
Priority to DE4138050A priority Critical patent/DE4138050A1/en
Priority to DE4142091A priority patent/DE4142091A1/en
Publication of DE4138050A1 publication Critical patent/DE4138050A1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
    • G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle 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
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
    • G01S13/755—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using delay lines, e.g. acoustic delay lines
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
    • G08G1/096725—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information generates an automatic action on the vehicle control
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096783—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element

Abstract

The identification system uses an active transponder (12) on board a vehicle (11). A passive transponder (14) associated with traffic information indication, receives an interrogation signal provided by the active transponder (12) and sends a coded signal back to the latter. Pref. the vehicle has an on-board traffic information display, controlled by the traffic information received from the passive transponder. Pref. the passive transponder provides the required vehicle velocity, used within the vehicle for a computer-controlled velocity correction. USE/ADVANTAGE - For updating correct vehicle velocity as vehicle travels along road. Makes more use of vehicle information system.

Description

Die vorliegende Erfindung betrifft ein Identifikationssystem zur Verkehrsinformationserkennung nach dem Oberbegriff des Pa­ tentanspruches 1.The present invention relates to an identification system for traffic information recognition according to the preamble of Pa claim 1.

Es sind generell Abfragesysteme bekannt geworden, mit denen Identifizierungen durchgeführt werden können. Ein derartiges System umfaßt einen Interogator bzw. einen aktiven Transpon­ der zum Aussenden eines insbesondere hochfrequenten Abfrage­ signals sowie zum Empfang und zum Decodieren eines Antwort­ signals. Das Abfragesystem wird von einem passiven Transpon­ der aufgenommen, in dem eine Codierung dieses Signals erfolgt. Das vom aktiven Transponder empfangene codierte Signal wird decodiert und zu Identifizierungszwecken ausgenutzt. Ein der­ artiges System ist beispielsweise aus der DE-PS 34 38 051 bzw. der US-PS 46 25 208 bekannt.Query systems with which Identification can be carried out. Such a thing System includes an interogator or an active transpon the one for sending out a particularly high-frequency query signals and for receiving and decoding a response signals. The query system is a passive transpon the recorded in which this signal is encoded. The coded signal received by the active transponder is decoded and used for identification purposes. One of the Like system is for example from DE-PS 34 38 051 or the US-PS 46 25 208 known.

Der passive Transponder enthält neben dem Empfänger für das vom aktiven Transponder ausgesandte Abfragesignal eine mit akusti­ schen Oberflächenwellen arbeitende Reflektoranordnung. In einer derartigen Anordnung ist zunächst mindestens ein Interdigital­ wandler zur Umsetzung des elektrischen Abfragesignals in eine akustische Oberflächenwelle sowie zur Rückumsetzung einer sol­ chen Welle in ein elektrisches Signal vorgesehen, das zum akti­ ven Transponder zurückgesendet wird. Weiterhin enthält die An­ ordnung mehrere an vorgegebenen Stellen im Weg der akustischen Oberflächenwelle angeordnete Reflektoren. Die Laufzeiten der akustischen Oberflächenwelle zwischen dem Interdigitalwandler und den Reflektoren führt zu einer Impuls-Codierung des vom In­ terdigitalwandler abgegebenen elektrischen Signals.The passive transponder contains the receiver for the from active transponder sent query signal with acousti surface reflector arrangement working. In a such an arrangement is at least one interdigital converter for converting the electrical query signal into a surface acoustic wave as well as for the conversion of a sol Chen wave provided in an electrical signal that the acti ven transponder is sent back. Furthermore, the An order several at given points in the way of acoustic Surface wave arranged reflectors. The terms of the surface acoustic wave between the interdigital transducer and the reflectors leads to a pulse coding of the from terdigital converter output electrical signal.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein der­ artiges System für eine Verkehrsinformationserkennung nutzbar zu machen. The present invention has for its object one of like system for traffic information detection close.  

Diese Aufgabe wird bei einem Identifikationssystem der eingangs genannten Art erfindungsgemäß durch die Merkmale des kennzeich­ nenden Teils des Patentanspruches 1 gelöst.This task is the beginning of an identification system mentioned type according to the invention by the features of the character nenden part of claim 1 solved.

Weiterbildungen der Erfindung sind Gegenstand von Unteransprü­ chen.Further developments of the invention are the subject of dependent claims chen.

Die Erfindung wird im folgenden anhand von in den Figuren der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigtThe invention is described below with reference to the figures of the Drawing illustrated embodiments explained in more detail. It shows

Fig. 1 eine schematische Darstellung eines Straßenverlaufs mit einem sich darauf bewegenden Kraftfahrzeug sowie einem Verkehrszeichen im Straßenverlauf, wobei auf dem Kraft­ fahrzeug und dem Verkehrszeichen ein erfindungsgemäßes Identifikationssystem vorgesehen ist; und Figure 1 is a schematic representation of a road course with a motor vehicle moving thereon and a traffic sign in the course of the road, an identification system according to the invention being provided on the motor vehicle and the traffic sign; and

Fig. 2 eine schematische Darstellung eines Armaturenbretts des Kraftfahrzeugs nach Fig. 1 mit einer auf diesen vorge­ sehenen Anzeige-Einrichtung zur Anzeige von durch das erfindungsgemäße Identifikationssystem gelieferten In­ formationen. Fig. 2 is a schematic representation of a dashboard of the motor vehicle according to Fig. 1 with a provided on this display device for displaying information supplied by the identification system according to the invention.

Gemäß der schematischen Darstellung nach Fig. 1 bewegt sich auf einer Straße 10 ein Kraftfahrzeug 11, in dem ein schema­ tisch dargestellter aktiver Transponder 12 eines erfindungsge­ mäßen Identifikationssystems vorgesehen ist. Im Verlauf der Straße 10 steht ein Verkehrszeichen 13, das im vorliegenden Beispiel anzeigt, daß in einem Abstand von 100 m von diesem Verkehrszeichen an, eine Geschwindigkeit von 80 km/h gilt. Auf diesem Verkehrszeichen 13 ist ein passiver Transponder 14 der oben erläuterten Art vorgesehen. Der im Kraftfahrzeug 11 ange­ ordnete aktive Transponder 12 sendet ein Abfragesignal aus, das im am Verkehrszeichen 13 vorgesehenen passiven Transponder der­ art codiert wird, daß in dieser Codierung die Information über den angegebenen Abstand von 100 m vom Verkehrszeichen und die ab da geltende Geschwindigkeitsbegrenzung von 80 km/h steckt. Der Signalverlauf vom aktiven Transponder 12 zum passiven Tran­ sponder 14 und zurück ist in Fig. 1 schematisch durch gestri­ chelte Linien 15 angedeutet. According to the schematic illustration of Fig. 1 travels on a road 10, an automobile 11 in which a schematically illustrated active transponder 12 is a erfindungsge MAESSEN identification system is provided. In the course of the road 10 there is a traffic sign 13 which, in the present example, indicates that a speed of 80 km / h applies at a distance of 100 m from this traffic sign. A passive transponder 14 of the type explained above is provided on this traffic sign 13 . The active transponder 12 arranged in the motor vehicle 11 sends out an interrogation signal which is coded in the passive transponder provided on the traffic sign 13 in such a way that in this coding the information about the specified distance of 100 m from the traffic sign and the speed limit applicable from there of 80 km / h. The waveform from the active transponder 12 to the passive transponder 14 and back is indicated schematically in Fig. 1 by dashed lines 15 .

Gemäß Fig. 2 ist auf einem Armaturenbrett 20 des Kraftfahr­ zeugs 11 nach Fig. 1 eine Anzeige-Einrichtung 21 vorgesehen, mittels der die durch das Identifikationssystem 12, 14 nach Fig. 1 gewonnene Information angezeigt wird. Bei dieser An­ zeige-Einrichtung 21 handelt es sich vorzugsweise um eine LCD- Einrichtung (Flüssigkristall-Anzeige). Vorzugsweise handelt es sich dabei um eine Einrichtung, bei der die Information auf ei­ nem Schirm mehrfarbig dargestellt werden kann.Referring to FIG. 2, a display device 21 is mounted on a dashboard 20 of the motor vehicle toy 11 of Fig. 1 provided by means of the information obtained by the identification system 12, 14 of FIG. 1 is displayed. This display device 21 is preferably an LCD device (liquid crystal display). This is preferably a device in which the information can be displayed in multi-color on a screen.

In Fig. 2 sind weiterhin ein Tachometer 24 sowie ein Drehzahl­ messer 25 dargestellt.In Fig. 2, a speedometer 24 and a speed meter 25 are also shown.

Das Informations-Verarbeitungssystem für die durch den aktiven Transponder 12 nach Fig. 1 gewonnene Information ist zweck­ mäßigerweise so ausgebildet, daß auf der Anzeige-Einrichtung 22 das Verkehrszeichen direkt dargestellt werden kann. Es entsteht dann in einem Anzeigefeld 22 ein dem Verkehrszeichen 13 nach Fig. 1 entsprechendes Bild. Die über den aktiven Transponder 12 nach Fig. 1 gewonnene Information kann weiterhin auch di­ rekt dazu ausgenutzt werden, um die Geschwindigkeit des Fahr­ zeugs automatisch auf den durch das Verkehrszeichen angegebe­ nen Wert einzustellen.The information processing system for the information obtained by the active transponder 12 according to FIG. 1 is expediently designed such that the traffic sign can be displayed directly on the display device 22 . An image corresponding to the traffic sign 13 according to FIG. 1 then arises in a display field 22 . The information obtained via the active transponder 12 according to FIG. 1 can also be used directly to automatically set the speed of the vehicle to the value indicated by the traffic sign.

Im Rahmen der Erfindung muß es sich nicht unbedingt nur um die Erkennung der Information von festen Verkehrszeichen handeln. Passive Transponder des erfindungsgemäßen Identifikationssystems können beispielsweise auch so ausgebildet sein, daß sich ändern­ de Verkehrsbedingungen, beispielsweise bei Gefahr von Staus in Stoßzeiten verarbeitet und angezeigt werden können. Weiterhin ist es auch möglich, Ortserkennungen durchzuführen, wobei der Standort eines Fahrzeugs auf der Anzeige-Einrichtung 21 darge­ stellt werden kann. Es ist dabei möglich, beispielsweise Teile eines Stadtplans auf der Anzeige-Einrichtung visuell darzustel­ len und in dieser Darstellung eine Markierung anzuzeigen, die den Standort des Kraftfahrzeugs angibt. Ein derartiger Fall ist in Fig. 2 auf der Anzeige 21 schematisch durch ein Dreiecks­ symbol angedeutet. In the context of the invention, it does not necessarily have to be only the recognition of the information of fixed traffic signs. Passive transponders of the identification system according to the invention can also be designed, for example, in such a way that changing traffic conditions, for example when there is a risk of traffic jams, can be processed and displayed during peak times. Furthermore, it is also possible to carry out location detections, the location of a vehicle being able to be represented on the display device 21 . It is possible, for example, to visually display parts of a city map on the display device and to display a marker in this display which indicates the location of the motor vehicle. Such a case is indicated schematically in FIG. 2 by a triangle symbol on the display 21 .

Das erfindungsgemäße Identifikationssystem gestaltet sich in vorteilhafter Weise einfach, da die Spannungsversorgung für einen aktiven Transponder in einem Kraftfahrzeug durch dessen Batterie gewährleistet werden kann, während für den passiven Transponder keine Spannungsversorgung erforderlich ist, weil seine Logik durch passive Oberflächenwellen-Komponenten gebil­ det wird.The identification system according to the invention is designed in advantageously simple because the power supply for an active transponder in a motor vehicle by the Battery can be guaranteed while for the passive Transponder no power supply is required because its logic is formed by passive surface wave components det.

Claims (6)

1. Identifikationssystem zur Verkehrsinformationserkennung in Kraftfahrzeugen (11) mit einem aktiven und einem passiven Tran­ sponder (12, 14), bei dem der aktive Transponder (12) ein Abfra­ gesignal aussendet sowie ein Signal vom passiven Transponder (14) empfängt und decodiert und der passive Transponder (14) das Abfragesignal vom aktiven Transponder (12) empfängt und co­ diert, sowie das codierte Signal zum aktiven Transponder (12) zurücksendet, dadurch gekennzeichnet, daß der aktive Transponder (12) in einem Kraftfahrzeug (11) und der passive Transponder (14) an vorgegebenen Stellen von Verkehrs­ verläufen vorgesehen ist.1. Identification system for traffic information detection in motor vehicles ( 11 ) with an active and a passive transponder ( 12 , 14 ), in which the active transponder ( 12 ) sends an interrogation signal and receives and decodes a signal from the passive transponder ( 14 ) and the Passive transponder ( 14 ) receives and co dates the interrogation signal from the active transponder ( 12 ) and sends the coded signal back to the active transponder ( 12 ), characterized in that the active transponder ( 12 ) in a motor vehicle ( 11 ) and the passive transponder ( 14 ) is provided at predetermined points in the course of traffic. 2. Identifikationssystem nach Anspruch 1, dadurch gekennzeichnet, daß der passive Transponder (14) im Bereich eines Verkehrszeichens (13) vorgesehen ist.2. Identification system according to claim 1, characterized in that the passive transponder ( 14 ) is provided in the region of a traffic sign ( 13 ). 3. Identifikationssystem nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß im Kraftfahrzeug (11) eine Anzeige-Einrichtung (21) für die vom passiven Transponder (14) kommende Verkehrsinformation vorgese­ hen ist.3. Identification system according to claim 1 and / or 2, characterized in that in the motor vehicle ( 11 ) a display device ( 21 ) for the traffic information coming from the passive transponder ( 14 ) is hen hen. 4. Identifikationssystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Verkehrsinformation eine Richtgeschwindigkeitsinformation ist und im Kraftfahrzeug (11) eine computergesteuerte Geschwin­ digkeitseinstellung erfolgt.4. Identification system according to one of claims 1 to 3, characterized in that the traffic information is a directional speed information and in the motor vehicle ( 11 ) a computer-controlled speed setting is carried out. 5. Identifikationssystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Verkehrsinformation eine Ortsangabeinformation ist. 5. Identification system according to one of claims 1 to 4, characterized in that the traffic information is location information.   6. Identifikationssystem nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Anzeige-Einrichtung (21) eine LCD-Einrichtung ist.6. Identification system according to one of claims 1 to 5, characterized in that the display device ( 21 ) is an LCD device.
DE4138050A 1991-11-19 1991-11-19 Traffic information indication identification system for road vehicle - has on board active transponder and cooperating passive transponder adjacent traffic information indication Ceased DE4138050A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4138050A DE4138050A1 (en) 1991-11-19 1991-11-19 Traffic information indication identification system for road vehicle - has on board active transponder and cooperating passive transponder adjacent traffic information indication
DE4142091A DE4142091A1 (en) 1991-11-19 1991-12-19 Identification system for reception of traffic information by vehicle - stores encoded information from passive roadside transponder in computer memory for reproduction by dashboard instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4138050A DE4138050A1 (en) 1991-11-19 1991-11-19 Traffic information indication identification system for road vehicle - has on board active transponder and cooperating passive transponder adjacent traffic information indication

Publications (1)

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DE4138050A1 true DE4138050A1 (en) 1993-05-27

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DE4138050A Ceased DE4138050A1 (en) 1991-11-19 1991-11-19 Traffic information indication identification system for road vehicle - has on board active transponder and cooperating passive transponder adjacent traffic information indication

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411125A1 (en) * 1993-04-01 1994-10-13 Man Nutzfahrzeuge Ag Information system
DE4413886C1 (en) * 1994-04-21 1995-04-06 Leica Ag System for detecting (collecting) traffic information in vehicles
DE29619863U1 (en) * 1996-11-15 1997-01-02 Tischer Harald H Dipl Designer Device for limiting the speed of a motor vehicle
WO1998038554A1 (en) * 1997-02-28 1998-09-03 Siemens Aktiengesellschaft Guidance system for a mobile unit and operating method
DE19712722A1 (en) * 1997-03-26 1998-10-01 Maier Hans Juergen Motor vehicle speed adjustment method
DE102004021277B3 (en) * 2004-04-29 2005-08-25 Daimlerchrysler Ag Traffic information system passive transponder, e.g. for carrying road sign information in a format that can be recognized by a vehicle transponder has an attachment element whose design varies dependent on its information content
US7117083B2 (en) * 2004-06-29 2006-10-03 Intel Corporation System and method for enabling wireless traffic message passing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018332A1 (en) * 1979-05-18 1980-11-27 Eigenmann Ludwig METHOD AND SYSTEM ARRANGEMENT FOR COMMUNICATING INFORMATION TO ROAD VEHICLES FOR THE PURPOSES OF ROAD SIGNALING AND MARKING
DE3345707A1 (en) * 1983-12-17 1985-06-27 Brown, Boveri & Cie Ag, 6800 Mannheim Safety device
US4625208A (en) * 1983-06-30 1986-11-25 X-Cyte Inc. Surface acoustic wave passive transponder having acoustic wave reflectors
DE3438053C2 (en) * 1984-10-09 1988-08-11 X-Cyte, Inc., Mountain View, Calif., Us

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018332A1 (en) * 1979-05-18 1980-11-27 Eigenmann Ludwig METHOD AND SYSTEM ARRANGEMENT FOR COMMUNICATING INFORMATION TO ROAD VEHICLES FOR THE PURPOSES OF ROAD SIGNALING AND MARKING
US4625208A (en) * 1983-06-30 1986-11-25 X-Cyte Inc. Surface acoustic wave passive transponder having acoustic wave reflectors
DE3345707A1 (en) * 1983-12-17 1985-06-27 Brown, Boveri & Cie Ag, 6800 Mannheim Safety device
DE3438053C2 (en) * 1984-10-09 1988-08-11 X-Cyte, Inc., Mountain View, Calif., Us

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411125A1 (en) * 1993-04-01 1994-10-13 Man Nutzfahrzeuge Ag Information system
DE4413886C1 (en) * 1994-04-21 1995-04-06 Leica Ag System for detecting (collecting) traffic information in vehicles
WO1995029471A1 (en) * 1994-04-21 1995-11-02 Leica Ag System for traffic information acquisition in vehicles
AU681958B2 (en) * 1994-04-21 1997-09-11 Leica Geosystems Ltd. System for traffic information acquisition in vehicles
US5831551A (en) * 1994-04-21 1998-11-03 Leica Geosystems Ag System for traffic information acquisition in vehicles
DE29619863U1 (en) * 1996-11-15 1997-01-02 Tischer Harald H Dipl Designer Device for limiting the speed of a motor vehicle
WO1998038554A1 (en) * 1997-02-28 1998-09-03 Siemens Aktiengesellschaft Guidance system for a mobile unit and operating method
DE19712722A1 (en) * 1997-03-26 1998-10-01 Maier Hans Juergen Motor vehicle speed adjustment method
DE102004021277B3 (en) * 2004-04-29 2005-08-25 Daimlerchrysler Ag Traffic information system passive transponder, e.g. for carrying road sign information in a format that can be recognized by a vehicle transponder has an attachment element whose design varies dependent on its information content
US7117083B2 (en) * 2004-06-29 2006-10-03 Intel Corporation System and method for enabling wireless traffic message passing

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