EP1526492B1 - Verfahren und Vorrichtung zur Identifikation eines sich bewegenden Fahrzeugs - Google Patents

Verfahren und Vorrichtung zur Identifikation eines sich bewegenden Fahrzeugs Download PDF

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Publication number
EP1526492B1
EP1526492B1 EP04292386A EP04292386A EP1526492B1 EP 1526492 B1 EP1526492 B1 EP 1526492B1 EP 04292386 A EP04292386 A EP 04292386A EP 04292386 A EP04292386 A EP 04292386A EP 1526492 B1 EP1526492 B1 EP 1526492B1
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Prior art keywords
image
vehicle
fraction
images
improved
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EP04292386A
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English (en)
French (fr)
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EP1526492A1 (de
Inventor
Georges Lavoipierre
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Idemia Identity and Security France SAS
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Sagem Defense Securite SA
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    • 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
    • G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
    • G08G1/054—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed photographing overspeeding vehicles
    • 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
    • G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules

Definitions

  • the present invention relates to the field of identification of a vehicle traveling on a road, or the like.
  • This identification is particularly implemented in the field of controlling traffic conditions, and mainly the speed of motor vehicles.
  • the identification of a vehicle generally includes at least the identification of the registration number of the vehicle. Depending on the type of control carried out, it may also include a number of additional elements relating to the identification of particular features of said vehicle or to its occupants, generally relating to offenses committed by the driver or the passengers, for example speeding, non-respect of inter-distance, absence of safety belt, use of a mobile phone by the driver etc.
  • the detection of infractions can be done using devices such as a radar, a laser or a pair of pneumatic sensors in the case of speed control or interdistance.
  • a camera is triggered after detection of the offense, to provide an image of the vehicle to read the license plate and see the face of the driver.
  • the most common use is for an operator, for example a policeman, to take a photograph of the vehicle practically from the front or at a low incidence.
  • the document FR 2 797 081 describes a method and a device for identifying a motor vehicle registered, according to which two photographs are taken successively, one with a powerful flash of light to obtain a good image of the driver's face through the windshield glass, the other with a less powerful flash of flash to obtain a good image of the license plate (even with a retro-reflective license plate). Identification of the registration number is thus carried out using a specific photo, another photo for identifying the driver's face.
  • Document FR 2 678 412 describes a method for monitoring and photographing a vehicle, according to which the use of a camera and a camera having the same optical axis is combined.
  • the operator uses the images provided by the camera to adjust the orientation of the camera and camera so that the photographed vehicle is centered on the image. Thanks to the combination of the camera and the camera, the aiming is facilitated, which makes it possible to obtain the desired image on the picture. And in case of subsequent challenge of the photo for example, because of a license plate not completely in the video, the video tape can be viewed and provide the missing elements. This nonetheless requires having an art of photos and secondly of the video tape.
  • the document WO 01 91353 (Redflex Traffic System) describes a traffic monitoring system making it possible to take four pictures of the same vehicle associated with data such as time and speed: two of the scene, one of the driver and one of the license plate. They undergo digital processing to compress the images of the driver and the plate. Areas of interest of these two images can be further processed by a person during a step of zoom verification, adjustments of the contrasts and intensities, to extract zoomed images used thereafter.
  • systematization of the controls leads to the generalization of the automation of the control and identification systems, without the presence of operators, particularly for the framing of the vehicle's photograph.
  • the control can be exercised on a single condition of circulation or on several conditions simultaneously.
  • traffic conditions include the speed of a vehicle, the distance between vehicles, the crossing of traffic lights, the wearing of the belt, the use of a mobile phone by the driver, etc.
  • the corresponding offenses are the failure to comply with legal speed or interdistance between vehicles, the absence of the wearing of a belt, the holding of a mobile phone, etc.
  • the present invention aims to provide a method and a device for identifying a vehicle moving on a predetermined path that are able to give satisfaction in the presence of the constraints mentioned above.
  • the method according to the invention proposes a technique for identifying the registration of a vehicle that can be performed automatically, without the intervention of an operator to frame the photo of the license plate constituting one of the parts a statement of offense, regardless of the offense, and allowing to significantly reduce the number of unusable photos that were terminated with prior art techniques.
  • the image capture takes place at a fixed angle with respect to said trajectory. In a variant, it can take place under several fixed angles, when several means of capture, for example, several cameras are used
  • the aforesaid digital processing is accompanied by a recognition step of the license plate and / or characters on the representation of the license plate, which automates further vehicle identification processing.
  • some of the plurality of images showing the front face of the vehicle to further extract at least a second image or two-dimensional image fraction improved with the representation of at least the face of the driver. And in the case where an offense has been found in the vehicle traffic conditions on said predetermined trajectory, then the above-mentioned second image or fraction of an improved two-dimensional image is selected to associate it with a statement of the infringement.
  • the second or improved two-dimensional image fraction provides a representation of all or part of the vehicle windshield and what appears through it. This makes it possible to highlight various offenses relating to the occupants of the vehicle.
  • At least one third image or two-dimensional enhanced image fraction can be extracted with a representation of at least one zone associated with a recognizable infringement. And in the case where a violation has been found in the vehicle traffic conditions on said predetermined trajectory, selecting the aforesaid third image or fractional two-dimensional image improved to associate with the finding of the offense. Again, this automatically allows to have a statement of offense presenting all the evidence necessary to highlight the offenses committed.
  • the selection of an improved two-dimensional image or fraction of image is placed under the control of a statement of offense (in particular speeding, insufficient interval with the previous vehicle) obtained independently of the above-mentioned capture.
  • a statement of offense in particular speeding, insufficient interval with the previous vehicle
  • the speed violation is for example detected by a radar, while the image capture can be done by an independent camera.
  • the selection of an improved two-dimensional image or image fraction is dependent on a statement of offense made on the improved two-dimensional image itself (failure to wear the seatbelt , held in hand of a mobile phone, etc., which can be detected by image processing means made on the plurality of captured images or on the image or fraction of improved image obtained).
  • the method it is possible to capture the plurality of successive images of the vehicle from a remote location, in height and / or laterally, with respect to the axis of said path of movement of the vehicle. This capture can be carried out for example from a bridge overlooking the traffic lanes. In such a case, it is possible, during the digital processing of the plurality of images, to perform at least partial rectification of the improved two-dimensional images or image fractions.
  • a radar 1 comprising a radar antenna 2 installed at the edge of a road 3 and controlled by a radar control unit 4.
  • the radar 1 is for example a radar adapted to perform speed checks.
  • the radar is associated with a detection field corresponding to a beam of waves emitted by the antenna 2 and delimited by an upstream ray 5 and a downstream ray 6.
  • the radar 1 is connected by a link 7 to a device 8 for identifying moving vehicles arranged according to the invention.
  • the control unit 4 of the radar 1 transmits on this link signals intended for a control box 9 of the device 8.
  • the device 8 comprises a digital video camera 10.
  • This camera 10 is for example of the type CCD ("Charge-Coupled Device") or CMOS ("Complementary Metal-Oxide Semiconductor").
  • the image capture angle ⁇ of the camera 10 relative to the road 3 is fixed.
  • the camera 10 is adapted to capture successive images of the field of view, for example for an image every 20 milliseconds, and this on reception of a control of shots from the control box 9.
  • the device 8 comprises an image processing module 11 operating on images captured by the camera 10 and delivering images or fractions of improved images, obtained from the images taken by the camera 10.
  • the device 8 further comprises a memory 12 for storing images.
  • the device 8 also comprises a transmission block 13, which transmits data on a digital data transmission channel 14, intended for a national data exploitation center 15.
  • the communication link 14 may be dedicated, for example an optical fiber, or a radio link, or it may be a GPRS type public radio link, allowing a reduction in transmission and installation costs.
  • the waves reflected by a vehicle 16 traveling on the road 3 are picked up by the antenna 2 as soon as the vehicle reaches the position 16a shown in dashed lines in the single figure, in which the vehicle crosses the line corresponding to the upstream radius 5. These waves reflected are analyzed in the control unit 4, which calculates the speed of the vehicle 16, and compares this calculated speed with a predefined maximum authorized speed.
  • the vehicle 16 As soon as the vehicle 16 enters the detection field of the radar 1, the latter sends a signal to the control box 9 of the device 8, causing the sending from the housing 9 to the camera 10 of a command of shots.
  • the camera 10 Upon receipt of this command, either from the entry of the vehicle 16 into the detection field of the radar, the camera 10 captures a plurality of images of the vehicle during its progression along the road 3, for example about ten images. All of these images are stored in the memory 12.
  • the radar 1 sends to the control box 9 of the device 8 a signal indicating the infringement of speed V.
  • the housing 9 transmits an order identification to the vehicle / driver identification sub-module 11a of the image processing module 11.
  • the identification sub-module 11a Upon receipt of this command, the identification sub-module 11a applies digital processing to all the images E stored in the memory 12 and recorded from the vehicle entrance 16 in the detection field. This treatment makes it possible first of all to isolate the zone corresponding to the license plate on these images, by referring to a base, stored in memory 12, of standard plate models. Then, it carries out a processing by association of data coming from different images of the set E, making it possible to improve the resolution of the zone corresponding to the plate and to extract an image fraction F plate , of this zone representing the license plate with optimized resolution.
  • a character recognition program can then be applied to the F- plate image fraction.
  • This character recognition program provides N number of license estimated from the fraction F image plate, with a confidence score associated P N.
  • the submodule 11a applies a digital treatment to all the images E making it possible first of all to isolate the driver's face from the vehicle 16 and to evaluate its size (in a other embodiment, it can isolate the representation of the windshield of the vehicle and what appears through it). It thus determines an image I among the considered image set on which the driver's face is most apparent (the face is reproduced with the maximum number of pixels). Then he applies on the area of the image I corresponding to the isolated face, a treatment to improve the resolution of this area, by association of data from several images of the set E. It thus extracts a fraction of image F face representing the driver's face, more clearly than in image I.
  • the techniques for increasing the resolution are, for example, hyper-resolution techniques of the type described in document FR 2 812 157.
  • the set of digital data corresponding to the image I, to the estimated registration number N with the associated confidence score P N , to the image fractions F plate and F face , and to the speed violation V are then selected and assembled, then delivered by the control box 9 to the transmission block 13.
  • the transmission block 13 compresses, formats the data, then sends, via the communication link 14, the operating center 15.
  • the following administrative operations are performed for example: editing and recording of the statement of offense including the data sent by the transmission block 13, calculation of the amount of the fine corresponding to the offense committed by the driver of the vehicle 16, determining the coordinates of the driver from the estimated number of the license plate and sending the statement of offense.
  • the image processing module 11 further comprises a sub-module 11b for determining the absence of the belt port.
  • This submodule 11b systematically applies to the images of a set E relative to any vehicle 16 'entering the detection field of the radar 1, a digital processing for isolating the zone corresponding to the safety belt and determining the presence or absence of this belt around the driver's body. This determination is for example carried out using standard models (possibly obtained by learning) stored in the memory 12.
  • the sub-module 11b determines the image in the set E on which the bust of the driver is most visible (zone of the belt corresponding to a number maximum of pixels), then applies a processing on this zone, by association of successive images in order to improve the resolution. He gets a fraction of the image F girded .
  • the module 11b can first extract the image fraction F girded , and then determine on this improved fraction of images, the presence or absence of this belt around the body of the driver so as to highlight an offense.
  • control unit 9 supplies to the transmission block 13 the data corresponding to the image I, to the estimated registration number N with the associated confidence score P N , to the image fractions F plate , F face and F int relating to the vehicle 16 '.
  • the speed violation data V is provided in addition to block 13.
  • the module 11 of the device 8 may comprise additional submodules adapted to perform digital processing on images of a set E in order to extract images or fractions thereof.
  • images representing various types of offenses for example, the presence in the hand of a driver of a mobile phone, the distance between two successive vehicles, or any offense that may be detected from the images provided, in particular which is likely to appear through the windshield of a vehicle.
  • the detection of the presence of an infringement can be carried out from the set of images E, either directly on one of these images, or on images or fractions of improved images provided, for example, by the processing module 11, as in the case of the detection of an offense due to the absence of a belt. It may in another embodiment be carried out independently of the set of images E, for example by equipment external to the device 8 according to the invention, by a radar as in the case of the speed described above, or by GSM transmit detectors, position or distance detectors, etc.
  • the digital processing on a set of images E relating to a vehicle 16 are performed by the vehicle / driver identification sub-module 11a after finding an offense.
  • this processing is carried out independently, so as not to cumulate the necessary times, on the one hand, to the determination of the infringement, on the other hand to the vehicle / driver identification, the selection of data to be associated with the statement of offense in case of infringement then being performed by the control box 9 of the device 8 according to the invention.
  • the camera in relation to the road traveled by the moving vehicle can be positioned in a variety of ways. When it is offset in height (for example placed on a bridge overlooking the road) or laterally, the digital processing performed may further comprise operations intended to at least partially correct the images or fractions of two-dimensional images obtained according to the invention . These are then more exploitable later.
  • a method and a device according to the invention thus allow the automation of the identification of a vehicle, and the identification of various infringements, by providing the corresponding two-dimensional representations desired.
  • the rate of non-exploitability of the data provided is very low, because it seeks to optimize the images taken by the camera. Treatments can be done in near real time.
  • the number of data transmitted by way of transmission is already limited (by the selection of the relevant image fractions) and can be further reduced by compression techniques.
  • the digital data sent on the transmission channel or channels of very small volume and good quality are already limited (by the selection of the relevant image fractions) and can be further reduced by compression techniques.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Image Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Image Analysis (AREA)

Claims (19)

  1. Verfahren zur Identifizierung eines Fahrzeugs (16; 16'), welches sich auf einem vorbestimmten Pfad (3) bewegt, umfassend die Schritte gemäß denen:
    - eine Mehrzahl (E) von aufeinanderfolgenden Bildern des sich auf dem Pfad bewegenden Fahrzeugs erfasst wird, welche unter einem Winkel (α) derart aufgenommen sind, dass wenigstens gewisse Bilder eine ein Kennzeichenschild aufweisende Außenseite des Fahrzeugs (16; 16') erscheinen lassen;
    - die Mehrzahl von Bildern gespeichert wird;
    dadurch gekennzeichnet, dass das Verfahren folgende Schritte umfasst:
    - Kombinieren der Mehrzahl der Bilder durch eine digitale Verarbeitung, um wenigstens ein erstes verbessertes, zweidimensionales Bild oder einen ersten verbesserten, zweidimensionalen Bildausschnitt (Fplaue) zu extrahieren mit der Darstellung wenigstens des Kennzeichenschildes des Fahrzeugs; und
    - im Falle des Feststellens eines Verstoßes des Fahrzeugs unter den Verkehrsbedingungen auf dem vorbestimmten Pfad, Auswählen des ersten verbesserten, zweidimensionalen Bildes oder Bildausschnitts (Fplaque) und Zuordnen zu einer Verstoßfeststellung.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Aufnahme der Bilder unter einen festen Winkel (α) bezogen auf den Pafd erfolgt.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die digitale Verarbeitung mit einem Schritt der Zeichenerkennung auf der Darstellung des Kennzeichenschildes einhergeht.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass wenigstens gewisse der Mehrzahl von Bildern die Vorderseite des Fahrzeugs erscheinen lassen und dass ferner wenigstens ein zweites verbessertes, zweidimensionales Bild oder ein zweiter verbesserter, zweidimensionaler Bildausschnitt (Fvisage) mit der Darstellung wenigstens des Gesichts des Fahrers extrahiert wird; und dass,
    falls ein Verstoß des Fahrzeugs unter den Verkehrsbedingungen auf dem vorbestimmten Pfad festgestellt worden ist, das zweite verbesserte, zweidimensionale Bild oder der zweite verbesserte, zweidimensionale Bildausschnitt einer Verstoßfeststellung zugeordnet wird.
  5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass das zweite verbesserte, zweidimensionale Bild oder der zweite verbesserte, zweidimensionale Bildausschnitt eine Darstellung der kompletten Windschutzscheibe des Fahrzeugs oder eines Teils von dieser ist und von demjenigen, der durch sie zu sehen ist.
  6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass ferner wenigstens ein drittes verbessertes, zweidimensionales Bild oder ein dritter verbesserter, zweidimensionaler Bildausschnitt (Fceint) extrahiert wird mit einer Darstellung wenigstens eines Bereichs, der einem feststellbaren Verstoß zugeordnet ist; und dass,
    falls ein Verstoß des Fahrzeugs unter den Verkehrsbedingungen auf dem vorbestimmten Pfad festgestellt worden ist, das dritte verbesserte, zweidimensionale Bild oder der dritte verbesserte, zweidimensionale Bildausschnitt ausgewählt und einer Verstoßfeststellung zugeordnet wird.
  7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Auswahl eines verbesserten, zweidimensionalen Bildes oder Bildausschnitts in Abhängigkeit von einer Verstoßfeststellung plaziert wird, welche unabhängig von der Erfassung der Bilder erhalten wird.
  8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Auswahl eines verbesserten, zweidimensionalen Bildes oder Bildausschnitts in Abhängigkeit von einer Verstoßfeststellung plaziert wird, die auf dem verbesserten zweidimensionalen Bild oder Bildausschnitt selbst gemacht worden ist.
  9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass im Falle eines festgestellten Verstoßes wenigstens die Daten des ersten verbesserten, zweidimensionalen Bildes oder Bildausschnitts über einen Kanal zur Übertragung von digitalen Daten übertragen werden.
  10. Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Mehrzahl von aufeinanderfolgenden Bildern des Fahrzeugs von einem bezogen auf die Achse des Bewegungspfads des Fahrzeugs in der Höhe oder seitlich verschobenen Ort aufgenommen wird und dass bei der digitalen Verarbeitung der Mehrzahl von Bildern eine wenigstens teilweise Entzerrung der verbesserten, zweidimensionalen Bilder oder Bildausschnitte erfolgt.
  11. Einrichtung (8) zur Identifizierung eines Fahrzeugs (16; 16'), welches sich auf einem vorbestimmten Pfad (3) bewegt, umfassend:
    - Mittel (10) zum Aufnehmen einer Mehrzahl von aufeinanderfolgenden Bildern (E) des sich auf dem Pfad bewegenden Fahrzeugs unter einem Winkel (α) derart, dass wenigstens gewisse Bilder eine ein Kennzeichenschild aufweisende Außenseite des Fahrzeugs erscheinen lassen,
    - Mittel (12) zum Speichern der Mehrzahl von Bildern;
    dadurch gekennzeichnet, dass die Einrichtung ferner umfasst:
    - Mittel (11) zur digitalen Verarbeitung, um die Mehrzahl der Bilder zu kombinieren und um wenigstens ein erstes verbessertes, zweidimensionales Bild oder einen ersten verbesserten, zweidimensionalen Bildausschnitt (Fplaque) mit der Darstellung wenigstens des Kennziechenschildes des Fahrzeugs zu extrahieren; und
    - Mittel (9) zur Auswahl und Zuordnung eines Verstoßes zu dem ersten verbesserten, zweidimensionalen Bild oder Bildausschnitt, falls ein Verstoß des Fahrzeugs unter den Verkehrsbedingungen des vorbestimmten Pfads festgestellt worden ist.
  12. Einrichtung nach Anspruch 11, dadurch gekennzeichnet, dass die Mittel (10) zum Aufnehmen der Bilder die Bilder unter einem bezogen auf den Pfad (3) festen Winkel (α) aufnehmen.
  13. Einrichtung nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass die Mittel (11a) zur digitalen Verarbeitung Mittel zur Zeichenerekennung auf der Darstellung des Kennzeichenschildes umfassen.
  14. Einrichtung nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass sie ferner Mittel (11a) zum Extrahieren wenigstens eines zweiten verbesserten, zweidimensionalen Bildes oder Bildausschnitts mit wenigstens einer Darstellung des Gesichts des Fahrers umfasst, wobei wenigstens gewisse Bilder der Mehrzahl von Bildern die Vorderseite des Fahrzeugs erscheinen lassen; und
    Mittel (9) zur Auswahl und Zuordnung einer Verstoßfeststellung zu dem zweiten verbesserten, zweidimensionalen Bild oder Bildausschnitt, falls ein Verstoß des Fahrzeugs unter den Verkehrsbedingungen des vorbestimmten Pfads festgestellt worden ist.
  15. Einrichtung nach Anspruch 14, dadurch gekennzeichnet, dass die Mittel (11a) zum Extrahieren des wenigstens einen zweiten verbesserten, zweidimensionalen Bildes oder Bildausschnitts eine Darstellung der gesamten Windschutzscheibe des Fahrzeugs oder eines Teils von dieser und von demjenigen geben, der durch sie zu sehen ist.
  16. Einrichtung nach einem der Ansprüche 11 bis 15, dadurch gekennzeichnet, dass sie Mittel (11b) zum Extrahieren von wenigstens einem dritten verbesserten, zweidimensionalen Bild oder Bildausschnitt mit einer Darstellung wenigstens eines Bereichs, der einem feststellbaren Verstoß zugeordnet ist, umfasst; und
    Mittel (9) zur Auswahl und Zuordnung einer Verstoßfeststellung zu dem dritten verbesserten, zweidimensionalen Bild oder Bildausschnitt, falls ein Verstoß des Fahrzeugs unter den Verkehrsbedingungen des vorbestimmten Pfads festgestellt worden ist.
  17. Einrichtung nach einem der Ansprüche 11 bis 16, dadurch gekennzeichnet, dass die Mittel (11a) zur Auswahl eines verbesserten zweidimensionalen Bildes oder Bildausschnitts in Abhängigkeit von den Mitteln zur Verstoßfeststellung platziert sind, welche unabhängig von den Mitteln zur Aufnahme der Bilder sind.
  18. Einrichtung nach einem der Ansprüche 11 bis 17, dadurch gekennzeichnet, dass wenigstens gewisse Mittel (11b) zur Auswahl eines verbesserten, zweidimensionalen Bildes oder Bildausschnitts in Abhängigkeit von den Mitteln zur Verstoßfeststellung platziert sind, welche selbst für die Verarbeitung des verbesserten, zweidimensionalen Bildes oder Bildausschnitts geeignet sind.
  19. Einrichtung nach einem der Ansprüche 11 bis 18, dadurch gekennzeichnet, dass sie ferner Übertragungsmittel (13) umfasst, welche funktional mit einem Übertragungskanal (14) für digitale Daten verbunden sind und dafür geeignet sind, im Falle einer Verstoßfeststellung wenigstens die digitalen Daten des ersten verbesserten zweidimensionalen Bildes oder Bildausschnitts zu übertragen.
EP04292386A 2003-10-22 2004-10-07 Verfahren und Vorrichtung zur Identifikation eines sich bewegenden Fahrzeugs Expired - Lifetime EP1526492B1 (de)

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FR0312331A FR2861486B1 (fr) 2003-10-22 2003-10-22 Procede et dispositif d'identification d'un vechicule en deplacement
FR0312331 2003-10-22

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EP1526492B1 true EP1526492B1 (de) 2006-07-19

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AT (1) ATE333689T1 (de)
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DE10058765A1 (de) * 2000-11-27 2002-06-06 Trend Network Ag Verkehrsüberwachungsvorrichtung
DE20102989U1 (de) * 2001-02-20 2001-06-13 Bruder, Kai-Achim, 85395 Wolfersdorf Stationäres System zur Ermittlung und Verfolgung von Geschwindigkeitsüberschreitungen im Straßenverkehr mit zentraler Datenerfassung über Mobilfunknetze

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DE602004001560D1 (de) 2006-08-31
FR2861486B1 (fr) 2007-01-05
DE602004001560T2 (de) 2007-06-28
ATE333689T1 (de) 2006-08-15
EP1526492A1 (de) 2005-04-27
FR2861486A1 (fr) 2005-04-29

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