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WO1999046613A1 - Appareil de mesure de vitesse - Google Patents

Appareil de mesure de vitesse Download PDF

Info

Publication number
WO1999046613A1
WO1999046613A1 PCT/EP1999/001480 EP9901480W WO9946613A1 WO 1999046613 A1 WO1999046613 A1 WO 1999046613A1 EP 9901480 W EP9901480 W EP 9901480W WO 9946613 A1 WO9946613 A1 WO 9946613A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
speed
image
camera
digital
Prior art date
Application number
PCT/EP1999/001480
Other languages
German (de)
English (en)
Inventor
Hans-Theo Wienand
Original Assignee
Wienand Hans Theo
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 Wienand Hans Theo filed Critical Wienand Hans Theo
Priority to AU29325/99A priority Critical patent/AU2932599A/en
Publication of WO1999046613A1 publication Critical patent/WO1999046613A1/fr

Links

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
    • G08G1/052—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
    • 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
    • G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
    • G01S13/867—Combination of radar systems with cameras
    • 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
    • G01S13/92—Radar or analogous systems specially adapted for specific applications for traffic control for velocity measurement
    • 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
    • G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder

Definitions

  • the invention relates to a speed measuring device and a method for measuring the speed of a moving object, in particular a motor vehicle.
  • the invention is based on a method for measuring the speed of a moving object, in particular a motor vehicle, and for storing the measured speed together with the image of the object, which comprises the following steps: a) measuring the speed of the object with a radar measuring device , which emits radar signals and receives and evaluates radar signals reflected by the object, b) recording an image of the object with a camera and c) storing the speed measurement value and the recorded image, and preferably storing additional data such as time and location of the measurement.
  • a radar measuring device taking into account the Doppler effect, measures the speed of a vehicle, which is usually approaching, by transmitting radar signals and receiving and evaluating the radar signals reflected by the object.
  • the vehicle speed can be determined by comparing the frequencies of the received radar signals with the frequencies of the radar signals emitted. If a vehicle speed is determined. which is above a permissible speed limit value, an image of the vehicle is taken with a camera, usually a photo camera with an exposable film.
  • the measured speed values and, as a rule, additional data are superimposed on the recorded image and thus stored together with the image.
  • the optimal time for image acquisition is also determined on the basis of the received radar signals. For this purpose, a threshold value for the amplitude of the received signal is generally established. If this threshold value is exceeded, it is assumed that the vehicle is at the optimal distance from the speedometer and initiates the recording.
  • the recorded information (image of the vehicle, vehicle identification shown on the image, speed values, etc.) is available in an analog form and must be evaluated by a civil servant so that a warning letter can be created from this information to the owner of the vehicle.
  • the method for determining the time of recording by the radar measurement has sources of error.
  • the amplitude of the reflected signal depends not only on the distance of the vehicle, but also essentially on the design of the front surface of the vehicle. This results in different distances for different vehicles at which the amplitude threshold value is reached. Because of these different distances from the radar measuring device, which is generally arranged to the side of the road, there are further deviations in the angle between the direction of travel and the connecting line from the speed measuring device to the vehicle. These angular errors can cause significant errors in the speed value determined. For this reason, a tolerance range must always be taken into account in the speed measuring devices used today and the measured speed value must be reduced by this tolerance value in order to obtain a reliable measured value recognized as judicial evidence.
  • the object of the invention is to provide a method and a device which, on the one hand, enables the further processing of the recorded information (images and speed values) and, on the other hand, enables an improvement in the determination of the optimum measurement time. - j -
  • This object is achieved in relation to the method by the following steps: d) digitizing the captured images in an electronic data processing unit and e) jointly storing the digital image data with the digitized value of the measured object speed and possibly with the digitized additional data.
  • the recorded information is available in machine-readable form. As described further below, this results in a wide range of possibilities for the automatic further processing of the data, which enable the warning letters to the holder to be created automatically and which enable greater reliability and better judicial usability of the recorded data and information.
  • Digital video recording cameras are already known from video technology, which on the one hand have the required electronic image recording sensor (CCD image sensor) and on the other hand include an electronic data processing unit (CPU and associated storage units with the required software) for processing the image data. Such cameras can be used to adapt the software in conjunction with the known radar measuring devices to carry out the method according to the invention.
  • CCD image sensor CCD image sensor
  • CPU and associated storage units with the required software for processing the image data.
  • Such cameras can be used to adapt the software in conjunction with the known radar measuring devices to carry out the method according to the invention.
  • the recorded digital image data is continuously analyzed in order to determine the optimum time for taking the evidence image and the speed measurement value.
  • This analysis can be carried out with suitable image processing software in the electronic data processing unit.
  • the point in time at which a vehicle is in the optimal position for carrying out the speed measurement and for taking a sharp image can be determined.
  • the optical axis of the camera should be aimed at this optimal location. The vehicle reaches the optimal shooting point when it is in the center of the captured image. This - 4 -
  • the point in time can be determined by the digital image evaluation by determining whether the vehicle front surface is in the middle of the recorded image. If this state is determined, the electronic data processing unit emits a trigger signal, which causes the recorded image data to be stored in conjunction with the digital speed value and any additional data to be stored.
  • the measured speed value can be compared with a fixed speed limit value.
  • the recorded image is only saved in conjunction with the other digital data if the speed limit value is significantly exceeded.
  • the digital image processing can determine whether only the central vehicle or other vehicles are present in the recording area and thus in the measuring area of the radar measuring device.
  • a speed measurement is not permitted as evidence if there are several vehicles in the measuring range, since the possibility that the speed of the second vehicle is measured is not excluded. For this reason, the storage of measurements that are not permitted as evidence can be avoided with the aid of the digital image data.
  • the number plate can be identified and its alphanumeric characters determined by means of image processing software on the digitized image of a motor vehicle.
  • image processing software on the digitized image of a motor vehicle.
  • Such letter recognition programs Optical Character Recognition Software
  • This automatic reading of the number plates can be done either at the location of the recording by the electronic data processing unit of the speed - 5 -
  • the stored data must be forwarded to a central computer. This can be done with any data transmission devices.
  • the data from the speedometer can be stored on portable data storage devices (floppy disks or magnetic tapes).
  • the data can be digitally transmitted via a data network or via a radio link to a central computer.
  • the alphanumeric characters of all e.g. motor vehicles registered in a country are stored in data records which additionally include the names and addresses of the owners of the motor vehicles.
  • the central computer can determine the owner of the motor vehicle and compile a warning letter which contains the address of the owner and the digital measured values (speed, location and time and date of the measurement and, if necessary, a printout of the recorded image) includes.
  • the speed measuring device required to carry out the method according to the invention like the known speed measuring devices, has a transmitter and a receiver for radar signals, which are connected to an evaluation unit for determining the speed of an object (motor vehicle) reflecting the radar signals.
  • an evaluation unit for determining the speed of an object (motor vehicle) reflecting the radar signals.
  • there is a camera for taking an image of the motor vehicle.
  • Camera have an electronic image sensor, which with an electronic data processing unit for digitization and processing - 6 -
  • the evaluation unit and the data processing unit are connected to a memory device in which the speed values determined by the evaluation unit and the image data recorded by the camera are stored together in digital form.
  • Additional data are preferably also stored in digital form together with the other data.
  • the electronic image sensor is usually a CCD sensor.
  • the data processing unit of the camera and / or the evaluation unit of the radar measuring device is preferably connected to a central computer via a digital data connection such as a data line or radio devices (transmitter / receiver) for transmitting digital data.
  • a digital data connection such as a data line or radio devices (transmitter / receiver) for transmitting digital data.
  • the data assigned to the number plates of the motor vehicles is stored here, which enables the automatic creation of the warning letters.
  • Fig. 1 is a plan view of a roadway with a speed measuring device and a vehicle
  • Fig. 2 is a schematic representation of the different components of the speed measuring device according to the invention.
  • FIG. 1 shows a lane 1 on which a vehicle 2 is traveling at speed V.
  • a speed measuring device 3 is arranged on the edge of the road, the schematic structure of which can be seen in FIG. 2.
  • the speed measuring device 3 has a radar transmitter / receiver 4 which enables radar speed measurements and distance measurements. To evaluate the The transmitter and the receiver are connected to an electronic evaluation unit 5 by radar signals. Furthermore, the speed measuring device according to the invention comprises a camera 6, which has a CCD image sensor. The electronic image data recorded by the camera are converted into digital image signals by an analog / digital converter (A / D converter 7) and forwarded to an EDP unit 8 for image data processing. The computer unit 8 is connected to the evaluation unit 5 of the radar measuring device.
  • a / D converter analog / digital converter
  • the speed measuring device has a data memory 9 for storing the recorded image and speed data.
  • a clock is arranged in a digital component, preferably the EDP unit, which allows the date and time of a measuring process to be recorded.
  • the location of the speed measuring device can either be permanently stored in the data memory or be overwritten so that the location can be changed when the location of the speed measuring device changes.
  • the speed measuring device has a data transmission unit 10 with which the stored data can be transmitted to a central computer 11.
  • the data can either be transferred via portable storage media (floppy disks, magnetic tapes).
  • the data transfer unit is a floppy disk or magnetic tape drive.
  • the data transmission unit 10 is preferably connected directly to the central computer via a data line or via a radio link, so that the data can be transmitted without physical transport of a data carrier.
  • Fig. 1 it can be seen that the radar lobe 12, ie the field in which radar measurements are possible, has a certain elliptical extent.
  • the angle between the speed V and the connecting line between the speed measuring device 3 and the vehicle 2 varies.
  • An optimal measurement can only take place if the vehicle is detected when its center is on the center line M_ of the radar lobe 12 is located, which coincides with the optical axis of the camera 6. At this moment it is in - 8th -
  • Fig. 1 drawn in front of this - as described above - can be achieved in that the recording is triggered when a central detection of the vehicle 2 by the camera 6 is determined by the image data evaluation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • Traffic Control Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

L'invention concerne un procédé permettant de mesurer la vitesse d'un objet, en particulier d'un véhicule automobile, et de mettre en mémoire de la vitesse mesurée avec une image dudit objet. Ce procédé comprend les étapes suivantes: a) mesure de la vitesse au moyen d'un appareil radar; b) prise d'une vue de l'objet à l'aide d'un appareil photographique; c) mise en mémoire de la valeur de la vitesse mesurée et de la vue prise, et également, de préférence, mise en mémoire de données supplémentaires telles que l'heure et l'endroit auxquels a été effectuée la mesure. L'objectif de l'invention est la création d'un procédé qui permet, d'une part, un prétraitement par ordinateur des informations enregistrées et, d'autre part, une amélioration en ce qui concerne la détermination du moment optimal pour la réalisation de la mesure. Cet objectif est atteint grâce aux étapes suivantes: d) numérisation des vues prises dans une unité électronique de traitement de données; e) mise en mémoire commune des données d'images numériques et de la valeur numérisée de la vitesse de l'objet, et, éventuellement, des données supplémentaires numérisées. L'invention concerne en outre un dispositif d'acquisition sous forme numérisée d'images et de données selon le procédé décrit ci-dessus.
PCT/EP1999/001480 1998-03-10 1999-03-08 Appareil de mesure de vitesse WO1999046613A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU29325/99A AU2932599A (en) 1998-03-10 1999-03-08 Speed measuring apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998110302 DE19810302A1 (de) 1998-03-10 1998-03-10 Geschwindigkeitsmeßgerät
DE19810302.6 1998-03-10

Publications (1)

Publication Number Publication Date
WO1999046613A1 true WO1999046613A1 (fr) 1999-09-16

Family

ID=7860373

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/001480 WO1999046613A1 (fr) 1998-03-10 1999-03-08 Appareil de mesure de vitesse

Country Status (3)

Country Link
AU (1) AU2932599A (fr)
DE (1) DE19810302A1 (fr)
WO (1) WO1999046613A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6696978B2 (en) 2001-06-12 2004-02-24 Koninklijke Philips Electronics N.V. Combined laser/radar-video speed violation detector for law enforcement
WO2007128111A1 (fr) 2006-05-05 2007-11-15 Dan Manor Détecteur de trafic incorporant une caméra vidéo et son procédé de fonctionnement
WO2011096840A1 (fr) 2010-02-08 2011-08-11 Общество С Ограниченной Ответственностью "Cиctemы Передовых Технологий" Procédé de détermination de la vitesse de déplacement et des coordonnées de véhicules suivie de leur identification et de l'enregistrement automatique des infractions au code le la route et dispositif de sa mise en oeuvre
DE102010012811A1 (de) * 2010-03-23 2011-09-29 Jenoptik Robot Gmbh Verfahren zur Messung von Geschwindigkeiten und Zuordnung der gemessenen Geschwindigkeiten zu angemessenen Fahrzeugen durch Erfassen und Zusammenführen von Objekt-Trackingdaten und Bild-Trackingdaten

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19960887A1 (de) * 1999-12-17 2001-06-21 Robot Foto Electr Kg Ortsinformation bei Dateikompression
DE10017575B4 (de) * 2000-04-10 2011-06-09 Jenoptik Robot Gmbh Transportables Verkehrsüberwachungsgerät
BR0102542B1 (pt) 2001-04-04 2009-01-13 método e sistema de captura e armazenamento de uma seqüência de imagens associadas a uma ou mais infrações de tránsito .
PL359194A1 (en) * 2003-03-17 2004-09-20 Adam Mazurek Method and system for analysis and identification of moving objects
FR2872330B1 (fr) * 2004-06-25 2006-10-06 Sagem Procede et systeme de surveillance de vehicules en deplacement
BE1016332A5 (fr) * 2004-11-29 2006-08-01 Michel Niezen Procede de detection et d'identification d'un vehicule en mouvement.
EP2660624A1 (fr) 2012-04-30 2013-11-06 Traficon International N.V. Dispositif de surveillance de trafic et procédé de surveillance d'un flux de trafic
DE102013104411B3 (de) * 2013-04-30 2014-07-31 Jenoptik Robot Gmbh Verfahren zum Erfassen und Dokumentieren der Geschwindigkeiten mehrerer Fahrzeuge in einem Bilddokument

Citations (4)

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Publication number Priority date Publication date Assignee Title
FR2678412A1 (fr) * 1991-06-28 1992-12-31 Laumonier Ateliers R Procede pour surveiller, et le cas echeant, photographier automatiquement des objets en mouvement sur une trajectoire predeterminee, et dispositif pour la mise en óoeuvre de ce procede.
WO1993019441A1 (fr) * 1992-03-20 1993-09-30 Commonwealth Scientific And Industrial Research Organisation Systeme de surveillance de la circulation
US5381155A (en) * 1993-12-08 1995-01-10 Gerber; Eliot S. Vehicle speeding detection and identification
WO1997016806A1 (fr) * 1995-11-01 1997-05-09 Carl Kupersmit Systeme de surveillance de la vitesse d'un vehicule

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2678412A1 (fr) * 1991-06-28 1992-12-31 Laumonier Ateliers R Procede pour surveiller, et le cas echeant, photographier automatiquement des objets en mouvement sur une trajectoire predeterminee, et dispositif pour la mise en óoeuvre de ce procede.
WO1993019441A1 (fr) * 1992-03-20 1993-09-30 Commonwealth Scientific And Industrial Research Organisation Systeme de surveillance de la circulation
US5381155A (en) * 1993-12-08 1995-01-10 Gerber; Eliot S. Vehicle speeding detection and identification
WO1997016806A1 (fr) * 1995-11-01 1997-05-09 Carl Kupersmit Systeme de surveillance de la vitesse d'un vehicule

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SATO Y: "RADAR SPEED MONITORING SYSTEM", PROCEEDINGS OF THE VEHICLE NAVIGATION AND INFORMATION SYSTEMS CONFERENCE, YOKOHAMA, AUG. 31 - SEPT. 2, 1994, 31 August 1994 (1994-08-31), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 89 - 93, XP000641307 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6696978B2 (en) 2001-06-12 2004-02-24 Koninklijke Philips Electronics N.V. Combined laser/radar-video speed violation detector for law enforcement
WO2007128111A1 (fr) 2006-05-05 2007-11-15 Dan Manor Détecteur de trafic incorporant une caméra vidéo et son procédé de fonctionnement
EP2022026A4 (fr) * 2006-05-05 2009-09-09 Dan Manor Détecteur de trafic incorporant une caméra vidéo et son procédé de fonctionnement
WO2011096840A1 (fr) 2010-02-08 2011-08-11 Общество С Ограниченной Ответственностью "Cиctemы Передовых Технологий" Procédé de détermination de la vitesse de déplacement et des coordonnées de véhicules suivie de leur identification et de l'enregistrement automatique des infractions au code le la route et dispositif de sa mise en oeuvre
US8830299B2 (en) 2010-02-08 2014-09-09 OOO “Korporazija Stroy Invest Proekt M” Method and device for determining the speed of travel and coordinates of vehicles and subsequently identifying same and automatically recording road traffic offences
MD4332C1 (ro) * 2010-02-08 2015-09-30 Общество С Ограниченной Ответственностью "Корпорация "Строй Инвест Проект М" Procedeu de determinare a vitezei de mişcare şi coordonatelor vehiculelor cu identificarea lor ulterioară şi înregistrarea automată a încălcărilor regimului de viteză şi dispozitiv de realizare a lui
DE102010012811A1 (de) * 2010-03-23 2011-09-29 Jenoptik Robot Gmbh Verfahren zur Messung von Geschwindigkeiten und Zuordnung der gemessenen Geschwindigkeiten zu angemessenen Fahrzeugen durch Erfassen und Zusammenführen von Objekt-Trackingdaten und Bild-Trackingdaten
DE102010012811B4 (de) * 2010-03-23 2013-08-08 Jenoptik Robot Gmbh Verfahren zur Messung von Geschwindigkeiten und Zuordnung der gemessenen Geschwindigkeiten zu angemessenen Fahrzeugen durch Erfassen und Zusammenführen von Objekt-Trackingdaten und Bild-Trackingdaten

Also Published As

Publication number Publication date
DE19810302A1 (de) 1999-09-16
AU2932599A (en) 1999-09-27

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