EP0583441B1 - Dispositif pour mesurer des temps, notamment dans le domaine sportif - Google Patents

Dispositif pour mesurer des temps, notamment dans le domaine sportif Download PDF

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Publication number
EP0583441B1
EP0583441B1 EP93903160A EP93903160A EP0583441B1 EP 0583441 B1 EP0583441 B1 EP 0583441B1 EP 93903160 A EP93903160 A EP 93903160A EP 93903160 A EP93903160 A EP 93903160A EP 0583441 B1 EP0583441 B1 EP 0583441B1
Authority
EP
European Patent Office
Prior art keywords
video camera
camera
image
video
time
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.)
Expired - Lifetime
Application number
EP93903160A
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German (de)
English (en)
Other versions
EP0583441A1 (fr
Inventor
Augustin Imhof
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.)
Individual
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Individual
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Filing date
Publication date
Priority claimed from DE9202456U external-priority patent/DE9202456U1/de
Priority claimed from DE9208285U external-priority patent/DE9208285U1/de
Application filed by Individual filed Critical Individual
Publication of EP0583441A1 publication Critical patent/EP0583441A1/fr
Application granted granted Critical
Publication of EP0583441B1 publication Critical patent/EP0583441B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F13/00—Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00
    • G04F13/02—Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00 using optical means
    • G04F13/023—Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00 using optical means using cathode-ray oscilloscopes
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F13/00—Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00
    • G04F13/02—Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00 using optical means
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • G07C1/22—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people in connection with sports or games
    • G07C1/24—Race time-recorders

Definitions

  • the invention relates to a device for measuring a time span, in particular for sports time measurements, with the features according to the preamble of protection claim 1.
  • the image axis of the video camera which was initially mechanically precisely aligned to the target line, be set in the horizontal, in accordance with the imaging requirements, for visualization of the target line in the individual partial images on a monitor becomes.
  • This subsequent adjustment of the camera image axis must not cause any aberrations on the individual partial images.
  • a so-called pseudo measurement can be carried out, which is based on one or more specific measurement marks related to the finish line.
  • a system for measuring a time span is known from CH-PS 515 549, the end of which is determined by a visible result, in particular for measuring the time in sports competitions, with a basic clock for generating a clock signal, with devices for reducing this clock signal for the purpose of generating a pulse-shaped time signal, with a pulse interval corresponding to the smallest interval to be measured and means for starting it in phase Reduction on the basis of a signal supplied from the outside and with at least one device for counting the pulses of the time signal, characterized by at least one television camera serving to take pictures of the event mentioned, the change of which coincides with the pulses of the said time signal, furthermore by a device for fading in the counting result determined by the counting device in the form of digits in the said images and by a device for recording the recorded images together with overlays on a magnetic signal carrier and for single playback of the recorded images.
  • a time image recording device with a television camera, with a memory for storing a video signal generated by the television camera, representing a scene and that of an image display device connected to the memory, the time image recording arrangement with a television camera connected signal generator for supplying a field synchronous deflection signal to the camera, which signal has a repetition duration which is essentially a whole part of the field duration according to the television standard and which is characterized in that in the television camera the scanning only over part of the image height corresponds to that of the standard Field duration corresponds to repeated in every standard field duration, while a signal output of the television camera connected to the memory carries a video signal with the standard field frequency.
  • DE-PS 37 16 987 a method for determining the time between the start and finish of competitors, vehicles or the like., In particular of runners, riders, racing cars or the like.
  • a recording camera with a playback device for still images preferably with Monitor, a timer with superimposition of the moving time in the camera image and a light barrier or the like.
  • the recording camera delivers still images at a fixed time interval of preferably four hundredths of a second and is aligned with the finish line , which is characterized in that at least two times are faded into the camera images, which run simultaneously synchronously with one another and one of which continues to run during camera operation and corresponding jumps in the individual images are faded into these individual images and from still image to still image shows the respective time of the individual recording, and that the fade-in of a second time by interrupting the light barrier when a competitor, vehicle or the like touches the finish line. arrested and the display of this finish passage time is recorded at least after a picture change, i.e.
  • a method for is also from DE-PS 39 977 Determination of the time between the start and finish of competitors, riders, vehicles or the like is known, in which a video camera with a playback device for still images and preferably with a monitor, a time generator, the moving by a start pulse, for example a start pistol, start light barrier or the like, moving Time during the camera operation is faded into the still images and indicates the respective time of the single still image recording from still image to still image, and a light barrier or similar sensor is provided in accordance with a target line and the video chamber still images at a fixed time interval of preferably two of the four Delivers hundredths of a second and is aligned with the finish line, in which a first superimposed time is measured and displayed at least an order of magnitude more accurately than the smallest unit of time to be measured and that the output signal of the camera is the time generator dera rt controls that this more precise time pending at the time of an image recording is superimposed and recorded in this image.
  • a start pulse for example a
  • the setting and alignment of the camera image axis to a target line is carried out purely manually, in that the target recording video camera, in particular mounted on a tripod, is displaced accordingly the tripod on the ground to which the target line axis is aligned. It is also important to ensure that the camera image axis is fixed perpendicular to the finish line.
  • the invention has for its object to provide a device of the type mentioned, in which the disadvantages mentioned are eliminated and which enables the required measurement accuracy of only using commercially available, economical hardware, in particular a video camera with a clock frequency of 50 Hz to achieve a hundredth of a second. It should be ensured that both the mechanical adjustment of the camera image axis and the adjustable display of the finish line on the partial images displayed on the monitor are simple, fast and free of aberrations, absolutely reliable.
  • Another advantage is the mechanical, or optical, or optoelectronic sighting device provided in the area of the video camera for the first simple, quick and precise adjustment of the camera image axis to a finish line, and a second adjustment of the camera image axis to display the finish line in the, on the monitor reproduced, two partial images, with a simple mechanical adjustment device that can be pivoted and locked in the horizontal, which ensures that imaging errors are sufficiently avoided.
  • the CCD (Charge Coupled Device) image converter element 1 of a video camera 4 shown in FIG. 1 essentially consists of a charge-coupled semiconductor component, an integrated circuit for processing electrical and optical signals, in which the information is in the form of electrical charges is saved and forwarded.
  • Such CCD image converter elements are known to consist of a large number of closely adjacent, electrically insulated gate electrodes and one transistor each at the signal input and output of the chain. A signal is injected under the neighboring gate electrode by a signal at the input transistor.
  • the charge carrier packets stored in the inversion areas under the electrodes, which contain digital information i.e. represent a signal can be shifted from one to the next by cyclically changing the voltage applied to the electrodes until they are available as an output signal at the end of the chain.
  • the CCD image converter element 1 can be used in the present case advantageously as a delay element for a required video clock frequency of 100 Hz to achieve the task set out above.
  • cover element in particular in the form of an opaque film, which covers a part, in particular the one-sided half, of the gate electrodes 3 provided there on the front side on the CCD imager element 1.
  • FIG. 2 shows in detail a video camera 4 with a front lens 5 and a CCD image converter element according to FIG. 1, not shown, which is arranged approximately at the level of the camera plane 6 and is not covered in detail denotes a clock generator, which is supplied by a time generator 8 with time information for a clock signal 27, of 100 Hz, which is supplied to the video camera 4 via the line 9.
  • a clock signal 27 of 100 Hz is also supplied via the time generator 8 and the clock generator 7 to the video camera 4 when no start impulse has yet been given to trigger the competition time to be measured.
  • This 100 Hz clock signal voltage 27 for the video camera 4 is necessary in order to be able to provide a corresponding image recorded by the video camera 4 on the monitor 10, in particular for setting up and adjusting the video camera 4, and for constantly checking the overall device, even outside the actual competition time measurement phase .
  • This mixer stage 14 is also provided by a character generator 15, voltage signals data of the competition times 16, which have been processed in a manner appropriate to the video, and a finish line marking which can be moved manually in the direction of the arrow 17 18, which are stored in the video recording device 19 until they are evaluated and displayed on the monitor 10. 29 denotes a smoothing stage in line 13.
  • the image forward and backward manually, in particular analog adjustable target line marking 18, if necessary, is provided with an analog and / or digital, mechanical and / or electronic, time-controlled by the time generator 8.
  • an EDP interface 52 is provided at the output of the mixing stage 14, in particular for the connection of a digital, data-processing storage, input and output terminal, a computer with which not only a fully digitized processing of the competition video and / or the competition time data is possible, but with which, if necessary, the fade-in finish line marker 18 can also be moved digitally, in particular using a so-called mouse.
  • all competition data obtained can be stored digitally on a ROM or other data memory, in particular on floppy disks or CD-ROMs.
  • the video camera 4 is rotated together with the CCD image converter element 1, relative to the position according to FIG. 1, by 90 ° around the recording axis, so that the cover edge 22 runs vertically, as is the case with the Fig. 3 shows.
  • the aforementioned horizontally adjacent image reproduction of the two partial images 20 and 21 is achieved, as can be seen on the monitor 10 according to FIG. 4.
  • This also has the advantage that the image section can, if necessary, be reduced in favor of an enlarged representation of the target event, the narrowing in the horizontal plane being not a disadvantage.
  • this, or the video camera 4 is spatially aligned with a target line in such a way that this target line 23 comes to lie approximately in the middle of a partial image 20, 21, i.e. that on each field 20, 21 a target line 23 can be seen.
  • the 3-channel oscillogram shown in FIG. 5 clearly shows the result, which, in particular through the cover 2 on the CCD image converter element 1 according to FIGS. 1 and 3, shows the novel image reproduction of two partial images 20, 21, which are recorded offset from one another at a time interval of 1/100 second.
  • the voltage signal 27 means the clock frequency signal of 100 Hz and 25, 26 the voltage signals of the the two partial images 20, 21 present there.
  • Oscillogram C shows the result obtained in accordance with the innovation, in the form of a clock signal voltage 24, which is fed via line 13 to mixer 14, according to FIG. 2. It can be seen that at a clock frequency of 50 Hz, corresponding to the signal 24, voltage signals 25, 26 are transmitted which correspond to the two fields 20, 21.
  • 31 denotes a competition track in the target area, with the individual tracks 32 and with competitors 42.
  • 23 shows the finish line towards which the image axis 30 of the video camera 4 in the housing 38 is aligned, which is arranged on the stand 34.
  • 10 denotes a monitor for the reproduction of the current camera image, which in the present illustration consists of the two partial images 20 and 21, which, as explained above, are generated by a clock signal of 100 Hz, in order to achieve the required measuring accuracy of one hundredth of a second.
  • the video camera 4 and electronics unit 39 in the housing 38 shown in FIGS. 6 and 7 is provided with a mechanical sighting device, which is formed in particular from a cross hair 36 arranged on the front of the housing and a cross hair 37 provided on the rear of the housing.
  • 46 denotes the line of sight running through the crosshair centers.
  • 44 denotes a lockable camera mount, which is mounted manually in the direction of arrow 33, by means of an adjusting knob 35, on the video camera 4, in particular on a so-called lens holder 47, which is pivotably mounted in the horizontal.
  • 30 marks the camera image axis there.
  • the video camera 4 is positioned on the camera support 44 in relation to the sighting line 46 in such a way that the camera image axis 30 extends axially parallel to the sighting line 46 is set and locked. 45 there sets screws for releasably locking the pivotable camera support 44 mounted on the housing cover 40 of the electronics unit 39 corresponds to line of sight 46.
  • the camera carrier 44 is mounted in the bearing point 50, in the camera image plane 51 and perpendicular to the line of sight 46, on the housing cover 40. This ensures that the camera image axis 30 can be pivoted in the required second setting to make the target line 23 visible on the two monitor sub-images 20 and 21 by means of the camera support 44.
  • the one in the first camera setting is based on the orientation of the line of sight 46 the target line 23, initially not shown, was in the area of the image separation bar 49, between the two partial images 20 and 21, on the monitor 10.
  • a prism which is provided in front of the camera lens 48 and is rotatably mounted to be perpendicular, to shift the camera image axis 30, in accordance with the requirements, with respect to the actual fixation.
  • an optical sighting device with a so-called telescopic sight, or an optoelectronic device Sighting device, for example with a lens, a CCD sensor connected behind it and a miniature picture tube with a downstream viewfinder. It is also provided that the camera carrier 44 can be adjusted or adjusted both manually and by remote control.
  • the video camera 4 is provided directly with an optomechanical or an optoelectronic viewfinder with a sighting device, the sighting line 46, according to FIG. 7, in the lens area running coaxially to the image axis 30 of the video camera 4.
  • a mechanical and / or electronic vernier or angle encoder can be provided, which is first calibrated to the target line 23. A reproducible mechanical adjustment of the image axis 30, manually or by remote control, can then take place with respect to this mark.

Claims (19)

  1. Dispositif pour chronométrer un intervalle de temps, en particulier lors du chronométrage de performances sportives, comportant une caméra vidéo (4) avec un inverseur vidéo CCD (1) et une fréquence d'horloge vidéo de 50 Hz, un moniteur (10) muni d'un dispositif pour l'enregistrement et la reproduction des images enregistrées, en particulier pour la reproduction d'images fixes, un étage mélangeur, d'une part pour l'entrée du signal de tension vidéo provenant de la caméra (4) et d'autre part pour l'entrée de données issues du signal de tension, traitées pour la reproduction en vidéo et concernant les performances qui émanent d'un générateur de caractères (15) chronorégulé, et comportant aussi une commande déclenchant l'impulsion de départ et un palpeur déclenchant l'impulsion d'arrivée au but, en particulier une cellule photoélectrique, caractérisé en ce qu'une partie des électrodes de grille (3) de l'inverseur vidéo CCD (1) de la caméra (4) sont recouvertes, en particulier d'un côté, par un recouvrement (2) opaque, en particulier du type film, et en ce qu'une fréquence séquentielle de 100 Hz est amenée à la caméra vidéo (4) à partir d'un générateur d'impulsions (7) chronorégulé.
  2. Dispositif selon la revendication 1, caractérisé en ce que le recouvrement (2) est disposé sur l'inverseur vidéo CCD (1) latéralement par rapport à l'axe de prise de vue de la caméra vidéo (4).
  3. Dispositif selon les revendications 1 et 2, caractérisé en ce qu'au moins la moitié des électrodes de grille (3) sont recouvertes d'un côté.
  4. Dispositif selon les revendications 1 à 3, caractérisé en ce que l'arête antérieure (22) du recouvrement (2) est disposée de manière à s'étendre verticalement dans l'espace.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que sur le moniteur (2) sont reproduites deux images partielles (20, 21) et en ce que sur chaque image partielle (20, 21) est insérée une ligne de but (23).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que dans les images partielles (20, 21) sur le moniteur (10) est incorporé un marquage (18) de la ligne de but, lequel est réglable manuellement, en particulier en le faisant avancer et reculer dans l'image.
  7. Dispositif selon la revendication 6, caractérisé en ce que le marquage (18) est généré de manière chronorégulée dans le générateur de caractères (15), et qu'il est inséré dans les images partielles (20, 21) apparaissant sur le moniteur (10), en particulier conjointement aux temps des performances (16).
  8. Dispositif selon les revendications 6 et 7, caractérisé en ce que le marquage (18) des lignes de but réglable de manière analogique est muni d'un chronomètre analogique et/ou numérique, mécanique et/ou électronique.
  9. Dispositif selon les revendications 1 à 8, caractérisé par la présence d'une interface informatique (52), destinée en particulier à la connexion d'un terminal informatique, numérique, pour la mise en mémoire, l'entrée et la sortie des données.
  10. Dispositif selon la revendication 9, caractérisé en ce que le marquage (18) des lignes de but peut être déplacé au moyen d'une souris.
  11. Dispositif selon les revendications 9 et 10, caractérisé en ce que les données des performances recueillies peuvent être mémorisées sur une mémoire numérique ROM ou autre, en particulier sur des disquettes magnétiques et/ou des CD-ROM.
  12. Dispositif selon les revendications 1 à 11, caractérisé en ce que la caméra vidéo (4) est munie d'un dispositif de visée mécanique ou optique ou optoélectronique, dont la ligne de mire (46) est réglable axialement de manière à se dérouler parallèlement à l'axe (30) de l'image prise par la caméra.
  13. Dispositif selon la revendication 12, caractérisé en ce que l'axe (30) de l'image de la caméra vidéo (4) est réglable mécaniquement, manuellement ou par télécommande, par rapport à la ligne de mire (46) du dispositif de visée, en particulier à l'horizontale.
  14. Dispositif selon les revendications 12 et 13, caractérisé en ce que le dispositif de visée est constitué de deux réticules (36 et 27) disposés l'un derrière l'autre à une certaine distance dans l'espace, et s'étendant en direction de l'axe (30) de l'image prise par la caméra.
  15. Dispositif selon les revendications 12 et 13, caractérisé en ce que le dispositif de visée est constitué d'un téléobjectif ou d'un dispositif optoélectronique muni d'un objectif, d'un capteur CCD monté derrière celui-ci et d'un tube vidéo miniature, en particulier comportant un viseur monté en aval.
  16. Dispositif selon les revendications 12 à 15, caractérisé en ce que le dispositif de visée est disposé de manière solidarisée à l'intérieur du carter (38) de l'ensemble constitué par la caméra vidéo (4) et l'unité électronique (39), et en particulier qu'il est intégré à ce carter.
  17. Dispositif selon les revendications 12 à 15, caractérisé en ce que le dispositif de visée est relié directement à la caméra vidéo (4), que la ligne de visée (46) dudit dispositif de visée s'étend coaxialement à l'axe (30) de l'image, qu'un viseur comportant un dispositif de visée est disposé sur la caméra vidéo (4), et qu'est prévu un chronomètre mécanique et/ou électronique ou un capteur angulaire destiné à mesurer et/ou à indiquer le déplacement de l'axe de l'image.
  18. Dispositif selon les revendications 1 à 17, caractérisé en ce que la caméra vidéo (4) est disposée sur un support (44) de la caméra vidéo, monté de manière pivotable et pouvant être immobilisé de manière mécanique.
  19. Dispositif selon la revendication 18, caractérisé en ce que le support (44) de la caméra vidéo est disposé et monté sur le dessus (40) du carter de l'unité électronique (39).
EP93903160A 1992-02-26 1993-02-08 Dispositif pour mesurer des temps, notamment dans le domaine sportif Expired - Lifetime EP0583441B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE9202456U 1992-02-26
DE9202456U DE9202456U1 (fr) 1992-02-26 1992-02-26
DE9208285U 1992-06-20
DE9208285U DE9208285U1 (fr) 1992-06-20 1992-06-20
PCT/DE1993/000114 WO1993017372A1 (fr) 1992-02-26 1993-02-08 Dispositif pour mesurer des temps, notamment dans le domaine sportif

Publications (2)

Publication Number Publication Date
EP0583441A1 EP0583441A1 (fr) 1994-02-23
EP0583441B1 true EP0583441B1 (fr) 1997-08-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93903160A Expired - Lifetime EP0583441B1 (fr) 1992-02-26 1993-02-08 Dispositif pour mesurer des temps, notamment dans le domaine sportif

Country Status (5)

Country Link
EP (1) EP0583441B1 (fr)
JP (1) JPH06507247A (fr)
AT (1) ATE156604T1 (fr)
DE (1) DE59307056D1 (fr)
WO (1) WO1993017372A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10336447A1 (de) * 2003-08-06 2005-03-10 Gerd Hansen Verfahren und Vorrichtung zum Erfassen und Verarbeiten von Daten eines Sportereignisses
GB0917305D0 (en) 2009-10-02 2009-11-18 Timetronics Nv System and method of calibrating a system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7507048A (nl) * 1975-06-13 1976-12-15 Philips Nv Tijdregistratieinrichting voorzien van een tele- visiekamera.
EP0207675B1 (fr) * 1985-06-19 1990-05-02 Yamaguchi Cinema Corporation Appareil d'enregistrement et de reproduction de signaux vidéo
DE3716987C1 (de) * 1987-05-21 1988-04-28 Augustin Imhof Verfahren und Vorrichtung zur Bestimmung der Zeit zwischen Start und Ziel von Wettkaempfern od.dgl.

Also Published As

Publication number Publication date
WO1993017372A1 (fr) 1993-09-02
EP0583441A1 (fr) 1994-02-23
DE59307056D1 (de) 1997-09-11
JPH06507247A (ja) 1994-08-11
ATE156604T1 (de) 1997-08-15

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