EP3453430A1 - Method and system for timing a basketball game - Google Patents
Method and system for timing a basketball game Download PDFInfo
- Publication number
- EP3453430A1 EP3453430A1 EP17190608.4A EP17190608A EP3453430A1 EP 3453430 A1 EP3453430 A1 EP 3453430A1 EP 17190608 A EP17190608 A EP 17190608A EP 3453430 A1 EP3453430 A1 EP 3453430A1
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- EP
- European Patent Office
- Prior art keywords
- basketball
- timing
- optical sensor
- basket
- optical
- 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.)
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 120
- 238000001514 detection method Methods 0.000 claims abstract description 45
- 230000000007 visual effect Effects 0.000 claims abstract description 40
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 230000003213 activating effect Effects 0.000 claims abstract 2
- 238000012545 processing Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000004148 unit process Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 description 7
- 230000001419 dependent effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
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- 230000033764 rhythmic process Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000009012 visual motion Effects 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B63/00—Targets or goals for ball games
- A63B63/08—Targets or goals for ball games with substantially horizontal opening for ball, e.g. for basketball
- A63B63/083—Targets or goals for ball games with substantially horizontal opening for ball, e.g. for basketball for basketball
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/0071—Training appliances or apparatus for special sports for basketball
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0686—Timers, rhythm indicators or pacing apparatus using electric or electronic means
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- 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
-
- 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
- G07C1/28—Indicating playing time
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
- A63B2024/0028—Tracking the path of an object, e.g. a ball inside a soccer pitch
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
- A63B2024/0037—Tracking a path or terminating locations on a target surface or at impact on the ground
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/62—Time or time measurement used for time reference, time stamp, master time or clock signal
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
- A63B2220/805—Optical or opto-electronic sensors
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
- A63B2220/806—Video cameras
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
- A63B2220/83—Special sensors, transducers or devices therefor characterised by the position of the sensor
- A63B2220/833—Sensors arranged on the exercise apparatus or sports implement
Definitions
- the invention relates to a method of timing a basketball game.
- the invention also relates to a timing system of a basketball game for the implementation of the method.
- the patent application WO 2016/057535 A1 which precisely describes a basketball hoop with means for detecting any ball passing through said basket from above.
- the net of the basket comprises a conductive element likely to extend with the net, when the ball enters the basket.
- the electrical property of this conductive element can change especially with an increase in its resistivity.
- This conductive element is connected to a detection circuit. An electrical variation profile of the element during the passage of the ball in the net can be determined.
- This conductive element may be a conductive elastomeric material.
- a communication unit is also provided for transmitting a detection signal of the detection circuit to a treatment station.
- the detection assembly is not intended to stop a time of timing during the passage of the ball in the basket, which is a drawback.
- the patent FR 2 643 824 B1 describes a device for detecting and signaling goals scored in a basketball game. At least one signal transmitter is arranged on the input ring of the basketball basket and at least one signal receiver is also arranged opposite the corresponding transmitter on the ring. Without any balls entering the basket, the receiver receives the signal from the transmitter. On the other hand, when a ball enters the basket, an interruption of reception of the signal by the receiver makes it possible to detect the entry of the ball. The interruption of the signal picked up thus makes it possible to activate a visual or sound information.
- the detection device is not intended to stop a time of time during the passage of the ball in the basket, which is a drawback.
- the patent US 6,389,368 B1 describes a device to detect basketball basket shots in order to establish a score and shots statistics.
- the apparatus includes a visual detection device disposed on the basket attachment panel in connection with a computer processing device.
- This visual detection device is a sensor with several pixels to capture the position of the ball at the start of the shoot and the moment of the passing through the basketball basket and transmitting signals relating to a difference in light intensities to the processing device to determine the position of the ball and its passage in the basket net.
- a vibration sensor is still installed on the basketball hoop panel to provide information of the contact of the ball in the basketball basket ring.
- the detection device is not intended to stop a time of time during the passage of the ball in the basket, which is a drawback.
- the invention therefore aims to overcome the disadvantages of the state of the art mentioned above by providing a method of timing a basketball game.
- at least one optical sensor is disposed near or on the basketball basket to detect a ball entering the basket during the game to stop playing time.
- the invention relates to a method of timing a basketball game, which comprises the features defined in the independent claim 1.
- An advantage of the timing method lies in the fact that optical detection by an optical bullet detector in the basket and / or visual detection by computer processing is provided in order to detect the passage of the bullet in the ring of the basket.
- basketball to provide a detection signal to a timing device for stopping playing time.
- the optical bullet detector is at least one optical sensor disposed on the basketball hoop or on a connection support of the basket to a control panel. basketball or even on said basketball board to detect the passage of the ball through the ring of the basket.
- Visual detection consists of one or more kinetic cameras (Kinect®) with motion and depth recognition, as well as an integrated infrared system.
- the optical bullet detector comprises at least one optical light sensor and a light source facing the sensor, which can be arranged on a surface of the ring basket basket or integrated in the ring of the basketball hoop.
- the light source arranged opposite and diametrically opposite the optical sensor provides during the game a light beam captured by the optical sensor.
- the passage of the ball in the ring of the basketball basket momentarily interrupts the reception of light by the optical sensor. This makes it possible to provide a detection signal following the reception or non-reception of the light beam at the timing device to stop playing time.
- the optical sensor of the optical bullet detector can be associated with a camera of kinetic type of the visual detector with computer processing of movement and depth or with a color camera, an infrared camera or a defined device LIDAR.
- the LIDAR device is also capable of determining the distance from the sensor to the ball in a two-dimensional or three-dimensional space. Under these conditions, it is not necessary to use an additional light source placed on the basket basket ring.
- Accurate timing of a basketball game is one of the fundamental bases in modern basketball.
- the presented timing system connects at least one optical sensing optical sensor and / or visual movement and depth detection with the timing device and assists in improving the quality of the game by removing potential human errors.
- the invention also relates to a system for timing a basketball game, which comprises the characteristics defined in the independent claim 6.
- Embodiments of the timing system are defined in dependent claims 7-17.
- the figure 1 represents the different elements of a timing system 1 for the timing of a basketball game.
- the timing system essentially comprises a timing device 2, and a ball detector 3, 4.
- the ball detector may include an optical bullet detector 3 for detecting a ball entering a basketball basket during the game and / or a game. 4.
- the timing device 2 is switched on and a time is counted in the timing device 2, which comprises a processing unit or calculation unit. timing software with an oscillator defining a time base.
- the optical ball detector 3, which is preferably placed near or on a surface of the ring of the basketball basket, can be activated at the beginning of the game by the timing device 2 or can be switched on, independently of the timing device 2, by manual control or remote control.
- the visual sensor of movement and ball depth 4 can also be activated at the beginning of the game.
- the ball detector 3, 4 transmits a data signal or detection to the timing device 2 to stop the playing time.
- the timing system 1 with the visual bullet detector 4, which comprises one or more kinetic-type cameras 41 (Kinect®) positioned at different locations for detecting and recognizing the movements of the bullet 20 through the net 11 of the basketball basket 10.
- This visual detection is associated with digital processing, which validates the passage of the ball 20 in the basket 10.
- the timing system 1 may further comprise an input terminal 6, which is activated to control the playing time, in particular by officials.
- the timing device is therefore linked to the input terminal for the control of the playing time.
- the timing device 2 is integrated in the input terminal 6, which can be arranged on a clock table.
- the timing system 1 may further include one or more remote control devices 5 for wirelessly controlling the timing device with a portable object, a game official, and a unit. time control 7 by action of a whistle of a game referee, which is connected to the timing device.
- this time control unit may consist of an electronic referee whistle capable of transmitting a radiofrequency signal to the timing device signaling stoppages.
- the optical bullet detector in the basket 3 can be connected by cable or electrical wire or by means of wireless communication to the timing device 2.
- the optical bullet detector 3 essentially comprises at least one optical sensor arranged near or on the basketball basket.
- This optical sensor may be a light sensor, which is composed of at least one photoreceptive diode or a pixel, or a network of photoreceptive diodes or pixels.
- the optical sensor can be a kinetic type camera with a computer processing of movement and depth of the ball.
- the optical sensor of the optical bullet detector 3 can also be a color camera, an infrared camera or a defined device LIDAR so as to take different images of the ball at the time of its passage in the basketball basket and be able to transmit the data signal relating to the images at the timing device 2.
- This LIDAR device captures the light and its intensity to determine the distance from the sensor to the ball in a two-dimensional or three-dimensional space.
- the optical bullet detector in the basket 3 may also include a light source facing a simple optical light sensor as explained hereinafter with reference to FIGS. Figures 2 and 3 .
- the detection signal of the optical bullet detector 3 and / or the visual bullet detector 4 is preponderant to stop playing time when the ball enters the basket with respect to the referee whistle stop signal or by a official table.
- FIGS. 2 and 3 represent a simplified embodiment in a three-dimensional view of a basketball hoop with the optical bullet detector 3 and a side view of a basketball hoop attached to a panel mounted on a mounting post with the optical detector of bullet 3 and / or a visual bullet detector 4 shown at figure 4 .
- the figure 4 represents a simplified embodiment in a three-dimensional view of a set of a basketball basket attached to a panel 13, which may be partly transparent.
- the basketball sign 13 is still connected by at least one bar 14 to a fixing post 15, which is generally fixed vertically on the edge of the basketball court.
- a score display board 16 with a visual ball detector 4, which is composed of one or more kinetic-type cameras 41, may be mounted on the post 15.
- the bar or bars 14 and the post 15 are generally made of material metallic.
- the cameras 41 may also be arranged on the bar 14 and / or on the panel 13. For the proper functioning of the kinetic-type cameras, they must preferably be positioned at a distance of less than 3 m from the basketball basket and arranged for viewing. towards the basketball hoop.
- the basketball basket can be part of the timing system.
- the optical bullet detector 3 and / or the visual bullet detector 4 are connected to the timing device 2 of the timing system.
- the dimensions and positioning of the components shown on the Figures 2, 3 and 4 are not precisely respected and they can, of course, be arranged in other places according to the invention.
- the basketball basket includes a ring 10 through which the ball must pass 20 from above to score a goal, and a net 11 attached to the inner or outer periphery of the ring 10 to receive the ball entering through the ring.
- the ball 20 passes completely through the net 11 open downwards.
- the ring 10 is connected to a basketball panel 13 by a connection support 12.
- the ring 10, the connection support 12 and the panel 13 are made of impact-resistant solid material.
- the basketball panel 13 is further connected by bars 14 to a fixing post 15, which is generally fixed vertically at the edge of the basketball court.
- the bars 14 and the post 15 are generally made of metallic material.
- two basketball basket sets are placed on each side of the playing field for a basketball game.
- the optical bullet detector 3 comprises in particular at least one optical sensor 31 disposed on a surface of the ring or partially integrated in the ring with a light receiving portion visible on or in the ring 10 of the basketball basket.
- This optical sensor 31 can be placed at a first position on a surface of the ring or in the ring 10 around the ring from the attachment of the ring 10 to the connection support 12.
- it can also be considered to place the optical sensor 31 directly on the connection support 12 or also in contact with the basketball panel 13.
- it may be an optical sensor in the form of a camera as indicated above .
- the optical sensor 31 of simple design is presented to be fixed near the connection support 12 with its light receiving surface preferably directed towards the center of the ring 10 of the basket.
- At least one camera of the kinetic type of the visual detector 4, not shown, can also be placed on the basket or the panel holding it.
- the optical bullet detector 3 may further comprise at least one light source 32 disposed on a surface of the ring 10 or partially integrated into the ring.
- the light source 32 may be placed at a second position on or in the ring 10 on the periphery of the ring from the attachment of the ring 10 to the connection support 12.
- the light source 32 is arranged in a position diametrically opposed to the optical sensor 31 on the same surface of the ring and facing said optical sensor 31.
- the light source 32 is necessarily dependent on the technology used of the optical sensor 31.
- This light source 32 may be a light-emitting diode for emitting a ray R of defined color, such as in the infrared, towards the optical sensor 31 or a source of emission of a laser beam.
- the optical sensor 31 is thus able to capture the light emission generated by the light source if no ball passes through the ring 10 of the basketball basket.
- the visual movement and depth detector 4 may, necessarily or not, be associated with the optical bullet detector 3. Visual detection and computer processing can independently validate the passage of the ball in the basket by the kinetic-type technology associated (Kinect®).
- the optical bullet detector 3 comprises an acquisition unit not shown, but which can be integrated in the structure of the optical sensor 31, to receive a light detection signal of the optical sensor.
- a detection signal processing unit may further be provided in the bullet optical detector 3 and / or in a visual bullet detector 4 or in the timing device 2, or be part of the acquisition unit directly.
- the processing unit executes algorithms detecting that a bullet passes through the ring 10 of the basket.
- a data communication Data can be performed from the optical bullet detector 3 in particular from the optical sensor 31 to the timing device 2.
- the data data communication may relate to the detection of a bullet, which passes through the ring 10 of the basketball basket during the game, to stop playing time in the timing device 2.
- the optical bullet detector 3 can therefore be connected to the timing device 2 by cable or electrical wire passing through the panel 13, the bars 14 and the pole 15, or by means of wireless communication by radio frequency signals.
- the processing unit may also be located close to the optical sensor 31, in particular on the connection support 12 of the basketball basket. This processing unit can also be disposed directly in the timing device 2, as part of the timing software.
- the optical bullet detector 3 and / or the visual visual recognition detector 4 by one or more kinetic-type cameras is intended to detect the moment when the bullet 20 enters the ring 10 and the moment or the upper part of the ball is at or below the ring, and already partly in the net 11.
- the optical sensor 31 detects the light of the light source 32 as no object is disposed between the optical sensor 31 and the light source 32. On the other hand, as soon as the lowest part of the ball 20 penetrates from above into the ring 10 of the basket, the optical sensor 31 no longer detects the light coming from the light source. 32 and inform the processing unit or the timing device.
- the optical sensor 31 must again detect the ray R of light coming from the light source 32. It again detects the ray R of light once the upper part of the ball 20 is at or below the ring 10 of the basket, where are the optical sensor 31 and the light source 32.
- a detection signal is provided to the timing device 2, which takes the new light detection of the optical sensor after the start of the non-reception of light is counted in order to stop the playing time.
- the timing device 2 comprises timing software, which can detect the moment of the non-reception of light. receiving the ray R of light by the optical sensor and then receiving again the ray R of light, to stop the playing time. This means that the ball 20 has penetrated the ring 10 of the basket and a goal is also comp tabilisé.
- the acquisition unit of the optical bullet detector 3 in connection with the optical sensor 31 can also measure a difference in light intensities in order to be able to detect the reception or non-reception of the ray R of light of the light source 32 in order to get rid of the ambient light. For more precise measurement, it can also be expected to place at different positions on one surface of the ring 10, several optical sensors 31 and several light sources 32 of different colors. Each optical sensor is opposite and diametrically opposed to a respective light source. Data communication with the timing device 2 is performed from the optical bullet detector 3 in connection with the detection of each optical sensor 31.
- timing system 1 may associate or not a visual detection by kinetic-type cameras (Kinect®) by motion detection and depth to detect the passage of the ball in the basket ring.
- Kinect® kinetic-type cameras
- the optical bullet detector 3 and / or the visual bullet detector 4 can be activated by the timing device. 2 at any time before or during play time.
- a calibration step of the optical bullet detector 3 and / or the visual bullet detector 4 may be provided after the installation of the timing system and before the start of the counting of game time of the device. timing 2. Calibration is necessary if only an optical sensor such as a camera or LIDAR device or a visual detection system is used by at least one kinetic camera (Kinect®) .
- the calibration steps are on the one hand the detection of the ring border via the shape adaptation and on the other hand the detection of the volume on the basis of the detected shape.
- there is an object detection, such as the bullet with the presence in the detected volume, and a pattern recognition to ensure the accuracy of the detected object, which passes through the ring of the basket.
- information from multiple optical sensors combining various technologies can be used to improve measurement accuracy, as well as one or more kinetic-type cameras (Kinect®) for visual detection.
- the optical light sensor may comprise two light-receiving surfaces arranged vertically on one another so as to make it possible to differentiate the direction of passage of a ball in the basketball hoop during the game. If an optical sensor and a light source are used, the latter can emit a light beam intermittently or by flash. A plurality of optical sensors and multiple light sources may be placed on a top and / or bottom surface of the basketball basket ring to also determine the direction of passage of the ball through the basketball basket.
- the visual motion detection may be associated or used independently of the optical detection to detect the passage of the ball through the basket.
Abstract
Le procédé de chronométrage d'une partie de basketball est défini via un système de chronométrage (1), qui comprend un dispositif de chronométrage (2) en liaison à un détecteur optique de balle (3) et/ou en liaison avec au moins un détecteur visuel de balle pour détecter une balle (20) dans un panier de basketball. Le détecteur optique de balle comprend un capteur optique (31) disposé à proximité ou sur le panier de basketball, et le détecteur visuel comprend au moins une caméra cinétique pour détecter le mouvement et la profondeur de la balle dans le panier de basketball avec traitement du signal. Le procédé comprend les étapes de débuter un comptage de temps de jeu en activant le dispositif de chronométrage, de capter par le capteur optique et/ou la caméra cinétique le passage de la balle de basketball dans un anneau (10) du panier de basketball, et de transmettre au moins un signal de détection du passage de la balle dans le panier de basketball au dispositif de chronométrage pour arrêter un temps de jeu. The method of timing a basketball game is defined via a timing system (1), which includes a timing device (2) in connection with an optical bullet detector (3) and / or in connection with at least one visual ball detector for detecting a ball (20) in a basketball hoop. The optical bullet detector includes an optical sensor (31) disposed near or on the basketball basket, and the visual sensor includes at least one kinetic camera for detecting movement and depth of the ball in the basketball basket with signal. The method comprises the steps of starting a play count by activating the timing device, sensing by the optical sensor and / or the kinetic camera the passage of the basketball into a ring (10) of the basketball basket, and transmitting at least one detection signal of the passage of the ball in the basketball basket to the timing device to stop playing time.
Description
L'invention concerne un procédé de chronométrage d'une partie de basketball.The invention relates to a method of timing a basketball game.
L'invention concerne également un système de chronométrage d'une partie de basketball pour la mise en oeuvre du procédé.The invention also relates to a timing system of a basketball game for the implementation of the method.
Dans une compétition sportive, telle qu'une partie de basketball, il est connu d'utiliser des dispositifs électroniques notamment pour la détection d'une balle entrant dans le panier de basketball. Ces dispositifs comprennent des éléments capteurs pour détecter tout passage d'une balle dans le panier par exemple depuis le dessus.In a sports competition, such as a basketball game, it is known to use electronic devices, in particular for the detection of a ball entering the basketball basket. These devices comprise sensor elements to detect any passage of a ball in the basket for example from above.
On peut citer à ce titre la demande de brevet
Dans le brevet
Le brevet
Le brevet
Durant le chronométrage d'une partie de basketball, et dans l'intervalle de temps principalement des deux dernières minutes de jeu, un joueur d'une équipe arrive à scorer, c'est-à-dire à marquer un panier. Le haut de la balle traverse l'anneau du panier de basket, et ainsi le jeu s'arrête. Les officiels de table sont responsables pour prendre la décision lorsqu'il faut arrêter le jeu, et non l'arbitre. Par conséquent, même le signalement par sifflet de l'arbitre peut ne pas être pris en compte pour arrêter un temps de jeu. Durant une partie, il peut encore être prévu que le commissaire de jeu requiert du marqueur assistant d'ajouter le temps à l'horloge du jeu. Dans ces conditions, le rythme du jeu est ralenti à un moment critique de la partie. Il est donc nécessaire de trouver une solution, qui garantit un arrêt de jeu précis dès l'instant où la balle passe à travers l'anneau du panier de basketball, ce qui est un objet de l'invention.During the timing of a basketball game, and in the time interval of the last two minutes of play, a player on a team is able to score, that is, to score a basket. The top of the ball goes through the ring of the basketball net, and so the game stops. Table officials are responsible for making the decision when to stop the game, not the referee. Therefore, even the whistle signal of the referee may not be taken into account to stop play time. During a game, it may still be expected that the game commissioner requires the assistant marker to add the time to In these conditions, the rhythm of the game is slowed down at a critical moment of the game. It is therefore necessary to find a solution, which guarantees a precise stoppage of play from the moment the ball passes through the ring of the basketball basket, which is an object of the invention.
L'invention a donc pour but de pallier les inconvénients de l'état de la technique susmentionné en proposant un procédé de chronométrage d'une partie de basketball. Pour ce faire, au moins un capteur optique est disposé à proximité ou sur le panier de basketball pour détecter une balle entrant dans le panier au cours de la partie pour arrêter le temps de jeu.The invention therefore aims to overcome the disadvantages of the state of the art mentioned above by providing a method of timing a basketball game. To do this, at least one optical sensor is disposed near or on the basketball basket to detect a ball entering the basket during the game to stop playing time.
A cet effet, l'invention concerne un procédé de chronométrage d'une partie de basketball, qui comprend les caractéristiques définies dans la revendication indépendante 1.To this end, the invention relates to a method of timing a basketball game, which comprises the features defined in the independent claim 1.
Des étapes particulières du procédé de chronométrage sont définies dans les revendications dépendantes 2 à 5.Particular steps of the timing method are defined in
Un avantage du procédé de chronométrage réside dans le fait qu'une détection optique par un détecteur optique de balle dans le panier et/ou une détection visuelle par traitement informatique est prévue de manière à détecter le passage de la balle dans l'anneau du panier de basketball afin de fournir un signal de détection à un dispositif de chronométrage pour arrêter le temps de jeu. Le détecteur optique de balle est au moins un capteur optique disposé sur le panier de basketball ou sur un support de connexion du panier à un panneau de basketball ou même sur ledit panneau de basketball pour détecter le passage de la balle dans l'anneau du panier. La détection visuelle se compose d'une ou plusieurs caméras de type cinétique (Kinect®) avec une reconnaissance de mouvement et de profondeur, ainsi que d'un système à infra-rouge intégré.An advantage of the timing method lies in the fact that optical detection by an optical bullet detector in the basket and / or visual detection by computer processing is provided in order to detect the passage of the bullet in the ring of the basket. basketball to provide a detection signal to a timing device for stopping playing time. The optical bullet detector is at least one optical sensor disposed on the basketball hoop or on a connection support of the basket to a control panel. basketball or even on said basketball board to detect the passage of the ball through the ring of the basket. Visual detection consists of one or more kinetic cameras (Kinect®) with motion and depth recognition, as well as an integrated infrared system.
Avantageusement dans une conception simple du système de chronométrage, le détecteur optique de balle comprend au moins un capteur optique de lumière et une source de lumière en regard du capteur, qui peuvent être disposés sur une surface de l'anneau du panier de basket ou intégrés dans l'anneau du panier de basket. La source de lumière disposée en regard et diamétralement opposée au capteur optique fournit au cours du jeu un rayon lumineux capté par le capteur optique. Le passage de la balle dans l'anneau du panier de basket interrompt momentanément la réception de lumière par le capteur optique. Cela permet de fournir un signal de détection suite à la réception ou non-réception du rayon lumineux au dispositif de chronométrage pour arrêter le temps de jeu.Advantageously in a simple design of the timing system, the optical bullet detector comprises at least one optical light sensor and a light source facing the sensor, which can be arranged on a surface of the ring basket basket or integrated in the ring of the basketball hoop. The light source arranged opposite and diametrically opposite the optical sensor provides during the game a light beam captured by the optical sensor. The passage of the ball in the ring of the basketball basket momentarily interrupts the reception of light by the optical sensor. This makes it possible to provide a detection signal following the reception or non-reception of the light beam at the timing device to stop playing time.
Avantageusement pour détecter précisément le passage de la balle dans le panier, le capteur optique du détecteur optique de balle peut être associé à une caméra du type cinétique du détecteur visuel avec traitement informatique de mouvement et de profondeur ou avec une caméra en couleur, une caméra infrarouge ou un dispositif défini LIDAR. Le dispositif LIDAR est aussi capable de déterminer la distance du capteur à la balle dans un espace bidimensionnel ou tridimensionnel. Dans ces conditions, il n'est pas nécessaire d'utiliser une source de lumière additionnelle placée sur l'anneau du panier de basket.Advantageously to accurately detect the passage of the ball in the basket, the optical sensor of the optical bullet detector can be associated with a camera of kinetic type of the visual detector with computer processing of movement and depth or with a color camera, an infrared camera or a defined device LIDAR. The LIDAR device is also capable of determining the distance from the sensor to the ball in a two-dimensional or three-dimensional space. Under these conditions, it is not necessary to use an additional light source placed on the basket basket ring.
Un chronométrage précis d'une partie de basketball est une des bases fondamentales dans le basketball moderne. Le système de chronométrage présenté connecte au moins un capteur optique de détection optique et/ou une détection visuelle de mouvement et de profondeur avec le dispositif de chronométrage et aide à améliorer la qualité du jeu en enlevant de potentielles erreurs humaines.Accurate timing of a basketball game is one of the fundamental bases in modern basketball. The presented timing system connects at least one optical sensing optical sensor and / or visual movement and depth detection with the timing device and assists in improving the quality of the game by removing potential human errors.
Avantageusement, il y a une facilité de montage et de calibration du détecteur de balle dans le panier en liaison avec le dispositif de chronométrage. Cela permet de fournir des interruptions de jeu rapidement et avec précision.Advantageously, there is an ease of mounting and calibration of the ball detector in the basket in connection with the timing device. This allows to provide game interruptions quickly and accurately.
A cet effet, l'invention concerne aussi un système de chronométrage d'une partie de basketball, qui comprend les caractéristiques définies dans la revendication indépendante 6.To this end, the invention also relates to a system for timing a basketball game, which comprises the characteristics defined in the
Des formes d'exécution du système de chronométrage sont définies dans les revendications dépendantes 7 à 17.Embodiments of the timing system are defined in dependent claims 7-17.
Les buts, avantages et caractéristiques du procédé et du système de chronométrage d'une partie de basketball selon l'invention apparaîtront mieux dans la description suivante d'au moins une forme d'exécution non limitative illustrée par les dessins sur lesquels :
- la
figure 1 représente un schéma bloc des composants d'un système de chronométrage d'une partie de basketball selon l'invention, - la
figure 2 représente schématiquement une vue tridimensionnelle d'un panier de basketball avec différents composants électroniques de détection d'une balle dans le panier selon l'invention, - la
figure 3 représente schématiquement une vue de côté d'un panier de basketball fixé à un panneau monté sur un poteau de fixation avec un détecteur optique de balle en liaison avec le dispositif de chronométrage du système de chronométrage selon l'invention, et - la
figure 4 représente schématiquement une vue du positionnement des caméras de type cinétique du dispositif visuel pour la détection de mouvement et de profondeur selon l'invention.
- the
figure 1 represents a block diagram of the components of a timing system of a basketball game according to the invention, - the
figure 2 schematically represents a three-dimensional view of a basketball basket with different electronic components for detecting a ball in the basket according to the invention, - the
figure 3 schematically represents a side view of a basketball hoop fixed to a panel mounted on a fixing post with an optical bullet detector in connection with the timing device of the timing system according to the invention, and - the
figure 4 schematically represents a view of the positioning of the kinetic-type cameras of the visual device for motion and depth detection according to the invention.
Dans la description suivante, tous les éléments d'un système de chronométrage d'une partie de basketball, qui sont bien connus de l'homme du métier dans ce domaine technique, ne seront relatés que de manière simplifiée.In the following description, all elements of a timekeeping system of a basketball game, which are well known to those skilled in this technical field, will be reported in a simplified manner.
La
Comme représenté schématiquement en
Le système de chronométrage 1 peut encore comprendre un terminal d'entrée 6, qui est mis en fonction pour contrôler le temps de jeu notamment par des officiels. Le dispositif de chronométrage est donc lié au terminal d'entrée pour le contrôle du temps de jeu. Cependant il peut aussi être imaginé que le dispositif de chronométrage 2 est intégré dans le terminal d'entrée 6, qui peut être disposé sur une table de jeu à côté du terrain de jeu. Le système de chronométrage 1 peut encore comprendre un ou plusieurs dispositifs de commande à distance 5 pour contrôler sans fil le dispositif de chronométrage au moyen d'un objet portable, par un officiel du jeu, et une unité de contrôle du temps 7 par action d'un sifflet d'un arbitre de jeu, qui est reliée au dispositif de chronométrage. Bien entendu, cette unité de contrôle du temps peut être constituée d'un sifflet d'arbitre électronique capable de transmettre un signal radiofréquence au dispositif de chronométrage signalant des arrêts de jeu.The timing system 1 may further comprise an
Le détecteur optique de balle dans le panier 3 peut être relié par câble ou fil électrique ou au moyen d'une communication sans fil au dispositif de chronométrage 2. Le détecteur optique de balle 3 comprend essentiellement au moins un capteur optique disposé à proximité ou sur le panier de basketball. Ce capteur optique peut être un capteur de lumière, qui est composé d'au moins une diode photo-réceptrice ou un pixel, ou d'un réseau de diodes photo-réceptrices ou des pixels. Avec un détecteur visuel de balle 4, le capteur optique peut être une caméra de type cinétique avec un traitement informatique de mouvement et de profondeur de la balle.The optical bullet detector in the
Le capteur optique du détecteur optique de balle 3 peut aussi être une caméra en couleur, une caméra infrarouge ou un dispositif défini LIDAR de manière à prendre différentes images de la balle au moment de son passage dans le panier de basketball et être en mesure de transmettre le signal de données relatif aux images au dispositif de chronométrage 2. Ce dispositif LIDAR permet de capter la lumière et son intensité pour déterminer la distance du capteur à la balle dans un espace bidimensionnel ou tridimensionnel. Le détecteur optique de balle dans le panier 3 peut aussi comprendre une source de lumière en regard d'un simple capteur optique de lumière comme expliqué ci-après en référence aux
Les
La
Il peut être défini que le panier de basketball peut faire partie du système de chronométrage. Le détecteur optique de balle 3 et/ou le détecteur visuel de balle 4 sont en liaison avec le dispositif de chronométrage 2 du système de chronométrage. Les dimensions et le positionnement des composants montrés sur les
Le panier de basketball comprend un anneau 10 à travers lequel doit passer la balle 20 depuis dessus pour marquer un but, et un filet 11 attaché en périphérie intérieure ou extérieure de l'anneau 10 pour recevoir la balle entrant par l'anneau. La balle 20 traverse complétement le filet 11 ouvert vers le bas. L'anneau 10 est relié à un panneau de basketball 13 par un support de connexion 12. L'anneau 10, le support de connexion 12 et le panneau 13 sont en matériau solide résistant aux chocs. Le panneau de basketball 13 est encore relié par des barres 14 à un poteau de fixation 15, qui est généralement fixé verticalement en bordure du terrain de basketball. Les barres 14 et le poteau 15 sont généralement en matériau métallique. Bien entendu, deux ensembles à panier de basketball sont placés de chaque côté du terrain de jeu pour une partie de basketball.The basketball basket includes a
Le détecteur optique de balle 3 comprend notamment au moins un capteur optique 31 disposé sur une surface de l'anneau ou intégré en partie dans l'anneau avec une portion de réception de lumière visible sur ou dans l'anneau 10 du panier de basketball. Ce capteur optique 31 peut être placé à une première position sur une surface de l'anneau ou dans l'anneau 10 sur le pourtour de l'anneau depuis la fixation de l'anneau 10 au support de connexion 12. Bien entendu il peut aussi être envisagé de placer le capteur optique 31 directement sur le support de connexion 12 ou aussi en contact du panneau de basketball 13. Dans ce cas de figure, il peut s'agir d'un capteur optique sous forme de caméra comme indiqué ci-devant.The
Aux
Le détecteur optique de balle 3 peut encore comprendre au moins une source de lumière 32 disposée sur une surface de l'anneau 10 ou intégrée en partie dans l'anneau. La source de lumière 32 peut être placée à une seconde position sur ou dans l'anneau 10 sur le pourtour de l'anneau depuis la fixation de l'anneau 10 au support de connexion 12. De préférence, la source de lumière 32 est disposée dans une position diamétralement opposée au capteur optique 31 sur une même surface de l'anneau et en regard dudit capteur optique 31.The
La source de lumière 32 est nécessairement dépendante de la technologie utilisée du capteur optique 31. Cette source de lumière 32 peut être une diode électroluminescente pour émettre un rayon R de couleur définie, telle qu'en infrarouge, en direction du capteur optique 31 ou une source d'émission d'un faisceau laser. Le capteur optique 31 est ainsi capable de capter l'émission de lumière générée par la source de lumière si aucune balle ne traverse l'anneau 10 du panier de basketball.The
Le détecteur visuel de mouvement et de profondeur 4 peut, obligatoirement ou non, être associé au détecteur optique de balle 3. La détection visuelle et son traitement informatique peut indépendamment valider le passage de la balle dans le panier par la technologique de type cinétique (Kinect®) associée.The visual movement and
Le détecteur optique de balle 3 comprend une unité d'acquisition non représentée, mais qui peut être intégrée à la structure du capteur optique 31, pour recevoir un signal de détection de lumière du capteur optique. Une unité de traitement du signal de détection peut encore être prévue dans le détecteur optique de balle 3 et/ou dans un détecteur visuel de balle 4 ou dans le dispositif de chronométrage 2, ou faire partie directement de l'unité d'acquisition. L'unité de traitement exécute des algorithmes détectant qu'une balle passe à travers l'anneau 10 du panier. Une communication de données Data peut être effectuée depuis le détecteur optique de balle 3 notamment depuis le capteur optique 31 à destination du dispositif de chronométrage 2. La communication de données Data peut concerner la détection d'une balle, qui traverse l'anneau 10 du panier de basketball durant le jeu, pour arrêter le temps de jeu dans le dispositif de chronométrage 2. Le détecteur optique de balle 3 peut donc être relié au dispositif de chronométrage 2 par câble ou fil électrique passant à travers le panneau 13, les barres 14 et le poteau 15, ou au moyen d'une communication sans fil par des signaux radiofréquences.The
L'unité de traitement peut aussi être située proche du capteur optique 31, notamment sur le support de connexion 12 du panier de basketball. Cette unité de traitement peut aussi être disposée directement dans le dispositif de chronométrage 2, comme une partie du logiciel de chronométrage.The processing unit may also be located close to the
Le détecteur optique de balle 3 et/ou le détecteur visuel 4 de reconnaissance visuelle par une ou plusieurs caméras de type cinétique a pour but de détecter le moment où la balle 20 entre dans l'anneau 10 et le moment ou la partie supérieure de la balle est au niveau ou au-dessous de l'anneau, et déjà en partie dans le filet 11. Le capteur optique 31 détecte la lumière de la source de lumière 32 tant qu'aucun objet n'est disposé entre le capteur optique 31 et la source de lumière 32. Par contre dès que la partie la plus basse de la balle 20 pénètre depuis dessus dans l'anneau 10 du panier, le capteur optique 31 ne détecte plus la lumière provenant de la source de lumière 32 et en informe l'unité de traitement ou le dispositif de chronométrage.The
Par la suite pour pouvoir arrêter le temps de jeu dans le dispositif de chronométrage 2, le capteur optique 31 doit à nouveau détecter le rayon R de lumière provenant de la source de lumière 32. Il détecte à nouveau le rayon R de lumière une fois que la partie haute de la balle 20 est au niveau ou au-dessous de l'anneau 10 du panier, où se trouvent le capteur optique 31 et la source de lumière 32. Un signal de détection est fourni au dispositif de chronométrage 2, qui prend en compte la nouvelle détection de lumière du capteur optique après le début de la non-réception de lumière afin d'arrêter le temps de jeu. Le dispositif de chronométrage 2 comprend un logiciel de chronométrage, qui peut détecter l'instant de la non-réception du rayon R de lumière par le capteur optique et ensuite la réception à nouveau du rayon R de lumière, pour arrêter le temps de jeu. Cela signifie, que la balle 20 a pénétré dans l'anneau 10 du panier et un but est également comptabilisé.Subsequently, in order to be able to stop the playing time in the
L'unité d'acquisition du détecteur optique de balle 3 en liaison au capteur optique 31 peut aussi mesurer une différence d'intensités lumineuses pour pouvoir détecter la réception ou la non-réception du rayon R de lumière de la source de lumière 32 afin de s'affranchir de la lumière ambiante. Pour plus de précision de mesure, il peut aussi être prévu de placer à différentes positions sur une surface de l'anneau 10, plusieurs capteurs optiques 31 et plusieurs sources de lumière 32 de couleur différente. Chaque capteur optique est en regard et diamétralement opposé à une source de lumière respective. Une communication de données avec le dispositif de chronométrage 2 est effectuée depuis le détecteur optique de balle 3 en relation à la détection de chaque capteur optique 31.The acquisition unit of the
Il peut être prévu pour le système de chronométrage 1 d'associer ou non une détection visuelle par des caméras de type cinétique (Kinect®) par détection de mouvement et de profondeur afin de détecter le passage de la balle dans l'anneau du panier.It may be provided for the timing system 1 to associate or not a visual detection by kinetic-type cameras (Kinect®) by motion detection and depth to detect the passage of the ball in the basket ring.
Il est encore à noter que, dans le cas d'une communication sans fil de données ou commandes avec le dispositif de chronométrage 2, le détecteur optique de balle 3 et/ou le détecteur visuel de balle 4 peuvent être activés par le dispositif de chronométrage 2 à tout moment avant ou durant le temps de jeu.It should also be noted that, in the case of a wireless communication of data or commands with the
Il est encore à noter qu'il peut être prévu une étape de calibration du détecteur optique de balle 3 et/ou du détecteur visuel de balle 4 après l'installation du système de chronométrage et avant le début du comptage de temps de jeu du dispositif de chronométrage 2. La calibration est nécessaire s'il n'est utilisé qu'un capteur optique, tel qu'une caméra ou un dispositif LIDAR ou d'un système de détection visuelle par au moins une caméra de type cinétique (Kinect®). Les étapes de calibration sont d'une part la détection de la bordure de l'anneau via l'adaptation de forme et d'autre part la détection du volume sur la base de la forme détectée. Concernant le temps de fonctionnement, il y a une détection d'objet, tel que la balle, avec la présence dans le volume détecté, et une reconnaissance de forme pour s'assurer de la précision de l'objet détecté, qui passe à travers l'anneau du panier. Comme indiqué ci-dessus, l'information de plusieurs capteurs optiques combinant des technologies variées peut être utilisée pour améliorer la précision de mesure, ainsi qu'une ou plusieurs caméras de type cinétique (Kinect®) pour la détection visuelle.It should also be noted that a calibration step of the
A partir de la description qui vient d'être faite, plusieurs variantes du procédé et du système de chronométrage d'une partie de basketball peuvent être conçues par l'homme du métier sans sortir du cadre de l'invention définie par les revendications. Le capteur optique de lumière peut comprendre deux surfaces de réception de lumière disposées verticalement l'une sur l'autre de manière à permettre de différencier la direction de passage d'une balle dans le panier de basketball au cours de la partie. S'il est utilisé un capteur optique et une source de lumière, cette dernière peut émettre un rayon lumineux par intermittence ou par flash. Plusieurs capteurs optiques et plusieurs sources de lumière peuvent être placés sur une surface supérieure et/ou inférieure de l'anneau du panier de basketball pour permettre également de déterminer la direction de passage de la balle dans le panier de basketball. La détection visuelle de mouvement peut être associée ou être utilisée indépendamment de la détection optique pour détecter le passage de la balle dans le panier.From the description that has just been given, several variants of the method and timing system of a basketball game can be devised by those skilled in the art without departing from the scope of the invention defined by the claims. The optical light sensor may comprise two light-receiving surfaces arranged vertically on one another so as to make it possible to differentiate the direction of passage of a ball in the basketball hoop during the game. If an optical sensor and a light source are used, the latter can emit a light beam intermittently or by flash. A plurality of optical sensors and multiple light sources may be placed on a top and / or bottom surface of the basketball basket ring to also determine the direction of passage of the ball through the basketball basket. The visual motion detection may be associated or used independently of the optical detection to detect the passage of the ball through the basket.
Claims (17)
le procédé comprenant les étapes consistant à :
the method comprising the steps of:
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WO2015143314A1 (en) * | 2014-03-20 | 2015-09-24 | Shooter's Touch, Llc | Basketball performance monitoring system |
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US20190076713A1 (en) | 2019-03-14 |
US10695634B2 (en) | 2020-06-30 |
EP3453430B1 (en) | 2020-09-02 |
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