BALL DETECTION SYSTEM, AND METHOD FOR DETECTING AN EVENT INVOLVING A BALL

Description

[0001] The invention relates to a ball detection system, a method for detecting a specific event involving a ball during a ball game, and a method for verifying the conformity of specific events during an example with a set of predetermined external values.

[0002] In many sports where a moving object is played towards a goal or similar, there is a need to determine with high reliability whether the object has passed through the goal or not. Examples of such sports include football (soccer), handball, and ice hockey. Various technical aids are traditionally used, for example, sensors or cameras, to determine whether the object has crossed a goal area or similar. Some well-known technologies in the field of football are listed below as examples.

[0003] German patent DE 200 11 144 U1 discloses a so-called goal control system in which several high-speed cameras are mounted on the two goalposts or the crossbar of a goal, each directed inwards towards the goal line. The distance between the individual cameras is sufficiently small so that when the ball crosses the goal line, it is always detected. The images from the high-speed cameras are evaluated by means of image processing electronics.

[0004] Another technology involves installing so-called beam grids or a light barrier pattern on the goalpost or crossbar of a goal, so that it is possible to detect when a ball crosses a goal line. Such technologies are known, for example, from DE 203 04 144 U1 or EP 2 085 123 A1. The disadvantage of this technology is that it cannot be reliably determined when the ball has completely crossed a goal line, because according to the usual rules of the game, a goal is only awarded when this has occurred.

[0005] From WO 01 / 41884 A1, a video processing system is known that can track a ball during ball games in order to determine or predict the ball's position or trajectory on a playing field. With suitable evaluation of the image data from the associated video cameras, specific game situations or rule events can be analyzed.

[0006] Goal detection is possible not only with a camera but also with sensor technology, whereby a transmitter or similar device is integrated into the ball. Accordingly, when the ball crosses a goal line, it sends a signal to at least one receiver attached to a goalpost or crossbar, thus registering a goal. Such technology is known, for example, from EP 1 596 945 B1. A disadvantage of this method is the placement of the transmitter inside the ball, because vibrations or similar factors can compromise the reliable transmission of signals over time.

[0007] US 2012 / 238383 A1 describes a device capable of automatically detecting game actions occurring near a goal in sports or activities where the objective is to score a goal. The device is capable of automatically and in real time triggering audio or visual animations adapted to the detected game situation. It also describes a method for processing information suitable for qualifying a game action, based on information collected by various types of sensors placed in the playing area.

[0008] FR 2 806 924 A1 teaches a method for detecting and confirming the release of the goal line in ball games; using a surveillance camera which indicates when the ball's trajectory, as recorded by the cameras and determined by a computer, approaches the goal line.

[0009] WO 2007 / 006083 A1 discloses a game of chance played in connection with a sporting competition such as rugby union or rugby league, in which a ball is used and in which a scoring area in the sporting competition, such as the goalposts, is divided into a number of scoring zones in a grid, the outcome of the game being determined by the position or positions of the ball or a movement or movements of the ball into the goal zones. The game of chance can be applied to several games, including other football games and field games such as cricket or baseball.

[0010] According to a system offered by the applicant of the present patent application, the ball during a football match is captured by a plurality of cameras arranged around the playing field and mounted on the stadium roof or the so-called "catwalk." These cameras are connected to a high-performance computer, which can track and record the movement of all objects on the playing field, and in particular the ball. The system continuously tracks the ball's position and automatically records it in three dimensions (X, Y, and Z), especially when the ball is near a goal or the goal line defined by the goal's frame. If the ball has completely crossed this goal line, a central evaluation unit of the computer generates a goal signal and sends it to the referee's receiver watch in the form of an encrypted optical signal.Furthermore, all camera images of goal events are recorded to validate a goal or a generated sound signal and to enable further media use. However, this system is limited to the applicant's use for recognizing goals scored and verifying the legality of these goals or goal events.

[0011] From DE 10 2011 120 368 A1 a gate recognition system with the features of the preamble of claim 1 and a corresponding method for recognizing a gate with the features of the preamble of claim 9 is known.

[0012] Accordingly, the invention is based on the objective of creating a technology that enables an extended analysis of game events for ball games that consist of shots of the ball on, beside or over the goal, when the ball has, for example, completely passed through or over a goal line plane or the goal line.

[0013] This problem is solved by a ball detection system having the features of claim 1, by a method having the features of claim 9, and by a method having the features of claim 11. Advantageous embodiments are defined in the dependent claims.

[0014] A ball detection system according to the present invention is used in a ball game with a playing field and comprises a plurality of cameras with which an entire plane can be monitored. This plane is coplanar to and includes a goal line plane defined by the frame of a goal, and comprises at least one computer unit with which the cameras are connected and controllable. The computer unit is programmed such that the image data from the cameras can be evaluated by the computer unit and a hit signal can be generated by the computer unit based on this image data when a ball has completely crossed the entire plane from the direction of the playing field. The entire plane contains several specific sectors located both within the goal line plane and outside, laterally adjacent to the frame of the goal and above the frame of the goal.In this case, the hit signal can be assigned a designation corresponding to a specific sector of the overall plane that has previously been completely traversed by the ball.

[0015] Similarly, the present invention also provides a method for detecting a specific event during a ball game, in which a total plane, which is coplanar to and includes a goal line plane defined by the frame of a goal, is monitored by a plurality of cameras whose beam path is aligned towards the total plane. A computer unit controls the cameras and evaluates the image data from these cameras, generating a hit signal based on the image data from the cameras when a ball has completely crossed the total plane from the direction of the playing field.Within the overall plane, several specific sectors are included, located both within the goal line plane and outside, to the sides of the goal frame and above the goal frame. The hit signal is assigned a designation corresponding to a specific sector of the overall plane that the ball has previously traversed completely. In this context, it should be noted that the "specific event" detected by the method discussed here consists of the ball having completely traversed a specific sector of the overall plane (whether within, above, or to the sides of the goal frame), and in this case, a hit signal is generated as described.

[0016] The invention is based on the essential insight that the aforementioned ball detection system or the corresponding method makes it possible to detect, store, and evaluate game events that are not only caused by shots into the goal where the ball completely crosses the goal line plane defined by the goal frame, but also by shots to the side or over the goal where the ball completely crosses a specific sector of the overall plane that is coplanar to the goal line plane. This technically improved localization of the ball enables a more comprehensive analysis of game events, particularly those caused by shots to the side or over the goal, which, according to the prior art, especially as described in DE 10 2011 120 368 A1, are not otherwise taken into account.

[0017] It should be specifically noted here that a "hit signal" according to the present invention is always present or generated by the computer unit when the ball has completely traversed a specific sector of the overall plane. In this context, a hit signal can correspond to a regular goal signal if the ball has completely traversed the goal line plane, which is enclosed by or part of the overall plane. However, a hit signal is also generated if the ball is shot next to or over the goal and, as explained, completely traverses the overall plane.

[0018] Regardless of whether, during a shot on goal, the ball either completely crosses the goal line (resulting in a legal goal), or instead crosses the crossbar or flies past a goalpost to the left or right, completely crossing the goal line, the majority of cameras reliably detect the specific sector of the overall plane that the ball has completely traversed. Based on the camera image data, a hit signal is then generated, and this hit signal is assigned a label corresponding to the specific sector of the overall plane that the ball has previously completely crossed. This sector can be located next to or above the goal frame, or it can be a sector within the frame that is therefore part of the goal line plane.

[0019] During the course of a ball game, numerous events can occur in which the ball either enters the goal or completely crosses the goal line. Accordingly, the computer unit generates a multitude of hit signals. In an advantageous embodiment of the invention, these hit signals can be stored in a memory from which they can then be retrieved for further evaluation or analysis.

[0020] In an advantageous embodiment of the invention, it is possible to generate a series of values ​​with a specific number from a plurality of hit signals. This number of hit signals can be determined, for example, from the start of the playing time of the ball game, from the start of a specific half of the ball game (e.g., from the start of the second half of a football match), or from the end of the playing time of the ball game or a specific section of the ball game, whereby in the latter case, those hit signals are taken into account that occurred most recently from the end of the playing time or the predetermined section of the ball game until the specified number of values ​​is reached.

[0021] In an advantageous embodiment of the invention, it can be provided that the hit signals generated by the computer unit during the course of the ball game are used to create an arrangement of values ​​with a predetermined orientation in the horizontal, vertical, and / or diagonal direction. Such an arrangement of values ​​is created, for example, in a virtual space in two-dimensional form. Based on this, it is possible, particularly after the end of the ball game or its conclusion, to perform a comparison with predetermined external values, which is explained in more detail below.

[0022] Based on the ball detection system described above and the method for detecting a specific event during a ball game, the present invention also provides a method for checking the conformity of a specific event during a ball game with a set of predetermined external values, comprising the following steps: i) Generating a plurality of hit signals using a ball detection system according to any one of claims 1 to 8 and / or using a method according to claim 9 or 10, ii) Forming a series of hit signals generated according to step i), iii) Capturing a set of predetermined external values, iv) Comparing the hit signal series according to step ii) with the set of predetermined external values ​​according to step iii), and v) Generating an indicator signal when a match is found between the hit signal series according to step ii) and the set of predetermined values ​​according to step iii).

[0023] With the last-mentioned method according to the present invention, it is possible to compare a hit signal or a plurality of such hit signals, which have been generated by the computer unit during the course of a ball game, with the set of predetermined external values ​​in order to determine whether these hit signals correspond to the predetermined external values. If so, a corresponding display signal is then generated according to step v).

[0024] In an advantageous further development of the latter method according to the invention, it can be provided that in step ii) an arrangement with a predetermined orientation in the horizontal, vertical, and / or diagonal direction is formed with the hit signals. Similarly, it can be provided that the external values ​​according to step iii) are arranged in such an arrangement, i.e., with an orientation in the horizontal, vertical, and / or diagonal direction. This corresponds, for example, to an arrangement of values ​​in two dimensions, as is known in the game of "Bingo".

[0025] In an advantageous further development of the aforementioned method according to the invention, the external values ​​according to step iii) can be entered or set via an online or customer portal. In this way, for example, a visitor to a football match or a purchaser of an admission ticket to such a match can predefine or determine a set of external values ​​associated with their admission ticket. Alternatively, it is also possible for a spectator of the football match to select predetermined external values ​​and their arrangement from home, for example, as part of a paid service. External values ​​can also be set with regard to the aforementioned arrangement in a horizontal, vertical, and / or diagonal direction.In this regard, it is understood that the buyer of a ticket, or alternatively a spectator watching from home, must define these predetermined external values ​​before the start of the game and must complete this process before the start of the game. Alternatively, it is possible for the predetermined external values ​​to be determined automatically by an algorithm.

[0026] In an advantageous further development of the latter method according to the invention, it can be provided that the external values ​​according to step iii) are printed on an admission ticket for the ball game or assigned to such an admission ticket if, for example, it is purchased online. In any case, it is understood that in this case the external values ​​are assigned to an admission ticket or a plurality of such admission tickets in the same way. In other words, different external values ​​and / or in different arrangements in the horizontal, vertical and / or diagonal direction are assigned to one or more admission tickets for the ball game. Based on this, the assignment of predetermined external values, if necessary, can be carried out.In conjunction with a selected arrangement in a horizontal, vertical, and / or diagonal direction, a set of identical tickets can be formed for an entry ticket to the ball game, with the holder of the entry ticket being the first to report their win after the signal has been generated in step v). This also applies, mutatis mutandis, to the possibility that a spectator from home, via an online or customer portal (preferably a paid service), determines or sets the external values ​​and their arrangement, or that such a spectator or participant is assigned a set of predetermined external values ​​and their arrangement by an algorithm. In any case, a reporting option (e.g.,(by telephone notification to a customer service center or by electronic notification to a customer portal) to preempt other spectators or participants who are holders of an admission ticket whose set of predetermined external values ​​also matches the hit signal series according to step ii).

[0027] In an advantageous embodiment of the invention, steps i) to v) of the aforementioned method are executed automatically by a computer unit. In this context, it is understood that steps iv) and v) in particular are performed only after the end of the playing time of the ball game or after the conclusion of a specific phase of the ball game (e.g., after the end of the first half of a football match). Additionally or alternatively, it can be provided that steps iv) and v) in particular are performed in real time. This means that these steps are performed after a specific event, e.g., when a legal goal, in which the ball has completely crossed the goal line of a goal frame, has been detected by the multiple cameras, or when the ball has been shot wide of or over the goal.

[0028] According to an advantageous embodiment of the invention, it can be provided that, in the latter method, in particular steps iv) and v), are also carried out with regard to several ball games that take place on several match days and / or in different stadiums. In this case, steps iv) and v), on which an evaluation of the hit signals according to step ii) is based in comparison with the predetermined external values ​​according to step iii), are distributed across different match days of a specific football league and / or across different games that take place on the same match day in different stadiums.

[0029] The cameras used to monitor the entire playing area, including the designated sectors, are preferably high-speed cameras capable of capturing several hundred images per second, up to 500 images per second. This high number of images per second ensures that a ball, even if moving at very high speed, is always captured by these cameras. This multiple cameras also guarantees that the ball is detected even if one or more players are within the field of view of a camera.

[0030] It is understood that the features mentioned above and those to be explained below can be used not only in the combinations specified, but also in other combinations or on their own, without leaving the scope of the present invention.

[0031] The invention is shown schematically below with reference to an embodiment in the drawing and is described in detail with reference to the drawing.

[0032] They show: Fig. 1 is a schematically simplified top view of a playing field, around the edge of which a plurality of cameras of a ball detection system according to the invention are arranged for monitoring a total plane running coplanar to a goal line plane spanned by a goal frame; Fig. 2 is a simplified perspective partial view of the playing field. Fig. 1, wherein the cameras are mounted on an edge area of ​​a stadium roof; Fig. 3 a simplified schematic representation of components of a ball detection system according to a further embodiment of the invention; Fig. 4 a perspective view of an overall plane that is coplanar to and includes a goal line plane spanned by a goal frame, wherein this overall plane is monitored by a ball detection system and a method according to the present invention; Fig. 5 a highly simplified schematic view to illustrate how a playing object in the form of a ball can be detected by a camera relative to a plane formed from the overall plane or a goal line plane encompassed by it; Fig. 6 a view of the overall plane of Fig. 4 from the front, from the perspective of the playing field Fig. 1 , to clarify the specific sectors of the overall plane; Fig. 7 a perspective view of the overall plane of Fig. 6; and Fig. 8 a two-dimensional arrangement of hit signals generated by a ball detection system and a method according to the present invention.

[0033] The invention is suitable for any ball sport in which a playing object in the form of a ball is played towards an opponent's goal, wherein a total plane is coplanar to and includes a goal line plane defined by the frame of a goal. This means that when the ball is played towards a goal, it is also played in the same way in the direction of the total plane, which is coplanar to the goal line plane of that goal. The following description of an embodiment of the invention relates to the field of football, where the playing object is accordingly referred to as a ball. However, it should be noted that the reference to the field of football does not limit the invention, but that the invention can also be applied to ball games, e.g., handball, rugby, American football, field hockey, or polo.

[0034] In Fig. 1 A simplified top view shows a football pitch 1. A plurality of cameras 2 of a ball detection system 10 according to a first embodiment are arranged around the pitch 1, generating image data of the pitch 1. Each camera 2 generates a pixel matrix of the pitch or a part of the pitch 2.

[0035] The cameras 2 are preferably synchronized with each other, meaning that at least two cameras 2 simultaneously capture the same area of ​​the playing field 1. The orientation of the cameras 2 is preferably chosen for the playing field 1 such that the entire area of ​​the playing field 1 is captured by the cameras 2 without gaps or blind spots.

[0036] Fig. 2The simplified diagram illustrates the possible placement of cameras 2 in a football stadium. The cameras 2 are conveniently mounted at regular intervals along an edge of the stadium roof, the so-called "catwalk." This allows for aerial imagery of the pitch 1. This has the advantage that there are few or no obstructions to the cameras 2's view, ensuring a good overview of the pitch 1.

[0037] In contrast to the representation of Fig. 2 According to another (not shown) embodiment of the ball detection system 10, it is also possible to install the cameras 2 in a different location than the "catwalk", for example at a distance from each other that is not uniform.

[0038] Fig. 3The figure shows, in a highly simplified form, a ball detection system 10 according to a further embodiment of the invention with its essential components. Fig. 3 For the sake of simplicity, only half of a football pitch 1 is shown. The ball detection system 10 according to this embodiment comprises a plurality of cameras B1-B7, each arranged at a distance from the goal 3. These cameras B1-B7 monitor both a goal line plane TLE spanned by the frame of the goal 3 and a total plane GE that is coplanar to and includes the goal line plane TLE (see also [reference to be added]). Fig. 4 ).

[0039] The ball detection system 10 according to Fig. 3 includes at least one computer unit 13 to which cameras B1-B7 are connected, for example via a high-performance fiber optic cable or the like, as in Fig. 3indicated by a dotted line. In this respect, cameras B1-B7 are connected to this computer unit 13 via signal technology and can be controlled by it if required. It is understood that the ball detection system 10 is also connected according to Fig. 1 or 2 is equipped with a (not shown there) computer unit to which the cameras 2 are connected in terms of signal technology and can also be controlled by this unit if necessary.

[0040] The computer unit 13 includes a memory 14 and is connected to a display device 16, which can display, for example, a score or a goal signal, as explained in more detail below. Furthermore, the computer unit 13 can communicate with a mobile receiver 15, which may be, for example, a referee's wristwatch. Communication between the computer unit 13 and the mobile receiver 15 preferably takes place via a wireless communication link that is suitably encrypted.

[0041] As already explained, in Fig. 3 For the sake of simplicity, only one half of football pitch 1 is shown. It is understood that cameras B1-B7 are positioned similarly at the goal located in Fig. 3 not shown, these cameras are also connected to computer unit 13, for example via a fiber optic cable or the like.

[0042] Regarding cameras B1-B7, it is understood that these are as described in Fig. 3 The cameras are shown positioned around one end of the playing field at a sufficient height above the stadium floor, so that preferably there is no obstruction of view or restriction of the beam path of these cameras towards goal 3. Such an arrangement of cameras B1-B7 can be ensured by suitable tripods. Alternatively, it is also possible to mount cameras B1-B7 on the stadium roof or similar structure, as is done for cameras 2 according to [reference to relevant document]. Fig. 2 This is illustrated. It is understood that the number of cameras B1-B7 differs from the representation in Fig. 3 It can also be larger or smaller than seven.

[0043] Fig. 4Figure 3 shows a gate 3 in a perspective view. Gate 3 consists of a frame with two vertical posts 3a and a horizontal crossbar 3b attached to them. "TLE" denotes a goal line plane, which is shown in Fig. 4 The goal line is indicated by a diagonal hatching (from bottom left to top right) and is spanned by the frame of gate 3. The goal line plane TLE borders exactly on a rear edge of a goal line that runs between the two posts 3a of the goal. Furthermore, in the Fig. 4 The overall plane GE is shown, indicated here by diagonal hatching (from bottom left to top right) and running coplanar to the goal line plane TLE. Specifically, the overall plane GE extends along the entire goal line TAL (see also Fig. 7 ) and also above gate 3, with the goal line plane TLE being included in the overall plane GE.

[0044] In Fig. 4Three trajectories or path curves S1, S2, S3 are shown as examples, representing the possible movements of a ball 4 (see figure). Fig. 5 ) in the direction of gate 3. These trajectories will be explained in detail below in connection with the evaluation of the image data from cameras 2 and B1-B7.

[0045] It should be specifically noted here that with cameras 2 or B1-B7 of the ball detection system 10 according to Figs. 1-3 In particular, the entire planes GE are also monitored, each of which runs coplanar to a goal 3 and the associated goal line plane TLE. This allows cameras 2 and B1-B7 to reliably detect, if the ball 4 is shot towards goal 3, whether the ball 4 has completely traversed the entire plane GE.

[0046] Fig. 5 In principle, this shows a simplified view of the monitoring of level E by cameras 2 (see below). Fig. 1 , Fig. 2 ) or B 1 -B 7 (see Fig. 3 ), where this plane E is formed by the overall plane GE or the goal line plane TLE, as part of the overall plane GE. A camera takes an image of the plane GE or TLE while a ball 4 is shot from direction S and consequently completely crosses this plane GE or TLE. Due to the high-speed property of the cameras already explained above, it is possible to take an image for the moment as soon as the ball 5 has completely crossed the plane GE or TLE. In Fig. 5 An image captured at precisely this moment is illustrated. In this case, the computer unit 13 of the ball detection system 10 generates a hit signal TS. Thus, by evaluating the image data from cameras 2 and B1-B7, it can be reliably determined whether the ball 4 has completely traversed the entire plane GE.

[0047] The Fig. 6Figures 7 and 7 show a front view and a perspective view, respectively, of the overall plane GE from the perspective of the playing field 1, and illustrate that the overall plane GE has specific sectors. In the embodiment shown here, the overall plane GE is, for example, divided into a total of nine sectors, each assigned a Roman numeral. Specifically, these are: - Sector I: an area far to the left of the left post 3a (see below). Fig. 4 ), - Sector II: an area immediately to the left of the left post 3a, - Sector III: a left area within the goal line plane TLE, adjacent to the left post 3a, - Sector IV: a right-hand area within the goal line plane TLE, adjacent to the right post 3a (see Fig. 4 ), - Sector V: an area immediately to the right of the right post 3a, - Sector VI: an area far to the right of the right post 3a, - Sector VII: an area above bar 3b (see Fig. 4 ), - Sector VIII: an area diagonally to the left above bar 3b, and - Sector IX: an area diagonally to the right above bar 3b.

[0048] Regarding the representations of specific sectors I to IX in Fig. 6 and Fig. 7 It is emphasized that this is merely an example. This means that the overall GE level can also be divided into fewer or more than 9 sectors, which is coordinated with the recording and monitoring by the majority of cameras 2 or B1-B7.

[0049] Within the overall plane GE, a plurality of specific sectors I-IX are contained, which are located both within the gate line plane TLE and outside, laterally adjacent to and above the frame 3a, 3b of gate 3. Thus, there are several sectors within the gate line plane TLE, e.g., sectors III and IV in Fig. 6 , several sectors to the left of the framework, e.g. sectors I and II in Fig. 6 , several sectors to the right of the framework, e.g. sectors V and VI in Fig. 6 , and several sectors above the framework, e.g. sectors VII, VIII and IX of the framework. The invention now works as follows:

[0050] With the help of cameras 2 (see Fig. 1-2 ) or B 1 -B 7 (see Fig. 3The two overall planes GE, each coplanar to the goal line plane TLE of goal 3, are continuously monitored during the playing time of a football match. If, during the playing time of the football match, the ball 5 is shot towards goal 3, it can be determined by monitoring an overall plane GE using cameras 2 or B1-B7 and based on an evaluation of their image data whether the overall plane GE has been completely traversed by the ball 4. Such a complete traversal of the overall plane GE by the ball 4, if it was shot from the direction S from the playing field 1, is in the Fig. 5 This has already been illustrated and explained. A complete crossing of the entire plane GE can occur, for example, if the ball 4 (left or right) is shot laterally past the goal 3 and the goal line TAL (cf. Fig. 7) completely traversed, or when the ball 4 is shot into the goal 3 itself and thereby crosses the goal line plane TLE. This must be seen in the context that the goal line plane TLE forms part of the overall plane GE or is enclosed by the overall plane GE.

[0051] In the event that, as explained above, the ball 4 has completely traversed the entire plane GE, a hit signal TS is generated by the computer unit 13. For the present invention, it is important that such a hit signal TS is then assigned a designation corresponding to a specific sector I-IX, namely that sector of the entire plane GE which has just been completely traversed by the ball 4.

[0052] The following example illustrates this: During a football match, ball 4 is shot directly to the left of the left post 3a of goal 3 and completely crosses the goal line TAL. This is equivalent to ball 4 having completely traversed sector II of the overall plane GE. Accordingly, the resulting hit signal TS is assigned the designation or value II (equivalent to "2").

[0053] Another example: During the game, the ball is shot into goal 3, specifically into its bottom right corner. This means that the ball 4 has completely crossed sector IV of the overall plane GE (or the goal line plane TLE). Therefore, the resulting hit signal TS is assigned the designation or value IV (equivalent to "4").

[0054] According to the logic mentioned above, a hit signal TS - mutatis mutandis - is assigned the designation of the remaining sectors of the overall plane GE if the ball 4 has completely crossed one of these sectors when shooting towards goal 3.

[0055] It should be specifically noted here that, for the purposes of the present invention, it makes no difference whether the ball 4 is shot laterally past the goal 3 (= sectors I, II, V or VI, and / or also sectors VIII and IX), over the goal 3 (= sector VII), or into the goal 3 (= sectors III or IV) for the generation of a hit signal TS. The decisive factor is solely that the ball 4 has completely traversed the entire plane GE in one of the aforementioned sectors I-IX, and consequently, a hit signal TS is generated with the designation of the corresponding sector that the ball 4 has just completely traversed during this event.

[0056] During the course of a football match, it is possible that the ball 4 is shot many times to the side of or over the goal 3, completely crossing the goal line TAL, or that many goals are scored where, according to the known rules, the ball completely crosses the goal line plane TLE, as part of the overall plane GE. In any case, the computer unit 13 then generates a plurality of hit signals TS, which are stored in the memory 14.

[0057] For the evaluation and analysis of the generated hit signals TS, it is possible to create a series with a specific number of values ​​from these hit signals TS. These values ​​can correspond to the designation of a respective hit signal TS, namely depending on which sector of the overall plane GE the ball 4 completely traversed when generating that hit signal TS. Based on this, it is also possible to arrange such a specific number of values, formed from the individual hit signals TS, into a sequence with a predetermined orientation in the horizontal, vertical, and diagonal directions. This is shown in the example of Fig. 8 This illustrates what is now explained in detail: Following the example of Fig. 8 There are a total of nine values ​​for hit signals TS, arranged in a two-dimensional 3x3 matrix, similar to a bingo card. The nine values ​​according to Fig. 8These could be the first nine hit signals TS generated by computer unit 13 from the start of a football match, specifically whenever the ball 4 crosses a certain sector of the overall plane GE. The arrangement of the hit signals TS according to the example of Fig. 8 This can be done by first filling in the first row from left to right, then the second row from left to right, and finally the third row from left to right. For the course of the game, this is equivalent to the following events, in the order mentioned: The ball 4 was shot directly past the left post 3a (value "II"), in accordance with the trajectory S 1 of Fig. 4, Ball 4 was shot far to the left of the left post 3a (value "I"), Ball 4 was shot directly to the right of the right post 3a (value "V"), in accordance with trajectory S 3 of Fig. 4 , Ball 4 has been shot over the crossbar 3b (value "VII"), Ball 4 has been shot into goal 3, namely in the right area of ​​it (value "IV"), Ball 4 has been shot diagonally to the right over the crossbar 3b (value "IX"), Ball 4 has been shot directly to the left of the left post 3a (value "II"), Another goal is scored by shooting the ball into the left area of ​​goal 3 (value "III"), and finally: Ball 4 is shot over the crossbar 3b (value "VII").

[0058] For the above-explained example of an arrangement of hit signals TS according to Fig. 8It may be intended that only the first nine hit signals (TS) generated from the start of the game are considered. Alternatively, it may be intended that fewer or, in particular, more than nine hit signals are also considered, which are then aligned horizontally, vertically, and diagonally to each other, similar to bingo, e.g., in the form of a 4x4 matrix, a 5x5 matrix, a 6x6 matrix, etc. For example, a "super bingo" matrix with 10x10 values ​​(or even more values) could also be used to arrange and evaluate the hit signals.

[0059] Alternatively, it could be stipulated that the number of hit signals TS be determined from the end of the playing time of a football match or a specific period of play (for example, the first half). For example, it could be stipulated that the last nine hit signals TS, e.g., for the arrangement of Fig. 8 , are taken into account those that were generated before the end or expiry of the playing time of the football match, or those that were generated before the end of the first half.

[0060] In any case, by means of the present invention a series or an arrangement of hit signals TS that have been generated during the course of a football match and which are arranged, for example, in an arrangement according to Fig. 8have the results brought in, then compare them with a set of predetermined external values, which are preferably also provided in an arrangement with horizontal, vertical and diagonal orientation, in any case in accordance with the arrangement chosen for the generated hit signals TS.

[0061] Example: If the generated hit signals are arranged according to a 3x3 matrix (see Fig. 8If a 3x3 matrix is ​​chosen, a 3x3 matrix is ​​also selected for the arrangement of the external values ​​for the sake of simplified comparability. It is understood that, regardless of the chosen arrangement (which could also be a 4x4, 5x5, 6x6 matrix, etc.), the external values ​​can be freely selected by a viewer via an online or customer portal, for example, when purchasing a ticket for an upcoming football match, or by a viewer from home as part of a selection process, particularly one that requires payment. It can also be provided that an algorithm automatically assigns a set of predetermined external values ​​and their arrangement to either a ticket or multiple tickets. This means that a selection of external values ​​and their arrangement (e.g., in a 3x3, 4x4, 5x5, etc. matrix) is possible.) is uniquely assigned to a specific admission ticket or participant in the selection service, particularly the paid service. In other words, predetermined external values ​​with an "individual" arrangement are assigned to an admission ticket for an upcoming football match or, for example, to a participant's customer number from home. It is also possible that these predetermined external values ​​and their "individual" arrangement are assigned to multiple admission tickets in the same way.

[0062] Using a method according to the present invention, it is possible, after the completion of either a predetermined segment of a football match (e.g., at the end of the first half) or after the completion of the entire match, to compare the arrangement of hit signals TS generated during the match with the set or arrangement of external values ​​assigned to an admission ticket or a specific user remotely. This can also be carried out for multiple football matches played on different match days of a football league or for multiple football matches taking place on the same match day in different stadiums. In the event of a match, a display signal is generated, which may optionally also show the number or code of the admission ticket or a customer number of a spectator, for example on the display device 16 (see Figure 16). Fig. 3Accordingly, the present invention implements a "football bingo" in technical terms.

Claims

1. Ball detection system (10) for a ball game with a playing field (1), comprising a plurality of cameras (2; B1-B7), with which an overall plane (GE) can be monitored, wherein the overall plane (GE) runs coplanar to a goal line plane (TLE) spanned by a framework (3a, 3b) of a goal (3) and includes this goal line plane (TLE), at least one computing unit (13), with which the cameras (2; B1-B7) are connected in terms of signals and are activatable, wherein the computing unit (13) is configured in terms of programming in such manner that the image data from the cameras (2; B1-B7) can be evaluated by the computing unit (13) and a hit signal (TS) can be generated by the computing unit (13) based on this image data when a ball (4) has completely traversed the overall plane (GE) from the direction of the playing field (1), characterised in that, within the overall plane (GE) there is contained a plurality of determined sectors (I-IX) that are located both within the goal line plane (TLE) and outside to the side next to the framework (3a, 3b) of the goal (3) and above the framework (3a, 3b) of the goal (3), and in that the hit signal (TS) can be assigned a designation corresponding to a determined sector (I-IX) of the overall plane (GE), which has previously been completely traversed by the ball (4).

2. Ball detection system (10) according to claim 1, characterised in that the computing unit (13) comprises a memory (14) in which at least one hit signal (TS) can be stored.

3. Ball detection system (10) according to claim 2, characterised in that a plurality of hit signals (TS), which are generated during a duration of the ball game, provided that the ball (4) completely traverses the overall plane (GE) each time, can be stored in the memory (14).

4. Ball detection system (10) according to claim 3, characterised in that a series with a determined number of values is formed from the plurality of hit signals (TS).

5. Ball detection system (10) according to claim 4, characterised in that the series is formed from a plurality of hit signals (TS), a) which hit signals (TS) have been generated since the start of the playing time of the ball game, or b) which hit signals (TS) have been generated from the start of a determined playing time of the ball game, preferably the second half, or c) wherein for this series, those hit signals (TS) are taken into account that were last generated starting from an end of the playing time of the ball game or a determined playing duration of the ball game.

6. Ball detection system (10) according to one of claims 4 to 5, characterised in that an arrangement of values with a predetermined orientation is formed in a horizontal, vertical and / or diagonal direction using the hit signals (I-IX).

7. Ball detection system (10) according to one of the preceding claims, characterised in that the plurality of cameras (B1-B7) are each arranged at a distance from the goal (3) and in particular outside a playing field (1).

8. Ball detection system (10) according to one of the preceding claims, characterised in that the hit signal (TS) is transferable via a transmission path to an in particular mobile receiving unit (16) and is displayable thereon.

9. Method for detecting a determined event during a ball game, in which an overall plane (GE), which runs coplanar to a goal line plane (TLE) spanned by a framework (3a, 3b) of a goal (3) and includes this goal line plane (TLE), is monitored by a plurality of cameras (2; B1-B7), which are aligned with their beam path in the direction of the overall plane (GE), wherein a computing unit (13) activates the cameras (2; B1-B7) and evaluates the image data from these cameras, wherein the computing unit (13) generates a hit signal (TS) based on the image data from the cameras (2; B1-B7) when a ball (4) has completely traversed the overall plane (GE) from the direction of the playing field (1), characterised in that, within the overall plane (GE) is a plurality of sectors (I-IX) contained that are located both within the goal line plane (TLE) and outside to the side next to the framework (3a, 3b) of the goal (3) and above the framework (3a, 3b) of the goal (3), and in that the hit signal (TS) is assigned a designation corresponding to a determined sector (I-IX) of the overall plane (GE), which has previously been completely traversed by the ball (4).

10. Method according to claim 9, characterised in that the hit signals (TS) generated during the duration of the ball game are stored in a memory (14) and can be retrieved from this memory (14).

11. Method for verifying the conformity of determined events during at least one ball game with a set of predetermined external values, comprising the steps: i) generating a plurality of hit signals with a ball detection system (10) according to one of claims 1 to 8 and / or with a method according to claim 9 or 10, ii) forming a series of hit signals (TS) generated according to step i), iii) recording a set of predetermined external values, iv) comparing the hit signal series according to step ii) with the set of predetermined external values according to step iii), and v) generating a display signal when in step iv) a match is determined between the hit signal series according to step ii) and the set of predetermined values according to step iii).

12. Method according to claim 11, characterised in that in step ii) an arrangement with a predetermined orientation is formed in a horizontal, vertical and / or diagonal direction using the hit signals (TS).

13. Method according to claim 11 or 12, characterised in that the external values according to step iii) a) are provided in an arrangement with a predetermined orientation in a horizontal, vertical and / or diagonal direction, or b) are entered via an online or customer portal or are determined by an algorithm, or c) are printed on an entry ticket for the ball game or are assigned to such an entry ticket in a unique manner.

14. Method according to one of claims 11 to 13, characterised in that the steps i) to v) are carried out automatically by a computing unit (13).

15. Method according to one of claims 11 to 14, characterised in that, in particular, the steps iv) and v) a) are carried out after the end of the playing time of the ball game, after the end of a determined game section of the ball game and / or after a determined hit signal (TS), or b) are carried out in relation to a plurality of ball games that take place on different days of play and / or at different stadiums.