EP2310099A1

EP2310099A1 - System and method for the automatized analysis of the course of a competition

Info

Publication number: EP2310099A1
Application number: EP09757297A
Authority: EP
Inventors: Christian Holzer; Walter Englert; Oliver Braun; Mirko Janetzke; Florian HÖFLINGER; Thorsten Habel
Original assignee: Cairos Technologies AG
Current assignee: Cairos Technologies AG
Priority date: 2008-06-06
Filing date: 2009-06-04
Publication date: 2011-04-20
Also published as: US20110156868A1; DE102008027103A1; WO2009146914A1

Abstract

The invention relates to a system which comprises at least one active or passive position determination system that transmits data regarding the position of at least one athlete to a main evaluation unit; and a main evaluation unit that stores the received position data in a database, automatically determines a movement pattern comprising at least the distance covered and the average speed based on said position data and represents the movement pattern on a display.

Description

System and method for the automated analysis of a competition course

The present invention relates to a system and method for automated analysis of movements and interactions of multiple athletes and sports equipment by means of multiple active and passive positioning systems.

In professional as well as recreational sports, increasingly modern, preferably imaging technology is used to analyze a competition or training.

By evaluating the image material, it is possible to improve the performance of an athlete, such. G., The run length traveled by inm or its speed, with video tracking usually being used in the case of speed estimation. Furthermore, it is possible to gain clues from the data obtained on future useful training focuses.

In the case of team sports, such as football or basketball, video recordings are also used to analyze movement patterns of an opposing team, for example in a counterattack, and to turn their own game tactics on it.

Further, in the case of team sports such as ice hockey, recorded video sequences may be used to score contentious game situations such as fouls or confusing goal situations.

In running or swimming, the recorded video recordings are preferably used for analysis and optimization of motion sequences.

Disadvantages of the video recordings used today are the susceptibility to masking and image quality with rapidly changing lighting conditions. In addition, many previously known systems do not provide accurate velocity and acceleration information and have problems automating the evaluation process.

For example, the question of whether a goal has been scored can only be decided when the ball is clear and at a certain angle from the goal line. Furthermore, especially in complex scenarios in which several people approach each other or in which very fast movements occur, the Automated analysis of video sequences is often flawed because it can happen that people can no longer be resolved and thus confusion can occur.

It is therefore the object of the present invention to more accurately determine the position of one or more athletes.

Another object of the present invention is to more accurately determine the movement of an athlete.

Another object of the present invention is to more accurately determine the position of a sports equipment.

Another object of the present invention is to more accurately determine the interaction between the athlete and the sports equipment.

Another object of the present invention is to determine from the data on the movement of an athlete recommendations for future Traiπingseinheiten.

Another object of the present invention is to determine from the data on the interaction between athletes and sports equipment recommendations for future training sessions.

Another object of the present invention is to make a computer game more realistic and interactive by providing highly accurate data about the movement of an athlete and the interaction between the athlete and the sports equipment.

These objects are achieved by the subject-matter of the independent claims.

Preferred embodiments are subject of the dependent claims.

The present invention solves these problems by merging data from various sensors and signal transmitters attached to athletes, sports facilities and sports equipment, thereby enabling automated evaluation of athlete movements and game play. The data obtained can then, virtually similar to a computer game, be displayed virtually, with different menu items additional performance information can be displayed. In the following, preferred embodiments will be explained in more detail with reference to the accompanying drawings. Hereby show:

Figure 1 is a schematic representation of active and passive

Positionierungsungssystemβ and associated entrainedβ and central evaluation units according to a preferred embodiment of the present invention;

Figure 2 is a schematic representation of one with a passive

Positioning system equipped sports venue according to a preferred embodiment of the present invention;

Figure 3 is a schematic representation of an active

Positioning system equipped sports facility according to a preferred embodiment of the present invention;

Figure 4 is a schematic representation of the principle, such as a calibration of a

Transmitter and a receiver can be done according to a preferred embodiment of the present invention;

FIG. 5 shows a schematic illustration of an athlete equipped with acceleration sensors according to a preferred embodiment of the present invention;

Figure 6 is a schematic representation of a ball with two three-dimensional magnetic field sensors according to a preferred embodiment of the present invention; and

Figure 7 is a schematic representation of a sports device with pressure sensors according to a preferred embodiment of the present invention; and

FIG. 8 shows a schematic representation of a sports device with an area to be hit in accordance with a preferred embodiment of the present invention; and

Figure 9 is a schematic representation of a display on a central

Evaluation unit according to a preferred embodiment of the present invention. Figure 1 shows a schematic representation of active and passive positioning systems and associated entrained sowie and central evaluation units according to a preferred embodiment of the present invention.

Therein, an athlete (100) is equipped with one or a combination of a plurality of passive or active positioning systems (110).

The passive positioning systems (110a) consist of one or more receivers, each receiver being connected to the athlete (100). The receivers receive signals from one or more transmitters (120) stationary during the measurement process. The receivers forward the received signals to a central evaluation unit (200) which calculates the position of the athlete (100) from the received signals. As an alternative to transmission to the central evaluation unit (200), the received signals can be locally stored, evaluated and / or displayed on a tracking evaluation unit (210).

The active positioning systems (110b) consist of one or more transmitters, each transmitter being connected to the athlete (100). Each transmitter transmits signals which are received by a plurality of stationary receivers (130) and forwarded to the central evaluation unit (200).

When using a plurality of position determination systems, the position data in the central evaluation unit (200) are associated and fused, for example by means of a Kalman filter.

The power supply of the non-stationary system components is preferably carried out by means of a battery or rechargeable battery. When using passive transponders you can do without your own energy source.

The central or entrained evaluation units are capable of evaluating, displaying and storing the received data. Furthermore, the data can be forwarded to other units by radio or by cable or other means of transmission. Preferably, the wireless transmission via WLAN and the wired transmission via USB. This makes it possible to establish an Internet connection, to send the existing data by email, to make it available to other participants as a web cast event or to transfer via mini-USB cable to a PDA or a mobile phone. FIG. 2 shows a schematic representation of a sports facility equipped with a passive positioning system according to a preferred embodiment of the present invention.

In it, an athlete (100) is equipped with an ultrasound transmitter (111). The ultrasonic transmitter (111) transmits ultrasonic waves of a specific sound intensity for a predetermined time. In order to prevent several ultrasonic transmitters from interfering continuously, the transmission times are chosen randomly.

The ultrasonic waves are received by ultrasonic sensors (131) installed at the edge of the field. In order to be able to unambiguously assign the measured values to the athlete (100), the ultrasound transmitters (111) transmit either at a specific frequency or in pulsed mode, which enables coded transmission of an identification.

Sound intensity and identification are then forwarded to a central evaluation unit (200), or discarded if the ultrasonic waves of several ultrasonic transmitters have overlapped. If the measured sound intensity of an ultrasound transmitter (111) can be assigned to an athlete, it is possible to determine the distance between ultrasound transmitter (111) and ultrasound sensor (131) from the known relationship between sound wave propagation and decrease of the sound intensity in the radial direction.

Are the ultrasonic sensors (131) on the edge of the field (140) and the athlete (100) in the field and the positions of the ultrasonic sensors (131) are known, which is

Position of the athlete (100) already from the measured by two ultrasonic sensors

Sound intensity determinable if the distance circles around the sensors intersect only once within the playing field. The assignment of at least three succeeds

Measurements, the position of the athlete (100) can be determined independently of the playing field.

Since ultrasonic waves have only a short range, the athlete can additionally be equipped with an infrared light emitting light source, for example in the form of a light emitting diode (LED). To avoid overlays, the LED begins to emit infrared light of a specific intensity of light at random times. In this case, the transmission interval and the repetition frequency are preferably selected as a function of the number of LEDs such that on average at least two measured values per 0.1 s can be received without interference. The light intensity is detected by several, for example, at the edge of the sports center distributed, infrared light sensors. If there is no overlap in the transmission times of two or more infrared light sources, the measured values are forwarded to the central evaluation unit.

In order to be able to unambiguously assign the transmitted measured values to an infrared light source, either pulsed infrared light is used and an encoded identification is sent or infrared light of a specific wavelength is used. The position determination of the athlete is then analogous to the method described above for the position determination with ultrasonic sensors.

Since the location by means of a light source disturbances, such. B. covers or overlays of different light frequencies may be exposed, the athlete may be additionally equipped with a GPS receiver. This GPS receiver can send the received position data as well as a unique identification number either to the central evaluation unit or to an accompanying evaluation unit.

The entrained evaluation sends after receiving a request signal, the stored position data to the central evaluation or allows the central evaluation directly access the data, preferably via USB or WLAN.

Since the update rate of a GPS receiver for fast movements may be too low and the GPS signal is not available indoors, the position may be derived from the measurement of a known magnetic field.

FIG. 3 shows a schematic representation of a sports facility equipped with an active positioning system according to a preferred embodiment of the present invention.

In it, an athlete (100) is equipped with a three-dimensional magnetic field sensor (112). This measures an alternating magnetic field generated by several coils (120).

In this case, a coil is preferably used to measure the magnetic field lines. Alternatively, however, it is also possible to use a Hall sensor, a magnetoresistive sensor, a Josephson contact or the like. The measured values β are sent to the central evaluation unit (200) or the accompanying evaluation unit (210). If the measured values are sent to the central evaluation unit, then the reception time and a unique identification are added, which enables the evaluation unit to unambiguously assign the received measured values to a coil and to a magnetic field sensor.

The identification of a coil is determined with simultaneous operation of all coils on the measured frequency of the alternating magnetic field or in sequential operation over the time of measurement, the Bestromungsdauer the coils and the order in which the coils are energized known. During simultaneous operation of the coils, the measured signals are separated either by bandpass filters or by a Fourier analysis.

One way to determine the position of the athlete is to compare field strength, field direction and phase angle of the magnetic field with previously stored data. In this case, field strength, field direction and phase angle are calculated in advance for a plurality of spatial points and stored in a database on the entrained or the central evaluation unit. The measurements are then compared to the values in the database and then the best fit record is selected. The position associated with this record is used as the athlete's position.

Alternatively, the position determination can be determined from the known relationship between propagation of a magnetic field and radial decrease of the magnetic field strength corresponding to the distance of the athlete to each magnetic field coil. The position determination then takes place analogously to the position determination with ultrasonic sensors.

Another possibility is to determine the position by setting up and solving the magnetic field equations.

In the event that ferromagnetic materials or power cables interfere with the field geometry, the field geometry is measured and the detected interference can then be taken into account in the position determination.

If several passive or active positioning systems are operated in parallel, it may happen that the data transmission of a first position determination system to the central evaluation unit by the Data transmission of a second positioning system is disturbed. Therefore, the data of the positioning systems are transmitted at random times, so that no permanent disturbance of the transmission is expected.

Alternatively, the measured values are buffered on the accompanying evaluation unit and later transferred to the central evaluation unit. For communication between active or passive positioning systems and the entrained or central evaluation unit, in particular radio signals in the 2.4 GHz band come into consideration.

The radio signals can also be used to determine the position of the stationary transmitter or receiver relative to each other. In this case, analogously to the previously described method, the radio signal strength of all sensors stationary during the measuring process is measured by the central evaluation unit. This measurement is performed in at least three different locations.

FIG. 4 shows a schematic representation of the principle of how a calibration of a transmitter and a receiver can take place, according to a preferred embodiment of the present invention.

Therein, a central evaluation unit (200) is operated in a calibration mode and measures the radio strength of the stationary transmitters (120) or receivers (130) at three different positions and calculates therefrom the relative positions of the transmitters or receivers relative to one another. After determining a coordinate origin (150), all position information in this coordinate system can be displayed.

If GPS position information is available, a global coordinate system, such as WGS84, can also be used.

The position data can be used in the presence of a video camera, this automatically mounted between camera stand and camera

To control electric motors so that a specific area of the sports facility in the

Camera picture can be seen. For this, the position of the camera to the sports venue must be known, which is preferably analogous to the position determination described above

Sensors and receiver happens. Then, the orientation of the camera is determined by aiming at a fixed point, which is preferably the already known position of a transmitter or receiver. From this context, the camera can be aligned to any point by the horizontal and vertical Deviation of the current camera orientation is determined and the camera is rotated by these deviations by the electric motors. If additionally a movement of the camera relative to its current position is possible, for example by a carriage moving on rails, it can also be controlled in such a way that a specific view of the area is achieved.

For example, it is possible to automatically keep track of the ball leading player in football or the runner leading the runner field or any other athlete in the picture.

Furthermore, the determined position data can be used to stabilize or improve the hitherto practiced video-based tracking (video tracking) of an athlete or sports equipment.

In this case, for example, the trajectories determined by the position determination systems are compared with the trajectories determined by the video tracking and reassigned correctly in the event of confusion. Furthermore, it is possible to determine the image areas in which an athlete is located already before evaluating the image data and to send them to the image processing, whereby the latter can already search the correct areas for contours of a person. This also ensures that, in particular, the relevant image areas are evaluated and that these can be analyzed at an increased rate in comparison to the normal image analysis.

Another use of the position data is the detection of typical games actions. For example, in football or basketball, penalties or free throws are easily identifiable by the position of the ball or the penalties or free-throw performers. For this purpose, typical features of actions are stored in the database, for example, two players in 16-meter space and ball at the penalty spot for a penalty position. In the evaluation unit, the current position data are compared with the stored characteristics and thus identified games typical actions.

Furthermore, from the position data, the speed and acceleration of the athlete can be estimated. This is particularly interesting because it can give the athlete, for example, information on whether he has to work on his maximum speed or better on his stamina, and how he should optimally divide a match. When skiing or snowboarding, for example, the traveled trajectory and the number of driven right and left turns can be determined. Furthermore, the time between individual curves can be determined and used to compare this data with the data of other athletes, or to detect driving errors.

Although in the present specification an athlete is equipped with the position determining system, it is clear that the same method is applicable to objects of another kind or persons in other contexts than sport events.

For example, magnetic field position determination could also be used in determining a person's path in a supermarket. This would include, for example, the shopping cart with active or passive

Positioning systems, but preferably be equipped with the magnetic field-based positioning system described, since this is largely insensitive to the inevitable occurring in the supermarket covers.

Another application is in the camera work or the lighting control at events such as theater or concerts. For this purpose, for example, the actors or musicians would be equipped with active or passive positioning systems, but preferably with the described magnetic-field-based positioning system, as this is insensitive to interference, such as artificial lighting or sound waves.

FIG. 5 shows a schematic representation of an athlete equipped with acceleration sensors according to a preferred embodiment of the present invention.

This aspect of the present invention is to be regarded as an independent invention. It can be combined with the aspects mentioned above and below, but it can also be realized on its own.

In order to enable a movement analysis of an athlete (100), acceleration sensors (400) are attached to the extremities of the athlete (100), which forward their data to the entrained or the central evaluation unit (200). From the acceleration sensors, it is possible in particular, highly accurate relative position and speed changes over short time intervals means Integrating the acceleration vector after compensating the acceleration due to gravity. Since the alignment of the acceleration sensor must be known to compensate for the acceleration due to gravity, three-dimensional rotation rate sensors or sensors are additionally used to measure the earth's magnetic field or, alternatively, the sensor is mounted in three dimensions such that an orientation relative to the acceleration of gravity remains constant, for example by using a gyroscope.

Thus it is possible, for example, to reconstruct an exact image of the movement during long jump or high jump or in sports such as gymnastics and to derive recommendations for action from this. In the case of a high jump, for example, this could be the information that the athlete is pushing his legs up too early or too late.

Since many sports not only the athlete, but also a sports equipment is of great relevance, it is necessary to analyze the movement of the sports equipment and the interaction with the athlete.

Therefore, the sports equipment such as a ball may be equipped with an RF-ID chip. This makes it possible to observe movement taking place in the vicinity of electromagnetic wave emitting and receiving radio units. The radio units can be installed, for example, in movable elements, such as pylons or even in stationary elements, such as in gate posts.

The identification of the transponder located in the ball is received by a radio receiver and forwarded to the central or entrained evaluation. This signal can then be used, for example, to

To track the movement of the ball near pylons, and thus for example the

Exceeding a goal line, which is demarcated by means of two pylons to detect.

The received data can then be used by the central evaluation unit to determine the number of fallen goals.

If the range of the RF-ID chip is not sufficient, the ball can be equipped with a three-dimensional magnetic field sensor as an alternative to the RF-ID chip. In this case, a coil is preferably used to measure magnetic field lines. Alternatively, a Hall sensor, a magnetoresistive sensor, a Josephson contact or the like may be used.

Preferably, the magnetic field in the center of the ball is thus measured. To the vibration-free placement of the magnetic field sensor exactly in the center of the ball ensure the magnetic field sensor can be positioned by means of ropes in the ball center.

As an alternative to the placement of the sensors in the center of the ball, two magnetic field sensors are provided in a preferred embodiment.

FIG. 6 shows a schematic representation of a ball with two three-dimensional magnetic field sensors.

The magnetic field sensors according to Figure 6 are mutually attached to the inner wall of the ball (500). In this case, both magnetic field sensors are cast into module disks (510), one module disk (510a) being mounted on the valve and the other module disk (510b) being a counterweight on the opposite side.

The readings of both sensors are used to determine the expected reading at the center of the ball (500). This can be done in the case of the magnetic field strength, for example by simple averaging.

Both module disks (510) are connected to flex boards. The module disc (510a) on the valve carries, in addition to the magnetic field sensor, a radio transmitter with antenna and a CPU. On the opposite module disc (510b) sits the battery (520), which is mounted so that it lies on the side that points into the ball.

In order to defuse high accelerations, both module disks sit on rubber nubs (530), which absorb most of the momentum.

This configuration can also be used in an American football. There, the data of the two sensors can be additionally used to determine the orientation of the ball.

The magnetic field sensor or sensors are used to determine the position of the ball on the playing field by measuring the magnetic fields generated by a plurality of coils and sending the measured values to the central evaluation unit. The transmission can take place as required in real time or after buffering in the ball according to a request signal of the central evaluation unit. The magnetic field can be generated either by fixed magnetic field coils in the field or at the edge of the field, or by a mobile structure consisting of built-in a mat or in pylons magnetic field coils. The position determination then takes place analogously to the above-described method of determining the position of an athlete.

From the position data, for example, the trajectory, speed and acceleration of the ball can be calculated.

Furthermore, a ball-mounted RF-ID chip or a coil installed in the ball can also be used to detect ball contacts of an athlete.

In this case, for example, an electromagnetic signal source, preferably a Fuksender, attached to the athlete. The signals emitted by the radio transmitter stimulate the transponder installed in the ball, whereupon the latter emits signals itself. The received Transpondersigπal is forwarded either to the entrained evaluation or together with a unique identification of the athlete to the central evaluation.

Alternatively, the athlete is equipped with a magnetic coil which generates a magnetic field of a specific frequency. The magnetic field coil may for example be attached to the shin guards of a football player. The magnetic field can be detected by the magnetic field sensor installed in the ball. From the measured magnetic field strength, the distance can be calculated. From the specific frequency of the magnetic field, a unique identification of the coil can be determined. Both information is either stored in the ball or forwarded to the central evaluation unit.

This makes it possible, for example, to identify which player has scored the ball.

Another possibility is to equip the athlete with a radio transmitter short range, which transmits a unique identifier to the ball. The identifier can either be stored by the ball or forwarded directly to the evaluation unit, so that ball contacts can be assigned to an athlete.

Furthermore, the ball can be equipped with a pressure sensor, which enables the activation of the magnetic field sensors in the ball, for example by pressing the ball several times. Furthermore, the pressure sensor can do so be used during the game to control the air pressure inside the ball and to deliver an acoustic or visual warning signal when falling below the ideal air pressure.

The use of pressure sensors is also advantageous in other sports equipment for example in rackets, as they are used, for example, in hockey or baseball bats.

Figure 7 shows a schematic representation of a sports device with pressure sensors according to a preferred embodiment of the present invention.

This aspect of the present invention is to be regarded as an independent invention. Er0 may be combined with the aspects mentioned above and below, but it may be realized on its own.

Therein, pressure sensors (610) installed in a hockey stick (600) are used to determine at which point a puk (620) touches the hockey stick (600) and what pressure or force of fire that contact was associated with. This information is then forwarded to the remote or central evaluation unit. For forwarding the hockey stick (600) is equipped with a radio module (630), wherein radio module (630) is connected by cable to the pressure sensors.

Similarly, a baseball bat a shoe can be equipped with pressure sensors. Again, the position at which the ball touches the baseball bat or the shoe and the pressure occurring, forwarded to the entrained or central evaluation.

After the trajectory of the puke or ball has been transmitted to the central evaluation unit by means of a position determination method described above, the central evaluation unit can provide feedback on where the racket or shoe would have had to touch the puk or ball in order to achieve an optimal trajectory , This optimal point of contact is then displayed, for example in the form of LEDs (640) on the racket (600) or shoe or on a display of the entrained evaluation.

For this purpose, for example, the deviation of the determined trajectory of the ball or puke is calculated from an optimal trajectory, and the influence of the point of contact and of the momentum transfer on the trajectory of puck or ball is determined. From these Data is then an optimal point of contact and an optimal momentum transfer calculated and brought as a recommendation for action on the sports equipment or entrained ßn evaluation unit for display.

An analogous method is also advantageous in a sport such as basketball, where the ball is often thrown into the basket with the aid of the board. If the position of the athlete and / or the ball is known from one of the positioning methods described above, an optimal trajectory of the ball can be calculated and displayed to the athlete in the form of areas marked by liquid crystals or LEDs on the board.

FIG. 8 shows a schematic representation of a sports device with an area to be hit in accordance with a preferred embodiment of the present invention.

Therein a basketball board (700) is equipped with several LEDs (710) and a radio receiver (720). When the player (100) with the ball (500) is near the basketball board (700), the position of the ball (500) is determined by one of the methods described above. From the position is calculated by the evaluation unit (200), which area of the basketball board (700) must be taken to throw a basket. This area is indicated by LEDs (710) which allows the player to know where the ball must touch the board.

Radio can be used to transmit the area to be displayed, for example in the 2.4 GHz band.

To power the sensors and the radio unit for transmitting the measured data to the entrained or central evaluation unit, the sports equipment is equipped with a battery. Alternatively, a battery that can be recharged via an induction coil can be used. When using piezo pressure sensors, it is also possible to use the electromagnetic voltage generated by the pressure for signal transmission.

Depending on requirements, the entrained evaluation z. B. designed as a portable minicomputer, as equipped with a special software Mobiltelefoπ or as a PDA be, while the central evaluation unit is typically designed as a laptop or PC.

The central evaluation unit is able to merge all measured data, and to present it in a form similar to a computer game.

FIG. 9 shows a schematic representation of a display on a central evaluation unit according to a preferred embodiment of the present invention.

It depicts an image of a sports event in the form of animated figures (800), which, like the corresponding real athletes (100), move across the virtual sports venue (900). In this case, an athlete can be selected at any time (810), whereupon further data are made available. This may in particular be data on movement patterns, such as run, jump distance, speed, or also acceleration of the movement or individual limbs or interaction patterns such as shot, throw or punch of a ball, puke or any other sports equipment.

Furthermore, it is possible to compare the calculated motion or interaction pattern with stored motion or interaction patterns and represent deviations on the display of the evaluation unit. The deviations of the interaction patterns can in particular show differences in shot, throw, or stroke hardness, as well as different points of contact between, for example, shoe and ball or racket and ball or puk. Furthermore, the difference in the number of touches between athletes and sports equipment can also be displayed.

The existing information can also be used to provide a computer game with performance data of athletes in order to equip the characters with real data and thus to make real or to increase the game appeal. For this purpose, the determined data is sent to a computer, which stores the data in a database. The data in the database can then be used by a computer game to determine the capabilities of virtual athletes intended in the computer game. Furthermore, the data can be used to determine the possibility of interaction between athletes and one or more sports equipment.

Claims

claims

1. System consisting of,

at least one active or passive positioning system which transmits data on the position of at least one athlete to a central evaluation unit; and

a central Auswerteeiπheit that stores received position data in a database, automatically calculated a movement pattern consisting of at least the distance traveled and the average speed of the position data and displays the movement pattern on a display.

2. System according to claim 1, wherein the evaluation unit compares the calculated movement pattern with stored Bewegungsmustem and represents deviations on the display.

3. System according to claim 1, wherein in addition to the position data of the athlete position data of a sports device using at least one passive position determination system are transmitted to the central evaluation and in which the evaluation unit stores the received position data in a database and from the received position data an interaction pattern between Sports equipment and athletes and displays the interaction pattern on the display.

4. System according to claim 3, wherein the evaluation unit compares the calculated interaction pattern with stored in the database interaction patterns and represents deviations on the display.

5. System according to claim 1 or 3, wherein the evaluation unit sends the calculated data to a computer, which stores the data in a database of a

Computer game stores so as to determine the capabilities of provided in the computer game virtual athletes or their interaction with sports equipment.

6. System according to claim 1, wherein the position determination of an athlete by means of several attached to the field edge of a sports venue sensors, which the ultrasound intensity and / or the infrared light intensity of at least an athlete attached Sigπalquellen, measure and send this data to the central evaluation, which is calculated from the known relationship between radial decrease of sound intensity and / or light intensity, the position of the athlete is determined.

7. System according to claim 1 or 3, wherein the position of the athlete or the sports device by means of at least one attached to athletes or sports equipment magnetic field sensor which transmits data on the, generated by at least two magnetic field coils, alternating magnetic fields to an entrained or the central evaluation unit which either solves the magnetic field equation or determines the relationship between the decrease of the magnetic field strength and the radial distance between the magnetic field sensor and the magnetic field coil.

8. System according to claim 6 or 7, wherein the position data about athletes and / or sports equipment are used to align a camera to a desired area.

9. System according to claim 8, wherein an image processing based on the position data on athletes and / or sports equipment analyzes only individual areas of an image, but this analyzed at a higher frame rate than the normal frame rate.

10. The system according to claim 3 wherein the athlete and / or the sports equipment is equipped with an acceleration sensor, and the data of the acceleration sensor of the athlete on an entrained or on the central evaluation unit or the data of the acceleration sensor of the sports equipment on the central evaluation unit are integrated and used to improve position data and / or speed data.

11. System according to claim 3, wherein the sports device is a ball or a puk and in addition a shoe or a racket is equipped with at least one pressure sensor which sends the data of the pressure sensors to the entrained or the central evaluation unit, which transmits the data of the pressure sensors and the

Use position data of the ball to provide the athlete feedback on how to change his technique to achieve a desired ball or puck trajectory.

12. A method for displaying performance data of at least one athlete, comprising the method steps,

Sending data on the position of at least one athlete to a central evaluation unit;

Storing the received data in a database;

Calculating at least one movement pattern from the position data consisting of at least the distance covered and the average speed of an athlete; and

Display of the calculated movement pattern on a display of the evaluation unit.

13. The method according to claim 12, with the further method steps,

Comparing the calculated Bewegungsuπgsmusters with at least one further movement pattern; and

Display of deviations on the display.

14. The method according to claim 12, with the further method steps,

Sending position data of a sports device to the central evaluation unit;

Calculating an interaction pattern between sports equipment and athletes; and

Display the calculated interaction pattern on the display.

15. The method according to claim 14, with the further method steps,

Compare the calculated motion pattern with at least one other

Movement patterns; and

Display of deviations on the display.

16. The method according to claim 12, with the further method steps,

Sending the calculated data to a computer;

Storing the received data in a database; Defining the abilities of virtual athletes envisaged in a computer game or their interaction patterns with sports equipment.

17. Method according to claim 12, wherein the position of an athlete is determined by means of a plurality of sensors attached to the playing field edge of a sports venue, which sensors measure the ultrasound intensity and / or the infrared light intensity of at least one of them

Athler attached signal sources, measure, and send this data to the central evaluation, which is calculated from the known relationship between radial decrease of sound intensity and / or light intensity, the position of the athlete.

18. The method according to claim 12, wherein the position of the athlete or sports device is transmitted to the central evaluation unit by means of at least one magnetic field sensor generated by at least two magnetic field coils, which transmits either the magnetic field equation solves or determines the relationship between the decrease of the magnetic field strength and the radial distance between the magnetic field sensor and the magnetic field coil is determined.

19. The method according to claim 17 or 18 with the further method step,

Align a camera with an area specified by the athlete and / or sports equipment location information.

20. The method according to claim 19, wherein an image processing based on the position data on athletes and / or sports equipment analyzes only individual areas of an image, but this analyzed at a higher frame rate than the normal frame rate.

21. The method according to claim 12, with the further method steps,

Sending the data of one or more accelerometers attached to athletes and / or sports equipment;

Integrate the data on a carried or on the central evaluation unit Fusion of the position data and / or the velocity data with position data of at least one other system by means of a Kalman filter.

22. The method according to claim 14, wherein the sports device is a ball or a puk and in addition a shoe or a racket is equipped with at least one pressure sensor S, with the further method steps,

Sending the data to the entrained or the central evaluation unit;

Calculating the deviation of the determined trajectory of the ball or puke from an optimal trajectory;

Determining the influence of the point of contact and momentum transfer on the trajectory of the puke or ball;

Calculating an optimum touch point and an optimal momentum transfer;

Display of a recommended action derived from the calculated data on the sports equipment or the entrained evaluation unit.

23. System for determining the position of an athlete, consisting of

a plurality of attached to the field edge of a sports venue sensors, which measure the ultrasound intensity and / or the infrared intensity of at least one athlete signal sources, and send this data to a central evaluation, which from the known relationship between radial decrease of sound intensity and / or light intensity position of

Athletes calculated.

24. System for determining the position of a person or an object consisting of

at least one attached to a person or to an object magnetic field sensor, which data on the, of at least two

Magnetic field coils generated, alternating magnetic fields to a entrained or a central evaluation sends, which either solves the magnetic field equation or the relationship between the decrease of the magnetic field strength and radial distance between magnetic field sensor and magnetic field coil used to determine the position of the magnetic field sensor.

A system according to claim 23 or 24, wherein the positional data about a person and / or an object is used to align a camera to a desired area.

26. The system according to claim 25, wherein an image processing based on the S position data about a person and / or an object only individual areas of a

Analyzed the image, but analyzed at a higher frame rate than the normal frame rate.

27. System for determining the speed and position of an athlete and / or a sports equipment, consisting of, one at the athlete and / or sports equipment provided

Acceleration sensor, which sends its data to an entrained or a central evaluation unit, where the data is integrated to gain speed and position information about the movement of the athlete and / or the sports equipment. 28. The system according to claim 24, wherein the object is a ball or a puk and additionally a shoe or a racket is equipped with at least one pressure sensor which sends the data of the pressure sensors to the entrained or the central evaluation unit which transmits the data of the pressure sensors and use the position data of the ball to provide the athlete feedback on how to change his technique to achieve a desired ball or puck trajectory.