Collision warning device, collision warning system, item of clothing or equipment, article and use

Abstract

The invention relates to a collision warning device (10) for persons, in particular athletes of a team sport, to a collision warning system (20), to an item of clothing or equipment, to an article, and to a use of a collision warning system (20). The collision warning device (10) has a warning unit (12) which is designed to output an optical and / or acoustic warning signal in the event of a risk of collision detected by a detection unit (15).

Description

[0001] Collision warning device, collision warning system, item of clothing or equipment, article and use

[0002] The invention relates to a collision warning device, a collision warning system, a piece of clothing or equipment, an article and a use.

[0003] In many team sports, athletes wear clothing or equipment, especially helmets. These serve to protect the head in the event of collisions between athletes and objects or other athletes. A helmet can be considered both a piece of clothing and a piece of equipment. Clothing or equipment can generally serve to protect body parts in the event of collisions between athletes and objects or other athletes.

[0004] Collision-induced impact events can result in significant injuries to athletes. Therefore, there is a need for reliable early detection of collisions so that athletes can avoid collisions through their playing style or movements.

[0005] The object of the present invention is therefore to provide athletes in sports where there is a risk of collision with options for collision avoidance.

[0006] This object is achieved by the subject matter of the independent patent claims. Further advantageous embodiments of the invention are specified in the subclaims and the following description, each of which aspect explained may be incorporated into the invention.

[0007] The present invention relates to a collision warning device for people, in particular for athletes in a team sport. The collision warning device comprises a warning device configured to emit a visual and / or acoustic warning signal in the event of a collision risk detected by a detection device. The invention is based on the finding that the athlete themselves and / or other athletes can be alerted to the potential collision using the warning signal, allowing the athletes to react accordingly to mitigate or even prevent the collision. This reduces the likelihood that the collision will have physical effects on one of the athletes.

[0008] The collision warning device can also be used outside of sports, i.e. on people.

[0009] In one embodiment, the collision warning device may further comprise an energy storage device, and / or a communication device, and / or a computing unit.

[0010] The energy storage device can be electrically connected to the warning device so that it can be supplied with electrical energy. The electrical connection can be wired or wireless. A wireless electrical connection can be inductive, for example. The energy storage device can be a battery or a rechargeable battery. The communication device can receive signals from a monitoring device, in particular a pitch monitoring device. The signals can be processed in the computing unit or forwarded directly from the communication device to the warning device. It can be a wireless communication device, in particular a Bluetooth or ultra-wideband communication device.

[0011] In one embodiment, the collision warning device can have an elastic band that can be releasably fastened to a piece of clothing or equipment, in particular a helmet, of a person, in particular an athlete, in such a way that it extends from a rear section of the clothing or equipment part, in particular a rear helmet section, covering a rear body region, in particular a back of the head region, to a front section of the clothing or equipment part, in particular a front helmet section, covering a front body region, in particular a front of the head region, wherein the band has the warning device on a rear section of the band arranged on the rear section of the clothing or equipment part, in particular a helmet section, and wherein the band has a further warning device on a front section of the band arranged on the front section of the clothing or equipment part, in particular a helmet section.

[0012] The warning device or the warning signal emitted by it can adjust the athlete's movement. This means that an athlete is informed early on of a potential collision risk, allowing them to adjust their movement to avoid a collision or mitigate the associated impact. This can prevent injuries or reduce their severity. Injuries can include impact injuries (e.g., bruises, contusions, swelling, broken bones, tissue injuries) resulting from an impact, but also abrasions, lacerations, cuts, concussions, etc.

[0013] The elastic band can be easily attached to a helmet. It adapts to the contours and size of the helmet.

[0014] The elastic band can have one or more fastening means in the rear band section for attachment to one or more structural elements of the helmet. The front band section can also have fastening means for attachment to one or more structural elements of the helmet. Furthermore, the front band section can be indirectly attached to the helmet by clamping the warning device to a visor device, in particular the visor grille.

[0015] The elastic band can be made of chloroprene rubber (also polychloroprene or chlorobutadiene rubber), for example. This material is known under the brand name neoprene. The collision warning device can be used in team sports where athletes wear helmets. It is particularly suitable for use in ice hockey, field hockey, polo, rugby, American football, and similar sports. All helmet-wearing athletes can be equipped with a collision warning device. However, only individual athletes can be equipped with a collision warning device. The athletes can be members of the same team or of different teams (opposing players).

[0016] By illuminating the warning device, particularly in the form of a back-of-the-head light, an athlete approaching an athlete wearing the collision warning device can be warned. In response to the illumination, the approaching athlete can initiate a braking maneuver or adjust their movement early, thus reducing a potential impact and thus the risk of injury.

[0017] By illuminating the warning device, particularly in the form of a front-of-the-head light, the athlete wearing the collision warning device can be warned of an impending collision. This could be a collision with another athlete or an object (e.g., a playing field boundary). This can also warn the athlete of an impending collision with an athlete approaching from behind. The illumination can encourage the athlete to change their movement, perform a braking maneuver, or tense certain muscle groups.

[0018] By illuminating the warning device(s), athletes can be alerted early on to a potential collision risk, allowing them to adjust their movements to avoid a collision or reduce the associated impact. The illumination also allows athletes to tense certain muscle groups or adopt a protective posture, thus mitigating the damage caused by a collision.

[0019] The collision warning device can also be designed to reduce the risk of collision between an athlete and a referee or a stationary object such as a goal, a barrier, or the like, and issue a corresponding warning via the warning device. Alternatively, the warning can also be issued via a central warning device (not located on the athlete). This can be acoustic and / or visual.

[0020] Whether a collision occurs between athletes or between athletes and objects can be determined by an external, i.e., higher-level field monitoring device. The field monitoring device can include a processing unit. The field monitoring device can collect and evaluate the athletes' game and movement data and, in the event of a potential collision, send a signal to the collision warning device, which then illuminates a warning signal.

[0021] According to one embodiment of the invention, the belt can have a functional section in the rear belt section. The functional section can contain the energy storage device (also called the energy supply device), and / or the communication device, and / or the computing unit.

[0022] According to one embodiment of the invention, a cable can extend along the band from the functional section to the warning device. The cable can enable signal transmission to the warning device. The cable can be provided alternatively or additionally to the power supply of the warning device.

[0023] It can also be provided that a communication device is assigned to each of the different warning devices, for example, the front-of-the-head lighting device and the back-of-the-head lighting device. The respective communication devices can be Bluetooth modules. The communication devices of the different warning devices can communicate with each other (wirelessly). It can also be provided that each of the communication devices can receive data and signals from an external communication device (the pitch monitoring device) and / or send data and signals to it. A separate power supply unit can also be assigned to each of the different warning devices.

[0024] According to one embodiment of the invention, a signal from an external communication device (the playing field observation device) can be received by means of the communication device, wherein the signal is a trigger signal for illuminating the warning device.

[0025] According to one embodiment of the invention, the warning device, particularly in the form of a back-of-the-head light device, can be configured to warn an approaching person, particularly an athlete, of a collision. People, particularly athletes, often misjudge collision risks. In athletes, this can be due, for example, to a lack of match practice, a lack of experience, or specific collision situations. However, if an athlete approaching another athlete is warned of a potential collision, they can adjust their movements, speed, or the like to mitigate the impact that would occur in the event of a collision. They can also initiate an evasive maneuver if necessary.

[0026] The warning device, particularly in the form of a rear-head light, can illuminate statically or with specific flashing sequences. The rear-head light can be configured to illuminate in different colors, with different colors representing different collision risks, for example. The same applies to the warning device in the form of a front-head light.

[0027] According to one embodiment of the invention, the warning device, in particular in the form of a front-of-the-head lighting device, can be arranged such that the person wearing the clothing or equipment item, in particular the helmet, in particular the athlete, can visually perceive the lighting of the warning device. Preferably, the warning device is arranged such that the lighting of the warning device is perceptible in the field of vision of the person, in particular the athlete. For this purpose, the warning device can be arranged directly in the field of vision of the person, in particular the athlete, e.g., on a visor device or a visor grille, but also in close proximity to it.

[0028] According to one embodiment of the invention, the warning device, particularly in the form of a front-head light device, can be configured to warn the person, particularly the athlete, of a collision. This can be done by static illumination, by flashing a sequence of flashes, and / or by a specific color.

[0029] According to one embodiment of the invention, the warning device can comprise one or more light sources, for example one or more LEDs, and / or one or more acoustic output devices.

[0030] According to one embodiment of the invention, the warning device can be attached to a visor or visor grille of the helmet. In particular, the warning device can be clamped between two grilles or plastic bars of a plastic visor or visor grille. The warning device can also be attached to a visor surface, e.g., a plastic visor.

[0031] According to one embodiment of the invention, the warning device can have a reflector and / or a light guide. This allows the light to be amplified, distributed, or specifically modified.

[0032] The present invention also relates to a collision warning system for persons, in particular athletes, comprising a detection device for detecting a collision risk between a first person, in particular a first athlete, and a second person, in particular a second athlete, as well as a collision warning device arranged on a piece of clothing or equipment, in particular a helmet, of the first and / or the second person, in particular the athlete, as described herein.

[0033] The athletes can be members of the same team or of different teams (opponents). According to some embodiments, the collision warning system comprises a sensor. The detection device is coupled to the sensor via data communication technology. This allows the distance between the sensor and an external object, for example, another person, in particular an athlete, or a stationary object to be detected. The detected distance data can be used to reliably determine whether there is an increased probability of a collision.

[0034] The sensor optionally includes a time-of-flight sensor and / or a radio module of a two-way sensor. Both sensor types can be used with minimal effort to reliably and accurately measure distances, even for moving objects and people, especially athletes.

[0035] In some embodiments, the two-way sensor may be based on the fact that other objects and / or persons, in particular athletes, also have a radio module that interacts with the radio module of the sensor.

[0036] The time-of-flight sensor is preferably based on light in a wavelength range that is invisible to humans without aids, particularly in an infrared wavelength range. For example, the infrared wavelength range can include the wavelength of 940 nm. This prevents the person, especially the athlete, from being influenced or even disturbed by the waves used for distance detection.

[0037] Preferably, the radio module can be based on electromagnetic waves in an ultra-wideband wavelength range. The person, especially the athlete, is also unaffected by this type of electromagnetic waves, allowing them to carry out their activity undisturbed.

[0038] In one aspect, the radio module can have multiple antennas, for example, in the form of a SIMO (single input and multiple outputs) or a MISO (multiple inputs and single output). The multiple antennas can be used to determine additional signal properties, such as the angle of the detected electromagnetic waves. Thus, in addition to distance information, directional information can also be determined.

[0039] Optionally, the detection device can include an evaluation device, for example, as part of the processing unit. Furthermore, the collision warning system can include an energy storage device. The evaluation device and the energy storage device can be coupled at least indirectly to each other and to the sensor. This makes it possible to evaluate the acquired sensor data in the field, eliminating the need for additional external components. Furthermore, the sensor's power supply is ensured.

[0040] Preferably, the sensor is arranged on the first person, in particular the first athlete. Thus, all essential components for detecting potential collisions, evaluating the data, and issuing a corresponding warning signal are arranged on the person, in particular the athlete, themselves.

[0041] According to a first embodiment of the invention, data of the first person, in particular the first athlete, and the second person, in particular the second athlete, can be collected in the recognition device, on the basis of which a collision risk can be checked and determined.

[0042] According to a further embodiment of the invention, the data can be position, movement, speed and / or acceleration data of the first and second person, in particular of the athlete.

[0043] According to a further embodiment of the invention, hierarchical risk levels for the collision risk can be determined using the detection device, wherein, depending on a determined risk level, an optical and / or acoustic warning signal associated with the risk level can be output by the warning device. Different risk levels can be output, for example, using different colors, flashing patterns, brightness levels, or tones. According to one aspect, the sensor can also detect position, movement, speed, and / or acceleration data of the first and second athlete and transmit them to the detection device. The sensors can, for example, be proximity sensors that can detect the presence of an object (or person, in particular an athlete) at a distance of, for example, up to several meters, e.g., 4 meters.Several such proximity sensors can be arranged on a helmet in different spatial orientations.

[0044] The detection device can be located centrally, i.e., not on the person, in particular the athlete, or directly on a specific person, in particular the athlete. The data communication connection can be wireless.

[0045] According to a further embodiment of the invention, the recognition device can comprise one or more external recognition units, i.e. recognition units not located on the first and / or second person, in particular athletes, wherein the one or more external recognition units are in particular optical recognition units such as cameras.

[0046] According to a further embodiment of the invention, the warning device can be arranged on a bracket that can be releasably attached to the helmet.

[0047] The object is also achieved according to the invention by a piece of clothing or equipment, in particular a helmet, for use in a collision warning system as described herein. The piece of clothing or equipment, in particular the helmet, comprises one or more warning devices arranged on the piece of clothing or equipment or on a bracket that can be releasably attached to the helmet. An "arrangement" on a piece of clothing or equipment, in particular a helmet, can also be understood as an integration into the piece of clothing or equipment. Clothing items of a person, in particular an athlete, can be any clothing components that a person, in particular an athlete, wears while practicing sports, for example, sports pants, a sports jersey, a T-shirt, a sports shirt, socks, underwear, shoes, skates, a tracksuit, etc.Examples of equipment include impact protectors, protective items, a sports equipment such as a racket (e.g., tennis racket, ice hockey stick, badminton racket, table tennis racket, etc.), etc. A helmet can be considered both a piece of clothing and a piece of equipment.

[0048] The object is also achieved according to the invention by an article for detachable attachment to a piece of clothing or equipment, in particular to a helmet. The article comprises one or more warning devices.

[0049] If the item is an item for attachment to a helmet, the item can be a bracket or a strap.

[0050] To achieve the above-mentioned object, a bracket for detachable fastening to a helmet according to the invention is further proposed, wherein the bracket comprises one or more warning devices.

[0051] To achieve the above-mentioned object, the use of a collision warning system according to the invention in a team sport is further proposed, in particular team sports that use helmet protection, such as hockey, ice hockey, American football, rugby and polo.

[0052] The figures show further embodiments of the invention.

[0053] This shows:

[0054] Fig. 1 shows an object according to the invention in the form of a bracket;

[0055] Fig. 2 shows a collision warning device according to the invention in the form of a helmet with a bracket according to Fig. 1. - Fig. 3 shows a schematic view of a collision warning device arranged on a helmet as part of a collision warning system according to the invention, the helmet being shown in a front view;

[0056] - Fig. 4 shows a collision warning device according to the invention arranged on the helmet according to Fig. 3, the helmet being shown in a rear view.

[0057] Fig. 1 shows a perspective view of a bracket 14 for detachable attachment to a helmet 22, wherein the bracket 14 comprises a plurality of warning devices 12 in the form of illuminated displays 13. If necessary, further warning devices 12 can also be arranged alternatively or additionally on the bracket 14 in the form of one or more acoustic output devices. The bracket 14 can also comprise one or more sensors, e.g., a proximity sensor, GPS sensor, or position sensor. A communication unit, e.g., a radio module, can also be arranged on the bracket 14, by means of which data can be sent to a detection device 15.

[0058] A detection device 15, which includes a data processing unit, can also be arranged on the bracket 14, see Fig. 2. Fig. 2 shows a helmet 22 for use in a collision warning system 20 according to the invention. The bracket 14 according to Fig. 1 is releasably attached to the helmet.

[0059] According to this embodiment, the bracket 14 comprises a sensor 16 in the form of a time-of-flight sensor. According to this embodiment, the sensor 16 emits optical waves in the infrared range, which are imperceptible to humans without aids. The waves reflected by an external object are detected. An evaluation device 17, part of the computing unit 18, determines the distance to the external object from the time-of-flight difference.

[0060] Alternatively, the sensor 16 can also be designed as a radio module of a two-way sensor. An energy storage device 19 ensures the power supply of the sensor 16 and the evaluation device 17.

[0061] Figures 3 and 4 generally show a collision warning device 10 according to the invention as part of a collision warning system 20 according to the invention for athletes in a team sport.

[0062] According to this embodiment, the collision warning device 10 has an elastic band 21 which is fastened to a helmet 22 of an athlete in such a way that it extends from a rear helmet section 23 covering a back of the head region to a front helmet section 24 covering the front of the head region, wherein the band 21 has a warning device 12 in the form of a back of the head lighting device on a rear band section 25 arranged on the rear helmet section 23, and wherein the band 21 has a warning device 12 in the form of a front of the head lighting device on a front band section 26 arranged on the front helmet section 24.

[0063] The strap 21 has two tabs 29 on the rear strap section 25, wherein the tabs 29 each have a fastening means, in particular an opening 30, for attachment to a structural element, in particular a projection 31, of the helmet 22. The openings 30 can be slipped over the projections 31 (see Fig. 4). In the area of ​​the front strap section 24, a device 35 for clamping between two bars 33 of a visor grille 34 is arranged. The front head lighting device is arranged on the device 35. The front head lighting device is connected to a functional section 37 by means of a cable 36 (see Fig. 4). The functional section 37 can be integrated into the strap 21 or arranged on it. The functional section 37 can be a separate material layer arranged between the helmet 22 and the strap 21. The warning devices 12, here the back of the head lighting device, can comprise a light source 32 such as an LED.The light source 32 can protrude through an opening in the band 21 and into a light-guiding device, where it is distributed as light. The light-guiding device 38 can be designed as a light strip arranged on the surface of the band 21. According to this embodiment, the functional section 37 also has an energy storage device 19 (also called a power supply device). The energy storage device 19 is electrically connected to the cable 36 and thus to the warning device 12, here in the form of the front-of-the-head lighting device or the associated light source 40. The energy storage device 19 is also electrically connected to the warning device 12, here in the form of the back-of-the-head lighting device or the light sources 32. Furthermore, the functional section 37 has a communication device 41. The communication device 41 can be a module for wirelessly transmitting and receiving data and signals, e.g., a Bluetooth module.The communication device 41 can be connected to a control unit or the computing unit 18 of the functional section 37. Thus, received signals can be forwarded to the respective components connected to the control unit or computing unit 18, e.g., the warning device 12, in particular the back-of-the-head lighting device or the front-of-the-head lighting device.

[0064] Configurations A

[0065] Design A1. Collision warning system for athletes, comprising a detection device for detecting a collision risk between a first athlete and a second athlete or between an athlete and an object, and a warning device arranged on a helmet of the first and / or the second athlete, wherein the warning device is configured to emit an optical and / or acoustic warning signal in the event of a collision risk detected by the detection device.

[0066] Design A2. Collision warning system according to design A1, wherein the detection device collects data from the first athlete and the second athlete, on the basis of which a collision risk can be checked and determined.

[0067] Embodiment A3. Collision warning system according to embodiment A2, wherein the data are position, movement, speed, and / or acceleration data of the first and second athletes.

[0068] Embodiment A4. Collision warning system according to one of the preceding embodiments A, wherein the hierarchical risk levels for the collision risk can be determined by the detection device, and wherein, depending on a determined risk level, an optical and / or acoustic warning signal associated with the risk level can be output by the warning device.

[0069] Embodiment A5. Collision warning system according to one of the preceding embodiments A, wherein the detection device is connected by data communication to sensors located on the first and / or second athlete.

[0070] Embodiment A6. Collision warning system according to one of the preceding embodiments A, wherein the detection device comprises one or more external detection units, ie not located on the first and / or second athlete, wherein the one or more external detection units are in particular optical detection units such as cameras.

[0071] Embodiment A7. Collision warning system according to one of the preceding embodiments A, wherein the warning device comprises one or more light indicators and / or one or more acoustic output devices arranged on the helmet and / or on a bracket detachably attachable to the helmet.

[0072] Embodiment A8. A helmet for use in a collision warning system according to any one of embodiments A1 to A7, wherein the helmet comprises one or more light indicators and / or one or more acoustic output devices arranged on the helmet or on a bracket detachably attachable to the helmet.

[0073] Design A9. A bracket for releasably attaching to a helmet according to design A8, wherein the bracket comprises one or more light indicators and / or one or more acoustic output devices.

[0074] Embodiment A10. Use of a collision warning system according to one of the embodiments A1 to A7 in a team sport, in particular team sports that use helmet protection such as hockey, ice hockey, American football, rugby, and polo.

[0075] Configurations B

[0076] Design Bl. Collision warning device for athletes of a team sport, comprising an elastic band which can be detachably fastened to a helmet of an athlete in such a way that it extends from a rear helmet section covering a back of the head area to a front helmet section covering the front of the head area, wherein the band has a back of the head

[0077] lighting device, and wherein the band has a front headrest on a front band section arranged on the front helmet section.

[0078] lighting device.

[0079] Design B2. Collision warning device according to design B1, wherein the back-of-the-head lighting device is configured to warn an approaching athlete of a collision.

[0080] Design B3. Collision warning device according to design B1 or B2, wherein the front head lighting device is arranged such that the athlete wearing the helmet can visually perceive the illumination of the front head lighting device.

[0081] Embodiment B4. Collision warning device according to one of the preceding embodiments B, wherein the front head lighting device is configured to warn the athlete of a collision.

[0082] Embodiment B5. Collision warning device according to one of the preceding embodiments B, wherein the back of the head lighting device and / or the front of the head lighting device each comprises one or more light sources, for example one or more LEDs.

[0083] Embodiment B6. Collision warning device according to one of the preceding embodiments B, wherein the front head lighting device is attachable to a visor or visor grille of the helmet. Embodiment B7. Collision warning device according to one of the preceding embodiments B, wherein the strap has a functional section in the rear strap section, wherein the functional section has: a power supply device, and / or a communication device, and / or a computing unit.

[0084] Embodiment B8. Collision warning device according to embodiment B7, wherein a cable extends from the functional section to the front head lighting device along the band.

[0085] Embodiment B9. Collision warning device according to embodiment B7 or B8, wherein a signal from an external communication device can be received by means of the communication device, wherein the signal is a trigger signal for illuminating the back of the head lighting device and / or the front of the head lighting device.

[0086] Embodiment BIO. Collision warning device according to one of the preceding embodiments B, wherein the back-of-the-head lighting device and / or the front-of-the-head lighting device has a reflector and / or a light-guiding device.

[0087] Configurations C

[0088] Design CI. Collision warning system for athletes, comprising a detection device for detecting a collision risk between a first athlete and a second athlete or between an athlete and an object, and a warning device arranged on the first and / or second athlete, wherein the warning device is configured to emit a visual and / or acoustic warning signal in the event of a collision risk detected by the detection device.

[0089] Design C2. Collision warning system according to design CI, wherein the detection device collects data from the first athlete and the second athlete, on the basis of which a collision risk can be checked and determined.

[0090] Embodiment C3. Collision warning system according to embodiment C2, wherein the data are position, movement, speed, and / or acceleration data of the first and second athletes.

[0091] Embodiment C4. Collision warning system according to one of the preceding embodiments C, wherein the hierarchical risk levels for the collision risk can be determined by the detection device, and wherein, depending on a determined risk level, an optical and / or acoustic warning signal associated with the risk level can be output by the warning device.

[0092] Embodiment C5. Collision warning system according to one of the preceding embodiments C, wherein the detection device is connected by data communication to sensors located on the first and / or second athlete.

[0093] Embodiment C6. Collision warning system according to one of the preceding embodiments C, wherein the detection device comprises one or more external detection units, ie not located on the first and / or second athlete, wherein the one or more external detection units are in particular optical detection units such as cameras.

[0094] Embodiment C7. Collision warning system according to one of the preceding embodiments C, wherein the warning device is arranged on a piece of clothing or equipment, in particular a helmet, of the first and / or second athlete.

[0095] Embodiment C8. Collision warning system according to one of the preceding embodiments C, wherein the warning device comprises one or more light indicators and / or one or more acoustic output devices arranged on the clothing or equipment part, in particular the helmet and / or on a bracket that can be releasably attached to the helmet.

[0096] Embodiment C9. Clothing or equipment item, in particular a helmet, for use in a collision warning system according to one of the embodiments C1 to C8, wherein the clothing or equipment item, in particular the helmet, comprises one or more light displays and / or one or more acoustic output devices arranged on the clothing or equipment item, in particular the helmet, or on a bracket detachably attachable to the helmet.

[0097] Embodiment CIO. An article for detachable attachment to a piece of clothing or equipment, in particular to a helmet, according to embodiment C9, wherein the article comprises one or more light displays and / or one or more acoustic output devices.

[0098] Embodiment Cll. Use of a collision warning system according to one of the embodiments C1 to C8 in a team sport, in particular team sports that use helmet protection such as hockey, ice hockey, American football, rugby and polo.

Claims

Patent claims 1. Collision warning device (10) for persons, in particular for athletes in a team sport, comprising a warning device (12) which is designed to emit an optical and / or acoustic warning signal in the event of a collision detected by a detection device (15). collision risk.

2. Collision warning device (10) according to claim 1, wherein the Collision warning device (10) further comprises an energy store (19), and / or a communication device (41), and / or a computing unit (18).

3. Collision warning device (10) according to claim 1 or 2, wherein the collision warning device (10) comprises an elastic band (21) which can be releasably fastened to a piece of clothing or equipment, in particular a helmet (22), of a person, in particular an athlete, in such a way that it extends from a rear section of the clothing or equipment part, in particular a rear helmet section (23), covering a rear body region, in particular a back of the head region, to a front section of the clothing or equipment part, in particular a front helmet section (24), covering a front body region, in particular a front of the head region, wherein the band (21) has the warning device (12) on a rear band section (25) arranged on the rear section of the clothing or equipment part, in particular a helmet section (23), and wherein the band (21) is arranged on a front section of the clothing or equipment part, in particular a helmet section (24),arranged front band section (26) has a further warning device (12).

4. Collision warning device (10) according to claim 2, wherein the band (21) has a functional section (37) in the rear band section (25), wherein the functional section (37) comprises the energy storage device (19), and / or the communication device (41), and / or the computing unit (18).

5. Collision warning device (10) according to one of the preceding claims, wherein a cable (36) extends from the functional section (37) to the warning device (12) along the band (21).

6. Collision warning device (10) according to one of the preceding claims, wherein a signal from an external communication device can be received by means of the communication device (41), wherein the signal is a trigger signal for illuminating the warning device (12).

7. Collision warning device (10) according to one of the preceding claims, wherein the warning device (12) is designed to warn an approaching person, in particular an athlete, of a collision.

8. Collision warning device (10) according to one of the preceding claims, wherein the warning device (12) is arranged such that the person wearing the clothing or equipment item, in particular the helmet (22), in particular the athlete, can visually perceive a lighting of the warning device (12).

9. Collision warning device (10) according to one of the preceding claims, wherein the warning device (12) is arranged to warn the person, in particular the athlete, of a collision.

10. Collision warning device (10) according to one of the preceding claims, wherein the warning device (12) comprises one or more light sources (32, 40), for example one or more LEDs, and / or one or more acoustic output devices.

11. Collision warning device (10) according to one of the preceding claims, wherein the clothing or equipment item is a helmet (22), wherein the Warning device (12) can be attached to a visor or visor grille (34) of the helmet (22).

12. Collision warning device (10) according to one of the preceding claims, wherein the warning device (12) has a reflector and / or a light-guiding device (38).

13. Collision warning system (20) for persons, in particular athletes, comprising a detection device (15) for detecting a collision risk between a first person, in particular an athlete, and a second person, in particular a second athlete, or between a person, in particular an athlete, and an object, as well as a collision warning device (10) arranged on the first and / or the second person, in particular athlete, according to one of the preceding claims.

14. Collision warning system (20) according to claim 13, wherein the collision warning system (20) has a sensor (16), and wherein the detection device (15) is coupled to the sensor (16) by data communication technology.

15. Collision warning system (20) according to claim 14, wherein the sensor (16) comprises a time-of-flight sensor and / or a radio module of a two-way sensor.

16. Collision warning system (20) according to claim 15, wherein the time-of-flight sensor is based on light in a wavelength range invisible to humans without aids, in particular in an infrared wavelength range, and wherein the radio module is based on electromagnetic waves of an ultra-wideband wavelength range.

17. Collision warning system (20) according to one of claims 14 to 16, wherein the detection device (15) comprises an evaluation device (17), wherein the collision warning system (20) comprises an energy store (19), and wherein the evaluation device (17) and the energy store (19) are at least indirectly coupled to one another and to the sensor (16).

18. Collision warning system (20) according to one of claims 14 to 17, wherein the sensor (16) is arranged on the first person, in particular the first athlete.

19. Collision warning system (20) according to one of claims 13 to 18, wherein the detection device (15) can be releasably fastened by means of a, in particular elastic, element to a piece of clothing or equipment, in particular a helmet (22), of a person, in particular an athlete.

20. Collision warning system (20) according to one of claims 13 to 19, wherein data of the first person, in particular the first athlete, and the second person, in particular the second athlete, are collected in the recognition device (15), on the basis of which data a collision risk can be checked and determined.

21. Collision warning system (20) according to claim 20, wherein the data are position, movement, speed and / or acceleration data of the first and second person, in particular the athlete.

22. Collision warning system (20) according to one of claims 13 to 21, wherein the risk levels for the collision risk which are hierarchically arranged with the detection device (15) can be determined, and wherein, depending on a determined risk level, an optical and / or acoustic warning signal associated with the risk level can be output by the warning device (12).

23. Collision warning system (20) according to one of claims 13 to 22, wherein the warning device (12) is attached to a piece of clothing or equipment, in particular a helmet (22), of the first person, in particular of the first athlete.

24. Collision warning system (20) according to one of claims 13 to 23, wherein the warning device (12) is mounted on a releasably attachable bracket (14) of a helmet (22).

25. Clothing or equipment item, in particular a helmet (22), for use in a collision warning system (20) according to one of claims 13 to 24, wherein the clothing or equipment item, in particular the helmet (22), comprises one or more warning devices (12) in the form of illuminated displays (13), and / or one or more acoustic output devices which are arranged on the clothing or equipment item, in particular the helmet (22) or on a bracket (14) which can be detachably fastened to the helmet (22).

26. An article for detachable fastening to a piece of clothing or equipment, in particular to a helmet (22), according to claim 25, wherein the article comprises one or more warning devices (12) in the form of illuminated displays (3), and / or one or more acoustic output devices.

27. Use of a collision warning system (20) according to one of claims 13 to 24 in team sports, in particular team sports using helmet protection such as hockey, ice hockey, American football, rugby and polo.

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