EP2864007A1

EP2864007A1 - Interactive rocking device for video games

Info

Publication number: EP2864007A1
Application number: EP13732431.5A
Authority: EP
Inventors: Frédéric CLAUDEL; Frédéric Nicolas; Alain Falc
Original assignee: Bigben Interactive SA
Current assignee: Bigben Interactive SA
Priority date: 2012-06-25
Filing date: 2013-06-20
Publication date: 2015-04-29
Also published as: FR2992439B1; FR2992439A1; WO2014001203A1

Abstract

The present invention relates to a device for interactively playing video games, comprising a rocking body (1) consisting of a base (2) extended by a trunk (3), characterised in that it comprises a system of sensors (14) sensing the movements and the position in space of said rocking body (1) and a communication system (15) communicating between the system of sensors and a digital processing unit (5).

Description

INTERACTIVE TILTING DEVICE FOR VIDEO GAMES

The present invention relates to the field of devices comprising elements capturing certain actions of a user and transforming this information in particular so as to interact with an imaging and sound system such as a screen connected to a digital processing unit such as video game consoles or personal computers.

The main purpose of the invention is to provide a new device for performing playfully and sporting interactive practices, including boxing or wrestling, through real physical actions, including boxing or wrestling, the user on said device. The invention is moreover primarily intended for use by children, including very young children. The interactions with the invention are designed to have minimal risk of injury and require little dexterity. Similarly, these interactions will preferably be achievable over the entire height of the device according to the invention to take into account the different sizes of children. The prior art already knows accessories seeking to increase playful and sporting interactions for the practice of martial arts.

Thus patent GB2461523 "Inflatable punching bag" (NG WAI-JIM - 2010) describes an accessory consisting of an inflatable punching bag mounted on the foot, on the surface of which are impact sensors, and an electrical circuit feeding lights and a speaker. Such impact sensors quantify how the outer wall of the bag is projected into the bag in the event of an impact. Such an accessory makes it possible to measure the intensity of the impacts of the blows that are carried to the bag. This accessory does not, however, to capture an impact elsewhere than the areas attached to said impact sensors, which notably implies a certain difficulty of use (accuracy of the keystroke) and a size limit of the user (the zone d impact must be at the user). It also does not allow to know the inclination of the accessory, which can especially be useful when you want to make the interactive fight as envisaged. Finally, from a production point of view, the accessory is composed of a bag attached to a foot, which creates an area of structural weakness at the border zone between said foot (immobile) and the bag ( subjected to bending during the strikes which are brought to him).

Another type of accessories, described in US2010240502 "BOXING SANDBAG" (ARMORLINK SH CORP - 2010), is in the form of a bag hung along a pillar, comprising, between the outer surface of said bag and the pillar, at least one sensor measuring the force of the impact of the blows on the bag, according to the principle indicated above. Because of the resistance of the pillar to an impact, such an accessory requires knowing how to deliver a strike with a good technique so as not to hurt (at the level of a joint or the hand of the arm that gives the blow). The accessory can not be tilted during practice, the pillar being fixed, nor to capture such inclination if it were possible. Finally, the need to hang the accessory along a pillar removes any mobility to the accessory which makes it inconvenient especially in the case where one would like to practice with a screen, for example television, himself even generally not very mobile.

The US201 1 104652 "Apparatus and method for impact activity learning system" (SIMON STEVE M - 201 1) describes an accessory that can be integrated into a striking bag (hanging or wall) comprising a pressure-sensitive sensor and a projector and a speaker displaying images in response to the user's keystrokes on the bag. This accessory also makes it impossible to define an impact other than on the striking zones associated with the pressure-sensitive sensor, does not make it possible to capture the inclination of the bag and requires a certain technique of striking in order not to be injured at the same time. during the use of the fact that he uses a genuine punching bag. On the other hand, many types of toys and tilting accessories exist. Among the most popular are toys called "Culbuto" (or "Poussah" or "Tumbler Toy", "Roly Poly", etc.) which include toys called "Bop Bag" which are rocking toys, generally inflatable, in which one can hit but which are not equipped with a device allowing interactivity with a digital processing unit, nor a device for measuring or quantifying the impacts of blows to them. Another example of a Culbuto-type toy provided this time with an electronic system is given by the patent KR1 00271383 "A TOY A TUMBLING DOLL" (CHOI HAI JOO - 1998) which proposes a "Culbuto" type accessory capable of emit sounds or music when the accessory is oriented in a specific North / South direction evaluated using a magnet placed in the accessory. Such an accessory is however not intended to communicate with a digital processing unit, nor to quantify heeling movements generated by impacts or catches. In addition, such an accessory is not intended for boxing or wrestling games. An object of the present invention is to overcome the disadvantages of the documents of the prior art mentioned above and first of all, to provide a device for the interactive practice of robust combat video games that remains convenient to use. A first aspect of the invention relates to a device for the interactive practice of video games comprising:

a rocking body,

a sensor system arranged to detect movements of the rocking body,

a communication system arranged to establish communication between the sensor system and a digital processing unit, characterized in that the rocking body comprises an extended base of a trunk,

in that the base comprises a convex lower surface arranged opposite the trunk to be in contact with the ground in a vertical position of the tilting body,

and in that the tilting body, of a predetermined weight, has a center of gravity arranged in the base, so that, the tilting body being placed on its base, the weight of the tilting body exerts a restoring force of said body tilting in the vertical position when said rocking body is inclined with respect to the ground. The device according to the present invention makes it possible to play a video game of combat, because the communication system makes it possible to send the information on the movements of the rocking body to a processing unit which can be a video game console (portable or mobile). living room). The tilting body is easy to use, because on the one hand it automatically returns to the vertical position thanks to the arrangement of the center of gravity in the base, and on the other hand, the trunk offers a large striking surface, which leaves a great freedom to the user.

Advantageously, the trunk is arranged to be inflated with air and that the base is arranged to be inflated with a heavier fluid than air.

According to a preferred embodiment, the trunk is airtight and air-swellable and the base is impervious and inflatable with a fluid heavier than air. The tilting body is an inflatable element having a watertight compartment in its lower part that can be filled with water. The upper body of the device is airtight and filled with air and is lighter than the lower part filled with water. The upper part then forms the trunk of the device according to the invention. The lower part forms the base of said device. According to one embodiment, the rocking body is an inflatable element having in its lower part a compartment that can be filled with materials having a high density, such as for example sand, compared to the upper part which is intended to be filled with air. In this embodiment, the filling of the lower part is performed by the user or at the time of manufacture of the device according to the invention. Advantageously, the rocking body comprises an intermediate piece between the trunk and the base so that the pressure in the base is independent of the pressure in the trunk when the trunk and the base are inflated. This implementation makes it possible to control the movement of the rocking body, since the pressure of the trunk has no influence on that of the base, so that the latter can be sufficiently weak so that the base deforms when the body is tilted. rocking, to absorb the energy of the strike and to limit the speed of heeling and return to position. In other words, with the intermediate piece, the pressurized trunk, does not limit the ability of the base to deform. Advantageously, the intermediate piece is a pierced tubular wall connecting the trunk and the base. This implementation is economic, and the holes allow air to circulate in the intermediate piece, to prevent it postpone some of the pressure of the trunk on the base. Advantageously, the sensor system is embedded on the tilting body. The sensor system, linked to the tilting body, undergoes the same movements as the latter.

According to one embodiment, the sensor system is placed in a housing located on the surface of the tilting body. Said casing is positioned on the rear face of the tilting body so as to be protected from being struck by the tilting body.

Advantageously, vibrations are present in the tilting body during its use and the device comprises isolation means arranged to isolate the vibrations of the sensor system. With these means of isolation, the sensor system measures only the movements of the tilting body and not the vibrations that are present as a result of a typing by the user. The signal sent to the digital processing unit is not parasitized by these vibrations, so that the treatment provides a realistic rendering of the rocking body movements by the digital processing unit.

Advantageously, the isolation means comprise at least one strap gripping the trunk when inflated, and arranged between a striking zone on the trunk and the sensor system. This strap, or rope that encloses the trunk between the striking zone and the sensor system has the effect of returning (or thinking) and blocking the vibrations in the striking zone, that is to say in a part of the body tilting that does not carry sensors. Ideally, the sensor system is arranged under the trunk and the rocking body has two strips enclosing the trunk when inflated, one arranged at the bottom of the trunk (between the sensor system and the trunk striking zone), and the other arranged at the top of the trunk (above the striking zone).

Advantageously, the isolation means are a foam arranged between the rocking body and the sensor system. This implementation is economical so that the sensor system is isolated from vibration.

Advantageously, an imaging and sound system is embedded in the rocking body. Another aspect of the invention relates to a tilting body comprising an extended base of a trunk, the trunk being arranged to be inflated with air, the base being arranged to be inflated with a fluid heavier than air and comprising a convex bottom surface arranged opposite the trunk to be in contact with the ground in a vertical position of the tilting body, the tilting body, of a predetermined weight, having a center of gravity arranged in the base, so as to that, the tilting body being placed on its base, the weight of the tilting body exerts a restoring force of said body tilting in the vertical position when said tilting body is inclined with respect to the ground, characterized in that the tilting body comprises an intermediate piece between the trunk and the base so that the pressure in the base is independent of the pressure in the trunk when the trunk and the base are inflated.

Advantageously, vibrations are present in the tilting body during use and the tilting body comprises a sensor system and isolation means arranged to isolate the vibrations of the sensor system.

Advantageously, the isolation means comprise at least one strap gripping the trunk when inflated, and arranged between a striking zone on the trunk and the sensor system.

Advantageously, the isolation means are a foam arranged between the rocking body and the sensor system.

The present invention also relates to a device comprising a tilting body, a sensor system capturing movements and a position in the space of the tilting body, a communication system between the sensor system and a digital processing unit, characterized in that the tilting body comprises an extended base of a trunk, in that the base comprises a convex lower surface arranged opposite the trunk to be in contact with the ground in a vertical position of the tilting body, and in that the body tilting, of a predetermined weight, has a center of gravity arranged in the base, so that, the tilting body being placed on its base, the weight of the tilting body exerts a restoring force of said tilting body in the vertical position when said rocking body is inclined with respect to the ground.

Such devices can be advantageously used to achieve an interactive boxing or wrestling practice without risk of injury and without the need to hit only specific areas attached to impact sensors. Indeed, because of its structure, the rocking body of the device is behaves like the toys commonly called "culbuto". In fact, when the body of the device is hit by the user, it switches without offering great resistance in the direction of the strike and at a speed and a heel angle related to the intensity of said striking. Similarly, when a wrestling or judo is taken to the device according to the invention, the rocking body will switch according to said decision. The angle and speed of the tilting of the body of the device according to the invention are then captured and quantified by the sensor system and transmitted to a digital processing unit by the connection system. A program of the digital processing unit can then evaluate the impact of the percussion or the fight that caused these movements and position, and represent them for example in a game. After any impact or manipulation of the rocking body by the user, the tilting body mechanically returns to its original position by the only set of gravitational force. The device according to the invention comprises an extended base of a trunk, such that the base comprises a convex lower surface arranged opposite the trunk to be in contact with the ground in a vertical position of the rocking body, such as the body tilting, of a predetermined weight, has a center of gravity arranged in the base, so that, the tilting body being placed on its base, the weight of the tilting body exerts a restoring force of said tilting body in the vertical position when said rocking body is inclined with respect to the ground.

The convex bottom surface is a curved and outwardly projecting surface.

According to a preferred embodiment, the tilting body has a size of between 1 meter and 1 meter 80, and the trunk is generally cylindrical and has a diameter of between 20 and 40 centimeters. According to one embodiment, the trunk is a surface of revolution.

According to one embodiment, the trunk is an ovoid or a spheroid. Advantageously, the tilting body has a density of less than 220 grams per liter. This implementation makes it possible to limit the inertia of the rocking body.

According to one embodiment, the trunk is of foam of a predefined hardness covered with a protective surface. The tilting body is an element made of a relatively light and resistant material, of high resilience polyurethane foam type, covered with a resistant plastic coating, and having in its lower part a weight having a density much higher than that of said relatively light material, such as this lower part, composing the base, is heavier than the upper part, making up the trunk. According to one embodiment, the rocking body comprises complementary elements suggesting or representing parts of a humanoid or monstrous body: arm, head, etc.

The device according to the invention comprises a sensor system capturing movements and a position in the space of the tilting body of the device according to the invention.

According to a preferred embodiment, the sensor system is placed inside the rocking body, so that said sensors are protected from the impacts of blows received by the tilting body.

According to a preferred embodiment, this sensor system comprises three accelerometers integral with the rocking body of the device according to the invention and arranged along three orthogonal axes. Such sensors make it possible to capture and quantify the force and direction of a given shot at the device according to the invention, whatever the location of said shot, by quantifying the acceleration vector imparted by said blow to the entire body. rocking, using the Newtonian mechanical relation between the sum of the forces applied to an object, the mass and the acceleration of said object: mass x acceleration = sum of the forces applied. Knowing the mass of the rocking body, the knowledge of the vector acceleration as determined by the accelerometers allows to deduce the vector sum of the forces applied to the rocking body and consequently the force of the blow. Such sensors also make it possible to evaluate the accommodation of the rocking body, for example following a fight. In this embodiment, the sensors are in fact integral with the tilting body. The angular variations, with respect to the axes of the accelerometers, of the gravitational acceleration thus indicate the angular variations of the rocking body with respect to the vertical, characterized by said gravitational acceleration in the reference considered constant of the user.

According to an embodiment with accelerometers, the accelerometers are placed at the base of the rocking body, so that they are protected from the impacts received by the tilting body, said impacts being generally given at the level of the trunk of the rocking body . In this embodiment, the amplitudes of movements to which the accelerometers are subjected are less than if the accelerometers were located in the upper part of the tilting body. Accelerometers must therefore have good sensitivity.

According to an embodiment with accelerometers, the accelerometers are placed at the top of the rocking body in order to be subjected to the highest heeling amplitudes of the rocking body. In this embodiment, the accelerometers will be chosen so as to have a sensitivity spectrum ranging from gravitational variation (plus or minus 1 g) to the high tilts of shifts due to impacts that may represent tens of g. According to one embodiment, the sensor system comprises a gyroscope integral with the rocking body, measuring the inclination of the rocking body. According to one embodiment, the sensor system comprises a camera. This camera is placed on the rocking body so as to capture in its field of vision visual markers, for example infrared LEDs placed on the display screen of the digital processing unit. The movements and the position of said camera are integral with those of the rocking body. The movements and the position in the space of the rocking body are then established according to the variations of the images of the visual markers as captured by said camera. The processing of the images from the camera to deduce said movements and position of the rocking body is performed, according to the embodiments, inside or outside the device. This processing will be performed outside the device by the digital processing unit for example in the case where the bandwidth of the link system connecting the device according to the invention to the digital processing unit is sufficient to transit the images of the camera. This treatment will be carried out inside the device according to the invention, by a specific system provided for this purpose, and only the results of said processing will be transmitted to the digital processing unit, for example in the case of a unit of digital processing accessible remotely via the Internet or in the case of a low-bandwidth wireless link between the device according to the invention and the digital processing unit.

According to one embodiment, the sensor system comprises a set of sensors external to the tilting body, composed of one or more proximity sensors placed around the tilting body, so that when said body tilts, the proximity sensors are enabled. Such proximity sensors can be made for example with infrared LEDs and associated infrared receivers. The light beam of each LED is oriented to be reflected back to the associated receiver when the rocking body switches to said LED. According to an embodiment with sensors external to the rocking body, the external sensor system is composed of a camera connected to the digital processing unit and positioned so that the rocking body is in the field of view of said camera . The movements and the position in the space of the rocking body are then determined by a program of the digital processing unit to which the camera is connected and via the images from the camera. In this embodiment, the rocking body may be provided with visual markers or specific LEDs so that certain parts of said rocking body, and consequently their movements and position, are more easily identifiable.

The device according to the invention comprises a communication system between the sensor system and a digital processing unit.

This communication system will encode and transmit the signals from the sensor system to the digital processing unit.

According to a preferred embodiment, this communication is bidirectional. In this embodiment, the digital processing unit can send instructions to the device according to the invention. These instructions are received by the communication system which decodes them and executes them to control, for example, systems of lights or sounds which is provided with the device according to the invention in this embodiment.

According to a preferred embodiment, this communication is wireless.

According to one embodiment, the rocking body comprises, on its outer surface, one or more pressure-sensitive zones. Such areas may for example be made by separating two conductive surfaces by a non-conductive foam. When a pressure greater than the expansion force of the foam is applied on one of the conductive surfaces towards the other surface, the two conductive surfaces come into contact and a circuit electrical is thus closed, which generates a signal. When the pressure exerted is less than the expansion force of the foam, the two conductive surfaces are then separated and the electric circuit is open. In this embodiment, the signals coming from the pressure-sensitive zones are communicated to the communication system of the device of the invention which transmits them to the digital processing unit.

According to one embodiment, the rocking body is provided with a system of light sources and / or sounds.

According to one embodiment, the system of light sources and / or sounds are controlled by the digital processing unit via the communication system. According to one embodiment, the rocking body comprises a system of one or more lights. Such lights can be made for example by LEDs placed in the thickness of the surface of the rocking body so that the LEDs are protected from the impacts of the shots given to the tilting body, but that the light emitted by said LEDs can be visible to a user located near the rocking body. In this embodiment, the lights are controlled by the digital processing unit, via the bidirectional communication system of the device according to the invention, which can for example signal to a user areas to hit. This embodiment with light signals can be advantageously combined with the embodiment with pressure-sensitive zones, so for example that each pressure-sensitive zone is associated with a light which is lit when said zone is to be struck. , and off when said zone has just been struck. According to one embodiment, the rocking body comprises one or more loudspeakers as well as a system producing sound. This system and these speakers can for example be placed inside the body tilting and being activated when an impact is perceived on the rocking body. In this embodiment, the sound activation can also be controlled by the digital processing unit via the bidirectional communication system of the device.

According to one embodiment, a digital processing unit is embedded in the device and controls all or part of the system of light sources and / or sounds.

According to one embodiment, the digital processing unit is embedded inside the rocking body. In this embodiment, the digital processing unit controls various actuators (lights, sounds, etc.) as a function, in particular, of the signals of the movement and position sensor system, and, according to the embodiments, other sensors (eg pressure-sensitive areas) which is provided with the device according to the invention, or a clean program. For example, combat announcements may be issued by loudspeakers before any user fights with the device.

According to an embodiment where the digital processing unit is embedded, the device according to the invention comprises a screen connected to the digital processing unit, displaying images related to the game. These images may for example be the faces of the opponents. of the user. This screen will be protected from blows given by the user, for example by being placed behind a transparent flexible surface or a grid, which can represent a combat helmet.

According to one embodiment with an on-board digital processing unit, said on-board unit, with or without a screen, is complementary to an external digital processing unit connected to the device via the communication system and connected to a display screen. display. In this embodiment, the on-board unit controls all or part of the different actuators which is provided with the device according to the invention, and works together or not with the outdoor unit.

According to one embodiment, the tilting body contains a specific orifice for introducing an existing joystick (or any existing device provided with motion sensors) which thus becomes integral with the movements of said rocking body. According to another similar embodiment, the rocking body comprises on its surface, a housing in which can be placed said handle (or said device) so as to become integral with the movements of said rocking body. The advantage of this embodiment is that said controller, if it comprises motion sensors, (or said device) then provides signals indicating the movements of said rocking body. A second aspect of the invention relates to the use, for the practice of a combat video game, of a device comprising a tilting body, a sensor system capturing movements and a position in the space of the tilting body, a communication system between the sensor system and a digital processing unit, characterized in that the rocking body comprises an extended base of a trunk, in that the base comprises a convex lower surface arranged opposite the trunk for being in contact with the ground in a vertical position of the tilting body, and in that the tilting body, of a predetermined weight, has a center of gravity arranged in the base, so that, the tilting body being placed on its base, the weight of the rocking body exerts a restoring force of said rocking body in the vertical position when said rocking body is inclined relative to the ground due to a force exerted by a player on the rocking body.

Advantageously, during use, the force on the rocking body is exerted by an upper limb or a lower limb of the player. The realism and interactivity of the game is enhanced. The invention will be better understood from the following description, given purely for explanatory purposes, of one embodiment of the invention, with reference to the appended figures:

Figure 1 illustrates an overview of the device according to the invention in use;

FIG. 2 illustrates a front view of the device according to the invention; FIG. 3 illustrates a sectional view of the device according to the invention; FIG. 4 illustrates the connections between different components of the device according to the invention;

Figure 1 illustrates an overview and in use situation of the device according to the invention. According to the embodiment shown in FIG. 1, the device according to the invention consists of a tilting body 1 composed of a generally cylindrical upper part 3 subsequently called the trunk and a lower part 2 of greater density. important afterwards called base, such that the center of gravity of the body is located in the base 2 and such that the outer surface of the rocking body is substantially a surface of revolution (a base substantially of the shape of a flattened spheroid extended by a trunk of substantially cylindrical shape). On the trunk, there are arranged pressure sensitive areas 4 which are activated when the user 7 taps or presses on it. These zones 4 also include LEDs which are controlled by the device. The device according to the invention communicates the signals coming from its sensor system, as well as those coming from the pressure-sensitive areas 4 to a digital processing unit 5 which is connected to a screen 6 on which a video game translates this information into adequate game phases. For example, when the user 7 taps the device 1, the video game shows a character of the game receiving a shot. The position of the character that has just been struck in the game is adapted according to the information concerning the movements and the position of the rocking body as provided by the sensor system of the device according to the invention. Thus, if said sensor system indicates that the rocking body is going to the left, then the character shown on the screen 6 will fall to the left, which will increase the immersive dimension of the video game. operating in the digital processing unit 5. In the illustrated embodiment, the signals from the pressure sensitive areas 4 are also transmitted to the digital processing unit 5. These zones correspond in the game to striking places. on the virtual characters. When one of these zones is activated because one presses or taps on it, then in the game, images show a character struck on the corresponding zone. The LEDs are activated one by one or in sequence by the game to indicate areas to be typed in a time sequence or at a specific time. This may correspond in the game to the indication given to the player that his opponent opens his guard and that by tapping the area corresponding to the LED lit on the rocking body, he can touch his opponent effectively.

In the situation shown in FIG. 1, the user 7 has just struck his right fist on the cylindrical trunk 3 of the tilting body 1 which is in fact swinging in the direction of the blow which has been carried to it.

Figure 2 illustrates a front view of the device according to the invention. It shows the tilting body 1 consisting of the generally cylindrical trunk 3 and the base 2. The view makes it possible to appreciate the slightly rounded lower surface of the base 2 which allows the rocking of the body 1. This slightly rounded lower surface is shown by difference with the horizontality of the ground 1 1. In the illustrated embodiment, the trunk 3 consists of an inflatable surface using an air valve 8. The base 2 is composed of a sealed compartment that is filled with water via the aperture provided with a cap 9. The pressure sensitive areas 4 are interconnected via a cable 10 which conducts their signals and runs under the surface of the body 1 to reach the housing 13 (not visible in this Figure) located under the body 1 as will be shown in Figure 3.

Figure 3 illustrates a sectional view of the device according to the invention. It shows the membrane 12 which separates the sealed compartment 3 forming the upper part of the tilting body 1 and which is air-swellable, the sealed compartment 2 forming the lower part of the tilting body 1 and which is intended to be filled with water. At the bottom of the tilting body 1 and inside thereof, we see the housing 1 3 containing the sensor system of the device according to the invention as well as the communication system which, in this embodiment is a wireless communication. The cable issuing from the pressure-sensitive zones joins this housing so that the signals of said zones can reach the communication system of the device and then the digital processing unit.

FIG. 4 illustrates an organic view of various components of the device according to the invention as well as an external digital processing unit 5. It shows the housing 13 comprising the sensor system 14, which in this embodiment is a triplet of accelerometers along orthogonal axes, as well as the communication system 15. The signals from the sensor system 14 and the pressure-sensitive areas 4 are sent to the communication system 15 which codes them and transmits them via a wireless communication to the digital processing unit 5 which comprises, in the illustrated embodiment, a suitable receiver. Said digital processing unit 5 processes this information and can transmit to the device according to the invention via the same wireless communication which is here bidirectional, instructions concerning various actuators which is provided with the rocking body 1, also appearing on this organic view, to know here LEDs 16 and a sound system 17.

The invention is described in the foregoing by way of example. It is understood that the skilled person is able to realize different variants of the invention without departing from the scope of the patent.

Claims

1. Device for the interactive practice of video games comprising: a rocking body (1),

a sensor system (14) arranged to detect movements of the rocking body (1),

a communication system (15) arranged to establish communication between the sensor system and a digital processing unit (5),

characterized in that the tilting body (1) comprises a base (2) extended by a trunk (3),

in that the base (2) comprises a convex lower surface arranged opposite the trunk to be in contact with the ground in a vertical position of the tilting body,

and in that the tilting body (1), of a predetermined weight, has a center of gravity arranged in the base (2), so that the tilting body (1) is placed on its base (2) , the weight of the rocking body (1) exerts a restoring force of said rocking body (1) in the vertical position when said rocking body is inclined with respect to the ground.

2. Device according to claim 1, characterized in that the trunk

(3) is arranged to be inflated with air and that the base (2) is arranged to be inflated with a fluid heavier than air.

3. Device according to claim 2, characterized in that the tilting body (1) comprises an intermediate piece between the trunk (3) and the base (2) so that the pressure in the base (2) is independent of the pressure in the trunk (3) when the trunk (3) and the base (2) are inflated.

4. Device according to claim 3, characterized in that the intermediate piece is a pierced tubular wall connecting the trunk (3) and the base (2).

5. Device according to one of claims 1 to 4, characterized in that the sensor system (14) is embedded on the tilting body (1).

6. Device according to one of claims 1 to 5, characterized in that the sensor system (14) is placed in a housing located on the surface of the tilting body (1).

7. Device according to one of claims 5 or 6, wherein vibrations are present in the tilting body (1) during use and characterized in that the tilting body (1) comprises isolation means arranged to isolate the vibrations of the sensor system (14).

8. Device according to claim 7 in its dependence on claim 2, characterized in that the isolation means comprise at least one strap gripping the trunk (3) when inflated, and arranged between a striking zone on the trunk (3) and the sensor system (14).

9. Device according to claim 7, characterized in that the isolation means is a foam arranged between the rocking body (1) and the sensor system (14).

10. Use, for the practice of a combat video game, of a device comprising a tilting body (1), a sensor system (14) arranged to capture movements of the tilting body (1), a communication system Device (15) arranged to establish a communication between the sensor system and a digital processing unit (5), characterized in that the rocking body (1) comprises a base (2) extended by a trunk (3), in that the base (2) comprises a convex lower surface arranged opposite the trunk to be in contact with the ground in a vertical position of the tilting body, and in that the tilting body (1) of a predetermined weight, has a center of gravity arranged in the base (2), so that, the rocking body (1) being placed on its base, the weight of the rocking body (1) exerts a restoring force of said rocking body (1) in the vertical position when said rocking body is inclined with respect to the ground in because of a force exerted by a player on the rocking body.

1 1. Use according to claim 11, during which the force on the rocking body is exerted by an upper limb or a lower limb of the player.

12. Tilting body (1) comprising a base (2) extended by a trunk (3), the trunk (3) being arranged to be inflated with air, the base (2) being arranged to be inflated with a a fluid heavier than air and comprising a convex bottom surface arranged opposite the trunk to be in contact with the ground in a vertical position of the tilting body, the tilting body (1), of a predetermined weight, having a center of gravity arranged in the base (2), so that, the tilting body (1) being placed on its base (2), the weight of the tilting body (1) exerts a restoring force of said tilting body (1 ) in the vertical position when said rocking body is inclined with respect to the ground, the rocking body comprising an intermediate piece between the trunk (3) and the base (2) so that the pressure in the base (2) is independent of the pressure in the trunk (3) when the trunk (3) and the base (2) are inflated, vibrations and present in the tilting body when in use, and characterized in that the tilting body (1) comprises a sensor system (14) arranged to detect movements of the tilting body (1) and to communicate with a digital processing unit (5)

13. Tilting body (1) according to claim 12, characterized in that it comprises isolation means arranged to isolate the vibrations of the sensor system (14).

14. Tilting body (1) according to claim 13, characterized in that the isolation means comprise at least one strap gripping the trunk (3) when inflated, and arranged between a striking zone on the trunk (3). ) and the sensor system (14).

15. tilting body (1) according to claim 13, characterized in that the isolation means is a foam arranged between the rocking body (1) and the sensor system (14).