WO2010122261A2 - Tapis adapte aux deplacements dans une realite virtuelle - Google Patents
Tapis adapte aux deplacements dans une realite virtuelle Download PDFInfo
- Publication number
- WO2010122261A2 WO2010122261A2 PCT/FR2010/050754 FR2010050754W WO2010122261A2 WO 2010122261 A2 WO2010122261 A2 WO 2010122261A2 FR 2010050754 W FR2010050754 W FR 2010050754W WO 2010122261 A2 WO2010122261 A2 WO 2010122261A2
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- WIPO (PCT)
- Prior art keywords
- core
- envelope
- balls
- base
- virtual reality
- Prior art date
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/04815—Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0062—Monitoring athletic performances, e.g. for determining the work of a user on an exercise apparatus, the completed jogging or cycling distance
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- G—PHYSICS
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/0015—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with an adjustable movement path of the support elements
- A63B22/0017—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with an adjustable movement path of the support elements the adjustment being controlled by movement of the user
- A63B2022/002—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with an adjustable movement path of the support elements the adjustment being controlled by movement of the user electronically, e.g. by using a program
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/0025—Particular aspects relating to the orientation of movement paths of the limbs relative to the body; Relative relationship between the movements of the limbs
- A63B2022/0028—Particular aspects relating to the orientation of movement paths of the limbs relative to the body; Relative relationship between the movements of the limbs the movement path being non-parallel to the body-symmetrical-plane, e.g. support elements moving at an angle to the body-symmetrical-plane
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
- A63B2022/0271—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills omnidirectional
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- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0021—Tracking a path or terminating locations
- A63B2024/0056—Tracking a path or terminating locations for statistical or strategic analysis
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- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0087—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
- A63B2024/0093—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load the load of the exercise apparatus being controlled by performance parameters, e.g. distance or speed
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
- A63B24/0087—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
- A63B2024/0096—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load using performance related parameters for controlling electronic or video games or avatars
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- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
- A63B22/0285—Physical characteristics of the belt, e.g. material, surface, indicia
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/10—Positions
- A63B2220/13—Relative positions
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- A63B2220/16—Angular positions
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- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/20—Distances or displacements
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/50—Force related parameters
- A63B2220/51—Force
- A63B2220/52—Weight, e.g. weight distribution
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/50—Force related parameters
- A63B2220/58—Measurement of force related parameters by electric or magnetic means
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
- A63B2220/801—Contact switches
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/01—Indexing scheme relating to G06F3/01
- G06F2203/012—Walk-in-place systems for allowing a user to walk in a virtual environment while constraining him to a given position in the physical environment
Definitions
- the present invention relates to a device adapted to movements in a virtual reality, without the risk of encountering an obstacle of physical reality.
- the prior art provides several complex solutions that tend to keep the person in a restricted physical space by moving it on a device that compensates in real space displacements it performs in the virtual space.
- a first among these devices comprises a plurality of transverse conveyors driven longitudinally in an endless loop.
- the loop moves the mats forward or back of the loop, and each mat can move to the right or left of the loop, independently, under the steps of the person and in the direction opposite to that of moving this person into virtual reality.
- the person remains substantially in the same place, in the middle of the device.
- Such a device is particularly bulky and complex and particularly unsuitable for use of the leisure type.
- a second of these devices comprises several plates moving on the ground of the real place, coming in front of the steps of the person and bringing it in the opposite direction of its displacements.
- the person moves in a small and controlled space.
- Such a device is less bulky than the first. It is however difficult to implement. It is also not very responsive, especially in case of rapid movements of the person in virtual reality.
- the object of the invention is to propose a device for moving a person into virtual reality, which allows this person to evolve in a restricted space of physical reality, simple to manufacture and to implement and which can be adapted to a playful use.
- the invention proposes to provide a device characterized in that it comprises a substantially rigid core and an envelope arranged to be able to move in all directions around the core, the envelope forming with the core a surface for the displacement of a person, the assembly formed by the core and its envelope resting on appropriate support means.
- the envelope can be slidably mounted against the core against at least a portion of the core.
- Means are advantageously provided for maintaining the core substantially stationary in space.
- These means for holding the stationary core may comprise lateral ball stop means or mutual engagement means, for example a convex shape which engages with a concave complementary shape in the core, preferably a convex shape of the means of rotation.
- the device may comprise a matrix of balls in contact with the envelope.
- the balls are advantageously motorized so that they participate in the displacement of the envelope around the core.
- the matrix may be included in the support means or in the core.
- a device advantageously comprises means for slaving a displacement of the envelope to a displacement of a user in the virtual reality.
- the displacement surface is preferably substantially planar.
- the envelope is preferably such that it would be likely to take the form of a sphere if it was tensioned uniformly.
- the support means advantageously comprise means for tilting the displacement surface.
- the upper face of the core may comprise pressure sensors which are preferably regularly distributed there, especially to know the position of the feet of the person using the device.
- the envelope may be substantially translucent or transparent and the top face of the core include a light display for display to the person using the device.
- FIG. 2 illustrates a second embodiment for a device according to the invention
- FIG. 3 is a schematic axial section of a third preferred embodiment for a device according to the invention.
- FIG. 4 illustrates a schematic plan view of the belt drive means, in the embodiment of FIG. 3;
- FIG. 5 illustrates the principle of the drive mode used in particular in the embodiment of FIGS. 3 and 4, and particularly illustrated in FIG. 4; and FIG. 6 illustrates a use of the device of FIGS. 3 and 4.
- Figures 1 to 3 each represent a device 1 adapted to the displacement of a user 2 in a virtual reality.
- Each device forms a multi-directional belt 4,5, that is to say which offers a displacement surface 3 which allows the user to move in all directions, parallel to this surface 3.
- the moving surface 3 is substantially flat and horizontal.
- the moving surface 3 is formed by the combination of a core 4 and an envelope 5.
- the core is shown in section.
- the core 4 is substantially rigid, it may be a solid material, or hollow.
- the casing is movably mounted by sliding around the core. It is made of a flexible material and little or not elastic. It has a shape such that in every point it is substantially identical, that is to say substantially isotropic, in each of the directions of the envelope from this point. Thus, the envelope is preferably provided such that it would take substantially the shape of a sphere if a uniform pressure was applied inside this envelope, with the exception of any other constraint.
- the envelope can be formed in the same way as a tennis ball, by assembling and sewing two identical and complementary elements.
- the assembly formed by the envelope around the core rests on support means 6 formed by a base 6.
- the base 6 is substantially rigid, and is intended to rest on the ground of a place of physical reality.
- the assembly formed of the base 6 and the mat 4.5 has a shape substantially of revolution about a vertical axis.
- the base 6 has a superior shape
- the core 4 has a substantially bean-shaped axial section, as illustrated in FIG. 1.
- the carpet 4.5 rests simply on the base 6, by interlocking its concave shape 8 on the complementary convex shape 7 of the base 6.
- An upper zone 10 of the base 6 carries balls 12. This zone 10 occupies substantially the convex shape 7 on which the carpet 4,5 rests.
- Each of the balls 12 is rotated about a respective fixed point relative to the base 6.
- Each ball is mounted so that it can perform, substantially without friction, any rotation around its respective fixed point.
- the balls 12 are evenly distributed over the zone 10 of the base 6.
- the belt 4,5 is designed to rest only on the balls 12, by contacting the balls on the outer surface of the envelope 5.
- the core 4 is held substantially stationary relative to the base 6.
- the contact between the envelope 5 and its core 4 is provided such that when a person 2 moves on the surface 3, the strongly exerted by the person on the envelope and the friction exerted by the set of balls to the their contact with the envelope are each much greater than the friction of the envelope on its core.
- a lubricant is used between the casing and the core to limit the friction that occurs therein.
- the arrangement of the casing 5 around the core ensures a good seal, so that the lubricant remains confined.
- the circulation of the casing around the core allows a good distribution of the lubricant and the recovery of the lubricant which would be dragged down by the effect of gravity.
- the envelope is preferably chosen from a material with little or no elasticity, so that contact with the person 2, or the balls 12, does not cause local deformation of the envelope.
- the envelope may, for example, be a canvas.
- the balls 12 are motorized and their rotation is preferably slaved to the movement of the person in the virtual reality.
- the envelope at the location of the moving surface 3, moves substantially the same distance in an opposite direction.
- the person is constantly brought back or maintained in the moving surface 3, in a position such that it offers him some steps in advance in a direction that can be determined statistically by the device as a function of the instantaneous movement of the person and the instantaneous orientation of his head.
- Such a position is generally located near an edge of the device 1, so that in front of the person extends the largest possible field of movement.
- the mat can move gradually under the steps of the person, allowing him to take a little advance in his direction of travel, which allows for a very gradual acceleration of the carpet, weakly or not felt by the user.
- the servo can be calculated from a detection of the forces exerted by the person on the carpet, when it moves.
- the slaving can also be calculated from the measurements of a gyro sensor carried by the body of the person 2, as will be described with reference to FIG. 2.
- the core 4 has a substantially oblong axial section and the base 6 has a bowl shape.
- the carpet 4,5 is housed in the bowl formed by the base.
- Support balls 12 are arranged at the bottom of the bowl.
- Other balls 13, forming lateral stops, are arranged at the inner periphery of the base 6 in order to maintain the carpet 4,5, substantially frictionless, immobile inside the base 6.
- the thrust balls 13 can be mounted crazy , or, motorized and enslaved to leave that they participate with the support balls in the displacement of the envelope 4.
- the device further comprises a helmet 21 for displaying the virtual reality in front of the eyes of the person 2 who uses the device, a console 22, to generate the virtual reality, and a belt carrying a gyroscopic sensor 23. The data collected by the sensor 23 is transmitted to the console
- the console 22 calculates in real time the images that must be displayed by the helmet 21 and transmits the necessary information, as illustrated in the figure by the arrow T2. Similarly, and substantially simultaneously, the console 22 calculates in real time the movements that must be made by the envelope around the core and transmits, according to T2, the information necessary for the corresponding servocontrol of the balls 12, 13. In this configuration , the movement of the person in the virtual reality is taken into account, even if it is not in constant contact with the carpet, for example during a race or a jump.
- Figures 3 and 4 describe a device 1 according to a third preferred embodiment of the invention.
- the core 4 and the base 6, with reference to Figure 3.
- the envelope 5 is not shown in Figures 3 and 4.
- the base and the core are vertically separated from each other.
- the envelope is designed to envelop the core and be pinched, in its lower part, between the core and the base, the carpet formed by the core and its resting envelope on the base.
- the base 6 is of substantially circular shape about a vertical axis Z. It comprises a substantially flat lower face 41 which rests on three feet 40 regularly distributed close to the periphery of said lower face 41.
- the base 6 further comprises an upper face 42 of complex shape.
- the face 42 comprises an annular depression 43, substantially flat.
- the depression 43 is limited to the outside by an embankment annular outer 44 and inside by an annular inner slope 45.
- the upper face 42 further comprises a central well 46, open upwards and delimited externally, in its upper part, by the inner slope 45. In the illustrated example, the well is closed downwards by a bottom 47 whose level is less than that of the depression 43.
- the outer edges of the lower face 41 and the upper face 42 of the base 6 are interconnected by a substantially cylindrical portion 48.
- the core 6 is hollow. It comprises an upper face 51 substantially flat and horizontal. It also comprises a lower face 52 of complex shape complementary to that of the upper face 42 of the base 6.
- the lower face 52 of the core comprises an appendage 53 provided to be inserted vertically in the well 46.
- the appendix 53 is surrounded by an inner annular groove 54 complementary to the inner slope 45.
- the lower face 52 also forms a skirt 55 intended to extend around the base 6 along its cylindrical portion 48.
- the skirt 55 is internally bounded by a groove outer ring 56 complementary to the outer slope 44.
- the grooves 54,56 delimit between them a substantially horizontal annular plate 57, complementary to the bowl 43.
- the shape of the core, and that complementary to the base is provided to absorb at least a portion of the deformations of the envelope 5, designed as a sphere but used in a flattened form, at least in the user's movement zone, on the upper face 51 of the nucleus.
- the base 6 comprises balls 60 arranged in four horizontal rings 61-64. Each ball 60 is mounted mad through the upper face 42 of the base 6, in a respective housing. A first ring 61 of balls 60 is disposed substantially mid-height of the well 46, it allows in particular the maintenance of the envelope 5, stretched, away from the walls of the well 46. A second ring 62 of balls 60 is disposed at the top of the inner slope 45, and a third ring 63 of balls 60 is disposed substantially at the junction of the inner slope 45 and the depression 43. The rings 61, 62, 63 cooperate in particular to maintain the envelope 5, stretched, away from the walls of the inner slope 45. A fourth ring 64 of balls 60 is disposed at the top of the outer slope 44, along its edge overlooking the depression 43.
- the device 1 is provided so that the ring of balls 65 serves as support for the carpet on the base, that is to say that only this ring take up the loads of the carpet 4,5 and what it carries, including the weight of the person using the device.
- the base further comprises another ring of balls 65, disposed at the top of the outer slope 44, along its edge vis-à-vis the skirt 55.
- the core and the base also comprise an angular sensor 71, one of which portion is disposed at the bottom 47 of the well 46 and the other portion is disposed opposite the first, at the end of the appendix 53. The angular sensor is provided to determine the relative angular position of the base 6 and the core 4.
- At least one of the balls 65 is motorized, out that it allows to position angularly around the vertical axis Z, the core relative to the base. It also makes it possible to substantially maintain the belt 4.5 in a given angular position relative to the base 6.
- the belt is provided to freely rotate about its axis 360 °.
- the device 1 is provided so that the ring of balls 65 serves as support for the carpet on the base, that is to say that only the crown take up the loads of the carpet 4,5 and what it carries, including the weight of the person using the device.
- the base comprises a ring of balls disposed at the periphery of the end of the appendix 53, out that they strongly avoid the envelope 5 against the appendix 53.
- Appendix 53 further comprises vertical extension means 67, schematized by bellows in Figure 3.
- the vertical extension means 67 can maintain the envelope 5 stretched, especially to provide a flat surface and regularly moved, at the feet of the user. This also makes it possible to compensate for an expansion of the envelope, for example due to its heating during its use, or to compensate for deformations, for example related to the aging of the envelope.
- the well 46 is therefore provided to allow free extension of the appendix 53, within the prescribed limits.
- the plate 57 carries a matrix of driving balls 72, more particularly illustrated in FIG. 4.
- the balls are mounted in the plate, each in a respective housing so that they can move in rotation along any axis relative to said housing, while being immobile in translation relative to said housing.
- the driving balls 72 are provided to simultaneously have the same movement relative to their respective housing. They are driven by two single motors M1 and M2, according to a principle which will be explained with reference to FIG.
- the power supply of the carpet is made without contact, by inductive means 75,76.
- the inductive means 75,76 comprise a first coil 75 disposed in the base around the well 46 and a second coil 76, arranged in the appendix 53, so that they are coaxial.
- Sensors 78 are advantageously provided at the periphery of the base, to cooperate with a helmet worn by the user, to determine the position of the user's head, and the movements of his head, relative to the carpet.
- the upper face of the core 4 comprises pressure sensors 81 regularly distributed over its surface. They are illustrated in Figure 3 by an alignment of white rectangles. They make it possible to determine the position of the user's feet, to measure pressure variations, and for example to help anticipate a movement or a jump.
- the upper face of the core 4 further comprises light elements, forming pixels, illustrated in Figure 3 by an alignment of alternately white and black rectangles.
- the pixels together form a screen and allow a bright display.
- the envelope is advantageously provided translucent or transparent so that the display is visible through the envelope.
- the display can be adapted to reproduce the floor of the place of virtual reality.
- the display 82 combined with the pressure sensors 81, may constitute a touch screen, which may be used to control the device with the foot, for example by displaying commands such as start, pause, or stop.
- the display 82 may represent a game, such a hopscotch.
- the cross 83 when touched with the foot, stops the operation of the device.
- the cross can be moved on the poster, so as to remain always accessible, although the device 1 tends to bring the user 2 always to an optimal position, which leaves in front of it a greater possibility of displacement.
- the display is made using light-emitting diodes (LEDs).
- LEDs light-emitting diodes
- the skirt 55 limits the possibility that things can be introduced between the base 6 and the carpet 4,5. In particular, the limit skirt the introduction of dust or small objects liable to disturb the functioning of the device 1.
- the feet 40 comprise pressure sensors.
- the information given by these sensors can be used in several ways. First, the sum of the pressures must remain substantially constant. A variation of pressure beyond a given value is interpreted as the appearance of a second person on the carpet, which is potentially dangerous, and causes the automatic and immediate shutdown of the device 1. Secondly, they make it possible to determine by triangulation the position and the displacement of the center of gravity of the carpet user, and control the movement of the envelope accordingly. Third, they are used to determine the effort required to move the envelope.
- the feet are adjustable in height, so that it is possible to compensate for some irregularity of the ground on which the device rests.
- the feet may include jack means, so that the device may be tilted, to simulate a slope for the user.
- the jack means can be provided, for example to simulate a slope that can vary from 0% to 6%.
- the arrangement of the balls 12 predisposes them to fouling, in particular by gravitational accumulation of dust in the housing of each connecting rod, or by the entrainment of dust on the surface of the balls.
- driving balls 72 are carried by the core 4 and disposed below the core.
- the envelope 5 (not shown in Figures 3 and 4), being provided to envelop the core, the balls are protected from external dust by the envelope.
- the housing of the balls are oriented downwards, so that no dust or small element can enter by gravity.
- this noise especially during Accelerating is an index that connects the user to the real world and can disrupt his vision of the virtual world, including disrupting his balance.
- the device as illustrated has the following characteristics: - outside diameter D4 of the carpet: lm80
- each driving ball 30 to 40 mm, preferably 35 mm
- the device may be integrated in a floor, so that it does not have a difference in level with the floor.
- the device may be disposed at the bottom of a pit, or inside a false floor.
- FIG. 5 Three columns 91A, 91B, 91C of two balls 92, representative of the balls 12 or 72 of the examples above, are represented.
- the columns are parallel to an axis Y each column 91 is disposed between two shafts 93, 93A-93D parallel to each other and with the Y axis.
- Each ball is mounted to be able to perform any rotation around a respective point held fixed.
- the balls of the same column are separated by a pitch P along the Y axis.
- An axis X perpendicular to the axis Y, defines, with the axis Y, a plane passing through the center of the balls and including the tree axes 93.
- An Z axis is defined perpendicular to the X, Y plane.
- the motorization comprises two motors Ml, M2.
- Each shaft 93A is directly engaged with the motor Ml, and a second shaft 93B is directly engaged with the motor M2.
- a third shaft 93 C is indirectly driven by the motor Ml, thanks to a return by pulley and belt 94.
- the fourth shaft 93D is indirectly driven by the motor M2, thanks to another return by pulley and belt 94.
- Each shaft 93 carries three discs 95 of identical dimensions to each other, coaxial with the shaft 93 and separated from each other, along the Y axis, with the same pitch P as the balls. The balls and discs are arranged so that each ball is in sliding contact with a respective disc of each of the shafts between which it is located.
- the contact is offset by a distance D95 from one side or the other of an equatorial plane PE perpendicular to the axis Y.
- the distance D95 is identical regardless of the ball 92.
- the balls of the first and third columns 91A, 91C the offset is positive, that is to say along the direction of the Y axis.
- the offset is negative, that is to say in the opposite direction to the Y axis.
- the motors Ml and M2 are controlled in speed and in direction of rotation, in order to drive the balls, all simultaneously in the same way.
- the means described in particular with reference to the third embodiment are not its own, provided that they are compatible with a particular embodiment.
- it can be provided in one embodiment, for example the first or the second, means for tilting the base so that the moving surface provides the user with the sensation of going up, down or downhill.
- Magnets or electromagnets in opposition can be placed in the base and in the core so that they tend to lift the core, and thus limit the pinching of the envelope between the base and the core, to limit the efforts to apply to the envelope to move around the core. They can also be arranged out that they tend to refocus the core relative to the base, thus compensating for movement of the carpet under the action of the feet of the user. These two actions can be combined or not.
- One or more sensors may be arranged between the base and the core to detect an actual accidental lifting of the core relative to the base, which may be the sign of the introduction of a garment, snapped by the device.
- the device is then advantageously provided to stop at this signal, as a safety measure.
- the base can include the console that defines virtual reality. It may also include means of adjustment or configuration, including a storage media reader, in particular to be associated with one or more type (s) of commercial console.
- the gyro means can be integrated into the helmet rather than a belt. Thus, it can be expected, when the user turns the head in one direction, to anticipate a displacement of the user in the same direction, and to initiate the movement of the carpet accordingly.
- the well may not comprise bottom and be provided open downward, that is to say vertically through the base.
- conduction transmission can be provided.
- each pole for example phase and neutral, one can provide terminals vis-à-vis, one carried by the base 6, the other by the carpet.
- the envelope comprises contact pads passing through its thickness and regularly distributed, so that at any time, whatever the position of the envelope around the core, for each pole at least one pellet is in simultaneous contact with the two terminals of the pole.
- a continuous supply of the carpet is provided by the base.
- a brush system disposed on the periphery of the base and licking the surface is enveloping it.
- a device according to the invention can be associated with a game console. It can also be used in a gym or for muscular rehabilitation, for example, walking rehabilitation.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Physical Education & Sports Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Rehabilitation Tools (AREA)
- Details Of Measuring And Other Instruments (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10723706A EP2422261A2 (fr) | 2009-04-21 | 2010-04-20 | Tapis adapte aux deplacements dans une realite virtuelle |
CA2796423A CA2796423A1 (fr) | 2009-04-21 | 2010-04-20 | Tapis adapte aux deplacements dans une realite virtuelle |
US13/642,194 US20130132910A1 (en) | 2009-04-21 | 2010-04-20 | Belt adapted to movements in virtual reality |
JP2012506549A JP2012524581A (ja) | 2009-04-21 | 2010-04-20 | 仮想現実での動きに適合するベルト |
CN2010800248628A CN102460345A (zh) | 2009-04-21 | 2010-04-20 | 适于虚拟现实中的移动的带 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0901912 | 2009-04-21 | ||
FR0901912A FR2944615B1 (fr) | 2009-04-21 | 2009-04-21 | Tapis adapte aux deplacements dans une realite virtuelle |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010122261A2 true WO2010122261A2 (fr) | 2010-10-28 |
WO2010122261A3 WO2010122261A3 (fr) | 2011-05-12 |
Family
ID=41277748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2010/050754 WO2010122261A2 (fr) | 2009-04-21 | 2010-04-20 | Tapis adapte aux deplacements dans une realite virtuelle |
Country Status (8)
Country | Link |
---|---|
US (1) | US20130132910A1 (fr) |
EP (1) | EP2422261A2 (fr) |
JP (1) | JP2012524581A (fr) |
KR (1) | KR20120027259A (fr) |
CN (1) | CN102460345A (fr) |
CA (1) | CA2796423A1 (fr) |
FR (1) | FR2944615B1 (fr) |
WO (1) | WO2010122261A2 (fr) |
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KR20160017916A (ko) * | 2014-08-07 | 2016-02-17 | 한국전자통신연구원 | 가상 훈련 시뮬레이션 제어 장치 및 그 방법 |
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- 2009-04-21 FR FR0901912A patent/FR2944615B1/fr not_active Expired - Fee Related
-
2010
- 2010-04-20 KR KR1020117027752A patent/KR20120027259A/ko not_active Application Discontinuation
- 2010-04-20 WO PCT/FR2010/050754 patent/WO2010122261A2/fr active Application Filing
- 2010-04-20 CN CN2010800248628A patent/CN102460345A/zh active Pending
- 2010-04-20 CA CA2796423A patent/CA2796423A1/fr not_active Abandoned
- 2010-04-20 JP JP2012506549A patent/JP2012524581A/ja active Pending
- 2010-04-20 EP EP10723706A patent/EP2422261A2/fr not_active Withdrawn
- 2010-04-20 US US13/642,194 patent/US20130132910A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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None |
Also Published As
Publication number | Publication date |
---|---|
WO2010122261A3 (fr) | 2011-05-12 |
EP2422261A2 (fr) | 2012-02-29 |
CA2796423A1 (fr) | 2010-10-28 |
FR2944615B1 (fr) | 2013-11-22 |
CN102460345A (zh) | 2012-05-16 |
FR2944615A1 (fr) | 2010-10-22 |
KR20120027259A (ko) | 2012-03-21 |
US20130132910A1 (en) | 2013-05-23 |
JP2012524581A (ja) | 2012-10-18 |
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