Simulation device for virtual reality experiences
Simulation device having a platform positionable in a horizontal plane, a rotary base secured to the platform rotatable relative to the platform about a first axis extending vertically when the platform is in the horizontal plane, a movable structure supported by the rotary base and a control unit. The movable structure has a first ring secured to the rotary base rotatable relative to the rotary base about a second axis perpendicular to the first axis, a second ring internal relative to the first ring and secured thereto rotatable relative to the first ring about a third axis perpendicular to the second axis, and a support element, internal relative to the second ring, secured thereto rotatable relative to the second ring about a fourth axis perpendicular to the third axis. The control unit configured to move a user in a seat of the support element towards a desired position.
1 . A simulation device comprising:
a platform which is intended to be positioned in a horizontal plane, said platform supporting a seat member, said seat member defining a seat for a user and defining an upright position,
wherein said user defines a frontal axis, a sagittal axis and a vertical axis;
a rotary base which is secured to the platform with the ability to rotate with respect to the platform about a first rotation axis which extends in a vertical direction when the platform is positioned in the horizontal plane,
a movable structure which is supported by the rotary base, the movable structure comprising:
a first ring which is secured to the rotary base with the ability to rotate with respect to the rotary base about a second rotation axis which is perpendicular to the first rotation axis and which is, when said seat member is in said upright position and said user is properly seated, parallel to said frontal axis,
a second ring which is internal with respect to the first ring and which is secured thereto with the ability to rotate with respect to the first ring about a third rotation axis which is perpendicular to the second rotation axis and which is, when said seat member is in said upright position and said user is properly seated, parallel to said sagittal axis, and
a support element which is internal with respect to the second ring and which is secured thereto with the ability to rotate with respect to the second ring about a fourth rotation axis which is perpendicular to the third rotation axis, the support element comprising the seat for receiving a user of the simulation device,
a control unit which is operatively connected to the rotary base, first ring, second ring and support element and which is configured to rotate those elements about the respective rotation axes so as to move the user who is received in the seat towards a desired position on the basis of a control signal which represents the desired position.
2 . The simulation device according to claim 1 , wherein the control unit is provided to rotate the rotary base, first ring, second ring and support element about the respective rotation axes so that the simulation device takes up a configuration which tends towards an optimum configuration, in which a triplet of the rotation axes are substantially orthogonal to each other, during the movement of the user who is received in the seat towards the desired position.
3 . The simulation device according to claim 1 , wherein the control unit is configured to rotate at least one of the rotary base, first ring, second ring and support element on the basis of the rotation of at least one of the other of the rotary base, first ring, second ring and support element about the individual rotation axis to prevent a blocking condition of the simulation device, in which the third rotation axis and fourth rotation axis extend one in the direction of the first rotation axis and the other in the direction of the second rotation axis.
4 . The simulation device according to claim 3 , wherein the control unit is configured to rotate the rotary base on the basis of the rotation of at least one of the first ring, second ring and support element about the individual rotation axis so as to prevent the blocking condition of the simulation device.
5 . The simulation device according to claim 1 , wherein the simulation device further comprises a first sensor, a second sensor, a third sensor and a fourth sensor which are connected to the rotary base, second ring, first ring and support element, respectively, in order to generate respective signals correlated with the angle of rotation of these elements about the respective rotation axes, wherein the control unit is operatively connected to the sensors so as to move the seat towards the desired position on the basis of the control signal and the signal generated by at least one of the sensors.
6 . The simulation device according to claim 1 , wherein the support element comprises a third ring which is internal with respect to the second ring and which is secured thereto with the ability to rotate with respect to the second ring about the fourth rotation axis.
7 . The simulation device according to claim 1 , wherein the first ring and second ring are connected to each other so as to form a rotation thrust bearing which is provided with an external ring and an internal ring which can slide on the external ring, wherein the first ring and second ring define the external ring and the internal ring of the rotation thrust bearing, respectively.
8 . The simulation device according to claim 7 , wherein the support element comprises a rod which extends longitudinally between two ends thereof, the rod being secured to the second ring by means of the ends thereof with the ability to rotate with respect to the second ring about the fourth rotation axis.
9 . The simulation device according to claim 1 , wherein the simulation device is provided with a control device which is arranged in the region of the seat so that a user who is received in the seat can interact with the control device, the control device being operatively connected to the control unit and being configured to generate the control signal in accordance with an interaction of the user with the control device.
10 . The simulation device according to claim 9 , wherein the control device comprises a joystick which can be actuated by a user who is received in the seat of the movable structure and the control signal is correlated with the movement of the joystick maneuvered by the user.
11 . A method for moving a simulation device according to claim 1 , comprising a step of rotating the rotary base, the first ring, the second ring and the support element about the respective rotation axes to move the user who is received in the seat of the movable structure towards a desired position on the basis of a control signal which represents the desired position.