JP2010026865A - Acceleration sense presentation device, acceleration sense presentation system, information processor, acceleration sense presentation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new and improved acceleration sense presentation apparatus which presents acceleration sense to a user by optionally varying the gravity center of a headgear type device to wear on the head. <P>SOLUTION: The acceleration sense presentation apparatus includes: a frame to wear on the head of the user; at least one or more weights provided on the frame; and a drive part which moves the weight on the frame. The acceleration sense presentation apparatus causes the drive part to move the weight to vary the gravity center of the apparatus and thereby presents the acceleration sense to the user. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an acceleration sensation presentation apparatus, an acceleration sensation presentation system, an information processing apparatus, and an acceleration sensation presentation method.

  In recent years, for example, in game centers such as game centers and amusement parks, simulated simulation devices that provide simulated experiences by creating a pseudo space on the video and giving the illusion of being in that place to humans, etc. Is installed. Also, in home game machines, a function that allows a game character to be experienced by giving vibration to a controller or the like is widely accepted. Thus, by providing the user with a so-called virtual reality sensation as if they were actually experiencing, the user can enjoy a simulated experience.

  As an apparatus for providing a virtual reality feeling to a user, for example, there is an apparatus described in Patent Document 1. Japanese Patent Application Laid-Open No. 2004-228561 discloses an apparatus that can simultaneously swing a user sitting on a seat by fixing a seat on which a user sits on a stage and swinging the stage by a driving unit. Further, the apparatus described in Patent Document 1 can generate swing data in accordance with the movement of a vehicle or a character on a video, for example, and swing the stage based on the swing data. Thus, the device can provide the user with a virtual reality sensation as if he / she really experienced it as a vehicle or character on the video. As a result, the user can enjoy a simulated experience such as riding on a vehicle on a video or a simulated experience such as acting as a character on a video.

JP 2000-339487 A

  However, since an apparatus like patent document 1 rocks a user and a seat simultaneously with a stage, it is necessary to fix the seat for a user to sit on a stage. Therefore, there arises a problem that the apparatus itself becomes large and expensive. Also, in order to provide such a virtual reality sensation in the home, various problems such as space, power consumption, safety, and price will occur in an apparatus using such a stage.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide an acceleration sensation to the user by arbitrarily changing the center of gravity of a headgear-type device attached to the head. It is an object of the present invention to provide a new and improved acceleration sensation presentation apparatus, an acceleration sensation presentation method, an acceleration information processing apparatus, and an acceleration sensation presentation system that can be presented.

  In order to solve the above-described problem, according to an aspect of the present invention, a frame that is worn on a user's head, at least one or more weights provided in the frame, and a drive that moves the weights on the frame. And an acceleration sensation presentation device.

  With this configuration, the acceleration sensation presentation apparatus can move at least one weight provided on the frame by the driving unit. Thereby, the acceleration sensation presentation device can change the center of gravity of the device itself.

  In addition, the frame is fixed to the base frame so as to be rotatable about a base frame that is in close contact with and surrounds at least a part of the user's head, and a first direction that is an arbitrary radial direction of the base frame. A substantially arc-shaped first rotating frame and a substantially arc-shaped second rotating frame fixed to the base frame so as to be rotatable about a second direction orthogonal to the first direction may be included. In this case, the driving unit includes a first driving unit that rotates the first rotating frame about the first direction, a second driving unit that rotates the second rotating frame about the second direction, and Can also be included.

  The weight includes a first weight fixed to the top of the substantially arc-shaped first rotating frame and a second weight fixed to the top of the substantially arc-shaped second rotating frame. But you can. In this case, the first driving unit moves the first weight by rotating the first rotating frame, and the second driving unit rotates the second rotating frame to rotate the second rotating frame. The weight can also be moved.

  The first rotating frame is provided with a first sliding hole having a long hole along an arc, and the second rotating frame is provided with a second sliding hole having a long hole along the arc. May be inserted into the first sliding hole and the second sliding hole at a position where the first rotating frame and the second rotating frame intersect. In this case, the first driving unit rotates the first rotating frame to move the weight by sliding the weight along the second sliding hole, and the second driving unit includes: The weight may be moved by rotating the second rotating frame and sliding the weight along the first sliding hole.

  In addition, the frame includes a base frame that is in close contact with and surrounds at least a part of the user's head, a substantially hollow rectangular slide auxiliary frame that is fixed above the base frame, and an arbitrary diameter of the base frame. A first slide frame having a long plate shape, which is slidable in a second direction perpendicular to the first direction, the first direction being a longitudinal direction, and the second direction is a longitudinal direction. And a long plate-shaped second slide frame provided in the slide auxiliary frame so as to be slidable in the first direction. In this case, the drive unit may include a first drive unit that slides the first slide frame in the second direction and a second drive unit that slides the second slide frame in the first direction. it can.

  The first slide frame is provided with a first sliding hole having a long hole whose longitudinal direction is the first direction, and the second slide frame has a first hole having a long hole whose longitudinal direction is the second direction. Two sliding holes may be provided, and the weight may be inserted into the first sliding hole and the second sliding hole at a position where the first slide frame and the second slide frame intersect. In this case, the first driving unit moves the weight by sliding the first slide frame and sliding the weight along the second sliding hole, and the second driving unit includes: The weight can be moved by sliding the second slide frame and sliding the weight along the first sliding hole.

  You may further provide the reproduction | regeneration circuit which transmits a reproduction | regeneration acceleration signal to the said drive part based on the predetermined acceleration information received from an external apparatus or a network. In this case, the drive unit can also control the movement of the weight based on the reproduction acceleration signal.

  The acceleration sensation presentation apparatus may further include a head mounted display that displays a predetermined image. In this case, the reproduction circuit can further transmit a predetermined video signal received from the external device or the network to the head mounted display.

  The acceleration sensation presentation apparatus may further include a speaker that outputs a predetermined sound. In this case, the reproduction circuit can further transmit a predetermined audio signal received from the external device or the network to the speaker.

  The mass m of the weight may be ½ or more of the mass M of the acceleration sensation presentation apparatus.

  In order to solve the above problem, according to another aspect of the present invention, an acceleration sensation presentation system including an imaging device, an acceleration sensation presentation device, and a reproduction circuit is provided. In this case, the imaging apparatus detects the predetermined acceleration data in synchronization with the video and the audio, the imaging unit that captures the predetermined video, the audio recording unit that records the predetermined audio in synchronization with the video. An acceleration sensor. The acceleration sensation presentation device displays a frame that is worn on the user's head, at least one weight provided on the frame, a drive unit that moves the weight on the frame, and a predetermined image. A head-mounted display and a speaker that outputs predetermined sound can be provided. Further, the reproducing circuit synchronizes the video signal captured by the imaging unit, the audio signal recorded by the audio recording unit, and the acceleration signal detected by the acceleration sensor, respectively, It can transmit to a display, the said speaker, and the said drive part.

  The reproduction circuit may multiply the acceleration signal detected by the acceleration sensor by a predetermined gain and transmit the multiplication signal to the acceleration sensation presentation apparatus as a reproduction acceleration signal.

  Further, the reproduction circuit may appropriately change the gain according to the magnitude of the reproduction acceleration signal.

  In addition, the imaging device may be provided in a riding moving unit or a model moving device of the moving unit, and may transmit the video signal, the audio signal, and the acceleration signal to the reproduction circuit via a network.

  In order to solve the above problem, according to another aspect of the present invention, there is provided an acceleration sensation presentation system including a game device that reproduces a predetermined game program, an acceleration sensation presentation device, and a reproduction circuit. The In this case, the acceleration sensation presentation apparatus displays a frame that is worn on the user's head, at least one weight provided on the frame, a drive unit that moves the weight on the frame, and a predetermined image. And a speaker that outputs a predetermined sound. In addition, the reproduction circuit can synchronize and transmit the video signal, the audio signal, and the acceleration signal incorporated in the game program to the head mounted display, the speaker, and the driving unit, respectively.

  In order to solve the above-described problem, according to another aspect of the present invention, a frame attached to a user's head, at least one weight provided in the frame, and the weight on the frame. A video signal to be displayed on the head-mounted display for an acceleration sensation presentation device comprising: a drive unit to be moved; a head-mounted display that displays a predetermined image; and a speaker that outputs a predetermined sound; Acceleration information comprising a playback circuit that synchronizes an audio signal output from the speaker and an acceleration signal that controls movement of the weight by the driving unit, and transmits the synchronized signals to the head mounted display, the speaker, and the driving unit, respectively. A processing device is provided.

  In order to solve the above-described problem, according to another aspect of the present invention, at least one or more weights provided on a frame attached to a user's head are moved on the frame by a driving unit. An acceleration sensation presentation method for presenting an acceleration sensation to the user is provided.

  As described above, according to the present invention, a new and improved acceleration sensation presentation capable of presenting an acceleration sensation to the user by arbitrarily changing the center of gravity of a headgear-type device worn on the head. An apparatus, an acceleration sensation presentation method, an acceleration information processing apparatus, and an acceleration sensation presentation system are provided.

Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol. The description will be made in the following order.
1. 1. Overview of acceleration sensation presentation device 2. Configuration of acceleration sensation presentation apparatus 100 according to the first embodiment. 3. Change in center of gravity of acceleration sensation presentation device 100 4. Installation example of acceleration sensation presentation device 100 5. System using acceleration sensation presentation device 100 6. Processing example of acceleration information by reproduction circuit 140 Modified example

(1. Overview of acceleration sensation presentation device)
The acceleration sensation presentation device according to the embodiment of the present invention presents an acceleration sensation to the user only with a headgear type device, unlike a device using a large and expensive stage that is conventionally installed in a game center or a game arcade. This is one of the features. Therefore, first, in describing the details of the embodiment of the present invention, an outline of the acceleration sensation presentation apparatus in the embodiment of the present invention will be described.

  The acceleration sensation presentation device according to the embodiment of the present invention is a headgear type device, and the user can experience virtual reality by wearing the device on the head. The acceleration sensation presentation device includes a movable weight having a predetermined weight. Therefore, the acceleration sensation presentation apparatus can change the center of gravity of the acceleration sensation presentation apparatus itself by moving the position of the weight. As a result, a predetermined force is applied in a predetermined direction to the head of the user wearing the acceleration sensation presentation device. That is, the acceleration sensation presentation device provides a predetermined acceleration sensation to the user by moving the weight position to change the center of gravity of the device itself and applying a predetermined force to the user in a predetermined direction. Can do. The acceleration sensation presentation device can change the center of gravity of the acceleration presentation device itself to an arbitrary position by moving the weight to a predetermined position according to the movement of the vehicle or character on the screen in a game or the like, for example. . That is, the acceleration sensation presentation device can present any acceleration sensation to the user in accordance with the movement of the vehicle or character on the screen in a game or the like. The details of the acceleration sensation presentation apparatus according to the embodiment of the present invention having such characteristics will be described below.

(2. Configuration of the acceleration sensation presentation apparatus 100 according to the first embodiment)
First, the overall configuration of the acceleration sensation presentation apparatus 100 according to the first embodiment of the present invention will be described. FIG. 1 is an explanatory diagram showing an outline of the overall configuration of the acceleration sensation presentation apparatus 100 according to the first embodiment.

  As shown in FIG. 1, the acceleration sensation presentation apparatus 100 is a headgear-type apparatus that is worn on a human head. The acceleration sensation presentation apparatus 100 mainly includes a frame 116 including a first rotating frame 102, a second rotating frame 104, and a base frame 106, a first weight 108, a second weight 110, a first driving unit 112, and a first driving unit 112. 2 drive unit 114. Each of these components will be described below.

  As shown in FIG. 1, the frame 116 mainly includes a first rotating frame 102, a second rotating frame 104, and a base frame 106. The base frame 106 is formed in a substantially circular shape so as to surround the human head. In addition, the base frame 106 is formed with a pair of first fixing portions 118 that coaxially form the first rotating frame 103 so as to be rotatable. In addition, the base frame 106 is formed with a pair of second fixing portions 120 that coaxially form the second rotating frame 104 so as to be rotatable. In the present embodiment, the axis on which the pair of first fixing portions 118 is formed is the wearer's front-rear direction and is referred to as the X axis in the following description. The axis on which the pair of second bottom portions 120 are formed is the left-right direction of the wearer orthogonal to the X axis, and is referred to as the Y axis in the following description. The X axis corresponds to the first direction of the present invention, and the Y axis corresponds to the second direction of the present invention. Of course, the X axis and the Y axis are examples for explaining the present embodiment, and the present invention is not limited to these. That is, the first direction can be set to an arbitrary radial direction of the base frame 106, and the second direction only needs to be a direction perpendicular to the first direction.

  The first rotating frame 102 is formed in an arc shape so as to cover the human head. The first rotating frame 102 is rotatably fixed to a first fixing part 118 formed on the X axis of the base frame 106, and can be rotated around the X axis by a first driving part 112 described later. . A first weight 108 having a predetermined weight is fixed to one side of the top of the first rotating frame 102. Therefore, when the first rotating frame 102 is rotated around the X axis by the first driving unit 112, the first weight 108 fixed to the first rotating frame 102 also moves. As a result, the center of gravity of the entire frame 116 changes. In the example of the acceleration sensation presentation apparatus 100 shown in FIG. 1, the first weight 108 is fixed to the lower surface of the top of the first rotation frame 102, but is not limited to this, and the first rotation It can also be fixed to the top surface of the top of the frame 102.

  The second rotating frame 104 is formed in an arc shape so as to cover the human head. The second rotating frame 104 is rotatably fixed to a second fixing unit 120 formed on the Y axis of the base frame 106, and can be rotated around the Y axis by a second driving unit 112 described later. . A second weight 110 having a predetermined weight is fixed to one side of the top of the second rotating frame 104. Therefore, when the second rotating frame 104 is rotated around the Y axis by the second driving unit 114, the second weight 110 fixed to the second rotating frame 104 also moves. As a result, the center of gravity of the entire frame 116 changes. In the example of the acceleration sensation presentation apparatus 100 shown in FIG. 1, the second weight 110 is fixed to the upper surface of the top of the second rotation frame 104, but the present invention is not limited to this, and the second rotation It can also be fixed to the lower surface of the top of the frame 104.

  In order to reduce the weight of the acceleration sensation presentation device 100 itself, the frame 116 is preferably formed by, for example, plastic injection molding, but is not limited thereto, and is not limited to, for example, a metal plate. It can also be formed. That is, one of the features of the present embodiment is that the wearer is presented with an acceleration sensation by moving the weight, and the frame 116 is not limited to a specific material. Similarly, the first weight 108 and the second weight 110 are not limited to weights of specific materials as long as they have a predetermined weight. The shapes of the frame 116, the first weight 108, and the second weight 110 shown in FIG. 1 are examples for explaining the present embodiment, and are not limited to these shapes. That is, the shape of the frame 116 can be appropriately changed depending on, for example, the shape of the head of the wearer, the material of the frame 116, and the like. In addition, it is naturally possible to provide components other than those shown in FIG. For example, the frame 116 may include a seat for protecting the wearer's head, another frame, or the like.

  Next, the first drive unit 112 is a drive motor that rotates the first rotating frame 102 that is rotatably fixed to the first fixing unit 118 about the X axis. As the first drive unit 112, a servo motor that controls rotation to a predetermined angle can be used in accordance with the input first drive signal. Note that in the acceleration sensation presentation apparatus 100 according to the present embodiment, the first drive unit 118 is not particularly limited as long as the first drive unit 118 can control rotation to an arbitrary angle according to the input first drive signal. It is not limited to motors. The first drive unit 112 controls rotation according to various signals such as a signal pre-programmed in game software, a signal recorded on a recording medium, a signal acquired through communication via a network, and the like. Can do. The first drive unit 112 according to the present embodiment can control the first rotating frame 102 to rotate at an arbitrary angle around the X axis in accordance with such various signals.

  The second drive unit 114 is a drive motor that rotates the second rotary frame 104 that is rotatably fixed to the second fixed unit 120 about the Y axis. As the second drive unit 114, similarly to the first drive unit 112, a servo motor that controls rotation at a predetermined angle can be used according to the input second drive signal. In addition, in the acceleration sensation presentation apparatus 100 according to the present embodiment, the second drive unit 120 may be a specific type as long as the rotation can be controlled to an arbitrary angle according to the input second drive signal. It is not limited to motors. The second drive unit 114 controls the rotation according to various signals such as a signal pre-programmed in game software, a signal recorded on a recording medium, a signal acquired through communication via a network, and the like. Can do. The second drive unit 114 according to the present embodiment can control the second rotary frame 104 to rotate at an arbitrary angle around the Y axis in accordance with such various signals.

  FIG. 2 is a conceptual diagram illustrating an example in which the first rotating frame 102 is rotated around the X axis by the first driving unit 112. Referring to FIG. 2, it can be seen that the first rotating frame 102 is rotated around the X axis provided with the pair of first fixing portions 118. FIG. 2 shows only an example in which the first rotating frame 102 is rotated around the X axis. Similarly, the second rotating frame 104 has a Y axis provided with a pair of second fixing portions 120. Can be rotated to the center. Thereby, the first weight 108 provided in the first rotating frame 102 and the second weight 110 provided in the second rotating frame 104 are moved, and the center of gravity of the acceleration sensation presentation device 100 changes. Become.

(3. Change in center of gravity of acceleration sense presentation device 100)
As described above, the first weight 108 moves when the first rotating frame 102 is rotated by the first driving unit 112, and the second weight 110 rotates by the second driving unit 114. To move. As a result, the center of gravity of the acceleration sensation presentation apparatus 100 changes. A change in the center of gravity of the acceleration sensation presentation apparatus 100 in this case will be described below.

  FIG. 3 is a conceptual diagram illustrating an example for obtaining the center of gravity of the acceleration sensation presentation apparatus 100 when the first weight 108 and the second weight 110 are moved to predetermined positions in the acceleration sensation presentation apparatus 100. In the example illustrated in FIG. 3, it is assumed that the acceleration sensation presentation apparatus 100 is worn on the head 130 of the wearer. Therefore, as shown in FIG. 3, assuming that the height direction of the wearer is the Z axis, an XYZ space centered on the center of the base frame 106 can be defined.

  The first rotating frame 102 that can rotate around the X axis is formed in an arc shape having a radius R, and a first weight 108 is fixed to the top of the first rotating frame 102. Accordingly, when the first rotating frame 102 is rotated about the X axis by the first driving unit 112, the first weight 108 rotates on the YZ plane having the radius R from the center. In the example shown in FIG. 3, the first weight 108 is at a position rotated by θy from the Z axis in the YZ plane.

  On the other hand, the second rotating frame 104 rotatable around the Y axis is formed in an arc shape with a radius R, and a second weight 110 is fixed to the top of the second rotating frame 104. Therefore, when the second rotating frame 104 is rotated about the Y axis by the second driving unit 114, the second weight 110 rotates on the XZ plane having the radius R from the center. In the example shown in FIG. 3, the second weight 110 is at a position rotated by θx from the Z axis in the XZ plane.

Here, in the example shown in FIG. 3, the center of gravity r _c of the acceleration sensation presentation apparatus 100 can be obtained as the following equation. The mass of _{m y} of the first weight 108 to rotate the mass of the second weight 110 which rotates the X-Z plane of a radius R from the center _{m x,} from the center Y-Z plane of the radius R, the first weight 108 The mass of the acceleration sensation presentation apparatus 100 excluding the second weight 110 is assumed to be F.

Here, M is the total mass of the acceleration sensation presentation apparatus 100 is calculated by _{M = F + m x + m} y. Here, if you set the mass _{m y} and the mass _{m x} of the second weight 110 of the first weight 108 in the same mass _{m (m = m x = m} y), the center of gravity _{r c} of the acceleration sensation presentation apparatus 100 following It can be expressed by a formula.

As can be seen from the above equation (2), the center of gravity r _c of the acceleration sensation presentation apparatus 100 is changed in accordance with the θx and [theta] y. That is, by arbitrarily changing the rotation angle θx of the second rotation frame 110 in the XZ plane and the rotation angle θy of the first rotation frame 108 in the YZ plane, the center of gravity r of the acceleration sensation presentation device 100 is changed. _c can be arbitrarily changed. For example, when θx = θy = 0, that is, when the first rotating frame 102 and the second rotating frame 104 are not rotated, a torque of 2 m acts in the Z-axis direction. On the other hand, as θx and θy approach 90 °, the torque in the Z direction decreases. Thus, the acceleration sensation presentation apparatus 100 according to this embodiment, by changing the θx and [theta] y, it is possible to change the center of gravity r _c of the acceleration sensation presentation apparatus 100 arbitrarily. As a result, the acceleration sensation presentation apparatus 100 according to the present embodiment can present an arbitrary acceleration sensation to the wearer by applying an arbitrary torque to the wearer's head. That is, the acceleration sensation presenting apparatus 100 according to the present embodiment can present an acceleration sensation to the user by arbitrarily changing the center of gravity of the headgear type apparatus attached to the head.

  Further, the farther the center of gravity position of the acceleration sensation presentation device 100 is from the center of the wearer's head, the greater the torque with respect to the wearer's head center, and the more effective acceleration sense can be presented to the wearer. Here, from the above equation (2), it can be seen that the larger the value of m / M, the farther the center of gravity is from the center. Therefore, it is preferable to set the masses of the first weight 108 and the second weight 110 so that the value of m / M is close to 1. In the acceleration sensation presentation apparatus 100 according to the present embodiment, it is preferable to set the value of m / M to at least 0.5 or more, but the present invention is not limited to this.

(4. Example of wearing acceleration sensation presentation device 100)
Next, an example of mounting the acceleration sensation presentation apparatus 100 configured as described above to the user will be described with reference to FIGS. FIG. 4 is a conceptual diagram illustrating one example of wearing the acceleration sensation presentation apparatus 100 according to the present embodiment.

  As shown in FIG. 4, the wearer 130 can wear the acceleration sensation presentation apparatus 100 on the head. Thereby, the acceleration sensation presentation apparatus 100 can present an acceleration sensation to the wearer 130 in synchronization with the video content displayed on the display 132, for example. That is, in synchronization with the video content displayed on the display 132, the first driving unit 112 and the second driving unit 114 receive acceleration signals for rotating the first rotating frame 102 and the second rotating frame 104. As a result, the acceleration sensation presentation device 100 can present an acceleration sensation to the wearer 130 by changing the center of gravity in synchronization with the video content of the display. That is, the wearer 130 can experience an acceleration sensation synchronized with the content of the video together with the video displayed on the display 132 and the sound output from the speaker 134, and can enjoy a virtual reality sensation. The example shown in FIG. 4 is an example for explaining the present embodiment, and is not limited to this. Unlike the display 132 and the speaker 134 shown in FIG. 4, for example, even in a game machine or a movie theater installed in a game center or amusement park, the wearer 130 senses acceleration in synchronization with the video displayed on the display. It is also possible to present.

  In addition, as a modification of the acceleration sensation presentation device 100, a head mounted display 136 and a speaker 138 may be further provided. The conceptual diagram which shows the example of mounting | wearing of the wearer 130 with the acceleration sensation presentation apparatus 100 at this time is shown in FIG.

  As shown in FIG. 5, the acceleration sensation presentation device 100 may include a head mounted display 136 on the front side of the X-axis device, and a pair of speakers 138 on the left and right sides of the Y-axis device. In this case, the head mounted display 136 is positioned in front of the wearer 130 and the pair of speakers 138 are positioned near both ears of the wearer 130. Accordingly, by supplying the video signal to the head mounted display 136, the wearer 130 can view the video displayed on the head mounted display 136. In addition, when the audio signal is supplied to the speaker 138, the wearer 130 can hear the audio output from the speaker 138. Therefore, the acceleration sensation presentation apparatus 100 can provide the wearer 130 with video, audio, and acceleration sensation. As a result, unlike a device using a conventional stage, the user can experience virtual reality even at home using the small acceleration sensation presentation device 100.

(5. System using acceleration presenting apparatus 100)
Next, an example of a system using the acceleration sensation presentation apparatus 100 configured as described above will be described. FIG. 6 is an explanatory diagram showing an example of a system using the acceleration sensation presentation apparatus 100 according to the present embodiment. FIG. 6 shows an example in which the acceleration sensation presentation apparatus 100 including the head mounted display 136 and the speaker 138 is used.

  As illustrated in FIG. 6, the acceleration sensation presentation apparatus 100 can acquire a video signal, an audio signal, an acceleration signal, and the like from an information processing apparatus, an information medium, a network, and the like via a reproduction circuit 140, for example. Here, the reproduction circuit 140 performs, for example, video, audio, acceleration signals, and the like received via the Internet 160 on the acceleration sensation presentation apparatus 100 after performing various processes such as decoding, synchronization, and amplification, for example. It is a circuit for transmitting the signal. The playback circuit 140 can also transmit, for example, a game software program, video, audio, acceleration signals, and the like recorded on a recording medium such as a DVD to the acceleration sensation presentation apparatus 100. The reproduction circuit 140 can be provided in the acceleration sensation presentation apparatus 100. The reproduction circuit 140 can also be provided in an information processing apparatus such as a DVD recorder, a hard disk recorder, or a game machine.

  For example, the reproduction circuit 140 can transmit a video signal received via an information processing device or a network to the head mounted display 136 of the acceleration sensation presentation device 100. Accordingly, the acceleration sensation presentation apparatus 100 can display the video on the head mounted display 136. In addition, the reproduction circuit 140 can transmit, for example, an audio signal received via an information processing device or a network to the speaker 138 of the acceleration sensation presentation device 100. Thereby, the acceleration sensation presentation device 100 can output the sound from the speaker 138. Furthermore, the reproduction circuit 140 transmits a first drive signal necessary for rotating the first rotation frame 102 to the first drive unit 112 based on, for example, an acceleration signal received via an information processing device or a network. The second driving signal necessary for rotating the second rotating frame 104 can be transmitted to the second driving unit 114. Thereby, the 1st drive part 112 of the acceleration sensation presentation apparatus 100 can rotate a 1st rotation frame based on a 1st drive signal, and the 2nd drive part 114 is 2nd based on a 2nd drive signal. The rotating frame can be rotated. That is, the acceleration sensation presentation apparatus 100 can provide the wearer 130 with synchronized video, audio, and acceleration sensations based on the video signal, audio signal, and acceleration signal obtained via the reproduction circuit 140. it can. Accordingly, the wearer 130 can enjoy a virtual reality sensation that allows the user to experience video, audio, and acceleration sensations simultaneously.

  For example, in the example shown in FIG. 6, the wearer 130 can experience the same feeling as the driver of the automobile 154 based on various signal information from the automobile 154 running in a remote place. Specifically, this is realized by providing the automobile 154 with an imaging device 166 that captures a landscape in front of the automobile 154. Here, the imaging device 166 includes, for example, an imaging unit that images the traveling direction of the automobile 154 and records it as a video signal, and an audio recording unit that records audio input through a speaker or the like as an audio signal. ing. Further, the imaging device 166 is provided with an acceleration sensor 162. The acceleration sensor 162 is a sensor for measuring the gravitational acceleration generated by the movement of the automobile 154. For example, a piezoresistive type, a capacitance type, a thermal detection type, or other MEMS (Micro Electro Mechanical Systems) sensor, piezoelectric An acceleration sensor such as a formula or an electrodynamic type can be used. Of course, these are examples of the acceleration sensor 162 and are not limited to specific types of sensors as long as they can measure the gravitational acceleration generated by the movement of the automobile 154. The acceleration sensor 162 is, for example, based on the sum of X, Y, and Z acceleration vectors with respect to the ground, where the front-rear direction of the automobile 154 is the X direction, the left-right direction of the automobile 154 is the Y direction, and the upward direction of the automobile is the Z direction. The acceleration vector received by the driver can be detected. The acceleration sensor 162 may be installed in the automobile 154 independently of the imaging device 166.

  As described above, the video and audio signals captured by the imaging device 166 of the automobile 154 and the acceleration signal detected by the acceleration sensor 162 are transmitted from the transmitter 158 provided in the automobile 154 to the reproduction circuit 140. In the example shown in FIG. 6, the reproduction circuit 140 can receive various signals from a remote vehicle 154 via the receiver 156, the Internet 160, and the like. Of course, the example shown in FIG. 6 is an example for explaining the present embodiment, and the reproducing circuit 140 can directly receive various signals by, for example, wired connection.

  Further, the acceleration sensation presentation apparatus 100 according to the present embodiment provides a virtual reality sensation to the wearer 130 by receiving various signals from the video reproduction device 152 such as a DVD recorder or a hard disk recorder via the reproduction circuit 140. It is also possible to do.

  In the example illustrated in FIG. 6, the reproduction circuit 140 can receive a video signal, an audio signal, an acceleration signal, and the like from the video reproduction device 152 and transmit them to the acceleration sensation presentation apparatus 100. For example, various data detected by the imaging device 166 and the acceleration sensor 162 in the automobile 154 are synchronized with the DVD, SD card, Memory Stick (registered trademark), tape as imaging data 168, audio data 170, and acceleration data 172. Or the like can be recorded on the recording medium 164. Therefore, the video reproduction device 152 can transmit the video data 168, the audio data 170, the acceleration data 172, and the like recorded on the recording medium 164 to the acceleration sensation presentation apparatus 100 via the reproduction circuit 140. In this case, the playback circuit 140 can be provided in the video playback device 152 or can be provided in the acceleration sensation presentation apparatus 100.

  Accordingly, the acceleration sensation presentation apparatus 100 displays an image on the head mounted display 136 based on various data recorded on the recording medium 164, outputs a sound from the speaker 138, and the center of gravity of the acceleration sensation presentation apparatus 100 is displayed. By changing, acceleration sense can be presented to the wearer 130. As a result, the wearer 130 can experience the scenery seen by the driver of the automobile 154, the voices heard, and the feelings experienced in a pseudo manner later, not in real time.

  Further, the acceleration sensation presentation apparatus 100 according to the present embodiment can also provide the wearer 130 with a virtual reality sensation by receiving various signals from the game device 150 via the reproduction circuit 140.

  In the example illustrated in FIG. 6, the reproduction circuit 140 can receive a video signal, an audio signal, an acceleration signal, and the like from the game device 150 and transmit them to the acceleration sensation presentation apparatus 100. For example, it is possible to incorporate in advance acceleration information in accordance with the movement of a character, a vehicle, or the like, for example, in a game software program that operates on the game device 150. Thereby, the game device 150 can transmit the video signal, the audio signal, the acceleration signal, and the like incorporated in the game software program to the acceleration sensation presentation apparatus 100 via the reproduction circuit 140. In this case, the reproduction circuit 140 can be provided in the game device 150 or can be provided in the acceleration sensation presentation device 100.

  As a result, the acceleration sensation presentation apparatus 100 displays an image on the head mounted display 136 based on various data incorporated in the software program that operates on the game device 150, outputs sound from the speaker 138, and accelerates. By changing the center of gravity of the sensation presentation device 100, the wearer 130 can be presented with an acceleration sensation. As a result, the wearer 130 can enjoy a virtual reality sensation corresponding to the movement of a game character or vehicle.

  The example of the system using the acceleration sensation presentation apparatus 100 according to the present embodiment has been described above, but the present invention is not limited to this. For example, instead of the automobile 154 shown in FIG. 6, it is naturally possible to use various riding movement means such as a roller coaster, a railway, an aircraft, and a helicopter. It can also be realized by mounting the imaging device 166 and the acceleration sensor 166 on a model device of such moving means, for example, a plastic model.

  In addition, the reproduction circuit 140 that transmits various signals to the head mounted display 136, the speaker 138, the first drive unit 112, and the second drive unit 114 after processing various signals need not necessarily be provided in the acceleration sensation presentation device 100. Absent. For example, the information processing device may be provided in an information processing device such as the video playback device 152 or the game device 150, or may be an independent information processing device including the playback circuit 140.

  In the example shown in FIG. 6, the acceleration sensation presentation apparatus 100 including the head mounted display 136 and the speaker 138 has been described, but the present invention is not limited to this. For example, the acceleration sensation presentation device 100 may not include the head mounted display 36 and the speaker 138. In this case, video signals output from the automobile 154, the game device 150, and the video playback device 152 are directly transmitted to a display such as a television, and an audio signal is transmitted to a television or a separately installed speaker. Therefore, the acceleration sensation presentation apparatus 100 can receive only the acceleration signal via the reproduction circuit 140.

(6. Processing example of acceleration information by reproduction circuit 140)
By using the acceleration sensation presentation apparatus 100 configured as described above, the wearer 130 can experience virtual reality by receiving an acceleration sensation in accordance with an image. However, in general, when experiencing virtual reality, there may be a problem of a dull sensation due to “familiarity”. That is, the wearer 130 has a tendency that it becomes difficult to experience a small acceleration after experiencing a large acceleration, or a feeling that the wearer 130 becomes dull as time passes when a constant small acceleration is continuously experienced. . Therefore, the reproduction circuit 140 according to the present embodiment applies predetermined AGC (Automatic Gain Control) to the acceleration signal received via the information processing apparatus such as the game device 140 or the video reproduction device 150 or the network. it can. Specifically, the reproduction circuit 140 decreases the acceleration provided to the wearer 130 when the received acceleration signal is large, and increases the acceleration provided to the wearer 130 when the received acceleration signal is small. Hereinafter, an example of the AGC of the acceleration signal that can be performed by the reproduction circuit 140 in the present embodiment will be described.

FIG. 7 is an explanatory diagram showing an example of the AGC of the acceleration signal by the reproduction circuit 140. Note that in FIG. 7, _{A r} is, for example, an acceleration signal in the X-axis input to the reproducing circuit 140 from an acceleration sensor 162 of FIG. 6, _{A a,} after AGC processing _{A r} by the reproduction circuit 140 It is a reproduction acceleration signal (first drive signal) transmitted to the first drive unit 112. Therefore, reproduction acceleration signals transmitted to the first driving unit 112 (first driving signal) A _a is expressed by the following equation (3). In the following description, an example in which AGC is performed on a predetermined acceleration signal _Ar regarding the X axis and the reproduction acceleration signal (first driving signal) is transmitted to the first driving unit 112 will be described. Similarly, the acceleration signal is transmitted to the second drive unit 114 as a reproduction acceleration signal (second drive signal) after AGC is performed.

Incidentally, G is the gain value to be multiplied to the A _r by the AGC processing, k denotes a discrete time. Here, the initial gain value used for AGC processing is G ₀ , the maximum gain value is G _max , and the gain increase coefficient when the reproduction acceleration signal (first drive signal) A _a is less than _a predetermined gain increase threshold A _th is α ( > 0), if the gain reduction coefficient when the reproduction acceleration signal A _a exceeds the predetermined maximum reproduction acceleration A _lim is β (> 0), the gain G is transmitted from the reproduction circuit 140 to the acceleration sensation presentation device 100. As the reproduction acceleration signal (first drive signal) _Aa changes, it is updated based on the following equations (4) to (8).

Here, G ₁ (k) is a provisional value for calculating the gain G (k) by which A _r (k) is multiplied in the AGC process, and is the previous value transmitted to the acceleration sensation presentation device 100. Based on the value of the reproduction acceleration signal (first drive signal) A _a (k−1), it is calculated by the above formulas (4) to (6). That is, when the previous reproduction acceleration signal (first drive signal) A _a (k−1) transmitted to the acceleration sensation presentation apparatus 100 is less than a predetermined gain increase threshold A _th set in advance. , G ₁ (k) is calculated by Equation (4). That is, the provisional gain value G ₁ (k) is a value increased by the gain increase coefficient α as compared with the previous gain G ₁ (k−1). That is, the reproduction acceleration signal (first driving signal) as long as A _a is less than the gain increases the threshold A _th it is provisional gain value G ₁ is so that the incremented by α with time.

On the other hand, the previous reproduction acceleration signal (first drive signal) A _a (k−1) transmitted to the acceleration sensation presentation apparatus 100 is _{equal to} or greater than a predetermined gain increase threshold A _th that is set in advance. When it is set and less than the predetermined maximum acceleration A _lim , G ₁ (k) is calculated by the equation (5). That is, the provisional gain value G ₁ (k) is the same value as the previous gain G ₁ (k−1). That is, as long as the reproduction acceleration signal (first drive signal) A _a is equal to or greater than the gain increase threshold A _{th and} less than the maximum acceleration A _lim , the provisional gain value G ₁ is always a constant value even when time elapses. .

Furthermore, when the previous reproduction acceleration signal (first drive signal) A _a (k−1) transmitted to the acceleration sensation presentation apparatus 100 is equal to or greater than a predetermined maximum acceleration A _lim set in advance, G ₁ (k) is calculated by Equation (6). That is, the provisional gain value G ₁ (k) is a value that is decreased by the gain increase coefficient β as compared with the previous gain G ₁ (k−1). That is, as long as the reproduction acceleration signal (first drive signal) A _a is equal to or greater than the maximum acceleration A _lim , the provisional gain value G ₁ is decreased by β over time.

Here, the provisional gain value G ₁ (k) calculated by the above equation (4) increases as long as the reproduction acceleration signal (first drive signal) A _a is less than the gain increase threshold A _th as described above. It will be done. As a result, the wearer 130 may be provided with an acceleration sensation that is significantly different from the actual acceleration detected by the acceleration sensor 162. Therefore, the reproduction circuit 140 according to the present embodiment can set a predetermined maximum gain value G _max set in advance as the maximum value of the gain value. Therefore, the reproduction circuit 140 calculates the gain value according to the equation (7) or (8) based on the temporary gain value G ₁ (k) calculated by the equations (4) to (6) and the maximum gain value G _max. G (k) can be calculated.

For example, when the provisional gain value G ₁ (k) calculated by the equations (4) to (6) is equal to or greater than the maximum gain value G _max , G (k) is calculated by the equation (7). That is, the gain G (k) is the same value as the maximum gain value _Gmax . On the other hand, when the provisional gain value G ₁ (k) calculated by the equations (4) to (6) is less than the maximum gain value G _max , G (k) is calculated by the equation (8). That is, the gain G (k) is the same value as the temporary gain value G ₁ (k) calculated by the equations (4) to (6).

As described above, the reproduction circuit 140 can increase the gain value G when the reproduction acceleration _Aa is small, and can decrease the gain value G when the reproduction acceleration _Aa is large. Therefore, the reproduction circuit 140, reproduction acceleration usually large reproduction acceleration signal than when A _a is small (first driving signal) transmitted to the first driving unit 112, a small play acceleration than normal when reproducing acceleration A _a large A signal (first drive signal) can be transmitted to the first drive unit 112. As a result, for example, even when a small acceleration continues in practice, the wearer 130 does not feel dullness due to habituation, and can experience a change in acceleration more effectively.

  Next, an example of AGC processing performed by the reproduction circuit 140 performed in this way will be described with reference to FIG.

7 of (a) interval, reproduction acceleration _{A a} is smaller than the value of the gain increase threshold _{A th.} Accordingly, the gain value G is calculated based on the above equations (4) and (8), and increases by the gain increase coefficient α. Then, the period (b), reproduction acceleration _{A a} is greater than the value of the gain increase threshold _{A th,} less than the maximum acceleration _{A lim.} Therefore, the gain value G is calculated based on the above formulas (5) and (8), and is fixed to a constant value. That is, in the (b) section, the gain value G does not change as the gain value at the beginning of the (b) section.

Then again, playback acceleration A _a becomes smaller than the value of the gain increase threshold A _th, the gain value G based on the equation (4) and (8), increases according to the gain increase factor α Will go. However, as described above, when the provisional gain value G calculated by the equation (4) is equal to or _larger than the predetermined maximum gain value _Gmax , the gain value G is calculated by the equation (7) as the maximum gain value _Gmax. Maintained at. That is, in the example shown in FIG. 7, the gain value G increases in accordance with the gain increase coefficient α in the section (c), but in the section (d) after reaching the maximum gain value G _max . The gain value G is constant at the maximum gain value _Gmax . Thus, by setting the predetermined maximum gain value _Gmax , it is possible to prevent the wearer 130 from being provided with excessive acceleration.

Next, in section (e) of FIG. 7, the reproduction acceleration _{A a} is equal to or greater than the value of the maximum acceleration _{A lim.} Therefore, the gain value G is calculated based on the above formulas (6) and (8), and decreases by the gain reduction coefficient β. As described above, when the reproduction acceleration _Aa is large, the gain value G is decreased, so that it is possible to prevent the body feeling from becoming dull due to the wearer 130 becoming accustomed.

Similarly, in the subsequent section (f), the reproduction acceleration A _a is equal to or greater than the gain increase threshold A _{th and} less than the maximum acceleration A _lim , so the gain G is a constant value. Further, in the section (g), reproduction acceleration A _a are the less gain increases the threshold A _th, so that the gain G is increased. Furthermore, in section (h), again, playback acceleration _{A a} is the gain increases the threshold _{A th} or more, which is less than the maximum acceleration _{A lim,} the gain G is constant.

  As described above, the reproduction circuit 140 can perform AGC processing on the acceleration signal that is actually input according to a predetermined reference. In addition, for example, the reproduction circuit 140 performs AGC processing based on a large gain value when a small acceleration signal is input, and performs AGC processing based on a small gain value when a large acceleration signal is input. Can do. As a result, the acceleration sensation presentation apparatus 100 according to the present embodiment can present an acceleration sensation to the wearer 130 based on the reproduction acceleration signal subjected to AGC processing by the reproduction circuit 140. Therefore, the wearer 130 can experience virtual reality without feeling dullness due to habituation.

  As described above, the acceleration sensation presentation device 100 according to this embodiment includes the first rotating frame 102 including the first weight 108 having a predetermined weight and the second rotating frame including the second weight 110 having a predetermined weight. 104 can be provided. In addition, the acceleration sensation presentation device 100 includes the first driving unit 112 to rotate the first rotating frame 102 around the X axis, and includes the second driving unit 114 so as to center the second rotation about the Y axis. The rotating frame 104 can be rotated. Thereby, the 1st weight 108 or / and the 2nd weight 110 will move, and the gravity center of the acceleration sensation presentation apparatus 100 will change. Therefore, the acceleration sensation presentation apparatus 100 can present an acceleration sensation to the wearer 130 by changing the center of gravity of the acceleration sensation presentation apparatus 100. Furthermore, the acceleration sensation presentation apparatus 100 determines the rotation angles of the first rotating frame 102 and the second rotating frame 104 by the first driving unit 112 and the second driving unit 114 based on the reproduction acceleration signal input from the reproduction circuit 140. It can be controlled arbitrarily. As a result, the acceleration sensation presentation apparatus 100 can present an arbitrary acceleration sensation synchronized with video or audio to the wearer 130, for example. As described above, the acceleration sensation presentation device 100 according to the present embodiment can present the user with an acceleration sensation by arbitrarily changing the center of gravity of the headgear type device worn on the head of the wearer 130. Is possible.

(7. Modifications)
The acceleration sensation presentation apparatus 100 described above is an example for explaining the above embodiment, and the shape and configuration of the acceleration sensation presentation apparatus 100 are not limited to the example shown in FIG. That is, the acceleration sensation presentation device according to the present embodiment is not limited to a specific structure as long as the shape and structure can change the center of gravity of the device itself by arbitrarily changing the position of the weight. Absent. Below, the modification of an acceleration sensation presentation apparatus is demonstrated.

(Modification 1)
FIG. 8 is an explanatory diagram showing an external configuration of the acceleration sensation presentation apparatus 200 according to the first modification. As shown in FIG. 8, the acceleration sensation presentation apparatus 200 is similar to the acceleration sensation presentation apparatus 100 described above, and includes a frame 216 including a first rotation frame 202, a second rotation frame 204, and a base frame 206, and a first drive unit. 212 and the second drive unit 214. Further, the base frame 206 is formed with a pair of first fixing portions 218 on the same axis so as to fix the first rotating frame 202 rotatably about the X axis. In addition, the base frame 206 is formed with a pair of second fixing portions 220 on the same axis so as to fix the second rotating frame 204 rotatably about the Y axis.

  Here, unlike the first embodiment, the first rotating frame 202 and the second rotating frame 204 of Modification 1 are provided with a first sliding hole 240 and a second sliding hole 242 in the longitudinal direction of each frame, respectively. It has been. As shown in FIG. 8, the weight 244 is inserted into the first sliding hole 240 and the second sliding hole 242 at a position where the first rotating frame 202 and the second rotating frame 204 intersect. That is, the first rotating frame 202 and the second rotating frame 204 are connected by the weight 244.

  The first driving unit 212 and the second driving unit 214 are configured so that the first rotating frame 202 and the second rotating frame are based on the first driving signal and the second driving signal received from the reproduction circuit 140, as in the above-described embodiment. Rotate 204.

  In the acceleration sensation presentation apparatus 200 according to the first modification, for example, when only the first rotating frame 202 is rotated by the first driving unit 212, the weight 244 is moved along the second sliding hole 242 of the second rotating frame 204. It will slide. On the other hand, for example, when only the second rotating frame 204 is rotated by the second driving unit 214, the weight 244 slides along the first sliding hole 240 of the first rotating frame 202. As described above, the acceleration sensation presentation apparatus 200 according to the first modification causes the weight 244 to be moved to an arbitrary position by sliding one weight 244 along the first sliding hole 240 and / or the second sliding hole 242. Can be moved to. In addition, the acceleration sensation presentation apparatus 200 rotates one of the first rotating frame 202 and the second rotating frame 204 so that one weight 244 can be moved to an arbitrary position in addition to the XZ plane and the YZ plane. Can be moved to. Therefore, unlike the acceleration sensation presentation apparatus 100 according to the above embodiment, the acceleration sensation presentation apparatus 200 according to the first modification can arbitrarily change the center of gravity of the apparatus itself with only one weight 244.

  Here, since the acceleration sensation presentation apparatus 200 includes only one weight 244, when the mass of the weight 244 is m, the center of gravity rc of the acceleration sensation presentation apparatus 200 is expressed from the same viewpoint as the above embodiment. It is calculated by the following formula (9).

  Therefore, the acceleration sensation presentation apparatus 200 can simplify the apparatus and the method of controlling the reproduction acceleration signal by the reproduction circuit 140, as compared with the acceleration sensation presentation apparatus 100 described in the above embodiment. In the acceleration sensation presentation apparatus 200 according to the first modification, the same system and processing by the playback circuit 140 as those in the acceleration sensation presentation apparatus 100 according to the above embodiment can be applied. Omitted.

(Modification 2)
The acceleration sensation presentation devices 100 and 200 described above are characterized in that by rotating an arcuate frame, the position of a weight provided in the frame is changed, and the center of gravity of the device itself is changed. However, the frame including the weight is not limited to the arc-shaped frame. For example, the shape of the frame can be a long plate. FIG. 9 is an explanatory diagram showing an external configuration of the acceleration sensation presentation apparatus 300 according to the second modification.

  As shown in FIG. 9, the acceleration sensation presentation apparatus 300 includes a frame 316 including a first slide frame 302, a second slide frame 304, a base frame 306, and a slide auxiliary frame 330, a first drive unit 312 and a second drive. Part 314.

  Here, as shown in FIG. 9, the first slide frame 302 and the second slide frame 304 of Modification 2 may be formed in a horizontal long plate shape. Similarly to the first modification, a first sliding hole 340 and a second sliding hole 342 are provided in the longitudinal direction of each frame. Furthermore, as shown in FIG. 9, a weight 344 is inserted into the first sliding hole 340 and the second sliding hole 342 at a position where the first slide frame 302 and the second slide frame 304 intersect. That is, the first slide frame 302 and the second slide frame 304 are connected by the weight 344.

  Furthermore, the auxiliary slide frame 330 included in the acceleration sensation presentation device 300 according to the second modification includes a third slide hole 346 for sliding the first slide frame 302 in the Y-axis direction, and a second slide frame 304 in the X-axis direction. And a fourth sliding hole 348 for sliding. Accordingly, the first drive unit 312 can slide the first slide frame 302 along the third slide hole 346 based on the first drive signal received from the reproduction circuit 140. Similarly, the second drive unit 314 can slide the second slide frame 304 along the fourth slide hole 348 based on the second drive signal received from the reproduction circuit 140.

  In the acceleration sensation presentation device 300 according to the second modification, for example, when only the first slide frame 302 is slid along the third slide hole 346 by the first driving unit 312, the weight 344 is the second slide frame 304. It will slide along the two sliding holes 342. On the other hand, for example, when only the second slide frame 304 is slid along the fourth slide hole 348 by the second drive unit 314, the weight 344 slides along the first slide hole 340 of the first slide frame 302. Will move. As described above, the acceleration sensation presentation apparatus 300 according to the second modified example slides a horizontal long plate-shaped frame to move one weight 344 along the first sliding hole 340 and / or the second sliding hole 342. By sliding, the weight 344 can be moved to an arbitrary position. Further, the acceleration sensation presentation apparatus 300 can move one weight 344 to an arbitrary position on the XY plane by sliding both the first slide frame 302 and the second slide frame 304.

  Thus, the acceleration sensation presentation device according to the present embodiment is not limited to a specific structure or a specific frame shape. That is, the acceleration sensation presentation device includes at least one weight in a frame of an arbitrary shape, and can change a center of gravity of the device itself by moving the position of the weight. It is not limited to the shape, dimensions, structure, and the like.

  The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field to which the present invention pertains can come up with various changes or modifications within the scope of the technical idea described in the claims. Of course, it is understood that these also belong to the technical scope of the present invention.

  For example, the drawings showing the external configuration of the acceleration sensation presentation apparatus referred to in the above embodiment are examples for explaining the above embodiment, and the present invention is not limited thereto. For example, the frame and the weight constituting the acceleration sensation presentation device may have shapes, materials, dimensions, and structures other than the drawings and the above description. In consideration of the simplification of the calculation control of the center of gravity, a member having the same mass as each drive unit can be provided at a position facing each drive unit.

  In addition, the center-of-gravity calculation formula and the AGC control method described in the above embodiment are merely examples for explaining the embodiment, and the present invention is not limited thereto. For example, the X-axis in the above embodiment is not limited to the wearer's front-rear direction, and may be in any direction. The same applies to the Y axis. Furthermore, for the AGC control method, for example, it is naturally possible to set a plurality of gain increase threshold values, gain increase coefficients, etc., and update the gain value in stages.

It is explanatory drawing which shows the external appearance structure of the acceleration sensation presentation apparatus 100 which concerns on this embodiment. It is explanatory drawing which shows an example of rotation of the frame of the acceleration sensation presentation apparatus 100 which concerns on this embodiment. It is explanatory drawing which shows an example of the calculation concept of the gravity center of the acceleration sensation presentation apparatus 100 which concerns on this embodiment. It is a conceptual diagram explaining one of the example of mounting | wearing of the acceleration sensation presentation apparatus 100 which concerns on this embodiment. It is a conceptual diagram explaining one of the mounting examples in the modification of the acceleration sensation presentation apparatus 100 which concerns on this embodiment. It is explanatory drawing which shows an example of the system using the acceleration sensation presentation apparatus 100 which concerns on this embodiment. In the acceleration sensation presentation apparatus according to the present embodiment, it is an explanatory diagram showing an example of AGC processing of the acceleration signal by the reproduction circuit 140. FIG. It is explanatory drawing which shows the external appearance structure of the acceleration sensation presentation apparatus 200 of the modification 1. It is explanatory drawing which shows the external appearance structure of the acceleration sensation presentation apparatus 300 of the modification 2.

Explanation of symbols

100, 200, 300 Acceleration sensory device 102, 202 First rotating frame 104, 204 Second rotating frame 106, 206, 306 Base frame 108 First weight 110 Second weight 112, 212, 312 First driving unit 114, 214, 314 Second drive part 116, 216, 316 Frame 118, 218 First fixing part 120, 220 Second fixing part 130 Wearer 136 Head mounted display 138 Speaker 240, 340 First sliding hole 242, 342 Second sliding Hole 244, 344 Weight 346 Third sliding hole 348 Fourth sliding hole

Claims (17)

A frame to be worn on the user's head;
At least one weight provided in the frame;
A drive unit for moving the weight on the frame;
An acceleration sensation presentation device comprising: The frame is
A base frame that surrounds and closely contacts at least a portion of the user's head;
A substantially arc-shaped first rotating frame fixed to the base frame so as to be rotatable about a first direction which is an arbitrary radial direction of the base frame;
A substantially arc-shaped second rotating frame fixed to the base frame so as to be rotatable about a second direction orthogonal to the first direction;
Including
The drive unit is
A first drive unit that rotates the first rotating frame about the first direction;
A second drive unit that rotates the second rotating frame about the second direction;
The acceleration sensation presentation apparatus according to claim 1, comprising: The weight is
A first weight fixed to the top of the substantially arc-shaped first rotating frame;
A second weight fixed to the top of the substantially arc-shaped second rotating frame;
Including
The first driving unit moves the first weight by rotating the first rotating frame,
The acceleration sensation presentation apparatus according to claim 2, wherein the second drive unit moves the second weight by rotating the second rotation frame. The first rotating frame is provided with a first sliding hole having a long hole along an arc,
The second rotating frame is provided with a long second sliding hole along an arc,
The weight is inserted into the first sliding hole and the second sliding hole at a position where the first rotating frame and the second rotating frame intersect,
The first driving unit rotates the first rotating frame to move the weight by sliding the weight along the second sliding hole,
3. The acceleration sensation presentation device according to claim 2, wherein the second driving unit moves the weight by rotating the second rotating frame and sliding the weight along the first sliding hole. . The frame is
A base frame that surrounds and closely contacts at least a portion of the user's head;
A substantially hollow quadrangular slide auxiliary frame fixed above the base frame;
A first slide frame having a long plate shape provided in the slide auxiliary frame so as to be slidable in a second direction orthogonal to the first direction, the first direction being an arbitrary radial direction of the base frame as a longitudinal direction;
A second slide frame having a long plate shape, which is provided in the slide auxiliary frame so as to be slidable in the first direction with the second direction as a longitudinal direction;
Including
The drive unit is
A first drive unit that slides the first slide frame in the second direction;
A second drive unit for sliding the second slide frame in the first direction;
The acceleration sensation presentation apparatus according to claim 1, comprising: The first slide frame is provided with a long first slide hole whose longitudinal direction is the first direction,
The second slide frame is provided with a long second slide hole whose longitudinal direction is the second direction,
The weight is inserted into the first sliding hole and the second sliding hole at a position where the first slide frame and the second slide frame intersect,
The first driving unit moves the weight by sliding the first slide frame and sliding the weight along the second sliding hole,
6. The acceleration sensation presentation device according to claim 5, wherein the second drive unit moves the weight by sliding the second slide frame and sliding the weight along the first sliding hole. . Based on predetermined acceleration information received from an external device or network, further comprising a reproduction circuit that transmits a reproduction acceleration signal to the drive unit,
The acceleration sensation presentation apparatus according to claim 1, wherein the drive unit controls movement of the weight based on the reproduction acceleration signal. Further equipped with a head-mounted display for displaying a predetermined image,
The acceleration sensation presentation apparatus according to claim 7, wherein the reproduction circuit further transmits a predetermined video signal received from the external device or the network to the head mounted display. A speaker for outputting predetermined sound;
The acceleration sensation presentation apparatus according to claim 8, wherein the reproduction circuit further transmits a predetermined audio signal received from the external device or the network to the speaker.   The acceleration sensation presentation apparatus according to claim 1, wherein a mass m of the weight is ½ or more of a mass M of the acceleration sensation presentation apparatus. An imaging unit comprising: an imaging unit that captures a predetermined video; an audio recording unit that records predetermined audio in synchronization with the video; and an acceleration sensor that detects predetermined acceleration data in synchronization with the video and the audio Equipment,
A frame to be mounted on a user's head; at least one or more weights provided on the frame; a drive unit that moves the weights on the frame; a head-mounted display that displays a predetermined image; An acceleration sensation presentation device comprising: a speaker that outputs sound;
The video signal captured by the imaging unit, the audio signal recorded by the audio recording unit, and the acceleration signal detected by the acceleration sensor are synchronized, and the head mounted display, the speaker, and the A reproduction circuit for transmitting to the drive unit;
Acceleration sensation presentation system.   12. The acceleration sensation presentation system according to claim 11, wherein the reproduction circuit multiplies an acceleration signal detected by the acceleration sensor by a predetermined gain and transmits the multiplication signal as a reproduction acceleration signal to the acceleration sensation presentation apparatus.   The acceleration sensation presentation system according to claim 12, wherein the reproduction circuit appropriately changes the gain according to a magnitude of the reproduction acceleration signal. The imaging device is provided in a moving means for riding, or a model moving device of the moving means,
The acceleration sensation presentation apparatus according to claim 11, wherein the video signal, the audio signal, and the acceleration signal are transmitted to the reproduction circuit via a network. A game device for playing a predetermined game program;
A frame to be mounted on a user's head; at least one or more weights provided on the frame; a drive unit that moves the weights on the frame; a head-mounted display that displays a predetermined image; An acceleration sensation presentation device comprising: a speaker that outputs sound;
A reproduction circuit that synchronizes a video signal, an audio signal, and an acceleration signal incorporated in the game program, and transmits them to the head mounted display, the speaker, and the driving unit, respectively.
Acceleration sensation presentation system. A frame to be worn on the user's head;
At least one weight provided in the frame;
A drive unit for moving the weight on the frame;
A head-mounted display for displaying a predetermined image;
A speaker for outputting a predetermined sound;
For an acceleration sensation presentation device comprising
A video signal to be displayed on the head mounted display, an audio signal to be output from the speaker, and an acceleration signal for controlling the movement of the weight by the driving unit are respectively synchronized with the head mounted display and the speaker. And an acceleration information processing apparatus comprising a reproduction circuit for transmitting to the drive unit.   An acceleration sensation presentation method for presenting an acceleration sensation to the user by moving at least one weight provided on a frame attached to the user's head on the frame by a drive unit.

Images