JP2020076943A - Virtual earthquake experience system - Google Patents

Abstract

To provide a virtual earthquake experience system capable of obtaining objective data on the phenomena and sensations experienced by a subject of a virtual earthquake.SOLUTION: The virtual earthquake experience system includes: a video generator that generates images of a virtual earthquake; a seismic generator 20 that generates vibrations when the virtual earthquake occurs; and a sensation measuring unit that measures the phenomenon and sensations generated in the human body of a subject when the virtual earthquake occurs. The video generator includes a screen 11 installed in virtual space 200 or a head-mounted display worn by the subject 12. The seismic generator includes a chair 21 on which the subject sits, and a vibration generator 22 that vibrates the chair horizontally and vertically. The sensation measuring unit is a measuring unit which is equipped with a biometric sensor that quantitatively measures the phenomenon and sensation generated in the human body, and which is worn on the body of the subject.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a virtual seismic sensation system that allows a user to experience a simulated event that occurs when an earthquake occurs, and to virtually experience the phenomena and sensations that occur in the human body at that time, as well as being able to quantitatively measure them. Is.

People who are inside buildings, assuming the occurrence of an earthquake and a fire in order to minimize the damage to people and property when an earthquake occurs in a building, condominium, etc. It is common practice for people to conduct evacuation drills and firefighting training.
However, even if it is said that an earthquake has occurred, it is often impossible to visually, auditorily, and sensuously feel that evacuation drills and fire extinguishing drills are often required, and realistic damage is assumed. However, there was a problem that the effectiveness of evacuation drills was not so high.

Therefore, you can visually, audibly, and visually experience a virtual earthquake by generating video and audio when an earthquake occurs in a building, condominium, or other building, or by adding vibration to the human body. Devices or systems have been proposed.
As a system that allows such a virtual earthquake to be experienced visually, audibly, and sensibly, the virtual earthquake image data and acoustic data are transmitted to a goggle-type image and sound generation device attached to the subject and the subject is seated. A system has been developed in which a chair is vibrated vertically and horizontally by a vibration generator (see Patent Document 1).

According to the above system, people can assume realistic damage, and even if the effectiveness of evacuation drills increases, the phenomena and sensations acquired by people who experienced a virtual earthquake are It's just sensory accumulated in the mind, and cannot be applied to improve the ability to respond when an earthquake actually occurs.
Therefore, the image of the virtual earthquake is displayed on the image display device, the sound is generated by the sound generation device, and the chair on which the subject is seated is swung by the swing generation device. A system has been developed which can be operated in a virtual space by operating (see Patent Document 2).

JP, 2017-198867, A JP 2002-108196 A

  In both systems of Patent Documents 1 and 2, it is possible to experience a simulated event that occurs when an earthquake occurs, and at that time, the subject virtually experiences the phenomenon and sensation that occurs in his or her body. Even if it is possible, it is extremely difficult to apply it to people who do not experience it, because the phenomena and sensations that they experience are only sensory accumulated in the mind of the subject.

  Moreover, since the phenomena and sensations that the subject experienced by himself are only accumulated sensuously in the mind of the subject, it is not possible to obtain objective data that applies to those who do not experience the earthquake. It was not possible to establish a response method at the time of occurrence, nor could it help design the structure and interior of a building based on objective data.

The present invention has been made in view of such conventional problems, and makes it possible to apply to people who do not experience the phenomenon and sensation experienced by the subject of the virtual earthquake, and It is an object of the present invention to provide a virtual seismic sensation system that can obtain objective data on a phenomenon and sensation that a person has experienced and can help design a structure and interior of a building based on the data.

In order to achieve the above object, the virtual seismic sensation system of the present invention includes an image generation device that generates an image when a virtual earthquake occurs, a vibration generation device that generates a vibration when a virtual earthquake occurs, and a vibration generation device when a virtual earthquake occurs. It is characterized by comprising a sensation measuring device for measuring a phenomenon and a sensation occurring in a human body of a subject.

  It is preferable that the image generation device is composed of a screen installed in a virtual space or a head mounted display worn on the subject.

  It is preferable that the vibration generator includes a chair on which a subject sits and a vibration generator that vibrates the chair in the vertical and horizontal directions.

  The bodily sensation measuring device is characterized by being a measuring device equipped with a biometric sensor that is mounted on the body of a subject and quantitatively measures a phenomenon and a sensation occurring in a human body.

  The bodily sensation measuring device may be a perspiration measuring device capable of measuring the amount of perspiration of a subject by connecting a perspiration sensor to the tip and fixing it to the palm of the subject.

  The sensation measuring device may be an electroencephalogram measuring device equipped with an electroencephalogram sensor and capable of measuring an electroencephalogram of a subject by mounting a headset on the subject's head.

The virtual earthquake sensation system of the present invention can be applied to people who do not experience the phenomenon and sensation experienced by a subject of a virtual earthquake.
It is also possible to obtain objective data on the phenomena and sensations experienced by the subject and to help design the structure and interior of the building based on the data.

It is a schematic block diagram of the virtual earthquake experience system of this invention. It is a front view of a screen. It is a perspective view of a head mounted display. It is a perspective view of an example of a vibration generator. It is explanatory drawing of the other Example of a vibration generator. It is a perspective view of a perspiration measuring device. It is a perspective view of a brain wave measuring device. It is explanatory drawing of the state which comprised the virtual earthquake experience system of this invention in virtual space. It is a front view showing an image projected on a screen when a virtual earthquake occurs. (A) of the time change of the vibration data generated in the virtual earthquake sensation system of the present invention is an example, and (B) is a diagram showing another example. It is a figure which shows the Example of the time change of the feeling data which can be collected in the virtual earthquake feeling system of this invention. It is explanatory drawing of the state which processed and analyzed the data collected by the virtual earthquake sensation system of this invention in a computer. It is a perspective view of a cerebral blood flow measuring device.

  A preferred embodiment of the virtual earthquake sensation system of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the virtual earthquake sensation system 100 of the present invention includes an image generation device 10, a vibration generation device 20, and a sensation measurement device 30.

  The image generation device 10 is composed of a screen 11 as shown in FIG. 2 or a head mounted display (HMD) 12 as shown in FIG.

The screen 11 is used by being installed on an appropriate wall surface in an appropriate space in a building, and as shown in FIG. 2, almost the entire area of the screen 11 can appropriately display the entire image of the office. There is.
Then, in the lower left corner of the screen 11, a vibration waveform when a virtual earthquake occurs can be displayed.

  When the screen 11 and the head mount display (HMD) 12 are used in combination, it is assumed that the subject P is seated in a predetermined chair in the office and wears the head mount display 12 in the upper right corner of the screen 11. When this is done, an image visually recognized in front of it can be displayed.

The head-mounted display 12 is a goggle type display device capable of displaying a virtual reality (VR) image, and as shown in FIG. 3, the projection unit 12a is on the front face and the viewing unit 12b is on the side face. Has been placed.
When the subject P mounts the head-mounted display 12 on his / her head, an image of virtual reality is displayed on the projection unit 12a, and a predetermined sound is generated from the viewing unit 12b.

  As shown in FIG. 4, the vibration generator 20 includes a chair 21 and a vibration generator 22.

  The chair 21 is formed in a curved surface shape that fits the body as much as possible over the seat portion, the backrest portion, and the armrest portion so that the body can be held securely when the subject P is seated, and the body is separated by the belt. I try not to.

The vibration generating device 22 is configured such that the supporting leg of the chair 21 can be firmly fixed to the upper surface thereof, and the vibrating member disposed inside the vibrating device 22 vibrates vertically and horizontally with appropriate frequency and amplitude. ing.
Therefore, by activating the vibration generating device 22 and driving the vibrating member, the upper surface of the vibration generating device 22 vibrates at an appropriate frequency and amplitude in the vertical and horizontal directions, and correspondingly, the chair 21 also vibrates in the predetermined vertical and horizontal directions. It vibrates in number and amplitude.

  Instead of the vibration generator 20, as shown in FIG. 5, a screen 51 is arranged around a virtual space 400 that is appropriately defined, and the entire virtual space 400 is placed on a large vibration table 52, You may make it comprise the vibration generator 50 which vibrates the large oscillating table 52 with a frequency and amplitude suitably in a vertical direction and a horizontal direction.

  According to the vibration generator 50, the test subject P is erected or seated at an appropriate position on the floor surface in the virtual space 400, and the large vibration table 52 is operated, so that the entire virtual space 400 is vertically and horizontally oriented. It can be vibrated in the vertical direction, allowing you to experience a more realistic virtual earthquake.

  The sensation measuring device 30 is attached to the body of the subject P seated in the chair 21 to quantitatively measure the phenomena and sensations occurring in the human body, and uses a measuring device equipped with various biological sensors. You can

  6 shows a perspiration measuring device 31, which has a perspiration sensor 31a connected to the tip of a cord 31b fixed to the palm of the subject P, whereby the amount of perspiration of the subject P when a virtual earthquake occurs. Can be measured.

  FIG. 7 shows an electroencephalogram measuring device 32, in which the headset is equipped with an electroencephalogram sensor 32a, and by attaching the headset to the head of the subject P, the subject P when a virtual earthquake occurs The brain waves of can be measured.

  FIG. 13 shows a cerebral blood flow measurement device 33, which includes an irradiation device 33a equipped with a light emitting diode that emits near infrared light (about 800 nm) and a photodiode that detects reflected light transmitted through the brain. The detection device 33b provided is embedded in the headset. By mounting the headset on the forehead of the subject P, the cerebral blood flow of the subject P when a virtual earthquake occurs can be measured.

  It should be noted that the sensation measuring device 30 is not limited to the above, and a biometric measuring device that is equipped with a sensor that measures an electrocardiogram, a heart rate, a respiration rate, and the like and that can be easily worn by the subject P is used. May be.

  The virtual earthquake sensation system 100 of the present invention is configured as described above, and is set and used as follows.

First, as shown in FIG. 8, a screen 11 as an image generation device 10 is installed at the center of a wall surface 201 in an appropriately defined virtual space 200.
Further, a vibration generator 20 including a chair 21 and a vibration generator 22 is arranged at an appropriate position on the floor 202 in front of the wall 201.

Next, as shown in FIG. 8, the subject P is seated on the chair 21 and the belt is fastened to prevent the subject P from moving away from the chair 21 when a virtual earthquake occurs and injuring.
The head mount display 12 is attached to the head of the subject P, and the perspiration sensor 31a connected to the tip of the perspiration measuring device 31 is fixed to the palm.

Next, the virtual seismic experience system 100 is operated, and as shown in FIG. 9, the screen 11 is projected with an image of the inside of the office at the time of the virtual earthquake, and the head mounted display 12 is displayed with an image visually recognized in front of the chair 21. Then, the sound generated due to the virtual earthquake is generated.
At the same time, the vibration generating device 22 is operated to vibrate the vibrating member in the vertical and horizontal directions at appropriate frequencies and amplitudes, and accordingly, the chair 21 also vibrates in the vertical and horizontal directions at the predetermined frequency and amplitude.

As a result, the subject P develops a sensation as if he or she is experiencing an actual earthquake, and the perspiration rate, heart rate, and respiration rate increase, and the EEG exhibits a unique shape, which is not normally observed. Physical phenomena and sensations also become visible.
Then, these physical phenomena and sensations can be quantitatively measured by the sensation measuring device 30 over time, and can be acquired and collected as sensation data during a virtual earthquake.

Here, as shown in FIG. 10A, if the vibration data that a certain structure A in a certain building vibrates is transmitted to the vibration generation device 22, the chair 21 is caused to vibrate in a vibration mode corresponding thereto. You can
Further, as shown in FIG. 10B, if the vibration data that a structure B in a building vibrates is transmitted to the vibration generation device 22, the chair 21 can be vibrated in a vibration mode corresponding to the vibration data. it can.

  Then, as shown in FIG. 11, the sensation data corresponding to the vibration mode of the structure A and the vibration mode of the structure B can be acquired.

As described above, the sensation data quantitatively measured over time by the virtual earthquake experience of the subject P can be input to the computer 300, recorded, and collected, as shown in FIG.
By appropriately processing the collected sensation data, it is possible to obtain objective data that can be applied to people who do not experience virtual earthquakes, and to provide people who do not experience earthquakes with countermeasures when an earthquake occurs. You will be able to give advice.

  In addition, by collecting video data, acoustic data, vibration data, and sensation data from a large number of subjects at the time of a virtual earthquake and comprehensively analyzing them, the structure and interior of a building can be constructed based on these objective data. It can also help design.

  In the above-described embodiment, the vibration generating device 20 is constituted by the chair 21 and the vibration generating device 22, but the vibration generation that vibrates the entire virtual space 400 defined appropriately in the vertical and horizontal directions and the vertical direction. Of course, device 50 may be used.

100 Virtual Seismic Experience System 10 Image Generation Device 11 Screen 12 Head Mounted Display 20 Vibration Generator 21 Chair 22 Vibration Generation Device 30 Vibration Sensitivity Measurement Device 31 Sweat Measurement Device 32 Brain Wave Measurement Device 33 Brain Blood Flow Measurement Device 200 Virtual Space 201 Wall Surface 202 Floor Face P Subject

Claims (6)

  An image generation device that generates an image when a virtual earthquake occurs, a vibration generation device that generates a vibration when a virtual earthquake occurs, and a sensation measurement device that measures phenomena and sensations that occur in the human body of a subject when a virtual earthquake occurs, A virtual seismic experience system characterized by being configured from.   The virtual earthquake sensation system according to claim 1, wherein the video display device is configured by a screen installed in a virtual space or a head mounted display worn by a subject.   3. The virtual seismic sensation system according to claim 1, wherein the vibration generation device includes a chair on which a subject is seated and a vibration generation device that vibrates the chair in the vertical and horizontal directions.   4. The sensation measuring device according to claim 1, wherein the sensation measuring device is a measuring device mounted on a body of a subject and equipped with a biosensor for quantitatively measuring phenomena and sensations occurring in a human body. Virtual earthquake experience system described.   The sensation measuring device is a perspiration measuring device capable of measuring the amount of perspiration of a subject by connecting a perspiration sensor to the tip and fixing it to the palm of the subject. Virtual earthquake experience system.   The sensation measuring device is an electroencephalogram measuring device that is equipped with an electroencephalogram sensor and is capable of measuring an electroencephalogram of a subject by mounting a headset on the head of the subject. Virtual earthquake experience system.

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