JP2677537B2 - Parachute descent education device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parachute descent education device that allows a person to experience parachute descent in a simulated manner.

[0002]

2. Description of the Related Art Conventionally, a device for simulating a parachute descent has not been developed yet.

As an example of related prior art, Japanese Patent Laid-Open No. Hei 3
-1247676, which is proposed in a skydiving training simulator that combines a vertical wind tunnel device and a large screen installed on the ground.

As another prior art, Japanese Patent Laid-Open No. 7-12
There is No. 9073, and a paraglider flight simulator has been proposed in which a large room having an octagonal cylinder in which a video screen is embedded over the entire surface is blown with a predetermined wind direction and volume to experience paraglider flight.

[0005]

Each of the above simulators uses an actual parachute and tries to reproduce natural conditions by using a large blower. Since it actually floats up the room space, the scale of the device is small. It is extremely large and there is a risk of falling during flight.

Further, although the atmosphere during flight can be experienced, the image progresses irrespective of the intention of the flight person, so that the sense of reality is poor. Moreover, since a large screen is used, a large installation area is required, and the device is expensive.

An object of the present invention is to provide a parachute descent education device that requires a small installation area and can experience parachute descent with a rich sense of realism.

[0008]

SUMMARY OF THE INVENTION The present invention provides a training room having a harness for fixing a trainee, a support line for suspending the harness, a control line operated by the trainee, and a control amount sensor for detecting a control amount. A head mount display that is mountable on the head of the trainee and has a head position sensor that detects the position of the head of the trainee and an image display device that displays an image; A parachute descent education device, comprising: a control unit that controls an image displayed on the image display device based on an output from the head position sensor. According to the present invention,
Since the trainee is equipped with a head-mounted display to control the parachute, it is easy to display realistic images such as stereoscopic images, and the conventional large screen is not required. Therefore, the entire installation area can be significantly reduced. Further, with respect to the image displayed on the image display device mounted on the head mounted display, the progress of the screen, the scenery, etc. are controlled based on the outputs from the steering amount sensor and the head position sensor. For example, an image in which the right control rope is pulled to rotate right is displayed, and an image in which the left control rope is pulled to rotate left is displayed. Furthermore, when the head is rotated even during a certain flight, the image also rotates together with the image. In this way, the screen changes according to the amount of training by the trainee, so that a realistic simulation can be realized.

Further, the present invention is characterized in that a plurality of training rooms and head-mounted displays are provided so that a plurality of trainees can be trained at the same time. According to the present invention, by providing a plurality of training rooms and head-mounted displays and simultaneously training a plurality of trainees, it is possible to display the images of the remaining trainees on the head-mounted display of a trainee. Therefore, it is possible to realize a simulation when performing parachute descent in a group.

The present invention also relates to a steering recording device for recording the passage of a steering amount over time, and a steering for reproducing an image viewed from a desired viewpoint based on the steering amount recorded in the steering recording device. And a playback device. According to the present invention, the elapsed time of the maneuvering amount is recorded at the time of parachute descent training, and the image viewed from a desired viewpoint is reproduced based on the recorded maneuvering amount, so that the trainee can review. It will be possible. Furthermore, by reproducing the images and the situation of control on a large screen installed in, for example, a classroom, it is possible to train a large number of trainees even if the number of trainees is small.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic view showing an embodiment of the present invention. FIG. 1 (a) shows pilot training and FIG. 1 (b) shows replay training. In FIG. 1A, a trainee P enters a plurality of training rooms 10 (the figure shows 10 people) and steers the control line suspended by a harness 11 which is a fixture. Training room 10
In addition, an instructor desk 30 is provided, and the instructor T sets simulation conditions and makes a call with each trainee P. The simulation record of each trainee P is recorded in a storage medium such as a CD-ROM.

In FIG. 1B, the control console 51 takes out a simulated recording from the storage medium and reproduces an image of parachute descent based on the simulation, and the projector 54 projects it on the screen 55, for example.

FIG. 2 is a block diagram showing the training room 10.
In the training room 10, a mechanism imitating the control part of an actual parachute is installed, and the harness 1 for fixing the trainee P
1 and a pair of left and right support cords 13 for suspending the harness 11.
A pair of left and right control lines 14 operated by the trainee P, a control amount sensor 16 for detecting the displacement of the control line 14 and detecting the control amount of the trainee P, and the like are provided.

The training room 10 is large enough for one adult to enter, and the blower 15 is installed on the front, rear, left and right walls and floor.
Many are installed to reproduce the wind received when parachuting. The blower 15 is supported so as to be freely angularly displaced, and the wind direction and the air volume are controlled by a computer unit described later.

The support cord 13 supports the weight of the trainee P and is driven by a device that applies vibration under the control of the computer section, and reproduces the impact when the parachute is opened, for example. The trainee P is a helmet 2 having a head mounted display (HMD) incorporated therein.
Wear 0 on the head.

FIG. 3 shows a head mounted display 21.
It is a perspective view which shows an example. The head mounted display 21 has a U-shaped support frame 28 that contacts both side surfaces of the head and the forehead portion, like goggles (windproof glasses),
It is composed of a support band 27 which is connected to both ends of the support frame 28 and elastically presses the occipital region. Two display panels 24 such as liquid crystal displays are attached to the front surface of the support frame 28 so as to be close to the naked eye. A head position sensor 23 including a magnetic sensor or the like is attached to the lower portion of the display panel 24. A focus adjustment knob 25 for adjusting the position of the display panel 24 is located at a position corresponding to the temple of the support frame 28. Further, a pair of left and right speakers 26 are attached to positions corresponding to both ears of the support frame 28, and an arm-shaped microphone 29 is attached in proximity to the mouth of the trainee P.

FIG. 4 shows the head mounted display 21.
It is explanatory drawing which shows the principle of. 2 to both eyes of head HD
An optical system 24a such as a lens is provided at a position of 3 cm, and a display panel 24 is arranged so as to be closer to the optical system 24a. The trainee P observes the right and left separate images at the same time, and the optical system 24a is set so as to focus on a virtual image VI at a far distance. In this way, the trainee P can observe a stereoscopic image wherever the head is directed.

FIG. 5 is an explanatory view showing the principle of the magnetic sensor. The magnetic generating coil G forms a constant magnetic field by a drive circuit of the controller. The magnetic sensor MS is
Similarly, it is composed of a coil and detects the direction and magnitude of the magnetic field. When the signal from the magnetic sensor MS is input to the detection circuit, the three-dimensional position and orientation of the magnetic sensor MS are relatively detected with the magnetic field generating coil G as a reference. Although six signals of the three-dimensional position and orientation can be detected, the number of detection signals may be reduced if necessary. Such a magnetic sensor MS can be used as the head position sensor 23, and the position and direction of the head can be accurately measured without contact.

FIG. 6 is a block diagram showing an electrical configuration of an embodiment of the present invention. The parachute descent education device includes a plurality of training rooms 10 as described above and an instructor desk 30.
The replay device 50 and the like.

The head position sensor provided on the helmet 20 of the trainee P outputs a position signal indicating a three-dimensional position and posture. Further, the steering amount sensors connected to the left and right steering ropes output steering amount signals for two channels on the left and right. The position signal and the manipulated variable signal are input to the control computer 34.

Further, an impact signal that gives an impact to the harness 11 and a blower control signal that controls the air volume and the wind direction of the multiple blowers 15 are output from the control computer 34.

Further, the video signal supplied to the head mounted display 21 of the helmet 20 is output from the video computer 35. Further, the speaker 26 and the microphone 29 of the head mounted display 21 of FIG.
Via the communication cable to the instructor desk 30 handset 32
It is connected to each trainer P and the instructor T to make a remote call.

The instructor desk 30 has a computer 31 for system control.
Is installed and outputs a command for setting a simulation condition to the control computer 34, and takes in a calculation result from the control computer 34 and a video signal from the video computer 35.

The computer section 33 comprises a control computer 34, a video computer 35, an information storage computer 36 and the like. The control computer 34 calculates the three-dimensional spatial position of each trainee P based on various parameters such as simulation conditions including initial conditions and meteorological conditions, descent start timing, maneuvering amount, and head position signals, etc. Based on the above, the visual field direction for each trainee is calculated. Such calculation is executed in real time as time passes, and the harness 11 is impacted or the blowing condition is changed for each fixed condition.

The position and the visual field direction of each trainee P are taken in by the image calculator 35, and a pseudo image is generated for each trainee P and supplied to the head mounted display 21 and the instructor's desk 30. At the instructor's desk 30, it is possible to switch and display images for each trainee P, or to display images from any viewpoint.

Various sensor signals such as a head position signal and a manipulated variable signal taken into the control computer 34 are supplied to the instructor's desk 30 and the information storage computer 36. The information storage computer 36 records various sensor signals that change with the passage of time and stores them in a storage medium such as a CD-ROM as necessary.

The replay device 50 comprises a control console 51 including a control computer 52 and a video computer 53, a projector 54, a screen 55 and the like. CD-R
When a storage medium such as an OM is loaded on the control console 51, various sensor signals being simulated are read and a simulated image is reproduced. Such an image is projected on the screen 55 by the projector 54.

In this way, a plurality of trainees can be trained at the same time, and by reproducing an image viewed from a desired viewpoint based on various sensor signals recorded,
It enables trainees to review and group education.

FIG. 7 is an explanatory view showing an actual state of parachute descent. When it falls from the aircraft W, the parachute is delivered, and the parachute begins to open due to the wind. When the parachute is fully opened, the trainee receives an impact and the falling speed decreases, and the direction of travel can be controlled by manipulating the left and right control lines. When approaching the ground, the landing posture is maintained and landing is completed.

FIG. 8 shows an example of a simulated image. FIG. 8 (a) is an HMD (head mounted display) image when viewed from the left, and FIG. 8 (b) is an HM when viewed from the front.
D image, FIG. 8C shows an HMD image when viewed from the right. In FIG. 8A, a scenery image from a certain altitude is displayed, and in FIGS. 8B and 8C, an image of another trainee P is displayed together with the scenery. The video computer 35 stores all such 360-degree panoramic image data, and cuts out the display area according to the position and orientation of the head detected by the head position sensor. In addition, the images of other trainees are displayed as a moving image by being superimposed on the cut out display image.

FIG. 9 shows an example of an image displayed on the replay device 50, which corresponds to an image viewed from a sky far above the training altitude. Pseudo images of the ground, roads, buildings, grounds, power lines, etc. are displayed on the left side of the screen, and it can be seen that the trainees P1 to P3 are descending toward the target point of landing.
In the upper right part of the screen, the time change of the XY coordinates regarding the specific trainee P1 is displayed as a trajectory in the coordinate system with the ground on the XY plane and the altitude on the Z axis. On the lower right side of the screen, the horizontal axis is time, and the vertical axis is left / right operation force (corresponding to the amount of control)
The graph is taken.

FIG. 10 shows another example of an image displayed on the replay device 50, which corresponds to an image when viewed horizontally from a constant altitude. Pseudo images of clouds, mountains, ground, roads, buildings, etc. are displayed on the left side of the screen, and it can be seen that the trainees P1 to P3 are descending. On the right side of the screen, the time change of the Z coordinate for a specific trainee P1 is displayed as a graph in the coordinate system with the ground on the XY plane and the altitude on the Z axis.

From such an image, it is possible to easily determine the descent position during parachute descent training and whether or not the maneuver was properly performed.

[0034]

As described in detail above, according to the present invention, since the trainee wears the head mounted display to perform parachute operation, it is easy to display a realistic image such as a stereoscopic image. A large screen is unnecessary. Therefore, the entire installation area can be significantly reduced.

Further, since the progress of the screen, the scenery, etc. are controlled based on the outputs from the manipulated variable sensor and the head position sensor, a realistic simulation can be realized.

Further, by simulating a plurality of trainees at the same time, parachute descent training in a group becomes possible.

In addition, by recording the elapsed time of the maneuvering amount during the parachute descent training and reproducing an image viewed from a desired viewpoint based on the recorded maneuvering amount,
It will be possible for the trainees to review and moreover, it will be possible to easily implement multi-person education.

[Brief description of the drawings]

1A and 1B are schematic diagrams showing an embodiment of the present invention, in which FIG. 1A shows a state of driving education and FIG. 1B shows a state of replay education.

FIG. 2 is a configuration diagram showing a training room 10.

FIG. 3 is a perspective view showing an example of a head mounted display 21.

FIG. 4 is an explanatory diagram showing the principle of the head mounted display 21.

FIG. 5 is an explanatory diagram showing the principle of a magnetic sensor.

FIG. 6 is a block diagram showing an electrical configuration of an embodiment of the present invention.

FIG. 7 is an explanatory diagram showing an actual state of parachute descent.

8A and 8B show an example of a simulated image, FIG. 8A is an HMD (head mounted display) image when viewed from the left, FIG. 8B is an HMD image when viewed from the front,
FIG. 8C shows an HMD image when viewed from the right.

9 is an example of a display image on the replay device 50. FIG.

FIG. 10 is another example of a display image on the replay device 50.

[Explanation of symbols]

 10 Training Room 11 Harness 13 Support Line 14 Control Line 15 Blower 16 Controlled Volume Sensor 20 Helmet 21 Head Mount Display 23 Head Position Sensor 24 Display Panel 26 Speaker 27 Support Band 28 Support Frame 29 Microphone 30 Teacher's Desk 32 Handset 33 Computer Section 51 Control console 54 Projector 55 Screen

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-3-126476 (JP, A) JP-A-7-129073 (JP, A)

Claims (3)

(57) [Claims] 1. A training room equipped with a harness for fixing a trainee, a support line for suspending the harness, a control line operated by the trainee, and a control amount sensor for detecting a control amount, and a training room on the head of the trainee. A head mount display that is wearable and has a head position sensor that detects the position of the trainee's head and an image display device that displays an image, and an output from the manipulating amount sensor and the head position sensor. A parachute descent education device comprising: a control means for controlling an image displayed on the image display device. 2. The parachute descent education device according to claim 1, wherein a plurality of training rooms and a head mounted display are provided, and a plurality of trainees can be trained at the same time. 3. A steering recording device for recording the passage of a steering amount over time, and a steering reproducing device for reproducing an image viewed from a desired viewpoint based on the steering amount recorded in the steering recording device. The parachute descent education device according to claim 1 or 2, further comprising: