JPH083838B2 - Moving object detection simulation device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detection device, and more particularly to detecting a collision position when a moving object such as water or a ball collides with a collided member provided on the front surface of a screen. The present invention relates to a moving object detection simulation device.

Various simulations have been conventionally known for the purpose of teaching and training, etc., as simulations in which the actual process can be acquired by performing a simulation experiment through a model of some kind.

However, for example, a simulation system for performing digestion training by simulation has not been known so far,
When constructing such a simulation system, the laser beam is used as fire extinguishing water and projected on a screen, and an image of the fire is displayed on the screen.
It is conceivable to detect the projection position of the laser beam on the display image, determine it by a calculation function process, and switch the display image to an image in which the flame is enlarged or an image in which the flame is reduced.

However, since the laser beam does not have a real feeling as fire extinguishing water, it is conceivable to actually use water instead of the laser beam of the above fire extinguisher training simulation system. In such a simulation system,
It is important to detect where on the screen the water or other object has hit.

Conventional technology In a simulation system that actually conducts fire extinguishing training using water, when a transparent tempered glass placed on the front surface of the screen is exposed to water, it is used as a detection device to detect the impact position of the transparent front glass. It is conceivable that a photosensor matrix as shown in FIG. 6 is provided so that the location where water hits is detected and the detection signal is sent to a computer.

The photosensor matrix shown in FIG. 6 divides the detection area on the front surface of the screen into a plurality of blocks, detects the passage of water for each block, and determines the relative position between the detected water position and the flame image. To change the importance of the matrix. Also, the optical sensor matrix is as shown in FIG.
The optical path for the light detection is configured to have three layers in the projection direction of water, and the detection signal is sent to the computer only when water is detected in the order 1, 2, 3 It is said that. In this way, it is conceivable that only the water discharged from the outside to the screen is detected, and the water reflected from the screen (actually the tempered glass) is not detected.

However, in the above-mentioned photosensor matrix, the speed of water discharged to the screen is actually much higher than the scanning speed of detection of each layer sequentially by the three-layer photosensor, and the speed of the front surface of the screen is much higher. The droplets reflected from the tempered glass were detected by the optical sensor, and it was not possible to accurately detect where the water hit.

Moreover, the water droplets adhered to the optical sensor, and in particular, the water droplets adhered to the light receiving portion that constitutes the optical sensor together with the light emitting portion blocked the light from the light emitting portion, and it was not possible to correctly detect where the water hit the screen. .

Means for Solving the Problems The present invention has been made in view of the above conventional drawbacks,
Provided on the front of the screen in correspondence with the screen,
While transmitting the invisible light, a collided member for colliding a moving object having a property of blocking the invisible light, and the invisible light is incident on the entire surface of the collided member,
Illuminating means for emitting the invisible light to illuminate the entire front surface of the screen, and a filter arranged behind or in front of the screen and transmitting only light in the wavelength region of the invisible light to the image of the screen. An image pickup means for picking up images through, and a video signal from the image pickup means as an input signal,
When this input signal is divided into a plurality of sections in association with the front surface of the screen, a detection means including a plurality of video sensors for detecting the presence or absence of an image in each of the plurality of sections previously assigned And a discriminating means for discriminating the image of the moving object, which is shielded from the invisible light rays when colliding with the colliding member, on the screen, and discriminating the position of the image from the output signal of the detecting means. A moving object detection simulation device characterized by being provided.

Action When a moving object such as water or a ball hits the screen directly or hits a member such as tempered glass in front of the screen, the moving object blocks invisible light rays, so that an image is formed on the screen surface. This image is picked up by the image pickup means, converted into a video signal, and then supplied to the detection means. The detection means is configured to include a plurality of video sensors in total, which detect the presence or absence of an image in each of the pre-allocated sections when the front surface of the screen is divided into a plurality of sections in a matrix. .

Therefore, the discriminating unit discriminates which section contains the image of the moving object from the output signal of the detecting unit.

Embodiment FIG. 1 is a block system diagram of an embodiment of the device of the present invention, and FIG. 2 is an operation explanatory diagram of the main part thereof. In both figures, the same components are designated by the same reference numerals. In FIGS. 1 and 2, a transparent collided member (hereinafter referred to as tempered glass) 11 is arranged on the front surface of the 120-type screen 10, and 12
Reflection mirrors 12 are provided on the rear side of the 0-type screen 10, and an infrared filter that transmits only infrared rays on the front surface.
A television camera 14 provided with 13 is provided. Further, in front of the tempered glass 11, a translucent frame having a square shape is arranged corresponding to the outer peripheral side edge of the 120 type screen 10, and along the frame, for example, 1500 infrared rays in total are emitted. The diode 15 has its light-emitting portion as a 120-inch screen 10.
Are arranged toward the front of the. As a result, infrared rays, which are invisible rays emitted from the infrared light emitting diode 15, illuminate the entire front surface of the 120-inch screen 10 through the tempered glass 11.

As shown by 20 in FIG. 2, the infrared rays further pass through the 120-type screen 10, are reflected by the reflection mirror 12, and then enter the television camera 14 through the infrared filter 13 having a characteristic of transmitting infrared rays. Therefore, the television camera 14 captures only the image of the wavelength region of invisible light rays on the back surface of the 120-inch screen 10.

As an example, as shown in FIG.
Water 22 discharged to the mold screen 10 is tempered glass
When it hits 11, the water 22 blocks the infrared rays that illuminate the front surface of the 120-inch screen 10, so that the water on the back surface of the 120-inch screen 10 is at the position where the water hits, as shown in FIG. There are 23 shadows in the water. Therefore, in this case, the TV camera 14
As a result, only the shadow 23 of the water can be imaged and is not affected by other visible light rays.

The video signals obtained by picking up images by the television camera 14 are supplied in parallel to the six sets of video sensors 16 _{1 to} 16 ₆ shown in FIG. Here, each of the six sets of video sensors 16 _{1 to} 16 ₆ has a front surface of the 120-inch screen 10 as shown in FIG.
As shown in (C) respectively, when divided into a matrix of 24 (four) in the vertical direction and six in the horizontal direction, each of which has a total size of 24 (points) 31 to 54, four pre-allocated It is configured to detect the presence or absence of an image in a section. At this time, each set of video sensors 16 _{1 to} 16 ₆ includes four video sensors (not shown) in the vertical direction. For example, video sensor 16 ₁ is assigned compartments 31, 37, 43, 49, video sensor 16 ₂ is assigned compartments 32, 38, 44, 50 and video sensor 16 1
₃ are assigned to compartments 33, 39, 45, 51, as well as video sensors
16 ₄ , 16 ₅ and 16 ₆ are assigned to each of the four sections in the fourth, fifth and sixth columns from the left in FIGS. 4 (A) to (C).

The video sensors 16 _{1 to} 16 ₆ detect the presence or absence of an image in the assigned section from the signal portion of the section corresponding to the assigned section in the input video signal, and output a signal corresponding thereto as shown in FIG. Is supplied to the computer 18 which constitutes the calculation determining means. The interface 17 is connected to the infrared light emitting diode 16 via a power line.

The computer 18 is, for example, a 16-bit personal computer and is connected to the operation monitor 19.
The position coordinates of the image on the back surface of the 120-type screen 10 are calculated and calculated based on the input signal from the interface 17, and the position coordinates are the detection area composed of one or more set sections among the sections 31 to 54 described above. If the image is present in all the sections in the detection area in a unit time, a detection signal is generated.

The above-mentioned detection area is changed by the computer 18, for example, the number of sections constituting the detection area is changed over time, and the position thereof is also changed. As an example, the detection area at a certain time is composed of two sections 52 and 53 as indicated by 25 in FIG. 4 (A), and the detection area is indicated by 26 in FIG. 4 (B) for the next certain period. 4 sections 45,46,51,5 in different positions from area 25
2 and the next predetermined period is gradually changed so as to be composed of nine sections 39 to 41, 45 to 47, 51 to 53 as indicated by 27 in FIG. 4 (C). In the case of FIGS. 4 (A) to 4 (C), the detection area is gradually widened to 25, 26, 27 with the passage of time, whereas as described above, it is applied to all the sections constituting the detection area. Since the detection signal is generated only when the image is even once in the unit time, the probability of detection decreases with the passage of time.

As described above, according to the present embodiment, even if a moving object that should form an image, such as the water 22 in FIG. 2, is reflected by the tempered glass 11, the reflected object (such as splashes in the case of FIG. 2). The impact position of the tempered glass 11 (substantially the impact position of the 120-inch screen 10) can be accurately detected without being affected by.

Next, an application example of the present invention will be described with reference to FIG.
FIG. 5 shows a block system diagram of a simulation device for training of initial fire extinguishing having the embodiment device shown in FIG. In the figure, the same components as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. In FIG. 5, reference numeral 56 is a host computer composed of a 16-bit personal computer (hereinafter referred to as "personal computer"), which is connected to an operation monitor 57 and an input / output device (not shown), and a loop network controller 58 and Parallel I / O
Each is connected to the interface (PIO) 59. The host computer 56 is a loop network controller 58
Signal to node 60 ₁ via. Nodes 60 _{1 to} 60 ₆
And the loop network controller 58 transmits the above signals only in one direction, and each node once receives all the input signals and retransmits them to the next node or the loop network controller 58, forming a so-called local area network (LAN). are doing.

5 PCs 61 ₁ to 61 _5, for example 8-bit personal computer, connected via a bidirectional bus to the node 60 _through 603 _5, together configured to allow two-way communication with the host computer 56 5 video disc playback devices 62 _{1 to} 62 ₅
To be connected separately via a bidirectional bus, which enables interactive (interactive) control of a video disc player 62 ₁ to 62 _5.

Four video disk reproducing apparatus 62 _{1-62 4} of the same first image signal (which is the image of each stage from the initial stage to the final stage when the simulation result is failed,
A personal computer that starts playing back the recorded video discs separately and at regular time intervals (for example, 5 to 10 seconds) in sequence, with the recorded video discs relating to images in which a fire progresses in sequence.
The remaining one video disc reproducing device 62 ₅ is controlled by 61 _{1 to} 6 ₁₅ and is different from the first video signal in that the second video signal relating to the final burn image when the simulation result is successful. Play the recorded video disc. It should be noted that, for example, four types of burn images are prepared according to the time of extinguishing, and the burn images with low burn levels are successively reproduced for a fixed period.

The video / audio switch 63 is a video disc playback device 62 _{1 to} 62 ₅
Of the reproduced video signal and the reproduced audio signal input in parallel, the reproduced video signal and the reproduced audio signal from one video disk reproducing device, and the next switched and displayed video signal (this is known in advance). Is a switching device for selectively outputting a reproduction video signal from another one of the video disc reproducing devices which is reproducing the signal, and its switching control is performed based on the switching signal supplied from the host computer 56 via the PIO 59. . Therefore, the video / audio switching unit 63 selectively outputs the reproduced video signals from two of the five video disk reproducing devices in parallel and separately supplies them to the time base collectors (TBC) 64 and 65, respectively.

A synchronization signal is supplied to the TBCs 64 and 65 from a synchronization signal generator 66, and reproduced video signals phase-synchronized with the synchronization signals are supplied to a video switch 67. The video switching device 67 selectively outputs only one of the two reproduced video signals from the TBCs 64 and 65 based on the switching signal supplied from the host computer 56 via the PIO 59, and outputs it to the 120 type video projector 69 through the video distributor 68. Supply. As a result,
120 video signals from a single video disc player
Displayed by the mold screen 10. In addition, the video switch 67
Even when the playback video signal of the next stage from another video disk playback device is switched by, the playback signals of both playback video signals are made to have a phase synchronization relationship with each other by TBC64 and 65. Image distortion does not occur when switching.

On the other hand, at the same time, the video / audio switch 63
The reproduced audio signal from the video disk reproducing device that reproduces the reproduced video signal supplied to the 0-type video projector 69 is selectively output, and the audio distributor 70 and the audio amplifier 71 are output.
Are supplied to the speaker 72 through which the sound is produced.

On the other hand, the 120-inch screen 10 since the image is displayed fire site by the video signal reproduced from one of the video disc player 62 ₁ to 62 _4, the trainee is shown in Figure 2 Use fire extinguisher 21 to spray water 22 at the image. Then, as described above, the computer 18 sets the most effective detection area for extinguishing the fire, and arithmetically calculates the detection signal indicating whether or not water has hit this detection area (for example, 25 in FIG. 4 (A)). Te, which transfers the node 60 ₆ and the loop network controller 58 respectively through it to the host computer 56.

Based on this input detection signal and the time required from the simulation start time (specifically, the time address signal reproduced from the video disc), the host computer 56 will monitor all partitions in the detection area within a unit time. When it hits, it is determined that the fire has been extinguished, and the output of the reproduced video signal at a stage where the extent of the fire spread is light is switched and output sequentially, and finally the reproduced video signal of the burn is switched and output. On the other hand, when the host computer 56 determines that the fire is not detected, it continues to display the playback video signal in which the fire spreads, and when the fire is not detected within the predetermined time, finally the telop of unsuccessful fire is displayed. Display on 120-inch screen 10. Incidentally, the computer 18 corresponds to the display of the image in which the fire spreads, and the detection area corresponds to the fire area as shown by 25, 26 and 27 in FIGS. 4 (A), (B) and (C). Gradually increase the fire extinguishing difficulty.

In this way, by displaying a fire image on the 120-inch screen 10, detecting the impact position of the water discharged from the fire extinguisher to the screen 10, switching the image of fire spread, setting the situation close to the actual fire Allows you to perform a simulation to gain basic knowledge, procedures and fire extinguishing techniques for initial fire extinguishing.

Note that the present invention is not limited to the above-described embodiments, and for example, in the hole-in-one game of golf, the ball throwing game of baseball, the throwing, the shooting game, etc. It can be widely applied. In addition, the number of sections dividing the screen is 24
However, the number is not limited to the above, and it is needless to say that the number can be set to an arbitrary number by changing the number of video sensors.

Further, the television camera 14 may capture an image of the front surface of the screen 10 by invisible light rays.

EFFECTS OF THE INVENTION As described above, according to the moving object detection simulation apparatus of the present invention, a moving object such as water or a ball having a property of blocking invisible light rays is collided with a member to be collided provided on the front surface of the screen. Then, an image of the moving object on the screen is formed on an image pickup means for picking up an image through a filter that transmits only light in the wavelength region of the invisible light ray, and then a video signal from the image pickup means is received as an input signal and the input When a signal is divided into a plurality of sections corresponding to the front surface of the screen, the presence or absence of an image in each of the sections pre-allocated among the plurality of sections is detected. Since the position of the image is detected, it is possible to detect the entire surface of the screen at one time, which makes it possible to quickly and accurately determine the position of the image of the moving object on the screen. Both can be applied as a fire extinguishing training device when using water as a moving object, and can be applied as a pitching training device, a tennis training device, etc. when using a ball as a moving object. You can

Further, since the constituent members of the present invention use members that are easily available, there is an advantage that the moving object detection simulation device can be manufactured at a low cost with a simple structure.

[Brief description of drawings]

FIG. 1 is a block system diagram showing an embodiment of the device of the present invention,
FIG. 2 is an operation explanatory view of the main part of the block system shown in FIG.
FIG. 3 is a diagram showing an example of the image in FIG. 2, FIG. 4 is a diagram for explaining an example of a divided partition arrangement and a detection region on the screen in the present invention, and FIG. 5 is an application example of the device of the present invention. FIG. 6 is a block diagram showing the structure of a conventional apparatus. 10 ... 120 type screen, 11 ... Collised member (tempered glass), 12 ... Reflecting mirror, 13 ... Infrared filter, 14 ... TV camera, 15 ... Infrared light emitting diode, 16 _{1 to} 16 ₆ ... Video sensor, 18 ... Calculation discrimination Means (computer), 22 ...
Water, 23 ... Shadow of water, 25-27 ... Detection area, 31-54 ... Compartment.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kuniaki Komai 3-12 Moriya-cho, Kanagawa-ku, Yokohama, Kanagawa Prefecture, Japan Victor Company of Japan (56) Reference JP-A-63-184876 (JP, A) JP JP-A-62-188952 (JP, A) JP-A-62-189951 (JP, A) JP-A-60-260983 (JP, A) ICAO BULLETIN, 36 [1] (1981-1), P. 25-27

Claims (1)

[Claims] 1. A collided member which is provided in front of a screen in correspondence with the screen and which collides a moving object having a property of transmitting the invisible light and blocking the invisible light, and the collided member of the collided member. Illumination means for irradiating the entire front surface of the screen by injecting the invisible light rays onto the entire surface and irradiating the invisible light rays, and an image of the screen which is arranged in front of or behind the screen. An image pickup means for picking up an image through a filter that transmits only light in the wavelength region of a light beam, and receiving a video signal from the image pickup means as an input signal, and dividing the input signal into a plurality of sections corresponding to the front surface of the screen. A plurality of video sensors for detecting the presence / absence of an image in each of the pre-assigned sections, and a collision means for colliding with the member to be collided. When the image is moved, an image of the moving object that is shielded from the invisible light is copied onto the screen, and the position of the image is judged from the output signal of the detecting means. Object detection simulation device.