JP2006071276A - Fire game device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire game device capable of easily and certainly detecting an impact position of a light beam when a player shoots the light beam toward a predetermined target projected on a screen using a shooting means. <P>SOLUTION: A video image for shooting having the predetermined target is projected from a projector 28 toward the screen 10. The player shoots the light beam 200 toward the target on the screen 10 using a laser gun 14. A video camera 30 photographs the screen 10 completely regardless of the screen scan of the projector 28, and outputs the video signal to coordinate calculating means 36, 38 and 40. The coordinate calculating means counts clock pulses outputted from a pulse generating section 40 in a period between the output of a vertical synchronizing signal of the video signal from the video camera 30 and the output of a beam point signal included in this video signal. This count value is divided by a predetermined clock pulse number, and the X-coordinate and Y-coordinate of the beam point on the screen are calculated and outputted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a shooting game apparatus, and more particularly to a shooting game apparatus for shooting a target using a light beam.

  Conventionally, a shooting game apparatus using a light gun or the like is well known. Examples of such a shooting game apparatus include Japanese Patent Laid-Open No. 50-72515, Japanese Patent Laid-Open No. 60-179079, and Japanese Patent Laid-Open No. 4-51987. No. 1 is known.

  Each of these conventional techniques is configured to fire a light gun toward a screen on which a target is displayed, and to photograph the landing position of the light gun using a video camera. However, each of these conventional techniques has a problem that the landing position of the light gun cannot be detected accurately and easily from the video signal of the video camera.

  For example, in the prior art disclosed in Japanese Patent Laid-Open No. 50-72515, the landing position of the light gun is projected on a predetermined target plate via a half mirror, and this is photographed with a video camera and displayed on a storage display cathode ray tube. Is. Then, the screen of the accumulation display cathode ray tube and the target drawn on the target plate are superimposed and displayed via a half mirror, and the bullet hole indicating the landing position is image-synthesized with the target. However, this conventional technology does not detect the position of the light beam by simply photographing the landing beam point of the light gun using a video camera.

  Further, in the prior art disclosed in Japanese Patent Laid-Open No. 60-179079, a shooting video image in which a predetermined target appears on a screen is projected using a projector, and this is shot by a player using a light gun. It is. Then, the landing position is detected by photographing a screen using a video camera, and hit / miss is determined.

  However, this prior art must be configured so that the image display operation of the image creation CRT provided in the projector and the image capturing operation of the screen-capturing television camera are performed in complete synchronization. Then, for each horizontal scan of the camera, the video signal output from the camera and the target position display signal read from the ROM in synchronization with the horizontal scan are compared using a comparator, and the beam point of the light gun is displayed in the target display area. Judgment is made whether or not there is, and hit is detected when hit. As described above, this prior art is based on the premise that the camera and the CRT are completely synchronized in order to detect the landing position of the light gun, and there is a problem that the setting is extremely troublesome. .

  In particular, this prior art must compare the output signal of the video camera with the landing position display signal read from the ROM storing the video information for each horizontal scan of the camera, and perform hit discrimination. There is a problem that a circuit required for such comparison and determination becomes complicated and expensive.

Japanese Patent Application Laid-Open No. 4-51987 describes that a CCD camera is installed so that the entire screen can be projected, and the landing position of the light gun is detected from the signal output from the CCD camera. However, there is no description at all about how to detect the landing position.
JP 50-72515 A JP 60-179079 A Japanese Patent Laid-Open No. 4-51987

  The present invention has been made in view of such a conventional problem, and an object of the present invention is to generate a light beam when a player emits a light beam using a shooting means toward a predetermined target projected on a screen. The beam landing position can be detected easily and reliably. In particular, there is no need to synchronize between the projector that projects the shooting video image on the screen and the imaging means that captures the screen, and the output from the imaging means Another object of the present invention is to provide a shooting game apparatus capable of accurately and easily detecting the landing position of a light beam from a video signal to be played.

In order to achieve the above object, the present invention provides:
A projector that projects a shooting video image of a given target on the screen;
Shooting means for launching a light beam that is distinguishable from the video image toward a target of the projector;
Photographing means for photographing the screen;
Coordinate calculation means for calculating the beam point (X, Y) coordinates of the light beam on the screen from the video signal photographed by the photographing means;
Collating the calculated beam point coordinates with the display position of the target, hit determination means for determining the hit of the light beam,
Based on the beam point coordinates or the hit determination signal, the image synthesizing calculation means for displaying a landing image or a target bullet image on the projector,
Including
The coordinate calculation means includes
A pulse generator for outputting clock pulses;
A count unit that counts the clock pulse from when the vertical synchronization signal of the video signal is output until the beam point signal is output;
A calculation unit that divides the count value by a predetermined reference pulse number and calculates and outputs the X coordinate and Y coordinate of the beam point on the screen;
It is characterized by including.

  Here, it is preferable to provide an optical filter that selectively transmits the light beam in the light incident optical path of the imaging means.

  In the shooting game apparatus of the present invention, a shooting video image in which a predetermined target appears is projected from the projector toward the screen.

  The player emits a light beam using a shooting means toward the target of the projector. At this time, the light beam landing position is projected on the screen as a light beam point.

  The photographing means photographs the screen regardless of the screen scanning of the projector and outputs the video signal to the coordinate calculation means.

  The coordinate calculation means counts the clock pulses output from the pulse generator from when the vertical synchronizing signal of the video signal from the imaging means is output until the beam point signal included in the video signal is output. . Then, the count value is divided by a predetermined reference pulse number, and the X coordinate and Y coordinate of the beam point on the screen are calculated and output.

  Such calculation of the X coordinate and the Y coordinate is performed, for example, by setting a count number corresponding to one horizontal scanning time of photographing as a reference pulse number and dividing the count value by this reference pulse number. The quotient at this time is output as the value of the Y coordinate, and the remainder is output as the value of the X coordinate.

  When the beam point coordinates of the light beam on the screen are calculated by the coordinate calculation means, the hit determination means collates the calculated beam point coordinates with the coordinate position of the target, and determines the hit of the light beam. Then, based on the hit determination signal or the beam point coordinates, the projected image or landing image of the target is displayed on the screen by the projector.

  As described above, according to the present invention, there is no need to synchronize the projector between the projector that projects the video image on the screen and the photographing means for photographing the screen as in the prior art, and the beam point of the light beam. The landing position can be accurately calculated as (X, Y) coordinates on the screen.

  Therefore, a complicated circuit configuration that completely synchronizes the projector and the photographing means is unnecessary, and the detection of the landing position is detected as (X, Y) coordinates, and then the hit determination is performed. Can be simple and inexpensive.

  In particular, since there is no failure of the game apparatus due to poor synchronization between the projector and the photographing means, the entire apparatus is easily maintained, and is suitable as a shooting game apparatus that is installed in a game field for a long time.

  Next, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a preferred embodiment of a shooting game apparatus according to the present invention. The shooting game apparatus of the embodiment includes a game apparatus main body 20 incorporating a screen 10 erected by a stand 12, a TV projector for projecting a shooting video image in which a predetermined target appears toward the screen 10, and a player 100. And a laser gun 14 that emits a laser beam 200 toward the screen 10 by the above operation.

  The player 100 is configured to aim at a target appearing on the screen 10 one after another and to emit a laser beam and enjoy a shooting game.

  At this time, the apparatus of the embodiment detects the (X, Y) coordinates of the beam point P representing the landing position of the laser beam 200, and the (X, Y) coordinates of the detected beam point P and the target display position. And hit discrimination against the target of the laser beam 200 is performed. When the laser beam hits, a target bullet image is displayed on the screen 10, and when the laser beam 200 comes off, a laser beam landing image is simply displayed.

  In the embodiment, the laser gun 14 is connected to the game apparatus main body 20 with a cord 21 and is configured to transmit / receive power for generating leather and various signals to / from the game apparatus main body 20.

  FIG. 2 shows a block circuit diagram of the shooting game apparatus of the embodiment.

  In the shooting game apparatus of the embodiment, in order to project a predetermined shooting video image on the screen 10, a game arithmetic circuit 22, a ROM 24 storing a predetermined game program, an image composition circuit 26, and a TV projector 28 are provided. And have.

  The game calculation circuit 22 performs a calculation for synthesizing a predetermined game screen based on a game program stored in the ROM 24 and a signal input from a hit discrimination circuit 46 described later, and the calculation signal is used as an image synthesis circuit 26. Output to. The image synthesis circuit 26 synthesizes a shooting video image in which a predetermined target appears in accordance with the calculation signal, and projects the synthesized video image on the screen 10 via the TV projector 28.

  As shown in FIG. 1, the player 100 targets the laser gun 14 toward a predetermined target while watching a video image projected on the screen 10, and emits a laser beam 200. As a result, the beam point P of the laser beam 200 is projected on the screen 10. In the apparatus of the embodiment, the upper left corner of the screen 10 is the origin (0, 0), the horizontal direction is the X axis, the vertical direction is the Y axis, and the landing position of this beam point P is detected as the (X, Y) coordinates. It is supposed to be.

  That is, in order to detect the beam point P of the laser beam 200, the shooting game apparatus of the embodiment is configured to shoot the screen 10 using the video camera 30. Here, the shooting range of the video camera 30 is set to substantially match the video image projection range of the TV projector 28. Further, the video camera 30 of the embodiment is provided with a filter 32 and a diaphragm 34. The filter 32 is formed so as to selectively pass the laser beam 200 and light in the vicinity of the laser beam 200. As a result, the video camera 30 can remove all the noise included in the video image or the like via the filter 32 and selectively photograph only the beam point P. The diaphragm 34 narrows the light input through the filter 32, cuts a noise portion having a small power, and further narrows the beam point P to an appropriate size for input to the video camera 30.

  FIG. 3 shows a timing chart of the video signal 300 output from the video camera 30 and the video signal 310 output after waveform shaping by the waveform shaping circuit 36. As shown in the figure, the video signal 300 output from the video camera 30 includes vertical synchronization signals B1, B2,... And when the beam point P is projected on the screen 10, A beam point signal P is included. The waveform shaping circuit 36 shapes the video signal 300 into a predetermined pulse waveform and outputs it to the counter circuit 38.

  The high frequency clock pulse 320 shown in FIG. 3 is input to the counter circuit 38 from the reference clock generation circuit 40.

  Each time the vertical synchronizing signals B1, B2, B3,... Are output from the waveform shaping circuit 36, the counter circuit 38 clears the count value. The counter circuit 38 starts counting the pulse signal 320 at the falling edge of each vertical synchronization signal B1, and stops counting when the beam point P included in the video signal 310 is output. Such an operation is performed for each screen field (each screen of 1/60 seconds) in synchronization with the vertical synchronization signals B1, B2, B3... And the count value is output to the arithmetic circuit 42 for each screen field. To do.

  Each time the count value is output from the counter circuit 38 in this way, the arithmetic circuit 42 divides this count value by a predetermined reference pulse number and calculates and outputs the X coordinate and Y coordinate of the beam point P on the screen. . Specifically, the number of pulses corresponding to the time required for the video camera 30 to scan the image in the horizontal direction (X-axis direction) (the time for one horizontal scan) is set as the reference pulse number, and the counter circuit 38 is set. Is divided by this reference pulse number. The quotient obtained at this time represents the value of the Y coordinate of the beam point P, and the remainder represents the value of the X coordinate of the beam point P. In this way, the arithmetic circuit 42 calculates and outputs the (X, Y) coordinates of the beam point from the count value of the counter circuit 38.

  In order to alternately write and read the (X, Y) coordinates of the beam point P calculated and output in this way, the apparatus of the embodiment includes a control unit 44 and a pair of read enable signal output circuits 50A and 50B. A pair of output holding circuits 52A and 52B are provided.

The control unit 44 alternately turns the read enable signals E _A and E _B to H level in synchronization with the rising edges of the vertical synchronization signals B1, B2, B3,. And switch to L level.

It is output vertical synchronizing signals B _1, for example, when the read enable signal E _B is set to L level, (X, Y) of the beam point P output from the arithmetic circuit 42 coordinates the output holding circuit 52B Written. In this case, since the read enable signal E _A that is input to the other output holding circuit 52A is set to H level, (X, Y) coordinates of the beam point the previously latched to the output circuit 52A, the game calculation The output is sent to the circuit 22.

Further, when the next vertical synchronizing signal B ₂ is output, the read enable signal E _A, is H-level and L-level of E _B switch. For this reason, the (X, Y) coordinates of the beam point P output from the arithmetic circuit 42 in this field are latched by the output holding circuit 52A, and at this time, the (X, Y) of the beam point P previously latched by the output holding circuit 52B. Y) The coordinates are output to the game calculation circuit 22. Thus, in the apparatus of the embodiment, the writing and reading of the (X, Y) coordinates of the beam point P to the output holding circuits 52A and 52B are alternately performed.

  The hit determination circuit 46 collates the (X, Y) coordinates of the beam point P input to the game calculation circuit 22 with the display coordinate area of the target calculated and output by the game calculation circuit 22, and the light beam 200. Perform hit discrimination. That is, when it is determined that the (X, Y) coordinates of the beam point P are included in the predetermined display area of the target, it is determined that the light beam 200 has hit the target, and the hit detection signal is transmitted to the game arithmetic circuit. Output to 22

  Based on the hit determination signal and the beam point coordinates, the game calculation circuit 22 displays a landing image on the screen when the laser beam 200 deviates from the target, and when the laser beam 200 hits the target. Then, the image synthesis circuit 26 and the TV projector 28 are controlled to display the target bullet image on the screen 10.

  In this way, in this embodiment, the (X, Y) coordinates of the beam point P can be calculated by a simple calculation operation for each field of the video signal 300 based on the video signal 300 output from the video camera 30. Thus, the configuration of the entire circuit can be made simple and inexpensive.

  In particular, according to the shooting game apparatus of the present embodiment, it is possible to determine whether or not the laser beam 200 has hit the target without synchronizing the TV projector 28 and the video camera 30 at all.

  In addition, this invention is not limited to the said Example, Various deformation | transformation implementation is possible in the range of the summary of this invention.

  For example, in the above-described embodiment, the shooting game apparatus for one player has been described as an example. However, the present invention is not limited to this, and a shooting game apparatus for a plurality of players can be configured. In this case, for example, control may be performed so that the laser beam 200 is alternately output for each field from each laser gun 14 used by a plurality of players. In this way, it is possible to configure a shooting game apparatus that can accurately detect the landing position of the laser beam 200 of each player for each field.

  As described above, according to the present invention, when a shooting game is performed by emitting a light beam from a shooting means toward a predetermined target displayed on a screen using a projector, the projector and the shooting means are synchronized. Therefore, it is possible to accurately detect the hit position of the light beam and perform the hit discrimination, and thus the configuration of the entire apparatus can be made simple and inexpensive.

  In particular, according to the present invention, since the synchronization between the projector and the shooting means becomes completely unnecessary, even when the shooting game apparatus is installed in a game field or the like for a long period of time, it is caused by poor synchronization between the projector and the shooting means. Therefore, it is possible to provide a shooting game apparatus with less trouble over a long period of time.

It is a schematic perspective view explanatory drawing of the shooting game apparatus of this invention. It is a block circuit diagram of the shooting game apparatus of an Example. FIG. 3 is a timing chart showing the operation of the circuit shown in FIG. 2.

Explanation of symbols

10 Screen 14 Laser gun 22 Game operation circuit 24 ROM
26 Image composition circuit 28 TV projector 30 Video camera 32 Filter 46 Hit determination circuit P Beam point 200 Laser beam

Claims (2)

A projector that projects a shooting video image of a given target on the screen;
Shooting means for launching a light beam that is distinguishable from the video image toward a target of the projector;
Photographing means for photographing the screen;
Coordinate calculation means for calculating the beam point (X, Y) coordinates of the light beam on the screen from the video signal photographed by the photographing means;
Collating the calculated beam point coordinates with the display position of the target, hit determination means for determining the hit of the light beam,
Based on the beam point coordinates or the hit determination signal, the image synthesizing calculation means for displaying a landing image or a target bullet image on the projector,
Including
The coordinate calculation means includes
A pulse generator for outputting clock pulses;
A count unit that counts the clock pulse from when the vertical synchronization signal of the video signal is output until the beam point signal is output;
A calculation unit that divides the count value by a predetermined reference pulse number and calculates and outputs the X coordinate and Y coordinate of the beam point on the screen;
A shooting device comprising: In claim 1,
The shooting device according to claim 1, wherein an optical filter that selectively transmits the light beam is provided in the light incident optical path.

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