JPH0783600A - Shoot evaluation device - Google Patents

Abstract

PURPOSE:To provide a small-sized and light weight displaying part by a method wherein a sensor for sensing a passing point of a bullet or a bullet point is arranged and a liquid crystal display for displaying a result of shooting in response to the value detected by the sensor is provided. CONSTITUTION:A shock wave 7 generated from a bullet 6 launched from a small pistol 5 is detected by a plurality of shock wave sensors 11 within a sensor device 10 mounted near a target 8, and a sensed signal from each of the sensors 11 is amplified at a pre-amplifier 12. The amplified signal is discriminated at a comparing and discriminating part 13 whether or not the shock wave passes through it. Then, a difference in time of reaching of the shock wave for each of the shock wave sensors 11 is detected at a time difference- sensing part 14, a passing position of the bullet 6 is calculated in reference to a time difference at a calculating part 5 and then data is fed to a displaying part 17 installed near a shooting person. The displaying part 17 converts an image signal into a timing for displaying the liquid crystal display and then an image is displayed as the liquid crystal display. With such an arrangement as above, it is possible to make a small-sized and light weight displaying part 17 and to reduce a load of the shooting person.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shooting evaluation apparatus for automatically scoring a bullet, which is shot by a shooter toward a target, by detecting a passing point and a bullet hole by a sensor.

[0002]

2. Description of the Related Art A firearm-based shooting evaluation system includes a laser system, a conductive rubber system, an image processing system, a shock wave detection system, etc., depending on the method of identifying a bullet passing point. Among these, the shock wave detection method that meets the requirements of reliability against failure and instantaneous bullet mark display is most widely used.

In the following, a conventional shooting evaluation apparatus will be described by taking a shooting evaluation apparatus using a shock wave detection method as an example.
FIG. 6 is a system diagram of a conventional shooting evaluation device using a shock wave detection method. Shooting evaluation device 1'by this shock wave detection method
Is a shock wave 7 generated from a bullet 6 emitted from a small firearm 5.
Is detected by a plurality of shock wave sensors 11 in the sensor unit 10 installed near the target 8, and the detection signal from each sensor 11 is amplified by the preamplifier section 12. The comparison / determination unit 13 determines / recognizes whether or not the shock wave has passed through the amplified signal. Then, the time difference detection unit 14 detects the shock wave arrival time difference to each shock wave sensor 11, the calculation unit 15 calculates the passing position of the bullet from the time difference, and the display unit 16 installed near the shooter displays the passing position. Is sent.

The structure of the display unit 16 is shown in FIG. FIG. 7 is a system diagram of the display unit 16 of the conventional shooting evaluation system using the shock wave detection method. The calculator 160 sends coordinate data representing the bullet passing position transmitted from the calculator 15 to the input / output port 1
The command is input from 61, and a drawing command command for displaying the target passing point is issued to the image display controller 162. Image display controller 162 that receives a drawing command
Is a configuration in which drawing data is written in the frame buffer memory 163, converted into a data format for image display by the shift register 164 and connected to the CRT display 165 to display an image. The display unit 16 is placed near the shooter so that the shooter can see the shooting result displayed on the display, and moves the shooting result every time the shooting position changes.

[0005]

As described above, the display unit 1
Since 6 is moved every time the shooting position changes, it is important to reduce the size and weight. However, in the conventional shooting evaluation apparatus 1 ', C is displayed on the display of the display unit 16.
Since the RT 165 is used, it is difficult to reduce the size of the display unit 9 due to the shape of the CRT 165, and no consideration has been given to reducing the size and weight of the display unit. Therefore, every time the shooting position is changed, the burden of the shooter who has to move the display unit 16 by himself is large.

It is an object of the present invention to provide a shooting evaluation apparatus which can reduce the burden of a shooter who has to move the display unit every time the shooting position is changed by reducing the size and weight of the display unit. .

[0007]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problems includes a sensor for detecting a passing point of a bullet or a bullet hole,
A shooting evaluation apparatus having a display unit for displaying a shooting result based on a value detected by the sensor is provided with a liquid crystal display for displaying the shooting result on the display unit.

In addition, the present invention also includes a shooting evaluation device which is provided with a centering circuit for displaying the shooting result as an image in a substantially central portion of the screen of the liquid crystal display in correspondence with the number of pixels of the liquid crystal display. And

[0009]

When the shooting result is displayed on the liquid crystal display, the liquid crystal display is thinner and lighter than the conventional CRT, so that the display unit can be made smaller and lighter. Therefore, it is possible to reduce the burden on the shooter who has to move the display unit each time the shooting position is changed.

When a liquid crystal display is used instead of a CRT, the liquid crystal display is a product with a very short product cycle, and the resolution will be increased (the number of pixels will be increased) in the future, and the number of pixels assumed at the time of initial development will be increased. It is highly possible that the liquid crystal display of will not be available during product operation.
When the number of pixels on the display screen increases, the display area is biased toward the upper part of the screen unless any measures are taken. FIG. 8 is a diagram for explaining such a case, and FIG. 8A shows a screen 166 of a liquid crystal display whose number of pixels is 640 × 400.
FIG. 8B shows a screen 167 of a liquid crystal display having 640 × 480 pixels. That is, what was supposed with 640 × 400 pixels is
If the liquid crystal display with this number of pixels cannot be obtained and only the one with 640 × 480 pixels is available, the display area is biased to the upper part of the screen like the screen 167, and the display of the shooting result is unnatural and difficult to see. It becomes a thing. Further, the change of the display program corresponding to the increased number of pixels requires a large design change such as the change of the address mapping of the frame buffer memory 163 and the change of the coordinates of the drawing data.

However, according to the shooting evaluation apparatus of the present invention provided with the centering circuit, even if the number of pixels of the display screen is increased, the centering circuit does not bias the screen display and displays it in the center of the screen so that the shooter can see it most easily. Therefore, even if the shooting result is displayed on the liquid crystal display, there will be no such inconvenience in the future that the display of the shooting result is biased and is difficult for the shooter to see.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram of a shooting evaluation apparatus according to a first embodiment of the present invention. Among the respective members of the shooting evaluation apparatus 1 of the present embodiment, the members having the same reference numerals as those of the shooting evaluation apparatus of FIG.
Since it is the same member as the conventional shooting evaluation apparatus 1'described with reference to FIG. In this embodiment, the display unit 1
Equipped with 7. The display unit 17 is a member corresponding to the display unit 16 of the conventional shooting evaluation apparatus 1 '. FIG. 2 is a system diagram of the display unit 17. The calculated value of the bullet passing point from the computing unit 15 is input to the input / output port 170, the computing unit 171 reads the calculated value, and sends an image display command for displaying the bullet passing point to the image display controller 172.
The image display controller 172 draws on the frame buffer memory 173, and the drawing data written in the frame buffer memory 173 is stored in the shift register 17
4 is converted into a video signal. This video signal is converted by the liquid crystal controller 175 into a timing for displaying the liquid crystal display 176, and a desired image is displayed on the liquid crystal display 176.

Next, the operation of this embodiment will be described. According to the above configuration, the shooting result is displayed on the liquid crystal display 176.
Can be displayed on. Since the liquid crystal display is thinner and lighter than a conventional CRT, the display unit 17
Can be made smaller and lighter than conventional ones. Therefore, it is possible to reduce the burden of the shooter who has to move the display unit 17 every time the shooting position is changed.

Next, a second embodiment of the present invention will be described. FIG. 3 is a system diagram of the display unit 17 of the shooting evaluation device 1 according to the second embodiment of the present invention. Similarly to the first embodiment, the calculator 171 reads the calculated value of the bullet passing point input to the input / output port 170, and the image display controller 1
An image display command is sent to 72. The image display controller 172 draws on the frame buffer memory 173, and the drawn drawing data is written in the shift register 17
4 is converted into a video signal. This video signal is
The liquid crystal display 1 is passed through a centering circuit 177 and a liquid crystal controller 175 for displaying a screen at an optimum position corresponding to the number of pixels of the liquid crystal display 176.
Sent to 76. As described above, the second embodiment is different from the first embodiment in that the centering circuit 177 is provided. In other respects, the configuration of the second embodiment is the first
The description is omitted because it is the same as the embodiment.

FIG. 4 shows the centering circuit 177 of this embodiment.
3 is a diagram showing a circuit configuration of FIG. A signal indicating the number of pixels of the liquid crystal display 176 (SIZE), a vertical synchronizing signal (VSYNC) and a horizontal synchronizing signal (HSYNC) from the video signal.
In addition, a high-speed scan synchronization signal generation counter 178 to which a counter synchronization clock is input and an OR circuit 179 are provided. The image on one screen is the vertical sync signal (VSYNC
C) and the horizontal synchronizing signal (HSYNC) are displayed in synchronization. FIG. 5 is a conceptual diagram for explaining the operation of the centering circuit 177, 181 shows a liquid crystal display screen of 640 × 400 pixels, and 182 shows a liquid crystal display screen of 640 × 480 pixels displayed by using the centering circuit 177. .

In the following, the number of pixels of the liquid crystal display is 6
The operation of the centering circuit 177 will be described by taking the case of changing from 40 × 400 pixels to 640 × 480 pixels as an example. First, by using a dip switch or the like (not shown), the fact that the liquid crystal display 176 has 640 × 480 pixels is reflected in the SIZE signal.
80 is sent to the counter 178 for high speed scan synchronization signal generation. Based on this SIZE signal 180, the number of pixels that is half the increased number of pixels is calculated. That is, in this case,
(480-400) / 2 = 40. Immediately before the video data of the first line is output, in this case, the horizontal sync signal (HSYNCA) for 40 lines is generated by the high-speed scan sync signal generation counter 178, and the blanking period for one line before the video display is generated. The HSYNCA is output at a high speed by 40 lines, and the display start position of the liquid crystal display 176 is moved. In addition, this HSYNC
By the OR circuit 179 to which A and HSYNC are input,
Liquid crystal display 176 connected to this OR circuit 179
The horizontal synchronizing signal (HSYNCB) for 480 lines in total for one screen corresponding to the number of pixels of this liquid crystal display 1
It is output to 76. After outputting HSYNCA at high speed,
During normal video data display, the video data display area is set to the normal scan mode, and the standard horizontal sync signal (HSYN
After outputting the video data, the horizontal sync signal (HSYNCA) for 40 lines is again generated by the high-speed scan sync signal generation counter 178 by using C), and again 40 times during the blanking period for one line after the video display. The line HSYNCA is output at high speed to end the display of one screen.

Although the image centering in the vertical direction has been described as an explanation of the operation of the centering circuit 177, the image centering in the horizontal direction can be realized by the same means.

Next, the operation of this embodiment will be described. According to the shooting evaluation apparatus 1 of the present embodiment provided with the centering circuit 177, even if the number of pixels of the display screen increases, the centering circuit 177 allows the screen display to be displayed in the center portion of the screen so that the shooter can see it most easily without being biased. Therefore, even if the shooting result is displayed on the liquid crystal display 176, there will be no inconvenience in the future such that the display of the shooting result is biased and is difficult for the shooter to see. Further, the change of the display program corresponding to the increased number of pixels does not cause a large design change such as the change of the address mapping of the frame buffer memory and the change of the coordinates of the drawing data.

In each of the above-described embodiments, the shock wave detection type shooting evaluation apparatus has been described as an example.
The shooting evaluation device of the present invention can be applied to other types of shooting evaluation devices.

[0020]

According to the above-described shooting evaluation apparatus of the present invention, the liquid crystal display is thinner and lighter than the conventional CRT, so that the display unit can be made smaller and lighter. Therefore, it is possible to reduce the burden on the shooter who has to move the display unit each time the shooting position is changed.

Further, according to the shooting evaluation apparatus of the present invention provided with the centering circuit, even if the shooting result is displayed on the liquid crystal display, the display of the shooting result is biased and it becomes difficult for the shooter to see. This does not occur, and a change in the display program corresponding to the increased number of pixels does not cause a major design change in the shooting evaluation device.

[Brief description of drawings]

FIG. 1 is a system diagram of a shooting evaluation apparatus that is a first embodiment of the present invention.

FIG. 2 is a system diagram of a display unit of the shooting evaluation device according to the first embodiment of the present invention.

FIG. 3 is a system diagram of a display unit of a shooting evaluation device according to a second embodiment of the present invention.

FIG. 4 is a diagram showing a circuit configuration of a centering circuit of the shooting evaluation apparatus according to the second embodiment of the present invention.

FIG. 5 is a conceptual diagram illustrating the operation of the centering circuit of the shooting evaluation apparatus according to the second embodiment of the present invention.

FIG. 6 is a system diagram of a conventional shooting evaluation system using a shock wave detection method.

FIG. 7 is a system diagram of a display unit of a conventional shooting evaluation system using a shock wave detection method.

8A and 8B show a liquid crystal display screen, FIG. 8A shows a liquid crystal display screen having 640 × 400 pixels, and FIG. 8B shows a liquid crystal display having 640 × 480 pixels. The respective screens are shown.

[Explanation of symbols]

 1 shooting evaluation device 5 small firearm 6 bullet 7 shock wave 8 target 10 sensor unit 11 sensor 12 preamplifier 13 comparison judgment unit 14 time difference detection unit 15 arithmetic unit 17 display unit 170 input / output port 171 arithmetic unit 172 image display controller 173 frame buffer memory 174 Shift register 175 Liquid crystal controller 176 Liquid crystal display 177 Centering circuit

Claims (2)

[Claims] 1. A shooting evaluation device comprising a sensor for detecting a passing point of a bullet and a bullet hole, and a display unit for displaying a shooting result based on a value detected by the sensor, wherein the display unit displays the shooting result. A shooting evaluation device, which is equipped with a liquid crystal display. 2. The shooting according to claim 1, further comprising a centering circuit for displaying an image of the shooting result in a central portion of a screen of the liquid crystal display in correspondence with the number of pixels of the liquid crystal display. Evaluation device.