JPH11125499A - Bullet shooting position distinguishing unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To distinguish the shooting position of a bullet hitting a target. SOLUTION: The movable width of a shooter on the shooter line of a shooting lane is 11 and a bullet passing position sensor 20a is located at a position separated by a distance (b) from the shooting line and a distance (a) from a target 1a. Output of the sensor 20a is connected through a cable with an impact position detector 2a having a converter unit for deciding whether a bullet hitting the target 1a is shot from its shooting lane or other shooting lane based on the outputs from a plurality of impact position sensors and bullet passing position sensors 20a. The decision results are presented on a display unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bullet firing position discriminating apparatus suitable for discriminating a firing lane of a bullet hitting a target.

[0002]

2. Description of the Related Art A technique for detecting a hit position of a bullet in a target by using a plurality of sensors for detecting a shock wave generated when a shot bullet flies at high speed in the air is disclosed in Japanese Patent Application Laid-Open No. 62-19193. It is indicated in the gazette. FIG. 2 is a perspective view showing a configuration of a conventional shooting range. The conventional device is shown in FIG.
As shown in (1), the impact position is detected, and the impact fired from a shooter in another lane is also detected, and no consideration is given to discriminating between the self and others. There is also a technique for discriminating which shooter fired by a shock wave generated at the time of firing. However, it is difficult to discriminate if the firing is simultaneous.

[0003]

Normally, the score of a competitor in a shooting competition counts only the bullets hitting the target, so that the shooters of adjacent lanes fire simultaneously with each other, and the bullet of one shooter is fired simultaneously. If the player deviates from the shooter's own lane and hits the target in the other lane, an unreasonableness will be added to the score of the other shooter. As described above, the prior art does not consider whether a bullet is fired from an adjacent lane or a bullet fired from its own lane. is there. It is an object of the present invention to discriminate a firing position of a bullet hitting a target to be fired.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a landing position detection sensor which is installed in front of a target and detects a landing position of a fired bullet, and a bullet installation is provided between the landing position detection sensor and a shooting line. and bullets passing position detecting sensor for detecting the passage position, the landing position x ₂ from the target center of bullets the landing position detecting sensor has detected, the passage position from the target center of the bullet the bullet passing position detecting sensor has detected and x _3, the width l ₁ of the movement of the outgoing bullet point is permitted in the shooter line,
A distance a between the impact position detection sensor and the bullet passing position detection sensor and a distance b between the bullet passing position detection sensor and the shooter line are input, and the expression x ₁ = ((a + b) / a)
· X ₃ - by (b / a) · x ₂ calculates the position x ₁ from the center of Hatsudan point in the shooter line, and determining the discrimination means effective landing if x ₁ ≦ l _1/2 Achieved by having

[0005] According to the above arrangement, the ratio of the impact position of the bullet to the position during the flight of the bullet, the distance between the bullet passing position detection sensor and the shooter line, and the distance between the impact position detecting sensor and the bullet passing position detection sensor. From the relationship, the position from the center of the firing point in the shooter line is calculated, and the bullet that lands on the target when that position is less than 1/2 of the width of the shooter's lane is not a flow bullet flying from another lane, It turns out that it is the impact of the archer in his own lane.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. First, the configuration of the embodiment of the present invention will be described. As shown in FIG. 2, the shooting range includes a plurality of shooting lanes 12. Shooting lane 12 is for shooters 7a, 7b, 7c
Shooting point 8 and target 1a, 1 to be fired
b, 1c. In front of targets 1a, 1b, 1c,
A landing gear detecting device 2a, 2b provided with at least three spaced landing position detecting sensors 10 provided with a protective gear 9 for avoiding a shot, behind the protective gear 9, that is, outside the field of view of the shooters 7a, 7b, 7c. , 2c are installed. These impact position detection devices 2a, 2b, 2c
a, 1b, and 1c, which are arranged apart from each other near the lower ends thereof, and detect a shock wave generated by a bullet fired toward the target 1a, 1b, or 1c. The impact position detection devices 2a, 2b, and 2c capture the shock wave of the bullet by the plurality of impact position detection sensors 10, and calculate the hit position 13 of the bullet from the difference in time of arrival of the shock wave at each impact position detection sensor 10 in the converter unit 11. A communication cable 3 and a connection box 4 are transmitted to the display unit 5 for displaying via the communication line, and connect between the converter unit 11 and the display unit 5. The shooting control device 6 receives and analyzes the landing position data transmitted from the landing position detection devices 2a, 2b, and 2c. In each shooting field, when there are a plurality of shooting lanes 12, the landing position detection devices 2a, 2b, and 2c are provided for each target 1 of each shooting lane 12, and the shooting control device 6 sets all the landing position detection devices 2a, 2b, 2c is totally controlled. The shooter 7a performs shooting training on the target 1a.
Similarly, the shooter 7b trains at 1b, and the shooter 7c trains at 1c. Since the gap is close to 2 to 3 m, and the distance between the shooter and the target is 100 to 300 m, there is a possibility that a small deviation from the aim may cause the shot to hit the adjacent lane.

FIG. 1 is an explanatory diagram for explaining the configuration of the embodiment of the present invention. Width shooter can move in lanes shooter line is l ₁ is wherein, a from the shooter line distance b, from the target 1a
A bullet passing position detection sensor 20a is arranged at a position separated by just a distance, and its output is connected to the landing position detection device 2a by a cable (not shown). Further, the converter unit 11 of the impact position detection device 2a performs the impact discrimination determination on the target 1a based on the outputs of the plurality of impact position detection sensors 10 and the bullet passage position detection sensor 20a, and the discrimination result is the communication cable 3 and the connection box 4 Is displayed on the display unit 5 via the. Assuming that the width of the shooter line is l ₁ and the width of the target is l ₂ , the bullet width in the bullet passage position detection sensor 20a is l ₃ ,
The width l _{1 of the} shooter line is expressed by the following equation.

[0008]

(Equation 1)

If the center line of the lane is set to 0 and the right coordinate is set to + (plus), and the left coordinate is set to-(minus), the horizontal coordinate x ₂ of the landing position detected by the landing position detection device 2a and the bullet relationship of the horizontal coordinates x ₁ of the bullet passing the horizontal coordinate x ₃ Tosureba Hatsudan point passing position detecting device 3 detects is represented by the following equation.

[0010]

(Equation 2)

[0011] The x ₁ is _{| x 1 | ≦ (l 1} /2) are those when fired from its own lane of _{| x 1 |> (l 1} /
At the time of 2), it was fired from another lane.

Next, the operation of the embodiment of the present invention will be described. If the shooter 7a has hit the impact point x ₂ of the target 1a performs shooting from Hatsudan point x ₁ Archer line with the goal of targeting 1a,
The bullet passes through the position x ₃ from the center of the bullet passing position detecting sensor 20a. Impact position detecting device converter unit 11 of 2a and the output x ₃ output x ₂ and projectile passing position detection sensor 20a of the landing position detecting sensor 10, the bullet passing position detecting sensor 20a from the shooter line which is previously input and stored
The firing point x ₁ is determined based on the distance b to the target and the distance a from the plurality of landing position detection sensors 10 to the bullet passage position detection sensor 20a.
If the absolute value of x ₁ does not exceed half of the previously input / stored width of the shooter line l ₁ , it is discriminated from the bullet fired from the own lane, and the absolute value of x ₁ is the width of the shooter line if more than half of l ₁ to display to that effect to the display unit 5 to discrimination and the bullet was fired from the other lane. At the same time, the discrimination result is also transmitted to the shooting control device 6 and used for correct evaluation of the score.
When the shot is fired from another lane and lands on its own lane, there are the following display methods. (1) Display in a different color on the evaluation sheet of the own lane and do not score. (2) Different colors are displayed on the evaluation sheets of other lanes. (There are many targets in the distance and there may be misunderstandings.) The landing position detection device 2a and the target 1a are arranged at a distance of several tens of centimeters. The difference between the actual landing position of the target 1a and the landing position detected by the landing position detection sensor 10 can be ignored. Also,
It is necessary to arrange the target 1, the impact position detection device 2a, and the bullet passage position detection sensor 20a in a straight line. In addition to the method of checking the linearity by optical means such as transit and laser beam, the shooting It is also possible to perform several test shots before training, and to initialize the zero point based on the results of the passing and landing positions and the measured dimensions of x ₁ and x ₂ . In FIG. 1, a and b are shown at the same distance.
₁ The error of the calculation result increases. In the case of a single shot, evaluation can be made even if the detection time difference between the two sensors is ignored, but in the case of a continuous shot, only those before the time when the detection of the bullet passing position detection sensor 20a is longer than the detection of the landing position detection device 2a are valid. Should be evaluated. This certain time is a time required for a shot between the distances a, and is a value that can be fixed to a substantially constant range depending on the type of bullet.

[0013]

According to the present invention, it is possible to distinguish the firing position of a bullet by providing a sensor for detecting the passing position of the bullet between the firing point and the target and knowing the firing direction.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a conventional shooting range.

[Explanation of symbols]

 1a Target 1b Target 1c Target 2a Impact Position Detector 2b Impact Position Detector 2c Impact Position Detector 3 Communication Cable 4 Connection Box 5 Display Unit 6 Shooting Controller 7a Shooter 7b Shooter 7c Shooter 8 Shooting Point 9 Protective Gear 10 Sensor 11 Conversion Unit 12 shooting lane 13 hit position 20a bullet passing position detection sensor

Claims (1)

[Claims] 1. A landing position detection sensor installed in front of a target to detect a landing position of a fired bullet, and a bullet passage installed between the landing position detection sensor and a shooter line to detect a passage position of the bullet. a position detection sensor, and the landing position x ₂ from the target center of bullets the landing position detecting sensor has detected,
A passing position x ₃ from the target center of the bullet the bullet passing position detecting sensor has detected, the width l ₁ of the movement of the outgoing bullet point is permitted in the shooter line, the landing position detecting sensor and the bullet passing position detection The distance a between the sensors and the distance b between the bullet passing position detection sensor and the shooter's line are input, and the expression x ₁ = ((a + b) / a) · x _3- (b / a) · x ₂ A bullet firing position discriminating apparatus, comprising: a discriminating means for calculating a position x ₁ of the firing point from the center of the shooting line, and determining that x ₁ ≦ l _1/2 is a valid landing.