JP3961726B2 - Automatic shooting evaluation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic shooting evaluation apparatus that automatically determines whether or not a shot bullet has hit a target in a shooting training of a helicopter cannon, for example, and automatically calculates a hit rate and a hit position. .
[0002]
[Prior art]
In the shooting training, it is indispensable to determine whether or not the shot bullet has hit the target and to grasp the hit rate and the hit position.
[0003]
[Problems to be solved by the invention]
However, in the helicopter cannon shooting training, conventionally, the number of bullets that hit the target was counted by manually counting the number of holes opened in the target after shooting. In addition, the hit ratio was calculated by using the number of hits manually and the number of shots.
Furthermore, in order to manually count the number of holes opened in the target after shooting, you must inevitably enter the shooting area. However, if you enter the shooting area immediately after shooting, there is a risk of accidental shooting. Therefore, until the number of ammunition hits the target is known, it is necessary to wait for more than half a day after the entry restriction is released, that is, after the shooting is finished.
As a result, the result of the shooting was not understood to be less than half a day, and the shooter could not be given appropriate advice on the spot.
Furthermore, when a plurality of shooters fired the same target, it was not possible to obtain individual shooting results. Therefore, it was difficult for multiple shooters to perform shooting training within half a day required for target exchange.
[0004]
In view of the above circumstances, the present invention instantaneously determines whether or not a shot bullet has hit a target, and also instantly grasps its hit rate and hit position, and a plurality of shooting hands fires continuously. An object of the present invention is to provide an automatic shooting evaluation apparatus that can obtain a shooting result for each individual even if the shooting is performed.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the first invention is as described in claim 1,
A target (10) that transmits radio waves excluding a frame forming an outline;
Irradiation means (for example, an irradiator 11) that is provided obliquely in front of this target and radiates radio waves that spread as it travels so as to include the target;
A receiving means (for example, a receiver 12) that receives a reflected wave that is provided obliquely in front of the target and that is generated when a bullet that is shot toward the target reflects a radio wave from the irradiation means;
The bullet flying height recognized from the wave receiving result of the wave receiving means coincides with the height of the target, and the wave receiving time length during which the wave receiving means receives the reflected wave is An analysis unit that determines that the bullet has hit the target when it is between the reception time length when passing through one end of the target and the reception time length when passing through the other end ( 13)
It is an automatic shooting evaluation apparatus (1) provided with.
[0006]
In the first aspect of the present invention, since the radio wave from the irradiating means is irradiated so as to include the target, the bullet shot toward the target reflects the radio wave for a certain period of time. Here, since the radio wave spreads as it progresses, the length of time that the bullet reflects the radio wave becomes longer as the trajectory of the bullet moves away from the irradiation means. Accordingly, the analysis unit can recognize the distance between the trajectory of the bullet and the irradiation unit from the time length during which the reception unit receives the reflected wave.
Here, since the positional relationship between the irradiation means and the target is uniquely determined, the analysis unit passes the other end of the reflected wave when the bullet passes through one end of the target and the other end. It is possible to recognize in advance the time length at the time. For this reason, when the reception time length of the actual reflected wave is between these values, it can be determined that the trajectory of the bullet matches the target in the horizontal direction.
[0007]
Moreover, since the analysis part can also recognize the generation height of the reflected wave, that is, the height of the trajectory of the bullet from the transmission position of the reflected wave, it can determine whether the flying height of the bullet matches the height of the target.
Furthermore, since the target transmits radio waves, even if a bullet is hidden behind the target, the above-described function of the automatic shooting evaluation apparatus is not affected.
[0008]
Therefore, according to the first aspect of the invention, the analysis unit can recognize whether the height of the shot bullet and the distance from the irradiation means coincide with the target, so whether the shot bullet hit the target. It can be automatically determined whether or not. For this reason, a plurality of shooters can continuously perform shooting training, and each shooting result, that is, the hit rate can be instantaneously counted.
[0009]
Further, as described above, the analysis unit recognizes the position of the bullet trajectory in the horizontal direction from the wave reception time length, and can also recognize the height of the bullet flying.
Therefore, as described in claim 2, the shooting evaluation apparatus can also recognize the hit position of the bullet from the bullet flying height and the reception time length.
[0010]
Moreover, as described in claim 3, the second invention is as follows.
A target (20) that does not transmit radio waves,
Irradiation means (for example, an irradiator 11) that is provided obliquely in front of one end of the target and radiates radio waves so as to include the target as it travels;
A wave receiving means (for example, a wave receiver 12) that is provided obliquely in front of one end of the target and receives a reflected wave generated by a bullet shot toward the target reflecting a radio wave from the irradiation means. When,
When a bullet interrupts the reflection of the radio wave, and the interruption time length is shorter than the interruption time length when the bullet passes the other end of the target, it is recognized from the reception result of the receiving means , An analysis unit (14) for determining that the bullet has hit the target;
It is an automatic shooting evaluation apparatus (2) provided with.
[0011]
In the invention of claim 3, the bullet generates the same reflected wave as in claim 1. Here, since the radio wave emitted from the irradiation means spreads as it travels, the time it takes for the bullet to pass through the radio wave irradiation area, that is, the length of time that the bullet produces the reflected wave is the trajectory of the bullet Becomes longer as the distance from the irradiation means increases.
Further, since the target does not transmit radio waves, an area where radio waves do not reach occurs behind the target. For this reason, when the bullets fly away from the one end side of the target (including when the target hits the target) with reference to the irradiation means, a time zone in which no reflected wave is generated occurs.
The length of this time zone, that is, the interruption time length, becomes longer as the bullet trajectory moves away from the target.
Therefore, the analysis unit can detect that the bullet has hit the target when the interruption is detected and the interruption time length is shorter than the interruption time length when the bullet passes the other end of the target.
[0012]
In addition, since the analysis unit can recognize the generation height of the reflected wave, that is, the height of the trajectory of the bullet, similarly to the first aspect, it can determine whether the flying height of the bullet matches the height of the target.
[0013]
Therefore, according to the invention of claim 3, since the analysis unit can recognize whether the height of the shot bullet and the distance from the irradiation means coincide with the target, whether the shot bullet hit the target. It can be automatically determined whether or not. For this reason, a plurality of shooters can continuously perform shooting training, and each shooting result, that is, the hit rate can be instantaneously counted.
[0014]
Further, as described above, the analysis unit recognizes the horizontal position of the bullet trajectory from the length of the interruption time, and can also recognize the bullet height.
Therefore, as described in claim 4, the automatic shooting evaluation apparatus can also recognize the hit position of the bullet from the height of the bullet and the interruption time length.
[0015]
In the above-described invention, as the irradiating means and the wave receiving means, for example, an irradiator and a wave receiver used in an ordinary radar system are used.
The analysis unit includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), a storage device having a storage medium, an input unit such as a keyboard, a CRT (Cathode -It is roughly composed of display devices such as Ray tube) and LCD (Liquid Crystal Display).
[0016]
In the second invention, the target may be a type that absorbs radio waves, or may be a type that reflects radio waves.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
<First embodiment>
Hereinafter, the automatic shooting evaluation apparatus 1 according to the first embodiment of the present invention will be described in detail with reference to FIGS.
FIG. 1 is a schematic diagram illustrating an environment in which the automatic shooting evaluation apparatus 1 is used. FIG. 2 is a schematic diagram illustrating the configuration and measurement principle of the automatic shooting evaluation apparatus 1. FIG. It is a figure which shows the structure of the target 10 of this in detail.
[0018]
As shown in FIG. 1, the automatic shooting evaluation apparatus 1 is preferably used when shooting training is performed, for example, at a distance of 1500 to 2000 m using a cannon 101 mounted on the helicopter 100. In FIG. 1, the automatic shooting evaluation apparatus 1 displays only the target body 10 a of the target 10.
As schematically shown in FIG. 2, the automatic shooting evaluation apparatus 1 includes a target 10, an irradiator 11 (irradiation means) that is provided obliquely forward and to the right of the target 10, and emits radio waves. A receiver 12 (receiver) provided at the same position and an analyzer 13 that recognizes and analyzes the reception result of the receiver 12 are roughly configured. Here, it is desirable to provide the irradiator 11 and the wave receiver 12 at the same position.
[0019]
As shown in the detailed view of FIG. 3, the target 10 includes a target main body 10a that forms the main body of the target 10, a metal frame 10b that fixes the outer periphery of the target main body 10a, and two that fix the top and bottom of the target main body 10a. Four ropes 10c, 10c, 10c, 10c, one end of which is connected to both ends of the metal frame 10b, and two poles 10d, 10d, each of which is connected to the other ends of the two ropes 10c, 10c positioned above and below, It is comprised by.
That is, the target body 10a of the target 10 is supported perpendicularly to the ground by the two poles 10d and 10d via the four ropes 10c, 10c, 10c, and 10c.
Here, the target main body 10a is, for example, a rectangle having a height of 4 m and a width of 5 m, a net made of a material that transmits radio waves oscillated by the irradiator 11 described later, and the size of the stitch is a bullet to be shot. If it is larger, its lifespan is improved without being destroyed by shooting.
Further, since the metal frame 10b generates a reflected wave, the analysis unit 13 described later can grasp the position and size of the target 10.
Further, the metal frame 10b and the rope 10c have such strength that the target main body 10a is not broken or cut even when the target body 10a receives wind or bullets. It is preferable to use a material that transmits light.
Further, the pole 10d is firmly fixed to the ground so that the target 10 does not fall down even if it receives wind or bullets.
[0020]
The irradiator 11 includes, for example, an excitation unit that excites an electric signal having a frequency in the microwave region, an amplification circuit that amplifies the electric signal excited by the excitation unit, and a specific direction of the electric signal amplified by the amplification circuit. And an irradiating antenna with good directivity that continuously radiates as radio waves.
That is, the configuration of the irradiator 11 is substantially the same as that of an irradiator used in an ordinary radar system for moving body measurement, and radiates radio waves toward the target 10 at an irradiation angle θ. For this reason, the radio wave spreads away from the irradiator 11.
Here, the output of the amplification circuit is appropriately adjusted according to the distance between the target 10 and the irradiator 11. Further, the irradiation angle θ is set to be slightly larger than the viewing angle φ of the target 10.
[0021]
The wave receiver 12 includes a receiving antenna having a high gain with respect to a radio wave having the same frequency as the radio wave irradiated from the irradiator 11, and a transmission unit that transmits a reception result of the receiving antenna to the analysis unit 13. , Schematically. Here, the transmission means includes both wireless and wired.
[0022]
The analysis unit 13 is roughly configured by a CPU, a ROM, a RAM, a storage device having a storage medium, an input unit such as a keyboard, and a display device such as a CRT or LCD. Here, the storage medium is composed of a magnetic or optical recording medium or a semiconductor memory, and is fixedly attached to the storage device or is detachably mounted. The analysis unit 13 has a function similar to that of a normal radar analysis unit, and grasps the flying height of a bullet.
[0023]
Here, according to a calculation program stored in advance in the analysis unit 13, the CPU receives the reflected wave due to the bullets flying around the target 10 and the time length TB1 and the bullets fly. From the height, it is determined whether or not the bullet has hit the target 10, including the hit position, and the result is stored.
[0024]
That is, the CPU calculates TB1 from the wave reception result of the wave receiver 12 according to a calculation program stored in advance in the analysis unit 13, and when this TB1 hits one end of the target 10, the reflected wave The time length T11 receiving and the time length T12 receiving the reflected wave when hitting the other end of the target 10 are compared.
As described above, since the radio wave from the irradiator 11 spreads as the distance from the irradiator 11 increases, TB1 becomes longer as the bullet moves away from the irradiator 11. For this reason, the CPU determines that the bullet has deviated from the target 10 when TB1 <T11 or TB1> T12, and the height at which the bullet flies coincides with the target 10 and T11 <TB1 < In the case of T12, by assuming that the bullet hits the target 10, it is possible to recognize whether the bullet is hit or not.
[0025]
For this reason, for example, when the bullet 3a, bullet 3b, bullet 3c, and bullet 3d shown in FIG. 2 are continuously fired from the cannon 101 of the helicopter 100, the automatic shooting evaluation apparatus 1 determines that the bullet 3a satisfies TB1 <T11. Therefore, it is determined that the bullet 3d satisfying TB1> T12 has deviated from the target 10, and the bullets 3b and 3c satisfying T11 <TB1 <T12 are determined to have hit the target 10.
[0026]
Further, since the position of the bullet trajectory in the horizontal direction can be grasped from the length of TB1 and the height of the bullet flying can be grasped, the analysis unit 13 can also grasp the hit position.
[0027]
As described above, according to the automatic shooting evaluation apparatus 1 according to the first embodiment of the present invention, the bullet flying near the target 10 receives the reflected wave generated by reflecting the radio wave transmitted from the irradiator 11. By capturing using the waver 12, and analyzing the length of time to receive the wave in the analysis unit 13, it is determined whether or not the shot bullet has hit the target 10, that is, the shooting result is instantaneously Since it is converted into a signal, it is possible to know the shooting result instantly and also to know the hit rate and hit position instantly.
In addition, since the shooting results are signaled, the shooting results such as the hit rate and the hit position can be easily compiled at any time, so even if multiple shooters shoot continuously in a short time, Each shooting result can be easily obtained.
Also, since the shooting result can be known without entering the shooting area, the danger is reduced.
[0028]
Furthermore, since the shooting result is automatically calculated by the analysis unit 13 and can be stored in the storage medium, the calculation and management of the shooting result is facilitated.
In addition, the shooter can immediately know the shooting result by placing the analysis unit 13 in the vicinity of the gunner. Therefore, the accuracy of the shooting is improved by re-adjusting the shooting parameters based on the advice of the instructor. Can be achieved.
[0029]
<Second embodiment>
Next, the automatic shooting evaluation apparatus 2 which is the 2nd Example of this invention is demonstrated in detail using FIGS.
FIG. 4 is a schematic diagram illustrating the configuration and measurement principle of the automatic shooting evaluation apparatus 2, and FIG. 5 is a diagram illustrating the target 20 of the automatic shooting evaluation apparatus 2 and the surrounding radio wave irradiation area. FIG. 6 is a diagram for explaining the measurement result of the automatic shooting evaluation apparatus 2 together with the trajectory of the bullet.
[0030]
As shown in FIG. 4, the automatic shooting evaluation apparatus 2 includes a target 20, an irradiator 11 disposed obliquely forward on the one end 20 a side of the target 20, and a receiver 12 provided at the same position as the irradiator 11. And an analysis unit 14 (not shown) for recognizing and analyzing the reception result of the receiver 12.
That is, the automatic shooting evaluation apparatus 2 has substantially the same configuration as the automatic shooting evaluation apparatus 1, but uses the target 20 instead of the target 10 and the analysis unit 14 instead of the analysis unit 13.
[0031]
The target 20 has substantially the same configuration as the target 10, but uses a target that reflects or absorbs radio waves to the target body and does not transmit radio waves. For this reason, as shown in FIGS. 4 and 5, the target 20 has a radio wave irradiation area α around which the radio wave from the irradiator 11 is irradiated, and the radio wave from the irradiator 11 does not reach behind the target 20. Region β occurs.
Therefore, since a bullet flying from a position far from the one end 20a with respect to the irradiator 11 enters the region β temporarily after passing through the radio wave irradiation region α, a time zone in which no reflected wave is generated occurs. Naturally, the receiver 12 cannot receive the reflected wave in this time zone.
[0032]
The analysis unit 14 has the same configuration as the analysis unit 13, but recognizes the length of the time zone in which the above-described receiver 12 cannot receive the reflected wave as the interruption time length TB2, and this interruption time length. Based on TB2 and the height at which the bullets fly, whether or not the bullet hits the target 10 is determined including the hit position and stored as follows.
[0033]
That is, the CPU of the analysis unit 14 calculates TB2 from the reception result of the receiver 12 according to a calculation program stored in advance in the ROM, and then uses TB2 to interrupt the bullet passing through the other end of the target 10. Compare with length T21. The CPU determines that the bullet has deviated from the target 10 when TB2 = 0 or TB2> T21, and the height at which the bullet flies coincides with the height of the target 10 and 0 <TB2 <T21. If so, it is determined that the bullet has hit the target 10.
[0034]
Therefore, for example, when the bullet 4a, bullet 4b, bullet 4c, bullet 4d, and bullet 4e (not shown in FIG. 4) shown in FIGS. 4 and 6 are continuously fired from the cannon 101 of the helicopter 100, automatic The shooting evaluation device 2 determines that the bullets 4a and 4e with TB2 = 0 (see the trajectory in FIG. 6A and FIG. 6E) and the bullet 4d with TB2> T21 have deviated from the target 20. It is determined that the bullet 3b and the bullet 3c satisfying 0 <TB2 <T21 have hit the target 20.
In addition, in the bullet 4e, it can be determined that it has deviated from the target 20 because the flying height deviates from the target 20.
[0035]
Further, since the position of the bullet trajectory in the horizontal direction can be grasped from the length of TB2 and the height of the bullet flying can be grasped, the analysis unit 14 can also grasp the hit position.
[0036]
As described above, according to the automatic shooting evaluation apparatus 2 according to the second embodiment of the present invention, a bullet flying near the target 20 that does not transmit radio waves is generated by reflecting radio waves transmitted from the irradiator 11. The reflected wave is captured using the receiver 12, and the length of the interruption time TB2 in which the reception time is interrupted is analyzed by the analysis unit 13, so that the shot bullet hits the target 20 Since it determines whether or not, that is, the shooting result is instantly signaled, the same effect as the automatic shooting evaluation apparatus 1 described above can be obtained.
[0037]
The present invention is not limited to the two embodiments described above, and may be arbitrarily modified without departing from the spirit of the invention.
For example, a program for setting the MTI (Moving-Target Indicator) specification may be stored in the ROM. In this case, the CPU stores the reflected wave from the stationary object such as the target 10 in the RAM in advance, so that the stationary object is detected from the reception result of the receiving antenna of the receiver 12 during operation. The reflected wave is canceled out, so that a stationary object such as the target 10 is not displayed on the display device.
The automatic shooting evaluation devices 1 and 2 can also perform shooting evaluation of shooting devices other than the machine gun mounted on the helicopter.
[0038]
【The invention's effect】
From the above, according to the present invention, since the analysis unit can recognize whether the height of the shot bullet and the distance from the irradiation means coincide with the target, it is determined whether the shot bullet hit the target. Judgment can be made automatically. For this reason, a plurality of shooters can continuously perform shooting training.
[Brief description of the drawings]
FIG. 1 is a schematic diagram for explaining an environment in which an automatic shooting evaluation apparatus according to a first embodiment of the present invention is used.
FIG. 2 is a schematic diagram illustrating the configuration and measurement principle of the automatic shooting evaluation apparatus.
FIG. 3 is a diagram showing in detail a target configuration of the automatic shooting evaluation apparatus.
FIG. 4 is a schematic diagram for explaining the configuration and measurement principle of an automatic shooting evaluation apparatus according to a second embodiment of the present invention.
FIG. 5 is a diagram illustrating a target of the automatic shooting evaluation apparatus and a radio wave irradiation area around the target.
FIG. 6 is a diagram for explaining measurement results of the automatic shooting evaluation apparatus together with the trajectory of bullets.
[Explanation of symbols]
1, 2 Automatic shooting evaluation device 10, 20 Target 11 Irradiator (irradiation means)
12 Receiver (Receiving means)
13,14 Analysis unit

Claims (4)

With targets that transmit radio waves,
Irradiation means that is provided obliquely in front of this target and irradiates radio waves that spread as it travels so as to include the target;
Receiving means for receiving a reflected wave that is provided obliquely in front of the target and that is generated by reflecting a radio wave from the irradiation means by a bullet shot toward the target;
The flying height of the bullet recognized from the wave reception result of the wave receiving means coincides with the height of the target, and the reception time length during which the wave receiving means receives the reflected wave is An analysis unit that determines that the bullet has hit the target when it falls between a reception time length when passing through one end of the target and a reception time length when passing through the other end; ,
An automatic shooting evaluation apparatus comprising: In the automatic shooting evaluation device according to claim 1,
An automatic shooting evaluation apparatus characterized in that the analysis unit recognizes a bullet hit position from a bullet flying height and a reception time length. With targets that do not transmit radio waves,
Irradiation means that is provided obliquely in front of one end of the target and radiates so as to include the target as it travels,
A receiving means for receiving a reflected wave generated by reflecting a radio wave from the irradiating means, which is provided obliquely in front of one end of the target and is shot toward the target;
When a bullet interrupts the reflection of the radio wave, and the interruption time length is shorter than the interruption time length when the bullet passes the other end of the target, when recognized from the reception result of the receiving means An analysis unit that determines that the bullet hits the target;
An automatic shooting evaluation apparatus comprising: In the automatic shooting evaluation apparatus according to claim 3,
An automatic shooting evaluation apparatus characterized in that the analysis unit recognizes a bullet hit position from a bullet flying height and an interruption time length.

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