JP7140421B2 - target system - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to a target system, and more particularly to a target system capable of detecting the impact position, impact velocity, and the like more accurately.

Conventionally, when a BB bullet hits the target using a soft air gun, which is a toy gun equipped with a mechanism that shoots plastic bullets (hereinafter referred to as BB bullets) with low-pressure compressed air. Shooting competitions are held to compete for the accuracy of the landing position of the bullet. For example, by penetrating a BB bullet through a target paper on which a target is drawn, the impact position on the target paper can be specified.

Further, in Patent Document 1, microphones are attached to the four corners of a transparent sheet arranged so as to cover the screen of an image display device. A device for calculating the landing position on a sheet is disclosed. Also, this device does not have a mechanism for collecting bullets.

JP-A-8-110196

However, in the device disclosed in Patent Document 1 as described above, the microphones attached to the four corners of the transparent sheet detect the firing sound when the toy gun is fired, and the impact position is accurately determined. It was difficult to calculate. That is, in this device, the microphone is arranged on the front side of the transparent sheet, and the microphone cannot be sealed to prevent detection of the emitted sound. The configuration was easy to detect. For this reason, it is difficult to distinguish and process the firing sound when the toy is fired from the impact sound when the bullet hits the transparent sheet, so the impact is detected based on the firing sound. A malfunction occurred.

The present disclosure has been made in view of such circumstances, and is intended to prevent malfunctions based on firing sounds, etc., and to enable more accurate detection of impact positions, impact speeds, and the like.

A target system according to one aspect of the present disclosure includes a target plate that is a target of a flying object, and the target plate that is formed of a soft member that suppresses the repulsion of the flying object and receives the collision of the flying object by bending the target plate. and a space surrounded by at least the target plate and the housing so that the target plate can be vibrated like a film stretched over an opening. and a detection unit that detects an impact sound generated when the target plate collides with the target plate, and the space has a front opening covered with the target plate and a rear opening . A plate-shaped transparent member is arranged .

In one aspect of the present disclosure, a target device includes a target plate that is a target of a flying object, and a target plate formed of a soft member that suppresses the repulsion of the flying object. 2, the target plate is arranged in a space surrounded by at least the target plate and the housing, and a housing that fixes the target plate so that it can vibrate like a film stretched over the opening, and the flying object collides with the target plate. The space has a front opening covered with a target plate and a rear opening with a plate-shaped transparent member.

According to one aspect of the present disclosure, it is possible to prevent a malfunction based on a firing sound or the like, and more accurately detect the impact position, the impact velocity, and the like.

1 is a perspective view showing a configuration example of an embodiment of a target device to which the present technology is applied; FIG. It is a figure explaining the structure of a collection plate. Fig. 2 is a front view of the target device; Fig. 3 is a left side view of the target device; Fig. 3 is a right side view of the target device; FIG. 6 is an AA view of the target device in FIG. 5; It is a figure explaining an acoustic sensor. It is a figure explaining an outlet nozzle. 1 is a diagram showing a first configuration example of a target system including a target device; FIG. FIG. 10 is a diagram showing a second configuration example of a target system including a target device; FIG. 10 is a diagram showing the detection result of the impact position in the target system;

Hereinafter, specific embodiments to which the present technology is applied will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing a configuration example of an embodiment of a target device to which the present technology is applied.

The target device 11 shown in FIG. 1 includes a recovery mechanism for recovering a BB bullet 12 fired toward the target device 11 by a soft air gun, and an impact position and impact velocity when the BB bullet 12 lands. It has a function of outputting a detection signal for detecting In FIG. 1, the path of the BB bullet 12 is indicated by a dashed-dotted arrow. , and the opposite side (upper left side in FIG. 1) is the rear side of the target device 11 .

Further, on the back side of the target device 11, in addition to a target paper that serves as a target when the BB bullet 12 is fired, for example, a display unit (for example, a figure to be described later) that displays a target image similar to the target paper is arranged. 9, the monitor unit 122 of FIG. 10, etc.) are arranged. The BB bullet 12 fired toward the target through the target device 11 is reflected or rolled inside the target device 11, and then a recovery case is arranged on the left side of the target device 11 when viewed from the front. Collected at 13.

As shown in FIG. 1, the target device 11 includes a housing 21, a front plate 22, a rear plate 23, a target plate 24, a collection plate 25, an outlet nozzle 26, acoustic sensors 27-1 to 27-4, and a signal It comprises a processing substrate 28 .

The housing 21 has upper and lower surfaces and left and right side surfaces by assembling an upper surface plate 21a, a right side plate 21b, a left side plate 21c, and a lower surface plate 21d, and has a rectangular cylindrical shape with an open front surface and a rear surface. The upper surface plate 21 a is a plate-shaped member forming the upper surface of the housing 21 , and the right side plate 21 b is a plate-shaped member forming the right surface of the housing 21 . The left side plate 21c is a plate-like member forming the left side surface of the housing 21, and the lower plate 21d is a plate-like member forming the lower side surface of the housing 21. As shown in FIG. In this way, the housing 21 has a structure in which the top plate 21a, the right side plate 21b, the left side plate 21c, and the bottom plate 21d are assembled, so that, for example, the target device 11 can be stored in a small space.

The front plate 22 is a plate-like member attached to the housing 21 so as to cover the vicinity of the lower side of the front opening of the housing 21 .

The rear plate 23 is a transparent plate-like member attached to the housing 21 so as to cover the entire rear opening of the housing 21 .

The target plate 24 is, for example, a transparent plate-like member that receives the collision of the BB bullet 12 fired by the soft air gun toward the target arranged on the back side of the target device 11 . For example, the target plate 24 is made of a material having a certain degree of plasticity against impact (a material that is slow to restore), and more specifically, a soft vinyl chloride resin with a thickness of 2.0 mm. By using such a material, when the target plate 24 receives the collision of the BB bullet 12, it slowly returns to its original shape, so that the repulsion of the BB bullet 12 can be suppressed. The upper and lower ends and the left and right ends of the target plate 24 are fixed to the inner surface of the housing 21 so as to be flat as a whole, that is, to prevent bending. In addition, the target plate 24 has an inclination angle from the front side to the back side as it goes from the upper side to the lower side of the housing 21 (for example, as shown in FIG. ) inside the housing 21 .

The collection plate 25 is inside the housing 21, is a space on the front side of the target plate 24, and is located below the lower end of the front opening of the housing 21 (the upper end surface of the front plate 22). It is arranged in a space and is fixed so as to have an inclination downward toward the back side and downward toward the left side as a whole.

The discharge port nozzle 26 is attached to the outer surface of the left side plate 21c so as to cover the discharge port formed in the left side plate 21c of the housing 21 (discharge port 34 in A of FIG. 2 to be described later), and passes through the discharge port. A BB bullet 12 is guided toward a collection case 13. - 特許庁

The acoustic sensors 27-1 to 27-4, for example, detect the impact sound generated by the vibration of the target plate 24 when the BB bullet 12 hits the target plate 24, and measure the amplitude of the detected impact sound. An acoustic signal according to the change is supplied to the signal processing board 28 . 1, the acoustic sensors 27-1 to 27-4 are located near the rear side of the target plate 24 and are located near the four corners of the target plate 24. fixed inside. For example, the acoustic sensor 27-1 is arranged near the upper end of the inwardly facing surface of the left side plate 21c, and the acoustic sensor 27-2 is arranged near the upper end of the inwardly facing surface of the right side plate 21b. The acoustic sensor 27-3 is arranged near the lower end of the inwardly facing surface of the left side plate 21c, and the acoustic sensor 27-4 is arranged near the lower end of the inwardly facing surface of the right side plate 21b.

Here, the space 29 provided on the back side of the target plate 24 in which the acoustic sensors 27-1 to 27-4 are arranged is closed on the front side by the target plate 24 and closed on the top, bottom, left and right sides by the housing 21. The rear side is closed by a face plate 23 . That is, the acoustic sensors 27-1 to 27-4 are arranged in a closed space 29 that is closed from the outside by the housing 21, the back plate 23, and the target plate 24. FIG.

The signal processing board 28 is arranged in the space between the bottom plate 21 d and the collection plate 25 . The signal processing board 28 performs signal processing on the acoustic signals output from the acoustic sensors 27-1 to 27-4 when the BB bullet 12 hits the target plate 24. Outputs a detection signal for detecting the impact position and impact speed of the impact.

For example, the signal processing board 28 amplifies and full-wave rectifies the acoustic signal, and the peak hold signal holding the peak value of the amplitude and the signal obtained by integrating the peak hold signal are equal to or greater than the reference value. An impact sound detection time signal indicating the timing is output as a detection signal. Then, the signal processing board 28 supplies the detection signal to the personal computer 111 shown in FIG. 9 or the notebook personal computer 121 shown in FIG. 10, which will be described later.

The target device 11 is configured as described above, and the BB bullet 12 fired toward the target device 11 collides with the target plate 24 as indicated by the dashed line in FIG. At this time, the target plate 24 has a predetermined plasticity with respect to the impact as described above, and the area corresponding to the impact force of the target plate 24 is dented in an extremely shallow mortar shape centering on the point of impact, resulting in a BB. The impact caused by the collision of the bullet 12 is absorbed. Hereinafter, such depression of the shock absorbing material 33 of the target plate 24 and the collection plate 25 (see FIG. 2, which will be described later) is referred to as bending. The BB bullet 12 whose collision impact is absorbed by the target plate 24 in this way falls toward the collecting plate 25 and rolls toward the rear side and the left side within the target device 11 according to the inclination of the collecting plate 25 . After that, it is discharged from the discharge port of the left side plate 21c, passes through the discharge port nozzle 26, and is collected in the collection case 13. As shown in FIG.

Thus, the target device 11 is configured such that the target plate 24 can absorb the impact of the BB bullet 12 and the BB bullet 12 falls toward the collection plate 25, so that the BB bullet 12 The BB bullet 12 can be reliably collected without jumping out of the housing 21.例文帳に追加

Further, in the target device 11, as described above, the acoustic sensors 27-1 to 27-4 are arranged in the closed space 29, and the acoustic environment in the closed space 29 is constant.
Therefore, in the target device 11, the acoustic sensors 27-1 to 27-4 detect impact sounds with higher reproducibility. impact sound can be detected.

In other words, the target device 11 has a configuration in which the rear opening is covered with the back plate 23 and the front opening is covered with the target plate 24 with respect to the closed space 29 . As a result, in the target device 11, reproducible impact can be achieved by vibration when the BB bullet 12 collides with the target plate 24, like a musical instrument (for example, a drum or a timpani) that produces sound by vibrating a membrane stretched over an opening. A sound is produced.

Therefore, for example, when the BB bullet 12 hits a predetermined location on the target plate 24, the acoustic sensors 27-1 to 27-4 always detect the The same impulsive sound can be detected. As a result, based on the acoustic signals output from the acoustic sensors 27-1 to 27-4, the impact position, which is the position on the target board 24 where the BB bullet 12 has impacted, and the BB bullet when impacted on the target board 24 12 velocity (or the energy of the BB bullet 12 when it hits the target plate 24) can be detected very accurately.

Furthermore, in the target device 11, the acoustic sensors 27-1 to 27-4 are arranged in the closed space 29, so that the sound of the BB bullet 12 being fired by the soft air gun, for example, is detected by the acoustic sensor 27-1. through 27-4 can be avoided. For example, if the acoustic sensors 27-1 through 27-4 are arranged in an open space, the acoustic sensors 27-1 through 27-4 will detect the firing sound of the soft air gun. In this case, it was necessary to remove the shot sound from the acoustic signals output from the acoustic sensors 27-1 to 27-4, and it was difficult to accurately calculate the impact position and impact velocity.

On the other hand, the target device 11 has a configuration in which the acoustic sensors 27-1 to 27-4 are difficult to detect the firing sound of the soft air gun. It eliminates the need to remove the shot sound from the signal. Therefore, based on the acoustic signals output from the acoustic sensors 27-1 to 27-4, the impact position and impact velocity of the BB bullet 12 can be accurately calculated.

In addition, the target device 11 uses the target plate 24 that functions like the membrane of a musical instrument. -1 to 27-4 can accurately detect the impact sound. That is, in a structure using a polycarbonate plate, an acrylic plate, or the like as the target plate, vibration transmitted through the target plate itself may be detected, and it is assumed that accurate detection of the impact sound will be difficult. On the other hand, in the target device 11, the vibration transmitted through the target plate 24 itself is attenuated. can be detected.

Furthermore, the target device 11 can reduce impact noise (become quieter) than a configuration using a more rigid polycarbonate plate, acrylic plate, or the like as the target plate. By the way, it is feared that as a result of the reduction in the impact sound, the firing sound becomes relatively louder, resulting in an increase in malfunctions due to the firing sound. However, since the target device 11 is configured such that the acoustic sensors 27-1 to 27-4 are arranged in the closed space 29, as described above, in addition to the effect of blocking disturbances such as firing sounds, Therefore, it is possible to obtain the effect of measuring the sound pressure that has increased three times due to the impulsive sound being confined in the closed space 29 . As a result, for example, the noise sensor 27-1 to 27-4 are arranged when roughly estimating the disturbance blocking effect of preventing malfunction based on disturbance such as firing sound compared with the device disclosed in Patent Document 1. By making the space closed, it is assumed that the noise shielding effect is about 3 times higher, and the sound pressure rise due to the impulsive sound confined in the closed space is about 3 times higher. disturbance blocking effect can be expected. Further, by arranging the acoustic sensors 27-1 to 27-4 in the closed space 29, the BB bullet 12 does not collide with the acoustic sensors 27-1 to 27-4. Damage to the acoustic sensors 27-1 to 27-4 due to collisions is also avoided.

Further, in the target device 11, by arranging the acoustic sensors 27-1 to 27-4 in the closed space 29, it is possible to eliminate disturbance due to ambient sounds other than the firing sound of the soft air gun. For example, compared to a configuration in which the rear plate 23 is removed from the housing 21 and the acoustic sensors 27-1 to 27-4 are arranged in an open space, the acoustic sensors 27-1 to 27-4 are arranged in the closed space 29. 4, the measurement sensitivity of the acoustic sensors 27-1 to 27-4 for measuring impact sounds is improved (for example, about three times). As a result, for example, the noise resistance is improved by lowering the gain, and the difference in the detection value of each of the acoustic sensors 27-1 to 27-4 due to the distance from the impact position is reduced. Signal-based measurement accuracy can be improved. Note that the space 29 may be of a degree that can cut off sounds from the outside to some extent, and may have some gaps unlike a closed space that is completely cut off from the outside. Of course, it is more preferable if the space 29 is completely shut off from the outside.

By the way, it is assumed that the BB bullet 12 falling toward the collection plate 25 after being reflected by the target plate 24 bounces off the collection plate 25 to some extent. It is configured to suppress the rebound of the

The structure of the collection plate 25 will be described with reference to FIG.

FIG. 2 shows a schematic configuration example in which the lower portion of the target device 11 is enlarged. 2A is a configuration example of the target device 11 viewed from the left side, FIG. 2B is a configuration example of the target device 11 viewed from the front side, and FIG. 2C is a configuration example of the target device 11 viewed from the right side. This is the configuration example I saw.

As shown in FIGS. 2A and 2C, the collection plate 25 has an inclined portion that descends from the front plate 22 toward the rear plate 23 at an inclination angle of 6.0°. (for example, a range of 10 mm from the rear end) has a shape that does not tilt forward or backward. In other words, the collecting plate 25 is formed by bending such that the inclined portion on the front side forms an angle of 6.0° with respect to a predetermined range portion in the vicinity of the rear end. Also, as shown in FIG. 2B, the collection plate 25 is fixed to the housing 21 so as to be inclined downward from the right side plate 21b toward the left side plate 21c at an angle of inclination of 2.7°. In this manner, the collecting plate 25 is formed with a portion near the rear end thereof that does not tilt forward and backward, so that the BB bullet 12 can roll smoothly from the right side plate 21b toward the left side plate 21c. be done.

The collection plate 25 is constructed by laminating shock absorbing members 32 and 33 made of different materials on a plate member 31 subjected to such a bending process. For example, the plate member 31 is a thin iron plate with a thickness of 0.6 mm, the impact absorbing material 32 is a urethane sponge with a thickness of 3.0 mm, and the impact absorbing material 33 is a soft sponge with a thickness of 2.0 mm. of vinyl chloride resin is used.
In this way, for example, by arranging the impact absorbing material 32 using a urethane sponge between the plate member 31 and the impact absorbing material 33, the impact absorbing material 33 is in a floating state with respect to the plate member 31. As a result, the energy of the falling BB bullet 12 can be absorbed by the bending of the impact absorbing material 33 . Specifically, when a BB bullet 12 up to about 0.3J hits the impact absorbing material 33 of soft vinyl chloride resin (hardness #570) with a thickness of 2.0 mm, the dent generated in the impact absorbing material 33 is within 3 mm. Since it is certain that the energy of the BB bullet 12 whose energy is attenuated by collision with the target plate 24 becomes 0.3 J or less, the collection plate 25 can sufficiently absorb the impact of the BB bullet 12. confirmed.

That is, with such a laminated structure, the collection plate 25 can absorb the energy of the BB bullets 12 that are reflected by the target plate 24 and fall, and can suppress the rebound of the BB bullets 12. The bullet 12 rolls along the inclination of the collecting plate 25 . In addition, since the collection plate 25 is inclined downward toward the rear side, even if the BB bullet 12 bounces off the collection plate 25, the BB bullet 12 will be directed toward the rear side, and the housing will be closed. It is prevented from jumping out from the front opening of 21 . Since the BB bullet 12 whose energy is attenuated by the collision with the target plate 24 also remains rotating, the rotation causes the BB bullet 12 to jump obliquely downward or violently roll around on the collecting plate 25. There is On the other hand, since the collection plate 25 is surrounded by the right side plate 21b, the left side plate 21c, the front plate 22, and the target plate 24, the BB bullet 12 rolling on the collection plate 25 does not Jumping out from the front opening is prevented.

Therefore, the target device 11 can reliably collect the BB bullets 12 in the limited space within the housing 21 . Thereby, the target device 11 can be miniaturized, and the manufacturing cost can be reduced. For example, the housing 21 of the target device 11 is designed to have a height of about 25.3 cm and a width of about 38.6 cm when viewed from the front side. In addition, the target device 11 can keep the height of the front plate 22 as low as about 4.3 cm, and can collect the BB bullets 12 in the area hidden by the front plate 22 when viewed from the front, and perform signal processing. A substrate 28 can be arranged. By reducing the height of the area (collecting area) required to collect the BB bullets 12 in this way, it is possible to use a notebook personal computer 121 as will be described later with reference to FIG. 10, for example. can be

Further, as shown in FIGS. 2A and 2B, the left side plate 21c is formed with an opening 34 for discharging the BB bullet 12 to the outside. The opening 34 is opened in consideration of the thickness of the collection plate 25, and in a state where the left end of the rear end portion of the collection plate 25 is in contact with the lower surface plate 21d, the lower end of the opening 34 collects. It is formed at a position higher than the bottom plate 21 d by the thickness of the plate 25 . In addition, the end of the opening 34 on the back side is formed so as to substantially match the surface of the target plate 24 facing the front side.

The opening 34 is formed in this way, and the BB bullet 12 that rolls toward the back side and the left side along the inclination of the collecting plate 25 is ejected from the opening 34, and is discharged from the opening 34 as described above with reference to FIG. As shown, it passes through the outlet nozzle 26 and is recovered in the recovery case 13 .

As shown in FIGS. 2A and 2C, the front end of the plate member 31 is bent downward, and the plate member 31 bends due to this bending shape. is prevented from occurring. Further, as shown in FIG. 2A, the lower left rear end of the plate member 31 is arranged so as to abut on the lower surface plate 21d, and the target plate 24 is fixed so as to form an inclination angle of 10° with respect to the vertical. be.

Next, the detailed configuration of the target device 11 will be described with reference to FIGS. 3 to 6. FIG.

3 shows a front view of the target device 11, FIG. 4 shows a left side view of the target device 11, and FIG. 5 shows a right side view of the target device 11. As shown in FIG. 6 shows a view taken along line A--A in FIG.

As shown in FIGS. 3 to 6 , in the target device 11 , the target plate 24 is planarly mounted inside the housing 21 using fixing members 41 a to 41 d that fix four sides of the target plate 24 .

The fixing member 41a is attached to the inner surface of the top plate 21a so as to extend in the left-right direction, and the fixing member 41b is attached to the inner surface of the right side plate 21b so as to extend along the inclination angle of the target plate 24. The fixing member 41c is attached to the inner surface of the left side plate 21c so as to extend along the inclination angle of the target plate 24, and the fixing member 41d is attached to the inner surface of the lower surface plate 21d so as to extend in the left-right direction.

For example, as shown in FIG. 5, two screw holes are formed in the fixing member 41b. It is attached. In addition, as shown in FIG. 5, a connector 43 for connecting a signal cable to be connected to the signal processing board 28 is arranged on the right side plate 21b.

In addition, as shown in FIG. 4, two screw holes are formed in the fixing member 41c, and the fixing member 41c is attached to the inner surface of the left side plate 21c using screws from the outside of the left side plate 21c. It is attached. Similarly, the fixing members 41a and 41d are also formed with screw holes (not shown), and are attached to the upper plate 21a and the lower plate 21d from the outside using screws.

The upper side of the target plate 24 is fixed to the fixing member 41a from the front of the housing 21 using screws. Similarly, the right side of the target plate 24 is fixed to the fixing member 41b using screws from the front of the housing 21, and the left side of the target plate 24 is fixed to the fixing member 41c from the front of the housing 21 by screws. is fixed using Further, the lower side of the target plate 24 is fixed to the fixing member 41d from the rear of the housing 21 using screws.

Further, in the target device 11, the front end portion of the upper plate 21a is bent to form an inwardly inclined surface, thereby forming a bent portion 42a at the front end of the upper plate 21a. The bent portion 42a of the upper plate 21a is formed, for example, so that the fixing member 41a is hidden when the target device 11 is viewed from the front.

Similarly, the front end portion of the right side plate 21b is bent inward to form an inclined surface, thereby forming a bent portion 42b at the front end of the right side plate 21b so that the fixing member 41b is hidden when viewed from the front. be. Further, the front end portion of the left side plate 21c is bent to form an inwardly inclined surface, thereby forming a bent portion 42c at the front end of the left side plate 21c so that the fixing member 41c is hidden when viewed from the front. .

In this way, in the target device 11, the bent portions 42a to 42c are formed on the upper side and the left and right sides of the front opening of the housing 21, so that the BB bullet 12 can be directly attached to the fixing members 41a to 41c. can be avoided from colliding. In addition, the bent portions 42a to 42c form an inclined surface toward the inside of the housing 21, and when the BB bullet 12 collides with the bent portions 42a to 42c, the BB bullet 12 is reflected toward the inside of the housing 21. , and the BB bullet 12 can be recovered by the target device 11 .

As described above, the target device 11 is arranged such that the four sides of the target plate 24 are fixed by the fixing members 41 a to 41 d and the target plate 24 is stretched in the space inside the housing 21 . The structure is such that the target plate 24 bends when the BB bullet 12 collides with it. Thereby, in the target device 11 , the kinetic energy of the BB bullet 12 can be effectively absorbed by the target plate 24 . Furthermore, as described above, by arranging the collection plate 25 below the target plate 24 on the front side, the target device 11 can reliably collect the BB bullets 12 in a minimum space.

Next, the acoustic sensor 27 will be described with reference to FIG.

As shown in FIG. 7, the acoustic sensor 27 is fixed to one end of the substrate 51, and the other end of the substrate 51 is connected to a cable (not shown) for transmitting acoustic signals to the signal processing substrate 28. connector 52 is fixed. The substrate 51 is fixed to the housing 21 via the spacer 54 using two screws 55-1 and 55-2 and two nuts 56-1 and 56-2.

A sensitivity adjusting damping layer 53 composed of a film having a predetermined thickness is attached to the acoustic sensor 27 . By attaching the sensitivity adjustment damping layer 53 to the acoustic sensor 27 , the sensitivity of the acoustic sensor 27 can be adjusted by attenuating the impact sound reaching the acoustic sensor 27 .

Therefore, in the target device 11, the volume of the impact sound generated when the BB bullet 12 hits the target plate 24 is within the range of volume detectable by the acoustic sensor 27. By adjusting the thickness, the acoustic sensor 27 can reliably detect the impact sound. For example, the thickness of the sensitivity adjustment damping layer 53 is adjusted so that the average level of the impact sound when the BB bullet 12 hits the center of the target plate 24 is at the center of the sound volume range that can be detected by the acoustic sensor 27. By adjusting, the impact sound can be detected better. As a result, the target device 11 can reliably detect the impact sound with the acoustic sensor 27, and can output a detection signal capable of more accurately detecting the impact position, impact speed, and the like.

Next, referring to FIG. 8, the outlet nozzle 26 will be described.

The discharge port nozzle 26 is formed, for example, by bending an iron plate having a thickness of 0.6 mm, and is formed into a rectangular cylindrical shape having an inner dimension approximately equal to that of the opening 34 formed in the left side plate 21c.
The end on the side where the outlet nozzle 26 is attached to the left side plate 21c opens in the lengthwise direction of the outlet nozzle 26, and the opposite end has a downward opening toward the tip. An inclined surface 26a is formed, and an opening 26b is formed in the lower surface of the outlet nozzle 26 on the end side thereof.

Therefore, the BB bullet 12 that has passed through the opening 34 of the left side plate 21c passes through the cylindrical outlet nozzle 26 and is reflected downward by the inclined surface 26a, as indicated by the dashed line in FIG. Then, it is discharged from the opening 26b.

Thus, in the target device 11, by providing the outlet nozzle 26, for example, even if the force of the BB bullet 12 is not sufficiently decelerated by the time it passes through the opening 34, it is reflected on the inclined surface 26a. Since it faces downward, the BB bullet 12 can be reliably recovered by the recovery case 13. - 特許庁

Next, FIG. 9 is a diagram showing a first configuration example of a target system including the target device 11. As shown in FIG.

As shown in FIG. 9, the target system 101 is configured with an external monitor 112 that displays a screen similar to that of the personal computer 111 and is arranged on the back side of the target device 11 . A signal cable 113 can be connected to a connector 43 arranged on the right side plate 21 b of the target device 11 , and the personal computer 111 and the target device 11 are connected via the signal cable 113 . Also, the personal computer 111 and the external monitor 112 are connected via a video cable 114 .

In addition, the target device 11 is attached with a plurality of legs 116 having adjusters that can adjust the arrangement position of the target device 11 in the height direction. 112 are arranged so as to have a height corresponding to the position of the screen. In this way, the target device 11 is lifted from the plane on which the external monitor 112 is placed by the plurality of legs 116, and the BB bullet 12 is prevented from entering the space below the target device 11. A protective plate 117 is attached to the front leg 116 of the target device 11 .

A target image 115, which is the target for firing the BB bullet 12, is displayed on the external monitor 112, and the target image 115 is viewed from the front side of the target device 11 through the transparent target plate 24 and the back plate 23. It is made visible.

In the display example of FIG. 9, the external monitor 112 displays a scoreboard on which shooting results such as operations and scores are posted on the right side of the target image 115, and the user can largely look away from the target image 115 during shooting. It is possible to check the shooting result without having to check the shooting result. Note that, for example, it is possible to hide what the user does not need on the external monitor 112 or to display the target image 115 over the entire external monitor 112 . In addition, for a moving target in which a small target image is displayed while moving, it is preferable that the target image moves over the entire screen of the external monitor 112 so that the target image moves around as wide a range as possible.

In the target system 101, acoustic signals output from the acoustic sensors 27-1 to 27-4 of the target device 11 are processed by the signal processing board 28 and supplied to the personal computer 111 as detection signals. The personal computer 111 performs calculations based on detection signals supplied from the signal processing board 28 by executing shooting application software. For example, the personal computer 111 stores the impact position, which is the position on the target plate 24 where the BB bullet 12 impacted, the impact velocity, which is the speed of the BB bullet 12 when impacting the target plate 24, and the The energy of the BB bullet 12 at the time is calculated.

For example, the personal computer 111 calculates the impact position of the BB bullet on the target plate 24 based on the impact sound detection time signal supplied as the detection signal from the signal processing board 28 . The personal computer 111 also calculates the velocity and energy of the BB bullet when it hits the target plate 24 based on the peak hold signal supplied as the detection signal from the signal processing board 28 . Then, the personal computer 111 displays an impact mark (see FIG. 11) indicating the location where the BB bullet 12 has impacted, corresponding to the impact position in the target image 115 displayed on the external monitor 112, each time an impact is detected. do. In addition, the personal computer 111 displays the score based on the impact position, impact speed and energy of the BB bullet 12, and the like on a scoreboard on the right side of the target image 115 on the external monitor 112. FIG. Also, the scoreboard displayed on the external monitor 112 may display only the elapsed time and the score.

In this way, the target system 101 displays a bullet mark on the target image 115 each time a target is shot. Aim correction can be done naturally. Further, in the target system 101, by displaying the score based on the impact position, the impact speed and energy of the BB bullet 12, and the like on the external monitor 112, user convenience can be further enhanced. Alternatively, only one of the bullet velocity and the energy may be calculated and displayed.

Next, FIG. 10 is a diagram showing a second configuration example of the target system including the target device 11. As shown in FIG.

As shown in FIG. 10, the target system 101A has a notebook personal computer 121 with a monitor unit 122 arranged on the back side of the target device 11 and a keyboard unit 123 of the notebook personal computer 121 arranged below the target device 11. consists of A signal cable (not shown) can be connected to a connector 43 arranged on the right side plate 21b of the target device 11, and the notebook personal computer 121 and the target device 11 are connected via the signal cable. Also, in the target system 101A, a leg portion 118 extending forward is used so that the protective plate 117 can be placed in front of the keyboard portion 123 of the notebook personal computer 121 .

Also in the target system 101A, similarly to the target system 101 of FIG. It can be performed. Then, on the monitor unit 122 of the notebook personal computer 121, a bullet impact mark is displayed at the bullet impact position in the target image 115, a score based on the bullet impact position, and the impact speed and energy of the BB bullet 12 are displayed. can be

In the display example of FIG. 10 , the monitor unit 122 displays a scoreboard on which shooting results such as operations and scores are posted on the right side of the target image 115. For example, the scoreboard is hidden, The target image 115 can be displayed on the entire monitor section 122 . In this case, only the scoreboard can be displayed in an independent sub-window in order to avoid troubles with operations and score confirmation. For example, by displaying the scoreboard on a sub-monitor, a tablet PC, a smartphone, or the like, the user can check the shooting results at hand, thereby improving convenience.

In addition, for example, since the target image 115 is displayed large enough to occupy more than half of the monitor unit 122, the target system 101A can be separated from the target system 101A within an operable distance (for example, about 10 m) using a wireless mouse or the like. can be operated from any position. Specifically, it is possible to adopt an operation in which the competition is started by left-clicking the target image 115, and the competition is stopped by left-clicking the target image 115 again after the competition has started. Further, when the target image 115 is right-clicked, the target image 115 is displayed on the full screen of the monitor unit 122, and when the target image 115 is right-clicked again in the state of the full screen display, the target image 115 is reduced and a scoreboard or the like is displayed. It is possible to adopt an operation for setting the display state (display state as shown in FIG. 10). Alternatively, when it is detected that the BB bullet 12 has collided with the target plate 24 while waiting for the start of the competition, an operation of starting the competition may be adopted.

In the target systems 101 and 101A configured as described above, the acoustic sensors 27-1 to 27-4 are arranged in the closed space 29 of the target device 11. FIG. Therefore, the personal computer 111 and the notebook personal computer 121 can more accurately calculate the impact position and impact velocity of the BB bullet 12 using the detection signal output from the signal processing board 28 of the target device 11. can.

In this embodiment, the configuration in which the external monitor 112 in FIG. 9 and the monitor unit 122 in FIG. The signal processing board 28 can also be used, and the target device 11 can be operated independently without being connected to a personal computer 111 or the like. The display section can be configured to be mounted on the housing 21 instead of the rear plate 23 . Alternatively, the display unit may be fixed behind the rear plate 23 while the rear plate 23 is provided. Further, for example, by removing the back plate 23 from the target device 11 and arranging the display unit so as to be in contact with the back surface of the target device 11, the closed space 29 is constructed using the display unit. may As described above, the method of installing the display unit on the target device 11 is not limited to the above-described embodiment.

In addition, the target device 11 may be configured such that a tablet-type personal computer is installed (inside or attached to) the back side of the housing 21, and the target image 115 and the scoreboard are displayed on the tablet-type personal computer. can be done. In this case, for example, it is possible to realize a target system that can operate by the target device 11 alone, instead of the configuration that requires connection with the personal computer 111 as shown in FIG.

With the target device 11 configured to be able to operate independently, the user uses a smartphone, a glasses-type terminal, a dedicated remote controller, a personal computer, etc., and wirelessly using a wireless LAN (Local Area Network) or the like. operation can be performed. This makes it possible to further improve convenience when using the target device 11 .

In addition, the target system 101 includes an output unit such as a speaker that outputs arbitrary sounds (for example, impact sounds, breaking sounds, screams, music, etc.) according to at least one of impact point, impact velocity, and energy. be able to. Further, those sounds can be output from the output unit at a volume based on at least one of the velocity of impact and/or energy. As a result, the playability of shooting using the target system 101 can be enhanced. In addition, it is possible to read aloud the score corresponding to the point of impact. This allows the user to know the score obtained without looking away from the target image 115 .

Furthermore, the display method for displaying the target image 115 is not limited to a display unit such as a liquid crystal panel. For example, the back plate 23 or the target plate 24 may be made of an opaque plate, coated with white paint, covered with white cloth, or placed in front of or behind the back plate 23. Any method of projecting the target image 115 can be employed.

Here, with reference to FIG. 11, the detection results of the impact positions in the target systems 101 and 101A will be described.

FIG. 11A shows a target image 115A representing the calculation result of the impact positions when the back plate 23 is fixed to the housing 21 and the acoustic sensors 27-1 to 27-4 are arranged in a closed space 29. It is shown. In FIG. 11B, the rear plate 23 is removed from the housing 21 and, for example, the acoustic sensor 27-1 is placed in an open space in which the rear plate 23 is arranged at a position separated from the housing 21 by 20 mm. A target image 115B representing the detection result of the impact positions in a state where 27-4 are arranged is shown.

11A and 11B, for example, the soft air gun is fixed so as to maintain a predetermined height, and the target device 11 is sequentially fixed at regular intervals (eg, 1 cm intervals) from left to right. , and the landing position when the BB bullet 12 is fired toward the target device 11. As shown in FIG.
For example, in the display example of A of FIG. 11, the first to 33rd impact positions are indicated by impact marks with circles to which respective numbers are attached. In addition, in the display example of B of FIG. 11, the 4th to 28th impact positions are indicated by impact marks with circles to which respective numbers are attached.

As shown in FIG. 11A, in a state where the acoustic sensors 27-1 to 27-4 are arranged in the closed space 29, the impact positions are horizontal at a substantially constant height over the entire target image 115A. As a result, they line up in a row in the direction. That is, as a result of firing the BB bullet 12 from a soft air gun fixed so as to maintain a predetermined height, the impact position is calculated within a predetermined error range so as to have a constant height on the target image 115A. there is

On the other hand, as shown in FIG. 11B, when the acoustic sensors 27-1 to 27-4 are arranged in an open space with a gap of 20 mm between the housing 21 and the back plate 23, As a result, the impact position is generally uneven in the vertical direction. In particular, in the target image 115B, while it was possible to detect the 4th to 27th impacts, it was not possible to accurately detect the impacts near the left and right ends. 1 to 33 hits could not be detected, and the 28th hit was erroneously detected.

For example, in the target systems 101 and 101A, the BB bullets 12 are repeatedly shot at predetermined intervals (for example, 1 cm intervals) over the entire surface of the target plate 24, and by referring to the database of measurement data obtained as a result, Calculations are performed to measure the impact position and impact velocity of the BB bullet 12 . Therefore, it is important to ensure the reproducibility of the impact sound when obtaining measurement data and the impact sound when measuring the impact position and impact speed of the BB bullet 12 . Therefore, in the target device 11, better reproducibility can be obtained by arranging the acoustic sensors 27-1 to 27-4 in a closed space 29 in which the acoustic environment is constant. .

As described above, the target systems 101 and 101A are configured such that the acoustic sensors 27-1 to 27-4 are arranged in the open space by arranging the acoustic sensors 27-1 to 27-4 in the closed space 29. As compared with the configuration described above, it is possible to improve the measurement accuracy of the impact position.
Similarly, with respect to the bullet velocity, the measurement accuracy can be improved by arranging the acoustic sensors 27-1 to 27-4 in the closed space 29. FIG.

By the way, since the speed of sound changes according to the air temperature, the target device 11 can be configured to include a temperature sensor. In this configuration, the signal processing board 28 corrects the sound velocity based on the temperature information detected by the temperature sensor, and calculates the impact point using the corrected sound velocity, thereby obtaining the impact position with higher accuracy. be able to. Here, by arranging the temperature sensor included in the target device 11 in the closed space 29 in the same way as the acoustic sensors 27-1 to 27-4, for example, the speed of sound in the space 29 can be accurately used, It is possible to accurately measure the impact positions based on the impact sounds detected by the acoustic sensors 27-1 to 27-4. Further, for example, when the sensitivities of the acoustic sensors 27-1 through 27-4 are affected by temperature, the amplification degrees of the acoustic sensors 27-1 through 27-4 are corrected based on the temperature information detected by the temperature sensors. By doing so, it is possible to further improve the measurement accuracy of the impact position, impact velocity, energy, and the like.

In the present embodiment described above, in the target device 11, the target plate 24 is fixed so as to be tilted with respect to the vertical, but the target plate 24 does not necessarily have to be fixed tilted. For example, by inclining the target plate 24, the BB bullet 12 is reflected downward, and the BB bullet 12 can be easily collected. On the other hand, for example, even if the target plate 24 is fixed vertically, the BB bullet 12 reflected by the target plate 24 is sufficiently secured to the extent that the BB bullet 12 does not fly out to the outside. Thus, the BB bullet 12 can be reliably collected. Furthermore, in the present embodiment, the configuration using four acoustic sensors 27-1 to 27-4 has been described, but the number of acoustic sensors 27 is not limited to four. For example, 3, 6, or 8 acoustic sensors 27 can be used according to the size or shape of the target device 11 so that the impact position can be measured appropriately.

In this specification, the term "system" refers to an entire device composed of a plurality of devices. Moreover, the embodiments of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

For example, the present invention is not limited to a targeting system 101 targeted by a BB bullet 12 fired by a soft air gun, but any game or game of hitting a target with a flying object, specifically darts. , blow darts and other targeting systems. In this case, the hit position of the dart or the blowgun can be detected accurately, and the dart or the blowgun can be displayed at the hit position on the target image instead of the bullet mark. Also, naturally, it is necessary to round the tip so that the target plate 24 is not pierced by a dart or a blow dart instead of a BB bullet. When such a flying object is used, instead of the collecting plate 25, a collecting portion such as a basket for collecting the flying object bounced off the target plate 24 can be provided.

Furthermore, by increasing the strength of the target plate 24, the present invention can also be applied to a target system for real guns (air guns, etc.) that have higher impact energy than toy guns (soft air guns).

11 target device, 12 BB bullet, 13 recovery case, 21 housing, 21a top plate, 21b right side plate, 21c left side plate, 21d bottom plate, 22 front plate, 23 rear plate, 24 target plate, 25 collection plate, 26 Outlet nozzle, 27 Acoustic sensor, 28 Signal processing board, 31 Plate member, 32 and 33 Shock absorber, 34 Opening

Claims (19)

a target plate to be targeted by the flying object;
When the target plate made of a soft material that suppresses the repulsion of the flying object receives the collision of the flying object by bending, the target can vibrate like a film stretched over an opening. a housing for fixing the plate;
a detection unit that is arranged in a space surrounded by at least the target plate and the housing and that detects an impact sound generated when the flying object collides with the target plate;
A target system in which a front opening of the space is covered by the target plate, and a plate-shaped transparent member is arranged in a rear opening. a target plate to be targeted by the flying object;
When the target plate made of a soft material that suppresses the repulsion of the flying object receives the collision of the flying object by bending, the target can vibrate like a film stretched over an opening. a housing for fixing the plate;
a detection unit that is arranged in a space surrounded by at least the target plate and the housing and that detects an impact sound generated when the flying object collides with the target plate;
A front opening of the space is covered with the target plate, and a rear opening displays a target image, which is a target when the flying object is fired, and also displays an impact position with respect to the target image. a target system in which a display unit for displaying an image representing the landing of the flying object is arranged. 3. The targeting system of claim 2, wherein the display is internal or fixed within the targeting device. The target system according to claim 2, wherein a transparent plate-shaped member is attached to the housing on the front side of the display unit. A sound signal output corresponding to the impact sound detected by the detection unit is subjected to signal processing to determine the position at which the flying object hits the target plate, or the position at which the flying object hits the target plate. 5. The target system of any one of claims 2 to 4, further comprising a signal processor that outputs detection signals used to calculate either velocity or energy. 6. The target system of claim 5, further comprising an output unit that outputs audio at a volume based on at least one of velocity and energy calculated using the detection signal. The target system according to claim 5, wherein the image representing the impact of the flying object is an impact mark indicating the impact position. 6. The target system according to claim 5, wherein the display unit displays an impact mark indicating the impact position, or the velocity or the energy. a notebook personal computer that executes software for calculating either the impact position, or the velocity or the energy based on the detection signal;
6. The target system according to claim 5, wherein the monitor section of the notebook personal computer is arranged on the back side of the target device, and the keyboard section of the notebook personal computer is arranged below the target device. The target system according to claim 9, wherein the monitor unit is used as the display unit, and the target image is displayed so as to be visible through the transparent target plate. Instead of the display unit,
An impact position at which the flying object hits the target plate, or the flying object, based on a detection signal obtained by subjecting an acoustic signal output in response to the impact sound detected by the detection unit to predetermined signal processing. Execute software that calculates either the velocity or energy when the hits the target plate,
A tablet-type personal computer displays a target image that is a target when the flying object is fired, and displays an image representing the impact of the flying object according to the impact position with respect to the target image. 3. The targeting system of claim 2, disposed in a. 3. The target system according to claim 2, wherein a right side plate and a left side plate that constitute left and right side surfaces of the housing are also provided in front of the target plate. a target plate to be targeted by the flying object;
When the target plate made of a soft material that suppresses the repulsion of the flying object receives the collision of the flying object by bending, the target can vibrate like a film stretched over an opening. a housing for fixing the plate;
a detection unit disposed in a space surrounded by at least the target plate and the housing and configured to detect an impact sound generated when the flying object collides with the target plate;
a collecting unit arranged in a space on the front side of the target plate and below the opening in front of the housing, for collecting the flying object reflected by the target plate;
A target system in which a space surrounded by the target plate and the housing has a front opening covered with the target plate and a plate-like member arranged in a rear opening. 14. The targeting system of claim 13, wherein the collection portion is slanted downward toward either the left or right side or downward toward the back. A display unit for displaying a target image as a target when the flying object is fired, and displaying an image representing the impact of the flying object according to the impact position with respect to the target image, in place of the plate-shaped member. 14. The targeting system of claim 13, wherein: a target plate to be targeted by the flying object;
When the target plate made of a soft material that suppresses the repulsion of the flying object receives the collision of the flying object by bending, the target can vibrate like a film stretched over an opening. a housing for fixing the plate;
a detection unit that is arranged in a space surrounded by at least the target plate and the housing and that detects an impact sound generated when the flying object collides with the target plate;
The space has a front opening covered with the target plate and a rear opening having a plate-shaped member,
A target system in which an attenuation layer that attenuates the impact sound and delivers it to the detection unit is attached to the detection units arranged at a plurality of locations on the back side of the target plate. 17. The target system according to claim 16, wherein a connector for connecting a cable for transmitting an acoustic signal output from the detection unit is fixed to the other end of the substrate on which the detection unit is mounted. 18. The target system of claim 17, wherein the substrate is fixed in at least two places to a housing that fixes the target plate. A display unit for displaying a target image as a target when the flying object is fired, and displaying an image representing the impact of the flying object according to the impact position with respect to the target image, in place of the plate-shaped member. 17. The targeting system of claim 16, arranged .

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