Target System

Abstract

To provide a target system capable of detecting an impact position or an impact velocity more accurately.SOLUTION: The target device comprises a target plate to be a target of a BB bullet fired by a soft air gun, an enclosure for fixing the target plate to allow a vibration like a membrane at an opening when the target plate formed by a soft member for restricting a reaction of the BB bullet receives an impact of the BB bullet by deflecting and a detection part arranged in closed space enclosed at least by the target plate and the enclosure for detecting an impact sound generated when the BB bullet collides with the target plate. Further, the closed space is closed by that a front opening is covered by the target plate and a back opening is covered by closing means in a plate shape. The present technology can be applied to the target device capable of collecting the BB bullet fired by the soft air gun or the like.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a targeting system, and more particularly to a targeting system that is capable of detecting the impact position, impact speed, and the like more accurately. [Background technology]

[0002] Conventionally, shooting competitions have been held in which participants compete to determine the precision of the impact position of a plastic bullet (hereinafter referred to as a BB bullet) on a target using a soft air gun, which is a toy gun equipped with a mechanism for firing the BB bullet using low-pressure compressed air, etc. For example, by penetrating a target paper with a target drawn on it with a BB bullet, the impact position on the target paper can be identified.

[0003] Patent Document 1 also discloses a device that has microphones attached to the four corners of a transparent sheet that is placed to cover the screen of an image display device, and that calculates the impact position on the transparent sheet by detecting the impact sound when a bullet hits the transparent sheet with the microphones. Also, this device does not have a mechanism for retrieving the bullets. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 8-110196 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the device disclosed in Patent Document 1, the microphones attached to the four corners of the transparent sheet detect the sound of a bullet being fired from the toy gun, making it difficult to accurately calculate the impact position. In other words, this device is configured so that the microphones are located on the front side of the transparent sheet, and it is not possible to seal the microphones to prevent the detection of the sound of a bullet being fired, making it easy for the microphones to detect the sound of a bullet being fired. This makes it difficult to distinguish between the sound of a bullet being fired from the toy gun and the impact sound of a bullet hitting the transparent sheet, which can lead to malfunctions in which the impact position is detected based on the sound of a bullet being fired.

[0006] The present disclosure has been made in consideration of such circumstances, and aims to prevent malfunctions due to firing sounds, etc., and to more accurately detect the impact position, impact speed, etc. [Means for solving the problem]

[0007] A target system according to one aspect of the present disclosure comprises a target device having a transparent target plate on the rear side of which a target is placed when a flying object is launched, a fixing member for fixing the target plate so that when the target plate, which is formed of a soft member that suppresses the rebound of the flying object, receives the impact of the flying object by bending, it is possible for the target plate to vibrate like a membrane stretched across an opening, and a detection unit that is placed in a space behind the target plate and detects impact sounds generated when the flying object collides with the target plate, and at least the front of the space is covered by the target plate, and the space is surrounded by members on the top, bottom, left and right sides. The back side of the space is closed by a predetermined means. .

[0008] In one aspect of the present disclosure, a target device includes a transparent target plate on the back side of which a target is placed when a flying object is launched, a fixing member that fixes the target plate so that when the target plate, which is formed of a soft member that suppresses the rebound of the flying object, deflects to receive the impact of the flying object, it can vibrate like a membrane stretched across an opening, and a detection unit that is placed in a space behind at least the target plate and detects impact sounds generated when the flying object collides with the target plate, and at least the front of the space is covered by the target plate, and the space is surrounded by members on the top, bottom, left and right sides. The back side of the space is closed by a predetermined means. . [Effects of the Invention]

[0009] According to one aspect of the present disclosure, malfunctions due to firing sounds and the like can be prevented, and the impact position, impact speed, and the like can be detected more accurately. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view showing a configuration example of an embodiment of a target device to which the present technology is applied; [Figure 2] FIG. 2 is a diagram illustrating the structure of a collection plate. [Figure 3] FIG. 2 is a front view of the target device. [Figure 4] FIG. 1 is a left side view of the target device. [Figure 5] FIG. 10 is a right side view of the target device. [Figure 6] 6 is a view of the target device taken along the line AA in FIG. 5. [Figure 7] FIG. 1 is a diagram illustrating an acoustic sensor. [Figure 8] FIG. 2 is a diagram illustrating a discharge outlet nozzle. [Figure 9] FIG. 1 is a diagram illustrating a first configuration example of a target system including a target device. [Figure 10] FIG. 10 is a diagram illustrating a second configuration example of a target system including a target device. [Figure 11] FIG. 10 is a diagram showing the detection result of the impact position in the target system. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, specific embodiments to which the present technology is applied will be described in detail with reference to the drawings.

[0012] FIG. 1 is a perspective view showing a configuration example of an embodiment of a target device to which the present technology is applied.

[0013] The target device 11 shown in Fig. 1 has a recovery mechanism that recovers BB bullets 12 fired at the target device 11 by a soft air gun, and a function that outputs detection signals to detect the impact position and impact speed of the BB bullets 12. In Fig. 1, the path of the BB bullets 12 is indicated by dashed arrows, and the side from which the BB bullets 12 approach the target device 11 (the lower right side of Fig. 1) is the front side of the target device 11, and the opposite side (the upper left side of Fig. 1) is the back side of the target device 11.

[0014] Additionally, on the rear side of target device 11, target paper that serves as a target when BB bullets 12 are fired is disposed, as well as a display unit (such as an external monitor 112 in FIG. 9 or a monitor unit 122 in FIG. 10, which will be described later) that displays a target image similar to the target paper. BB bullets 12 fired at the target through target device 11 bounce and roll inside target device 11, and then are collected in collection case 13, which is located on the left side when viewing target device 11 from the front.

[0015] As shown in FIG. 1, the target device 11 comprises 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 processing board .

[0016] The housing 21 has a rectangular cylindrical shape with top and bottom surfaces and left and right side surfaces formed by assembling an upper plate 21a, a right plate 21b, a left plate 21c, and a lower plate 21d, and is open at the front and back. The upper plate 21a is a plate-like member that forms the upper surface of the housing 21, and the right plate 21b is a plate-like member that forms the right surface of the housing 21. The left plate 21c is a plate-like member that forms the left surface of the housing 21, and the lower plate 21d is a plate-like member that forms the lower surface of the housing 21. By assembling the upper plate 21a, right plate 21b, left plate 21c, and lower plate 21d in this way, the housing 21 can store the target device 11 in a small space, for example.

[0017] The front panel 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.

[0018] The back panel 23 is a transparent plate-like member attached to the housing 21 so as to cover the entire rear opening of the housing 21.

[0019] The target plate 24 is, for example, a transparent plate-like member that receives impacts from BB bullets 12 fired by a soft air gun toward a target located on the rear side of the target device 11. For example, the target plate 24 is made of a material that has a predetermined degree of plasticity against impact (a material that recovers slowly), specifically, a soft vinyl chloride resin with a thickness of 2.0 mm. By using such a material, the target plate 24 slowly returns to its original shape when receiving impacts from BB bullets 12, thereby suppressing the repulsion of the BB bullets 12. The target plate 24 is fixed at its top, bottom, and left and right ends to the inner surface of the housing 21 so as to be entirely flat, i.e., to prevent bending. The target plate 24 is also placed inside the housing 21 so as to have an inclination angle from the front side to the rear side as it moves from the top to the bottom of the housing 21 (for example, an inclination angle of approximately 10° forward from the vertical as shown in FIG. 2A).

[0020] The collection plate 25 is located inside the housing 21 in the space in front of the target plate 24, and below the lower end of the front opening of the housing 21 (the upper end surface of the front plate 22), and is fixed so that it slopes downward overall toward the rear side and also downward toward the left side.

[0021] The discharge outlet nozzle 26 is attached to the outer surface of the left side panel 21c of the housing 21 so as to cover the discharge outlet (discharge outlet 34 in A of Figure 2, which will be described later) formed in the left side panel 21c, and guides the BB bullets 12 that pass through the discharge outlet toward the recovery case 13.

[0022] The acoustic sensors 27-1 to 27-4 detect impact sounds, such as those generated by the vibration of the target board 24 when a BB bullet 12 hits the target board 24, and supply acoustic signals corresponding to changes in the amplitude of the detected impact sounds to the signal processing board 28. As shown in FIG. 1 , the acoustic sensors 27-1 to 27-4 are fixed to the inside of the housing 21 near the rear side of the target board 24 and near the four corners of the target board 24. For example, the acoustic sensor 27-1 is located near the upper end of the inward-facing surface of the left side panel 21c, and the acoustic sensor 27-2 is located near the upper end of the inward-facing surface of the right side panel 21b. The acoustic sensor 27-3 is located near the lower end of the inward-facing surface of the left side panel 21c, and the acoustic sensor 27-4 is located near the lower end of the inward-facing surface of the right side panel 21b.

[0023] Here, the space 29 provided on the back side of the target plate 24 on which the acoustic sensors 27-1 to 27-4 are arranged is closed on the front side by the target plate 24, closed on the top and bottom and left and right sides by the housing 21, and closed on the back side by the back plate 23. In other words, 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.

[0024] The signal processing board 28 is disposed in the space between the lower plate 21d and the collection plate 25. The signal processing board 28 processes the acoustic signals output from the acoustic sensors 27-1 to 27-4 when the BB bullets 12 hit the target plate 24, and outputs detection signals for detecting the impact position and impact speed of the BB bullets 12 when they hit the target plate 24.

[0025] For example, the signal processing board 28 amplifies and full-wave rectifies the acoustic signal, and outputs, as detection signals, a peak-hold signal that holds the peak value of the amplitude, and an impact noise detection time signal that indicates the timing at which a signal obtained by integrating the peak-hold signal exceeds a reference value. The signal processing board 28 then supplies the detection signals to a personal computer 111 shown in Fig. 9 or a notebook personal computer 121 shown in Fig. 10, which will be described later.

[0026] As described above, target device 11 is configured, and BB bullets 12 fired toward target device 11 collide with target plate 24, as indicated by the dashed-dotted line in FIG. 1. As described above, target plate 24 has a predetermined degree of plasticity against impact, and absorbs the impact of BB bullets 12 by causing an area of ​​target plate 24 to cave in, centered on the point of impact, in a very shallow, cone-shaped depression corresponding to the impact force. Hereinafter, this depression of shock-absorbing material 33 (see FIG. 2, described later) of target plate 24 and collection plate 25 will be referred to as "deflection." After absorbing the impact of the impact by target plate 24, BB bullets 12 fall toward collection plate 25 and roll toward the rear and left sides of target device 11 according to the inclination of collection plate 25. Then, they are ejected from the outlet in left panel 21c, pass through outlet nozzle 26, and are collected in collection case 13.

[0027] In this way, the target device 11 is configured so that the target plate 24 can absorb the impact of the BB bullets 12 and the BB bullets 12 fall toward the collection plate 25, so that the BB bullets 12 do not fly out of the housing 21 and can be reliably collected.

[0028] As described above, the target device 11 has the acoustic sensors 27-1 to 27-4 arranged in the closed space 29, and the acoustic environment in the closed space 29 is stationary. Therefore, in the target device 11, the acoustic sensors 27-1 to 27-4 can detect impact sounds with higher reproducibility, that is, if the impact position and impact speed of the BB bullet 12 are the same, they can detect almost the same impact sounds.

[0029] That is, target device 11 is configured such that the rear opening is covered by back plate 23 and the front opening is covered by target plate 24 in closed space 29. As a result, in target device 11, a reproducible impact sound is generated by the vibrations caused when BB bullets 12 collide with target plate 24, just like musical instruments (such as drums and timpani) that produce sound by the vibration of a membrane stretched across an opening.

[0030] Therefore, for example, acoustic sensors 27-1 to 27-4 can always detect the same impact sound under the same impact conditions (impact position, impact speed, and bullet weight) when a BB bullet 12 hits a predetermined position on target board 24. This makes it possible to very accurately detect the impact position, which is the position on target board 24 where the BB bullet 12 hits, the impact speed, which is the speed of the BB bullet 12 when it hits target board 24 (or the energy of the BB bullet 12 when it hits target board 24), and the like, based on the acoustic signals output from acoustic sensors 27-1 to 27-4.

[0031] Furthermore, in the target device 11, by arranging the acoustic sensors 27-1 to 27-4 in the closed space 29, it is possible to prevent the acoustic sensors 27-1 to 27-4 from detecting, for example, the firing sound of a BB bullet 12 fired by a soft air gun. For example, if the acoustic sensors 27-1 to 27-4 were arranged in an open space, the acoustic sensors 27-1 to 27-4 would detect the firing sound of the soft air gun. In this case, processing is required to remove the firing sound from the acoustic signals output from the acoustic sensors 27-1 to 27-4, making it difficult to accurately calculate the impact position, impact speed, etc.

[0032] In contrast, the target device 11 is configured so that the acoustic sensors 27-1 to 27-4 have difficulty detecting the firing sound of a soft air gun, eliminating the need for processing to remove the firing sound from the acoustic signals output by the acoustic sensors 27-1 to 27-4. Therefore, the impact position and impact speed of the BB bullet 12 can be accurately calculated based on the acoustic signals output by the acoustic sensors 27-1 to 27-4.

[0033] Furthermore, by using the target board 24, which functions like the membrane of a musical instrument, the target device 11 allows the acoustic sensors 27-1 to 27-4 to detect impact sounds more accurately than in a configuration using a more rigid target board such as a polycarbonate board or acrylic board. That is, in a configuration using a polycarbonate board or acrylic board as the target board, vibrations transmitted through the target board itself may be detected, making accurate detection of impact sounds difficult. In contrast, in the target device 11, vibrations transmitted through the target board 24 itself are attenuated, so the acoustic sensors 27-1 to 27-4 can accurately detect impact sounds transmitted through the air by the vibration of the target board 24.

[0034] Furthermore, the target device 11 can achieve the effect of reducing impact noise (becoming quieter) compared to configurations using more rigid polycarbonate or acrylic plates for the target board. However, there is a concern that the reduction in impact noise will result in a relatively louder firing sound, which may increase malfunctions due to the firing sound. However, as described above, the target device 11 is configured such that the acoustic sensors 27-1 to 27-4 are arranged in the closed space 29, thereby not only blocking disturbances such as firing sounds but also measuring the sound pressure that increases threefold due to the impact sound being confined in the closed space 29. Therefore, for example, when comparing the disturbance blocking effect to prevent malfunctions due to disturbances such as firing sounds with the device disclosed in Patent Document 1, it is estimated that the closed space in which the acoustic sensors 27-1 to 27-4 are arranged is approximately three times as effective, and the increase in sound pressure due to the impact sound being confined in the closed space is approximately three times as effective. Overall, a disturbance blocking effect of approximately nine times can be expected. Furthermore, by configuring the acoustic sensors 27-1 to 27-4 to be arranged in a closed space 29, the BB bullets 12 will not collide with the acoustic sensors 27-1 to 27-4, and damage to the acoustic sensors 27-1 to 27-4 due to such collisions will also be avoided.

[0035] Furthermore, in the target device 11, by arranging the acoustic sensors 27-1 to 27-4 in the closed space 29, disturbances due to ambient sounds other than the firing sound of the soft air gun can be eliminated. For example, compared to a configuration in which the back panel 23 is removed from the housing 21 and the acoustic sensors 27-1 to 27-4 are arranged in an open space, the configuration in which the acoustic sensors 27-1 to 27-4 are arranged in the closed space 29 improves the measurement sensitivity of the acoustic sensors 27-1 to 27-4 to measure impact sounds (for example, approximately three times). This improves noise resistance by reducing the gain and reduces the difference in detection values ​​between the acoustic sensors 27-1 to 27-4 depending on the distance from the impact position, thereby improving the measurement accuracy based on acoustic signals. Note that the space 29 only needs to be able to block external sounds to some extent. Unlike an enclosed space completely isolated from the outside, some gaps may be allowed. Of course, it would be more preferable if the space 29 were completely isolated from the outside.

[0036] Incidentally, since it is expected that the BB bullets 12 that fall toward the collection plate 25 after reflecting off the target plate 24 will bounce back to some extent at the collection plate 25, the collection plate 25 is configured to suppress the rebound of the BB bullets 12.

[0037] The structure of the collection plate 25 will be described with reference to FIG.

[0038] Figure 2 shows a schematic configuration example in which the lower part of the target device 11 is enlarged. Figure 2A shows an example of the configuration of the target device 11 seen from the left side, Figure 2B shows an example of the configuration of the target device 11 seen from the front side, and Figure 2C shows an example of the configuration of the target device 11 seen from the right side.

[0039] As shown in FIGS. 2A and 2C, collection plate 25 has a sloped portion that slopes downward at an angle of 6.0° from front panel 22 toward rear panel 23, and a predetermined range (e.g., a range of 10 mm from the rear end) of collection plate 25 near its rear end is flat in the front-to-rear direction. That is, collection plate 25 is formed by bending so that the sloped portion on the front side forms an angle of 6.0° with respect to the predetermined range near its rear end. Furthermore, as shown in FIG. 2B, collection plate 25 is fixed to housing 21 so that it slopes downward at an angle of 2.7° from right panel 21b toward left panel 21c. By providing a portion of collection plate 25 that does not slope forward or backward near its rear end, BB bullets 12 can roll smoothly from right panel 21b toward left panel 21c.

[0040] The collection plate 25 is constructed by laminating shock absorbing materials 32 and 33 made of different materials onto the bent plate member 31. For example, the plate member 31 is made of a thin iron plate having a thickness of 0.6 mm, the shock absorbing material 32 is made of a urethane sponge having a thickness of 3.0 mm, and the shock absorbing material 33 is made of a soft polyvinyl chloride resin having a thickness of 2.0 mm. In this way, for example, by disposing shock absorbing material 32 made of urethane sponge between plate member 31 and shock absorbing material 33, shock absorbing material 33 floats relative to plate member 31, and shock absorbing material 33 flexes to absorb the energy of falling BB bullets 12. Specifically, when a BB bullet 12 of up to about 0.3 J hits shock absorbing material 33 made of soft vinyl chloride resin (hardness #570) with a thickness of 2.0 mm, the dent generated in shock absorbing material 33 is within 3 mm. This ensures that the energy of the BB bullet 12, whose energy has been attenuated by impact with target plate 24, is 0.3 J or less, confirming that collection plate 25 can adequately absorb the impact of the BB bullet 12.

[0041] That is, with this layered structure, the collection plate 25 absorbs the energy of the BBs 12 that bounce off the target plate 24 and fall, preventing the BBs 12 from bouncing back, causing the BBs 12 to roll along the inclination of the collection plate 25. Also, because the collection plate 25 is inclined downward toward the rear side, even if the BBs 12 bounce off the collection plate 25, the BBs 12 will head toward the rear side and will be prevented from flying out through the front opening of the housing 21. Note that the BBs 12 that have lost energy upon impact with the target plate 24 still retain rotation, which can cause the BBs 12 to jump diagonally downward or roll violently on the collection plate 25. On the other hand, the periphery of the collection plate 25 is completely surrounded by the right side plate 21b, the left side plate 21c, the front plate 22, and the target plate 24, so that the BB bullets 12 rolling on the collection plate 25 are prevented from flying out from the front opening.

[0042] Therefore, the target device 11 can reliably collect BB bullets 12 within the limited space within the housing 21. This allows the target device 11 to be miniaturized, resulting in reduced manufacturing costs. For example, the housing 21 of the target device 11 is designed to be approximately 25.3 cm high and 38.6 cm wide when viewed from the front. Furthermore, the height of the front panel 22 of the target device 11 can be reduced to approximately 4.3 cm, allowing the BB bullets 12 to be collected and the signal processing board 28 to be located in an area hidden by the front panel 22 when viewed from the front. Reducing the height of the area required to collect BB bullets 12 (collection area) in this manner enables use with a notebook-type personal computer 121, as described below with reference to FIG. 10 .

[0043] 2A and 2B, an opening 34 for discharging BB bullets 12 to the outside is formed in left side plate 21c. Opening 34 is formed taking into consideration the thickness of collection plate 25, and is formed at a position where the lower end of opening 34 is higher than lower plate 21d by the thickness of collection plate 25 when the left edge of the rear end portion of collection plate 25 is in contact with lower plate 21d. In addition, the rear end of opening 34 is formed so as to substantially coincide with the surface of target plate 24 facing the front side.

[0044] The opening 34 is formed in this manner, and the BB bullets 12 that roll toward the back and left sides according to the inclination of the collection plate 25 are discharged from the opening 34, pass through the discharge nozzle 26, and are collected in the collection case 13, as described above with reference to Figure 1.

[0045] 2A and 2C, the front end of plate member 31 is bent downward, and this bent shape prevents deflection of plate member 31. Also, as shown in Fig. 2A, the lower left rear end of plate member 31 is disposed so as to abut against lower plate 21d, and target plate 24 is fixed at an inclination angle of 10° with respect to the vertical.

[0046] Next, the detailed configuration of the target device 11 will be described with reference to FIGS.

[0047] FIG. 3 shows a front view of the target device 11, FIG. 4 shows a left side view of the target device 11, FIG. 5 shows a right side view of the target device 11, and FIG. 6 shows a view taken along the line AA in FIG. 5.

[0048] As shown in FIGS. 3 to 6, in the target device 11, the target plate 24 is attached in a planar manner inside the housing 21 using fixing members 41a to 41d that fix the four sides of the target plate 24.

[0049] Fixing member 41a is attached to the inner surface of upper plate 21a so as to extend in the left-right direction, and fixing member 41b is attached to the inner surface of right plate 21b so as to extend along the inclination angle of target plate 24. Fixing member 41c is attached to the inner surface of left plate 21c so as to extend along the inclination angle of target plate 24, and fixing member 41d is attached to the inner surface of lower plate 21d so as to extend in the left-right direction.

[0050] For example, as shown in Fig. 5, two screw holes are formed in fixing member 41b, and fixing member 41b is attached to the inner surface of right side plate 21b using screws from the outside of right side plate 21b. Note that, as shown in Fig. 5, connector 43 is disposed on right side plate 21b for connecting a signal cable that is connected to signal processing board 28.

[0051] 4, fixing member 41c has two screw holes formed therein, and fixing member 41c is attached to the inner surface of left side plate 21c from the outside using screws. Similarly, fixing members 41a and 41d also have screw holes (not shown) formed therein, and are attached to upper plate 21a and lower plate 21d from the outside using screws, respectively.

[0052] The upper side of target plate 24 is fixed to fixing member 41a from the front of housing 21 using a screw. Similarly, the right side of target plate 24 is fixed to fixing member 41b from the front of housing 21 using a screw, and the left side of target plate 24 is fixed to fixing member 41c from the front of housing 21 using a screw. Furthermore, the lower side of target plate 24 is fixed to fixing member 41d from the rear of housing 21 using a screw.

[0053] In addition, in the target device 11, the front end portion of the upper plate 21a is bent inward to form an 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 so that the fixing member 41a is hidden when the target device 11 is viewed from the front, for example.

[0054] Similarly, the front end portion of right side panel 21b is bent inward to form a slope, thereby forming bent portion 42b at the front end of right side panel 21b so that fixing member 41b is hidden when viewed from the front. Also, the front end portion of left side panel 21c is bent inward to form a slope, thereby forming bent portion 42c at the front end of left side panel 21c so that fixing member 41c is hidden when viewed from the front.

[0055] In this way, in the target device 11, the formation of the bent portions 42a to 42c on the upper side and on the left and right sides of the front opening of the housing 21 prevents the BB bullets 12 from directly colliding with the fixing members 41a to 41c. In addition, the bent portions 42a to 42c form inclined surfaces facing the inside of the housing 21, so that when the BB bullets 12 collide with the bent portions 42a to 42c, they are reflected back toward the inside of the housing 21, and the BB bullets 12 can be collected in the target device 11.

[0056] As described above, the target device 11 is structured such that the four sides of the target plate 24 are fixed by the fixing members 41a to 41d and the target plate 24 is arranged so as to be stretched in the space within the housing 21, so that the target plate 24 bends when a BB bullet 12 hits the target plate 24. This allows the target device 11 to effectively absorb the kinetic energy of the BB bullet 12 by the target plate 24. Furthermore, as described above, by arranging the collection plate 25 below the front side of the target plate 24, the target device 11 can reliably collect the BB bullets 12 in a minimum space.

[0057] Next, the acoustic sensor 27 will be described with reference to FIG.

[0058] 7, the acoustic sensor 27 is fixed to one end of a substrate 51, and a connector 52 is fixed to the other end of the substrate 51 for connecting a cable (not shown) that transmits an acoustic signal to the signal processing substrate 28. The substrate 51 is then fixed to the housing 21 via a spacer 54 using two screws 55-1 and 55-2 and two nuts 56-1 and 56-2.

[0059] In addition, a sensitivity-adjusting attenuation layer 53 made of a film with a predetermined thickness is attached to the acoustic sensor 27. By attaching the sensitivity-adjusting attenuation layer 53 to the acoustic sensor 27, the sensitivity of the acoustic sensor 27 can be adjusted by attenuating the impact sound that reaches the acoustic sensor 27.

[0060] Therefore, in the target device 11, the acoustic sensor 27 can reliably detect the impact sound by adjusting the thickness of the sensitivity-adjusting attenuation layer 53 so that the volume of the impact sound generated when the BB bullet 12 hits the target board 24 falls within a volume range detectable by the acoustic sensor 27. For example, the impact sound can be more effectively detected by adjusting the thickness of the sensitivity-adjusting attenuation layer 53 so that the average level of the impact sound when the BB bullet 12 hits the center of the target board 24 falls in the middle of the volume range detectable by the acoustic sensor 27. As a result, in the target device 11, the acoustic sensor 27 can reliably detect the impact sound and output a detection signal that can more accurately detect the impact position, impact speed, and the like.

[0061] Next, the outlet nozzle 26 will be described with reference to FIG.

[0062] The outlet nozzle 26 is formed by bending, for example, a 0.6 mm thick iron plate, and is formed into a rectangular cylindrical shape having internal dimensions approximately the same as those of the opening 34 formed in the left side panel 21c. In addition, the end of the outlet nozzle 26 where it is attached to the left panel 21c opens in the longitudinal direction of the outlet nozzle 26, and the opposite end has an inclined surface 26a that slopes downward as it approaches the tip, and an opening 26b is formed on the underside of the outlet nozzle 26 on that end side.

[0063] Therefore, the BB bullet 12 that passes through the opening 34 in the left side panel 21c passes through the cylindrical outlet nozzle 26, as shown by the dashed line in Figure 8, is reflected downward by the inclined surface 26a, and is discharged from the opening 26b.

[0064] In this way, by providing the discharge nozzle 26 in the target device 11, even if the momentum of the BB bullet 12 has not been sufficiently reduced before it passes through the opening 34, the BB bullet 12 is reflected off the inclined surface 26a and heads downward, so that the BB bullet 12 can be reliably collected by the collection case 13.

[0065] Next, FIG. 9 is a diagram showing a first configuration example of a target system including a target device 11. As shown in FIG.

[0066] 9, the target system 101 is configured such that an external monitor 112, which displays the same screen as the personal computer 111, is arranged on the rear side of the target device 11. A signal cable 113 can be connected to a connector 43 arranged on the right side panel 21b of the target device 11, and the personal computer 111 and the target device 11 are connected via the signal cable 113. The personal computer 111 and the external monitor 112 are also connected via a video cable 114.

[0067] Furthermore, the target device 11 is attached with a plurality of legs 116 having adjusters that can adjust the placement position of the target device 11 in the height direction, and the target device 11 is placed at a height that matches the position of the screen of the external monitor 112 by the plurality of legs 116. In this way, the target device 11 is raised by the plurality of legs 116 from the plane on which the external monitor 112 is placed, and a protective plate 117 that protects the space below the target device 11 from BB bullets 12 entering is attached to the legs 116 in front of the target device 11.

[0068] The external monitor 112 displays a target image 115 that serves as a target when the BB bullet 12 is fired, and the target image 115 can be seen from the front side of the target device 11 through the transparent target plate 24 and back plate 23.

[0069] 9, a scoreboard displaying shooting results such as operations and scores is displayed on the external monitor 112 to the right of the target image 115, allowing the user to check the shooting results without having to significantly avert their line of sight while shooting, which is more convenient than checking the shooting results on the personal computer 111, for example. Note that, for example, the user can hide unnecessary items on the external monitor 112, or display the target image 115 over the entire external monitor 112. In addition, in the case of a moving target in which a small target image is displayed while moving, it is preferable for the target image to move across the entire screen of the external monitor 112 so that the target image moves over as wide an area as possible.

[0070] Furthermore, in the target system 101, acoustic signals output from the acoustic sensors 27-1 to 27-4 of the target device 11 are subjected to signal processing by the signal processing board 28 and supplied as detection signals to the personal computer 111. The personal computer 111 executes application software for shooting to perform calculations based on the detection signals supplied from the signal processing board 28. For example, the personal computer 111 calculates the impact position, which is the position on the target board 24 where the BB bullet 12 impacted, the impact velocity, which is the speed of the BB bullet 12 when it impacted the target board 24, the energy of the BB bullet 12 when it impacted the target board 24, and the like.

[0071] For example, the personal computer 111 calculates the impact position where the BB bullet hits the target board 24 based on an impact sound detection time signal supplied as a detection signal from the signal processing board 28. The personal computer 111 also calculates the bullet speed and energy when the BB bullet hits the target board 24 based on a peak hold signal supplied as a detection signal from the signal processing board 28. The personal computer 111 then displays an impact mark (see FIG. 11 ) indicating the location where the BB bullet 12 hits, corresponding to the impact position on the target image 115 displayed on the external monitor 112, each time it detects an impact. The personal computer 111 also displays the score based on the impact position, as well as the impact speed and energy of the BB bullet 12, on a scoreboard to the right of the target image 115 on the external monitor 112. The scoreboard displayed on the external monitor 112 may also be configured to display only the elapsed time and the score.

[0072] In this way, in the target system 101, a bullet impact mark is displayed on the target image 115 each time a target is shot, allowing the user to experience a more realistic and immersive targeting experience and naturally adjust the aim for the next targeting session. Furthermore, the target system 101 can further enhance user convenience by displaying on the external monitor 112 the score based on the impact position, as well as the impact speed and energy of the BB bullets 12. Note that it is also possible to calculate and display only either the impact speed or the energy.

[0073] Next, FIG. 10 is a diagram showing a second configuration example of a target system including a target device 11. As shown in FIG.

[0074] 10, the target system 101A is configured such that the monitor unit 122 of the notebook personal computer 121 is disposed on the rear side of the target device 11, and the keyboard unit 123 of the notebook personal computer 121 is disposed below the target device 11. A signal cable (not shown) can be connected to a connector 43 disposed on the right side panel 21b of the target device 11, and the notebook personal computer 121 and the target device 11 are connected via the signal cable. In addition, the target system 101A uses legs 118 that extend forward so that a protective plate 117 can be disposed in front of the keyboard unit 123 of the notebook personal computer 121.

[0075] 9, in target system 101A, notebook personal computer 121 executes application software for shooting, thereby performing calculations based on detection signals supplied from signal processing board 28. Then, monitor unit 122 of notebook personal computer 121 can display impact marks at the impact positions on target image 115, display scores based on the impact positions, and display the impact speed and energy of BB bullets 12.

[0076] 10, a scoreboard showing shooting results such as operations and scores is displayed on the monitor unit 122 to the right of the target image 115. For example, the scoreboard can be hidden and the target image 115 can be displayed over the entire monitor unit 122. In this case, to avoid difficulty in checking operations and scores, only the scoreboard can be displayed in an independent sub-window. For example, by displaying the scoreboard on a sub-monitor, tablet PC, smartphone, etc., the user can check the shooting results at hand, thereby improving convenience.

[0077] Furthermore, for example, since the target image 115 is displayed large enough to occupy more than half of the monitor unit 122, it can be operated from a position away from the target system 101A within an operable distance (e.g., about 10 m) using a wireless mouse or the like. Specifically, left-clicking on the target image 115 can start the game, and left-clicking on the target image 115 again after the game has started can stop the game. Also, right-clicking on the target image 115 can display the target image 115 full-screen on the monitor unit 122, and right-clicking on the target image 115 again while the target image 115 is displayed full-screen can reduce the size of the target image 115 to display a scoreboard or the like (as shown in FIG. 10 ). Alternatively, the game can be started when the BB bullet 12 has collided with the target board 24 while waiting for the game to start.

[0078] In the target systems 101 and 101A configured as described above, acoustic sensors 27-1 to 27-4 are arranged in the closed space 29 of the target device 11. Therefore, the personal computer 111 and the notebook personal computer 121 can more accurately calculate the impact position and impact speed of the BB bullet 12 using the detection signal output from the signal processing board 28 of the target device 11.

[0079] In the present embodiment, the configuration in which the external monitor 112 in FIG. 9 or the monitor unit 122 in FIG. 10 is disposed on the back side of the target device 11 has been described. However, for example, the signal processing board 28 may also be capable of processing such as position calculation and display, and the target device 11 may be configured to operate independently without being connected to a personal computer 111 or the like. A thin display unit such as an LCD panel may be built into or fixed to the target device 11, and the display unit may be attached to the housing 21 instead of the back panel 23. Alternatively, the display unit may be fixed behind the back panel 23 with the back panel 23 still in place. Furthermore, for example, the back panel 23 may be removed from the target device 11, and a display unit may be placed in contact with the back of the target device 11, thereby forming a closed space 29 using the display unit. In this way, the method of installing the display unit on the target device 11 is not limited to the above-described embodiment.

[0080] Furthermore, the target device 11 may be configured such that a tablet-type personal computer is installed (interior or attached) on the back side of the housing 21, and the target image 115 and the scoreboard can be displayed on the tablet-type personal computer. In this case, a target system that can operate by the target device 11 alone can be realized, instead of a configuration that requires connection to a personal computer 111 as shown in Fig. 9, for example.

[0081] Furthermore, in the target device 11 configured to be able to operate independently, a user can operate it wirelessly using a smartphone, a glasses-type terminal, a dedicated remote controller, a personal computer, etc., by utilizing a wireless LAN (Local Area Network), etc. This can further improve the convenience when using the target device 11.

[0082] The target system 101 may also include an output unit such as a speaker that outputs any sound (e.g., the sound of impact, the sound of destruction, a scream, music, etc.) according to at least one of the impact point, impact speed, or energy. Furthermore, these sounds can be output from the output unit at a volume based on at least one of the impact speed or energy. This can enhance the enjoyment of shooting using the target system 101. Furthermore, the score according to the impact point can be read out by voice. This allows the user to know the score obtained without taking their eyes off the target image 115.

[0083] 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, an opaque plate may be used for the back panel 23 or the target panel 24, or it may be painted with white or other paint, or white or other cloth may be attached, or it may be placed in front of or behind the back panel 23, and the target image 115 may be projected by a projector.

[0084] Here, the detection results of the impact positions in the target systems 101 and 101A will be described with reference to FIG.

[0085] 11A shows target image 115A representing the calculation result of the impact position in a state in which back panel 23 is fixed to housing 21 and acoustic sensors 27-1 to 27-4 are arranged in closed space 29. FIG. 11B shows target image 115B representing the detection result of the impact position in a state in which back panel 23 is removed from housing 21 and acoustic sensors 27-1 to 27-4 are arranged in an open space in which back panel 23 is arranged, for example, 20 mm away from housing 21.

[0086] Figures 11A and 11B show the positions of impact when, for example, a soft air gun is fixed so as to maintain a predetermined height and BB bullets 12 are fired at the target device 11 sequentially from left to right at regular intervals (for example, 1 cm intervals) relative to the target device 11. For example, in the example display of Fig. 11A, the first to 33rd impact positions are indicated by impact marks using circles with numbers attached to them, while in the example display of Fig. 11B, the fourth to 28th impact positions are indicated by impact marks using circles with numbers attached to them.

[0087] 11A, when acoustic sensors 27-1 to 27-4 are placed in a closed space 29, the impact positions are aligned horizontally at a substantially constant height across the entire target image 115A. In other words, when BB bullets 12 are fired from a soft air gun fixed to maintain a predetermined height, the impact positions are calculated to be at a constant height on the target image 115A within a predetermined error range.

[0088] 11B, when acoustic sensors 27-1 to 27-4 are placed in an open space with a 20 mm gap between housing 21 and rear panel 23, the impact positions vary overall in the vertical direction. In particular, in target image 115B, while the fourth through 27th impacts were detected, the impacts near the left and right edges could not be accurately detected. In other words, the first through third and 29th through 33rd impacts could not be detected, resulting in a false detection of the 28th impact.

[0089] For example, in the target systems 101 and 101A, BB bullets 12 are repeatedly shot at the entire surface of the target board 24 at predetermined intervals (e.g., 1 cm intervals), and calculations are performed to measure the impact position and impact speed of the BB bullets 12 by referring to a database of the measurement data obtained as a result. Therefore, it is important to ensure reproducibility between the impact sounds when obtaining the measurement data and the impact sounds when measuring the impact position and impact speed of the BB bullets 12. Therefore, in the target device 11, better reproducibility can be achieved by arranging the acoustic sensors 27-1 to 27-4 in a closed space 29 where the acoustic environment is stationary.

[0090] As described above, the target systems 101 and 101A are configured to place the acoustic sensors 27-1 to 27-4 in a closed space 29, thereby improving the accuracy of measuring the impact position compared to a configuration in which the acoustic sensors 27-1 to 27-4 are placed in an open space. Similarly, the accuracy of measuring the impact speed of bullets can be improved by arranging the acoustic sensors 27-1 to 27-4 in the closed space 29.

[0091] Since the speed of sound changes depending on the temperature, the target device 11 can be configured to include a temperature sensor. In this configuration, the signal processing board 28 corrects the speed of sound based on temperature information detected by the temperature sensor and calculates the impact point using the corrected speed of sound, thereby enabling the impact position to be determined with higher accuracy. By arranging the temperature sensor of the target device 11 in the enclosed space 29, similar to the acoustic sensors 27-1 to 27-4, for example, the speed of sound within the space 29 can be accurately used, allowing the impact position to be accurately measured based on the impact sound detected by the acoustic sensors 27-1 to 27-4. Furthermore, for example, if the sensitivity of the acoustic sensors 27-1 to 27-4 is affected by temperature, the amplification of the acoustic sensors 27-1 to 27-4 can be corrected based on the temperature information detected by the temperature sensor, thereby further improving the accuracy of measuring the impact position, impact velocity, energy, and the like.

[0092] In the present embodiment described above, the target board 24 is fixed in the target device 11 at an angle relative to the vertical. However, the target board 24 does not necessarily have to be fixed at an angle. For example, by tilting the target board 24, the BB bullets 12 can be reflected downward, making it easier to collect the BB bullets 12. On the other hand, even if the target board 24 is fixed vertically, the BB bullets 12 can be reliably collected by ensuring a sufficient width in the front-to-rear direction of the housing 21 so that the BB bullets 12 reflected by the target board 24 do not fly out. Furthermore, in this embodiment, a 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, three, six, eight, or any other number of acoustic sensors 27 can be used depending on the size or shape of the target device 11, allowing for appropriate measurement of the impact position, etc.

[0093] In this specification, the term "system" refers to an entire system made up of multiple devices. The embodiments of the present invention are not limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present invention.

[0094] For example, the present invention is not limited to target system 101, which is a target for BB bullets 12 fired from a soft air gun, but may also be applied to any sport or game in which a projectile hits a target, specifically, a target system such as darts or blowguns. In this case, the hit position of the dart or blowgun can be accurately detected, and the arrow of the dart or blowgun, instead of the impact mark, can be displayed at the hit position on the target image. Furthermore, it is of course necessary to round the tip of the dart or blowgun arrow, which replaces BB bullets, so that it does not pierce the target board 24. When using such projectiles, a collecting unit such as a basket for collecting the projectiles that bounce off the target board 24 can be provided instead of the collecting plate 25.

[0095] Furthermore, if the strength of the target plate 24 is increased, the present invention can also be applied to target systems for real guns (air guns, etc.) which have stronger impact energy than toy guns (soft air guns). [Explanation of symbols]

[0096] 11 target device, 12 BB bullets, 13 recovery case, 21 housing, 21a upper plate, 21b right side plate, 21c left side plate, 21d lower plate, 22 front plate, 23 rear plate, 24 target plate, 25 collection plate, 26 discharge nozzle, 27 acoustic sensor, 28 signal processing board, 31 plate member, 32 and 33 shock absorbing material, 34 opening

Claims

1. a transparent target plate on the back side of which a target is placed when a projectile is launched; a fixing member that fixes the target plate so that the target plate, which is formed of a soft member that suppresses the rebound of the flying object, can vibrate like a membrane stretched across an opening when the target plate deflects to receive the impact of the flying object; a detection unit that is disposed in a space behind at least the target plate and detects an impact sound generated when the flying object collides with the target plate; a targeting device having At least the front of the space is covered by the target plate, the top, bottom, left and right of the space are surrounded by members, and the back side of the space is closed by a predetermined means. Target system.

2. a signal processing unit that performs signal processing on the acoustic signal output in response to the impact sound detected by the detection unit, and outputs a detection signal that is used to calculate the impact position of the flying object on the target board, or the velocity or energy of the flying object when it impacted the target board. The targeting system of claim 1 further comprising:

3. A plate-shaped transparent member is placed at the rear of the space to close the rear side of the space. The targeting system of claim 2 .

4. The rear side of the space is closed by disposing a display unit at the rear of the space that displays a target image of the target and an image showing the impact of the flying object according to the impact position relative to the target image. The targeting system of claim 2 .

5. The display unit is a monitor of a notebook personal computer that executes software that calculates the impact position, or the velocity or energy based on the detection signal. The targeting system of claim 4 .

6. The display unit is a tablet-type personal computer that executes software that calculates the impact position, or the velocity or energy based on the detection signal. The targeting system of claim 4 .

7. A target image of the target is projected by a projector together with an image showing the impact of the flying object corresponding to the impact position of the flying object relative to the target image. A targeting system according to any one of claims 1 to 3.

Images