JP6548082B2 - Target system - Google Patents

Description

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

  When a BB bullet hits a target using a soft air gun, a toy gun equipped with a mechanism that fires a plastic bullet (hereinafter referred to as a BB bullet (Ball Bullet)) with low-pressure compressed air. A radio competition is held to compete for the precision of the landing position of the For example, the landing position on the target paper can be identified by penetrating the BB bullet in the target paper on which the target is drawn.

  Further, in Patent Document 1, microphones are attached to the four corners of a transparent sheet arranged so as to cover the screen of the image display device, and the impact sound when a bullet hits the transparent sheet is detected by the microphone. An apparatus for calculating an impact position on a sheet is disclosed. Also, this device does not have a mechanism for collecting bullets.

JP-A-8-110196

  However, the apparatus disclosed in Patent Document 1 as described above detects the sound emitted when the microphones attached to the four corners of the transparent sheet are fired from the gun of the toy, and the landing position is accurately determined. It was difficult to calculate. That is, this device has a configuration in which the microphone is arranged on the front side of the transparent sheet, and the microphone cannot be configured to be sealed in order 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 fired from the toy gun and the impact sound when the bullet hits the transparent sheet, so that the landing is detected based on the firing sound. A malfunction may occur.

  The present disclosure has been made in view of such a situation, and prevents a malfunction based on a fired sound or the like, so that a landing position, a landing speed, or the like can be detected more accurately.

A target system according to one aspect of the present disclosure includes a target plate targeted by a flying object, a back plate disposed on the back side of the target plate, the target plate and the back plate, and the target plate and the target plate. It is disposed in a closed space enclosed by a back plate and the closed space surrounded by the target plate, the back plate, and the case, and occurs when the flying object collides with the target plate The target plate is formed of a soft member which is fixed only at the outer periphery, received by deflecting the collision of the flying object, and which suppresses the repulsion of the flying object.

In one aspect of the present disclosure, a target plate serving as a target of bullets fired by a soft air gun, a back plate disposed on the back side of the target plate, and a target plate and a back plate are fixed. And a detection unit for detecting an impact sound generated when the bullet collides with the target plate, the detection unit being surrounded by the target plate, the back plate, and the housing Located in a closed space. Further, the target plate is formed of a soft member which is fixed only at the outer periphery and received by deflecting the collision of the flying object to suppress the repulsion of the flying object.

  According to one aspect of the present disclosure, it is possible to more accurately detect the landing position, the landing velocity, and the like by preventing a malfunction due to the shooting sound and the like.

It is a perspective view showing an example of composition of an embodiment of a target device to which this art is applied. It is a figure explaining the structure of a collection board. It is a front view of a target device. It is a left view of a target device. It is a right view of a target apparatus. It is an AA arrow line view in FIG. 5 of a target apparatus. It is a figure explaining an acoustic sensor. It is a figure explaining a discharge port nozzle. It is a figure showing the example of the 1st composition of the target system provided with the target device. It is a figure showing the example of the 2nd composition of the target system provided with the target device. It is a figure which shows the detection result of the impact position in a 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 has a collection mechanism for collecting the BB bullets 12 fired toward the target device 11 by the soft air gun, a landing position and a landing bullet velocity when the BB bullets 12 are landed, etc. Has a function of outputting a detection signal for detecting. In FIG. 1, the path of the BB bullet 12 is indicated by an arrow of a dashed dotted line, and the side (the lower right side in FIG. 1) of the BB bullet 12 toward the target device 11 is the front side of the target device 11 The opposite side (upper left side in FIG. 1) is taken as the back side of the target device 11.

  In addition, a target paper serving as a target when the BB bullet 12 is fired is disposed on the back side of the target device 11, and for example, a display unit (for example, a diagram to be described later) that displays a target image similar to the target paper. 9 and the monitor unit 122 of FIG. Then, the BB bullet 12 fired toward the target through the target device 11 is reflected or rolled inside the target device 11, and then the recovery case is arranged on the left when the target device 11 is 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 back plate 23, a target plate 24, a collection plate 25, an outlet nozzle 26, acoustic sensors 27-1 to 27-4, and signals. A processing substrate 28 is provided.

  Upper and lower surfaces and left and right sides are configured by assembling the upper surface plate 21a, the right side surface plate 21b, the left side surface plate 21c, and the lower surface plate 21d. The upper surface plate 21 a is a plate-like member that constitutes the upper surface of the casing 21, and the right side plate 21 b is a plate-like member that constitutes the right surface of the casing 21. The left side plate 21 c is a plate-like member that constitutes the left side surface of the housing 21, and the lower surface plate 21 d is a plate-like member that constitutes the lower surface of the housing 21. As described above, the casing 21 has a structure in which the upper surface plate 21a, the right side surface plate 21b, the left side surface plate 21c, and the lower surface plate 21d are assembled, so that, for example, the target device 11 can be stored in a space-saving manner.

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

  The target plate 24 is, for example, a transparent plate-like member that receives a collision of the BB bullet 12 fired by the soft air gun toward the target disposed on the back side of the target device 11. For example, the target plate 24 is made of a material having a predetermined plasticity (a material having a slow recovery) against impact, and specifically, a soft vinyl chloride resin having 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. Then, the upper and lower ends and the left and right ends of the target plate 24 are fixed to the inner surface of the casing 21 so that the target plate 24 becomes flat as a whole, that is, does not bend. In addition, the target plate 24 is inclined from the front side to the back side as it goes from the upper side to the lower side of the casing 21 (for example, an inclination angle of about 10 ° forward from the vertical as shown in FIG. 2A. To be disposed inside the housing 21.

  The collecting plate 25 is a space on the front side of the target plate 24 inside the housing 21 and below the lower end (upper end surface of the front plate 22) of the front opening of the housing 21. It is disposed in a space, and is generally fixed so as to have a slope that descends toward the back side and descends toward the left side.

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

  The acoustic sensors 27-1 to 27-4 detect an impact sound generated by, for example, vibration of the target plate 24 when the BB bullet 12 lands on the target plate 24, and the amplitude of the detected impact sound is detected. An acoustic signal according to the change is supplied to the signal processing substrate 28. In addition, as shown in FIG. 1, the acoustic sensors 27-1 to 27-4 are in the vicinity of the back surface side of the target plate 24, and are close to the four corners of the target plate 24, respectively. It is fixed inside. For example, the acoustic sensor 27-1 is disposed near the upper end of the surface facing the inside of the left side plate 21c, and the acoustic sensor 27-2 is disposed near the upper end of the surface facing the inside of the right side plate 21b. The acoustic sensor 27-3 is disposed near the lower end of the surface facing the inside of the left side plate 21c, and the acoustic sensor 27-4 is disposed near the lower end of the surface facing the inside of the right side plate 21b.

  Here, the space 29 provided on the back side of the target plate 24 where the acoustic sensors 27-1 to 27-4 are disposed is closed on the front side by the target plate 24 and closed vertically and horizontally by the housing 21. The back side is closed by the face plate 23. That is, the acoustic sensors 27-1 to 27-4 are disposed in a closed space 29 which is externally closed by the housing 21, the back plate 23, and the target plate 24.

  The signal processing substrate 28 is disposed in the space between the lower surface 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 has landed on the target plate 24, and the BB bullet 12 is subjected to the target plate 24. And a detection signal for detecting an impact position, an impact velocity, and the like at the time of impact on the target.

  For example, the signal processing substrate 28 amplifies the acoustic signal and performs full-wave rectification, and the peak hold signal holding the peak value of its amplitude and the signal obtained by integrating the peak hold signal become equal to or higher than the reference value An impact sound detection time signal indicating timing is output as a detection signal. Then, the signal processing substrate 28 supplies a detection signal to the personal computer 111 of FIG. 9 described later or the notebook personal computer 121 of FIG.

  As described above, the target device 11 is configured, and the BB bullet 12 fired toward the target device 11 collides with the target plate 24 as shown by a one-dot chain line in FIG. At this time, the target plate 24 has a predetermined plasticity against the impact as described above, and the area corresponding to the impact force of the target plate 24 is recessed in a very shallow mortar shape around the landing point. The impact caused by the collision of the bullet 12 is absorbed. Hereinafter, as appropriate, it is referred to that the depression of the target plate 24 and the impact absorbing material 33 (see FIG. 2 described later) of the collecting plate 25 is bent. Thus, the BB bullet 12 in which the impact due to the collision is absorbed by the target plate 24 falls toward the collection plate 25 and rolls toward the back side and the left side in the target device 11 according to the inclination of the collection 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 described above, 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 collecting plate 25. The BB bullets 12 can be reliably recovered without popping out of the housing 21.

  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 detect impact sound with higher reproducibility, that is, if the impact position and impact speed of the BB bullet 12 are the same, substantially the same. Can be detected.

  That is, the target device 11 is configured such that the rear opening is covered by the back plate 23 and the front opening is covered by the target plate 24 with respect to the closed space 29. Thereby, in the target device 11, a reproducible impact is generated by the vibration when the BB bullet 12 collides with the target plate 24, such as a musical instrument (for example, a drum or a timpani) that emits sound by vibration of a film stretched on the opening. A sound is generated.

  Therefore, for example, when the BB bullet 12 lands on a predetermined portion of the target plate 24, the acoustic sensors 27-1 to 27-4 always perform the same landing conditions (landing position, landing speed, and bullet weight), The same impact sound can be detected. Thus, based on the acoustic signals output from the acoustic sensors 27-1 to 27-4, the BB bullets at the time of landing on the target plate 24 that is the position on the target plate 24 at which the BB bullet 12 has landed, A landing velocity of 12 (or energy of the BB bullet 12 when landing on the target plate 24) or the like can be detected very accurately.

  Furthermore, in the target device 11, the acoustic sensors 27-1 to 27-4 are disposed in the closed space 29, so that, for example, the sound emitted when the BB bullet 12 is emitted by the soft air gun is the acoustic sensor 27-1. To 27-4 can be avoided. For example, when the acoustic sensors 27-1 to 27-4 are disposed in an open space, the acoustic sensors 27-1 to 27-4 may detect the sound of the soft air gun. In this case, it is necessary to exclude the emission sound from the acoustic signals output from the acoustic sensors 27-1 to 27-4, and it is difficult to accurately calculate the landing position, the landing speed, and the like.

  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 fired sound of the soft air gun, and thus the sound output from the acoustic sensors 27-1 to 27-4. There is no need to process the sound from the signal. Therefore, the landing position, landing speed, and the like of the BB bullet 12 can be accurately calculated based on the acoustic signals output from the acoustic sensors 27-1 to 27-4.

  In addition, the target device 11 uses the target plate 24 that functions like a musical instrument membrane, so that, for example, the acoustic sensor 27 is compared with a configuration in which a higher-rigidity polycarbonate plate, acrylic plate, or the like is used as the target plate. The impact noise can be accurately detected from -1 to 27-4. That is, in a configuration in which a polycarbonate plate, an acrylic plate, or the like is used as a target plate, vibrations transmitted through the target plate itself may be detected, and it is assumed that accurate detection of an impact sound becomes difficult. On the other hand, in the target device 11, since the vibration transmitted to the target plate 24 itself is attenuated, the acoustic sensors 27-1 to 27-4 correct the impact sound transmitted in the air by the vibration of the target plate 24. Can be detected.

  Furthermore, the target device 11 can produce an effect that the impact sound can be reduced (becomes quieter) as compared with a configuration in which a higher rigidity polycarbonate plate, acrylic plate, or the like is used as the target plate. By the way, as a result of the launch noise becoming relatively large due to the reduction of the impact noise, there is a concern that the malfunction based on the launch noise will increase. However, since the target device 11 has a configuration in which the acoustic sensors 27-1 to 27-4 are disposed in the closed space 29 as described above, in addition to the effect of blocking disturbances such as emission sound. Thus, it is possible to obtain an effect of measuring the sound pressure that has increased three times as the impact sound is confined in the closed space 29. Thus, for example, when the disturbance blocking effect for preventing a malfunction due to a disturbance such as a firing sound is roughly estimated as compared with the device disclosed in Patent Document 1, the acoustic sensors 27-1 to 27-4 are arranged. It is assumed that there is a disturbance blocking effect of about 3 times by making the space closed, and about 3 times by the increase of sound pressure by confining the impact sound in the closed space, about 9 times in total considering these Can be expected to have a disturbance blocking effect. In addition, the configuration in which the acoustic sensors 27-1 to 27-4 are disposed in the closed space 29 prevents the BB bullet 12 from colliding with the acoustic sensors 27-1 to 27-4. Failure of the acoustic sensors 27-1 to 27-4 due to a collision is also avoided.

  Further, in the target device 11, by disposing the acoustic sensors 27-1 to 27-4 in the closed space 29, disturbances due to surrounding sounds can be excluded in addition to the fired sound of the soft air gun. For example, the acoustic sensors 27-1 to 27- are installed in the closed space 29 as compared with the configuration in which the back plate 23 is removed from the housing 21 and the acoustic sensors 27-1 to 27-4 are arranged in the open space. In the configuration in which 4 is arranged, the measurement sensitivity with which the acoustic sensors 27-1 to 27-4 measure the impact sound is improved (for example, about three times). As a result, for example, the noise resistance is improved along with the reduction of the gain, and the difference between the detection values of the acoustic sensors 27-1 to 27-4 due to the distance from the landing position is reduced. Signal-based measurement accuracy can be improved. In addition, the space 29 should just be the extent which can interrupt | block the sound from the outside to some extent, and unlike the sealed space completely interrupted | blocked with the exterior, there may be some clearance gaps. Of course, it is more preferable if the space 29 is completely shut off from the outside.

  By the way, since it is assumed that the BB bullet 12 which is reflected toward the collection plate 25 after being reflected by the target plate 24 has a certain amount of rebound in the collection plate 25, the collection plate 25 is the BB bullet 12. It is configured to suppress the bounce of the.

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

  FIG. 2 shows a schematic configuration example in which the lower part of the target device 11 is enlarged. 2A is a configuration example when the target device 11 is viewed from the left side, FIG. 2B is a configuration example when the target device 11 is viewed from the front side, and FIG. 2C is a configuration example when the target device 11 is viewed from the right side. It is a configuration example seen.

  As shown in A of FIG. 2 and C of FIG. 2, the collecting plate 25 has an inclined portion which descends from the front plate 22 toward the rear plate 23 at an inclination angle of 6.0 °. The portion of the predetermined range of (for example, the range of 10 mm from the rear end) has a shape without inclination toward the front and back. That is, the collecting plate 25 is formed by bending so that the inclined portion on the front side has an angle of 6.0 ° with respect to the predetermined range near the rear end. Further, as shown in B of FIG. 2, the collection plate 25 is fixed to the housing 21 so as to be inclined downward at an inclination angle of 2.7 ° from the right side plate 21 b toward the left side plate 21 c. In this way, the collecting plate 25 is formed so that the BB bullet 12 can roll well from the right side plate 21b toward the left side plate 21c by providing a portion having no inclination toward the front and rear in the vicinity of the rear end. Be done.

  And the collection board 25 is comprised by laminating | stacking the impact-absorbing materials 32 and 33 from which a material differs on the plate member 31 to which such a bending process was given. For example, an iron thin plate having a thickness of 0.6 mm is used for the plate member 31, a urethane sponge having a thickness of 3.0 mm is used for the shock absorber 32, and a soft material having a thickness of 2.0 mm is used for the shock absorber 33. The vinyl chloride resin is used. Thus, for example, by arranging the shock absorbing material 32 in which a urethane sponge is used between the plate member 31 and the shock absorbing material 33, the state in which the shock absorbing material 33 is floating with respect to the plate member 31. The energy absorbed by the BB bullet 12 can be absorbed by bending the shock absorber 33. Specifically, the dent generated in the shock absorber 33 when the BB bullet 12 of up to about 0.3J is landed on the impact absorber 33 of soft vinyl chloride resin (hardness # 570) having a thickness of 2.0 mm is within 3 mm. Since it is certain that the energy of the BB bullet 12 whose energy is attenuated by the collision to the target plate 24 is 0.3 J or less, the collecting plate 25 can sufficiently absorb the impact of the BB bullet 12 confirmed.

  That is, by using such a laminated structure, the collection plate 25 can absorb the energy of the BB bullet 12 reflected and dropped by the target plate 24 and suppress the rebound of the BB bullet 12. The bullet 12 rolls according to the inclination of the collection plate 25. Moreover, even if the BB bullet 12 bounces back on the collection plate 25 because the collection plate 25 is inclined so as to be lowered toward the back side, the BB bullet 12 is directed toward the back side, and the housing It is prevented from jumping out of the front opening 21. Note that the rotation of the BB bullet 12 whose energy has been attenuated by the collision with the target plate 24 also remains, so that the rotation causes the BB bullet 12 to jump diagonally downward or roll over the collection plate 25 violently. There is. On the other hand, the circumference of 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, so that the BB bullet 12 that rolls over the collection plate 25 is provided. Jumping out of the front opening is prevented.

  Therefore, the target device 11 can reliably recover the BB bullet 12 in a limited space in the housing 21. As a result, 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 size of about 25.3 cm in height and 38.6 cm in width when viewed from the front side. Further, 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 an area hidden by the front plate 22 when viewed from the front, and also performs signal processing. A substrate 28 can be placed. By thus suppressing the height of the area (collection area) required for collection of the BB bullet 12 to a low level, it is possible to use the notebook type personal computer 121 as described later with reference to FIG. 10, for example. It can be done.

  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 collecting plate 25, and the lower end of the opening 34 collects the left end of the rear end portion of the collecting plate 25 in contact with the lower surface plate 21 d. It is formed at a position where the thickness of the plate 25 is higher than that of the lower surface plate 21 d. Further, the end on the back side of the opening 34 is formed to substantially coincide with the surface facing the front side of the target plate 24.

  The opening 34 is formed in this way, and the BB bullet 12 that has rolled toward the back side and the left side according to the inclination of the collecting plate 25 is discharged from the opening 34 and has been described above with reference to FIG. As a result, it passes through the outlet nozzle 26 and is collected in the collection case 13.

  As shown in FIG. 2A and FIG. 2C, the front end of the plate member 31 is bent downward so that the bent shape causes the plate member 31 to bend. Is prevented from occurring. Further, as shown in FIG. 2A, the lower left rear end of the plate member 31 is disposed so as to contact the lower surface plate 21d, and the target plate 24 is fixed so as to have an inclination angle of 10 ° with respect to the vertical. Ru.

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

  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. FIG. 6 is a view on arrow A-A in FIG. 5.

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

  The fixing member 41a is attached to the inner surface of the upper surface 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 surface 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, the fixing member 41b is formed with two screw holes, and the fixing member 41b uses a screw from the outside of the right side plate 21b to the inner surface of the right side plate 21b. It is attached. As shown in FIG. 5, a connector 43 for connecting a signal cable connected to the signal processing board 28 is disposed on the right side plate 21b.

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

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

  Further, in the target device 11, the front end portion of the upper surface plate 21a is bent inward so as to form an inclined surface, whereby a bent portion 42a is formed at the front end of the upper surface plate 21a. The bent portion 42a of the top plate 21a is formed, for example, so as to hide the fixing member 41a when the target device 11 is viewed from the front.

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

  As described above, in the target device 11, the bent portions 42 a to 42 c are formed on the upper side and the left and right sides of the opening portion in front of the housing 21, so that the BB bullet 12 directly with respect to the fixing members 41 a to 41 c. Can be avoided. Further, the bent portions 42 a to 42 c form an inclined surface toward the inside of the housing 21, and when the BB bullet 12 collides with the bent portions 42 a to 42 c, it is reflected toward the inside of the housing 21. The BB bullet 12 can then be collected at the target device 11.

  As described above, the target device 11 is disposed on the target plate 24 by fixing the four sides of the target plate 24 by the fixing members 41 a to 41 d and by stretching the target plate 24 in the space in the housing 21. When the BB bullet 12 collides, the target plate 24 is bent. Thereby, in the target device 11, 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 front side of the target plate 24, 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 a cable (not shown) for transmitting an acoustic signal to the signal processing substrate 28 is connected to the other end of the substrate 51. The connector 52 is fixed. And the board | substrate 51 is fixed to the housing | casing 21 via the spacer 54 using the 2 screws 55-1 and 55-2 and the 2 nuts 56-1 and 56-2.

  In addition, a sensitivity adjustment attenuation layer 53 formed of a film having a predetermined thickness is attached to the acoustic sensor 27. By attaching the attenuation layer 53 for sensitivity adjustment 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.

  Therefore, in the target device 11, the volume of the sensitivity adjustment attenuation layer 53 is set such that the volume of the impact sound generated when the BB bullet 12 lands on the target plate 24 falls within the range of the 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 attenuation layer 53 is set so that the average level of the impact sound when the BB bullet 12 lands on the center of the target plate 24 is at the center within the range of sound volume detectable by the acoustic sensor 27. By adjusting it, impact noise can be detected better. Thereby, in the target device 11, the impact sound can be reliably detected by the acoustic sensor 27, and a detection signal capable of more accurately detecting the impact position, the impact velocity, and the like can be output.

  Next, the discharge nozzle 26 will be described with reference to FIG.

  The discharge port nozzle 26 is formed, for example, by bending an iron plate having a thickness of 0.6 mm, and is formed in a rectangular cylindrical shape having an inner dimension similar to that of the opening 34 formed in the left side surface plate 21c. Further, the end on the side where the discharge port nozzle 26 is attached to the left side plate 21c is opened toward the length direction of the discharge port nozzle 26, and the other end is the lower side toward the tip. An inclined inclined surface 26 a is formed, and an opening 26 b is formed on 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 discharge nozzle 26 and is reflected downward by the inclined surface 26a, as shown by the one-dot chain line in FIG. Then, it is discharged from the opening 26b.

  Thus, in the target device 11, by providing the discharge port nozzle 26, for example, even if the momentum of the BB bullet 12 is not sufficiently decelerated before passing through the opening 34, it is reflected on the inclined surface 26a. As it goes downward, the BB case 12 can be reliably recovered by the recovery case 13.

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

  As shown in FIG. 9, in the target system 101, an external monitor 112 for displaying the same screen as the personal computer 111 is disposed on the back side of the target device 11. Further, the signal cable 113 can be connected to the connector 43 disposed 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. The personal computer 111 and the external monitor 112 are connected via the video cable 114.

  Further, the target device 11 is attached with a plurality of legs 116 having an adjuster capable of adjusting the arrangement position of the target device 11 in the height direction, and the target device 11 is an external monitor by the plurality of legs 116 It is arranged to have a height that matches the position of the screen 112. Thus, 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 does not enter the space below the target device 11. Is attached to the front leg 116 of the targeting device 11.

  Then, the external monitor 112 displays a target image 115 which is a target when firing the BB bullet 12, 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. Visible.

  In the display example of FIG. 9, a scoreboard on which shooting results such as operations and scores are posted is displayed on the right side of the target image 115 on the external monitor 112, and the user greatly removes his line of sight during shooting. The result of shooting can be confirmed without, for example, the convenience can be improved as compared with the case of checking the result of shooting with the personal computer 111. Note that, for example, the external monitor 112 can hide an unnecessary item, or the target image 115 can be displayed on the entire external monitor 112. Further, in a moving target in which a small target image is moved and displayed, it is preferable that the target image moves on the entire screen of the external monitor 112 so that the target image moves around as wide a range as possible.

  Further, 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 to the personal computer 111 as a detection signal. The personal computer 111 performs calculation based on the detection signal supplied from the signal processing board 28 by executing the application software for shooting. For example, the personal computer 111 has landed on the target plate 24, the landing position that is the position on the target plate 24 where the BB bullet 12 has landed, the landing bullet speed that is the speed of the BB bullet 12 when landing on the target plate 24, The energy of the BB bullet 12 is calculated.

  For example, the personal computer 111 calculates an impact position at which the BB bullet has landed on the target plate 24 based on an impact sound detection time signal supplied as a detection signal from the signal processing substrate 28. Further, the personal computer 111 calculates the speed and energy at the time when the BB bullets land on the target plate 24 based on the peak hold signal supplied as a detection signal from the signal processing substrate 28. Then, the personal computer 111 displays a landing mark (see FIG. 11) indicating a spot where the BB bullet 12 has landed corresponding to the landing position in the target image 115 displayed on the external monitor 112 every time it detects landing. Do. In addition, the personal computer 111 displays the score based on the landing position, the landing bullet speed of the BB bullet 12, energy, and the like on the scoreboard on the right side of the target image 115 of the external monitor 112. Further, only the elapsed time and the score may be displayed on the scoreboard displayed on the external monitor 112.

  As described above, in the target system 101, since the landing mark is displayed on the target image 115 each time shooting is performed, the user can experience a more realistic and realistic shot. Can be naturally corrected. Further, in the target system 101, the user's convenience can be further enhanced by displaying on the external monitor 112 the score based on the landing position, the landing bullet speed of the BB bullet 12, energy and the like. Note that only one of the impact bullet speed and the energy may be obtained and displayed.

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

  As shown in FIG. 10, in the target system 101 </ b> A, the monitor unit 122 of the notebook personal computer 121 is arranged on the back side of the target device 11, and the keyboard unit 123 of the notebook personal computer 121 is arranged below the target device 11. Is configured. Further, a signal cable (not shown) can be connected to the connector 43 disposed 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. Further, in the target system 101A, a leg portion 118 extended forward is used so that the protective plate 117 can be disposed in front of the keyboard portion 123 of the notebook personal computer 121.

  In the target system 101A, similarly to the target system 101 in FIG. 9, the notebook personal computer 121 executes the shooting application software, thereby calculating based on the detection signal supplied from the signal processing board 28. It can be performed. Then, on the monitor unit 122 of the notebook type personal computer 121, a landing mark is displayed at the landing position in the target image 115, a score based on the landing position is displayed, and the landing 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 the right side of the target image 115 on which shooting results such as operations and scores are posted. For example, the scoreboard is not displayed, The target image 115 can be displayed on the entire monitor unit 122. In this case, only the scoreboard can be displayed in an independent sub-window in order to avoid trouble in operation and score confirmation. For example, by displaying a scoreboard on a sub monitor, a tablet PC, a smartphone or the like, the user can check the shooting result at hand, and the convenience can be further improved.

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

  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. Therefore, the personal computer 111 and the notebook type personal computer 121 may calculate the impact position, the impact velocity, and the like of the BB bullet 12 more accurately, using the detection signal output from the signal processing substrate 28 of the target device 11. it can.

  In the present embodiment, the configuration in which the external monitor 112 in FIG. 9 and the monitor unit 122 in FIG. 10 are arranged on the back side of the target device 11 has been described. However, for example, processing such as position calculation and display is performed. A signal processing substrate 28 may be used, and the target device 11 may be independently operable without being connected to a personal computer 111 or the like, and a thin display unit such as a liquid crystal panel may be mounted or fixed to the target device 11. The display unit can be attached to the housing 21 instead of the back plate 23. Alternatively, the display unit may be fixed behind the back plate 23 with the back plate 23 provided. Furthermore, 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 portion of the target device 11, a closed space 29 is configured using the display unit. May be Thus, the installation method of the display part with respect to the target apparatus 11 is not limited to embodiment mentioned above.

  In addition, the target device 11 may be configured such that a tablet personal computer is installed (interior or mounted) on the back side of the housing 21, and the target image 115 and the scoreboard are displayed on the tablet personal computer. Can. In this case, for example, a target system that can be operated by the target device 11 alone can be realized instead of a configuration that requires connection with the personal computer 111 as shown in FIG.

  In the target device 11 configured to operate independently, the user uses a smartphone, a spectacle-type terminal, a dedicated remote controller, a personal computer, or the like, and wirelessly using a wireless local area network (LAN) or the like. You can do the operation. Thereby, when using the target device 11, convenience can be improved more.

  Further, the target system 101 includes an output unit such as a speaker that outputs an arbitrary sound (for example, landing sound, breaking sound, scream, music, etc.) according to at least one of landing point, landing speed, or energy. be able to. Furthermore, those sounds can be output from the output unit at a volume based on at least one of landing velocity or energy. Thereby, the playability to the shooting using the target system 101 can be improved. In addition, the score corresponding to the landing point can be read out by voice. Thereby, the user can know the obtained score without taking his eyes off the target image 115.

  Furthermore, the display method for displaying the target image 115 is not limited to the display unit such as the liquid crystal panel. For example, an opaque plate is used for the back plate 23 or the target plate 24, a white paint or the like is applied, a white cloth or the like is applied, or the back plate 23 is placed before or after the back plate 23. A method of projecting the target image 115 can be employed.

  Here, with reference to FIG. 11, the detection result of the landing position in the target systems 101 and 101A will be described.

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

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

  As shown in A of FIG. 11, in the state where the acoustic sensors 27-1 to 27-4 are disposed in the closed space 29, the landing position across the entire target image 115A is horizontal at a substantially constant height. It is a result that is aligned in the direction. That is, as a result of firing the BB bullet 12 from the soft air gun fixed so as to maintain a predetermined height, the landing position is calculated so as to be a constant height on the target image 115A within a predetermined error range. There is.

  On the other hand, as shown in B of FIG. 11, in a state where the acoustic sensors 27-1 to 27-4 are arranged in an open space where a 20 mm gap is provided between the housing 21 and the back plate 23. As a result, the landing positions are generally uneven in the vertical direction. In particular, in the target image 115B, the impact from the 4th to the 27th could be detected, but the impact could not be detected accurately in the vicinity of the left and right ends, that is, the 1st to the 3rd and the 29th To the 33rd landing cannot be detected, resulting in a false detection of the 28th landing.

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

  As described above, in the target systems 101 and 101A, the acoustic sensors 27-1 to 27-4 are disposed in the open space by the configuration in which the acoustic sensors 27-1 to 27-4 are disposed in the closed space 29. The measurement accuracy of the impact position can be improved as compared with the configuration described above. Similarly, with regard to the impact speed, the measurement accuracy can be improved by the arrangement of the acoustic sensors 27-1 to 27-4 in the closed space 29.

  By the way, since the speed of sound changes according to the temperature, the target device 11 can be configured to include a temperature sensor. In this configuration, the signal processing board 28 corrects the sound speed based on the temperature information detected by the temperature sensor, and calculates the landing point using the corrected sound speed, thereby obtaining the landing position with higher accuracy. be able to. Here, the speed of sound in the space 29 can be accurately used by disposing the temperature sensor with which the target device 11 is provided, for example, in the closed space 29 similarly to the acoustic sensors 27-1 to 27-4. The landing position based on the impact sound detected by the acoustic sensors 27-1 to 27-4 can be accurately measured. For example, when the sensitivity of the acoustic sensors 27-1 to 27-4 is affected by the temperature, the amplification degree of the acoustic sensors 27-1 to 27-4 is corrected based on the temperature information detected by the temperature sensor. By doing this, it is possible to further improve the measurement accuracy of the landing position, landing velocity, energy and the like.

  In the above-described embodiment, in the target device 11, the target plate 24 is fixed so as to be inclined with respect to the vertical, but the target plate 24 is not necessarily inclined and fixed. 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 when the target plate 24 is fixed vertically, the width in the front-rear direction of the casing 21 is sufficiently secured so that the BB bullet 12 reflected by the target plate 24 does not jump out. Thus, the BB bullet 12 can be reliably recovered. Furthermore, although the configuration using four acoustic sensors 27-1 to 27-4 has been described in the present embodiment, the number of acoustic sensors 27 is not limited to four. For example, according to the size or shape of the target device 11 such as three, six, or eight, the number of acoustic sensors 27 that can appropriately measure the landing position or the like can be used.

  In the present specification, the system represents the entire apparatus configured by a plurality of apparatuses. The embodiments of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  For example, the present invention is not limited to the target system 101 that is the target of the BB bullet 12 fired by the soft air gun, and any game or game in which a flying object is hit against the target, specifically, darts , And may be applied to target systems such as blowouts. In this case, it is possible to accurately detect the hit position where a dart or a brow hit, and instead of the landing mark, a dart or a brow arrow may be displayed on the hit position on the target image. Of course, it is necessary to round the tip so that a dart or a blown arrow instead of the BB bullet does not pierce the target plate 24. In addition, when using such a flying object, it can change to the collection board 25, and collection parts, such as a cage | basket, for collecting the flying object which rebounded by the target board 24 can be provided.

  Furthermore, if the strength of the target plate 24 is increased, the present invention can also be applied to a target system of an actual gun (such as an air gun) that has stronger energy at the time of landing than a toy gun (soft air gun).

  DESCRIPTION OF SYMBOLS 11 Target apparatus, 12 BB bullet, 13 Collection case, 21 Housing | casing, 21a Upper surface plate, 21b Right side surface plate, 21c Left side surface plate, 21d Lower surface plate, 22 Front surface plate, 23 Back surface 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 (15)

A target plate that is the target of the flying object and formed in a plane,
A back plate disposed on the back side of the target plate;
A housing for closing a space sandwiched between the target plate and the back plate;
A detection unit disposed in a closed space surrounded by the target plate, the back plate, and the housing, and detecting an impact sound generated when the flying object collides with the target plate;
The target system is formed by a soft member which is fixed only at the outer periphery and received by deflecting the collision of the flying object to suppress the repulsion of the flying object. A collection unit disposed in a space on the front side of the target plate and in a space below an opening in front of the housing and configured to collect the flying object reflected by the target plate. The target system according to 1. An impact absorbing material that absorbs the impact of the flying object reflected by the target plate and falling toward the collecting plate is disposed on the upper surface of the collecting plate used as the collecting unit. The described target system. The target system according to claim 3, wherein the collection plate is inclined so as to go down to either the left or right side and down to the back side. An opening is formed on the side surface of the housing in the direction in which the collecting plate is inclined,
The target system according to claim 4, further comprising a storage unit that stores the flying object that has passed through the opening. The target system according to claim 1, wherein the target plate is made of a material having a predetermined plasticity against impact. The target system according to any one of claims 1 to 6, wherein the target plate is fixed to the inside of the housing at an inclination angle from the front side to the back side as going from the top to the bottom of the housing. An acoustic signal output corresponding to the impact sound detected by the detection unit is subjected to signal processing, and a landing position at which the flying object lands on the target plate, or when the flying object lands on the target plate The target system according to any one of claims 1 to 7, further comprising: a signal processing unit that outputs a detection signal used to calculate either velocity or energy. The target system according to claim 8, further comprising: an output unit configured to output a sound of a volume based on at least one of speed or energy calculated using the detection signal. The impact absorbing material is laminated on the upper surface of a hard thin plate and is composed of at least two kinds of members having different materials.
The target system according to claim 3 . The target system according to claim 10, wherein at least the soft sheet-like first member and the sponge-like second member having minute holes are used as the shock absorbing material. The target system according to claim 11, wherein the shock absorbing material is a laminated structure in which the second member is disposed between the thin plate and the first member. The detection unit that will be placed at a plurality of locations on the rear side of the front Symbol target board, the damping layer that makes delivered to the detection unit to attenuate the impact sound is attached
The target system of claim 1 . The target system according to claim 13, 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 at one end. The target system according to claim 14, wherein the substrate is fixed at at least two positions with respect to a housing for fixing the target plate.

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