Target system

Abstract

To provide a technology that enables high-speed projection of target images.SOLUTION: As one of solutions, a target system comprises a target device having a screen, a first projector projecting a target on the screen and a control device controlling the first projector. The first projector comprises a light source of a single light, a condenser lens collecting an irradiated light of the light source, a projection lens and shadow picture forming means or a diffractive optical element provided in the projection lens that projects a target image onto the screen. The control device is configured to control ON / OFF of the light source.SELECTED DRAWING: Figure 4

Description

【Technical Field】 【0001】 The present disclosure relates to a target system and is applicable to, for example, a target system that forms a target by a projector. 【Background Art】 【0002】 Various systems for live firing training have been proposed. Some of these firing training systems project a target image onto a screen such as a projection cloth using a projector. For example, the firing training system disclosed in Patent Document 1 projects a target image onto the surface of a rubber-type sensor as a screen using a projector. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2020-41743 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 Projectors that irradiate multicolor light of red (R), green (G), and blue (B) using a mercury lamp or a laser as a light source are sold. Projecting a target image with this commercially available projector takes time until the image is projected and may not be able to handle targets for rapid firing. 【0005】 An object of the present disclosure is to provide a technique capable of rapidly projecting a target image. Other objects and novel features will become apparent from the description of this specification and the accompanying drawings. 【Means for Solving the Problems】 【0006】 A summary of one of the representative aspects of the present disclosure is briefly described as follows. In other words, the target system comprises a target device having a screen, a projector that projects a target onto the screen, and a control device that controls the projector. The projector comprises a single light source, a focusing lens that focuses the light emitted from the light source, a projection lens, and a shadow-forming means or diffraction optical element provided on the projection lens that projects a target image onto the screen. The control device is configured to control the ON / OFF state of the light source. [Effects of the Invention] 【0007】 According to this disclosure, high-speed projection of target images becomes possible. [Brief explanation of the drawing] 【0008】 [Figure 1] Figure 1 shows the device configuration of a shooting training system in an embodiment. [Figure 2] Figure 2 shows one configuration of the control device shown in Figure 1. [Figure 3] Figure 3 shows one configuration of the target device shown in Figure 1. [Figure 4] Figure 4 is an illustrative diagram showing the configuration of the first projector shown in Figure 1. [Figure 5] Figure 5 is an illustrative diagram showing the configuration of the second projector shown in Figure 1. [Figure 6] Figure 6 is an illustrative diagram showing the configuration of the input / output processor, VR glasses, and shooter sensor shown in Figure 1. [Figure 7] Figure 7 shows an example of the preparation flow for the shooting training system shown in Figure 1. [Figure 8] Figure 8 shows an example of the shooting training flow of the shooting training system shown in Figure 1. [Modes for carrying out the invention] 【0009】 The embodiments will be described below with reference to the drawings. However, in the following description, the same components will be denoted by the same reference numerals, and repeated descriptions may be omitted. 【0010】 Figure 1 shows the device configuration of a shooting training system in an embodiment. 【0011】 The shooting training system 10 is a system used, for example, in an indoor live-fire shooting range. The shooting training system 10 comprises a target device 20, a first projector 30, a second projector 40, an input / output processor 50, VR (Virtual Reality) glasses 60, a shooter sensor 70, a control device 80, and a background area 90. 【0012】 The target device 20, the first projector 30, the second projector 40, and the input / output processor 50 communicate data with the control device 80 via wired communication (wired LAN, RS-422, etc.) or wireless communication (wireless LAN (WiFi), Bluetooth, etc.). The VR glasses 60 communicate data with the input / output processor 50 via wireless communication. The shooter sensor 70 communicates data with the input / output processor 50 via wired communication or wireless communication. 【0013】 In the shooting training system 10, the number of rounds loaded in the firearm F, such as a gun, to be used by the shooter S is registered with the input / output processor 50 before shooting. The shooter S uses the firearm F to fire live ammunition at a target T projected onto the projection screen 21 of the target device 20, and conducts training. The impact position is detected by the detector 22 of the target device 20 and notified to the input / output processor 50, which is installed near the shooter S, via the control device 80, and the impact position is displayed on the monitor or VR glasses 60. The number of rounds fired is detected by the shooter sensor 70 and notified to the input / output processor 50, and the value obtained by subtracting the number of rounds fired from the number of rounds loaded is displayed as the remaining ammunition on the monitor or VR glasses 60. In addition, the control device 80 can be used to set training conditions such as training information (target used, firearm used, etc.). 【0014】 The control device 80 will be explained using Figure 2. Figure 2 is a block diagram showing the configuration of the control device shown in Figure 1. 【0015】 The control device 80 has the control functions of the first projector 30 and the second projector 40, the video generation function of the second projector 40, and the combination function of the impact position and the target. The control device 80 can use a PC (Personal Computer), a dedicated machine, or the like. The control device 80 includes a display device 81 (DSP), a control circuit (CNT) 82, a communication interface circuit (CMI / F) 83, a power supply circuit (PC) 84, a power supply interface circuit (PCI / F) 85, an input device (INP) 86, and an auxiliary storage device (AXS) 87. 【0016】 The display device 81 is an FPD (Flat Panel Display) such as a liquid crystal display, and can display the control screen of the shooting system or information related to the impact. The power supply circuit 84 supplies power to the communication interface circuit 83 and the control circuit 82. The input device 86 is a keyboard, a mouse, a touch panel, or the like, and receives input from the operator of the control device 80. The communication interface circuit 83 is an interface for performing wired or wireless communication of data between the control circuit 82 and the target device 20, the first projector 30, the second projector 40, the input / output processor 50, and the shooter sensor 70. 【0017】 The control circuit 82 includes a CPU (Central Processing Unit) 821 and a storage device (MRY) 822. The CPU 821 executes various processing programs stored in the storage device 822. 【0018】 The storage device 822 is composed of a RAM (Random Access Memory) composed of a volatile memory such as SRAM or DRAM, a ROM (Read Only Memory) composed of a non-volatile memory such as a flash memory, and the like. The auxiliary storage device (AXS) 87 is composed of an HDD (Hard Disc Drive), an SSD (Solid State Drive), or the like. The storage device 822 and the auxiliary storage device 87 store data necessary for video generation of the second projector 40, etc., in addition to the programs executed by the CPU 821. 【0019】 As part of the functions executed by the control device 80, there are creation of video data for highlighting the impact location based on the impact position coordinates received from the target device 20, control and setting of the first projector 30 and the second projector 40, generation of the projection mapping video data projected by the second projector 40, and control and setting of the input / output processor 50, etc. These are realized by executing the corresponding processing programs. 【0020】 The target device 20 has an impact position detection function and a communication function. As shown in FIG. 1, the target device 20 is configured to include a projection screen 21 and a detector 22. The projection screen 21 is formed of a projection cloth, rubber, or the like. A video is projected onto the projection screen 21 by the first projector 30 to project the target T. The detector 22 is installed under the projection screen 21 and detects the impact of shooting. 【0021】 A configuration example of the target device 20 will be described using FIG. 3. Note that FIG. 3 is a diagram showing one configuration of the target device shown in FIG. 1. 【0022】 The projection screen 21 is configured by sandwiching the front and back of the wooden frame 211 with rubbers 212 and 213. The detector 22 is composed of a plurality of sensors 214 provided at the lower part of the wooden frame 211. The rubbers 212 and 213 preferably have stretchability and are self-healing materials capable of shrinking the through-hole at the time of bullet penetration. By using the rubbers 212 and 213, even in the case of firearms with a low initial velocity such as air guns, the shock wave can be detected. 【0023】 The detector 22 can detect bullet impacts in a detection area 215 that is wider than the target T projected onto the projection screen 21, and can detect bullet impacts in the detection area 215 regardless of whether the bullet hits the target T. The detection area 215 is an area within the projection screen 21, and is set to be wider than the target T. When a bullet passes through the rubber 212, 213, the shock wave of the bullet is detected by multiple sensors 214 such as acoustic sensors and ultrasonic sensors, and the detector 22 calculates the bullet impact coordinates converted into XY coordinates in the detection area 215 from the time when the multiple sensors 214 detect the shock wave and the positional relationship between the sensors. The detector 22 is equipped with a communication device that transmits and receives data to and from the control device 80 via wired or wireless communication. 【0024】 The first projector 30 will be explained using Figure 4. Figure 4 is an illustrative diagram showing the configuration of the first projector shown in Figure 1. 【0025】 The first projector 30 has a target projection function, a projection / off control function, and a communication function. The first projector 30 projects a single light. The first projector 30 includes a light source (LS) 31, a control circuit (CNT) 32, a communication interface circuit (CMI / F) 33, a power supply circuit (PC) 34, a power interface circuit (PCI / F) 35, a projection lens 36, a focusing lens (condenser lens) 37, and a target image forming means 38. The control circuit (CNT) 32 and the communication interface circuit 33 may be composed of a microcontroller unit including a CPU and a memory device. 【0026】 The light source 31 is composed of a single-beam laser. The luminous intensity of the laser is preferably 10,000 mcd or higher. The focusing lens 37 is, for example, composed of a condenser lens, and focuses the light emitted from the light source 31, taking directivity into consideration. This makes it possible to reduce power consumption relative to the illuminance. 【0027】 The target image forming means 38, provided on the front surface (projection screen 21 side) of the projection lens 36, is a shadow image forming means (light shielding material) or a diffractive optical element (DOE) that forms a shadow image on the projection screen 21 by projection. The communication interface circuit 33 communicates with the control device 80 via wired or wireless communication. 【0028】 In the first projector 30, the illumination light output from the light source 31 passes through the target image forming means 38 and is projected onto the projection screen 21. As the illumination light passes through the target image forming means 38, shadows are created in areas where the illumination light is not displayed, making it possible to display the target image. The target images are, for example, a 300m rifle target, a 10m air rifle target, a 50m free pistol target, etc. By using a white cloth or white board for the projection screen 21 and creating a darkroom environment without shining a light on the target device 20 side, it becomes possible to project the target onto the projection screen 21. 【0029】 The control device 80 can control the on / off state of the light source 31 via the communication interface circuit 33 and the control circuit 32. It enables on / off control of the light source 31 and high-speed projection / extinguishing of the target by the target image forming means 38. The projection screen 21, the first projector 30, and the control device 80 constitute the target system. 【0030】 Commercially available projectors use mercury lamps or lasers as light sources to emit red (R), green (G), and blue (B) multi-colored light, which means that it takes time to project an image. Therefore, they may not be suitable for rapid-fire shooting. Rapid-fire shooting is, for example, firing one shot when the target is hidden for 7 seconds and then facing forward for 3 seconds. The first projector 30 uses a single-light laser, allowing for faster ON / OFF control. This makes it possible to accommodate rapid-fire shooting. 【0031】 Commercially available projectors have high heat output, so depending on the air conditioning system of an indoor shooting range, the projector's radiant heat may increase as the room temperature rises in the summer, potentially causing the projector to overheat. Furthermore, commercially available projectors have cooling fans that draw in dust from the shooting range. This dust can accumulate on the fan, causing it to malfunction and overheat, making shooting practice impossible. On the other hand, the first projector 30 has low heat output, allowing it to rely solely on natural heat dissipation from the heatsink, eliminating the need for a fan. This eliminates the problems associated with commercially available projectors mentioned above. 【0032】 The second projector 40 will be explained using Figure 5. Figure 5 is an illustrative diagram showing the configuration of the second projector shown in Figure 1. 【0033】 The second projector 40 has an image projection function, a bullet impact point highlighting function, and a communication function. The second projector 40 has the same functions as a projector that projects multicolor light. The second projector 40 includes a projector optical engine (POE) 41, a control circuit (CNT) 42, a communication interface circuit (CMI / F) 43, a power supply circuit (PC) 44, a power interface circuit (PCI / F) 45, and a projection lens 46. The communication interface circuit 43 communicates with the control device 80 via wired or wireless communication. The control circuit (CNT) 42 and the communication interface circuit 43 may be composed of a microcontroller unit including a CPU and a memory device. 【0034】 The projector optical engine (POE) 41 uses a mercury lamp or laser as a light source and features multi-color projection capabilities that emit RGB multi-color light using liquid crystal or digital lighting processing methods. 【0035】 The second projector 40 is capable of projecting images such as projector mapping by being illuminated with multi-color laser light from the multi-color projection function of the projector optical engine 41. The image data is prepared in the control device 80, and the control circuit 42 acquires the image data via the communication interface circuit 43. The control circuit 42 supplies the received image data to the projector optical engine 41. The projector optical engine 41 projects the image using its multi-color projection function based on the supplied image data. 【0036】 For example, the control device 80 creates video data that highlights the impact point based on the impact position coordinates acquired by the detector 22 on the target device 20. The second projector 40 projects the highlighted image onto the projection screen 21 based on this video data. This makes it possible to highlight the impact point on the projected image. 【0037】 Furthermore, the control device 80 creates video data for, for example, target images (friend-or-foe identification, clay target shooting targets, etc.), simulated environments (summer flickering, dust, snow, rain, etc.), and simulated target fire (muzzle flash). The second projector 40 projects the video onto the projection screen 21 and background area 90 based on this video data. This makes it possible to create a sense of artificial reality. 【0038】 By reducing the lighting on the target device 20 side of the background area 90 or creating a darkroom environment, projection of projector mapping by the second projector 40 becomes possible. When a white cloth is placed in the background area 90, light and image reflections occur, allowing for a clearer display of the image. It is also possible to create an artificial reality effect by using an image that conforms to the shape of the background area without using a white cloth. When combining the first projector 30 and the second projector 40, both displays are possible by displaying the target as a shadow, excluding the area projected by the first projector 30 from the area projected by the second projector 40. The shooting training system may also be configured without using the second projector 40. 【0039】 Depending on the firing distance, the point of impact may not be visible from the shooter's position S. The second projector 40 highlights the point of impact, making it possible to see the point of impact even at long ranges. Furthermore, even if the shot misses target T, it becomes possible to see how far off it was. 【0040】 When conducting shooting training in response to target displays or shooting training involving concealment and reappearance actions, if these actions are repeated, it may not lead to an increase in the shooter's experience and improvement in proficiency through unplanned actions such as simulated return fire. By providing the aforementioned artificial reality with the second projector 40, it becomes possible to increase the shooter's experience and improve proficiency in response to the display on the second projector 40. 【0041】 The input / output processor 50, VR glasses 60, and shooter sensor 70 will be explained using Figure 5. Figure 6 is an illustrative diagram showing the configuration of the input / output processor, VR glasses, and shooter sensor shown in Figure 1. 【0042】 The input / output processor 50 is equipped with a remaining ammunition calculation function and a communication function. The input / output processor 50 is composed of a PC (Personal Computer) or a dedicated machine. The input / output processor 50 has a display device (DSP) 51, a control circuit (CNT) 52, a first communication interface circuit (CMI / F) 53, a second communication interface circuit 54, an input device (INP) 55, and a power supply circuit. The control circuit 52 has the same configuration as the control circuit 82. 【0043】 The VR glasses 60 are equipped with a remaining ammunition count display function, a bullet impact position display function, and a communication function. The VR glasses 60 are attached to a headset, hat, or helmet or other headwear E at a location where the shooter S's line of sight is diverted. The VR glasses 60 are equipped with a display device (DSP) 61, a control circuit (CNT) 62, a communication interface circuit, and a power supply. The control circuit (CNT) 62 and the communication interface circuit may be composed of a microcontroller unit including a CPU and a memory device. 【0044】 The shooter sensor 70 has a function for detecting the number of rounds fired and a communication function. The shooter sensor 70 is installed near the shooter S's weapon F. The shooter sensor 70 includes a sensor 71 that detects firing from the weapon F, a control circuit 72 that calculates the number of rounds fired from the firing detected by the sensor 71, a communication interface circuit 73 that communicates the number of rounds fired to the input / output processor 50, and a power supply circuit. The control circuit 72 and the communication interface circuit 73 may be composed of a microcontroller unit including a CPU and a memory device. 【0045】 The first communication interface circuit 53 communicates via wired or wireless connection with the shooter sensor 70's communication interface circuit and control device 80. The second communication interface circuit 54 communicates wirelessly (wireless LAN (WiFi), short-range wireless, etc.) with the VR glasses 60. 【0046】 The input / output processor 50 displays the data acquired from the shooter sensor 70 and the control device 80 on the screen of the display device 61 of the VR glasses 60. The shooter S can select the content (shooting location or remaining ammunition) to be displayed on the VR glasses 60 using the input device 55 of the input / output processor 50. 【0047】 The control circuit 52 obtains the impact position coordinates acquired by the detector 22 on the target device 20 from the control device 80 via the first communication interface circuit 53. Based on the acquired impact position coordinates, the control circuit 52 creates image display data to be displayed on the display device 61 of the VR glasses 60. Here, the impact position coordinates are defined as the absolute value of the center of the target image. Then, via the second communication interface circuit 54, the control circuit 52 transmits the image display data to the VR glasses 60 to display the impact location on the display device 61. 【0048】 Furthermore, the control circuit 52 obtains the number of rounds fired from the shooter sensor 70 on the shooter S side via the first communication interface circuit 53. The control circuit 52 calculates the remaining ammunition by subtracting the obtained number of rounds fired from the number of rounds loaded in the firearm F. The control circuit 52 transmits the remaining ammunition to the VR glasses 60 via the second communication interface circuit 54, and displays the remaining ammunition on the display device 61. 【0049】 When the point of impact is displayed on a screen set up at the shooting location, there are limitations on the shooting location and visibility issues such as the shooter moving their head during firing. By using the input / output processing unit 50 including VR glasses 60, it becomes possible to see the point of impact on the target (the location of the hit or miss) simply by averting one's gaze after firing. This makes it possible to concentrate on aiming without moving the head. 【0050】 Furthermore, if it is necessary to remember the number of rounds fired and count the remaining ammunition, there are problems such as not being able to concentrate solely on hitting the target, or not being able to accurately determine the remaining number of rounds when firing in rapid succession with a twin-barreled gun. By using the input / output processor 50, including the VR glasses 60, it becomes possible to check the remaining ammunition count simply by averting one's gaze after firing. This eliminates the need to memorize the count, allowing the user to concentrate on aiming. 【0051】 The preparation of the shooting training system 10 before firing will be explained using Figure 7. Figure 7 is a diagram showing an example of the preparation flow of the shooting training system shown in Figure 1. 【0052】 (Step S1) The user supplies power to the target device 20, the first projector 30, the second projector 40, the input / output processor 50, and the VR glasses 60 (the above five devices are referred to as components), as well as the control device 80, to start up the components and the control device 80. The control device 80 confirms that communication with the components has been established. 【0053】 (Step S2) Based on input from the user, the control device 80 selects a target image to be projected by the first projector 30 and transmits it to the first projector 30. Here, the selected target images include, for example, a 300m rifle target, a 10m air rifle target, and a 50m free pistol target. The first projector 30 projects the target image onto the projection screen 21. 【0054】 (Step S3) Based on input from the user, the control device 80 selects an image to be projected by the second projector 40 and transmits it to the second projector 40. The selected target images include, for example, images highlighting bullet impact points, target images (friend or foe identification, clay target shooting targets, etc.), images simulating various environments (summer shimmer, dust, snow, rain), and images simulating the target's return fire (muzzle flash). The second projector 40 projects projection mapping images onto the projection screen 21 and the background of the projection screen 21. 【0055】 (Step S4) Based on user input, the input / output processor 50 sets the content to be displayed on the VR glasses 60 (impact point or number of rounds). The VR glasses 60 displays the set content (target image or number of rounds). The user, the shooter S, puts on the VR glasses 60 and prepares to fire by aiming the firearm F at the firing position. 【0056】 The shooting training of the shooting training system 10 will be explained using Figure 8. Figure 8 is a diagram showing an example of the shooting training flow of the shooting training system shown in Figure 1. 【0057】 (Step S11) Shooter S aims at target T and fires. 【0058】 (Step S12) The shooter sensor 70 detects the number of rounds fired from the gun G and transmits this information to the input / output processor 50. 【0059】 (Step S13) The detector 22 detects the coordinate data of the projectile impact on the target device 20 and transmits it to the control device 80. 【0060】 (Step S14) The control device 80 processes the impact coordinate data and sets the impact location, including the target. 【0061】 (Step S15) The control device 80 transmits the impact location, including the set target, to the input / output processor 50. 【0062】 (Step S16) The input / output processor 50 processes the received data and transmits the number of bullets or the bullet impact location display data to the VR glasses 60. 【0063】 (Step S17) The control device 80 projects an image from the second projector 40 based on the impact location set in step S14, highlighting the detected impact location. Steps S11 to S17 are then repeated. 【0064】 (Step S18) If the input / output processor 50 has set the display of the remaining ammunition count on the VR glasses 60, the input / output processor 50 will set the replenished remaining ammunition count when ammunition is replenished. 【0065】 The disclosures made by the Disclosers have been described in detail based on embodiments, but it goes without saying that the disclosures are not limited to the embodiments described above and can be modified in various ways. 【0066】 For example, the embodiments described above are explained in detail for a better understanding of the disclosure and are not necessarily limited to those comprising all of the described configurations. 【0067】 For example, the shooting training system 10 may consist of a target device 20, a first projector 30, and a control device 80, without using a second projector 40, an input / output processor 50, VR glasses 60, and a shooter sensor 70. The shooting training system 10 may consist of a target device 20, a first projector 30, a second projector 40, and a control device 80, without using an input / output processor 50, VR glasses 60, and a shooter sensor 70. Alternatively, the shooting training system 10 may consist of a target device 20, a second projector 40, and a control device 80, or a target device 20, VR glasses 60, and a control device 80. Furthermore, the shooting training system 10 may consist of a target device 20, a first projector 20, VR glasses 60, and a control device 80, or a target device 20, a second projector 40, VR glasses 60, and a control device 80. 【0068】 For example, the projection screen of the target device is not limited to a rubber type; it may be of any other configuration as long as it can project targets and firing results and detect the point of impact. 【0069】 Furthermore, while the above-described configurations, functions, and control devices have been explained primarily through examples of creating programs to implement some or all of them, it goes without saying that some or all of them can also be implemented in hardware, for example, by designing them as integrated circuits. In other words, all or part of the functions of the processing unit may be implemented by integrated circuits such as ASICs (Application Specific Integrated Circuits) or FPGAs (Field Programmable Gate Arrays) instead of programs. [Explanation of symbols] 【0070】 20 Target device 21 projection screens 22 detectors 30 The First Projector 31 Light source 36 projection lenses 37 Focusing lens 38 Target image forming means (shadow image forming means or diffraction optical element) 80 Control device

Claims

[Claim 1] A target device having a detector for detecting the point of impact and a projection screen, A first projector that projects a shooting target onto the projection screen, The system includes the aforementioned projection screen and a second projector that projects projection mapping images onto the background area of ​​the aforementioned projection screen, A control device that performs wired or wireless data communication between the target device, the first projector, and the second projector, Equipped with, The first projector comprises a single light source, a focusing lens for focusing the light emitted from the light source, a projection lens, and a shadow-forming means or diffraction optical element provided on the projection lens for projecting an image of the target onto the projection screen. The control device is The ON / OFF state of the aforementioned light source is controlled. The second projector mentioned above, Based on the impact position detected by the aforementioned detector, a highlighting image of the impact location is displayed. Target footage including friend-or-foe identification or clay target shooting targets, Footage simulating summer environments, including fluctuating temperatures, dust, snow, or rain, and A simulated video of muzzle flash caused by the target's return fire. A target system configured to project at least one image. [Claim 2] In the target system of Claim 1, The control device is configured to display the target as a shadow, excluding the area projected by the first projector from the area projected by the second projector. [Claim 3] In the target system of claim 1, further, The control device and an input / output processor having a communication interface for wired or wireless communication, A shooter sensor is provided near the shooter and has a communication interface that communicates with the input / output processor via wired or wireless means. A VR headset worn by the shooter, having a communication interface and display device for wireless communication with the input / output processor, Equipped with, The aforementioned input / output processor is Based on the impact position detected by the detector, display data is created to display the impact location on the display device, or, The remaining ammunition is calculated based on the number of rounds fired detected by the shooter sensor. The VR glasses are configured to display the impact location or the remaining ammunition on the display device as a target system.

Images