Electric adjustable anti-splashing device and control method thereof

Abstract

The invention discloses an electric adjustable anti-splashing device and a control method thereof, and belongs to the technical field of weapon testing devices. Comprising a steel frame, the steel frame comprises a front steel frame body and a rear steel frame body, acrylic plates are arranged in the center of the front steel frame body and the center of the rear steel frame body, electric lifting baffles are vertically arranged on the outer sides of holes, and moving devices are arranged at the bottoms of the front steel frame body and the rear steel frame body. The tops and the two side edges of the front steel frame and the rear steel frame are connected through telescopic shielding curtains, and protection plates are arranged at the bottoms of the front steel frame and the rear steel frame. By the adoption of the structure, the acrylic plate high in hardness and good in light transmission is adopted to replace a steel plate of a traditional target cabin, the electric lifting device with the position adjustable is designed, the hole diameter is reduced, meanwhile, the front anti-splashing effect is improved, and the situation that a bullet rebounds at a small angle to penetrate through a square hole after being impacted is further reduced.

Description

Technical Field

[0001] The invention relates to the technical field of weapon testing devices, in particular to an electrically adjustable anti-splash device and a control method thereof. Background Art

[0002] There are many types of non-lethal weapons, among which non-lethal kinetic weapons are a common weapon used by the current armed police force in handling mass incidents. In order to explore how to achieve "disability" without "loss of life", major universities and research institutes have conducted research on them.

[0003] The velocity of non-lethal kinetic projectiles is an important indicator for this type of research. In order to cooperate with the use of various sensors, such experiments are usually carried out indoors. A major disadvantage of conducting experiments indoors is that the space is small, and the ejection direction of the projectile cannot be controlled after contacting the target, which poses a threat to the safety of the various sensors used with it and the experimental operators. Long-distance design is usually used to avoid risks, but the distance is uncontrollable in actual combat, and close-range experimental results are needed for technical support. In the existing testing process, indoor non-lethal kinetic projectile blunt impact experiments can use a target cabin as a protective device against projectile splashes. The target cabin is usually a square steel structure with a door on the rear side for easy entry and exit of the target (usually a dummy) and the operator, a window on the front, and the rest of the sides are fully enclosed. To ensure firmness, the target cabin is designed to be very thick, which is not convenient for moving and observing the flight posture of the projectile. Summary of the Invention

[0004] The purpose of the present invention is to provide an electrically adjustable anti-splash device and a control method thereof. When a high-speed blunt impact experiment is conducted indoors, after a projectile hits a target, the anti-splash device is used to prevent the projectile from rebounding and causing damage to surrounding equipment and operators. The anti-splash device can be used with various models of target cabins due to its expandable structure, and a high-hardness and high-transmittance acrylic plate is used as the main panel of the isolation door, which ensures safety while also facilitating external observation by the experimenter.

[0005] The present invention provides an electrically adjustable anti-splash device and a control method thereof, comprising a steel frame, wherein the steel frame comprises a front steel frame and a rear steel frame, the centers of the front steel frame and the rear steel frame are both set as acrylic plates, electric lifting baffles are vertically set on the outsides of the holes, the bottoms of the front steel frame and the rear steel frame are both provided with moving devices, the tops and two sides of the front steel frame and the rear steel frame are connected by retractable shade curtains, and the bottoms of the front steel frame and the rear steel frame are provided with protective plates.

[0006] Preferably, the center of the front steel frame is set as three areas, and the acrylic panels of the front steel frame are specifically set as three panels arranged horizontally in sequence. The three acrylic panels have the same height and different widths, and the three acrylic panels are embedded in the front steel frame. A hole is set in the center of the middle acrylic panel, and a camera is set on the inner side above the hole. The acrylic panel of the rear steel frame is set as one panel.

[0007] The moving device includes a fixed angle steel, which is configured as a horizontal triangular column. One side of the triangular column is connected to the bottom of the steel frame. The bottom surface of the triangular column is configured as a bearing surface, and universal moving wheels are provided at the four corners of the bottom of the bearing surface.

[0008] Preferably, the electric lifting baffle includes a control device, the outer surface of the control device is set as a metal shell, and the control device is internally provided with a digital display screen, a power supply, a control chip, a Bluetooth transmission module and a manual lifting control button, the control device is set on the upper plane of the bearing surface, and two aluminum alloy slide grooves are set on the top of the control device, and a sliding acrylic plate is set inside the aluminum alloy slide groove, and a laser rangefinder is set on the side of the sliding acrylic plate, and a shooting hole is set in the center of the sliding acrylic plate, and the outer side of the shooting hole is covered with EPE pearl cotton foam, and a motor-driven pulley device is set on the top or bottom of the sliding acrylic plate to drive the sliding acrylic plate to slide in the aluminum alloy slide groove.

[0009] Preferably, the material of the telescopic shielding curtain is set to nylon cloth, the telescopic shielding curtains on both sides are set to single curtains, the outer edge of the single curtain is set to a metal rod, and several magnetic devices are provided on the metal rod. A limiting rod is provided on the inner side of the single curtain, and the telescopic shielding curtain at the top is set to a double curtain, and the double curtain is specifically set to a sliding groove type double limiting rod.

[0010] Preferably, the protective plate adopts a telescopic structure, and the protective plate is specifically arranged at the bottom of the side curtain.

[0011] A method for controlling an electrically adjustable anti-splash device comprises the following steps:

[0012] There are three control methods for the anti-splash device: manual control, remote control, and automatic control. For manual control, after powering on the control device, the height of the sliding acrylic plate can be adjusted directly using the manual lift control button on the control device.

[0013] The steps for remote control are as follows:

[0014] S1: Power the control device and connect it to the control device using the mobile phone’s Bluetooth module;

[0015] S2: Set the height and the laser rangefinder measures the height;

[0016] S3: The motor drives the pulley device to move the sliding acrylic until the height measured by the laser rangefinder meets the set height;

[0017] S4: Send a notification of height adjustment completion to the mobile phone.

[0018] The automatic control process is as follows: a camera is used to identify the firing hole. When the firing hole is detected to be moving, the height of the firing hole from the ground is identified, and the set height of the firing hole is calculated. The set height is transmitted to the control device in real time, and the height change of the firing hole is monitored in real time, and the set height is changed accordingly. The specific process is as follows:

[0019] An image recognition computing device is additionally provided in the camera, and is connected to the control device by wireless communication. The working process of the image recognition device is as follows:

[0020] The camera is used to collect images in real time, and the YOLO model is used to detect whether the launch hole moves. When the launch hole moves, the launch hole bounding box coordinates output by the YOLO model are combined with the camera calibration parameters to calculate the actual distance between the hole and the ground. According to the previous experimental results, the calculation ratio k is set. The formula is as follows:

[0021] y = kx;

[0022] In the above formula, y is the set height, and x is the height of the firing hole from the ground;

[0023] The calculated set height is transmitted to the control device, which automatically adjusts the height of the shooting hole.

[0024] Therefore, the present invention adopts the above-mentioned electrically adjustable anti-splashing device and control method thereof, which has the following advantages:

[0025] In the present invention, a square hole of appropriate size is opened in the middle of the acrylic plate to ensure that the projectile can complete the experimental shooting within a certain height range. In order to further reduce the small-angle rebound of the projectile after impact and pass through the square hole, an electrically adjustable lifting device is designed. While reducing the aperture, it also improves the front anti-splash effect. In order to improve the degree of automation of the operation, a control chip and a Bluetooth transmission module are installed on the motor. By combining with a laser rangefinder, remote automatic control of the electric lifting of the baffle is completed.

[0026] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1This is an overall structural diagram of an electrically adjustable anti-splash device of the present invention;

[0028] Figure 2 This is a structural diagram of a steel frame in an electrically adjustable anti-splash device of the present invention;

[0029] Figure 3 This is a structural diagram of a telescopic shielding curtain in an electrically adjustable anti-splash device of the present invention;

[0030] Figure 4 This is a structural diagram of an electrically adjustable lifting baffle in an electrically adjustable anti-splash device of the present invention;

[0031] Figure 5 This is a flow chart of a control method of an electrically adjustable anti-splash device of the present invention;

[0032] Figure 6 A schematic diagram of a remote control in an electrically adjustable anti-splash device of the present invention;

[0033] Figure numerals: 1. Steel frame; 12. Acrylic plate; 13. Fixed angle steel; 14. Universal wheel; 15. Hole; 2. Electric lifting baffle; 21. Aluminum alloy slide; 22. Motor-driven pulley device; 23. Sliding acrylic plate; 24. Shooting hole; 25. EPE pearl cotton foam; 26. Laser rangefinder; 27. Digital display; 28. Control device; 29. ​​Manual lifting control button; 3. Retractable curtain; 31. Magnetic device; 32. Metal rod; 33. Nylon cloth; 34. Limit rod; 35. Slide-type double limit rod. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. The specific model specifications need to be selected and determined based on the actual specifications of the device, and the specific selection calculation structure adopts the existing technology in this field, so it will not be described in detail.

[0035] Example

[0036] like Figure 1-4As shown, the present invention provides an electrically adjustable anti-splash device, including a steel frame 1, the steel frame 1 includes a front steel frame and a rear steel frame, the center of the front steel frame is set to an acrylic plate 12, the panel adopts a highly transparent acrylic plate 12, which is convenient for experimental observers to observe the posture of the projectile hitting the internal target from the outside, the center of the front steel frame is set to three areas, and the acrylic plates 12 of the front steel frame are specifically arranged in sequence horizontally. The three acrylic plates 12 have the same height and different widths. The three acrylic plates 12 are arranged in the same direction. 2 are embedded in the three areas of the front steel frame. The center of the middle acrylic plate 12 is provided with a hole 15, through which the projectile can be incident. A camera is provided on the inner side above the hole 15. The camera is used for automatic control process. A miniaturized camera can be used, and an additional protective shell can be provided to protect the camera structure and avoid external impact. An electric lifting baffle 2 is vertically provided on the outer side of the hole 15 to adjust the incident height. The acrylic plate 12 of the rear steel frame is provided as a single piece, which is convenient for observing the shooting effect from other angles.

[0037] The bottom of the front steel frame and the rear steel frame are both provided with a moving device, which is convenient for moving the distance between the steel frames 1, thereby changing the size of the internal space, and can adapt to design targets of different sizes. The moving device includes a fixed angle steel 13, and the fixed angle steel 13 is set as a horizontal triangular column. One side of the triangular column is connected to the bottom of the steel frame 1, and the bottom surface of the triangular column is set as a bearing surface. The four corners of the bottom of the bearing surface are provided with universal moving wheels. In addition to the two sets of universal wheels 14 designed on both sides of the bearing surface, a set of universal wheels 14 that can be stretched forward and backward can be added in the middle of the base. When not in use, it can be retracted into the triangular column. Stretching it out when in use can improve the stability of the overall structure, so that the device will not fall over due to being too high, further enhancing the overall stability.

[0038] The electric lifting baffle 2 includes a control device 28. The outer surface of the control device 28 is set to a metal shell. The metal shell can protect the integrity of the internal components of the control device 28 and avoid falling and collision. The control device 28 is internally provided with a digital display screen 27, a power supply, a control chip, a Bluetooth transmission module and a manual lifting control button 29. The control device 28 is set on the upper plane of the bearing surface. Two aluminum alloy slide grooves 21 are set on the top of the control device 28. A sliding acrylic plate 23 is set inside the aluminum alloy slide groove 21. The sliding acrylic plate 23 moves up and down. A laser rangefinder 26 is set on the side of the sliding acrylic plate 23. The laser rangefinder 26 moves up and down synchronously with the sliding acrylic plate 23 to measure the height of the hollow part from the ground, providing a lifting scale for the experimental operator. Accurate basis, and the measured data can be fed back in time on the digital display screen 27. A shooting hole 24 is set in the center of the sliding acrylic plate 23. The outer side of the shooting hole 24 is covered with EPE pearl cotton foam 25. The detachable EPE pearl cotton foam 25 is composed of Velcro and pearl cotton foam. One side of the Velcro is attached to the sliding acrylic plate 23 according to the size and style, and the Velcro on the other side is attached to the EPE pearl cotton foam 25 according to the size and style. The EPE pearl cotton foam 25 has shock-proof resilience, and the buffering effect remains almost unchanged after multiple impacts. This part of the design can protect the edge of the shooting hole 24 from damage when it is hit. A motor-driven pulley device 22 is set at the top or bottom of the sliding acrylic plate 23 to drive the sliding acrylic plate 23 to slide in the aluminum alloy slide 21;

[0039] The top and both sides of the steel frame 1 are provided with retractable shielding curtains 3, which connect the front steel frame and the rear steel frame through the retractable shielding curtains 3. The material of the retractable shielding curtains 3 is set as nylon cloth 33, which can protect the projectiles that may fly out from the side of the large-sized target cabin. The nylon material is used because nylon has high toughness and soft texture, which can be fixed by the magnetic device 31 to meet the protection requirements; the retractable shielding curtains 3 on both sides of the steel frame 1 are set as single curtains, and the outer edge of the single curtain is set as a metal rod 32. Several magnetic devices 31 are set on the metal rod 32. Three points are set on each side curtain, distributed in the upper, middle and lower positions to facilitate the fixation of the metal rod 32. A limit rod 34 is set on the inner side of the single curtain. There are two limiters on the limit rod 34 to control the length of the stretched nylon cloth 33. The retractable shielding curtain 3 at the top is set as a double curtain. The double curtain is specifically set as a slide-type double limit rod 35. This part is connected by two limit rods 34 through a slide and can be extended to both sides.

[0040] The bottom of the front steel frame and the rear steel frame are provided with protective plates, which adopt a telescopic structure and are specifically arranged at the bottom of the side curtains. The protective plates can prevent projectiles from flying out from the bottom.

[0041] A method for controlling an electrically adjustable anti-splash device comprises the following steps:

[0042] There are three control methods for the anti-splash device: manual control, remote control, and automatic control. For manual control, after powering on the control device, the height of the sliding acrylic plate can be adjusted directly using the manual lift control button on the control device.

[0043] The steps for remote control are as follows:

[0044] S1: Power the control device and connect it to the control device using the mobile phone’s Bluetooth module;

[0045] S2: Set the height and the laser rangefinder measures the height;

[0046] S3: The motor drives the pulley device to move the sliding acrylic until the height measured by the laser rangefinder meets the set height;

[0047] S4: Send a notification of height adjustment completion to the mobile phone.

[0048] The specific process is as follows:

[0049] Click "View All Devices" and select the corresponding device in the open Bluetooth module. Click "Altitude Setting" to enter the set height, which is recorded as x1 in the system, and the adjustment accuracy is 1cm.

[0050] After confirming, click Start. The laser rangefinder will begin its first measurement. The measurement result is recorded as x2. The system will make a difference between the two measurement results and record it as e=x1-x2. Then the system will make a judgment. If e is a negative value, the system will determine that the measurement value is higher than the set value and send a command to the motor to adjust downward. The adjustment height is equal to the absolute value of e. Similarly, if e is a positive value, the system will determine that the measurement value is lower than the set value and send a command to the motor to adjust upward. The adjustment height is equal to the absolute value of e.

[0051] At this time, the measurement result interface displays "Adjustment in progress". After the adjustment is completed, the measurement result displays "Adjustment completed, height x meters".

[0052] A Bluetooth module for step-by-step manual measurement is also provided, which can be adjusted up and down on the app. Click the up and down buttons once to adjust the motor by 1cm, and long press it once to adjust it by 5cm. After each adjustment, the laser rangefinder starts measuring and transmits the data back to the "Measurement" interface for display.

[0053] After adjusting to the desired height for each experiment, you need to lock the screen to avoid accidental touches that could cause the motor to suddenly activate and cause unnecessary trouble. Press and hold the lock icon for 3 seconds to lock the app. The icon will change to a locked state, and all buttons on the screen will be unselectable. To unlock it again, press and hold the lock icon for 3 seconds. The icon will change to an unlocked state, and the app can be unlocked and operated.

[0054] The automatic control process is as follows: a camera is used to identify the firing hole. When the firing hole is detected to be moving, the height of the firing hole from the ground is identified, and the set height of the firing hole is calculated. The set height is transmitted to the control device in real time, and the height change of the firing hole is monitored in real time, and the set height is changed accordingly. The specific process is as follows:

[0055] An image recognition computing device is set in the camera inside the acrylic plate, and wireless communication, such as Bluetooth network, is used to connect the image recognition computing device to the control device. The working process of the image recognition device is as follows:

[0056] The camera is used to collect images in real time, and the YOLO model is used to detect whether the launch hole moves. When the launch hole moves, the launch hole bounding box coordinates output by the YOLO model are combined with the camera calibration parameters to calculate the actual distance between the hole and the ground. According to the previous experimental results, the calculation ratio k is set. The formula is as follows:

[0057] y = kx;

[0058] In the above formula, y is the set height, and x is the height of the firing hole from the ground;

[0059] The calculated set height is transmitted to the control device, which automatically adjusts the height of the shooting hole.

[0060] Therefore, the present invention adopts an electrically adjustable anti-splash device and a control method thereof. Due to the shortcomings of the target cabin used in indoor experiments, which is heavy and inconvenient to move and observe, an electrically adjustable anti-splash isolation door is designed for the target cabin. An acrylic plate with high hardness and good light transmittance is used instead of the steel plate of the traditional target cabin to ensure that the projectile will not splash out when it passes through the acrylic plate and hits the target and rebounds. A retractable shielding curtain is designed for the steel frame. By extending it to a maximum of 1 times the width of the current design size, all-round protection of the target cabin can be achieved, which can be used to match different shooting spaces.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An electrically adjustable anti-splash device, characterized in that: It includes a steel frame, which includes a front steel frame and a rear steel frame. The centers of the front steel frame and the rear steel frame are both set with acrylic plates. Electric lifting baffles are vertically set on the outside of the holes. Moving devices are set at the bottoms of the front steel frame and the rear steel frame. The tops and two sides of the front steel frame and the rear steel frame are connected by retractable shade curtains. Protective plates are set at the bottoms of the front steel frame and the rear steel frame.

2. The electrically adjustable anti-splash device according to claim 1, characterized in that: The center of the front steel frame is set as three areas, and the acrylic panels of the front steel frame are specifically set as three panels arranged horizontally in sequence. The three acrylic panels have the same height and different widths. The three acrylic panels are embedded in the front steel frame, and a hole is set in the center of the middle acrylic panel, and a camera is set on the inner side above the hole. The acrylic panel of the rear steel frame is set as one panel. The moving device includes a fixed angle steel, which is configured as a horizontal triangular column. One side of the triangular column is connected to the bottom of the steel frame. The bottom surface of the triangular column is configured as a bearing surface, and universal moving wheels are provided at the four corners of the bottom of the bearing surface.

3. The electrically adjustable anti-splash device according to claim 2, characterized in that: The electric lifting baffle includes a control device, the outer surface of which is set as a metal shell, and a digital display screen, a power supply, a control chip, a Bluetooth transmission module and a manual lifting control button are set inside the control device. The control device is set on the upper plane of the bearing surface, and two aluminum alloy slide grooves are set on the top of the control device. A sliding acrylic plate is set inside the aluminum alloy slide groove, a laser rangefinder is set on the side of the sliding acrylic plate, a shooting hole is set in the center of the sliding acrylic plate, and the outer side of the shooting hole is covered with EPE pearl cotton foam. A motor-driven pulley device is set on the top or bottom of the sliding acrylic plate to drive the sliding acrylic plate to slide in the aluminum alloy slide groove.

4. The electrically adjustable anti-splash device according to claim 3, characterized in that: The material of the telescopic shielding curtain is set to nylon cloth, the telescopic shielding curtains on both sides are set to single curtains, the outer edge of the single curtain is set to a metal rod, and several magnetic devices are set on the metal rod. A limiting rod is set on the inner side of the single curtain, and the telescopic shielding curtain at the top is set to a double curtain, and the double curtain is specifically set to a sliding groove type double limiting rod.

5. The electrically adjustable anti-splash device according to claim 4, characterized in that: The protective plate adopts a telescopic structure and is specifically arranged at the bottom of the side curtain.

6. A control method for an electrically adjustable anti-splashing device, comprising the electrically adjustable anti-splashing device according to any one of claims 1 to 3, characterized in that: The following steps are involved: There are three control methods for the anti-splash device: manual control, remote control, and automatic control. For manual control, after powering on the control device, the height of the sliding acrylic plate can be adjusted directly using the manual lift control button on the control device. The steps for remote control are as follows: S1: Power the control device and connect it to the control device using the mobile phone’s Bluetooth module; S2: Set the height and the laser rangefinder measures the height; S3: The motor drives the pulley device to move the sliding acrylic until the height measured by the laser rangefinder meets the set height; S4: Send a notification of height adjustment completion to the mobile phone. The automatic control process is as follows: a camera is used to identify the firing hole. When the firing hole is detected to be moving, the height of the firing hole from the ground is identified, and the set height of the firing hole is calculated. The set height is transmitted to the control device in real time, and the height change of the firing hole is monitored in real time, and the set height is changed accordingly. The specific process is as follows: An image recognition computing device is set in the camera inside the acrylic plate, and the image recognition computing device is connected to the control device by wireless communication. The working process of the image recognition device is as follows: The camera is used to collect images in real time, and the YOLO model is used to detect whether the launch hole moves. When the launch hole moves, the launch hole bounding box coordinates output by the YOLO model are combined with the camera calibration parameters to calculate the actual distance between the hole and the ground. According to the previous experimental results, the calculation ratio k is set. The formula is as follows: y = kx; In the above formula, y is the set height, and x is the height of the firing hole from the ground; The calculated set height is transmitted to the control device, which automatically adjusts the height of the shooting hole.

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