A training device for four-point aiming method and a laser positioning method thereof

Abstract

This invention relates to the field of military shooting training, specifically to a training device for the four-point aiming method and its laser positioning method. The training device for the four-point aiming method of this invention includes a base, a lifting mechanism on the base, and a support plate on the lifting mechanism; it also includes a display and a simulated gun. In this invention, the target is located on the display and its position remains unchanged. Accurate aiming is achieved by moving the gun, simulating moving gun aiming under real-world conditions, thus enhancing realism. This invention allows for four-point aiming training in small environments such as dormitories, grasslands, and indoor spaces. The aiming point determination process does not require two people and can be completed by a single person. The aiming results and scores are obtained through a processor, eliminating human influence.

Description

Technical Field

[0001] The present invention relates to the field of military shooting training, and particularly relates to a training device for the four-point aiming method and its laser positioning method. Background Art

[0002] In military training, the "four-point aiming method" training is often regarded as an important content of rifle or crossbow shooting training for fixed targets, and it is an effective method to exercise and check the accuracy of the shooter's aiming point and improve the aiming speed.

[0003] Traditional four-point aiming mainly solves the problem of aiming consistency. During four-point aiming training, the firearm is placed on a support. A fixed white paper target is set 15 meters in front of the firearm. The target indicator fixes the inspection target (four-point aiming checker) on the white paper target, and then the coach or excellent shooter aims at the inspection target. After aiming, the target indicator marks an "×" with the aiming point of the coach as the reference point through the round hole in the center of the inspection target. At the same time, the coach's firearm is fixed, and the target indicator removes the inspection target; then the trainee aims without moving the firearm, and the target indicator is directed to move the inspection target to form a correct aiming and mark it. This is carried out three times. If the aiming points of the trainee for three times can be nested within a round hole with a diameter of 10 mm on the handle of the inspection target, it is considered qualified; if it can be nested within a round hole with a diameter of 5 mm, it is considered good; if it can be nested within a round hole with a diameter of 3 mm, it is considered excellent.

[0004] During traditional four-point aiming, since the moving target does not move the firearm while the actual action is to move the firearm without moving the target, the deviation in direction and height between the marked point and the reference point is exactly opposite to the deviation during actual shooting. Traditional four-point aiming requires a sufficiently large training ground, and generally, two people are required to cooperate to complete the training with an inspection target, resulting in relatively low training efficiency. Moreover, the marking of the aiming marked point is strongly affected by humans, which is likely to cause the unreality of the results. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a training device for the four-point aiming method and its laser positioning method.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions for implementation.

[0007] (1) A training device for the four-point aiming method, comprising a base, on which a lifting mechanism is provided, and a support plate is provided on the lifting mechanism; the lifting mechanism is used to adjust the height of the support plate;

[0008] It further includes a display, which is vertically located in front of the support plate, and the display is fixedly connected to the support plate through a connecting rod; the display is used to display the reference point and the training result; the reference point is located at the center of the display;

[0009] The back of the display is equipped with a laser recognition and positioning module and a processor; the laser recognition and positioning module is used to identify the laser and obtain the laser's illumination position on the display, and send the laser illumination position to the processor; the processor is used to receive the laser illumination position and obtain the training score based on the laser illumination position.

[0010] It also includes a replica gun, which includes a barrel, receiver, front sight, peep sight, trigger, and stock; the receiver contains a control chip and battery, the trigger has a pressure sensor, and the front sight has a laser emitter; the laser emitter's laser emission direction is consistent with the aiming direction of the replica gun.

[0011] The battery powers the control chip, pressure sensor, and laser emitter; the control chip controls the laser emitter to emit laser light when the pressure sensor receives a pressure greater than or equal to a set value.

[0012] (2) A laser positioning method for a training device using a four-point aiming method, comprising the following steps:

[0013] Step 1: The laser recognition and positioning module establishes a rectangular coordinate system on the display.

[0014] Step 2: Divide the display into N horizontal lines and M vertical lines evenly. The spacing between the horizontal lines and the spacing between the vertical lines are both d, and d < laser diameter < 2d.

[0015] Let the horizontal lines be numbered as follows: , =1,2,3…,N; The vertical lines are numbered b, b=1,2,3…,M;

[0016] Step 3: When the laser shines on the display, the laser recognition and positioning module determines the laser coordinates based on the number and number of straight lines blocked by the laser in the horizontal and vertical directions.

[0017] When the laser blocks one horizontal line and one vertical line, the laser coordinates are: ;

[0018] When the laser blocks two horizontal lines and one vertical line, the laser coordinates are: ;

[0019] When the laser blocks one horizontal line and two vertical lines, the laser coordinates are: ;

[0020] When the laser blocks two horizontal lines and two vertical lines, the laser coordinates are:

[0021] .

[0022] Compared with the prior art, the beneficial effects of the present invention are: (1) The target is located on the display and its position remains unchanged. Accurate aiming is achieved by moving the gun, which simulates the aiming of a moving gun under real conditions and is more realistic; (2) Four-point aiming training can be carried out in small environments such as dormitories, grasslands, and indoor areas; (3) The aiming point determination process does not require two people to operate and can be completed by a single person; (4) The aiming results and scores are obtained through the processor, eliminating human influence factors. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the overall structure of a training device embodiment for the four-point aiming method of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the simulation gun in an embodiment of the training device for the four-point aiming method of the present invention.

[0026] Figure 3 This is a partial structural schematic diagram of a simulated gun in an embodiment of the training device for the four-point aiming method of the present invention.

[0027] Figure 4 This is a schematic diagram showing four laser positions on a display screen, representing an embodiment of the laser positioning method of the training device for the four-point aiming method of the present invention.

[0028] Figure 5 This is a schematic diagram of the chest ring target position in an embodiment of the training device for the four-point aiming method of the present invention.

[0029] Explanation of reference numerals in the attached drawings: 1. Base; 2. Lifting mechanism; 3. Support plate; 4. Display; 5. Simulated gun; 501. Barrel; 502. Body; 503. Front sight; 504. Piercing sight; 505. Trigger; 506. Stock; 507. Laser emitter. Detailed Implementation

[0030] The embodiments of the present invention will be described in detail below with reference to examples. However, those skilled in the art will understand that the following examples are only for illustrating the present invention and should not be regarded as limiting the scope of the present invention.

[0031] refer to Figure 1 A training device for four-point aiming includes a base 1, a lifting mechanism 2 on the base 1, and a support plate 3 on the lifting mechanism 2; the lifting mechanism 2 is used to adjust the height of the support plate 3 so that the height of the support plate 3 is adapted to the aiming height of the trainee.

[0032] It also includes a display 4, which is vertically positioned in front of the tray 3 and is fixedly connected to the tray 3 via a connecting rod; the display 4 is used to display the reference point and training results; the reference point is located at the center of the display 4.

[0033] The back of the display 4 is equipped with a laser recognition and positioning module and a processor; the laser recognition and positioning module is used to identify the laser and obtain the laser's illumination position on the display, and send the laser illumination position to the processor; the processor is used to receive the laser illumination position and obtain the training score based on the laser illumination position.

[0034] refer to Figure 2 It also includes a replica gun 5, which comprises a barrel 501, a receiver 502, a front sight 503, a peep sight 504, a trigger 505, and a stock 506. The receiver 502 houses a control chip and a battery, and the trigger 505 is equipped with a pressure sensor. Figure 3 A laser emitter 507 is installed on the crosshair 503; the laser emission direction of the laser emitter 507 is consistent with the aiming direction of the simulation gun 5.

[0035] The battery powers the control chip, pressure sensor, and laser emitter 507; the control chip controls the laser emitter 507 to emit a laser when the pressure sensor receives a pressure greater than or equal to a set value.

[0036] Furthermore, the barrel 501 is marked with a vertical reference line, and the sum of the distance between the reference line and the front sight 503 and the distance between the display 4 and the rear edge of the tray 3 is 1m.

[0037] Furthermore, the processor obtains the training score based on the laser illumination position. Specifically, if the distance between the laser illumination position and the reference point is less than 1mm in all three shots taken by the trainee, the training score is qualified; otherwise, it is unqualified. If the distance between the laser illumination position and the reference point is less than 0.5mm in all three shots taken by the trainee, the training score is good. If the distance between the laser illumination position and the reference point is less than 0.3mm in all three shots taken by the trainee, the training score is excellent.

[0038] Furthermore, the display 4 is also used to display the chest ring target and the number of firing rings; the chest ring target has a size of 5mm*5mm on the display 4; the center of the chest ring target coincides with the center of the display 4.

[0039] Furthermore, the processor pre-stores the position of the chest ring target on the Cartesian coordinate system established by the laser identification and positioning module on the display 4, and obtains the number of rings shot based on the laser illumination position on the display 4 obtained by the laser identification and positioning module.

[0040] A force feedback device is installed in the stock 506 of the simulated gun 5. When the pressure sensor receives a pressure greater than or equal to the set value, the control chip simultaneously controls the force feedback device to start: causing the fixed solenoid to generate a magnetic field, which drives the moving iron core firing pin to move along the motion constraint device, thereby impacting the stock 506 and generating a simulated recoil force to simulate a real shooting scenario and increase the realism of training.

[0041] A laser positioning method for a four-point aiming training device includes the following steps:

[0042] Step 1: The laser recognition and positioning module establishes a rectangular coordinate system on the display.

[0043] Step 2: Divide the display into N horizontal lines and M vertical lines evenly. The spacing between the horizontal lines and the spacing between the vertical lines are both d, and d < laser diameter < 2d.

[0044] Let the horizontal lines be numbered as follows: , =1,2,3…,N; The vertical lines are numbered b, b=1,2,3…,M;

[0045] Step 3, refer to Figure 3 When the laser shines on the display, the laser recognition and positioning module determines the laser coordinates based on the number and number of straight lines blocked by the laser in the horizontal and vertical directions:

[0046] When the laser blocks one horizontal line and one vertical line, the laser coordinates are: ;

[0047] When the laser blocks two horizontal lines and one vertical line, the laser coordinates are: ;

[0048] When the laser blocks one horizontal line and two vertical lines, the laser coordinates are: ;

[0049] When the laser blocks two horizontal lines and two vertical lines, the laser coordinates are: .

[0050] Specific usage instructions:

[0051] The trainee assumes a prone, supported position with the rifle, placing the barrel 501 on the support plate 3. The lifting mechanism 2 is adjusted to bring the support plate 3 to a suitable height. The reference line on the barrel 501 is then aligned with the rear edge of the support plate 3, and the trainee performs prone aiming and firing. The trainee uses their eyes to look through the peephole 504 and front sight 503 on the simulated rifle to aim at the reference point in the center of the display 4. After aiming, the trainee pulls the trigger 505. When the pressure sensor receives a pressure greater than or equal to the set value, the control chip controls the laser emitter 507 to emit a laser. The laser identification and positioning module identifies the laser and obtains the laser's irradiation position on the display 4, and sends the laser irradiation position to the processor.

[0052] After three aiming shots, the processor calculates the training score based on the laser illumination positions of the trainee's three aiming shots, and the display 4 shows the training score. At the same time, the processor calculates the number of rings based on the laser illumination positions of the trainee's three aiming shots and the position of the chest ring target, and the display 4 shows the number of rings.

[0053] refer to Figure 4 The laser identification and positioning module divides the display into N=300 horizontal lines and M=300 vertical lines to establish a rectangular coordinate system. The center of the chest ring target coincides with the center of the display, meaning the center coordinates of the chest ring target are (150d, 150d). The calculated expression for the outer contour of the chest ring target is as follows:

[0054]

[0055] Then the set of all points inside the chest ring target can be obtained as follows:

[0056] (1)

[0057] If the laser irradiation position satisfies equation (1), it is considered to be on target; otherwise, it is considered to be off target.

[0058] The set of all points within each ring of the chest target is as follows:

[0059] (2)

[0060] If equations (1) and (2) are stored in the processor, the processor will receive the laser irradiation position. When the laser irradiation position satisfies equation (1), the number of firing rings will be obtained according to equation (2).

[0061] Although the present invention has been described in detail in this specification with general description and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention are within the scope of protection claimed by the present invention.

Claims

1. A training device for four point sight, characterized in that, It includes a base, a lifting mechanism on the base, and a support plate on the lifting mechanism; the lifting mechanism is used to adjust the height of the support plate. It also includes a display, which is vertically positioned in front of the tray and is fixedly connected to the tray by a connecting rod; the display is used to show the reference point and training results; the reference point is located at the center of the display. The back of the display is equipped with a laser recognition and positioning module and a processor; the laser recognition and positioning module is used to identify the laser and obtain the laser's illumination position on the display, and send the laser illumination position to the processor; the processor is used to receive the laser illumination position and obtain the training score based on the laser illumination position. It also includes a replica gun, which includes a barrel, receiver, front sight, peep sight, trigger, and stock; the receiver contains a control chip and battery, the trigger has a pressure sensor, and the front sight has a laser emitter; the laser emitted by the laser emitter is in the same direction as the aiming direction of the replica gun. The battery powers the control chip, pressure sensor, and laser emitter; the control chip controls the laser emitter to emit laser light when the pressure sensor receives a pressure greater than or equal to a set value. The barrel is marked with a vertical reference line, and the sum of the horizontal distance between the reference line and the front sight and the horizontal distance between the display and the rear edge of the tray is 1m. The processor calculates training scores based on the laser illumination position. Specifically, a passing score is achieved when the distance between the laser illumination position and the reference point is less than 1mm in all three attempts; otherwise, it is considered a failing score. A good score is achieved when the distance between the laser illumination position and the reference point is less than 0.5mm in all three attempts; and an excellent score is achieved when the distance between the laser illumination position and the reference point is less than 0.3mm in all three attempts. The target is displayed on the monitor, and accurate aiming is achieved by moving the gun. The laser positioning method of the training device for the four-point aiming method includes the following steps: Step 1: The laser recognition and positioning module establishes a rectangular coordinate system on the display. Step 2: Divide the display into N horizontal lines and M vertical lines evenly. The spacing between the horizontal lines and the spacing between the vertical lines are both d, and d < laser diameter < 2d. Let the horizontal lines be numbered as follows: , =1,2,3…,N; the vertical lines are numbered as follows: b = 1, 2, 3, ..., M; Step 3: When the laser shines on the display, the laser recognition and positioning module determines the laser coordinates based on the number and number of straight lines blocked by the laser in the horizontal and vertical directions. When the laser blocks one horizontal line and one vertical line, the laser coordinates are: ; When the laser blocks two horizontal lines and one vertical line, the laser coordinates are: ; When the laser blocks one horizontal line and two vertical lines, the laser coordinates are: ; When the laser blocks two horizontal lines and two vertical lines, the laser coordinates are: .

2. The training device for the four-point aiming method according to claim 1, characterized in that, The display is also used to display the chest target and the number of firing rings; the chest target has a size of 5mm*5mm on the display; the center of the chest target coincides with the center of the display.

3. The training device for the four-point aiming method according to claim 2, characterized in that, The processor pre-stores the position of the chest ring target on the rectangular coordinate system established on the display by the laser identification and positioning module, and obtains the number of rings shot based on the laser illumination position on the display obtained by the laser identification and positioning module.

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