EP3348953B1 - Device for determining the accuracy of a shooter - Google Patents

Description

The present invention relates to a device for the electronic and automatic determination of the marksmanship of a shooter during light shooting. Furthermore, the present invention relates to a firearm with a light source, the trigger of which is connected to the light source. The present invention also relates to an evaluation system which determines the accuracy of a marksman from the information of the detected signal.

Light shooting systems are often used in the area of sports shooters and in the training of shooters. A light source, for example a laser, is mounted on a rifle. The shooter points the rifle, and with it the laser, at a target. The light beam is expediently detected when the trigger of the weapon is actuated. The position of the light spot on the target can be determined from the position of the light spot with a detector. An evaluation unit can determine the position of the light point relative to the ideal target position.

The advantage of this solution is, on the one hand, that the marksmanship of a marksman can be determined inexpensively, since no consumables such as a projectile have to be used and, moreover, the target is not damaged by a projectile. On the other hand, optical measurement has the advantage of high measuring accuracy.

Such an optical measuring system for determining the marksmanship of a marksman is, for example, from the WO 92/08093 known.

There may also be a need to determine the identity of the rifle, and thus the shooter. To solve this problem, the German patent application DE 40 07 759 A1 proposed a system in which the laser signal has a coding, for example to determine which shooter has hit the target.

The patent deregistration US 2011/003269 A1 relates to an infrared weapon target and trigger detection system that includes infrared emission diodes that is modulated in two modes to train first responders. In particular, the invention relates to an infrared target detection system with recoil sensors and modulated infrared emission diodes.

The patent also relates to US 4,592,554 equipment for simulating the firing of at least one projectile from a weapon to a target so that a beam of electromagnetic radiation replaces the trajectory of the projectile.

Furthermore, the patent registration concerns US 2005/153262 A1 a firearm laser training system that uses adjustable target assemblies and / or a laser sensing body gear to simulate various training scenarios.

In order to increase the sensitivity when shooting lights, the German patent specification DE 42 25 074 C1 proposed a device to control the shutter of a CCD camera with a modulated light beam. The light signal is modulated depending on the position of the trigger. A first camera detects the modulated light beam. As soon as the trigger is pressed, which corresponds to firing a shot when shooting with a projectile, the shutter of a second camera is opened and the The position of the light signal is measured with a second camera. Interference signals, for example caused by stray light, can thereby be reduced.

However, this arrangement has difficulties in determining a hit position from the position of the light point, as would arise in real shooting. In contrast to light shooting, in which the hit position is determined from the position of the light point, the hit position in real shooting is influenced by the path of the projectile. The path of a floor can be described by different phases in succession. In each of these phases, the path of the projectile is changed by external influences. For example, the path of the projectile is affected by the movement of the firearm at the time the shot is fired. Every acceleration or constant movement leads to a momentum transfer to the projectile. In addition, the projectile's further path is influenced by the fact that the projectile is guided through the barrel of the firearm. In addition, due to gravity, the shot trajectory changes as soon as the projectile has left the barrel.

Therefore, there is still a need to improve light shooting in such a way that a hit position can be determined from the data during light shooting, as would occur when shooting with a projectile. There is also a need to give a shooter feedback about the individual shooting phases in order to optimally train the marksmanship.

This object is solved by the subject matter of the independent claim. Advantageous developments of the present invention are the subject of the dependent claims.

The present invention is based on the idea of designing a device for determining the marksmanship of a shooter in such a way that a radiation source is mounted on a firearm with a trigger. The trigger has at least two positions and the trigger is connected to the radiation source. The radiation source emits a modulated light beam, the modulated light beam containing information about the position of the trigger. According to the present invention, the device includes at least one detector for detecting the modulated light beam. Furthermore, the device comprises an evaluation unit, which evaluates the detected and modulated light beam. An evaluation signal is generated from the detected position and the information about the position of the trigger, which contains information about the marksman's accuracy. Because the modulated light beam contains information about the position of the trigger, influences on the firing path can be taken into account, such as those that arise during real shooting with one projectile. As a result, it is possible that a hit position which is equivalent to the hit position when shooting with a projectile can be determined from the detected data during light shooting.

Furthermore, the marksman's marksmanship can be trained from the information about the location and the information about the position of the trigger. A real shot consists of different shot phases that correlate with positions of the trigger. By modulating the light signal depending on the position of the trigger, individual shot phases can be identified and evaluated. Based on this data, a shooter can optimize every shooting phase and thus train marksmanship efficiently.

A first position of the trigger advantageously corresponds to a neutral position of the trigger and a second position of the trigger corresponds to a position in which a pressure point of the trigger has been reached. From the first neutral position of the trigger, the phase of the shot in which the shooter is looking for the target can be evaluated. From the second position of the trigger, the phase of the shot can be examined in which the shooter has the target in sight.

Advantageously, a third position of the trigger corresponds to a position in which a shot is triggered during real shooting, and a fourth position of the trigger corresponds to a position after the triggering of a shot. From the third position of the trigger, information can be gathered about how the rifle behaves during the triggering of the shot. From the fourth position, the behavior of the rifle can be analyzed when making additional shots. In addition, with an adjustable time after the third position, the movement of the position of the light point on the target between the triggering of the shot and the free flight of a projectile, also referred to as the hold-up time, can be taken into account during light shooting. In addition, another freely adjustable time can be used to take into account how gravity would affect a real projectile if it was no longer guided through the gun barrel.

An easier detection of the light beam is possible if the light beam is aligned and is preferably a parallel light beam. The radiation source is preferably a laser. This can improve the evaluation of the position of the light point.

In a particularly advantageous manner, the radiation source emits a light beam with a wavelength from the ultraviolet, visual or infrared spectral range. An optical visible light beam can be advantageous because the shooter sees where the light beam hits. Thus, an optically visible light beam allows shooters with little experience to be trained. A light beam from the non-visible area can be advantageous if experienced shooters are to be trained. The point of light is not visible to the shooter and thus the shooting can be trained realistically like with a real projectile.

The light beam is advantageously modulated by changing the pulse duration of the light beam and / or changing the wavelength of the emitted radiation.

The device can further comprise a target which is arranged in such a way that the shooter sends the light beam onto the target to determine the accuracy. This makes it possible for the shooter to be given a clear target.

In an advantageous embodiment, at least one detector comprises a target. In this embodiment, the detector surface is used as a target and for detecting the position and / or the detection of the modulated information of the light beam. In this embodiment, the precision can be increased since no optics are necessary to detect the position of the light beam on the detector. As a result, errors caused by using optics can be avoided. When detecting the modulation of the light beam, errors can be avoided which arise from the fact that air turbulence occurs between the target and the detector.

A simple and unambiguous evaluation is ensured in that the position of the light beam is determined relative to an ideal target position on the target.

It is particularly advantageous if the firearm can also fire a projectile. This makes it possible to calibrate the hit position during light shooting based on the bullet trajectory of a real bullet. Advantageously, the target can electronically determine the position of the projectile through a target area. This data can thus be transmitted to the evaluation unit in electronic form for calibration.

In a further advantageous embodiment, at least one detector of the device comprises a first camera. The distance between the first camera and the target is adjustable and is at least 10 mm, maximum 100 mm and preferably 40 mm. By mounting the camera near the target, the target can be optimal be resolved. The device advantageously comprises a second camera, the second camera being at the same distance from the target as the first camera. In addition, a first axis is determined by the first camera and the ideal hit position and a second axis is determined by the second camera and the ideal hit position. The angle between the first axis and the second axis is at least 45 °, at most 135 °, preferably 90 °.

The system can be set up flexibly and inexpensively by using at least one camera. In addition, a second camera enables the position of the light beam to be detected with high precision in two independent axes relative to the ideal target position.

The device according to the invention for determining the marksmanship of a marksman can of course also include a display for displaying the evaluation signal.

For a better understanding of the present invention, this will be explained in more detail using the exemplary embodiments shown in the following figures. The same parts are provided with the same reference symbols and the same component designations. Furthermore, some features or combinations of features from the different embodiments shown and described can also represent independent, inventive or inventive solutions.

Fig. 1

eine schematische Darstellung der Vorrichtung zum Ermitteln der Treffsicherheit eines Schützen gemäß einer vorteilhaften Ausführungsform der vorliegenden Erfindung;

Fig. 2

eine detaillierte Darstellung der Zielscheibe aus Figur 1.

Show it:

Fig. 1

a schematic representation of the device for determining the accuracy of a marksman according to an advantageous embodiment of the present invention;

Fig. 2

a detailed representation of the target Figure 1 .

Figure 1 shows a schematic representation of the device for determining the accuracy of a marksman according to an advantageous embodiment of the present invention.

In the embodiment shown, a radiation source, also referred to as a light pointer, is mounted on a firearm 100, for example a rifle or a pistol, or alternatively integrated in the firearm 100. The firearm has a trigger 101 which is coupled to the radiation source. By coupling the trigger 101 to the radiation source the emitted light beam can be modulated depending on the position of the trigger 101.

There is advantageously a position in which the trigger 101 is not actuated, which is referred to as the first position or neutral position of the trigger 101. A second position corresponds to a position when the pressure point of trigger 101 is reached. In addition, a third position of the trigger 101 can be achieved, which corresponds to a position of the trigger 101 in real shooting when the shot is triggered. A further, fourth position of the trigger 101 corresponds to holding the trigger after the shot until it is released in real shooting.

Due to the different position of the trigger 101, different phases in light shooting can be defined. In real shooting, the "neutral" phase corresponds to actuating trigger 101 before the pressure point is reached. In real shooting, the "Attention" phase corresponds to actuating trigger 101 between reaching the pressure point and triggering the shot. The "shot" phase corresponds to the triggering of the shot in real shooting. In real firing, the "refill" phase corresponds to holding trigger 101 after the shot until the trigger is released. In addition or as an alternative to the position of the trigger 101, the modulated light beam can also contain information about the trigger phase.

In addition, the modulated light beam can contain information about the identity of the firearm, and thus of the shooter. The light beam can be modulated, for example, via the wavelength of the emitted light or by changing the pulse duration of the emitted light signal.

Furthermore, in the embodiment shown, the radiation source generates a parallel and aligned beam, such as can be generated by a laser, for example. The frequency of the light beam can be in the frequency range which is visible or invisible to humans (for example infrared or ultraviolet).

Furthermore shows Figure 1 a target 103 onto which the emitted light beam is projected. The target is in Figure 2 presented in detail. The projected light point 104 strikes the target 103 relative to an ideal target position. For example, the center of the hatched area in Figure 2 To be defined. Unless otherwise specified by the user, the coordinates of the position of the light point 104 thus relate to the center of the target 103.

Figure 1 also shows two light detectors 102, which are advantageously equipped with imaging optics and are also referred to below as cameras or detectors. The light detectors 102 detect the position of the modulated light point 104 relative to the ideal hit position. To determine the position of the light point 104, it is advantageous that two light detectors 102 are used. The two light detectors 102 are attached such that, for example, one detector 102 is directed at the target 103 from above and a second detector 102 is directed at the target 103 from the side. If you think of a circle around the target 103, the detectors 102 on the circle are offset by 90 °. Since the two detectors 102 are mounted relatively close to the target 103, advantageously at a distance of 40 mm, the circular target field is depicted as an ellipse due to the viewing angle. In the case of the detectors 102 offset by 90 °, the ellipses to be evaluated are also offset by 90 °. Each detector 102 evaluates one axis with high resolution and one axis with low resolution. For this reason, at least two detectors 102 are advantageous for the task in order to image both axes with high resolution.

Furthermore, the detectors 102 detect the modulated information of the light beam. The information can contain the unique identity of the firearm 100, and thus the shooter. In addition, the modulated light beam contains the information about the trigger phase and / or the information about the position of the trigger 101.

The detectors 102 transfer the detected information to an evaluation unit. The evaluation unit analyzes the information and determines an evaluation signal that contains information about the marksman's accuracy. The marksman's marksmanship can be displayed on the marksman monitor 105. The evaluation unit is preferably integrated in the rifle monitor 105. A rifle monitor 105 with an integrated evaluation unit can be, for example, a mobile end device such as a tablet, a smartphone, or a smart watch or a stationary end device such as a monitor with a processor unit.

The marksman's marksmanship is determined by the following steps. The radiation source, which is coupled to the trigger 101 of the firearm 100, emits a modulated light signal, the modulated light signal containing information about the position of the trigger 101 of the firearm 100. A detector 102 detects the position and the modulated information of the light signal. The detected light signal is evaluated by an evaluation unit, the accuracy of a marksman being determined by the evaluation. An evaluation signal is generated based on the evaluation.

In an advantageous embodiment, the accuracy is determined as follows. The position of the light point 104 is measured for an adjustable time in the shot phase. The adjustable time measures the movement of the light point 104 on the target 103 between the triggering of the shot and the time at which a real projectile would no longer be guided by the barrel. This allows the tracking time to be taken into account and the determined position of the hit during light shooting is comparable to the position when shooting with a real projectile. In addition, a change in the trajectory due to the earth's attraction for the flight time between the firearm 100 and the target 103 can be taken into account for the projectile path.

In a further advantageous embodiment, the course of the light spot 104 is detected on the target 103 while aiming. The entire route can be analyzed. The target route consists of the "neutral", "caution", "shot" and "refill" phases. The target route can be displayed on the rifle monitor 105 and the different phases can be coded, for example, by different colors or different symbols in the target route. In addition, the hit position can be drawn in the displayed route.

Additionally or alternatively, the course of the target path between the most recent position of the light point 104 and a temporally adjustable previous position of the light point 104 can be represented. This can be done, for example, in the form of a line. For example, the length of the line may be proportional to the speed at which firearm 100 is moved. For example, the direction of the line may be the direction in which firearm 100 is moved. In addition, the current position of the light point 104 and or the hit position on the rifle monitor 105 can be clearly identified. Symbols such as an asterisk or a cross can be used to indicate the current position. Furthermore, the firing phases "neutral", "caution", "shot" and "refill" can also be displayed, for example by means of color information.

This enables the shooter to examine the different phases of the target path and to improve his accuracy based on the evaluation.

In a further embodiment, the light shooting is combined with a real shot. The target 103 is an electronic target 103, which transfers the real hit position to the evaluation unit. In addition, the light signal is detected.

An algorithm determines the hold-up time and the free fall of the real projectile between weapon 100 and target 103 based on the target path coordinates, the trigger phases and the real hit position. This data can then be taken into account during light shooting. As a result, the hold-up time and the fall of the projectile can be calculated by the algorithm on the basis of measured and predetermined data. <b> List of reference symbols: </b> Reference number description 100 Firearm 101 Deduction 102 Light detector 103 Target 104 Projected point of light 105 Rifle monitor

Claims (14)

1. A device for determining the accuracy of a shooter, the device comprising:

   a firearm (100) having a radiation source and a trigger (101), wherein the trigger (101) has at least two positions and is connected to the radiation source; and wherein the radiation source emits a modulated light beam containing information about a position of the trigger (101);

   at least one detector (102) for detecting the modulated light beam;

   an evaluation unit (105) which evaluates the detected and modulated light beam and generates an evaluation signal from a detected position (104) of the projection of the modulated light beam on a target (103) and the information about the position of the trigger (101), which evaluation signal contains information about the marksmanship of the shooter,

   wherein a first position of the trigger (101) corresponds to a neutral position of the trigger (101)

   characterised in that

   a further position of the trigger (101) corresponds to a position after a shot has been fired.
2. The device according to claim 1, wherein a second position of the trigger (101) corresponds to a position in which a pressure point of the trigger (101) is reached.
3. The device according to one of the preceding claims, wherein a third position of the trigger (101) corresponds to a position in which a shot is released.
4. The device according to one of the preceding claims, the light beam being aligned, preferably a parallel light beam.
5. The device according to one of the preceding claims, the source of radiation being a laser.
6. The device according to one of the preceding claims, whereby the modulation of the light beam is effected by changing the pulse duration of the light beam and/or by changing the wavelength of the emitted radiation.
7. The device according to one of the preceding claims, further comprising a target (103) which is arranged in such a way that the shooter sends the light beam onto the target (103) for determining the accuracy.
8. An apparatus according to any of the foregoing claims, wherein at least one detector includes a target (103).
9. The device according to one of the claims 7 or 8, wherein the evaluation unit determines the position of the light beam (104) relative to an ideal hit position on the target (103).
10. The device according to one of claims 7 to 9, wherein the firearm (100) is suitable for firing a projectile.
11. The device according to claim 10, wherein the target (103) electronically determines the position of the bullet passing through a target surface.
12. The device according to any one of claims 7 to 11, wherein at least one detector (102) comprises a first camera (102).
13. The device according to one of the preceding claims, further comprising a display (105) for displaying the evaluation signal.
14. A method for determining the accuracy of a shooter by means of a firearm (100) having a radiation source and a trigger (101), the trigger (101) having at least two positions and being connected to the radiation source, the method comprising the following steps:

    emitting, with the radiation source, a modulated light beam containing information about a position of the trigger;

    detecting the modulated light beam;

    evaluating the detected and modulated light beam;

    generating, from a detected position of the projection of the modulated light beam on a target and the information about the position of the trigger, an evaluation signal containing information about the marksman's accuracy; and

    where a first position of the trigger corresponds to a neutral position of the trigger

    characterised in that

    another position corresponds to the deduction of a position after a shot has been fired.

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