RU2360209C1 - Shooting-range - Google Patents

Abstract

FIELD: physics; sport.

SUBSTANCE: proposed device contains a target on a panel made from acoustically homogeneous material with built-in acoustic detectors, connected through optical channels with a unit for determining hit coordinates. The unit for determining hit coordinates is connected by a radio channel to a computer device, connected to a device for displaying shooting results. The panel is made from material with high impact strength. Each optical channel has, on the transmitting side, series connected signal amplifier for amplifying signals from the acoustic detector, the input of which is the input of the channel, light-emitting diode signal conditioner and a light-emitting diode, and on the receiving side - a photodiode, connected to a signal amplifier for amplifying signals from the photodiode, the output of which is the output of the channel. The acoustic detectors, structural components of the optical channel and unit for determining hit coordinates are protected by armour plates.

EFFECT: reduced weight of the shooting-range, longer service life of the shooting-range, as well as wider arsenal of used firearms.

4 cl, 3 dwg

Description

The invention relates to target complexes, namely, systems for determining the location of hits.

Known target device (Swiss patent SN No. 648654, class F41J 5/06, publ. 1985), comprising a housing, two rubber diaphragms forming an air chamber with acoustic sensors fixed in it, and reinforcing the front and rear walls with reinforcing plates made of wood, which serve to protect the diaphragm from external influences (wind, sound), while the front wall is also the target itself.

The disadvantages of this device are the need to create an air chamber for the operation of acoustic sensors, the rapid destruction of the reinforcing walls, and with it the image of the target, as a result of which it is necessary to use a special electromechanical device (SN 648653, class F41J 1/10, publ. 1985. ) for their automatic replacement, therefore, the dimensions of the entire system as a whole increase, its complexity and reliability decreases.

It is also known target device (patent EP No. 0323941 A2, class F41J 5/04), containing a sheet of cardboard with acoustic sensors mounted on it, connected to chronometers connected to a chart for determining the coordinates of points of contact, and a display screen.

The disadvantage of this device is the inconvenient operation of the target, because frequent target changes are needed.

The closest set of essential features to this invention is a shooting range containing a target imaging device consisting of a controlled projection unit connected to a control computing device and a monolithic bulletproof screen with acoustic sensors integrated around its periphery connected to a hit coordinate determination unit, connected to the control computing device, the outputs of which are connected to the result display device comrade shooting (RF patent No. 2095732, CL F41J / 06, publ. 1997).

A disadvantage of the known shooting range is the presence of a bulletproof panel, which has a large mass, and also collapses when using weapons with high energy ammunition, thereby making it impossible to operate in this case.

The objective of the invention is the creation of a mobile shooting range of small mass with the possibility of using any type of small arms and at the same time increasing the service life.

The technical result of the present invention is to reduce the mass of the shooting gallery, increase its service life, as well as expand the arsenal of small arms used (high energy bullets) through the use of a panel (on which the target is located) made of impact-resistant material, which, unlike armor plates, residual deformations do not accumulate under the action of a long shock load, and the absorption of mechanical energy occurs during the deformation, thereby preserving the acoustic homogeneity the material

The use of a shockproof lightweight panel in combination with wireless signal transmission channels makes the shooting range more mobile and more convenient to use.

The indicated technical result is achieved in that in a shooting range containing a target on a panel of acoustically homogeneous material with acoustic sensors integrated therein, connected to a hit coordinate determination unit connected to a computing device connected to the firing result display device, communication between the acoustic sensors and the unit for determining the coordinates of hits is carried out by means of optical channels, the connection between the unit for determining the coordinates of hits and computing stroystvom performed by radio, and the panel is made of shock-material.

Each optical channel contains, on the transmitting side, a signal amplifier from an acoustic sensor connected in series, the input of which is a channel input, an LED driver and an LED, and on the receiving side, a photodiode connected to a signal amplifier from a photodiode, whose output is the channel output.

The radio channel contains the first and second transceivers and a radio line.

Acoustic sensors, structural elements of the optical channel and the unit for determining the coordinates of hits are protected by armor plates.

Shooting range is illustrated by the drawings shown in figures 1-3.

Figure 1 presents a General view of the shooting range (front and side view);

figure 2 is a General view of a shooting range (rear view);

figure 3 is a functional diagram of the device.

Shooting range (figure 1, 2, 3) contains the target 1 on the impact-resistant panel 2 with built-in acoustic sensors 3, which are piezoelectric elements, block 4 determine the coordinates of hits, computing device 5, and also a device 6 for displaying the results of shooting. Acoustic sensors 3 are connected to the unit 4 for determining the coordinates of hits through optical channels, each of which contains on the transmitting side a series-connected amplifier 7 of the signal from the acoustic sensor, driver 8 of the LED signals and LED 9, and on the receiving side a photodiode 10 connected to the amplifier 11 signals from the photodiode 10. Block 4 determine the coordinates of hits connected to the computing device 5 through a radio channel 12 containing a first transceiver 13 and a second transceiver 14. Each The fourth of four acoustic sensors 3 with a corresponding signal amplifier 7, a shaper 8 of the LED signals and an LED 9 is structurally placed in one of four blocks 15, each of which is protected by its armor plate 16. And four photodiodes 10 with the corresponding signal amplifiers 11, block 4 coordinates hits and the first transceiver 13 are structurally placed in a single unit 17, protected by an armor plate 18. The second transceiver 14 of the radio channel 12 is structurally located in the computing device 5. Block 4 Lenia results coordinates comprises an internal oscillator 19 calibrated frequency, two switches 20, two pulse counter 21, a microcontroller 22 and operates on its own power supply (battery).

Shooting range works as follows.

The impact-resistant rubber panel ~ 600 × 800 mm in size, ~ 20 mm thick and ~ 5 kg in weight uses a stapler to attach the required paper target or to apply the image of the target with a special stencil paint. All images of targets with data on their shape, size and location of the affected areas are available in the computing device.

When a bullet hits a target, it breaks up a viscous material, taking its small particles out, then the resulting hole is pulled together due to the elastic properties of the material, thus restoring its acoustic uniformity.

When firing a shot into the panel area from the point of impact on a circular front, a deformation wave propagates in the panel material, under the influence of which piezoelectric sensors generate an electrical signal.

In the general case, the deformation wavefront reaches the piezoelectric sensors at different times, and three piezoelectric sensors are sufficient to determine the coordinates of the point of impact. In this scheme, four sensors are used to improve accuracy, located at the corners of the panel symmetrically relative to its center.

The electrical signals generated by the piezoelectric sensors 3 (Fig. 3) are amplified by amplifiers 7 and fed to signal shapers for the LEDs 8. The LEDs 9 transmit a light pulse that is received by the photodiodes 10. The signal from the photodiode is amplified by the amplifiers 11 to the required response level of the switches 20. Two The control inputs of the switch receive amplified signals from photodiodes corresponding to piezoelectric sensors located diagonally on the panel.

The first time signal from the pair opens the switch 20 to the frequency pass from the internal generator 19, the second signal closes the switch. In the time intervals between the responses of the pair of sensors, the pulses of the reference frequency of the generator pass through the switches and are counted by counters 21 for each diagonal. A pair of these numbers comes from the counters to the microcontroller 22 and through the radio channel from the unit 4 for determining the coordinates of hits in the computing device 5. Since the numbers are equivalent to the absolute coordinates of the point of contact, the known location of the sensors, the frequency of the generator and the speed of sound propagation in the panel material in the computing the device finally calculates the absolute coordinates.

The firing results are entered into the database for storage and displayed for visual display on the firing result display device 6 (monitor), which is in the field of view of the shooter.

As a radio channel, standard, ubiquitous protocols such as Bluetooth, Wi-Fi or ZigBee can be used.

As impact-resistant material, you can use vacuum rubber and polyurethane (SKU PFL-100, SKU PFL-65, SKU FE-4, etc.).

It was experimentally established that a panel made of such material can withstand up to 200,000 shots from weapons with high-energy ammunition (machine guns, rifles), and a metal plate up to 30,000 shots.

Claims (4)

1. A shooting range containing a target on a panel of acoustically homogeneous material with built-in acoustic sensors connected to a hit coordinate determination unit connected to a computing device connected to the firing result display device, characterized in that the acoustic sensors are connected to the coordinate determination unit hits through optical channels, and the unit for determining the coordinates of hits is connected to the computing device via a radio channel, while the panel is made material made of the shock. 2. Dash according to claim 1, characterized in that each optical channel contains on the transmitting side a signal amplifier from an acoustic sensor connected in series, the input of which is a channel input, an LED signal conditioner and an LED, and on the receiving side a photodiode connected to a signal amplifier from a photodiode whose output is the output of the channel. 3. Shooting range according to claim 1, characterized in that the radio channel comprises a first and second transceiver and a radio line. 4. The shooting range according to claim 1, characterized in that the acoustic sensors, signal amplifiers from the acoustic sensors, LED signal conditioners, LEDs, photodiodes, signal amplifiers from the optical channel photodiodes and the hit coordinate determination unit are protected by armor plates.

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