RU2230279C1 - Stabilization and guidance system - Google Patents

Abstract

FIELD: automatic-control systems, stabilization and guidance systems of artillery armament installed on movable carriers, for example, armament unit of an infantry combat vehicle. SUBSTANCE: the essence of the design consists in the fact that the stabilization and guidance system containing series-connected control panel, sight and an actuating drive, whose output is connected to the second input of the sight, uses series-connected carrier velocity transducer, amplifier-modulator, synchro resolver of the control object turning angle sensor, demodulator, controlled divider and a switch, the switch output is connected to the third input of the sight. EFFECT: detected target at a flank maneuver of the tank or infantry combat vehicle. 3 dwg

Description

The present invention relates to automatic control systems, and in particular, to stabilization and guidance systems of artillery weapons mounted on movable carriers, for example, a weapon block of an infantry fighting vehicle (BMP).

Known stabilization and guidance systems used to control the armament of tanks, for example, used in the fire control system 1A42 [1], in which, if it is necessary to conduct flank firing from the course [2] at a moving target, the gunner determines the distance to the target, determines the amount of lead, considering the magnitude of the mutual change in the direction of movement of the target and the tank, and then manually, holding the reticle with the offset from the target by the value of the selected lead, fires a shot. At the same time, the preparation time of the shot is significantly increased, which reduces the effectiveness of shooting when maneuvering the tank, especially when moving "along the snake".

A stabilization and guidance system is also known, in which the method of providing targeted fire from the course during flank movements of the tank [3], selected as a prototype, which contains (Fig. 1) a control panel 5, a sight 4, an adder 6, and an actuator 7 .

A ballistic computer 3 is introduced into the system, electrically connected to a roll sensor 2 and a range finder 1, as well as a calculating device 10, the first input of which is connected to a ballistic computer 3, and the signal at this input is proportional to the range to target D. The second input is a computer device 10 is connected to an angle sensor 8, the signal of which is proportional to the sine of the course angle β of the tank. The third input of the calculating device 10 is connected to the path sensor 9, the signal of which is proportional to the tank traveled by the path L. A switch 11 is connected to the control input of the calculating device 10, and the output of the computer is connected to the third input of the sight 4.

The system operates as follows. The correction input mode is carried out (in the form of an additional target tracking speed) periodically at the command of the switch 11 with the set tact time. At each step, the current range to the target D is read, as well as the value sinβ and stored in a counting-decisive device 10. The signal of the path sensor 9 measures the increment of the path L traveled by the tank during each cycle and is stored at the end of the cycle -decisive device 10. The computer 10 decides the dynamic correction in accordance with the mathematical dependence:

where Δβ is the dynamic correction;

β - heading angle;

L is the distance traveled;

D - range to the target.

Dynamic correction is introduced into sight 4, shifting the gun to a predefined point relative to the aiming mark.

The disadvantage of this system is the need to measure the distance to the target, at least twice before the introduction of the amendment. However, the distance to the target can only be measured after aiming the mark of the sight on the target and holding it on the target for the time necessary to ensure the process of measuring range. It turns out that before the introduction of dynamic correction for the flank offset, the gunner must detect the target, aim and hold the mark of the sight on the target, and only then a range measurement is carried out and a correction for the flank offset appears.

Thus, this system does not provide the conditions for target detection and aiming mark aiming at the target when flanking a tank or infantry fighting vehicle.

The proposed technical solution is aimed at providing conditions for target detection during the flank maneuver of the carrier (tank or infantry fighting vehicle) due to the formation of an additional guidance speed signal, which ensures stabilization of the field of view of the sight at an adjustable range.

The essence of the proposed technical solution lies in the fact that in the stabilization and guidance system containing a control panel, a sight and an actuator, series-connected carrier speed sensor, amplifier-modulator, relative angle of rotation of the control object with a rotating transformer, a demodulator, a controlled divider and a switch, while the control panel is connected to the first input of the sight, the second and third inputs of which are respectively connected to the output of the actuator and the output switch house and out of sight it is connected to the actuating drive.

The application materials are illustrated by drawings, where Fig. 1 shows a block diagram of a stabilization and guidance system adopted as a prototype; figure 2 presents a block diagram of the proposed stabilization and guidance system; figure 3 presents a diagram of the compensation of the influence of the flank maneuver on the field of view of the sight.

Information confirming the possibility of implementing the proposed technical solution to obtain the above technical result is as follows.

The proposed stabilization and guidance system (figure 2) consists of a series-connected control panel 1, sight 2 and an actuator 3, the output of which is connected to the second input of the sight 2. In addition, the system contains series-connected media speed sensor 4, an amplifier-modulator 5 , a rotating transformer of the sensor 6 of the relative angle of rotation of the control object, a demodulator 7, a controlled divider 8 and the switch 9, and the output of the switch 9 is connected to the third input of the sight 2.

The proposed system works as follows.

In the signal generation mode of the additional guidance speed signal, the stator winding of the rotary transformer of the relative angle of rotation of the control object 6 is powered by the voltage signal of the motion velocity signal modulated and amplified in the amplifier-modulator 5 coming from the medium speed sensor 4. At the output of the sinus winding of the rotor of the rotary transformer of sensor 6, we get a signal proportional to the product of the speed V and the sine of the angle of rotation of the tower relative to the body of the carrier - sinβ. These signals pass through a demodulator 7 to a controlled divider 8. As a controlled divider 8, which determines the range of stabilization of the field of view of the sight when maneuvering the carrier, a variable resistor mounted on the control panel housing is used. The position of the fully withdrawn resistor corresponds to the zero value of the additional guidance speed Δω _n corresponding to the maximum observation range at which the angle of oscillation of the sight field of sight when maneuvering is close to zero. With the introduction of a variable resistor of the controlled divider 8, the range of stabilized observation decreases and during the maneuver, the field of view of the sight stabilizes at a certain distance corresponding to the exposed position of the variable resistor of the controlled divider 8. Moreover, this range of stabilization of the field of view of the sight does not depend on the parameters of the maneuver of the carrier. The device operates in the entire range of angles of position of the tower relative to the housing of the carrier, i.e. in the range of angles 360 °, as well as at any sign of speed.

Thus, the compensation of the influence of the flanking maneuver on the field of view of the sight is provided by introducing into the signal the aiming speed ω _{n of the} correction Δω _n calculated by the formula:

where Δω _n - correction for the aiming speed, providing stabilization of the field of view of the sight during the flank movement of the carrier;

V _T - the speed of the carrier;

β - heading angle, the angle between the direction of movement of the carrier and the direction of the gun and turret in the horizontal plane;

K _d - coefficient proportional to the distance to the target (set by a controlled divider 8).

A diagram explaining the operation of the device for compensating for the influence of the flank maneuver on the sight field of view of the sight is presented in FIG. 3. In the diagram, the carrier (BMP) moves along the "snake" AA. In this case, the center of the field of view of the stabilized sight moves between the lines AB and А′В ′. The angular displacements of landmarks in the field of view during maneuver will depend on the range of their location from the moving infantry fighting vehicle. When the switch 9 switches on the compensation device and sets the adjusting resistor of the controlled divider 8 to the position corresponding to the range D ₁ , the position of the landmarks located on the line С-С ′ will be fixed, and in the space between the BMP and the line С-С ′ the fluctuations of the landmarks will be reduced , and the magnitudes of these oscillations are in the triangle AOA ′. At a range of D _{1, the} fluctuations of the landmarks will be close to zero, and at ranges greater than D ₁ , the fluctuations of the landmarks will increase again, and their shift in the field of view of the sight will be opposite compared to the position that took place before the compensation device was turned on.

The proposed solution was verified by electronic modeling, as well as experimental verification in a prototype of a modernized weapons stabilizer BMP. Tests have shown that the proposed device for compensating for the influence of the flanking maneuver on the sight field of vision carries out the formation of an additional guidance speed signal Δω _n , which ensures stabilization of the sight field of sight at an adjustable range during the BMP flanking maneuver, which significantly improves the working conditions of the gunner.

According to the results of an experimental check, the proposed technical solution is included in the documentation of the modernized stabilizer for the weapons block of the promising BMP.

Sources of information

1. Korneev V.V. Tank automatic systems. Tank stabilizers and actuators. - M .: ABTV, 1968, p. 17.

2. Rules of firing from tanks (PST-90). - M.: Military Publishing House, 1991, p. 26-27.

3. Patent No. 2190822 (priority dated 10.07.2000).

Claims (1)

A stabilization and guidance system comprising a control panel, a sight and an actuator, characterized in that it is equipped with series-connected media speed sensor, amplifier-modulator, relative angle of rotation of the control object with a rotating transformer, a demodulator controlled by a divider and a switch, while the remote control control is connected to the first input of the sight, the second and third inputs of which are respectively connected to the output of the actuator and the output of the switch, and the output when I ate coupled to the actuating drive.

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