CN110631414A - An analog electromagnetic gun control device for accurate guidance of artillery shells - Google Patents

Abstract

The simulation electromagnetic gun control device for accurate guidance of the projectile of the present invention includes a power supply module, a booster module, a voltage limiting charging module, a coil gun bore, a control switch, a two-degree-of-freedom pan-tilt, a laser ranging module, and a projectile guidance control module. The power module provides 12V DC power; the boost module converts the 12V DC power into 15-390V adjustable high-voltage DC after inversion, transformation and rectification; the voltage-limiting charging module converts a voltage regulator The tube and a resistor are connected in series, and a large capacitor is connected in parallel to prevent the capacitor from being overcharged; the coil barrel is a wound multi-turn coil barrel; the control switch is a DC relay with high withstand voltage and high current; the two degrees of freedom cloud The laser ranging module is used to measure the obstacles ahead; the two-degree-of-freedom pan/tilt head controls the horizontal movement of the gun barrel and the movement of the pitch and tilt angles; the electromagnetic gun device controls the operation of the microprocessor. Cannonball guidance control strategy, precisely control the gimbal to make it bombard the target position.

Description

An analog electromagnetic gun control device for precise guidance of artillery shells

technical field

The invention relates to the field of electromagnetic launch practice and simulation equipment, and more particularly, to a simulation electromagnetic gun control device for accurate guidance of artillery shells.

Background technique

An electromagnetic gun is an advanced high-energy weapon that uses an electromagnetic field to convert electrical energy into kinetic energy of shells. Compared with traditional artillery and rocket launching, electromagnetic artillery has the significant advantages of smaller launching noise, better concealment, and higher ejection velocity. It is a research hotspot in the military field in recent years.

The existing electromagnetic gun model has the following shortcomings: 1. The voltage of the existing electromagnetic gun is fixed and cannot be adjusted, and the voltage when the capacitor is charged cannot be controlled, so that the speed and range of the shell cannot be adjusted; 2. . Due to the first point, the existing electromagnetic guns cannot accurately shoot a certain position, that is, it is impossible to accurately shell the target position by inputting the shooting.

Aiming at the above problems, an analog electromagnetic gun control device for accurate guidance of artillery shells is provided, which can automatically scan the shelling position according to the laser ranging module, and adjust the voltage of the capacitor charging according to the needs, so as to control the speed of the shells. Modeling the movement process, accurately calculating the range, and finally making the shooting more accurate. At present, there is no related electromagnetic gun patent with similar technology.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, and to provide a simulated electromagnetic gun device with a simple and reasonable structure, which can automatically scan targets and accurately shoot projectiles.

The technical solution of the present invention is that an analog electromagnetic gun control device for accurate guidance of artillery shells is realized by the following technical solutions. The experimental device includes a power module, a boost module, a voltage limiting charging module, a coil gun bore, a control switch, Two-degree-of-freedom PTZ, laser ranging module, shell guidance control module. The power module provides 12V DC power; the boost module converts the 12V DC power into 15-390V adjustable high-voltage DC after inversion, voltage transformation, and rectification; the voltage-limiting charging module converts a stable The pressure tube and a resistor are connected in series, and a large capacitor is connected in parallel to prevent the capacitor from being overcharged; the coil barrel is a wound multi-turn coil barrel; the control switch is a high-voltage and high-current DC relay; the two The degree of freedom gimbal can control the horizontal and pitching of the gun barrel; the laser ranging module can measure the distance of the obstacle in front, which is convenient for calculating the ballistic process and the gun barrel inclination.

Two-degree-of-freedom gimbal (composed of two LD-1501MG digital servos), which can control the horizontal and pitching of the gun barrel;

The control microprocessor of the electromagnetic gun device runs a projectile guidance control strategy, which can precisely control the pan/tilt and make it bombard the target position.

Both ends of the discharge capacitor in the electromagnetic gun device are connected in parallel with resistors, and are connected to the ADC port of the microcontroller through the resistor divider.

The laser ranging module is installed on the horizontal pan-tilt together with the electromagnetic gun, so that after scanning the target target, electromagnetic artillery shells are generated.

The artillery shell guidance control strategy is to scan the surroundings of its own electromagnetic gun, find the shooting target position, and control the charging and discharging voltage of the capacitor and the horizontal and pitching inclination angle of the pan-tilt movement through calculation, and a control method by deflecting a certain angle. .

The two ends of the discharge capacitor in the electromagnetic gun device are connected in parallel with a sampling resistor, and the ADC port of the microcontroller is connected to the ADC port of the microcontroller through the voltage division of the sampling resistor, so as to accurately measure the capacitor voltage, thereby ensuring that the initial velocity of the shell remains constant.

To sum up, when the electromagnetic gun starts to work, the electromagnetic gun rotates laterally through the two-degree-of-freedom pan/tilt, and scans the shelling position through the laser ranging module. When the shelling position is searched, the shell guidance control strategy will accurately calculate the shelling elevation angle according to the target position. , and then the DC power is boosted by the boost module to quickly charge the capacitor. The voltage-limiting charging module prevents the capacitor from overshooting through the Zener diode. During the charging process, the microcontroller monitors the capacitor voltage value in real time to ensure that after the charging voltage meets the shooting requirements Stop charging and fire cannonballs.

Beneficial effects: The present invention proposes to use 15-390V adjustable high-voltage direct current; the voltage-limiting charging module is to connect a voltage regulator tube and a resistor in series, and connect a large capacitor in parallel to serve as the energy source for launching artillery shells. The multi-turn coil gun barrel is wound, and the capacitor instantaneously discharges a large current to provide electromagnetic force to the metal shell of the steel shell; the horizontal and pitch angle movement of the gun barrel is controlled by the PTZ with two degrees of freedom; the laser ranging module, The distance of obstacles in front can be measured, which is convenient for calculating the ballistic process and the inclination of the gun barrel. Through modeling the movement process of the projectile, the firing range can be accurately calculated, so that the shooting is more accurate finally. To achieve the ideal control of the electromagnetic gun. The electromagnetic gun (experimental device) of the invention can accurately shoot the shell to the target position, and has the advantages of high control precision, long range and good stability.

Description of drawings

1 is a schematic diagram of a simulated electromagnetic gun control device of the present invention.

FIG. 2 is a schematic diagram of the control strategy of the present invention.

Detailed ways

The simulated electromagnetic gun control device for the accurate guidance of artillery shells is realized by the following technical scheme. The experimental device includes a power supply module, a booster module, a voltage-limiting charging module, a coil gun bore, a control switch, a two-degree-of-freedom pan-tilt, and a laser measuring device. Distance module, shell guidance control module. The power module provides 12V DC power; the boost module converts the 12V DC power into 15-390V adjustable high-voltage DC after inversion, voltage transformation, and rectification; the voltage-limiting charging module converts a stable The pressure tube and a resistor are connected in series, and a large capacitor is connected in parallel to prevent the capacitor from being overcharged; the coil barrel is a wound multi-turn coil barrel; the control switch is a high-voltage and high-current DC relay; the two The degree-of-freedom head can control the horizontal and inclined movement of the gun barrel; the laser ranging module can measure the distance of the obstacle in front, which is convenient for calculating the ballistic process and the inclination of the gun barrel.

The two-degree-of-freedom gimbal is different from the current ordinary electromagnetic gun that cannot move and shoot, and can move in two directions.

A laser ranging module is installed behind the muzzle of the electromagnetic gun.

The muzzle of the electromagnetic gun is mounted on a two-degree-of-freedom head.

The control microprocessor of the electromagnetic gun device runs a projectile guidance control strategy, which can precisely control the pan/tilt and make it bombard the target position.

Both ends of the discharge capacitor in the electromagnetic gun device are connected in parallel with resistors, and are connected to the ADC port of the microcontroller through the resistor divider.

The control strategy method of the electromagnetic gun device is as follows: as shown in Figure 2.

The Cartesian coordinate system is established with the muzzle as the O point, and the projectile motion model is established

The equation of the oblique throw motion trajectory is as follows:

It is known that the ordinate of the projectile landing is -H, then

in:

H is the height of the muzzle from the ground;

v ₀ is the barrel speed of the gun;

x is the distance to the target position;

g is the acceleration of gravity;

θ is the angle between the barrel and the horizontal.

This electromagnetic gun controls the gun ejection speed v ₀ to remain unchanged. Under the conditions of known v ₀ and H, the equation solution θ is calculated through the shooting target position x detected by the ultrasonic ranging module, which is the gun pitch angle height (horizontal height). The angle is aligned during ranging when the gimbal rotates with the first degree of freedom). By solving the above equations in real time on the microprocessor, the firing position and angle of the shell can be precisely controlled.

This electromagnetic gun uses a 400v2200uf capacitor for charging and discharging, the booster module outputs a 300V charging voltage, the shell is a steel ball with a diameter of 5mm, the capacitor charging voltage is 147v, and when the number of coil turns is 100, the gun ejection speed is 5.5 meters per second, and the maximum launch distance is 3.3 meters, the final shell firing accuracy is less than 6 centimeters.

Claims (5)

1. The device for controlling the simulated electromagnetic cannon for accurately guiding the cannonball is characterized by comprising a power supply module, a boosting module, a voltage-limiting charging module, a coil barrel, a control switch, a two-degree-of-freedom cradle head, a laser ranging module and a cannonball guiding control module. The power supply module provides a 12V direct-current power supply; the boosting module is used for converting a 12V direct-current power supply into 15-390V adjustable high-voltage direct current after inversion, transformation and rectification; the voltage-limiting charging module is characterized in that a voltage-stabilizing tube and a resistor are connected in series and connected with a large capacitor in parallel, so that the capacitor is prevented from being overcharged; the coil bore is a multi-turn coil gun barrel wound; the control switch adopts a direct current relay with high voltage resistance and large current; the two-degree-of-freedom cradle head controls the horizontal and pitching oblique inclination angle motion of the gun barrel; the laser ranging module is used for measuring a front obstacle or a target object; the two-degree-of-freedom cradle head controls the horizontal and pitching oblique dip angle motion of the gun barrel; the electromagnetic gun device controls the microprocessor to operate a shell guidance control strategy, and accurately controls the cradle head to enable the cradle head to blast a target position.

2. The device for controlling the simulated electromagnetic cannon for accurately guiding the cannon shell as claimed in claim 1, is characterized in that: two ends of a discharge capacitor in the electromagnetic gun device are connected with resistors in parallel and are connected with an ADC port of the microcontroller through resistor voltage division.

3. The device for controlling the simulated electromagnetic cannon for accurately guiding the cannon shell as claimed in claim 1, is characterized in that: the laser ranging module and the electromagnetic cannon are arranged on the horizontal cradle head together, so that the electromagnetic cannon can be generated after the target is scanned.

4. The device for controlling the simulated electromagnetic cannon for accurately guiding the cannon shell as claimed in claim 1, is characterized in that: the gun muzzle of the electromagnetic gun is arranged on a two-freedom-degree cradle head (consisting of 2 LD-1501MG digital steering engines).

5. The device for controlling the simulated electromagnetic cannon for accurately guiding the cannon shell as claimed in claim 1, is characterized in that: two ends of a discharge capacitor in the electromagnetic gun device are connected with resistors in parallel and are connected with an ADC port of the microcontroller through resistor voltage division.

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