A laser anti-drone weapon simulation terminal

Abstract

The application discloses a laser anti-UAV weapon simulation terminal, which comprises a transmitting end and a receiving end; the transmitting end comprises a laser transmitter, a laser driving circuit, a first communication assembly, a first control unit, an LED indicator lamp and a power supply system; the power supply system is used for power supply; the laser transmitter is fixed with an installed laser weapon; the LED indicator lamp indicates laser emission; the first communication assembly sends transmitting data to a background system; the first control unit is connected with a main control of the installed weapon and sends the transmitting data to the background system through the first communication assembly; the receiving end comprises a laser receiving probe, a second communication assembly, a second control unit and a power supply; the power supply is used for power supply; the laser receiving probe receives laser emitted by the laser transmitter; the second control unit sends data packets of laser signals received by the laser receiving probe to the background system through the second communication assembly. The laser anti-UAV weapon can simulate the attack effect on UAVs.

Description

Technical Field

[0001] This invention belongs to the field of military simulation training technology, and specifically relates to a laser anti-drone weapon simulation terminal. Background Technology

[0002] With the rapid development of drone technology, drones are increasingly being used in military, civilian, and scientific research fields. However, in addition to accelerating investment in drone research and procurement, countries around the world are also actively seeking methods to counter enemy drones. Laser attacks, as a type of directed-energy weapon, offer advantages over traditional, expensive attack methods such as missiles and machine guns, including higher speed, higher accuracy, rapid fire transfer, and lower cost. As related research matures, laser weapons will inevitably play an increasingly important role in the counter-drone field.

[0003] To ensure the security of our airspace, the development of counter-drone systems has become particularly important. However, the lack of realistic environmental simulation methods for testing, evaluating, and training operators of counter-drone systems limits their performance improvement. Traditional laser counter-drone equipment is often expensive and complex to operate, and the high-energy lasers it emits require a large amount of power, making it difficult to achieve highly controllable, safe, and convenient counter-drone training results. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems. This invention provides a laser anti-drone weapon simulation terminal, which can simulate the attack effect of laser anti-drone weapons on drones by emitting a safe and low-energy laser beam, providing a highly controllable simulation means for simulation testing and training of anti-drone systems.

[0005] The technical solution to achieve the purpose of this invention is as follows:

[0006] A laser anti-drone weapon simulation terminal, characterized in that it includes a transmitter set on an actual laser weapon and a receiver set on a drone;

[0007] The transmitting end includes a laser emitter, a laser driving circuit, a first communication component, a first control unit, LED indicators, and a power supply system;

[0008] The power supply system is used to supply power to the first control unit, the laser driving circuit, and the first communication component;

[0009] The laser emitter is coaxially fixed with the actual laser weapon and is adapted to the actual optoelectronic aiming system;

[0010] The LED indicator is used to indicate the completion of one laser emission;

[0011] The first communication component is used to send the transmission data to the backend system;

[0012] The first control unit is connected to the main control unit of the actual weapon, sends and reads control signals to the main control unit, controls the switching on and off of the laser of the actual weapon by sending laser shut-off and laser turn-on messages, parses the firing direction, firing angle, and laser power of this actual weapon launch according to the data protocol of the main control unit, and encodes them into the laser data stream to be emitted; by parsing the laser power value of this launch, the control unit changes the magnitude of the laser emitter drive power and adjusts the range of the laser emitter; by parsing the laser data stream of this firing, the control unit turns the laser emitter on or off, and sends the launch data to the backend system through the first communication component.

[0013] The receiving end includes a laser receiving probe, a second communication component, a second control unit, and a power supply.

[0014] The power supply is used to power the laser receiving probe, the second communication component, and the second control unit;

[0015] The laser receiving probe is set around the UAV body to receive the laser emitted by the laser transmitter;

[0016] The second control unit is used to decode the laser signal received by the laser receiving probe, distinguish the killing mode, and send the data packet containing damage information, including GPS information, to the background system through the second communication component.

[0017] The significant advantages of this invention compared to existing technologies are:

[0018] (1) Traditional laser anti-drone equipment is often expensive and complex. This terminal has a relatively simple structure, is highly maintainable, emits conventional lasers that are harmless to test personnel, has low energy consumption (the laser emitter power is less than 5W), and simulates attacks on drones without causing actual damage. The drones can be reused. Therefore, this terminal can greatly reduce training costs and provide a more economical option for the research and development and verification of anti-drone systems.

[0019] (2) The terminal is mounted on the actual weapon. Except for not emitting high-energy lasers, all other operations are supported by the actual equipment, which simulates a completely real combat environment for the trainees and creates conditions for the testing, performance evaluation and operation training of the anti-drone system.

[0020] (3) The connection between the communication module and the base station enables the transmission of information such as the main control data stream of combat equipment, terminal events, and damage data to the background. Combat data can be directly used for guidance and control, adjudication and evaluation, forming a complete closed loop of training data. Attached Figure Description

[0021] Figure 1 This is an overall application block diagram of the present invention;

[0022] Figure 2 This is a block diagram of the transmitter principle of the simulated terminal of the present invention;

[0023] Figure 3 This is a block diagram illustrating the principle of the analog terminal receiver of the present invention.

[0024] Figure 4 This relates the probability of damage to optical devices to energy density. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0027] This embodiment of a laser anti-drone weapon simulation terminal includes a transmitter mounted on an actual laser weapon and a receiver mounted on a drone. The transmitter includes a laser transmitter, a laser drive circuit, a first communication component, a first control unit, an LED indicator, and a power system. The receiver includes a laser receiving probe, a second communication component, a second control unit, and a battery.

[0028] Combination Figures 1-3 The transmitter utilizes a high-performance embedded main control board, NVIDIA Jetson Xavier, which serves as the core control unit (first control unit) of the transmitter. The vehicle power supply or battery is connected to the power system, and the power module within the system converts the input 4.2V-36V voltage to 3.3V and 5V to power the main control board, communication module, and laser drive circuit. The main control board connects to the main control unit of the actual weapon via a reserved CAN bus interface, sending and reading control signals through this interface. The main control board controls the switching of the laser in the actual weapon by sending laser shutdown and laser activation messages; the message structure is shown in Table 1. By reading data from the bus, the system parses parameters such as the firing direction, firing angle, and laser power of this actual weapon launch according to the data protocol of the actual weapon's main control unit. Through encoding, the effective parameters are encoded into a laser data stream to be emitted according to the laser communication interface protocol. An 8-bit binary number is modulated using a 6-11MPPM encoding modulation method with a modulation frequency of 48KHz. The data frame format is shown in Table 2, and the laser encoded data content is shown in Table 3.

[0029] Table 1 Message Structure

[0030]

[0031] Table 2 Data Frame Format Table

[0032]

[0033]

[0034] Table 3 Laser Coding Data Content

[0035] Serial Number Fields illustrate 1-2 Angle1 Shot towards 3 Angle2 angle of fire 4-5 Power laser power 6 type Type of attack 7-18 Position latitude and longitude coordinates ...

[0036] The SPI pin of the main control board is connected to a digital potentiometer in the laser driver circuit. By analyzing the laser power value of this transmission, the resistance of the digital potentiometer is adjusted to change the driving power of the laser transmitter and thus adjust the range of the laser transmitter. The GPIO pin of the main control board is connected to the power drive pin of the laser transmitter. The main control board analyzes the laser data stream of this firing and controls the high and low levels of the output of this GPIO pin to turn the laser transmitter on or off, realizing the transmission of laser encoded data. The power of a single laser transmission does not exceed 5W. The terminal laser transmitter and the actual high-power transmitter are coaxially fixed by magnetic suction / plastic chucks to ensure compatibility with the actual photoelectric aiming system. The GPIO pin of the main control board is connected to the LED indicator driver pin. After the laser encoded data is transmitted, this pin outputs a pulse signal with a width of about 1 second to light up the LED indicator once, indicating that the laser data transmission is complete. Quectel BG96 is used as a 4G LTE communication module (first communication component), which is connected to the main control board via a UART serial port for connection to dedicated or public 4G networks. When the weapon is launched, the main control board can control the laser emitter via GPIO. At the same time, the communication module will start and send data to the 4G communication module via serial communication. The 4G module will then send the launch data to the background system.

[0037] The receiver uses a Cortex-M3 architecture GD32F103C8T6 chip as the main control chip (second control unit). A lightweight laser receiver probe is selected and fixed to the drone body via magnetic attraction / mounting. A small elastic cable winder (similar to a measuring tape) is attached to the probe housing. The connecting cable of the laser receiver probe can be extended by pulling and rotating the winder shaft, thereby increasing the distance between the probe and the main control board housing, forming a "net"-like connection with the main control board. After the probe is fixed to the drone body, the elasticity of the connecting cable holds the lightweight housing of the main control board at the bottom of the drone body. The probe and the receiver main control communicate via a CAN bus. A 4.2V, 3000mAh 18650 battery is used as the power supply. After being stepped down by the power system, it provides 3.3V to power the main control and laser receiver probe, and after being stepped up, it provides 5V to power the Quectel BG96 communication module (second communication component). After receiving a laser beam, the photodiode of the laser receiver probe converts the optical signal into an analog signal. This signal is then amplified by an amplifier circuit and output to the decoding chip pin built into the laser receiver probe for decoding and calculation. The probe type determines whether the kill signal is soft or hard.

[0038] Laser weapons can cause damage to drones in two ways: hard kill and soft kill. Hard kill refers to the substantial damage inflicted on the target by high-energy lasers. This includes directly destroying the drone itself or destroying specific parts of the target. Soft kill requires lower laser power, typically between a few watts (W) and tens of watts (W), and focuses more on damaging the target's optoelectronic equipment. Laser beam irradiation can damage photodiodes or pixels in sensors, thus affecting the normal operation of the sensors, without directly destroying the physical structure of the drone.

[0039] Through the experimental process and numerical results of KYLE RPKAFKA et al.'s study on the damage threshold of optical components under periodic-scale laser pulse shock, it was found that the damage to optical devices follows a gradual curve with increasing energy density, such as... Figure 4 As shown.

[0040] The above experimental results show that the energy density limit of soft kill of optoelectronic devices on UAVs is far less than the tens of kilowatts (kW) required to burn the airframe. Therefore, by different laser codes, soft / hard kill results can be achieved, demonstrating multiple kill modes.

[0041] After the laser signal is successfully received and decoded, the decoding chip transmits the decoding result to the receiving end master controller (second control unit) via the CAN bus. After receiving the data from the CAN bus, the receiving end master controller parses the data and reassembles it according to the communication data protocol. The data is then forwarded to the Quectel BG96 communication module via the UART serial port. The communication module sends the data packet containing damage information, including GPS information, to the background for participation in background calculations.

[0042] All content not described in detail in this invention is prior art. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser-based anti-drone weapon simulation terminal, characterized in that, This includes the transmitter mounted on an actual laser weapon and the receiver mounted on a drone; The transmitting end includes a laser emitter, a laser driving circuit, a first communication component, a first control unit, LED indicators, and a power supply system; The power supply system is used to supply power to the first control unit, the laser driving circuit, and the first communication component; The laser emitter is coaxially fixed with the actual laser weapon and is adapted to the actual optoelectronic aiming system; The LED indicator is used to indicate the completion of one laser emission; The first communication component is used to send the transmission data to the backend system; The first control unit is connected to the main control unit of the actual weapon, sends and reads control signals to the main control unit, controls the switching on and off of the laser of the actual weapon by sending laser shut-off and laser turn-on messages, parses the firing direction, firing angle, and laser power of this actual weapon launch according to the data protocol of the main control unit, and encodes them into the laser data stream to be emitted; by parsing the laser power value of this launch, the control unit changes the magnitude of the laser emitter drive power and adjusts the range of the laser emitter; by parsing the laser data stream of this firing, the control unit turns the laser emitter on or off, and sends the launch data to the backend system through the first communication component. The receiving end includes a laser receiving probe, a second communication component, a second control unit, and a power supply. The power supply is used to power the laser receiving probe, the second communication component, and the second control unit; The laser receiving probe is installed around the drone body to receive the laser emitted by the laser transmitter; The second control unit is used to decode the laser signal received by the laser receiving probe, distinguish the killing mode, and send the data packet containing damage information, including GPS information, to the background system through the second communication component.

2. The laser anti-drone weapon simulation terminal according to claim 1, characterized in that, The first control unit uses an embedded main control board. The SPI pin of the main control board is connected to a digital potentiometer in the laser drive circuit. By analyzing the laser power value of this emission, the resistance of the digital potentiometer is adjusted to change the driving power of the laser emitter. The GPIO pin of the main control board is connected to the power drive pin of the laser emitter. The main control board analyzes the laser data stream of this emission and controls the high and low levels of the output of the GPIO pin to turn the laser emitter on or off. The GPIO pin of the main control board is connected to the LED indicator drive pin. After the laser encoded data is sent, the GPIO pin outputs a pulse signal with a width of about 1 second to light up the LED indicator once.

3. The laser anti-drone weapon simulation terminal according to claim 1, characterized in that, The first communication component uses a 4G LTE communication module to connect to a dedicated or public 4G network.

4. The laser anti-drone weapon simulation terminal according to claim 1, characterized in that, A winding device is connected to the outer shell of the laser receiving probe. The connecting wire of the laser receiving probe can be extended by pulling and rotating the winding device shaft. The rebound force of the connecting wire will hold the second control unit shell under the drone body.

5. The laser anti-drone weapon simulation terminal according to claim 1, characterized in that, The laser receiving probe and the second control unit communicate via a data line through a CAN bus.

6. The laser anti-drone weapon simulation terminal according to claim 1, characterized in that, The power supply is a 4.2V, 3000mAh 18650 battery.

7. The laser anti-drone weapon simulation terminal according to claim 1, characterized in that, After the photodiode of the laser receiving probe receives the laser, it converts the optical signal into an analog signal, which is then amplified by the amplifier circuit and output to the decoding chip pin built into the laser receiving probe for decoding calculation.

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