Flight type target signal guarantee system based on OPenMV

Abstract

The invention discloses a flight type target signal guarantee system based on an OPenMV (Open Power Model Vector). Comprising the following contents: an MCU control unit which is used as a master control center for control instruction and data transmission processing; the OpenMV machine vision processing unit is used for receiving a control instruction of the MCU control unit; the target antenna attitude control unit is used for receiving target deviation value control information sent by the MCU control unit; the gyroscope is used for collecting attitude information of the target antenna attitude control unit and sending the information to the MCU control unit; the GNSS positioning unit is used for collecting positioning information of a target and sending the positioning information to the MCU control unit; and the laser ranging unit is used for receiving the laser ranging instruction of the MCU control unit and measuring the relative distance between the target and the target. The target antenna attitude control unit can control the OpenMV machine vision processing unit to point to the target in real time, so that it is ensured that the antenna is aligned to the target, and a radar tracking locking mode is simulated.

Description

Technical Field

[0001] The present invention relates to the technical field of a flying target signal assurance system, and more specifically, to a flying target signal assurance system based on OPenMV. Background Art

[0002] As the role of electronic warfare in modern warfare becomes increasingly important, building realistic target simulation systems and near-real electromagnetic radiation environments to provide comprehensive performance testing and effect evaluation for test weapon systems and teaching applications has become the primary goal of electronic range construction in various countries. The needs of modern electronic information warfare and the changes in the threat environment of electronic warfare operations have made combat targets more complex from equipment and technology to threat scenarios, and the density of complex electromagnetic environments has also increased, which has promoted the continuous development of electronic warfare equipment and combat theories.

[0003] At present, the target signals used in teaching and training generally have problems such as poor signal source directivity, unstable signals, less feedback information, inability to conduct quantitative analysis, and being affected by the environment. Whether it is a ground target signal or a flying target signal in the air, the real-time guarantee and environmental adaptability need to be improved. The reason is that the flying target is relatively fixed. On the one hand, when the platform moves, the signal source moves with it, and it is impossible to always aim at the receiving antenna of the electronic countermeasure equipment, resulting in the signal being sometimes available and sometimes not, and it is impossible to conduct quantitative evaluation; on the other hand, the angle between the target and the receiving antenna of the equipment is unknown and cannot be adjusted at will, and it is impossible to conduct multi-angle quantitative feedback on the signal radiation, which greatly reduces the training effect.

[0004] For example, patent number CN202110277169.1, an automatic target spraying control system based on openMV, including an openMV machine vision module, a power circuit module, an automatic target module, an automatic nozzle height adjustment module, and an automatic spraying module; the openMV machine vision module is based on the STM32F427CPU, integrates the OV7725 camera chip, and efficiently implements the core machine vision algorithm in C language, providing a Python programming interface; the core machine vision algorithm of the openMV module includes finding color blocks, edge detection, and mark tracking; the STM32F427 used in openMV has rich hardware resources, and introduces UART, I2C, SPI, PWM, ADC, DAC and GPIO interfaces to facilitate the expansion of peripheral functions.

[0005] And patent number CN202110443429.8, a target protection system, characterized in that it includes: a laser target, a control unit, a data link subsystem, a monitoring and display subsystem, and a power supply; the laser target is connected to the control unit for receiving a laser beam emitted by a drone; the control unit is connected to the data link subsystem for collecting a first area of ​​the laser target irradiated by the laser beam, and the duration of irradiation of the first area; the control unit sends the collected irradiated area and duration information to the monitoring and display subsystem in real time through the data link subsystem, and displays and outputs it after analysis; the power supply supplies power for the target protection system.

[0006] And patent number CN201621199736.7, a new type of anti-aircraft artillery technical inspection target system, characterized in that it includes a laser projector (1) installed on a bracket (5), a two-dimensional horizontal adjustment mechanism (2) and a high-precision two-dimensional digital level display (7); the laser projector (1) is connected to a single-chip microcomputer (1-1) through an interface circuit, the single-chip microcomputer (1-1) is connected to a two-dimensional high-precision horizontal sensor (2-1) through an interface circuit, and the single-chip microcomputer (1-1) is connected to a high-precision two-dimensional digital level display (7); a glass rod is arranged in front of the laser projector (1), the two-dimensional horizontal adjustment mechanism (2) is arranged in the plane where the laser projector (1) is located, the two-dimensional horizontal adjustment mechanism (2) is composed of two one-dimensional angle tables perpendicular to each other, and a fixing mechanism (4) is arranged at the top of the bracket (5); a projection surface (3) is arranged in front of the laser projector (1), the projection surface (3) is arranged on a projection surface bracket (8), and a pulley (9) is arranged at the bottom of the projection surface bracket (8).

[0007] And patent number CN201911060700.9, a radar equipment and countermeasure equipment synchronous training system based on a flying target, characterized in that it includes radar equipment (1), radar countermeasure equipment (2), a flying target (3) and a positioning system (4); wherein the flying target (3) includes an airframe, a power system, a control system, a remote control system, a GPS positioning system, and a reflector (31); the airframe is a carrier platform of the flying target (3) and provides hardware support for other systems; the power system provides flight power and power supply for the flying target (3); the GPS positioning system provides the real-time position coordinates of the flying target (3) for the positioning system (4); the control system includes a flight control module and a reflector control module; wherein the flight control module controls the flight attitude of the flying target (3), including stop, advance, retreat, rise, and fall; at the same time, the flight control module can control the flight trajectory and flight speed of the target, the flight trajectory includes linear motion and curved motion; the flight speed includes uniform speed and variable speed flight; the reflector control module is used to control the attitude of the reflector (31) so that the radar The electromagnetic waves emitted by the equipment (1) are reflected to the radar countermeasure equipment (2) through the reflecting plate (31), thereby ensuring the reflection path t of the electromagnetic waves. At the same time, the interference signals emitted by the radar countermeasure equipment (2) can also be reflected to the radar equipment (1) through the reflecting plate (31); the reflecting plate (31) is located at the bottom of the flying target (3) and has three degrees of rotational freedom to adjust the posture of the reflecting plate (31); the material is metal and has full reflectivity to electromagnetic waves; the radar equipment (1) and the radar countermeasure equipment (2) are respectively equipped with GPS positioning The module provides the position coordinates of the radar equipment (1) and the radar countermeasure equipment (2) to the positioning system (4). The radar equipment (1) detects the flying target (3) by emitting electromagnetic waves, and the radar countermeasure equipment (2) emits interference signals according to the electromagnetic waves found. The positioning system (4) is used to establish a basic coordinate system, calculate the posture of the reflector (31) according to the position information of the radar equipment (1), the radar countermeasure equipment (2) and the flying target (3), and adjust the posture of the reflector (31) through the control system to ensure the propagation path of the electromagnetic wave.

[0008] And patent number CN202010846541.1, 1. A towed decoy target system based on a drone, characterized in that it includes: a drone one equipped with an RCS enhancement device, the drone one flies according to the control instructions or preset track of a ground display and control device; the RCS enhancement device is used to simulate the target drone body; a drone two equipped with an electromagnetic interference device, the drone two maintains a towed formation flight with the drone one according to the control instructions or preset track of the ground display and control device; the electromagnetic interference device is used to simulate a towed decoy.

[0009] Therefore, the above-mentioned targets only solve the signal assurance problem from a certain aspect, and cannot simulate the scanning method of radar signals in various situations, nor can they quantitatively control the radiation angle of the target signal, and cannot make a comprehensive evaluation of the performance of the equipment in the training process and teaching.

[0010] Therefore, we proposed a flying target signal assurance system based on OPenMV to solve the above problems. Summary of the invention

[0011] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a flying target signal assurance system based on OPenMV to solve the problems raised in the above-mentioned background technology.

[0012] To achieve the above object, the present invention provides the following technical solution: a flying target signal assurance system based on OPenMV, comprising the following contents: MCU control unit, which serves as the overall control center for control instructions and data transmission processing; OpenMV machine vision processing unit, receiving control instructions from the MCU control unit; The target antenna attitude control unit receives the target deviation control information sent by the MCU control unit; Gyroscope, used to collect attitude information of the target antenna attitude control unit and send the information to the MCU control unit; GNSS positioning unit, used to collect the positioning information of the target and send it to the MCU control unit; A laser distance measuring unit is used to receive a laser distance measuring instruction from the MCU control unit to measure the relative distance between the target and the object; The wireless transmission control unit of the air payload end is used to transmit data between the MCU control unit and the air payload end transceiver antenna; The GNSS positioning unit is used to collect the positioning information of the ground station and send it to the MCU master control unit; The wireless transmission control unit of the ground display control end is used to transmit data between the MCU master control unit and the ground display control end transceiver antenna; Display, data storage unit and keyboard.

[0013] In a preferred embodiment, the OpenMV machine vision processing unit is connected to the MCU control unit and the target antenna attitude control unit respectively, receives control instructions from the MCU control unit, and identifies and tracks the target equipment after imaging.

[0014] In a preferred embodiment, the OpenMV machine vision processing unit sends the pixel deviation of the target in the image from the center point of the image to the MCU control unit. In addition, the attitude of the OpenMV machine vision processing unit is controlled by the target antenna attitude control unit.

[0015] In a preferred embodiment, the target antenna attitude control unit controls the angles in both horizontal and pitch directions, thereby adjusting the attitude of the OpenMV machine vision processing unit.

[0016] In a preferred embodiment, data from the airborne payload end transceiver antenna is used to convert the airborne payload end wireless transmission control unit into an electromagnetic wave signal that is radiated into space.

[0017] In a preferred embodiment, the wireless transmission control unit at the airborne payload end is used to receive the electromagnetic wave signal radiated into space by the ground station end and convert the electromagnetic wave signal into an electrical signal.

[0018] In a preferred embodiment, the data of the ground display control terminal transceiver antenna is used to convert the ground display control terminal wireless transmission control unit into an electromagnetic wave signal to be radiated into space.

[0019] In a preferred embodiment, the wireless transmission control unit of the ground display control end is used to receive the electromagnetic wave signal radiated into space by the aerial load end, and convert the electromagnetic wave signal into an electrical signal and transmit it to the wireless transmission control unit of the ground display control end.

[0020] In a preferred embodiment, the display is used to display the data information collected by the airborne payload and the ground station; The data storage unit is used to store the data sent by the MCU master control unit; The keyboard is used to manually input parameter settings and control instructions for the airborne payload end.

[0021] Technical effects and advantages of the present invention: 1. The target antenna attitude control unit of the present invention can control the OpenMV machine vision processing unit to point to the target in real time, thereby ensuring that the antenna is aligned with the target and simulating the radar tracking locking mode; 2. In addition, the target antenna attitude control unit can be controlled by the keyboard to deflect to a specific attitude to simulate different radar scanning methods; 3. The relative distance between the target and the object can be collected through the laser ranging unit, and the target can be indicated; 4. The GNSS positioning unit can collect the location information of the target and the ground display control terminal in real time; 5. The ground display control terminal establishes wireless communication with the airborne payload terminal, can control the attitude of the target, and receive downlink data such as target position, target relative distance, target attitude, target position, etc., and then combine the position information of the ground display control terminal and other signal information to quantitatively evaluate the detection performance of the equipment, and can complete equipment testing and evaluation in multiple scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the flying target signal assurance system (airborne payload end) based on OPenMV; Figure 2 It is a structural diagram of the flying target signal assurance system (ground display control terminal) based on OPenMV.

[0023] The figure numbers are: 1 MCU control unit, 2 OpenMV machine vision processing unit, 3 target antenna attitude control unit, 4 gyroscope, 5 GNSS positioning unit, 6 laser ranging unit, 7 air load end wireless transmission control unit, 8 air load end transceiver antenna, 9 ground display control end transceiver antenna, 10 MCU general control unit, 11 display, 12 data storage unit, 13 GNSS positioning unit, 14 keyboard, 15 ground display control end wireless transmission control unit. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Reference Figure 1-2 The flying target signal assurance system based on OPenMV includes an MCU control unit 1, an OpenMV machine vision processing unit 2, a target antenna attitude control unit 3, a gyroscope 4, a GNSS positioning unit 5, a laser ranging unit 6, an air load end wireless transmission control unit 7, an air load end transceiver antenna 8, an MCU master control unit 10, a display 11, a data storage unit 12, a GNSS positioning unit 13, a keyboard 14, a ground display control end wireless transmission control unit 15, and a ground display control end transceiver antenna 9; MCU control unit 1 serves as the overall control center for control instructions and data transmission processing; The OpenMV machine vision processing unit 2 is connected to the MCU control unit 1 and the target antenna attitude control unit 3 respectively, receives the control instruction of the MCU control unit 1, identifies and tracks the target equipment after imaging, and sends the pixel deviation of the target from the center point of the image to the MCU control unit 1. In addition, the attitude of the OpenMV machine vision processing unit 2 is controlled by the target antenna attitude control unit 3; The target antenna attitude control unit 3 receives the target deviation control information sent by the MCU control unit 1, controls the angles in the horizontal and pitch directions, and thus adjusts the attitude of the OpenMV machine vision processing unit 2; The gyroscope 4 is used to collect the attitude information of the target antenna attitude control unit 3 and send the information to the MCU control unit 1; The GNSS positioning unit 5 is used to collect the positioning information of the target and send it to the MCU control unit 1; The laser distance measuring unit 6 is used to receive the laser distance measuring instruction from the MCU control unit 1 to measure the relative distance between the target and the object, and can perform laser indication on the target; The wireless transmission control unit 7 at the air load end is used to transmit data between the MCU control unit 1 and the air load end transceiver antenna 8; the data of the air load end transceiver antenna 8 is used to convert the wireless transmission control unit 7 at the air load end into an electromagnetic wave signal and radiate it into space. On the other hand, the wireless transmission control unit 7 at the air load end is used to receive the electromagnetic wave signal radiated into space from the ground station end, and convert the electromagnetic wave signal into an electrical signal and transmit it to the wireless transmission control unit 7 at the air load end.

[0026] The MCU master control unit 10 serves as the master control center for ground station control instructions and data transmission processing; The display 11 is used to display the data information collected by the air payload terminal and the ground station; The data storage unit 12 is used to store data sent by the MCU master control unit 10; The GNSS positioning unit 13 is used to collect the positioning information of the ground station and send it to the MCU general control unit 10; The keyboard 14 is used to manually input parameter settings and control instructions for the airborne payload end; The ground display control terminal wireless transmission control unit 15 is used to transmit data between the MCU master control unit 10 and the ground display control terminal transceiver antenna 9; The data from the ground display control end transceiver antenna 9 is used to convert the ground display control end wireless transmission control unit 15 into an electromagnetic wave signal and radiate it into space. On the other hand, the ground display control end wireless transmission control unit 15 is used to receive the electromagnetic wave signal radiated into space by the aerial load end, and convert the electromagnetic wave signal into an electrical signal and transmit it to the ground display control end wireless transmission control unit 15.

[0027] The present invention proposes a flying target signal guarantee system based on OPenMV. First, an artificial intelligence algorithm is used to establish a target recognition feature library based on the OPenMV platform, and machine vision is used to extract the edge features, color and other feature information of the target. According to the pixel deviation of the target relative to the target on the image at this moment, a two-dimensional difference is calculated and the difference is sent to the target antenna attitude control system for processing. The rotation of the pan-tilt servo is controlled by solving the attitude deviation, so that the target signal is aligned with the target in real time, and then the attitude is calibrated according to the gyroscope, thereby simulating the real-time tracking mode of the radar. In addition, the pan-tilt servo can be rotated to a specific angle by wireless remote control of the button, so as to control the deflection direction of the target signal antenna, simulating the radar scanning mode under different conditions. Due to the existence of certain environmental disturbance factors, the PID control algorithm is used to stabilize the target pan-tilt. In addition, the laser rangefinder carried by the pan-tilt can send the distance information of the target to the ground data receiving end in real time, and the laser indication light source can assist in indicating the target, and the radiation intensity, modulation mode, frequency and other information of the target signal are combined to evaluate the monitoring and analysis ability of the equipment to the target signal during the training process.

[0028] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Based on OPenMV's flying target signal assurance system, It is characterized by: Includes the following: MCU control unit (1), the MCU control unit (1) serves as a general control center for control instructions and data transmission processing; An OpenMV machine vision processing unit (2) receives control instructions from an MCU control unit (1); A target antenna attitude control unit (3) receives target deviation control information sent by the MCU control unit (1); A gyroscope (4) is used to collect attitude information of the target antenna attitude control unit (3) and send the information to the MCU control unit (1); A GNSS positioning unit (5), used for collecting positioning information of the target and sending it to the MCU control unit (1); A laser distance measuring unit (6), used for receiving a laser distance measuring instruction from the MCU control unit (1) for measuring the relative distance between the target and the object; An airborne load-end wireless transmission control unit (7) for transmitting data between the MCU control unit (1) and the airborne load-end transceiver antenna (8); The GNSS positioning unit (13) is used to collect positioning information of the ground station and send it to the MCU master control unit (10); The ground display control end wireless transmission control unit (15) is used to transmit data between the MCU master control unit (10) and the ground display control end transceiver antenna (9); A display (11), a data storage unit (12) and a keyboard (14).

2. The OPenMV-based flying target signal assurance system according to claim 1, Features: The OpenMV machine vision processing unit (2) is connected to the MCU control unit (1) and the target antenna attitude control unit (3) respectively, receives control instructions from the MCU control unit (1), and identifies and tracks the target equipment after imaging it.

3. The OPenMV-based flying target signal assurance system according to claim 1, Features: The OpenMV machine vision processing unit (2) sends the pixel deviation of the target in the image from the center point of the image to the MCU control unit (1). In addition, the attitude of the OpenMV machine vision processing unit (2) is controlled by the target antenna attitude control unit (3).

4. The OPenMV-based flying target signal assurance system according to claim 1, Features: The target antenna attitude control unit (3) controls the angles in the horizontal and elevation directions, thereby adjusting the attitude of the OpenMV machine vision processing unit (2).

5. The OPenMV-based flying target signal assurance system according to claim 1, Features: The data of the aerial load end transceiver antenna (8) is used to convert the aerial load end wireless transmission control unit (7) into an electromagnetic wave signal and radiate it into space.

6. The OPenMV-based flying target signal assurance system according to claim 1, Features: The wireless transmission control unit (7) at the airborne load end is used to receive the electromagnetic wave signal radiated into space by the ground station end, and convert the electromagnetic wave signal into an electrical signal.

7. The OPenMV-based flying target signal assurance system according to claim 1, Features: The data of the ground display control terminal transceiver antenna (9) is used to convert the ground display control terminal wireless transmission control unit (15) into an electromagnetic wave signal and radiate it into space.

8. The OPenMV-based flying target signal assurance system according to claim 1, Features: The ground display control end wireless transmission control unit (15) is used to receive the electromagnetic wave signal radiated into space by the aerial load end, and convert the electromagnetic wave signal into an electrical signal and transmit it to the ground display control end wireless transmission control unit (15).

9. The OPenMV-based flying target signal assurance system according to claim 1, Features: The display (11) is used to display the data information collected by the airborne payload end and the ground station; The data storage unit (12) is used to store data sent by the MCU master control unit (10); The keyboard (14) is used to manually input parameter settings and control instructions for the airborne payload end.

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