A drone detection and directional jamming system based on artificial intelligence technology

Abstract

The present invention relates to the technical field of unmanned aerial vehicles, and in particular to an unmanned aerial vehicle detection and directional interference system based on artificial intelligence technology, comprising a control center and at least three groups of detection interference devices distributed in a circular array; the detection interference device comprises an emitting light source and an imaging module, and the imaging angle of the imaging module is at least 120°; video information of the imaging module is obtained, and an image is extracted to determine whether there is a unmanned aerial vehicle in the detection area, and the judgment conditions include: whether there is a V-shaped dark area; whether there is a horizontal dark area; whether a continuous straight line is disconnected; whether a light spot or a block-shaped bright spot appears in the image; whether there is a bright reflective line; if any of the judgment conditions is yes, it is deemed that a unmanned aerial vehicle is detected, and interference is performed after the position is determined; the present invention uses more than three groups of detection interference devices, a emitting light source and an imaging module, and two groups of detection light sources form an intersection, and the other imaging module can use the intersection to locate the unmanned aerial vehicle and then interfere.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to an unmanned aerial vehicle (UAV) detection and directional interference system based on artificial intelligence technology. Background Art

[0002] Due to the small size of civil drones and the fact that most of them are made of non-metallic materials such as engineering plastics and carbon fiber, it is very difficult to detect them using radar. At the same time, the existing detection and interference are two systems, so when the detection results are fed back to the interference system, the drones may have achieved their purpose and returned, making the interference lose its target or meaningless. If radar is used, the cost is high and the impact on the surrounding environment is great. Therefore, there is a need for a drone detection and directional interference system based on artificial intelligence technology that can achieve drone detection and directional interference in a specific area and has a lower cost. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a drone detection and directional interference system based on artificial intelligence technology, which can realize drone detection and directional interference in a specific area and has lower cost.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] An artificial intelligence-based drone detection and directional jamming system includes a control center and at least three groups of detection and jamming devices;

[0006] The control center includes artificial intelligence, and the artificial intelligence controls the detection and interference devices; at least three groups of detection and interference devices are distributed in a circular array to form a detection area;

[0007] The detection interference device includes a pan-tilt platform, an emitting light source and an imaging module, the light emitted by the emitting light source includes a detection light source and an interference light source; the imaging angle of the imaging module is at least 120°, the imaging module includes a lens, a filter is arranged on the lens, the visible wavelength range of the filter includes the wavelength of the detection light source, and the wavelength of the interference light source is outside the visible wavelength range of the filter; the emitting light source is arranged on the pan-tilt platform, the pan-tilt platform drives the emitting light source to rotate at an angle that is the same as the imaging angle of the imaging module and drives the emitting light source to rotate back and forth along the imaging angle; the emitting light source and the imaging module are arranged up and down; the detection light source emitted by the emitting light source is a vertical and continuous light that forms a light band;

[0008] The artificial intelligence obtains and controls the pan-tilt rotation of each detection and interference device in real time, and obtains the video information of each imaging module at the same time, by selecting the positions of the other two detection and interference devices in the image as reference points, and calculating the distance between each point in the image and the two reference points in advance and generating a three-dimensional space coordinate system in advance; the artificial intelligence extracts each frame of the video information to determine whether there is a drone in the detection area, and the judgment conditions include: condition one, whether there are several V-shaped dark areas in the image; condition two, whether there are horizontal dark areas in the image; condition three, whether the continuous straight line formed by the detection light source in the image in the imaging module is disconnected; condition four, whether there are light spots or blocky bright spots in the image; condition five, whether there are bright reflective lines in the image;

[0009] The artificial intelligence obtains the judgment result of the judgment conditions. If any of the judgment conditions is yes, it is deemed that several drones are detected and their positions are determined. The position determination includes: the artificial intelligence controls the adjustment of the pan-tilt rotation angle of the detection and interference device so that the judgment condition satisfies the situation that condition one is yes or condition two is yes, or selects the images of the other two imaging modules at the same time so that the judgment condition satisfies the situation that condition one is yes or condition two is yes; when the artificial intelligence judges that condition one is yes, the acute angle position of the V shape is the drone coordinate; when the artificial intelligence judges that condition two is yes, the artificial intelligence turns off the dark area remaining after one of the detection light sources appears in the imaging module, and the starting position of the dark area is the drone coordinate; the drone coordinates are input into the three-dimensional space coordinate system; the artificial intelligence starts all emitting light sources and sends interference light sources to the drone position according to the three-dimensional space coordinate system.

[0010] The beneficial effects of the present invention are as follows: by using more than three groups of detection interference devices and utilizing their emitting light sources and imaging modules, during the detection process, the emitting light source can be driven to rotate by the rotation of the gimbal, so that a detection area can be formed in a specific range. The more detection interference devices there are, the larger the detection range will be. The three groups of detection interference devices can form an intersection using two groups of detection light sources, and the other imaging module can conveniently see the illumination of the drone by the intersection position. When the gimbal drives the emitting light source to rotate, the light band leaves surface marks and / or linear marks on itself or other imaging modules (formed when the vertical detection light source directly irradiates the imaging module); the light is blocked by the drone, causing the imaging module to form a surface mark, forming a V-shaped or linear (the height of the drone is exactly level with the emitting light source) dim area formed by partial obstruction, that is, conditions one and two; the linear mark is blocked and interrupted, that is, condition three; if the emitting light source irradiates the reflective part of the drone, such as the reflective line caused by the lens, the reflective light When the line is directly projected onto the imaging module, it will be a light spot. When the reflected line is not directly projected, it will be a reflected non-straight line, which will be brighter after the surface traces are superimposed, namely conditions four and five. In addition, combined with the establishment of a spatial three-dimensional model in advance, the two-dimensional image can be imported into the three-dimensional model after detection. Due to the existence of views from three angles, the possibility of condition one being achieved is extremely high. Through condition one, the coordinates of the drone can be quickly determined, while condition two is a relatively special case, that is, parallel to the detection light source, the position of the drone is determined by turning off a detection light source. By making the wavelength of the interfering light source outside the visible wavelength range of the filter, it is possible to avoid interference from interfering light to the imaging, ensuring that the interference will not affect the imaging effect. By adopting light-emitting light sources and imaging components, the cost of these components is very low, and low-cost detection can be achieved, avoiding the high cost of traditional radars and the problem of great impact on the surroundings. At the same time, the interfering light source is turned on when needed, which makes the startup cost low, avoiding the traditional interference that is interference at all times, which makes the working cost high. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A spatial distribution diagram of a drone detection and directional jamming system based on artificial intelligence technology according to a specific embodiment of the present invention;

[0012] Figure 2 This is a diagram of the first situation in which condition 1 occurs in a drone detection and directional jamming system based on artificial intelligence technology according to a specific implementation mode of the present invention;

[0013] Figure 3 This is a diagram of the second situation in which condition one occurs in a drone detection and directional interference system based on artificial intelligence technology according to a specific implementation mode of the present invention;

[0014] Figure 4A third situation diagram of condition 1 of a drone detection and directional jamming system based on artificial intelligence technology according to a specific implementation mode of the present invention;

[0015] Figure 5 This is a diagram showing a situation in which condition 2 occurs in a drone detection and directional jamming system based on artificial intelligence technology according to a specific embodiment of the present invention;

[0016] Figure 6 It is a schematic diagram of a drone detection and directional interference system based on artificial intelligence technology in a specific embodiment of the present invention, when condition 2 occurs, artificial intelligence turns off one of the detection light sources in the imaging module;

[0017] Figure 7 This is a diagram showing the situation in which conditions three and five occur in a drone detection and directional jamming system based on artificial intelligence technology in a specific embodiment of the present invention;

[0018] Figure 8 This is a diagram showing a situation in which condition 4 occurs in a drone detection and directional jamming system based on artificial intelligence technology according to a specific embodiment of the present invention;

[0019] Explanation of numbers: 1. Detection interference device; 2. Detection area; 3. UAV; 4. Image; 5. Dark area; 6. Continuous straight line; 7. Reflective line. DETAILED DESCRIPTION

[0020] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0021] Please refer to Figures 1 to 8 , a UAV 3 detection and directional jamming system based on artificial intelligence technology, comprising a control center and at least three groups of detection and jamming devices 1;

[0022] The control center includes artificial intelligence, and the artificial intelligence controls the detection and interference device 1; at least three groups of detection and interference devices 1 are distributed in a circular array to form a detection area 2;

[0023] The detection interference device 1 includes a pan-tilt platform, an emitting light source and an imaging module, the light emitted by the emitting light source includes a detection light source and an interference light source; the imaging angle of the imaging module is at least 120°, the imaging module includes a lens, a filter is arranged on the lens, the visible wavelength range of the filter includes the wavelength of the detection light source, and the wavelength of the interference light source is outside the visible wavelength range of the filter; the emitting light source is arranged on the pan-tilt platform, the pan-tilt platform drives the emitting light source to rotate at an angle that is the same as the imaging angle of the imaging module and drives the emitting light source to reciprocate along the imaging angle; the emitting light source and the imaging module are arranged up and down; the detection light source emitted by the emitting light source is a vertical and continuous light that forms a light band;

[0024] The artificial intelligence obtains and controls the pan-tilt rotation of each detection and interference device 1 in real time, and obtains the video information of each imaging module at the same time, selects the positions of the other two detection and interference devices 1 in the image 4 as reference points through the image 4, and calculates the distance between each point in the image 4 and the two reference points in advance and generates a three-dimensional space coordinate system in advance; the artificial intelligence extracts each frame of the image 4 in the video information to determine whether there is a drone 3 in the detection area 2, and the judgment conditions include: condition one, whether there are several V-shaped dark areas 5 on the image 4; condition two, whether there are horizontal dark areas 5 on the image 4; condition three, whether the continuous straight line 6 formed by the detection light source in the image 4 in the imaging module is disconnected; condition four, whether there are light spots or blocky bright spots in the image 4; condition five, whether there are bright reflective lines 7 in the image 4;

[0025] The artificial intelligence obtains the judgment result of the judgment condition. If any of the judgment conditions is yes, it is deemed that several drones 3 are detected and the position is determined. The position determination includes: the artificial intelligence controls the adjustment of the pan-tilt rotation angle of the detection and interference device 1 so that the judgment condition satisfies the situation that condition one is yes or condition two is yes, or selects the images 4 of the other two imaging modules at the same time so that the judgment condition satisfies the situation that condition one is yes or condition two is yes; when the artificial intelligence judges that condition one is yes, the acute angle position of the V shape is the coordinate of the drone 3; when the artificial intelligence judges that condition two is yes, the artificial intelligence turns off the dim area 5 of the remaining part after one of the detection light sources appears in the imaging module, and the starting position of the dim area 5 is the coordinate of the drone 3; the coordinate of the drone 3 is input into the three-dimensional space coordinate system; the artificial intelligence starts all the transmitting light sources and sends interference light sources to the position of the drone 3 according to the three-dimensional space coordinate system.

[0026] From the above description, it can be known that by using more than three groups of detection interference devices 1, using their emitting light sources and imaging modules, during the detection process, the emitting light source can be driven to rotate by the rotation of the gimbal, so that a specific range can form a detection area 2. The more detection interference devices 1 there are, the larger the detection range will be. The three groups of detection interference devices 1 can form an intersection using two groups of detection light sources, and the other imaging module can easily see the illumination of the intersection position on the drone 3. When the gimbal drives the emitting light source to rotate, the light band leaves surface marks and / or linear marks on itself or other imaging modules (formed when the vertical detection light source directly shines on the imaging module); the light is blocked by the drone 3, causing the imaging module to form a surface mark, forming a V-shaped or linear (the height of the drone 3 is exactly level with the emitting light source) dark area 5, that is, conditions one and two; if the linear trace is blocked, it will cause an interruption, that is, condition three; if the emitting light source illuminates the reflective part of the drone 3, such as the reflective line 7 caused by the lens, the reflection When the light 7 is directly irradiated on the imaging module, it is a light spot. When the reflected light 7 is not directly irradiated, it is a reflected non-straight line, which is brighter after the surface traces are superimposed, namely, conditions four and five. In addition, combined with the establishment of a spatial three-dimensional model in advance, the two-dimensional image 4 can be imported into the three-dimensional model after detection. Due to the existence of three-angle views, the possibility of condition one being achieved is extremely high. The coordinates of the drone 3 can be quickly determined through condition one, while condition two is a relatively special case, that is, parallel to the detection light source, and the position of the drone 3 is determined by turning off a detection light source. By making the wavelength of the interfering light source outside the visible wavelength range of the filter, it is possible to avoid interference from the interfering light to the imaging, ensuring that the interference will not affect the imaging effect. By adopting light-emitting light sources and imaging components, the cost of these components is very low, and low-cost detection can be achieved, avoiding the high cost of traditional radars and the problem of great impact on the surroundings. At the same time, the interfering light source is turned on when needed, which makes the startup cost low, avoiding the traditional interference that is interference at all times, which makes the working cost high.

[0027] Furthermore, after the artificial intelligence emits an interfering light source, it determines whether to stop emitting the interfering light source based on the judgment conditions. If conditions one to five are all no, it stops, otherwise it continues to work.

[0028] Furthermore, after the interference light source is emitted, the artificial intelligence obtains the position of the detected drone 3 in real time through the imaging module, and establishes a flight file of the drone 3 in the three-dimensional space coordinate system and saves it to the control center. The flight file includes the flight trajectory of the drone 3 from the position determination to the emission of the interference light source. The artificial intelligence determines whether the drone 3 returns after the interference light source is emitted based on the flight file. If so, the interference light source stops emitting after the drone 3 flies out of the detection area 2.

[0029] Furthermore, the light emitted by the emitting light source also includes a laser light source that can shoot down or burn the drone 3; if the artificial intelligence determines that the drone 3 does not return after emitting the interference light source, the laser light source is started to irradiate the drone 3 with a laser.

[0030] From the above description, it can be seen that by establishing a laser light source, the UAV 3 with strong anti-interference ability and ignoring interference can be directly shot down to ensure the safety within the detection area 2.

[0031] Furthermore, the artificial intelligence activates the laser light source and sends the laser light source to the position of the drone 3 according to the three-dimensional space coordinate system to achieve laser irradiation.

[0032] Furthermore, if there are multiple drones 3 that need to be irradiated with laser, they are sequenced for irradiation according to the time when the flight files exist.

[0033] From the above description, it can be seen that by sorting and irradiating according to the existence time of the flight files, if the file creation time is longer, it proves that the drone 3 has existed for a longer time, and there is a situation where the interference is ineffective.

[0034] Furthermore, by manually modifying the flight file and listing it as a safety file, the drone 3 cannot be irradiated with laser.

[0035] From the above description, it can be seen that by manually modifying the file into a safe file, operations such as testing and friend-or-foe identification can be performed.

[0036] Furthermore, during laser irradiation, if the laser falls on other detection and interference devices 1, the laser light source stops working.

[0037] Furthermore, the interference light source emitted by the emission light source is a light column. The interference light source is visible light.

[0038] It can be seen from the above description that by using a light column as an interference light source for irradiation, a sufficiently large coverage area can be ensured to irradiate and warn the lens of the target object.

[0039] Furthermore, from the above description, it can be seen that by combining visible light with all the emitting light sources to send an interference light source to the drone 3, it can be ensured that the lens of the drone 3 can obtain the warning information, and the pilot can return in time after receiving the information; the detection light source is visible light.

[0040] Furthermore, the detection interference device also includes a communication jammer based on FPGA, and the interference light source and the communication jammer work alternately.

[0041] From the above description, it can be seen that through additional communication jammers, alternating interference can be achieved to avoid the problem of failure of a single interference effect.

[0042] The detection light source and the interference light source of the present application can refer to the anti-fatigue laser light curtain of the highway in the prior art.

[0043] Embodiment 1

[0044] An artificial intelligence-based UAV 3 detection and directional jamming system comprises a control center and at least three groups of detection and jamming devices 1;

[0045] The control center includes artificial intelligence, and the artificial intelligence controls the detection and interference device 1; at least three groups of detection and interference devices 1 are distributed in a circular array to form a detection area 2;

[0046] The detection interference device 1 includes a pan-tilt platform, an emitting light source and an imaging module, the light emitted by the emitting light source includes a detection light source and an interference light source; the imaging angle of the imaging module is at least 120°, the imaging module includes a lens, a filter is arranged on the lens, the visible wavelength range of the filter includes the wavelength of the detection light source, and the wavelength of the interference light source is outside the visible wavelength range of the filter; the emitting light source is arranged on the pan-tilt platform, the pan-tilt platform drives the emitting light source to rotate at an angle that is the same as the imaging angle of the imaging module and drives the emitting light source to reciprocate along the imaging angle; the emitting light source and the imaging module are arranged up and down; the detection light source emitted by the emitting light source is a vertical and continuous light that forms a light band;

[0047] The artificial intelligence obtains and controls the pan-tilt rotation of each detection and interference device 1 in real time, and obtains the video information of each imaging module at the same time, selects the positions of the other two detection and interference devices 1 in the image 4 as reference points through the image 4, and calculates the distance between each point in the image 4 and the two reference points in advance and generates a three-dimensional space coordinate system in advance; the artificial intelligence extracts each frame of the image 4 in the video information to determine whether there is a drone 3 in the detection area 2, and the judgment conditions include: condition one, whether there are several V-shaped dark areas 5 on the image 4; condition two, whether there are horizontal dark areas 5 on the image 4; condition three, whether the continuous straight line 6 formed by the detection light source in the image 4 in the imaging module is disconnected; condition four, whether there are light spots or blocky bright spots in the image 4; condition five, whether there are bright reflective lines 7 in the image 4;

[0048] The artificial intelligence obtains the judgment result of the judgment condition. If any of the judgment conditions is yes, it is deemed that several drones 3 are detected and the position is determined. The position determination includes: the artificial intelligence controls the adjustment of the pan-tilt rotation angle of the detection and interference device 1 so that the judgment condition satisfies the situation that condition one is yes or condition two is yes, or selects the images 4 of the other two imaging modules at the same time so that the judgment condition satisfies the situation that condition one is yes or condition two is yes; when the artificial intelligence judges that condition one is yes, the acute angle position of the V shape is the coordinate of the drone 3; when the artificial intelligence judges that condition two is yes, the artificial intelligence turns off the dim area 5 of the remaining part after one of the detection light sources appears in the imaging module, and the starting position of the dim area 5 is the coordinate of the drone 3; the coordinate of the drone 3 is input into the three-dimensional space coordinate system; the artificial intelligence starts all the transmitting light sources and sends interference light sources to the position of the drone 3 according to the three-dimensional space coordinate system.

[0049] After the artificial intelligence emits an interfering light source, it determines whether to stop emitting the interfering light source based on the judgment conditions. If conditions one to five are all negative, it stops, otherwise it continues to work.

[0050] After the interference light source is emitted, the artificial intelligence obtains the position of the detected drone 3 in real time through the imaging module, and establishes a flight file of the drone 3 in the three-dimensional space coordinate system and saves it to the control center. The flight file includes the flight trajectory of the drone 3 from the position determination to the emission of the interference light source. The artificial intelligence determines whether the drone 3 returns after the interference light source is emitted based on the flight file. If so, the interference light source stops emitting after the drone 3 flies out of the detection area 2.

[0051] The light emitted by the emitting light source also includes a laser light source that can shoot down or burn the drone 3; if the artificial intelligence determines that the drone 3 does not return after emitting the interference light source, the laser light source is started to irradiate the drone 3 with laser.

[0052] The artificial intelligence starts the laser light source and sends the laser light source to the position of the drone 3 according to the three-dimensional space coordinate system to achieve laser irradiation.

[0053] If there are multiple drones 3 that need to be irradiated with laser, they are sequenced according to the time when the flight files exist.

[0054] By manually modifying the flight file and listing it as a safe file, the drone 3 cannot be irradiated with laser.

[0055] During laser irradiation, if the laser falls on other detection interference devices 1, the laser light source stops working.

[0056] The interfering light source emitted by the emitting light source is a light column.

[0057] By combining visible light with all the transmitting light sources to send an interference light source to the drone 3, it is possible to ensure that the lens of the drone 3 can obtain the warning information, and the pilot can return home in time after receiving the information; the detection light source is visible light.

[0058] Embodiment 2

[0059] An artificial intelligence-based drone 3 detection and directional jamming system comprises a control center and at least three groups of detection and jamming devices 1;

[0060] The control center includes artificial intelligence, and the artificial intelligence controls the detection and interference device 1; at least three groups of detection and interference devices 1 are distributed in a circular array to form a detection area 2;

[0061] The detection interference device 1 includes a pan-tilt platform, an emitting light source and an imaging module, the light emitted by the emitting light source includes a detection light source and an interference light source; the imaging angle of the imaging module is at least 120°, the imaging module includes a lens, a filter is arranged on the lens, the visible wavelength range of the filter includes the wavelength of the detection light source, and the wavelength of the interference light source is outside the visible wavelength range of the filter; the emitting light source is arranged on the pan-tilt platform, the pan-tilt platform drives the emitting light source to rotate at an angle that is the same as the imaging angle of the imaging module and drives the emitting light source to reciprocate along the imaging angle; the emitting light source and the imaging module are arranged up and down; the detection light source emitted by the emitting light source is a vertical and continuous light that forms a light band;

[0062] The artificial intelligence obtains and controls the pan-tilt rotation of each detection and interference device 1 in real time, and obtains the video information of each imaging module at the same time, selects the positions of the other two detection and interference devices 1 in the image 4 as reference points through the image 4, and calculates the distance between each point in the image 4 and the two reference points in advance and generates a three-dimensional space coordinate system in advance; the artificial intelligence extracts each frame of the image 4 in the video information to determine whether there is a drone 3 in the detection area 2, and the judgment conditions include: condition one, whether there are several V-shaped dark areas 5 on the image 4; condition two, whether there are horizontal dark areas 5 on the image 4; condition three, whether the continuous straight line 6 formed by the detection light source in the image 4 in the imaging module is disconnected; condition four, whether there are light spots or blocky bright spots in the image 4; condition five, whether there are bright reflective lines 7 in the image 4;

[0063] The artificial intelligence obtains the judgment result of the judgment condition. If any of the judgment conditions is yes, it is deemed that several drones 3 are detected and the position is determined. The position determination includes: the artificial intelligence controls the adjustment of the pan-tilt rotation angle of the detection and interference device 1 so that the judgment condition satisfies the situation that condition one is yes or condition two is yes, or selects the images 4 of the other two imaging modules at the same time so that the judgment condition satisfies the situation that condition one is yes or condition two is yes; when the artificial intelligence judges that condition one is yes, the acute angle position of the V shape is the coordinate of the drone 3; when the artificial intelligence judges that condition two is yes, the artificial intelligence turns off the dim area 5 of the remaining part after one of the detection light sources appears in the imaging module, and the starting position of the dim area 5 is the coordinate of the drone 3; the coordinate of the drone 3 is input into the three-dimensional space coordinate system; the artificial intelligence starts all the transmitting light sources and sends interference light sources to the position of the drone 3 according to the three-dimensional space coordinate system.

[0064] After the artificial intelligence emits an interfering light source, it determines whether to stop emitting the interfering light source based on the judgment conditions. If conditions one to five are all negative, it stops, otherwise it continues to work.

[0065] After the interference light source is emitted, the artificial intelligence obtains the position of the detected drone 3 in real time through the imaging module, and establishes a flight file of the drone 3 in the three-dimensional space coordinate system and saves it to the control center. The flight file includes the flight trajectory of the drone 3 from the position determination to the emission of the interference light source. The artificial intelligence determines whether the drone 3 returns after the interference light source is emitted based on the flight file. If so, the interference light source stops emitting after the drone 3 flies out of the detection area 2.

[0066] The interfering light source emitted by the emitting light source is a light column; the interfering light source is visible light (such as green light).

[0067] By combining visible light with all the emission light sources to send interference light sources to the drone 3, it can be ensured that the lens of the drone 3 can obtain warning information, and the pilot can return home in time after receiving the information; the detection light source is visible light (such as red light), and invisible light (such as infrared light / infrared, as long as it can be detected in conjunction with the filter). The detection light source and interference light source of this application can refer to the anti-fatigue laser light curtain of the highway in the prior art.

[0068] The detection interference device also includes a communication jammer based on FPGA, and the interference light source and the communication jammer work alternately.

[0069] The signal generation module of the communication jammer is based on the FPGA chip, and the clock signal of the FPGA is generated by a passive crystal oscillator. The VerilogHDL hardware descriptive language and the DDS principle are used to preliminarily realize the signal generation function. Specifically, the target signal generated by the MATLAB software is sampled at a certain frequency and stored in the IP core of the FPGAROM. According to the need for interference with the drone, the generated signals mainly include noise amplitude modulation signals, noise frequency modulation signals, narrow-band Gaussian white noise signals, linear frequency modulation signals, and multi-tone interference signals. According to the drone GPS frequency band of 1575.42MHz and the remote control frequency band of 2.4GHz, a double-sideband interference signal with a bandwidth of 100MHz in the drone target frequency band is generated after being mixed by AD9122 digital-to-analog conversion, and transmitted through an amplifier and a directional antenna to interfere with the drone.

[0070] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drone detection and directional jamming system based on artificial intelligence technology, characterized in that: It includes a control center and at least three sets of detection and jamming devices; The control center includes artificial intelligence, and the artificial intelligence controls the detection and interference devices; at least three groups of detection and interference devices are distributed in a circular array to form a detection area; The detection interference device includes a pan-tilt platform, an emitting light source and an imaging module, the light emitted by the emitting light source includes a detection light source and an interference light source; the imaging angle of the imaging module is at least 120°, the imaging module includes a lens, a filter is arranged on the lens, the visible wavelength range of the filter includes the wavelength of the detection light source, and the wavelength of the interference light source is outside the visible wavelength range of the filter; the emitting light source is arranged on the pan-tilt platform, the pan-tilt platform drives the emitting light source to rotate at an angle that is the same as the imaging angle of the imaging module and drives the emitting light source to rotate back and forth along the imaging angle; the emitting light source and the imaging module are arranged up and down; the detection light source emitted by the emitting light source is a vertical and continuous light that forms a light band; The artificial intelligence obtains and controls the pan-tilt rotation of each detection and interference device in real time, and simultaneously obtains the video information of each imaging module, selects the positions of the other two detection and interference devices in the image as reference points, calculates the distance between each point in the image and the two reference points in advance, and generates a three-dimensional space coordinate system in advance; Artificial intelligence extracts each frame of the video information to determine whether there is a drone in the detection area. The judgment conditions include: condition 1, whether there are several V-shaped dark areas on the image; condition 2, whether there are horizontal dark areas on the image; condition 3, whether the continuous straight line formed by the detection light source in the image is broken in the imaging module; condition 4, whether there are light spots or blocky bright spots in the image; condition 5, whether there are bright reflective lines in the image; The artificial intelligence obtains the judgment result of the judgment conditions. If any of the judgment conditions is yes, it is deemed that several drones are detected and their positions are determined. The position determination includes: the artificial intelligence controls the adjustment of the pan-tilt rotation angle of the detection and interference device so that the judgment condition satisfies the situation that condition one is yes or condition two is yes, or selects the images of the other two imaging modules at the same time so that the judgment condition satisfies the situation that condition one is yes or condition two is yes; when the artificial intelligence judges that condition one is yes, the acute angle position of the V shape is the drone coordinate; when the artificial intelligence judges that condition two is yes, the artificial intelligence turns off the dark area remaining after one of the detection light sources appears in the imaging module, and the starting position of the dark area is the drone coordinate; the drone coordinates are input into the three-dimensional space coordinate system; the artificial intelligence starts all emitting light sources and sends interference light sources to the drone position according to the three-dimensional space coordinate system.

2. The UAV detection and directional jamming system based on artificial intelligence technology according to claim 1 is characterized in that: After the artificial intelligence emits an interfering light source, it determines whether to stop emitting the interfering light source based on the judgment conditions. If conditions one to five are all negative, it stops, otherwise it continues to work.

3. The UAV detection and directional jamming system based on artificial intelligence technology according to claim 1 is characterized in that: After the interference light source is emitted, the artificial intelligence obtains the position of the detected drone in real time through the imaging module, and establishes the flight file of the drone in the three-dimensional space coordinate system and saves it to the control center. The flight file includes the flight trajectory of the drone from the position determination to the emission of the interference light source. The artificial intelligence determines whether the drone returns after the interference light source is emitted based on the flight file. If so, the interference light source stops emitting after the drone flies out of the detection area.

4. The UAV detection and directional jamming system based on artificial intelligence technology according to claim 3 is characterized in that: The light emitted by the emitting light source also includes a laser light source that can shoot down or burn the drone; if the artificial intelligence determines that the drone does not return after emitting the interference light source, the laser light source is activated to irradiate the drone with a laser.

5. The UAV detection and directional jamming system based on artificial intelligence technology according to claim 4 is characterized in that: Artificial intelligence activates the laser light source and sends the laser light source to the position of the drone according to the three-dimensional space coordinate system to achieve laser irradiation.

6. The UAV detection and directional jamming system based on artificial intelligence technology according to claim 4 is characterized in that: If there are multiple drones that need to be irradiated with laser, they will be sorted and irradiated according to the time the flight files exist.

7. The UAV detection and directional jamming system based on artificial intelligence technology according to claim 6 is characterized in that: By manually modifying the flight file and listing it as a safe file, the drone cannot be irradiated with laser.

8. The UAV detection and directional jamming system based on artificial intelligence technology according to claim 3 is characterized in that: During laser irradiation, if the laser falls on other detection interference devices, the laser light source stops working.

9. The UAV detection and directional jamming system based on artificial intelligence technology according to claim 1 is characterized in that: The interfering light source emitted by the emitting light source is a light column; the interfering light source is visible light.

10. The UAV detection and directional jamming system based on artificial intelligence technology according to claim 1 is characterized in that: The detection interference device also includes a communication jammer based on FPGA, and the interference light source and the communication jammer work alternately.

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