Anti-unmanned aerial vehicle control system of positive and negative 45-degree orthogonal dual-polarization cross antenna

Abstract

The invention provides a positive and negative 45-degree orthogonal dual-polarization cross antenna anti-unmanned aerial vehicle control system. The system comprises a main control module, wherein the main control module is connected with a touch screen panel, a power supply main switch, a rechargeable lithium polymer battery and a radio frequency module; the radio frequency module controls each frequency band to generate interference signals through the touch screen module, and then the interference signals are sent out through the multi-frequency-band antenna module; a positive-negative 45-degree orthogonal dual-polarization cross antenna is arranged in the multi-band antenna module, and power is supplied at the same time through two different feed networks, so that an antenna element generates radiation in two orthogonal directions, processes two orthogonal polarization signals at the same time, and emits electromagnetic waves in a horizontal and vertical dual-polarization mode; the main control module controls the radio frequency module to emit electromagnetic wave signals; the multi-band antenna module generates and amplifies a radio frequency signal through a positive-negative 45-degree orthogonal dual-polarization cross antenna, and transmits the radio frequency signal to a target unmanned aerial vehicle. According to the invention, a shield-shaped appearance is adopted and is not sensitive, and electromagnetic wave emission is crossed emission; and the touch screen is adopted for operation, so that opening is more convenient and quicker.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-UAV, and in particular to an anti-UAV control system with orthogonal dual-polarization cross antennas at plus or minus 45 degrees. Background Art

[0002] Anti-UAV system refers to the anti-UAV defense system that counters UAV systems, including missile strikes on UAVs, UAV early warning and monitoring, electronic interference, laser interception and other technical system means, which belong to anti-UAV technology.

[0003] Existing anti-drone technologies have the following problems:

[0004] (1) Existing anti-noise technologies mostly use gun-shaped appearance and PCB sheet antennas, which are sensitive in appearance and have poor performance;

[0005] (2) The electromagnetic waves are transmitted horizontally, and cannot effectively interfere with frequency-hopping, high-power remote control signal drones;

[0006] (3) Anti-UAV antennas are large, have low gain, and are inconvenient to assemble;

[0007] (4) Low electromagnetic wave transmission efficiency and high loss

[0008] (5) When the existing countermeasure equipment is in full power state, the entire circuit system cannot meet the requirements of high current discharge, and the design of the entire countermeasure circuit system is unreasonable;

[0009] (6) The polarization mode is single. Summary of the invention

[0010] The object of the present invention is to solve at least one of the technical drawbacks.

[0011] To this end, the purpose of the present invention is to propose an anti-UAV control system with orthogonal dual-polarization cross antennas of plus or minus 45 degrees to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0012] In order to achieve the above object, an embodiment of the present invention provides a positive and negative 45 degree orthogonal dual polarization cross antenna anti-UAV control system, comprising:

[0013] Touch screen panel, main power switch, charging socket, main control module, rechargeable lithium polymer battery, RF module and multi-band antenna module, among which,

[0014] The main control module is connected to the touch screen panel, the main power switch, the rechargeable lithium polymer battery and the radio frequency module, the charging socket is connected to the main power switch and the rechargeable lithium polymer battery, and the radio frequency module is further connected to the multi-band antenna module;

[0015] The rechargeable lithium polymer battery supplies power to the main control module, touch screen panel, radio frequency module and multi-band antenna module;

[0016] After the radio frequency module controls each frequency band to generate interference signals through the touch screen module, the interference signals are emitted through the multi-band antenna module;

[0017] The multi-band antenna module is equipped with a positive and negative 45° orthogonal dual-polarization cross antenna, which is powered simultaneously by two different feeding networks, so that the antenna element radiates in two orthogonal directions, processes two orthogonal polarization signals at the same time, and transmits electromagnetic waves in horizontal and vertical dual polarizations;

[0018] The main control system controls the radio frequency module to transmit electromagnetic wave signals; the multi-band antenna module generates and amplifies radio frequency signals through positive and negative 45° orthogonal dual-polarization cross antennas, and transmits them to the target drone to interfere with the drone's communication channel.

[0019] Preferably, from any of the above schemes, the multi-band antenna module comprises: an orthogonal dual-polarization cross anti-UAV antenna, an antenna cover, shell fixing screws and an antenna supporting aluminum plate, wherein the orthogonal dual-polarization cross anti-UAV antenna is mounted on the antenna supporting aluminum plate and is built into the antenna cover, and the antenna cover is fixed by the shell fixing screws.

[0020] Preferably, any of the above schemes is that a handle and a touch screen for controlling the opening and closing of the radio frequency module are provided on the antenna cover of the multi-band antenna module.

[0021] Preferably, any of the above schemes comprises: the electromagnetic wave signal emitted by the radio frequency module comprises: a communication signal between the drone and the remote controller, a navigation signal of the drone and an image transmission signal.

[0022] Preferably, any of the above schemes is that the main control module is used to realize single-channel control of radio frequency switch control and combined switch control.

[0023] Preferably, any of the above solutions is that the main control module controls the following channel frequency bands by a single-channel control RF switch according to the instructions issued by the touch screen panel:

[0024] First channel: 868MHz / 915MHz;

[0025] Second channel: 1.5GHz;

[0026] Third channel: 2.4GHz;

[0027] Channel 4: 5.8GHz;

[0028] Fifth channel: 5333MHz~6000MHz.

[0029] Preferably, any of the above schemes is that the main control module implements combined switch control including: return, forced landing, global navigation satellite system positioning GNSS and wireless camera backhaul device FPV according to the instructions issued by the touch screen panel.

[0030] Preferably, any of the above schemes comprises a main display screen and a sub-display screen, wherein the main display screen displays a single-channel control RF switch, a return button, an emergency landing button, a global navigation satellite system positioning GNSS button and a wireless camera backhaul device FPV button.

[0031] Preferably, in any of the above schemes, the main display screen is a touch display screen, and the auxiliary display screen is an OLED display screen.

[0032] Preferably, any of the above schemes further comprises: a MOS tube group, wherein the MOS tube group is connected to the radio frequency module and is used to interfere with the communication channel of the drone.

[0033] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0034] 1. The appearance adopts a shield-shaped appearance, is insensitive, and the electromagnetic wave emission presents a cross-shaped emission;

[0035] 2. Touch screen control makes opening more convenient and quicker;

[0036] 3. Small and portable, with scientific circuit design;

[0037] 4. Crack down on special link drones such as consumer-grade / cross-country / fixed-wing drones.

[0038] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0040] Figure 1 It is a structural diagram of an anti-UAV control system with orthogonal dual-polarization cross antennas of + / - 45 degrees according to an embodiment of the present invention;

[0041] Figure 2 A schematic diagram of forward radiation power and backward radiation power of a directional antenna according to an embodiment of the present invention;

[0042] Figure 3 A schematic diagram of an orthogonal dual-polarization cross antenna with a positive and negative 45-degree angle transmitting electromagnetic waves to counter a drone according to an embodiment of the present invention;

[0043] Figure 4 is a schematic diagram of a vertical / horizontal dual-polarization antenna according to an embodiment of the present invention;

[0044] Figure 5 is a schematic diagram of a + / -45° dual-polarization antenna according to an embodiment of the present invention;

[0045] Figure 6 is a schematic diagram of a touch screen panel according to an embodiment of the present invention;

[0046] Figure 7 is a schematic diagram of a multi-band antenna module according to an embodiment of the present invention;

[0047] Figure 8 Schematic diagram of an outer cover of a multi-band antenna module according to an embodiment of the present invention.

[0048] Among them: 1-touch screen panel; 2-main power switch; 3-charging socket; 4-main control module; 5-rechargeable lithium polymer battery; 6-RF module; 7-multi-band antenna module; 8-housing fixing screws; 9-antenna bearing aluminum plate; 10-antenna cover. DETAILED DESCRIPTION

[0049] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0050] The overall solution to counter drones is as follows:

[0051] In terms of transmission mode, a single-polarized antenna usually requires two antennas when transmitting signals, one for horizontal signal transmission and the other for vertical signal transmission. This design makes the antenna more specific when processing signals in the polarization direction. However, a dual-polarized antenna can transmit and receive signals independently in the horizontal and vertical directions with one antenna, which not only simplifies the antenna structure, but also enhances the flexibility of the system and the reliability of the signal.

[0052] The antenna transmission method is a key component to achieve the propagation and reception of electromagnetic waves in space. The present invention locates the transmission direction as a directional antenna based on the directivity of the anti-UAV antenna radiation. Dual-polarization transmission has strong directionality and can concentrate electromagnetic waves to radiate electromagnetic waves in a specific direction. Directional antennas can cover electromagnetic wave signals more accurately.

[0053] The transmission working principle of the dual-polarized antenna is described below.

[0054] The orthogonal dual-polarized antenna is powered simultaneously by two different feeding networks, so that the antenna element radiates in two orthogonal directions. Each feeding network corresponds to a polarization mode, and the signal can switch freely between different polarization states. This design enables the antenna to adapt to different transmission environments and ensure the stability and clarity of the signal. The dual-polarized antenna can process two orthogonal polarization signals at the same time, namely horizontal and vertical dual-polarized electromagnetic waves.

[0055] ±45° orthogonal dual-polarized cross antenna anti-drone method: The countermeasure system first transmits electromagnetic wave signals through high-performance RF modules. The above electromagnetic wave signals include communication signals between the drone and the remote controller, the drone's navigation signals, image transmission signals, etc. The countermeasure system will electromagnetically suppress the entire drone communication signal to achieve the purpose of interfering with the drone.

[0056] Combine the following Figures 1 to 8 The anti-UAV control system of the positive and negative 45 degree orthogonal dual-polarization cross antenna in the embodiment of the present invention is described.

[0057] like Figure 1 As shown, the anti-UAV control system of the positive and negative 45 degree orthogonal dual-polarization cross antenna of the embodiment of the present invention includes: a touch screen panel 1, a main power switch 2, a charging socket 3, a main control module 4, a rechargeable lithium polymer battery 5, a radio frequency module 6 and a multi-band antenna module 7.

[0058] Specifically, the main control module 4 is connected to the touch screen panel 1, the main power switch 2, the rechargeable lithium polymer battery 5 and the radio frequency module 6, the charging socket 3 is connected to the main power switch 2 and the rechargeable lithium polymer battery 5, and the radio frequency module 6 is further connected to the multi-band antenna module 7.

[0059] The power source used in the present invention provides the necessary power support for generating and amplifying the radio frequency signal. The power source can be a battery or other power source integrated in the counter-shield.

[0060] In the embodiment of the present invention, a rechargeable lithium polymer battery 5 is used to supply power to the main control module 4, the touch screen panel 1, the radio frequency module 6 and the multi-band antenna module 7. The battery voltage is 33.6V.

[0061] The radio frequency module 6 generates interference signals in each frequency band through the touch screen module and then transmits the interference signals through the multi-band antenna module 7 .

[0062] The main control module 4 includes a main controller and a UART chipset. The main control module 4 controls the radio frequency module 6 to transmit electromagnetic wave signals. The electromagnetic wave signals transmitted by the radio frequency module 6 include: communication signals between the drone and the remote controller, navigation signals of the drone, and image transmission signals.

[0063] That is, ±45° orthogonal dual-polarization cross antenna anti-drone method: the countermeasure system first transmits electromagnetic wave signals through the high-performance RF module 6. These signals include communication signals between the drone and the remote control, navigation signals of the drone, image transmission signals, etc.

[0064] The multi-band antenna module 7 has a built-in positive and negative 45° orthogonal dual-polarization cross antenna. The positive and negative 45° orthogonal dual-polarization cross antenna is powered simultaneously through two different feeding networks, so that the antenna element radiates in two orthogonal directions, and processes two orthogonal polarization signals at the same time, emitting electromagnetic waves in horizontal and vertical dual polarization.

[0065] like Figure 7 and Figure 8 As shown, the multi-band antenna module 7 includes: an orthogonal dual-polarization cross anti-UAV antenna, an antenna cover 10, a shell fixing screws 8 and an antenna supporting aluminum plate 9, wherein the orthogonal dual-polarization cross anti-UAV antenna is installed on the antenna supporting aluminum plate 9 and is built into the antenna cover 10, and the antenna cover 10 is fixed by the shell fixing screws 8.

[0066] The antenna cover 10 of the multi-band antenna module 7 is provided with a handle and a touch screen for controlling the opening and closing of the radio frequency module 6 .

[0067] The multi-band antenna module 7 generates and amplifies radio frequency signals through a positive and negative 45° orthogonal dual-polarization cross antenna, and transmits them to the target UAV to interfere with the communication channel of the UAV.

[0068] like Figure 2 As shown in the figure, the ratio of the forward radiated power of the directional antenna to the backward radiated power within ±45°. The interference electromagnetic wave is radiated forward and the electromagnetic wave is emitted in the direction of the drone. The antenna is a passive device and cannot generate energy. Antenna emission is the ability to effectively concentrate energy and radiate in a specific direction. The backward radiation can be ignored, which also ensures the safety of the user.

[0069] Figure 3 Schematic diagram of electromagnetic waves emitted by positive and negative 45 degree orthogonal dual polarization cross antennas to counter UAVs. Polarization: The trajectory or changing state of the electric field vector in space during the electromagnetic wave emission process.

[0070] 5333MHz~6000MHz orthogonal dual-polarized antenna transmits electromagnetic waves to counter drones, and can simultaneously radiate or receive two mutually orthogonal polarized waves to interfere with drones. Usually, dual-polarized antennas are two antennas combined as a whole, and each antenna transmits two independent waves. V / H (vertical / horizontal) dual-polarized antenna. Figure 4 Schematic diagram of a vertical / horizontal dual-polarized antenna.

[0071] Using vertical and horizontal polarization, for dual-polarized antennas, the 2R level difference required for polarization diversity cannot be too large. If the difference is too large, the diversity effect cannot be achieved. Therefore, when transmitting anti-UAV electromagnetic waves at 2.4GHz, + / -45° is used as a compromise to meet the requirements of cellular networking and achieve diversity transmission.

[0072] Figure 5 Schematic diagram of a + / -45° dual-polarization antenna according to an embodiment of the present invention.

[0073] ±45° orthogonal dual-polarization directional antenna, as a directional antenna, focuses the RF signal into a specific direction, which can improve the efficiency of the counter-shield targeting drones.

[0074] In addition, the main control module 4 is used to realize single-channel control of radio frequency switch control and combined switch control.

[0075] (1) Single-channel RF switch control

[0076] The main control module 4 controls the following channel frequency bands according to the instructions issued by the touch screen panel 1:

[0077] First channel: 868MHz / 915MHz;

[0078] Turn on the main switch 2 → press the 868MHz / 915MHz control switch → turn on the RF module 6 → connect the orthogonal antenna via a coaxial cable → the interference electromagnetic wave is emitted through the antenna.

[0079] Second channel: 1.5GHz;

[0080] Turn on the main switch 2 → press the 1.5GHz control switch → turn on the RF module 6 → connect the orthogonal antenna via a coaxial cable → the interference electromagnetic wave is emitted through the antenna.

[0081] Third channel: 2.4GHz;

[0082] Turn on the main switch 2 → press the 2.4GHz control switch → turn on the RF module 6 → connect the orthogonal antenna via a coaxial cable → the interference electromagnetic wave is emitted through the antenna.

[0083] Channel 4: 5.8GHz;

[0084] Turn on the main switch 2 → press the 5.8GHz control switch → turn on the RF module 6 → connect the orthogonal antenna via a coaxial cable → the interference electromagnetic wave is emitted through the antenna

[0085] Fifth channel: 5333MHz~6000MHz.

[0086] (2) Combination switch control

[0087] The main control module 4 implements the combined switch control including return, forced landing, global navigation satellite system positioning GNSS and wireless camera backhaul device FPV according to the instructions issued by the touch screen panel 1.

[0088] Return to home: 2.4GHz+5.8GHz

[0089] Turn on the main switch 2 → press the (return home) switch → turn on the RF module 62.4GHz+5.8GHz → connect the orthogonal antenna via coaxial cable → the interference electromagnetic wave is emitted through the antenna.

[0090] Forced landing: 2.4GHz+5.8GHz+1.5GHz

[0091] Turn on the main switch 2 → press the (forced landing) switch → turn on the RF module 62.4GHz+5.8GHz+1.5GHz → connect the orthogonal antenna via coaxial cable → the interference electromagnetic wave is emitted through the antenna.

[0092] GNSS: Global Navigation Satellite System

[0093] Turn on the main switch 2 → press the (GNSS) switch → turn on the RF module 61.5GHz → connect the orthogonal antenna via a coaxial cable → the interference electromagnetic wave is emitted through the antenna.

[0094] FPV: 868MHz+915MHz+5333MHz~6000MHz

[0095] Turn on the main switch 2 → press the (FPV) switch → turn on the RF module 6868MHz+915MHz+5333MHz~6000MHz → connect the orthogonal antenna via coaxial cable → the interference electromagnetic wave is emitted through the antenna.

[0096] like Figure 6 As shown, the touch screen panel 1 includes a main display screen and a sub-display screen, wherein the main display screen displays a single-channel control RF switch, a return button, an emergency landing button, a global navigation satellite system positioning GNSS button, and a wireless camera backhaul device FPV button.

[0097] In an embodiment of the present invention, the main display screen is a touch display screen, and the auxiliary display screen is an OLED display screen.

[0098] How it works: When an RF gun transmits RF signals, it interferes with the drone's communication channels. This interference can cause the drone to lose control, causing it to return to its point of origin (if it has GPS capability), land safely, or crash. The RF gun also interferes with the GPS signals that the drone uses for navigation, further increasing its effectiveness.

[0099] In addition, the positive and negative 45 degree orthogonal dual polarization cross antenna anti-UAV control system of the present invention also includes: a MOS tube group, which is connected to the radio frequency module and is used to interfere with the communication channel of the UAV.

[0100] Compared with the prior art, the present invention has the following beneficial effects:

[0101] 1. The appearance adopts a shield-shaped appearance, is insensitive, and the electromagnetic wave emission presents a cross-shaped emission;

[0102] 2. Touch screen control makes opening more convenient and quicker;

[0103] 3. Small and portable, with scientific circuit design;

[0104] 4. Crack down on special link drones such as consumer-grade / cross-country / fixed-wing drones.

[0105] Consumer level: O4+image transmission / channel transmission, etc.

[0106] Drones: ELRS series, FUTABA series, HGLRC series, DJIFPV digital image transmission system, TBS Black Sheep series, JR, FLYSKY series, Spektrum, FRSKY series, WFLY series, RadioLink series, JUMPER, ducted FPV series, Little Bee series, Jumper series, SIYIFM30 series, BETAFPV, Lightning, GEPRC series, McLaren, etc.

[0107] TBS UNIFY, JHEMCU, RUSH series, Panda series, HGLRC zeus, RUSHTANK, Magic Bee, Crazepony series, XF5805, Snail HD digital image transmission, E-Telecom EWR701U, etc.

[0108] Fixed wing: Hawa / Aspect / Range, etc.

[0109] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0110] It is not difficult for those skilled in the art to understand that the present invention includes any combination of the invention content and specific implementation methods of the above specification and the various parts shown in the drawings. Due to the limited space and to make the specification concise, the various schemes composed of these combinations are not described one by one. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0111] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A + / -45 degree orthogonal dual polarization cross antenna anti-UAV control system, characterized in that: include: Touch screen panel, main power switch, charging socket, main control module, rechargeable lithium polymer battery, RF module and multi-band antenna module, among which, The main control module is connected to the touch screen panel, the main power switch, the rechargeable lithium polymer battery and the radio frequency module, the charging socket is connected to the main power switch and the rechargeable lithium polymer battery, and the radio frequency module is further connected to the multi-band antenna module; The rechargeable lithium polymer battery supplies power to the main control module, touch screen panel, radio frequency module and multi-band antenna module; After the radio frequency module controls each frequency band to generate interference signals through the touch screen module, the interference signals are emitted through the multi-band antenna module; The multi-band antenna module is equipped with a positive and negative 45° orthogonal dual-polarization cross antenna, which is powered simultaneously by two different feeding networks, so that the antenna element radiates in two orthogonal directions, processes two orthogonal polarization signals at the same time, and transmits electromagnetic waves in horizontal and vertical dual polarizations; The main control system controls the radio frequency module to transmit electromagnetic wave signals; the multi-band antenna module generates and amplifies radio frequency signals through positive and negative 45° orthogonal dual-polarization cross antennas, and transmits them to the target drone to interfere with the drone's communication channel.

2. The anti-UAV control system with a positive and negative 45 degree orthogonal dual polarization cross antenna as claimed in claim 1 is characterized in that: The multi-band antenna module includes: an orthogonal dual-polarization cross anti-UAV antenna, an antenna cover, shell fixing screws and an antenna supporting aluminum plate, wherein the orthogonal dual-polarization cross anti-UAV antenna is installed on the antenna supporting aluminum plate and built into the antenna cover, and the antenna cover is fixed by the shell fixing screws.

3. The anti-UAV control system with a positive and negative 45 degree orthogonal dual polarization cross antenna as claimed in claim 2 is characterized in that: The antenna cover of the multi-band antenna module is provided with a handle and a touch screen for controlling the opening and closing of the radio frequency module.

4. The anti-UAV control system with a positive and negative 45 degree orthogonal dual polarization cross antenna as claimed in claim 1 is characterized in that: The electromagnetic wave signals emitted by the radio frequency module include: communication signals between the drone and the remote controller, navigation signals of the drone and image transmission signals.

5. The anti-UAV control system with a positive and negative 45 degree orthogonal dual polarization cross antenna as claimed in claim 1, characterized in that: The main control module is used to realize single-channel control of radio frequency switch control and combined switch control.

6. The anti-UAV control system with a positive and negative 45 degree orthogonal dual polarization cross antenna as claimed in claim 5, characterized in that: The main control module controls the following channel frequency bands by single-channel control of the RF switch according to the instructions issued by the touch screen panel: First channel: 868MHz / 915MHz; Second channel: 1.5GHz; Third channel: 2.4GHz; Channel 4: 5.8GHz; Fifth channel: 5333MHz~6000MHz.

7. The anti-UAV control system with a positive and negative 45 degree orthogonal dual polarization cross antenna as claimed in claim 5, characterized in that: The main control module implements the combined switch control including return, forced landing, global navigation satellite system positioning GNSS and wireless camera backhaul device FPV according to the instructions issued by the touch screen panel.

8. The anti-UAV control system with a positive and negative 45 degree orthogonal dual polarization cross antenna as claimed in claim 1, characterized in that: The touch screen panel includes a main display screen and a sub-display screen, wherein the main display screen displays a single-channel control RF switch, a return button, an emergency landing button, a global navigation satellite system positioning GNSS button, and a wireless camera return device FPV button.

9. The anti-UAV control system with a positive and negative 45 degree orthogonal dual polarization cross antenna as claimed in claim 8, characterized in that: The main display screen is a touch display screen, and the auxiliary display screen is an OLED display screen.

10. The anti-UAV control system with a positive and negative 45 degree orthogonal dual polarization cross antenna as claimed in claim 1, characterized in that: Also includes: A MOS tube group is connected to the radio frequency module and is used to interfere with the communication channel of the drone.

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