An electronic fence system that interferes with drone communication and GPS signals
By deploying an interference system on the tethered airship to build the electronic fence boundary of the drone, the problem of ground deployment of electronic fences is solved, and efficient and low-cost drone signal interference and monitoring is achieved.
Patent Information
- Application Number
- CN202411902365.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-04-08
AI Technical Summary
In the prior art, electronic fences deployed on the ground are susceptible to environmental impact, high maintenance costs and complex installation.
An electronic fence system consisting of multiple interference systems deployed in airship tethered airships, including interference signal source components, power amplification components and filter components, is used to generate and enhance interference signals that interfere with the UAV communication signals and GPS signals to build the electronic fence boundary of the UAV.
The electronic fence system deployed at high altitude reduces environmental interference and ground space occupation, reduces maintenance costs, improves monitoring efficiency, and achieves effective interference to drone signals.
Smart Images
Figure CN119789043A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of unmanned aerial vehicles, and in particular to an electronic fence system that interferes with communication signals and GPS signals of unmanned aerial vehicles. Background Art
[0002] The core of electronic fence technology is to obtain GPS coordinates and cut off the communication link of drones. After turning on this function, the aircraft will greatly reduce the accuracy of the acquired GPS and lose the control ability of the drone. In related technologies, the deployment of traditional electronic fence systems basically adopts the method of arranging interference stations on the ground to establish electronic fences, which requires a lot of energy to achieve the purpose of interfering with drone signal acquisition. In addition, electronic fences deployed on the ground are easily affected by the environment, have high maintenance costs, and are complex to install. Therefore, a more reliable electronic fence system that interferes with drone communication signals and GPS signals is urgently needed.
[0003] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present application and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Summary of the invention
[0004] The purpose of this application is to provide an electronic fence system that interferes with the communication signals and GPS signals of drones, so as to solve the problems in the prior art that the electronic fences deployed on the ground are easily affected by the environment, have high maintenance costs, and are complex to install.
[0005] In order to solve the above problems, the electronic fence system for interfering with the communication signal and GPS signal of the drone involved in this application adopts the following technical solutions:
[0006] The electronic fence system is composed of multiple interference systems deployed on a tethered airship, and is used to construct the electronic fence boundary of the drone, wherein the interference system includes an interference signal source component, a power amplification component and a filtering component, wherein the interference signal source component is used to generate a first frequency interference signal that interferes with the drone's communication signal, and a second frequency interference signal that interferes with the drone's GPS signal, wherein the frequency of the first frequency interference signal is greater than the second frequency interference signal; the power amplification component is used to enhance the interference power of the second frequency interference signal generated by the interference signal source component; the filtering component is used to perform clutter filtering on the first frequency interference signal and the second frequency interference signal to obtain the first interference signal and the second interference signal that interfere with the drone's communication signal and GPS signal.
[0007] In order to solve the above problems, the present application relates to a method for constructing an electronic fence boundary that interferes with the communication signal and GPS signal of a drone, which is applicable to the electronic fence system that interferes with the communication signal and GPS signal of a drone involved in the present application. The method for constructing an electronic fence boundary that interferes with the communication signal and GPS signal of a drone adopts the following technical solutions:
[0008] According to the geographical boundaries and control strategies of the applied UAVs, the deployment locations of the tethered airships are selected, wherein the tethered airships are equipped with jamming systems;
[0009] Use system airships at different deployment locations as boundary points of the electronic fence;
[0010] The first interference signal and the second interference signal generated by the interference system corresponding to multiple boundary points are obtained, and based on the interference area composed of the first interference signal and the second interference signal at each boundary point, an electronic fence boundary that interferes with the communication signal and GPS signal of the drone is constructed.
[0011] In order to solve the above problems, an electronic device involved in the present application includes: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to execute the instructions to implement the method for constructing an electronic fence boundary that interferes with the communication signals and GPS signals of a drone involved in the present application.
[0012] In order to solve the above problems, the present application involves a non-temporary computer-readable storage medium. When the instructions in the storage medium are executed by a processor of an electronic device, the electronic device can execute the electronic fence boundary construction method for interfering with the communication signals and GPS signals of a drone involved in the present application.
[0013] In order to solve the above problems, the present application involves a computer program product, including a computer program, which, when executed by a processor in a communication device, implements the method for constructing an electronic fence boundary that interferes with the communication signals and GPS signals of a drone involved in the present application.
[0014] The beneficial effects of this application are as follows:
[0015] The electronic fence system is composed of multiple interference systems deployed on the tethered airship, which are used to construct the electronic fence boundary of the drone. The interference system includes an interference signal source component, a power amplifier component and a filter component. The interference signal source component is used to generate a first frequency interference signal and a second frequency interference signal that interfere with the drone's communication signal and GPS signal; the power amplifier component is used to enhance the interference power when the interference signal source component generates the second frequency interference signal; the filter component is used to perform clutter filtering on the first frequency interference signal and the second frequency interference signal to obtain the first interference signal and the second interference signal that interfere with the drone's communication signal and GPS signal. Therefore, by flexibly constructing the drone's electronic fence boundary in the interference system of the tethered airship, the environmental interference and ground space occupation of the electronic fence are reduced, and the monitoring efficiency of the electronic fence boundary is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solution of the embodiment of the present application, the following is a brief introduction to the drawings required for use in the embodiment:
[0017] Figure 1 A schematic diagram of the structure of an electronic fence system for interfering with the communication signal and GPS signal of a drone provided in an embodiment of the present application;
[0018] Figure 2 A schematic diagram of interference of an electronic fence system provided according to an embodiment of the present application;
[0019] Figure 3 A diagram showing a change in interference frequency of an electronic fence system provided according to an embodiment of the present application;
[0020] Figure 4 A schematic diagram of a flow chart of an electronic fence method for interfering with communication signals and GPS signals of a drone provided in an embodiment of the present application;
[0021] Figure 5 The present invention is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present application. DETAILED DESCRIPTION
[0022] In order to make the technical purpose, technical solution and beneficial effects of the present application clearer, the technical solution of the present application is further described below in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application, that is, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0023] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0024] It should be understood that, although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present application, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the embodiments of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at..." or "when..." or "in response to determination".
[0025] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.
[0026] It should be noted that the method provided in any embodiment of the present application can be executed alone, or can be executed in combination with possible implementation methods in other embodiments, or can be executed in combination with any technical solution in the related technology.
[0027] The deployment of traditional electronic fence systems basically adopts the method of arranging jammers on the ground to establish electronic fences, which requires a lot of energy to interfere with the acquisition of drone signals. In addition, electronic fences deployed on the ground are easily affected by the environment, have high maintenance costs, and are complex to install.
[0028] The following describes an electronic fence system for interfering with communication signals and GPS signals of a drone according to an embodiment of the present application with reference to the accompanying drawings.
[0029] Figure 1 A schematic diagram of the structure of an electronic fence system for interfering with the communication signals and GPS signals of a drone provided in an embodiment of the present application.
[0030] like Figure 1As shown, the electronic fence system is composed of multiple interference systems deployed on a tethered airship, which are used to construct the electronic fence boundary of the drone, wherein the interference system includes an interference signal source component, a power amplifier component and a filter component, the interference signal source component is used to generate a first frequency interference signal that interferes with the drone communication signal, and a second frequency interference signal that interferes with the drone GPS signal, the frequency of the first frequency interference signal is greater than the second frequency interference signal; the power amplifier component is used to enhance the interference power of the second frequency interference signal generated by the interference signal source component; the filter component is used to perform clutter filtering on the first frequency interference signal and the second frequency interference signal to obtain the first interference signal and the second interference signal that interfere with the drone communication signal and GPS signal.
[0031] Alternatively, if Figure 1 As shown, as an example, a drone can be controlled by a satellite's Global Positioning System (GPS) signal and a drone operator can control the drone by a telemetry signal (communication signal). At the same time, interference signals (a first interference signal and a second interference signal) output by the electronic fence system interfere with the GPS signal and the telemetry signal, respectively, so that the flight mission of a specific drone can be realized within the boundary of the electronic fence and the airspace isolation function can be realized for drones outside the boundary of the electronic fence.
[0032] Optionally, as an example, the tethered airship and the jamming system are controlled and monitored by a preset ground control station to regulate the boundaries of the electronic fence.
[0033] Optionally, the interference method of the first interference signal and the second interference signal to interfere with the drone communication signal and the GPS signal is based on a suppressed sweep frequency interference technology.
[0034] Specifically, Figure 2 As shown in the figure, the suppression-based sweep-frequency jamming technology suppresses the target signal (communication signal and GPS signal) through a high-power signal (first jamming signal and second jamming signal). In the wider target frequency band, the frequency is repeatedly scanned from low to high or from high to low according to a certain rule to form interference, and the jammer in the jamming signal source component emits a high-power signal, so that when the drone approaches the boundary of the electronic fence, there is a lot of noise in the signal received, and thus the drone cannot obtain the correct GPS information and control information, causing it to lose the ability to control the flight. The jamming effect is very significant. The jamming principle is as follows: Figure 2 As shown, with the power of the high-power signal as the ordinate and the frequency as the abscissa, the spectrum of the high-power signal (interference signal spectrum) suppresses the signal spectrum of the communication signal and the GPS signal.
[0035] In addition, if Figure 3As shown, the frequency of the interference signal (the first interference signal and the second interference signal) scans back and forth from the f1 to f2 frequency bands within a time period 2T, that is, the frequency scan from f1 to f2 shows an upward trend within the T time, and the frequency scan from f2 to f1 shows a downward trend within the T time to 2T time.
[0036] Optionally, the first interference signal and the second interference signal generate an interference area within a preset radius around the tethered airship, and the UAV loses communication signals and GPS signals in the interference area. Thus, the deployment position of the tethered airship can be designed according to the no-fly zone to achieve temporary control requirements for special areas.
[0037] Optionally, the interference signal source component includes a remote control signal interference unit and a GPS signal interference unit, wherein the remote control signal interference unit is used to generate a first frequency interference signal that interferes with the drone communication signal, and the GPS signal interference unit is used to generate a second frequency interference signal that interferes with the drone GPS signal.
[0038] The generation period of the first frequency interference signal and the second frequency interference signal may be 500 ns, but is not limited thereto, and this embodiment does not specifically limit this.
[0039] Optionally, when the GPS signal is a GPS positioning signal that interferes with 1.5 GHz and the communication signal is a 2.4 GHz remote control signal, the first frequency interference signal generated by the remote control signal interference unit is a remote control interference wave with a frequency range from 2.40 GHz to 2.47 GHz, and the second frequency interference signal generated by the GPS signal interference unit is a GPS interference wave between 1.565 GHz and 1.585 GHz.
[0040] Optionally, the clutter includes communication signals, and the filtering component performs communication signal filtering processing on the first frequency interference signal and the second frequency interference signal by suppressing the frequencies of 4.8 GHz to 5 GHz and 3.2 GHz to 3.4 GHz to obtain the first interference signal and the second interference signal that interfere with the communication signal and GPS signal of the drone.
[0041] Specifically, in order to optimize the spectral characteristics of the first frequency interference signal and the second frequency interference signal output by the interference signal source component, it is necessary to connect an appropriate filtering component at its output end. The filtering component can be implemented by a filter, and the main function of the filter is to filter out the clutter in the interference signal source (the first frequency interference signal and the second frequency interference signal) to be more accurate. Among them, taking into account the possible parasitic passband effects of the selected filter (bulk acoustic wave filter), this may cause the first frequency interference signal and the second frequency interference signal to leak at the frequency doubling. Therefore, the filtering component reduces the interference of 5G communication signals by suppressing the frequencies of 4.8GHz to 5GHz and 3.2GHz to 3.4GHz.
[0042] The electronic fence system for interfering with the communication signal and GPS signal of the drone in the embodiment of the present application is composed of a plurality of interference systems deployed on the tethered airship, which are used to construct the electronic fence boundary of the drone. The interference system includes an interference signal source component, a power amplifier component and a filter component. The interference signal source component is used to generate a first frequency interference signal and a second frequency interference signal that interfere with the communication signal and GPS signal of the drone; the power amplifier component is used to enhance the interference power when the interference signal source component generates the second frequency interference signal; the filter component is used to perform clutter filtering on the first frequency interference signal and the second frequency interference signal to obtain the first interference signal and the second interference signal that interfere with the communication signal and GPS signal of the drone. Thus, by flexibly constructing the electronic fence boundary of the drone in the interference system of the tethered airship, the environmental interference and ground space occupation of the electronic fence are reduced, and the monitoring efficiency of the electronic fence boundary is improved.
[0043] Figure 4 A flowchart of an electronic fence method for interfering with communication signals and GPS signals of a drone provided in an embodiment of the present application.
[0044] like Figure 4 As shown, the method for constructing an electronic fence boundary for interfering the communication signal and GPS signal of a drone is applicable to the electronic fence system for interfering the communication signal and GPS signal of a drone provided in the embodiment of the application, and the method for constructing an electronic fence boundary for interfering the communication signal and GPS signal of a drone includes but is not limited to the following steps:
[0045] S401, selecting the deployment location of the tethered airship according to the geographical boundaries and control strategies of the applied UAV, wherein the tethered airship carries a jamming system.
[0046] In a feasible implementation, the jamming system carried by each tethered airship can jam the signals of drones that enter the electronic fence boundary, preventing them from entering or forcing them to change their routes. The tethered airship and the jamming system are monitored and controlled in real time through a preset ground control station to ensure the normal operation and timely response of the electronic fence system.
[0047] S402, using system airships at different deployment locations as boundary points of the electronic fence.
[0048] In a feasible implementation, the flexible deployment of the electronic fence is achieved by using system airships at different deployment locations as boundary points of the electronic fence.
[0049] S403, obtaining the first interference signal and the second interference signal generated by the interference system corresponding to the plurality of boundary points, and constructing an electronic fence boundary that interferes with the communication signal and GPS signal of the UAV based on the interference area composed of the first interference signal and the second interference signal of each boundary point.
[0050] In a feasible implementation, the flight path of the UAV is planned and the take-off and landing points of the UAV are set according to the electronic fence boundary; the real-time position of the UAV is obtained; when the real-time position is within the electronic fence boundary, the UAV flies based on the flight path and the take-off and landing points; when the real-time position is outside the electronic fence boundary, the UAV is guided to perform a return operation.
[0051] Furthermore, when the real-time position is outside the boundary of the electronic fence, the drone is guided to perform a return operation, including: calculating the shortest navigation path from the real-time position to the boundary of the electronic fence, and based on the navigation path, controlling the drone to fly within the boundary of the electronic fence.
[0052] Therefore, the electronic fence boundaries deployed at high altitudes are less affected by ground obstacles and environmental factors, such as trees, animals, etc., which helps to reduce underreporting; at the same time, they can be quickly deployed and adjusted as needed, especially at construction sites that require mobile deployment, such as power or railway maintenance, to quickly define risk areas (electronic fence boundaries) and control them; they do not take up ground space, which is especially beneficial for occasions where land resources are limited or the ground needs to be kept unobstructed; in addition, high-altitude deployment can provide a wider field of view, help monitor a larger area, and improve monitoring efficiency. At the same time, since the electronic fence boundaries deployed at high altitudes are not easily affected by the direct impact of the ground environment, there is less maintenance, thereby reducing maintenance costs.
[0053] In summary, the electronic fence boundary construction method for interfering with the communication signal and GPS signal of the drone in the embodiment of the present application selects the deployment position of the tethered airship according to the geographical boundary and control strategy of the drone, wherein the tethered airship carries the interference system; the system airships at different deployment positions are used as the boundary points of the electronic fence; the first interference signal and the second interference signal generated by the interference system corresponding to the multiple boundary points are obtained, and the electronic fence boundary for interfering with the communication signal and GPS signal of the drone is constructed based on the interference area composed of the first interference signal and the second interference signal of each boundary point. Thus, a temporary traffic control method based on the electronic fence boundary of the drone is realized, and the flight mission of a specific drone can be realized inside the electronic fence boundary, and the function of airspace isolation can be realized for the drone outside the electronic fence boundary.
[0054] Figure 5 The present invention is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present application. Figure 5The electronic device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.
[0055] like Figure 5 As shown, the electronic device 500 includes a processor 501, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 502 or a program loaded from a memory 506 to a random access memory (RAM) 503. In the RAM 503, various programs and data required for the operation of the electronic device 500 are also stored. The processor 501, the ROM 502, and the RAM 503 are connected to each other via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.
[0056] The following components are connected to the I / O interface 505: a memory 506 including a hard disk, etc.; and a communication part 507 including a network interface card such as a LAN (Local Area Network) card, a modem, etc., and the communication part 507 performs communication processing via a network such as the Internet; a drive 508 is also connected to the I / O interface 505 as needed.
[0057] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 507. When the computer program is executed by the processor 501, the above-mentioned functions defined in the method of the present application are executed.
[0058] In an exemplary embodiment, a storage medium including instructions is also provided, such as a memory including instructions, and the instructions can be executed by the processor 501 of the electronic device 500 to complete the above method. Optionally, the storage medium can be a non-transitory computer-readable storage medium, for example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
[0059] In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, apparatus, or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.
[0060] Finally, it should be noted that the above embodiments are only used to illustrate but not limit the technical solutions of the present application. Any equivalent substitutions of the present application and any modifications or partial substitutions that do not depart from the spirit and scope of the present application shall be included in the scope of protection of the claims of the present application.
Claims
1. An electronic fence system that interferes with the communication signal and GPS signal of a drone, characterized in that: The electronic fence system is composed of multiple interference systems deployed on a tethered airship, and is used to construct the electronic fence boundary of the drone, wherein the interference system includes an interference signal source component, a power amplification component and a filtering component, wherein the interference signal source component is used to generate a first frequency interference signal that interferes with the drone's communication signal, and a second frequency interference signal that interferes with the drone's GPS signal, wherein the frequency of the first frequency interference signal is greater than that of the second frequency interference signal; the power amplification component is used to enhance the interference power of the interference signal source component when generating the second frequency interference signal; and the filtering component is used to perform clutter filtering processing on the first frequency interference signal and the second frequency interference signal to obtain the first interference signal and the second interference signal that interfere with the drone's communication signal and GPS signal.
2. The electronic fence system for interfering with the communication signal and GPS signal of a drone according to claim 1, characterized in that: The tethered airship and jamming system are controlled and monitored by a preset ground control station to regulate the boundaries of the electronic fence.
3. The electronic fence system for interfering with the communication signal and GPS signal of a drone according to claim 1, characterized in that: The interference method of the first interference signal and the second interference signal to the UAV communication signal and the GPS signal is based on a suppressive sweep frequency interference technology.
4. The electronic fence system for interfering with the communication signal and GPS signal of a drone according to claim 1, characterized in that: The first interference signal and the second interference signal generate an interference area within a preset radius around the tethered airship, and the UAV loses communication signals and GPS signals within the interference area.
5. The electronic fence system for interfering with the communication signal and GPS signal of a drone according to claim 1, characterized in that: The interference signal source component includes a remote control signal interference unit and a GPS signal interference unit, wherein the remote control signal interference unit is used to generate a first frequency interference signal that interferes with the drone communication signal, and the GPS signal interference unit is used to generate a second frequency interference signal that interferes with the drone GPS signal.
6. The electronic fence system for interfering with the communication signal and GPS signal of a drone according to claim 5, characterized in that: When the GPS signal is a GPS positioning signal that interferes with 1.5 GHz and the communication signal is a 2.4 GHz remote control signal, the first frequency interference signal generated by the remote control signal interference unit is a remote control interference wave with a frequency range from 2.40 GHz to 2.47 GHz, and the second frequency interference signal generated by the GPS signal interference unit is a GPS interference wave between 1.565 GHz and 1.585 GHz.
7. The electronic fence system for interfering with the communication signal and GPS signal of a drone according to claim 5, characterized in that: The clutter includes communication signals. The filtering component performs communication signal filtering processing on the first frequency interference signal and the second frequency interference signal by suppressing the frequencies of 4.8 GHz to 5 GHz and 3.2 GHz to 3.4 GHz to obtain the first interference signal and the second interference signal that interfere with the communication signal and GPS signal of the drone.
8. A method for constructing an electronic fence boundary that interferes with the communication signal and GPS signal of a drone, characterized in that: An electronic fence system for interfering with communication signals and GPS signals of a drone according to any one of claims 1 to 7, the method comprising: According to the geographical boundaries and control strategies of the applied UAVs, the deployment locations of the tethered airships are selected, wherein the tethered airships are equipped with jamming systems; Use system airships at different deployment locations as boundary points of the electronic fence; The first interference signal and the second interference signal generated by the interference system corresponding to multiple boundary points are obtained, and based on the interference area composed of the first interference signal and the second interference signal at each boundary point, an electronic fence boundary that interferes with the communication signal and GPS signal of the drone is constructed.
9. The method according to claim 8, characterized in that The method further comprises: According to the electronic fence boundary, plan the flight path of the drone and set the take-off and landing points of the drone; Get the real-time location of the drone; When the real-time position is within the boundary of the electronic fence, the UAV flies based on the flight path and the take-off and landing points; When the real-time position is outside the boundary of the electronic fence, the drone is guided to perform a return operation.
10. The method according to claim 9, characterized in that When the real-time position is outside the boundary of the electronic fence, guiding the drone to perform a return operation, including: The shortest navigation path from the real-time position to the boundary of the electronic fence is calculated, and based on the navigation path, the drone is controlled to fly within the boundary of the electronic fence.