UAV countermeasure system based on aerial relay
By installing a relay system on the aircraft, detecting and feedbacking drone signals in the air, the problem of drone counter technology being short in complex environments is solved, monitoring and control at a longer distance is realized, and costs are reduced. Provides a low-cost solution.
Patent Information
- Application Number
- CN202110961762.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-08-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2041-08-20
AI Technical Summary
The existing drone countermeasure technology has short detection distances along the railway and in complex electromagnetic environments, especially when obstacles exist, making it difficult to effectively monitor and control the drone, resulting in blind spots and limited monitoring distances.
The drone counter system based on air relay is adopted. By installing a relay system on the aircraft, the drone signals are detected in the air and the results are fed back to the ground counter system, bypassing obstacles and expanding the detection range and increasing the monitoring distance.
The monitoring distance of drone countermeasures technology has been effectively expanded, avoiding detection blind spots caused by obstacles, reducing costs, and providing a low-cost solution to control drone activities along the railway.
Smart Images
Figure CN113708885B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of drone countermeasures, and in particular to a drone countermeasure system based on aerial relay. Background Art
[0002] With the popularization of drones, new threats have been posed to low-altitude safety in important areas such as railways and airports. Therefore, it is of great significance to monitor and control the illegal flight activities of drones entering important areas. Before countering drones, it is necessary to find the target, that is, to detect and track the drone target. At present, the relevant technology provides a radio detection using radio frequency scanning technology, which can monitor the different characteristics of different types of drone control signal waveforms.
[0003] For the railway line, except for passing through stations, most of the electromagnetic environment is relatively simple, and radio monitoring technology can be used for detection. However, the detection distance of radio monitoring technology in open areas is usually 3-6 kilometers. If there are obstacles blocking it, the detection distance will drop significantly. Due to the long distance along the railway, when the railway turns and passes through tunnels, the mountain will also block the signal above the railway line. These situations are unfavorable factors for the application of drone countermeasure technology in the railway area, resulting in a shorter monitoring distance for drone countermeasure technology. Summary of the invention
[0004] An embodiment of the present invention provides a drone countermeasure system based on air relay, which is used to improve the monitoring distance of drone countermeasure technology. The drone countermeasure system based on air relay includes:
[0005] The ground countermeasure system is deployed on the ground and is used to detect the wireless signal of the target drone and transmit a countermeasure signal after detecting the wireless signal of the target drone;
[0006] At least one relay system, each relay system is mounted on an aircraft so as to be deployed in the air through the aircraft. The relay system is used to detect the wireless signal of the target drone, and after detecting the wireless signal of the target drone, send the detection result to the ground countermeasure system or other adjacent relay systems.
[0007] Optionally, the ground countermeasure system and each relay system include a wireless communication module, and each relay system communicates with the ground countermeasure system through the wireless communication module to transmit the detection results of the relay system.
[0008] Optionally, the ground countermeasure system includes a first detection antenna, a first detection signal processing module and a processor; the first detection antenna is used to detect wireless signals; the first detection signal processing module is used to perform signal processing on the wireless signal detected by the first detection antenna; the processor is used to determine whether the wireless signal after signal processing is the wireless signal of the target drone.
[0009] Optionally, the processor is also used to parse the wireless signal in the detection result sent by the relay system to determine whether the wireless signal in the detection result is the same as the wireless signal processed by the first detection signal processing module; in the same case, the wireless signal is determined to be the wireless signal of the same target drone; in different cases, different wireless signals are respectively determined to be the wireless signal of the target drone.
[0010] Optionally, the ground countermeasure system also includes a countermeasure signal generating module and a countermeasure antenna; the countermeasure signal generating module is used to generate a countermeasure signal; the countermeasure antenna is used to transmit a countermeasure signal, and the processor is used to control the countermeasure signal generating module to generate a countermeasure signal when it is determined that the wireless signal is a wireless signal of the target drone.
[0011] Optionally, the processor is also used to determine the type of the target drone based on the detected wireless signal of the target drone, determine the frequency and waveform of the counter signal based on the type, and control the counter signal generating module to generate the counter signal according to the frequency and waveform.
[0012] Optionally, the ground countermeasure system also includes a memory, which is used to store the correspondence between the model of the drone and the characteristics of the wireless signal, and the characteristics of the wireless signal include the frequency and / or waveform of the wireless signal.
[0013] Optionally, the ground countermeasure system further includes a display module, and the display module is used to display the processing result of the processor.
[0014] Optionally, the ground countermeasure system further includes an alarm module, which is used to issue an alarm after the processor determines that the wireless signal is a wireless signal of the target drone.
[0015] Optionally, the relay system includes a second detection antenna and a second detection module, the second detection antenna is used to detect wireless signals; the second detection signal processing module is used to perform signal processing on the wireless signals detected by the second detection antenna.
[0016] In an embodiment of the present invention, a relay system is mounted on an aircraft so that it can be deployed in the air, thereby detecting the wireless signal of a drone in the air. After the relay system detects the wireless signal in the air, the detection result is fed back to the ground countermeasure system. Compared with the technical solutions in the prior art, the relay of at least one relay system deployed in the air can bypass the obstruction of obstacles, expand the detection range, and increase the detection distance, so that the ground countermeasure system can detect farther places and avoid detection blind spots caused by obstacles. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0018] Figure 1 Schematic diagram of an optional drone countermeasure system based on air relay in an embodiment of the present invention;
[0019] Figure 2 Schematic diagram of another optional drone countermeasure system based on air relay in an embodiment of the present invention;
[0020] Figure 3 is a schematic diagram of an optional ground countermeasure system in an embodiment of the present invention;
[0021] Figure 4 is a schematic diagram of another optional ground countermeasure system in an embodiment of the present invention;
[0022] Figure 5 Schematic diagram of another optional drone countermeasure system based on aerial relay in an embodiment of the present invention. DETAILED DESCRIPTION
[0023] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.
[0024] An embodiment of the present invention provides a UAV countermeasure system based on air relay, including a ground countermeasure system and at least one relay system.
[0025] like Figure 1 As shown, an optional drone countermeasure system based on air relay provided in an embodiment of the present invention includes a ground countermeasure system 101 and a relay system 103.
[0026] The ground countermeasure system 101 is arranged on the ground and is used to detect the wireless signal of the target drone and transmit a countermeasure signal after detecting the wireless signal of the target drone. For example, the target drone refers to an illegal drone, that is, a drone that enters the no-fly zone without permission. When judging whether the detected wireless signal is the wireless signal of the target drone, the judgment can be made based on the characteristics such as the frequency and waveform of the wireless signal.
[0027] The relay system 103 is mounted on an aircraft 102 so that the aircraft 102 flies in the air, so that the relay system 103 is deployed in the air. The relay system 103 is used to detect the wireless signal of the target drone, and after detecting the wireless signal of the target drone, the detection result is sent to the ground countermeasure system 101.
[0028] Optionally, the ground countermeasure system and each relay system include a wireless communication module, and each relay system communicates with the ground countermeasure system through the wireless communication module to transmit the detection results of the relay system. For example, the relay system 103 and the ground countermeasure system 101 can communicate through a wireless communication network. Exemplarily, the wireless communication network can be a mobile network (including 2G, 3G, 4G, 5G), a WIFI network (such as 2.4GHZ and 5.8GHZ), a data transmission and a dedicated network, etc.
[0029] In other examples, the drone countermeasure system based on aerial relay provided by the embodiments of the present invention may include more than one relay system, so that the detection range can be expanded.
[0030] like Figure 2 As shown, another optional drone countermeasure system based on air relay provided by an embodiment of the present invention includes a ground countermeasure system 101, a relay system 103 and a relay system 105. The relay system 105 is mounted on an aircraft 104. The relay system 105 can be used to detect the wireless signal of the target drone, and after detecting the wireless signal of the target drone, send the detection result to the ground countermeasure system 101.
[0031] Optionally, when the drone countermeasure system based on air relay includes more than one relay system, when any relay system detects the wireless signal of the target drone, it can be directly sent to the ground countermeasure system, or it can be sent to other adjacent relay systems, and then forwarded to the ground countermeasure system through other relay systems. In this way, when there is a problem in the communication connection between the relay system and the ground countermeasure system, the detection result can be transmitted back to the ground countermeasure system through another way.
[0032] Different relay systems can be deployed at different locations. Each relay system can be pre-configured with a number. When sending the detection results, the number of the relay system can be marked on the detection results, so that the ground countermeasure system can determine the location of the relay system based on the number.
[0033] In an embodiment of the present invention, a relay system is mounted on an aircraft so that it can be deployed in the air, thereby detecting the wireless signal of a drone in the air. After the relay system detects the wireless signal in the air, the detection result is fed back to the ground countermeasure system. Compared with the technical solutions in the prior art, the relay of at least one relay system deployed in the air can bypass the obstruction of obstacles, expand the detection range, and increase the detection distance, so that the ground countermeasure system can detect farther places and avoid detection blind spots caused by obstacles.
[0034] In an alternative example, Figure 3 As shown, the ground countermeasure system may include a first detection antenna 1011, a first detection signal processing module 1012, a processor 1013, and a wireless communication module 1010. The first detection antenna 1011 is used to detect wireless signals; the first detection signal processing module 1012 is used to perform signal processing on the wireless signals detected by the first detection antenna 1011; and the processor 1013 is used to determine whether the wireless signal after signal processing is the wireless signal of the target drone.
[0035] Optionally, if both the ground countermeasure system and the aerial relay system detect the wireless signal of the target UAV, a comparison can be performed to determine whether it is the same UAV. In this way, different processing is performed according to different judgment results.
[0036] Specifically, the processor 1013 can also be used to parse the wireless signal in the detection result sent by any relay system to determine whether the wireless signal in the detection result is the same as the wireless signal processed by the first detection signal processing module 1012. When the two wireless signals are the same, it is determined that the drone detected by the relay system and the ground countermeasure system is the same. In this way, it can be determined whether the wireless signal is the wireless signal of the target drone by performing a judgment once. When the two wireless signals are different, different wireless signals are judged to be the wireless signals of the target drone.
[0037] In one example, if Figure 4 As shown, the ground countermeasure system includes Figure 3In addition to the modules shown, a counter signal generating module 1014 and a counter antenna 1015 may also be included. The counter signal generating module 1014 is used to generate a counter signal; the counter antenna 1015 is used to transmit a counter signal, and the processor 1013 is used to control the counter signal generating module 1014 to generate a counter signal when it is determined that the wireless signal is a wireless signal of the target drone.
[0038] Optionally, the processor 1013 may also determine the type of the target drone based on the detected wireless signal of the target drone, and determine the frequency and waveform of the countermeasure signal based on the type, thereby controlling the countermeasure signal generation module 1014 to generate the countermeasure signal according to the frequency and waveform. Optionally, the ground countermeasure system may also include a memory, the memory is used to store the correspondence between the model of the drone and the characteristics of the wireless signal, and the characteristics of the wireless signal include the frequency and / or waveform of the wireless signal.
[0039] like Figure 4 As shown, the ground countermeasure system may further include a display module 1016, and the display module 1016 is used to display the processing result of the processor.
[0040] like Figure 4 As shown, the ground countermeasure system may further include an alarm module 1017, and the alarm module 1017 is used to issue an alarm after the processor 1013 determines that the wireless signal is a wireless signal of the target drone.
[0041] Optionally, the relay system may include a second detection antenna and a second detection module, wherein the second detection antenna is used to detect wireless signals; and the second detection signal processing module is used to perform signal processing on the wireless signals detected by the second detection antenna.
[0042] Optionally, the unmanned countermeasure system may further include the above-mentioned aircraft, which may be a drone, an airship, or an aerostat.
[0043] The embodiment of the present invention can bypass obstacles and expand the detection range when detecting along the railway line through the relay system deployed in the air; if there are no obstacles, the maximum detection distance of the radio detection technology can be expanded to at least twice the original. Since the aerial relay system does not process complex data, the equipment is not large in size and the power consumption is not high, the cost can be significantly reduced. Even if the cost of the aircraft is added, it is far lower than the ground station of the drone countermeasure system based on the aerial relay. It is a low-cost solution for controlling the railway line.
[0044] In the following, an optional drone countermeasure system based on aerial relay in an embodiment of the present invention is described in conjunction with an application scenario. Above an obstacle (usually a mountain) blocking the railway, an aircraft (usually a drone or an airship) is used to mount a set of drone radio detection systems (i.e., relay systems). The ground-based drone countermeasure system based on aerial relay can further expand the detection distance through the aerial relay system, and detection from the air can bypass the obstruction of obstacles. Through the relay of multiple aerial relay systems, it can detect farther places.
[0045] like Figure 5 As shown, the ground countermeasure system 1 includes a processor 2, an interaction module 3, a countermeasure module 4 (countermeasure signal generating module), a countermeasure antenna 5, a detection antenna 6 (first detection antenna), a detection module 7 (first detection signal processing module) and a communication module 8 (wireless communication module). The interaction module 3 may include a display module and an operation module, wherein the operation module is used for human-computer interaction, for example, it may be an input / output device such as a keyboard, a mouse, a microphone, a touch screen, etc.
[0046] The relay system 9 is mounted on an aircraft 10. The relay system 9 includes a communication module 11 (wireless communication module), a detection module 12 (a second detection signal processing module) and a detection antenna 13 (a second detection antenna).
[0047] like Figure 5 As shown, when the aircraft 10 is flying in the air, the relay system 9 can detect the wireless signal of the drone 14, but due to the obstruction of the obstacle 15, the ground countermeasure system 1 cannot detect the wireless signal of the drone 14. It can be seen that the aerial relay system can improve the detection range of the drone countermeasure system based on aerial relay and bypass the obstruction of obstacles.
[0048] In an exemplary workflow, after the ground countermeasure system 1 is turned on, the aircraft 10 with the relay system 9 is launched and starts working. Figure 5 When in an environment, due to the obstruction of obstacles, the detection antenna 6 in the ground countermeasure system 1 cannot detect the illegal drone 14, but at this time, the aerial relay system 9 is in the air, and its detection antenna 13 can monitor the drone 14, and feed back the detection result to the detection module 12 of the relay system 9. After the detection module 12 processes the wireless signal, it is determined to be an illegal drone. At this time, the communication module 11 of the relay system 9 can transmit this result to the communication module 11 of the ground countermeasure system 1, and then the processor 2 of the ground countermeasure system 1 performs analysis and processing, and the result of the analysis and processing is transmitted to the interaction module 3. If the result of the analysis and processing determines that countermeasure is needed, the countermeasure module 4 is controlled to generate a countermeasure signal and output it to the countermeasure antenna 5 to interfere with the countermeasure signal of the illegally intruding drone.
[0049] In another scenario, if the drone enters illegally in front of an obstacle, the ground countermeasure system 1 and the relay system 9 may detect the target at the same time. In this case, the relay system 9 still repeats the above process. After obtaining the detection result of the relay system 9, the ground countermeasure system 1 will compare the illegal drone detected by the detection antenna 6 and the detection module 7 with the detection result transmitted back by the relay system 9. If they are the same, countermeasures will be taken uniformly. If they are different, countermeasure signals will be determined separately for processing.
[0050] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A drone countermeasure system based on air relay, characterized in that: include: A ground countermeasure system is deployed on the ground and is used to detect the wireless signal of the target UAV and transmit a countermeasure signal after detecting the wireless signal of the target UAV; At least one relay system, each relay system is mounted on an aircraft so as to be deployed in the air through the aircraft, and the relay system is used to detect the wireless signal of the target UAV, and after detecting the wireless signal of the target UAV, send the detection result to the ground countermeasure system or other adjacent relay systems; Among them, it also includes: Different relay systems are deployed in different locations, and each relay system is pre-configured with a number; When sending the detection result, the number of the relay system is marked on the detection result; When the drone countermeasure system based on aerial relay includes more than one relay system, when any relay system detects the wireless signal of the target drone: Directly to a ground countermeasure system; or Send to other adjacent relay systems, and forward to the ground countermeasure system through other relay systems; The ground countermeasure system includes a first detection antenna, a first detection signal processing module and a processor; the first detection antenna is used to detect the wireless signal; the first detection signal processing module is used to perform signal processing on the wireless signal detected by the first detection antenna; the processor is used to determine whether the wireless signal after signal processing is the wireless signal of the target drone; The processor is also used to parse the wireless signal in the detection result sent by the relay system to determine whether the wireless signal in the detection result is the same as the wireless signal processed by the first detection signal processing module; if they are the same, determine that the wireless signal is the wireless signal of the same drone; if they are different, determine whether different wireless signals are the wireless signals of the target drone.
2. The drone countermeasure system based on air relay as claimed in claim 1, characterized in that: The ground countermeasure system and each of the relay systems include a wireless communication module, and each of the relay systems communicates with the ground countermeasure system through the wireless communication module to transmit the detection result of the relay system.
3. The drone countermeasure system based on air relay as claimed in claim 1, characterized in that: The ground countermeasure system also includes a countermeasure signal generating module and a countermeasure antenna; the countermeasure signal generating module is used to generate the countermeasure signal; the countermeasure antenna is used to transmit the countermeasure signal, and the processor is used to control the countermeasure signal generating module to generate the countermeasure signal when it is determined that the wireless signal is the wireless signal of the target drone.
4. The drone countermeasure system based on air relay as claimed in claim 3, characterized in that: The processor is also used to determine the type of the target drone based on the detected wireless signal of the target drone, determine the frequency and waveform of the counter signal based on the type, and control the counter signal generating module to generate the counter signal according to the frequency and waveform.
5. The drone countermeasure system based on air relay as claimed in claim 4, characterized in that: The ground countermeasure system also includes a memory, which is used to store the correspondence between the model of the drone and the characteristics of the wireless signal, where the characteristics of the wireless signal include the frequency and / or waveform of the wireless signal.
6. The drone countermeasure system based on air relay as claimed in claim 1, characterized in that: The ground countermeasure system further includes a display module, and the display module is used to display the processing result of the processor.
7. The drone countermeasure system based on air relay as claimed in claim 1, characterized in that: The ground countermeasure system also includes an alarm module, which is used to issue an alarm after the processor determines that the wireless signal is the wireless signal of the target drone.
8. The drone countermeasure system based on air relay as claimed in claim 1, characterized in that: The relay system includes a second detection antenna and a second detection signal processing module. The second detection antenna is used to detect the wireless signal. The second detection signal processing module is used to perform signal processing on the wireless signal detected by the second detection antenna.