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CN-122027075-A - Unmanned aerial vehicle interference equipment with low power consumption and controllable interference distance and control method thereof

CN122027075ACN 122027075 ACN122027075 ACN 122027075ACN-122027075-A

Abstract

The invention belongs to the technical field of electronic countermeasure, and discloses unmanned aerial vehicle interference equipment with low power consumption and controllable interference distance and a control method thereof, wherein the equipment comprises a target detection module, a main control module, a frequency source module, a high-precision numerical control attenuator module, a power amplification module, a grid voltage control module, a signal transmitting module and a feedback regulation module; all the modules are electrically connected to construct a complete closed loop link for forming interference signal generation-power regulation-signal emission-feedback regulation. The method is suitable for performing accurate and efficient prevention and control tasks on the unmanned aerial vehicle, achieves accurate control of interference output power and on-demand matching of interference distance, reduces equipment power consumption and improves endurance performance.

Inventors

  • Pan Baotian
  • ZHANG DONG
  • CHANG HAO
  • LIU CHUANWU
  • ZHANG NAITIAN

Assignees

  • 河北云山电子科技有限公司

Dates

Publication Date
20260512
Application Date
20260317

Claims (10)

  1. 1. The unmanned aerial vehicle interference equipment with low power consumption and controllable interference distance is characterized by comprising a target detection module, a main control module, a frequency source module, a high-precision numerical control attenuator module, a power amplification module, a grid voltage control module, a signal transmitting module and a feedback adjusting module; The target detection module is used for detecting the effective interference distance with the target unmanned aerial vehicle in real time and transmitting the detected parameter signals to the main control module; The main control module pre-stores a distance-power consumption mapping relation model, calculates to obtain the radio frequency output minimum power and the minimum total power consumption through the mapping relation model after receiving the parameter signals transmitted by the target detection module, generates a power control signal, transmits the power control signal to the high-precision numerical control attenuator module, generates a grid voltage control signal, transmits the grid voltage control signal to the grid voltage control module, and generates a modulation signal and transmits the modulation signal to the frequency source module; The frequency source module generates an interference signal covering the communication frequency band or the navigation frequency band of the unmanned aerial vehicle after the tuning voltage input end of the frequency source module receives the modulation signal output by the main control module, and transmits the interference signal to the high-precision numerical control attenuator module; the high-precision numerical control attenuator module is connected in series between the frequency source module and the power amplifier module, and after receiving the power control signal output by the main control module and the interference signal output by the frequency source module, the high-precision numerical control attenuator module carries out attenuation adjustment on the interference signal through the power control signal to output an attenuated interference signal, and transmits the attenuated interference signal to the power amplifier module; the grid voltage control module is electrically connected with the power amplifier module, receives the grid voltage control signal output by the main control module and outputs corresponding grid voltage for adjusting the grid voltage of the power amplifier module; the power amplification module receives the attenuated interference signal output by the high-precision numerical control attenuator module and amplifies the attenuated interference signal to the minimum power of radio frequency output under the regulation and control action of grid voltage; the signal transmitting module is used for radiating the interference signal amplified by the power amplification module to the target prevention and control area through the directional transmitting antenna so as to realize interference suppression of the target unmanned aerial vehicle; And the feedback regulation module is connected with the output end of the power amplification module, and is used for collecting and storing the actual output power of the amplified interference signal and feeding back the collected parameters and the storage index to the main control module.
  2. 2. The unmanned aerial vehicle interference device with low power consumption and controllable interference distance according to claim 1, wherein in the main control module, a distance-power consumption mapping relation model is constructed based on electromagnetic propagation loss theory and power amplification module working characteristics, and the expression of the distance-power consumption mapping relation model is as follows: Wherein, the For the rf output to be of minimum power, Is the output power of the power amplifier module, Is the threshold power of the receiver of the target unmanned aerial vehicle, In order to be a free-space path loss, The transmit antenna gain is directed for the signal transmitting module, In order to press the remaining amount of the product, The effective interference distance between the antenna and the target unmanned aerial vehicle is detected for the target detection module, For the operating frequency of the target unmanned aerial vehicle, In order to minimize the overall power consumption, For the purpose of power addition efficiency, To aid in power consumption.
  3. 3. The unmanned aerial vehicle interference device with low power consumption and controllable interference distance according to claim 1 or 2, wherein the main control module adopts a circuit with an STM32H743 type microprocessor chip as a core.
  4. 4. The low-power consumption and interference distance controllable unmanned aerial vehicle interference device according to claim 1 or 2, wherein the target detection module comprises a ranging unit for detecting target unmanned aerial vehicle distance parameters in real time; Distance measurement by distance measuring unit the precision is more than or equal to +/-0.5 m.
  5. 5. The low power consumption and controllable interference distance unmanned aerial vehicle interference device of claim 1 or 2, wherein the frequency source module employs an AD9910 signal generator.
  6. 6. The unmanned aerial vehicle interference device with low power consumption and controllable interference distance according to claim 1 or 2, wherein the high-precision digital control attenuator module adopts an HMC1119LP4METR model digital control attenuator, the working frequency range is 100MHz-6GHz, and the insertion loss is <1.5dB; In the high-precision numerical control attenuator module, when the power control signal is used for carrying out attenuation adjustment on the interference signal to output the attenuated interference signal, the attenuation adjustment range is 0-60dB, and the precision is more than or equal to 0.1dB.
  7. 7. The unmanned aerial vehicle interference device with low power consumption and controllable interference distance according to claim 1 or 2, wherein the power amplification module adopts GTAH30050C6 type GaN power amplifier, the working frequency is 100MHz-3GHz, the power adjustment range is 1W-50W, and the linearity is > -40dBc; the output grid voltage range of the grid voltage control module is-6.5V-0V; The grid voltage control module is integrated with a voltage redundancy monitoring unit, and when the output grid voltage fluctuation exceeds a preset fluctuation threshold value, the main control module is triggered to perform voltage compensation.
  8. 8. The unmanned aerial vehicle interference device of claim 1 or 2, wherein the feedback adjustment module comprises a power sensor, a signal conditioning circuit and an output power monitoring and recording unit; the power sensor is arranged in a double redundancy way and is used for collecting the actual output power of the amplified interference signal in a double way, and the collection precision is more than or equal to +/-0.1W; The signal conditioning circuit is used for filtering, amplifying and analog-to-digital conversion processing of the collected signals of the power sensor; The output power monitoring and recording unit is used for carrying out time sequence storage on the time stamp and the actual output power according to the configuration period and supporting the external data export and power-off data storage; the main control module carries out deviation consistency check on the actual output power of the amplified interference signals acquired by the two paths of the power sensor, when the sensor deviation exceeds the limit, a grading alarm mechanism is triggered, relevant parameters are recorded, and when the consistency check is met, an average value is taken as the final actual output power.
  9. 9. A control method of a low-power-consumption and interference-distance-controllable unmanned aerial vehicle interference device, characterized in that the method is realized by adopting the low-power-consumption and interference-distance-controllable unmanned aerial vehicle interference device according to any one of claims 1 to 8, and comprises the following steps: s1, after equipment is started and initialization is completed, a target detection module detects the effective interference distance with a target unmanned aerial vehicle in real time and transmits detected parameter signals to a main control module; S2, the main control module calls a prestored distance-power consumption mapping relation model, calculates to obtain radio frequency output minimum power and minimum total power consumption according to parameters transmitted by the target detection module, generates a power control signal, a modulation signal and a grid voltage control signal according to calculation results, transmits the power control signal to the high-precision numerical control attenuator module, transmits the grid voltage control signal to the grid voltage control module, and transmits the modulation signal to the frequency source module; s3, after receiving the modulation signal output by the main control module, the tuning voltage input end of the frequency source module generates an interference signal of a preset frequency band, covers the communication frequency band or the navigation frequency band of the unmanned aerial vehicle, and transmits the interference signal to the high-precision numerical control attenuator module; S4, after the high-precision numerical control attenuator module receives the power control signal output by the main control module and the interference signal output by the frequency source module, carrying out attenuation adjustment on the interference signal and transmitting the attenuation adjustment to the power amplifier module; S5, the grid voltage control module adjusts grid voltage of the power amplification module according to the received grid voltage control signal, the power amplification module amplifies the received attenuated interference signal to the radio frequency output minimum power, and then the signal emission module radiates the interference signal to a target prevention and control area through the directional emission antenna; S6, the feedback regulation module collects the actual output power of the amplified interference signal in real time, and feeds the actual output power back to the main control module after storing the actual output power; And S7, the main control module corrects the power control signal according to the effective interference distance with the target unmanned aerial vehicle detected by the received target detection module and jumps to the step S3.
  10. 10. The control method of the unmanned aerial vehicle interference device with low power consumption and controllable interference distance according to claim 9, wherein the grid voltage control module is integrated with a voltage redundancy monitoring unit, and when the output grid voltage fluctuation exceeds a preset fluctuation threshold value, the main control module is triggered to perform voltage compensation; the feedback regulation module comprises a power sensor, a signal conditioning circuit and an output power monitoring and recording unit; the power sensor is arranged in a double redundancy way and is used for collecting the actual output power of the amplified interference signal in a double way, and the collection precision is more than or equal to +/-0.1W; The signal conditioning circuit is used for filtering, amplifying and analog-to-digital conversion processing of the collected signals of the power sensor; The output power monitoring and recording unit is used for carrying out time sequence storage on the time stamp and the actual output power according to the configuration period and supporting the external data export and power-off data storage; The main control module performs deviation consistency check on the actual output power of the amplified interference signals acquired by the two paths of the power sensor, when the sensor deviation exceeds the limit, triggers a grading alarm mechanism and records related parameters, and when the consistency check is met, the average value is taken as the final actual output power; The process of step S6 further includes: the main control module performs deviation consistency check on the actual output power of the amplified interference signals acquired by the two paths of the power sensor, when the sensor deviation exceeds the limit, triggers a grading alarm mechanism and records related parameters, and when the consistency check is met, an average value is taken as the final actual output power; the main control module calls the data of the voltage redundancy monitoring unit, and when the output grid voltage fluctuation exceeds a preset fluctuation threshold value, the main control module is triggered to carry out voltage compensation and record related parameters.

Description

Unmanned aerial vehicle interference equipment with low power consumption and controllable interference distance and control method thereof Technical Field The invention belongs to the technical field of electronic countermeasure, and relates to unmanned aerial vehicle interference equipment with low power consumption and controllable interference distance and a control method thereof. Background Unmanned aerial vehicle is used as an emerging aviation platform, is mainly applied to the military field in early stage, and bears tasks such as information reconnaissance, military mapping, communication relay and the like. Along with technological progress, industry maturity and improvement of people's living standard, unmanned aerial vehicle technique expands to civilian and consumption field fast, extensively permeates a plurality of industries such as amusement by plane, logistics distribution, agricultural plant protection, geographical mapping. However, the proliferation of the number of unmanned aerial vehicles and the popularity of applications also present an increasingly serious low-altitude security management challenge. Because of the light safety awareness or lack of effective supervision of some users, unmanned aerial vehicles fly unordered and break into the no-fly zone frequently. In recent years, cases of sensitive areas such as a core office area of an unmanned aerial vehicle rush into government, important landmark buildings, military control areas, and airport clearance areas have been repeated. Such behavior not only disturbs normal order, but also is more likely to endanger public safety and cause leakage of national confidential information, and the potential hazard is more serious if the behavior is utilized by lawbreakers. Therefore, developing efficient and reliable unmanned aerial vehicle management and control technology and equipment and constructing a perfect low-altitude security system become urgent demands for maintaining national security and social stability. The unmanned aerial vehicle interference device is one of the core technical means for implementing active prevention and control at present, and blocks or suppresses a control link and a navigation positioning signal (such as GPS/Beidou) of a target unmanned aerial vehicle by transmitting electromagnetic interference signals of a specific frequency band so as to force the target unmanned aerial vehicle to hover, return or land, thereby achieving the purpose of effective control. However, the existing interference equipment mainly has two main technical bottlenecks, namely, the equipment power consumption is high, the cruising ability is insufficient, the maneuvering deployment range is severely limited, the output power is mostly in a fixed gear or coarse adjustment mode, the interference distance management and control precision is low, and even if part of schemes have the power adjustable function, the requirements of the regulation and control precision and the low power consumption are still difficult to meet, and the use requirements of complex application scenes such as portability cannot be adapted. Therefore, how to design an unmanned aerial vehicle interference device capable of considering low power consumption characteristics and accurate and adjustable interference distance and realizing intelligent and self-adaptive control, so as to remarkably improve the endurance capacity, environmental adaptability and overall prevention and control efficiency of the device, has become a key technical problem to be solved in the field. Disclosure of Invention The invention aims to provide unmanned aerial vehicle interference equipment with low power consumption and controllable interference distance, wherein a numerical control attenuator is additionally arranged between a frequency source module and a power amplifier module to realize power pre-regulation and control, and a grid voltage control module is combined to regulate the grid voltage of the power amplifier module, so that the cooperative optimization of low power consumption characteristics and power output performance is realized, the accurate control of output power and the on-demand matching of the interference distance are ensured, and the energy utilization efficiency and the environmental adaptability of the equipment are effectively improved; Another object of the present invention is to provide a control method of an unmanned aerial vehicle interference device with low power consumption and controllable interference distance. The technical scheme adopted by the invention for realizing the purposes is as follows: The unmanned aerial vehicle interference equipment with low power consumption and controllable interference distance comprises a target detection module, a main control module, a frequency source module, a high-precision numerical control attenuator module, a power amplifier module, a grid voltage control module, a signal emission module and a feed