System for unmanned aerial vehicle (UAV) interference with global navigation satellite system (GNSS) spoofing function and electronic device thereof

Abstract

This invention proposes a drone jamming system and its electronic device with Global Navigation Satellite System (GNSS) spoofing capability. After detecting and locking onto a target drone, the electronic device generates instruction information to guide the drone jammer to adjust its state before generating one or more sets of navigation and positioning spoofing signals. This interferes with or alters the target drone's positioning calculation, causing its GNSS positioning to malfunction or deviate to a predetermined virtual location. This drone jamming system is suitable for legally authorized test sites or security applications. It can also be combined with lock-on detection, start / stop control, output power / directivity adjustment, event logging, and security protection mechanisms to improve operational reliability and reduce the impact of non-target interference.

Claims

1. A drone jamming system, comprising: An electronic device is configured to search for and obtain a first location information of a drone in a space, and generate an instruction message based on the first location information and a second location information of the electronic device in the space, and generate a lock message based on the instruction message; and a drone jammer configured corresponding to the electronic device, wherein a state of the drone jammer is adjusted according to the instruction message, and the drone jammer emits a GNSS spoofing signal when the lock message instructs the drone jammer to lock onto the drone, thereby disrupting the drone's GNSS positioning and rendering it unable to operate normally.

2. The drone jamming system of claim 1, wherein the first position information includes a first coordinate value of the drone in the space, a first horizontal angle and a first vertical angle, and the second position information includes a second coordinate value of the electronic device in the space, a second horizontal angle and a second vertical angle.

3. The drone jamming system as claimed in claim 2, wherein the indication information includes a relative distance value obtained based on the first coordinate value and the second coordinate value, a horizontal angle indication information obtained based on the first horizontal angle and the second horizontal angle, and a vertical angle indication information obtained based on the first vertical angle and the second vertical angle.

4. The drone jamming system of claim 3, wherein the horizontal angle indication information includes a horizontal arrow indicating a horizontal movement direction from the second horizontal angle toward the first horizontal angle, and the vertical angle indication information includes a vertical arrow indicating a vertical movement direction from the second vertical angle toward the first vertical angle.

5. The UAV jamming system of claim 3, wherein the transmission angle of the GNSS spoofing signal emitted by the UAV jammer is adjusted according to the horizontal angle indication information and the vertical angle indication information to target the UAV.

6. The drone jamming system of claim 1, wherein the drone jammer is configured to simultaneously transmit GNSS signals / spoofing signals from one or more satellite systems, and the one or more satellite systems include at least one of GPS, Galileo, GLONASS and BeiDou.

7. The UAV jamming system as described in claim 6, wherein the GNSS spoofing signal is used to cause the UAV's GNSS positioning calculation results to be inaccurate, unusable, or deviated to abnormal positioning results.

8. The drone jamming system of claim 1 further includes a security protection module for limiting or prohibiting the drone jammer from emitting the GNSS spoofing signal when a locking condition is not met.

9. The drone jamming system of claim 8, wherein the security protection module further restricts or prohibits the drone jammer from emitting the GNSS spoofing signal based on at least one of authorization conditions, geofencing conditions, and whitelist conditions.

10. The drone jamming system of claim 1, wherein the electronic device also loads and displays an electronic map, and indicates the positions of the drone and the electronic device on the electronic map according to the first location information and the second location information.

11. The drone jamming system of claim 10, wherein the electronic device further calculates an optimal path between the drone and the electronic device based on the first location information and the second location information and marks the optimal path on the electronic map.

12. The drone jamming system of claim 10, wherein the drone jammer has a return-to-home mode, a left-flying mode, a right-flying mode, and a landing mode that causes the drone to deviate from its flight path. When the user selects one of the return-to-home mode, the left-flying mode, the right-flying mode, and the landing mode, the drone jamming system calculates the coordinates of a plurality of fake satellite positions based on the original coordinates of the drone and the mechanism of the aircraft's built-in no-fly zone. The drone jammer then transmits the coordinates of the plurality of fake satellite positions through the GNSS spoofing signal, so that a control device of the drone obtains the new coordinates of the drone and the coordinates on the electronic map will change accordingly.

13. The drone jamming system of claim 1, wherein the drone jammer has a bracket and the electronic device is mounted on the bracket, and an operating screen of the drone jammer is connected to the electronic device, or the electronic device is integrated inside the drone jammer.

14. The drone jamming system of claim 1, wherein the drone jammer is handheld and portable, and the drone jammer receives external GNSS signals to obtain a real satellite position; the electronic device identifies a communication signal between the drone and its control device in the environment, and the electronic device calculates the first position information of the drone in the space by capturing the communication signal.

15. The UAV jamming system of claim 1, wherein the GNSS spoofing signal emitted by the UAV jammer has a specific displacement, causing the UAV to misjudge that its own coordinates are shifted upward, thereby inducing a flight control system of the UAV to perform a reverse compensation action, so that the UAV jamming system can correct the UAV downward or reverse control the UAV.

16. The UAV jamming system of claim 1, wherein at the instant the UAV jammer emits the GNSS spoofing signal, it provides a high-power multi-system signal that is connected to the target state, so that the UAV, without any comparison, is guided by a flight control system of the UAV to a preset offset trajectory, without generating an instantaneous coordinate jump that would trigger an alarm.

17. The UAV jamming system of claim 1, wherein when the UAV jamming system optimizes the transmission timing of the GNSS deception signal emitted by the UAV jammer, the UAV jamming system tests a set of optimal reaction times for different UAV models. At the moment when the UAV jammer locks onto the UAV, the UAV jamming system accurately grasps the timing of the UAV jammer emitting the GNSS deception signal to ensure that the GNSS deception signal can be connected to the UAV's positioning calculation, so as to achieve rapid and stable induction of different UAV models.

18. An electronic device having unmanned aerial vehicle (UAV) interference indication and lock-on control functions, the electronic device comprising: An acquisition module is used to search for a drone in a space and acquire a first location information of the drone in the space and a second location information of the electronic device in the space; a generation module is coupled to the acquisition module to generate an instruction message based on the first location information and the second location information, and to generate a lock message based on the instruction message. And a communication module coupled to the generating module, for transmitting the indication information and the locking information to a drone jammer corresponding to the electronic device, so as to control the drone jammer to output a GNSS spoofing signal when the locking information indicates that the lock is established.

19. The electronic device of claim 18, wherein the locking information is generated based on whether a horizontal angle and a vertical angle corresponding to the indication information fall within a predetermined allowable range.

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