TW202005294A - System for preventing signal interference for a drone - Google Patents

Abstract

A system for preventing signal interference for a drone is provided to solve the problem where the conventional drone tends to crash due to the incapability to receive a control signal under signal interference. The system includes a drone receiving an operating system with a wireless receiver and controlling the movement of the drone with a server according to the operating signal, a signal sensor sensing the signal strength of the operating system and generating a signal strength value, and a processor analyzing whether the signal strength value is smaller than a threshold value. If the analyzed result is positive, an avoidance signal is generated and sent to the server such that the server controls the drone to leave the area according to the avoidance signal.

Description

Drone avoidance interference signal system

The invention relates to an interference avoidance signal system of an unmanned aerial vehicle, in particular to an avoidance system capable of enabling the unmanned aerial vehicle to fly away from the current position independently to avoid the interference signal range when the unmanned aerial vehicle is subjected to signal interference.

In recent years, due to the vigorous development of drones, drones are no longer restricted to military applications, but have been gradually extended to people's livelihood applications. For example, people can use drones at various angles or altitude Empty shot.

However, due to legal regulations, private land, the location of government agencies or airport airspace, etc., do not allow unauthorized entry of drones without permission, and in order to prevent the invasion of drones, most are equipped with defensive weapons To drive off or shoot down the drone, for example, it can be a laser jamming gun. The laser jamming gun can send out jamming signals so that the drone cannot receive external signals, causing the drone to lose control and cause a crash to prevent the invasion of the drone.

The purpose of using a laser jamming gun to drive off or shoot down the drone is to prevent the random intrusion of the drone. However, some people use the laser jamming gun as a random attack on the drone to crash the drone in order to obtain fun props .

In view of this, it is necessary to provide an avoidance system that can avoid interference signals to prevent the drone from crashing due to the interference of the signals.

In order to solve the above problems, the object of the present invention is to provide an interference avoidance signal system for an unmanned aerial vehicle, which can enable the unmanned aerial vehicle to fly away from the current position to avoid an interference avoidance system within the range of the interference signal when the unmanned aerial vehicle is subjected to signal interference.

The "drone" mentioned in the entire text of the present invention refers to a power flying vehicle that does not require a person to ride, uses air buoyancy as a lift, and uses automatic or remote control to fly. It is a person with general knowledge in the relevant technical field of the present invention. Understandable.

The interference avoidance signal system of the unmanned aerial vehicle of the present invention includes: a body, a wireless signal receiver receiving an operation signal, a server electrically connected to the wireless signal receiver, and controlling the operation of the body according to the operation signal A signal strength sensor installed in the body and electrically connected to the wireless signal receiver, the signal strength sensor is used to sense the signal strength of the operation signal to generate a signal strength value; and a processor , Installed in the body and electrically connected to the server and the signal strength sensor, analyze whether the signal strength value is less than a signal threshold, if the analysis result is yes, generate and send an avoidance signal to the server, The server is controlled to fly away from the current position with the avoidance signal.

According to this, the UAV's jamming avoidance signal system of the present invention can analyze whether the drone is being attacked by signal interference based on the signal strength of the operation signal received by the signal strength sensor. At the moment, let the aircraft fly away from the current position autonomously to avoid the attack range of the interference signal. In this way, the drone will not be out of control because it cannot receive the operation signal, and it can re-receive the operation signal after leaving the attack range of the interference signal to restore the operation right of the drone, which has the effect of preventing the drone from losing control and crashing.

Wherein, the operation signal has a signal range, the processor analyzes whether the signal strength value within the signal range is less than the signal threshold, and if the analysis result is yes, generates and transmits the avoidance signal to the server. In this way, it can be ruled out that the reduction in the signal strength of the operation signal is because it is beyond the control range of the remote controller rather than being affected by signal interference, and has the effect of improving the accuracy of the system judgment.

After the body flies away from the current position, the signal strength sensor generates and transmits another signal strength value to the processor, and the processor calculates the signal difference between the other signal strength value and the signal strength value, if The signal difference is less than a threshold value, and generates and transmits an interference-free signal to the server, so that the server uses the interference-free signal to control the body to fly away from the original direction of travel. In this way, it has the effect of making the drone fly away from the source of the interference signal.

Wherein, if the other signal strength value is less than the signal threshold value, and the signal strength value of the other signal strength value within a time range continues to be less than the signal strength value, the out-of-interference signal is generated and transmitted to the server . In this way, it has the effect of further improving the accuracy of system judgment.

The interference avoidance signal system of the unmanned aerial vehicle of the present invention may further include a power sensor. The power sensor is used to sense the power of the body to generate a remaining power value. The power sensor is electrically connected to the power sensor. A processor, the processor confirms whether the remaining power value is less than a power threshold value, and if the confirmation result is yes, generates and transmits a return signal to the server, so that the server controls the aircraft to return to the flight with the return signal. In this way, it has the effect of preventing the drone from crashing due to insufficient power.

In order to make the above and other objects, features and advantages of the present invention more obvious and easy to understand, the following is a detailed description of preferred embodiments of the present invention, in conjunction with the attached drawings, as follows:

Please refer to FIG. 1, which is a preferred embodiment of the UAV's interference avoidance signal system of the present invention, which includes a body 1, a signal strength sensor 2 and a processor 3, wherein the signal strength sense The detector 2 and the processor 3 are respectively installed in the body 1, and the processor 3 is electrically connected to the signal strength sensor 2.

The airframe 1 may be an unmanned aerial vehicle (UAV). The appearance of the airframe 1 is not limited in this embodiment. For example, it may be a multi-axis rotorcraft or a fixed-wing aircraft, but not limited to this. . The body 1 can be used by a controller to emit radio waves for operation control with a remote controller C. Please refer to FIG. 2 together. Specifically, the body 1 can receive an operation signal sent by the remote controller C through a wireless signal receiver 11. The body 1 can be electrically connected to the wireless signal receiver 11 through a server 12, and the server 12 can control the body 1 to operate according to the operation signal.

The signal strength sensor 2 can be installed in the body 1, and the signal strength sensor 2 is electrically connected to the wireless signal receiver 11. The signal strength sensor 2 is used to sense the signal strength of the operation signal sent by the remote controller C to generate a signal strength value.

The processor 3 can be installed in the body 1 and electrically connected to the server 12 and the signal strength sensor 2. The processor 3 can be any circuit unit with functions of data processing, signal generation and control, for example, it can be a microcontroller, but not limited to this. The processor 3 analyzes whether the signal strength value is less than a signal threshold value, if the analysis result is yes, the processor 3 generates and transmits an avoidance signal to the server 12, so that the server 12 controls the Airframe 1 flew away from its current position. The signal threshold is the minimum signal strength required by the remote control C to control the body 1.

Wherein, the operation signal can have a signal range. The processor 3 analyzes whether the signal strength value within the signal range is less than the signal threshold value. If the analysis result is yes, the processor 3 generates and transmits the avoidance signal to the server 12.

Preferably, after the body 1 flies away from the current position, the signal strength sensor 2 re-senses the signal strength of the operation signal sent by the remote controller C to generate and transmit another signal strength value to the processing器3. The processor 3 judges whether the intensity value of the other signal is greater than the signal threshold value. If the judgment result is negative, it means that the body 1 is moving toward the signal source of an interference signal, and the processor 3 generates and transmits an off-interference The signal is sent to the server 12, so that the server 12 controls the body 1 to fly away from the original traveling direction with the signal of disengagement interference. If the judgment result is yes, it means that the body 1 may be gradually out of the interference range of the signal source. Wherein, if the other signal strength value is less than the signal threshold value, and the signal strength value of the other signal strength value within a time range continues to be less than the signal strength value, the processor 3 generates and transmits the out-of-interference signal To the server 12.

Wherein, the interference avoidance signal system of the unmanned aerial vehicle of the present invention may further include a power sensor 4. The power sensor 4 is used to sense the power of the body 1 to generate a remaining power value. The power sensor 4 is electrically connected to the processor 3, and the processor 3 confirms whether the remaining power value is less than a power threshold, and if the confirmation result is yes, the processor 3 generates and transmits a return signal to the servo 12 to enable the server 12 to control the body 1 to return to the home with the return signal. Wherein, the power threshold is to provide the minimum power required for the airframe 1 to return to flight.

For example, please refer to Figure 1, which is a simulated flight chart when the drone is controlled to avoid interference signals. The drone player sends an operation signal to control a drone flight with a remote control C. During the flight of the drone, the signal strength sensor 2 provided on the drone can continuously sense the signal strength of the operation signal To generate a signal strength value. The processor 3 analyzes whether the signal strength value within the signal range is less than the signal threshold, if the analysis result is yes, it means that the drone may be suffering from signal interference, such as interference from an electromagnetic interference gun E Affected by the signal, the processor 3 generates and transmits an avoidance signal to the server 12, so that the server 12 can use the avoidance signal to control the drone to fly away from the current position in any direction to avoid the interference signal attack .

Furthermore, after the drone flies away from the current position, the signal strength sensor 2 provided on the drone re-senses the signal strength of the operation signal sent by the remote controller C to generate another signal strength value. The processor 3 judges whether the value of the other signal strength is greater than the signal threshold, if the judgment result is negative, it means that the avoidance direction of the drone is heading toward the signal source of the interference signal, the processor 3 generates and Sending a disengagement interference signal to the server 12 enables the server 12 to control the drone to fly outside the direction of the signal source with the disengagement interference signal to avoid the interference signal attack. Wherein, if the other signal strength value is less than the signal threshold value, and the signal strength value of the other signal strength value within a time range continues to be less than the signal strength value, the processor 3 generates and transmits the out-of-interference signal To the server 12.

Furthermore, the power sensor 4 provided on the drone can be used to sense the power of the drone to generate a remaining power value. The processor 3 confirms whether the remaining power value is less than a power threshold value, and if the confirmation result is yes, generates and transmits a return signal to the server 12 so that the server 12 controls the drone to return to the home with the return signal.

In summary, the interference avoidance signal system of the drone of the present invention can analyze whether the drone is being attacked by the signal interference through the signal strength of the operation signal received by the signal strength sensor, and the interference signal At the moment of the attack, the aircraft flew away from the current position autonomously to avoid the attack range of the interference signal. In this way, the drone will not be out of control because it cannot receive the operation signal, and it can re-receive the operation signal after leaving the attack range of the interference signal to restore the operation right of the drone, which has the effect of preventing the drone from losing control and crashing.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with this art without departing from the spirit and scope of the present invention still makes various changes and modifications to the above-mentioned embodiments. The technical scope of the invention is protected, so the scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

1‧‧‧Body 11‧‧‧Wireless signal receiver 12‧‧‧Server 2‧‧‧Signal strength sensor 3‧‧‧Processor 4‧‧‧Power sensor C‧‧‧Remote controller E‧ ‧‧Electromagnetic interference gun

[Figure 1] The simulated flight diagram of the UAV's interference avoidance signal system of the present invention when the UAV is controlled to avoid interference signals. [Figure 2] The system architecture diagram of the interference avoidance signal system of the UAV of the present invention.

1‧‧‧Body

11‧‧‧Wireless signal receiver

12‧‧‧Server

2‧‧‧Signal strength sensor

3‧‧‧ processor

4‧‧‧Electricity sensor

C‧‧‧remote control

E‧‧‧Electromagnetic interference gun

Claims (5)

An interference avoidance signal system for an unmanned aerial vehicle includes: a body, a wireless signal receiver receiving an operation signal, a server electrically connected to the wireless signal receiver, and controlling the operation of the body according to the operation signal; A signal strength sensor is installed in the body and is electrically connected to the wireless signal receiver. The signal strength sensor is used to sense the signal strength of the operation signal to generate a signal strength value; and a processor is installed Set in the body and electrically connected to the server and the signal strength sensor, analyze whether the signal strength value is less than a signal threshold, and if the analysis result is yes, generate and send an avoidance signal to the server, so that the The server uses the avoidance signal to control the body to fly away from the current position. The interference avoidance signal system for drones as described in item 1 of the patent scope, wherein the operation signal has a signal range, and the processor analyzes whether the signal strength value within the signal range is less than the signal threshold, if analyzed As a result, the avoidance signal is generated and transmitted to the server. The interference avoidance signal system for drones as described in item 1 of the patent scope, wherein, after the body flies away from the current position, the signal strength sensor generates and transmits another signal strength value to the processor, the processing The device determines whether the intensity value of the other signal is greater than the threshold value of the signal, and if the result of the determination is negative, generates and transmits a disengagement signal to the server, so that the server controls the body to fly away from the original traveling direction. The interference avoidance signal system of the drone as described in item 3 of the patent scope, wherein, if the other signal strength value is less than the signal threshold value, and the signal strength value of the other signal strength value continues within a time range Less than the signal strength value, the out-of-interference signal is generated and transmitted to the server. The interference avoidance signal system for drones as described in any one of items 1 to 4 of the patent application scope also includes a power sensor, which is used to sense the power of the body to generate a remaining power Value, the power sensor is electrically connected to the processor, the processor confirms whether the remaining power value is less than a power threshold, if the confirmation result is yes, generates and transmits a return signal to the server, so that the server Use the return signal to control the aircraft to return home.

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