KR20190021875A - System and its Method for Detecting and Defeating Small Unmanned Aircrafts - Google Patents

Abstract

Provided are a system for detecting and incapacitating a small unmanned aircraft and an operation method thereof. The system for detecting and incapacitating a small unmanned aircraft includes: a detection and interception unit for detecting and intercepting a small unmanned aircraft; an operation control unit for showing location and information of the aircraft by a diagram when a signal of the detection and interception unit and controlling the detection and interception unit; and a confronting unmanned aircraft operation unit for operating a confronting unmanned aircraft as a confrontation means with the small unmanned aircraft. The operation method of the system includes: a tracing step of detecting and tracing a small unmanned aircraft; an aircraft discriminating step of discriminating whether or not the detected aircraft is a normal aircraft; a threat discriminating step of discriminating threat using a day and night optical sensor; a satellite navigation disturbing step for disturbing satellite navigation flight; a control signal disturbing step of disturbing a control signal if the control signal can be received from the unmanned aircraft; an aircraft removing step of directly removing the unmanned aircraft by dispatching the unmanned aircraft; a pilot managing step of taking warning or direct actions on a pilot by dispatching a confronting unmanned aircraft to the position of the control signal; and an aircraft removing step of physically removing the corresponding unmanned aircraft as a final means. The present invention which has the means for detecting and incapacitating the small unmanned aircraft can protect important country properties from various threats using small unmanned aircrafts and provide the optimum operation method suitable for given situations.

Description

TECHNICAL FIELD [0001] The present invention relates to a system for detecting and disabling a small unmanned aerial vehicle,

The present invention relates to a system and method for detecting and neutralizing a micro unmanned aerial vehicle, and more particularly, to a system and method for detecting a small unmanned aerial vehicle, A system and method for defending a critical facility from the threat of a small air vehicle by disabling the objective flight of the corresponding air carrier or intercepting the air carrier if it is judged.

The development of industrial and related technologies using a small unmanned aerial vehicle called drone all around the world is rapidly developing, but at the same time, illegal use such as the use of a small unmanned aerial vehicle and side effects such as collision with a manned airplane due to flying near an airport This is a very serious situation.

Especially, in Korea, frequent provocation by North Korea 's UAV has emerged as a very serious security problem until recently.

In order to solve these problems, attempts have been made to develop technologies and products for detecting and neutralizing small unmanned aerial vehicles in advance. However, recent small unmanned aerial vehicles such as drones are made of non-metallic materials as well as small- The conventional two-dimensional radar has a problem that it is not able to detect it, and it does not integrate means and method for effectively suppressing it even if it is detected.

Furthermore, in the case of mounting dangerous materials such as bombs, it is necessary to detect the approach of such small unmanned aerial vehicles in advance in order to secure the response time, and after detection, this approach can be effectively controlled depending on the given situation It is very important that the means are integrated.

Prior Art Documents which can be referred to in connection with this are Korean Patent No. 10-1436989 (Prior Art 1), Korean Patent No. 10-1551826 (Prior Art 2), Korean Patent No. 10-1572489 3), Korean Patent Publication No. 10-2016-0070384 (Prior Art 4), Korean Patent Publication 10-2017-0079782 (Prior Art 5), and the like.

In the case of the prior art document 1, the ground control section describes a method of intercepting an unmanned airplane using an intercepted airplane by detecting a small unmanned airplane, but the content of the ground control section for detecting a small unmanned airplane is not specific, However, there is a problem in that the countermeasures are not available when the intercepted air vehicle can not be operated according to the weather and other variables.

In the case of the preceding documents 2 and 3, a general broadband radio disturbing device is described and it is described that it is possible to disturb the illegal unmanned airplane. However, there is no description about the detection means, and in particular, There is a problem in the technology for disabling the threat by the unmanned aerial vehicle because the satellite navigation disturbance countermeasures against the unmanned aerial vehicle that does not have satellite navigation flight are not specifically mentioned.

In the case of the prior art document 4, a system for detecting a flying object by thermal image sensing is described. In general, although it is difficult to detect a moving object by an image sensor due to limited view of the image sensor, There is no description of a specific method of detecting a flying object and the position of the detected flying object is measured by using a plurality of thermal image sensors. However, since there is no method of measuring the distance of the air object observed by an individual thermal image sensor Even if a plurality of detectors are used, the position can not be confirmed by the triangulation method, and fundamentally only the contents of the detection means are described, so that means for responding to the corresponding flight after detection is not proposed.

In the case of the preceding document 5, the unmanned aerial vehicle approaching and blocking an unauthorized unmanned aerial vehicle is described and a blocking system using the unmanned air vehicle is described. However, the detection means is not presented, and only the corresponding unmanned aerial vehicle using the net is described.

Accordingly, there is a need for a system and an operation that can actually perform preliminary detection, threat identification, and neutralization of a small-sized vehicle by providing a detection method and a countermeasure method integrally.

1. Korean Patent No. 10-1436989 (Registration date: 2014. 08. 27) 2. Korean Registered Patent No. 10-1551826 (Registered on Feb. 29, 2013) 3. Korean Patent No. 10-1572489 (Registration date: Nov. 23, 2015) 4. Korean Patent Publication No. 10-2016-0070384 (Published Date: June 06, 2016) 5. Korean Patent Publication No. 10-2017-0079782 (Open date: Jul. 10, 2017)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a method and apparatus for detecting an approach of a small unmanned aerial vehicle in advance, identifying a threat, And to provide a system that is most suitable for a system equipped with the system.

In order to achieve the above object, the present invention provides a detection interceptor for detecting and intercepting the small unmanned aerial vehicle; An operation control unit for inputting a signal of the detection interceptor to display the position and information of the air vehicle, and for controlling the detection interceptor; And a corresponding unmanned aerial vehicle operation unit for operating a corresponding unmanned air vehicle as a countermeasure against the air vehicle.

As a detailed configuration of the present invention, the detection interceptor may include a radar device as a means for detecting approach of a small unmanned aerial vehicle in advance; An unmanned aerial vehicle identification information receiving unit for receiving effective identification information and positional information of the air vehicle; A day / night optical sensor for visually confirming whether or not the aircraft is threatened; An unmanned aerial vehicle control signal position identification unit for receiving the control signal of the air vehicle and confirming its position; A radio wave disturbance signal generator for interrupting and disabling the object flight of the unmanned aerial vehicle; An unmanned aerial vehicle interceptor for physically intercepting the air vehicle; And a linking and data processing unit for exchanging detection information and a control command with the operation control unit and processing data of the detection unit.

In an exemplary embodiment of the present invention, the operation control unit may include an operation control processing unit for transmitting and receiving control target information and detection target information to and from a detection interception processing unit, and processing detection target information; And an operation status display unit for displaying detection target information and operation control status of the unmanned aerial vehicle.

In the detailed configuration of the present invention, the corresponding unmanned aerial vehicle operation unit may include a corresponding unmanned aerial vehicle ground control unit that controls operation of the corresponding unmanned aerial vehicle on the ground; A wireless communication processing unit for performing communication with the corresponding unmanned aerial vehicle; And a corresponding unmanned air vehicle.

As a detailed configuration of the present invention, the radar device of the detection interceptor includes a three-dimensional radar for electronically forming and operating an antenna beam in a three-dimensional space so as to detect a small non-metallic air vehicle at a long distance, Information is generated.

In the detailed construction of the present invention, the unmanned aerial vehicle identification information receiving unit of the detection interceptor may receive the airwave signal transmitted from the unmanned air vehicle to identify the identification information and the position information of the corresponding air vehicle, And a device capable of receiving a radio wave signal from the state information transmitter. The transmitter may include an ADS-B transponder, a flight radio communication device, and the like, and it is obvious that the transmitter may include means for receiving identification information of other unmanned aerial vehicles according to the idea of the present invention.

As a detailed configuration of the present invention, the daytime and nighttime optical sensors of the detection interceptor include a CCTV and a thermal imaging camera for identifying images of day and night, as means for visually identifying images of the detected unmanned aerial vehicle and identifying threats .

In the detailed construction of the present invention, the unmannurized vehicle control signal position identifying unit of the detection interceptor may be a means for identifying the position of the control signal by a method of triangulation after receiving a control signal for wirelessly controlling the unmanned air vehicle, And a radio signal receiver.

In the detailed construction of the present invention, the radio disturbance signal generator of the detection interceptor may include a satellite navigation radio disturbing device as a means for disturbing a GPS signal such as a GPS navigation signal or the radio control signal in order to disable an object flight of the unmanned air vehicle And a control signal propagation disturbing device. The propagation disturbance signal generator may be integrated with the radar device.

As a detailed configuration of the present invention, the unmannurial vehicle interceptor of the detection interceptor includes a means for physically intercepting the unmanned air vehicle directly as a means for finally suppressing the unmanned aerial vehicle. The physical interceptor may include a weapon system such as a laser, a missile, and an air defense system.

In the detailed configuration of the present invention, the interlocking and data processing unit of the interception interception processing unit inputs the detection result of the target information, video, etc. from the subcomponents of the interception interception processing unit, performs necessary processing, and transmits the result to the operation control processing unit. And a control command is inputted from the control processing unit to control the lower constituent elements. In this case, the interlocking and data processing unit is configured in a form that can be installed and operated in an external environment, and performs communication with the operation control processing unit using a predefined interlocking standard format or a format conforming to the international standard. Also, the image obtained from the day / night optical sensor is converted into a network stream and transmitted to the operation control processing unit 121. And a video server function may be provided in the interlocking and data processing unit as necessary.

In the detailed configuration of the present invention, the operation control processing unit of the operation control unit may include a computer server that receives detection information in cooperation with the detection interception processing unit, processes the detection information, and transmits detection information to the detection interception processing unit; An operator console for the operator to operate the system; A DB storage server for storing operational data and images; And a network device.

In the detailed configuration of the present invention, the operation situation city unit of the operation control unit displays the operation result of the unmanned aerial vehicle such as the detection result of the unmanned aerial vehicle, and the operation state of the unmanned air vehicle, And the like. It will be apparent that the operational situation diagram according to the principles of the present invention may have various configurations capable of achieving the object.

In a detailed configuration of the present invention, the corresponding unmanned aerial vehicle ground control unit of the corresponding unmanned aerial vehicle operation unit may be a computer device that processes the operation control information of the corresponding unmanned aerial vehicle as a means for the operator to control operation of the corresponding unmanned aerial vehicle; An operator console for displaying a corresponding unmanned aerial vehicle operation state and inputting a control command; And a network device.

In the detailed configuration of the present invention, the radio communication processing unit of the corresponding unmanned aerial vehicle operation unit may include: a high frequency transceiver for generating and receiving a radio wave signal as radio communication means for controlling the corresponding unmanned air vehicle; And an antenna for transmitting / receiving the radio wave signal to / from the corresponding unmanned aerial vehicle. The wireless communication processing unit may include a commercial mobile communication system such as LTE or a self wireless communication system.

In the detailed configuration of the present invention, the corresponding unmanned air vehicle of the corresponding unmanned aerial vehicle operation unit physically controls the threatening unmanned air vehicle directly or by flying to the position of the steering signal, visually confirms the navigator image of the corresponding position, Wherein the corresponding unmanned aerial vehicle includes an optical sensor capable of confirming a scene image on a scene; A speaker device for warning broadcast; And a means for physically depressing the threat aircraft or the navigator of the aircraft, and is configured in the form of an unmanned helicopter, an unmanned multi-copter, or a vertical takeoff and landing fixed wing unmanned aerial vehicle.

The system configuration according to the present invention is characterized in that it is possible to dynamically combine the constituent parts according to the application field and the need, and accordingly, it is obvious that the actual operating system configurations can be configured in various combinations.

In addition, the system of the present invention is constructed based on an open platform, and can be expanded to include a variety of means such as an ultrasonic sensor and an acoustic sensor as a means for detecting a small unmanned aerial vehicle.

The method for detecting and neutralizing small unmanned aerial vehicles according to the system configuration of the present invention includes a detection step in which a radar detects a small flying object through a three-dimensional search for a frontal azimuthal space; A tracking step of tracking the air vehicle by a radar; Receiving identification information and positional information from the unmanned aerial vehicle to compare with the radar detection information, and identifying a normal flying object; A threat identification step of controlling the day / night optical sensor at the unmanned aerial vehicle position to identify a threat via the corresponding aerial image; A satellite navigation disturbance step for disturbing the satellite navigation flight when the control signal of the unmanned aerial vehicle can not be received; A manipulation signal disturbing step for disturbing the manipulation signal when the manipulation signal of the unmanned air vehicle can be received; A steering position identification step for identifying a position of the steering signal using the steering signal of the unmanned air vehicle; A step of dispatching a corresponding unmanned air vehicle to directly remove the unmanned air vehicle; A controller for dispatching the corresponding unmanned aerial vehicle to the control signal position to warn and directly control the corresponding controller; And a flying object removing step of physically removing the unmanned aerial vehicle as a final means.

Even if the small unmanned aerial vehicle is initially detected at a close range, it is possible to use an appropriate countermeasure appropriate to the situation based on the operation method. It is possible to provide means capable of coping with the occurrence of a threat at a close range.

According to the embodiment of the present invention, an integrated system for detecting and disabling small unmanned aerial vehicles provides an operation method including a detection step, an identification step and an action step, And the system configuration can be effectively provided.

Also, by providing a method of identifying the normal flying object by comparing the detection information obtained through the radar device with the identification information (including the position) obtained through the receiving unit of the unmanned air vehicle identification information, And the like.

In addition, it has both satellite navigation signal disturbance and control signal disturbance. By including corresponding unmanned aerial vehicle and unmanned aerial vehicle interceptor, appropriate response method can be applied according to given situation and step, such as near distance, Means can be provided.

Therefore, by applying the system according to the embodiment of the present invention, it is possible to cope with a serious security threat situation caused by the UAV, and to protect national important facilities such as nuclear power plants from the threat of terrorism by small unmanned aerial vehicles, In case of mobile operation, it is possible to protect important national assets by utilizing military operation support and protecting the important personnel of the country.

1 is a block diagram showing the configuration of a small unmanned aerial vehicle detection and non-operation system according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating a method of operating a small unmanned aerial vehicle detection and disabling system according to an embodiment of the present invention.
3 is a conceptual diagram of an area set for performing a stepwise countermeasure to a small unmanned aerial vehicle according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is directed to a system 100 for detecting and neutralizing a small unmanned aerial vehicle 200. However, the system according to the present invention can detect all the air vehicles having a size larger than that of the small unmanned aerial vehicle 200. [

As shown in FIGS. 1, 2, and 3, in the detection and identification step, the radar 111 searches for the vicinity of the installed position and detects that the small unmanned aerial vehicle 200 appears in the pre-detection area R100 (Step S11), the detection result is transmitted to the operation control processing unit 121 through the interlocking and data processing unit 119 as target information, (S12). At this time, the interlocking and data processing unit 119 generates and transmits the detection result target information acquired from the radar 111 in a predefined format The operator can set and control the optimal detection area in consideration of the surrounding environment in the operator console of the operation control processing unit 121. [

When the unmanned aerial vehicle identification information receiving unit 112 is configured in the system, the air vehicle identification step can be performed. The air vehicle identification information and the position information are received from the unmanned air vehicle 200 (S20) (S21). At this time, the format for information transmission also follows the case of the radar target information transmission, and the same applies to all information transmission. Operation situation The city department collectively displays map, wake, image and various operation information.

Herein, the unmanned airplane identification information may be a signal to be received by the unmanned aerial vehicle 200 when the ADF-B transponder is installed, The unmanned air vehicle 200 receives a radio wave signal responding to the identification information request signal transmitted through the interrogator in a manner that the unmanned air vehicle 200 effectively responds to the identification information request signal transmitted through the interrogator, And the location of the unmanned air vehicle 200 can be confirmed by using the location information included in the signal. In the above case, if valid identification information can not be received from the unmanned aerial vehicle 200, the unmanned aerial vehicle 200 is regarded as an illegal or suspicious air vehicle, and the step of discriminating the threat is proceeded. (S31)

The operator visually compares the wake of the radar target displayed on the operation status display unit 123 and the air vehicle identification information and the position thereof automatically by the operator's visual comparison or operation control processing unit 121 to check whether they match or not. If effective identification information such as unique ID and mission information is received from the unmanned air vehicle 200 through the above process, it is possible to confirm that the detected radar target is a normal air vehicle (S25) . Of course, if the unmanned aerial vehicle 200 continues to approach the previously set flight and inaccessible zone R200, the process proceeds to step S30.

The interlocking and data processing unit 119 converts the image obtained from the daytime and nighttime optical sensor 113 into a network stream and transmits the same to the operation control processing unit 121. And a video server function can be provided in the interlocking and data processing unit as necessary. At this time, the operator can check the image displayed on the operator console of the operation control processing unit 121 or the image displayed on the operation status display unit 123. Accordingly, the threat identification method according to the present invention is performed by visually confirming an installation or the like with a daytime or a thermal image of the unmanned aerial vehicle using the long-distance day / night optical sensor 113. (S31) At this time, 113) can be automatically controlled to the position of the unmanned aerial vehicle identified by the radar or the identification information.

Also, when the threat is difficult to be identified using the image of the day / night optical sensor 113, it is possible to solve the problem by dispatching the corresponding unmanned air vehicle 133 to the position of the unmanned air vehicle 200 to secure a proximity image. This step is not shown in the flow chart of FIG. 2, but it is apparent as an embodiment of a scenario that can be operated by the system of the present invention.

If it is proved to be a threat in the threat identification step, the action step for each situation will be performed. (S35) Of course, even if the threat is not proved, if the unmanned aerial vehicle 200 continues to approach the flight and approach prohibited area R200,

In order to proceed with the action step, the unmanned air vehicle control signal position identification unit 115 searches for and receives the control signal 300 of the unmanned air vehicle 200 in step S40, (S41) At this time, the unmanned airplane control signal position identifying unit 115 includes a plurality of receivers for checking the position of the steering signal, and the size, time difference, and the like of the corresponding steering signals received by the respective receivers The triangulation method can be used.

If the control signal is not received, the navigation signal disturbance is performed using the radio disturbance signal generator 116 to prevent the navigation of the unmanned air vehicle in the navigation system disturbance step (S50). At this time, The satellite navigation signal may include GPS, GNSS, Galileo, and the like.

When the steering signal is received but the position of the steering signal 300 is not confirmed, the steering signal disturbance step is performed using the signal disturbance signal generation unit 116 to prevent the approach flight of the unmanned aerial vehicle . (S60)

If the position of the control signal 300 is confirmed (S41), the corresponding unmanned aerial vehicle 133 is dispatched to the corresponding position in the navigator step (S70), the operator's image is visually confirmed, and a warning or physical action is performed (S71) To this end, the corresponding unmanned air vehicle 133 is equipped with an optical sensor equipped with a CCTV, an infrared camera, etc., and a speaker device for warning broadcasting and means for physical measures can be installed. At this time, the corresponding unmanned air vehicle surface control unit 131 and the wireless communication processing unit 132 are used to dispatch and operate the corresponding unmanned air vehicle 133. Of course, in the case where the situation is not terminated at this stage, the control signal disturbing step can be performed (S60)

If the situation is not terminated despite the action in each of the above steps and the unmanned air vehicle 200 approaches the intercepting area R300 in step S80, And sends the corresponding unmanned flight vehicle 133 to the unmanned air vehicle 200 in step S81.

At this time, if the corresponding unmanned air vehicle 133 fails to suppress the unmanned air vehicle 200 (S83), the approach is confirmed within the intercept distance (S85). Finally, the unmanned air vehicle interceptor 117 is used (S90) A means such as a laser, a missile, an air defense system and the like may be applied to the unmanned aerial vehicle interceptor, and it can be specifically configured in the embodiment of the present invention.

Each of the above-described action steps may be performed sequentially, or the steps appropriate to individual situations may be performed immediately, as one embodiment of operating the system of the present invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined by the appended claims. Which is obvious to those of ordinary skill in the art.

100: Small unmanned aerial vehicle detection and disarming system
110: detection interception processing unit 120 Operation control unit
130: Corresponding unmanned aerial vehicle operation part
111: Radar 112: Unmanned aerial vehicle identification information receiver
113: Day / Night optical sensor 115: Unmanned aerial vehicle control signal position identification unit
116: radio wave disturbance signal generation unit 117: unmanned aerial vehicle interception unit
119: Interlocking and Data Processing Unit
121: Operation control processing section 123: Operation situation city department
131: Corresponding unmanned aerial vehicle ground control unit 132: Wireless communication processing unit
133: Unmanned aerial vehicle
200: Small unmanned aerial vehicle 300: Small unmanned aerial vehicle control device
S1x: Detection and tracking step S2x: Flight identification step
S3x: Threat identification step S4x: Steering position identification step
S5x: Satellite navigation disturbance step S6x: Steering signal disturbance step
S7x: Operator Action Phase S8x: Operator Action Phase
S9x: Flight removal stage
R100: Proactive detection area R200: Flying and approach prohibited area
R300: Intercept area

Claims (3)

A system (100) for detecting and neutralizing a small unmanned aerial vehicle,
A detection interceptor 110 for detecting and intercepting small unmanned aerial vehicles;
An operation control unit 120 for processing and displaying status information for detecting and disabling the small unmanned aerial vehicle and controlling the detection interceptor;
And a corresponding unmanned aerial vehicle operation unit 130 for aerial depressurizing the small unmanned aerial vehicle so as to collectively operate detection and disabling of a small air vehicle. A system (100) for detecting and neutralizing the small unmanned aerial vehicle,
A detection tracking step (S1x) in which a small unmanned aerial vehicle is detected and tracked by a radar and the wake is marked and observed;
A flight object identification step (S2x) for receiving identification information and positional information from the small unmanned aerial vehicle to compare with the radar detection information and identifying whether the aircraft is a normal airborne object;
A threat identification step (S3x) for controlling the day / night optical sensor at the small unmanned aerial vehicle location and confirming the threat through the corresponding aerial image;
A steering position identification step S4x for identifying the position of the steering signal using the steering signal of the unmanned air vehicle;
A satellite navigation disturbance step (S5x) for disturbing the satellite navigation flight when the control signal of the unmanned aerial vehicle can not be received;
A manipulation signal disturbing step (S6x) for disturbing the manipulation signal when the manipulation signal of the unmanned air vehicle can be received;
(S7x) for dispatching the corresponding unmanned aerial vehicle to the control signal position and warning and directly controlling the corresponding pilot;
(S8x) for directly removing the small unmanned aerial vehicle by dispatching a corresponding unmanned air vehicle;
(S9x) for physically removing the small unmanned aerial vehicle (S9x) as a final means for the operation of the small unmanned aerial vehicle detection and disarming system. In the detection interceptor 110 of the system 100 for detecting and neutralizing the small unmanned aerial vehicle,
A radar device 111 capable of electronically detecting an antenna beam in a three-dimensional space to detect and track a small unmanned aerial vehicle;
An unmanned aerial vehicle identification information receiving unit 112 for receiving identification information and positional information from the small unmanned aerial vehicle and obtaining information for confirming whether a normal air vehicle is present;
A long distance day / night optical sensor 113 for confirming the threat of the small unmanned aerial vehicle;
A unmanned aerial vehicle control signal position identifying unit 115 for receiving the control signal of the small unmanned aerial vehicle and confirming the position of the steering apparatus;
A radio disturbance signal generation unit (116) for generating a radio disturbance signal for the navigation of the small unmanned aerial vehicle and the control signal disturbance;
A unmannurial vehicle interceptor 117 for physically removing the small unmanned aerial vehicle at a final stage;
A interlocking and data processing unit 119 for processing detection information and images of the small unmanned aerial vehicle and transmitting the processed detection information and images to the operation control unit 120 and receiving a control signal from the operation control unit 120 to control the detection interception processing unit Detection interception processing system.

Images