A method for single radar to guide multiple photoelectric countermeasure equipment to intercept targets

Abstract

The application discloses a method for single radar guiding multiple sets of photoelectric countermeasure equipment to intercept targets, and belongs to the field of counter-low-altitude aircrafts. The method comprises the following steps: analyzing detection data of a radar to generate target data of each target to be intercepted; transmitting the target data to photoelectric countermeasure equipment in a defense area; when there are multiple targets to be intercepted, transmitting target data of different targets to be intercepted to different photoelectric countermeasure equipment, and transmitting target data of the same target to be intercepted to the same photoelectric countermeasure equipment; and the photoelectric countermeasure equipment intercepts targets according to the target data. The application maximizes the use efficiency of the radar, and greatly reduces the cost of a system defense system of multiple sets of photoelectric countermeasure equipment.

Description

Technical Field

[0001] This invention belongs to the field of anti-low-altitude aircraft, and in particular relates to a method for a single radar to guide multiple sets of optoelectronic countermeasures equipment to intercept targets. Background Technology

[0002] In recent years, with the continuous development of drone technology, the entire drone industry has undergone rapid changes and achieved unprecedented growth, leading to the widespread adoption and application of drones in various fields. In recent years, in order to protect the safety of relevant personnel or facilities and ensure the normal and safe operation of related work, the defense and countermeasures against low-altitude aircraft have become particularly important, and the demand for such defenses will continue to increase over time.

[0003] However, given the current situation both domestically and internationally, although many enterprises and research institutions have participated in research on the defense and countermeasures against low-altitude aircraft, numerous methods and means have emerged for countering them. These countermeasures can be broadly categorized into two types: soft-kill jamming and hard-kill shooting. Different countermeasures can be selected for different application scenarios.

[0004] There are two main methods of hard-kill interception: traditional artillery destruction and laser weapon countermeasures. Traditional artillery interception of drones has many drawbacks, such as high cost and low success rate. Therefore, it is primarily used for intercepting low-altitude aircraft. Laser weapon countermeasures, due to their low cost and high interception rate, have become one of the most popular anti-drone methods. However, laser countermeasures also have some disadvantages that need optimization. Because laser weapons can only intercept one target at a time, their interception efficiency drops significantly when drone swarms appear. Therefore, most current laser weapons for countering drone swarms employ a networked, coordinated approach. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method for a single radar to guide multiple sets of optoelectronic countermeasures devices to intercept targets.

[0006] The objective of this invention is achieved through the following technical solution: a method for a single radar to guide multiple sets of optoelectronic countermeasures equipment to intercept a target, comprising:

[0007] Analyze the radar's detection data to generate target data for each target to be intercepted;

[0008] The target data is transmitted to the optoelectronic countermeasures equipment in the defense zone. When there are multiple targets to be intercepted, the target data of different targets to be intercepted is transmitted to different optoelectronic countermeasures equipment, and the target data of the same target to be intercepted is transmitted to the same optoelectronic countermeasures equipment.

[0009] The photoelectric countermeasures device intercepts the target based on the target data.

[0010] Furthermore, transmitting the target data to the optoelectronic countermeasures equipment in the defended area includes:

[0011] Acquire defense zone information, which includes the location information of the photoelectric countermeasures equipment deployment, the detection range of the photoelectric countermeasures equipment, the interception range of the photoelectric countermeasures equipment, and the location information of the preset target;

[0012] When there is only one target to be intercepted, determine the priority value of each optoelectronic countermeasure device in the defense zone;

[0013] The target data of the target to be intercepted is transmitted to the photoelectric countermeasure device with the highest priority value;

[0014] The formula for calculating the priority value of photoelectric countermeasures equipment is as follows:

[0015]

[0016] In the formula, K1 represents the priority value of the photoelectric countermeasures device; A represents whether the target to be intercepted will enter the interception range of the photoelectric countermeasures device. If it does, A is 1; otherwise, A is 0; B represents the interception range of the photoelectric countermeasures device; α1 represents the relative azimuth angle between the target to be intercepted and the photoelectric countermeasures device; and T1 represents the time it takes for the target to reach the interception range of the photoelectric countermeasures device.

[0017] Furthermore, transmitting the target data to the optoelectronic countermeasures equipment in the defended area includes:

[0018] Acquire defense zone information, which includes the location information of the photoelectric countermeasures equipment deployment, the detection range of the photoelectric countermeasures equipment, the interception range of the photoelectric countermeasures equipment, and the location information of the preset target;

[0019] When there are multiple targets to be intercepted, determine the target threat level of each target;

[0020] Based on the target threat level, the corresponding optoelectronic countermeasures device is determined for the target to be intercepted, and the target data is transmitted to the corresponding optoelectronic countermeasures device;

[0021] When the target to be intercepted is outside the field of view of the electro-optical detection system, the formula for calculating the target threat level is as follows:

[0022]

[0023] In the formula, K2 represents the target threat level when the target to be intercepted is outside the field of view of the photoelectric detection, S represents the cross-sectional area of ​​the target to be intercepted, H represents the flight altitude of the target to be intercepted, T2 represents the time it takes for the target to be intercepted to reach the defense zone, D represents the relative distance between the target to be intercepted and the defense zone, and α2 represents the relative azimuth angle between the target to be intercepted and the preset target.

[0024] Furthermore, when calculating the target threat level, if there are multiple preset targets, the relative azimuth angles between the target to be intercepted and each preset target are calculated separately, and the smallest relative azimuth angle is determined as the value of α2.

[0025] Furthermore, when the target to be intercepted is within the field of view of the photoelectric detection system, the formula for calculating the target threat level is as follows:

[0026]

[0027] In the formula, K3 represents the target threat level when the target to be intercepted is within the field of view of the electro-optical detection system, S represents the cross-sectional area of ​​the target to be intercepted, H represents the flight altitude of the target to be intercepted, T2 represents the time it takes for the target to be intercepted to reach the defense zone, D represents the relative distance between the target to be intercepted and the defense zone, α2 represents the relative azimuth angle between the target to be intercepted and the preset target, E represents whether the target to be intercepted is carrying weapons, and F represents the type of target to be intercepted.

[0028] Furthermore, based on the target threat level, the corresponding optoelectronic countermeasures equipment is determined for the target to be intercepted, including:

[0029] The system assigns electro-optical countermeasures devices to all targets to be intercepted. If two or more targets to be intercepted are assigned to the same electro-optical countermeasures device, the device is assigned to the target with the highest threat level, and the device is reassigned to the remaining targets.

[0030] Furthermore, the method also includes: configuring a communication connection between the radar and the photoelectric countermeasures device, wherein each photoelectric countermeasures device is configured with an independent IP address and port number.

[0031] Furthermore, the method also includes: if the target to be intercepted flies to the preset area, the target threat level of the target to be intercepted is determined to be the highest, and the target data of the target to be intercepted is transmitted to all photoelectric countermeasures devices in the defense zone.

[0032] Furthermore, based on the UDP communication mechanism, the target data is transmitted to the corresponding photoelectric countermeasure device in JSON format.

[0033] The beneficial effects of this invention are:

[0034] (1) The present invention uses a single radar to guide multiple sets of optoelectronic countermeasures equipment to intercept targets, thereby maximizing the efficiency of radar use, greatly reducing the cost of the system defense system with multiple sets of optoelectronic countermeasures equipment, and also reducing the operational difficulty for combat commanders and equipment operators.

[0035] (2) Compared with the current fixed allocation and guidance mechanism of radar, the present invention provides a variety of allocation mechanisms for photoelectric countermeasures devices, which are more flexible and efficient, and also make the cooperation between photoelectric countermeasures devices and radar more close and complete.

[0036] (3) The present invention transmits target data of different targets to different photoelectric countermeasure devices and transmits target data of the same target to the same photoelectric countermeasure device. This can efficiently and quickly complete the interception of the target by each photoelectric countermeasure device and effectively prevent the situation of different photoelectric countermeasure devices intercepting the same target, which reduces the efficiency of combat. Attached Figure Description

[0037] Figure 1 This is a flowchart of the method for a single radar to guide multiple sets of optoelectronic countermeasures devices to intercept a target in this invention. Detailed Implementation

[0038] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] See Figure 1 This invention provides a method for a single radar to guide multiple sets of optoelectronic countermeasures devices to intercept a target:

[0040] like Figure 1 As shown, a method for a single radar to guide multiple sets of optoelectronic countermeasures equipment to intercept a target includes steps S100 to S300.

[0041] Step S100. Analyze the radar detection data and generate target data for each target to be intercepted.

[0042] Specifically, radar is used to detect targets, and then the radar detection data is analyzed to generate target data for each target to be intercepted. The target data includes the target's position, flight altitude, flight speed, and flight direction.

[0043] Step S200. Transmit the target data to the photoelectric countermeasures device in the defense zone. When there are multiple targets to be intercepted, transmit the target data of different targets to different photoelectric countermeasures devices, and transmit the target data of the same target to the same photoelectric countermeasures device.

[0044] By transmitting target data from different targets to different optoelectronic countermeasure devices, and transmitting target data from the same target to the same optoelectronic countermeasure device, the interception of targets by each optoelectronic countermeasure device can be completed efficiently and quickly, and the situation of different optoelectronic countermeasure devices intercepting the same target, which reduces the efficiency of operations, can be effectively prevented.

[0045] In some embodiments, transmitting target data to an optoelectronic countermeasure device in a defense zone includes: acquiring defense zone information, which includes the deployment location information of the optoelectronic countermeasure device, the detection range of the optoelectronic countermeasure device, the interception range of the optoelectronic countermeasure device, and the location information of a preset target, including longitude, latitude, and altitude; when there is only one target to be intercepted, determining the priority value of each optoelectronic countermeasure device in the defense zone; and transmitting the target data of the target to be intercepted to the optoelectronic countermeasure device with the highest priority value. The formula for calculating the priority value of the optoelectronic countermeasure device is as follows:

[0046]

[0047] In the formula, K1 represents the priority value of the photoelectric countermeasures device; A represents whether the target to be intercepted will enter the interception range of the photoelectric countermeasures device. If it does, A is 1; otherwise, A is 0; B represents the interception range of the photoelectric countermeasures device; α1 represents the relative azimuth angle between the target to be intercepted and the photoelectric countermeasures device; and T1 represents the time it takes for the target to reach the interception range of the photoelectric countermeasures device.

[0048] When calculating the priority value of a certain photoelectric countermeasure device, the target data is used to determine whether the target to be intercepted will be within the interception range of the photoelectric countermeasure device. If so, A is set to 1; otherwise, A is set to 0.

[0049] When there is only one target to be intercepted, the photoelectric countermeasure device with the highest priority value should be used for interception, which can intercept the target faster and more accurately.

[0050] In some embodiments, transmitting target data to an optoelectronic countermeasure device within a defense zone includes: acquiring defense zone information, which includes the deployment location information of the optoelectronic countermeasure device, the detection range of the optoelectronic countermeasure device, the interception range of the optoelectronic countermeasure device, and the location information of a preset target; when multiple targets to be intercepted exist, determining the target threat level of each target; determining the corresponding optoelectronic countermeasure device for each target based on its target threat level, and transmitting the target data to the corresponding optoelectronic countermeasure device. Wherein, when the target to be intercepted is located outside the optoelectronic detection field of view, the formula for calculating the target threat level is:

[0051]

[0052] In the formula, K2 represents the target threat level when the target to be intercepted is outside the field of view of the photoelectric detection, S represents the cross-sectional area of ​​the target to be intercepted, H represents the flight altitude of the target to be intercepted, T2 represents the time it takes for the target to be intercepted to reach the defense zone, D represents the relative distance between the target to be intercepted and the defense zone, and α2 represents the relative azimuth angle between the target to be intercepted and the preset target.

[0053] The preset target is generally a key target for defense of the defense zone. The relative azimuth angle between the target to be intercepted and the preset target is the size of the flight angle of the target to be intercepted and the straight-line angle of the preset target.

[0054] In some embodiments, after determining the target threat level of the target to be intercepted, corresponding photoelectric countermeasure devices are determined for each target to be intercepted in descending order of target threat level.

[0055] In some embodiments, after determining the target threat level of the target to be intercepted, photoelectric countermeasures devices are assigned to all targets to be intercepted in parallel. If two or more targets to be intercepted are assigned to the same photoelectric countermeasures device, the photoelectric countermeasures device is assigned to the target with the highest target threat level among the aforementioned targets to be intercepted, and the corresponding photoelectric countermeasures devices are re-determined for the remaining targets to be intercepted, thereby improving the efficiency of determining photoelectric countermeasures devices.

[0056] In some embodiments, when calculating the target threat level, if there are multiple preset targets, the relative azimuth angle between the target to be intercepted and each preset target is calculated respectively, and the smallest relative azimuth angle is determined as the value of α2, thereby increasing the target threat level of the target to be intercepted and more effectively protecting the preset targets.

[0057] In some embodiments, when the target to be intercepted is within the field of view of the photoelectric detection system, the formula for calculating the target threat level is:

[0058]

[0059] In the formula, K3 represents the target threat level when the target to be intercepted is within the field of view of the electro-optical detection system, S represents the cross-sectional area of ​​the target to be intercepted, H represents the flight altitude of the target to be intercepted, T2 represents the time it takes for the target to be intercepted to reach the defense zone, D represents the relative distance between the target to be intercepted and the defense zone, α2 represents the relative azimuth angle between the target to be intercepted and the preset target, E represents whether the target to be intercepted is carrying weapons, and F represents the type of target to be intercepted.

[0060] The value of E can be determined according to the actual situation. The value of E is greater when the target to be intercepted is armed than when the target to be intercepted is unarmed.

[0061] Generally, the value of F is determined in advance based on the type of target to be intercepted, such as setting the corresponding value in advance based on whether the target to be intercepted is an FPV, quadcopter, delta wing, etc.

[0062] When the target to be intercepted is far away (outside the electro-optical detection field of view), only radar can detect its information. When the target is within the electro-optical detection field of view, the electro-optical countermeasures equipment can also detect it. Compared to radar detection, the electro-optical countermeasures equipment can use electro-optical vision to confirm that the target is armed, for example, by using algorithms to determine whether it is armed based on the characteristics of the target's munitions. Since many current UAV tactics involve wingmen accompanying attack aircraft, the wingmen, being faster and unarmed, act as reconnaissance cover, drawing radar fire and providing cover for the attack aircraft hidden among them, thus improving combat effectiveness. Therefore, in this embodiment, assessing the target's threat level by using the electro-optical countermeasures equipment to determine whether the target is armed when it is within the electro-optical detection field of view allows for a more accurate assessment of the target's threat level.

[0063] Current radar systems typically determine whether a drone is a drone, but cannot pinpoint its specific type, such as FPV, quadcopter, or delta-wing. However, these different types of drones pose varying degrees of threat. In practice, many cases involve high-speed FPV drones initially flying slowly, concealing themselves among a swarm of quadcopter reconnaissance and photography drones to evade radar detection. Once they reach a certain distance, they suddenly accelerate, breaking away from the swarm and directly attacking defensive units, which is extremely dangerous. Therefore, this embodiment utilizes an optoelectronic countermeasure device to assess the target's type when it is within the optoelectronic detection field of view, enabling a more accurate assessment of its threat level.

[0064] Step S300. The photoelectric countermeasure device intercepts the target based on the target data.

[0065] In some embodiments, the method further includes: configuring a communication connection between the radar and the photoelectric countermeasures device, wherein each photoelectric countermeasures device is configured with an independent IP address and port number to ensure that when there are multiple targets to be intercepted, the target data of different targets to be intercepted can be transmitted to different photoelectric countermeasures devices, and the target data of the same target to be intercepted can be transmitted to the same photoelectric countermeasures device.

[0066] In some embodiments, the method further includes: if the target to be intercepted flies to a preset area, the target threat level of the target to be intercepted is determined to be the highest, and the target data of the target to be intercepted is transmitted to all photoelectric countermeasure devices in the defense zone.

[0067] For example, if a target to be intercepted breaks through the defense zone and enters the core defense area, the target data of the target to be intercepted is automatically sent to all photoelectric countermeasures devices. The photoelectric countermeasures devices then switch their fire and concentrate their efforts to eliminate the target to be intercepted as quickly as possible, and then continue to intercept the target that was half-attacked.

[0068] In some embodiments, target data is transmitted to the corresponding photoelectric countermeasure device in JSON format based on the UDP communication mechanism. The transmission of target data is continuous and automatic; once the photoelectric countermeasure device is identified, the relevant data detected by the radar is processed and automatically sent to the corresponding photoelectric countermeasure device.

[0069] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A method for using a single radar to guide multiple sets of optoelectronic countermeasures equipment to intercept a target, characterized in that, include: Analyze the radar's detection data to generate target data for each target to be intercepted; The target data is transmitted to the optoelectronic countermeasures equipment in the defense zone. When there are multiple targets to be intercepted, the target data of different targets to be intercepted is transmitted to different optoelectronic countermeasures equipment, and the target data of the same target to be intercepted is transmitted to the same optoelectronic countermeasures equipment. The photoelectric countermeasures device intercepts the target based on the target data; Transmitting target data to optoelectronic countermeasures equipment within the defended zone includes: Acquire defense zone information, which includes the location information of the photoelectric countermeasures equipment deployment, the detection range of the photoelectric countermeasures equipment, the interception range of the photoelectric countermeasures equipment, and the location information of the preset target; When there is only one target to be intercepted, determine the priority value of each optoelectronic countermeasure device in the defense zone; The target data of the target to be intercepted is transmitted to the photoelectric countermeasure device with the highest priority value; The formula for calculating the priority value of photoelectric countermeasures equipment is as follows: ； In the formula, K1 represents the priority value of the photoelectric countermeasures device; A represents whether the target to be intercepted will enter the interception range of the photoelectric countermeasures device. If it does, A is 1; otherwise, A is 0; B represents the interception range of the photoelectric countermeasures device; α1 represents the relative azimuth angle between the target to be intercepted and the photoelectric countermeasures device; and T1 represents the time it takes for the target to reach the interception range of the photoelectric countermeasures device.

2. The method for intercepting a target by guiding multiple sets of optoelectronic countermeasures equipment with a single radar according to claim 1, characterized in that, Transmitting target data to optoelectronic countermeasures equipment within the defended zone includes: Acquire defense zone information, which includes the location information of the photoelectric countermeasures equipment deployment, the detection range of the photoelectric countermeasures equipment, the interception range of the photoelectric countermeasures equipment, and the location information of the preset target; When there are multiple targets to be intercepted, determine the target threat level of each target; Based on the target threat level, the corresponding optoelectronic countermeasures device is determined for the target to be intercepted, and the target data is transmitted to the corresponding optoelectronic countermeasures device; When the target to be intercepted is outside the field of view of the electro-optical detection system, the formula for calculating the target threat level is as follows: ； In the formula, K2 represents the target threat level when the target to be intercepted is outside the field of view of the photoelectric detection, S represents the cross-sectional area of ​​the target to be intercepted, H represents the flight altitude of the target to be intercepted, T2 represents the time it takes for the target to be intercepted to reach the defense zone, D represents the relative distance between the target to be intercepted and the defense zone, and α2 represents the relative azimuth angle between the target to be intercepted and the preset target.

3. The method for intercepting a target by guiding multiple sets of optoelectronic countermeasures equipment with a single radar according to claim 2, characterized in that, When calculating the threat level of a target, if there are multiple preset targets, the relative azimuth angle between the target to be intercepted and each preset target is calculated separately, and the smallest relative azimuth angle is determined as the value of α2.

4. The method for intercepting a target by guiding multiple sets of optoelectronic countermeasures equipment with a single radar according to claim 2, characterized in that, When the target to be intercepted is within the field of view of the electro-optical detection system, the formula for calculating the target threat level is: ； In the formula, K3 represents the target threat level when the target to be intercepted is within the field of view of the electro-optical detection system, S represents the cross-sectional area of ​​the target to be intercepted, H represents the flight altitude of the target to be intercepted, T2 represents the time it takes for the target to be intercepted to reach the defense zone, D represents the relative distance between the target to be intercepted and the defense zone, α2 represents the relative azimuth angle between the target to be intercepted and the preset target, and E represents whether the target to be intercepted is carrying weapons. F indicates the type of target to be intercepted.

5. The method for intercepting a target by guiding multiple sets of optoelectronic countermeasures equipment with a single radar according to claim 2, characterized in that, Based on the target threat level, the corresponding electro-optical countermeasures equipment is determined for the target to be intercepted, including: The system assigns electro-optical countermeasures devices to all targets to be intercepted. If two or more targets to be intercepted are assigned to the same electro-optical countermeasures device, the device is assigned to the target with the highest threat level, and the device is reassigned to the remaining targets.

6. The method for intercepting a target by guiding multiple sets of optoelectronic countermeasures equipment with a single radar according to claim 1, characterized in that, The method further includes: configuring a communication connection between the radar and the photoelectric countermeasures device, wherein each photoelectric countermeasures device is configured with an independent IP address and port number.

7. The method for intercepting a target by guiding multiple sets of optoelectronic countermeasures equipment with a single radar according to claim 1, characterized in that, The method further includes: if the target to be intercepted flies to the preset area, the target threat level of the target to be intercepted is determined to be the highest, and the target data of the target to be intercepted is transmitted to all photoelectric countermeasures devices in the defense zone.

8. A method for intercepting a target by guiding multiple sets of optoelectronic countermeasures equipment with a single radar according to claim 1, characterized in that, Based on the UDP communication mechanism, the target data is transmitted to the corresponding photoelectric countermeasure device in JSON format.

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