Low-altitude defense equipment and defense method

Abstract

The invention relates to the technical field of low-altitude defense, in particular to low-altitude defense equipment and a defense method.The low-altitude defense equipment comprises a base, an oil tank mounting mechanism is rotatably connected into the base, a take-up seat is fixedly connected to the base, a water tank is fixedly connected to the take-up seat, and a mounting seat is fixedly connected to the water tank; a fixed seat is arranged on the oil tank mounting mechanism, a regional defense mechanism is rotatably connected to the fixed seat, a fixed-point defense mechanism is mounted on the regional defense mechanism, and low-altitude defense monitoring equipment is fixedly mounted on the rotating seat. When the low-altitude defense equipment is installed and used on the oil tank truck, rapid butt joint and fixing can be achieved, additional punching or welding is not needed, moving deployment and temporary installation of the equipment are facilitated, the low-altitude defense equipment can be stably, safely and rapidly installed on the oil tank truck for use, and the maneuverability, reliability and defense effect of the equipment are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low-altitude defense, and in particular to a low-altitude defense device and method. BACKGROUND

[0002] Low-altitude defense devices are a class of devices specifically designed to protect specific areas or critical infrastructure from threats posed by low-altitude flying vehicles such as drones, low-altitude small aircraft, birds, etc. With the popularization of drone technology, such devices have become an important security protection tool for many sensitive areas such as airports, military bases, important facilities, etc.

[0003] The prior art document with publication number CN106452658B provides a low-altitude defense device, which takes photoelectric detection, target tracking and radio frequency interference as the core, and the entire device adopts modular design, the detection part and the interference part can be deployed and worked separately, directional antennas are used to reduce or avoid generating incidental interference.

[0004] The prior art is used by being directly placed in the required position, but when it is used on an oil tank truck, the low-altitude defense device can protect the oil tank truck from attacks by low-altitude flying vehicles such as drones and micro aircraft when transporting oil or performing other high-risk operations, especially on highly sensitive areas or transportation routes. Due to the lack of installation technology suitable for oil tank trucks in the prior art, the special structure and dynamic characteristics of the oil tank truck may cause the device to be unstable and susceptible to vibration or external environment, thereby affecting the performance of the device. At the same time, the technology achieves the driving defense of the drone through communication interference, and if the drone has strong anti-interference capability, the existing radio frequency interference method may not be able to effectively interfere with its communication or navigation system, and the defense effect may be limited, especially when facing high-tech drones.

[0005] In summary, in the prior art, there is a lack of installation structure suitable for low-altitude defense devices and oil tank trucks, and diversified drone driving defense technology. SUMMARY

[0006] The purpose of the present application is to solve the shortcomings in the background art, and a low-altitude defense device and method are proposed.

[0007] In order to achieve the above object, the technical scheme adopted by the present application is: a low-altitude defense equipment, comprising a base, an oil tank mounting mechanism is rotatably connected in the base, a take-up seat is fixedly connected on the base, a water tank is fixedly connected on the take-up seat, a mounting seat is fixedly connected on the water tank, a rotating seat is rotatably connected on the mounting seat, a fixed seat is fixedly installed on the rotating seat, a regional defense mechanism is rotatably connected on the fixed seat, a fixed-point defense mechanism is installed on the regional defense mechanism, and a low-altitude defense monitoring equipment is fixedly installed on the rotating seat.

[0008] Preferably, the oil tank mounting mechanism comprises a bidirectional screw rod, the bidirectional screw rod is rotatably connected through the inner wall of the base, the outer wall of both ends of the bidirectional screw rod is threadedly connected with a moving frame, the moving frame is rotatably connected with a support rod at both ends, two support rods on one side are rotatably connected with an oil tank adapter frame, and one of the oil tank adapter frames is provided with a slot matched with the oil tank truck.

[0009] Preferably, a winding pipe is rotatably connected in the take-up seat, the top end of the winding pipe extends into the water tank, a water pipe is wound on the outer wall of the winding pipe, the other end of the water pipe is rotatably connected through the inner wall of the take-up seat, a universal joint is fixedly connected at the bottom end of the winding pipe, the other end of the universal joint extends to the outside through the inner wall of the take-up seat, a handle is slidably matched with the eccentric structure on the outer end of the universal joint, and one end of the handle is movably inserted with the winding pipe.

[0010] Preferably, a water guide cavity is formed in the mounting seat, a water guide pipe is fixedly connected through the water guide cavity, the other end of the water guide pipe extends to the inside through the outer wall of the water tank, a motor A is fixedly connected at the bottom end of the mounting seat, the output end of the motor A extends to the inside through the bottom end of the mounting seat and is fixedly connected with the rotating seat, a high-pressure water pump is fixedly installed on the rotating seat, and the input end of the high-pressure water pump extends to the water guide cavity through the rotating seat.

[0011] Preferably, the regional defense mechanism comprises a water spraying seat, a soft pipe A is fixedly connected at the water inlet end of the water spraying seat, the other end of the soft pipe A is fixedly connected with the output end of the high-pressure water pump, a plurality of water spraying holes are formed in the fan-shaped structure on one side of the water spraying seat, the bottom end of the water spraying seat is rotatably connected with the fixed seat on both sides, a motor B is fixedly connected at the end of the water spraying seat connected with the fixed seat, and the motor B is fixedly connected with the fixed seat.

[0012] Preferably, an adjustable flow guide seat is rotatably connected with the inner wall of the water spraying seat, one end of the adjustable flow guide seat extends to the outside through the inner wall of the water spraying seat and is fixedly connected with a motor C, and the motor C is fixedly connected with the outer wall of the water spraying seat.

[0013] Preferably, the site defense mechanism comprises a conical head jet pipe, the conical head jet pipe is fixedly connected with the inner wall of the water jet seat, a impeller is rotatably connected with the inner wall of the conical head jet pipe, a worm is fixedly connected with one end of the impeller, a worm wheel is meshingly and drivingly connected with one side of the worm, the worm wheel is rotatably connected with the inner wall of the conical head jet pipe at one end, and a connecting rod is rotatably connected with the outer end of the worm wheel in an eccentric structure.

[0014] Preferably, the other end of the connecting rod is rotatably connected with a piston rod, the outer wall of the piston rod is slidingly connected with an extrusion pipe, the extrusion pipe is fixedly connected with the outer wall of the water jet seat, the output end of the extrusion pipe is fixedly connected with the inner wall of the conical head jet pipe through a pipeline, and the input end of the extrusion pipe is fixedly connected with the inner wall of the pigment barrel fixedly connected with the fixed seat through a hose B.

[0015] A defense method of a low-altitude defense device, specifically comprising the following steps:

[0016] S1, when the low-altitude defense device needs to be installed on the oil tank truck, first, the base is placed between the two oil inlets on the oil tank of the oil tank truck, and then the oil tank installation mechanism is used to be installed and fixed against the outer wall of the oil inlet on the oil tank of the oil tank truck;

[0017] S2, when the low-altitude defense monitoring device monitors that birds approach the oil tank truck, the rotating seat is controlled to rotate to a suitable angle;

[0018] S3, then the area defense mechanism is controlled to rotate to a suitable angle, and a fan-shaped water curtain is sprayed out through the area defense mechanism to drive and defend the birds;

[0019] S4, when it is monitored that a drone approaches the oil tank truck, the area defense mechanism is controlled to rotate to a suitable angle, and the area defense mechanism is adjusted, so that high-pressure water flow is sprayed out through the site defense mechanism, and the sprayed colored high-pressure water column can effectively hit the blades of the drone, and the colored water can be attached to the lens of the drone to cause visual interference and drive and defend.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1. By arranging the oil tank installation mechanism, the two oil tank adapters with the outer shape matched with the outer wall of the oil inlet on the oil tank truck, the low-altitude defense device can be quickly docked and fixed when installed and used on the oil tank truck, without the need for additional punching or welding, facilitating the mobile deployment and temporary installation of the device, so that the low-altitude defense device can be stably, safely and quickly installed on the oil tank truck for use, and the mobility, reliability and defense effect of the device are significantly improved;

[0022] 2. By setting the area defense mechanism, a plurality of water spray holes are arranged in a fan-shaped structure on the water spray seat, which can realize spraying a wide water mist area and can drive the target in a large range without damage, which is a high-efficiency, low-cost and non-invasive defense means, and is suitable for bird protection and low-altitude unmanned aerial vehicle threat, and by setting the point defense mechanism, a high-pressure water column containing pigment can be sprayed to defend the unmanned aerial vehicle, the unmanned aerial vehicle relies on visual sensor for navigation and positioning, and the pigment can quickly cover the sensor and lens of the unmanned aerial vehicle, interfere with its vision or infrared sensor, make it lose control, force it to move away from the target area, and realize multi-mode defense means;

[0023] 3. By the take-up seat, the device is provided with a water pipe, and the low-altitude defense equipment can realize fast, convenient and external-independent water filling function when used on the oil tank truck, while the height integration and reliability of the equipment are maintained, and the working efficiency and safety in mobile and emergency deployment are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic view of the low-altitude defense equipment and defense method of the application;

[0025] Figure 2 It is a whole structure schematic view of the low-altitude defense equipment and defense method of the application when applied to the oil tank truck;

[0026] Figure 3 It is a whole structure schematic view of the low-altitude defense equipment and defense method of the application;

[0027] Figure 4 It is a whole structure schematic view of the low-altitude defense equipment and defense method of the application;

[0028] Figure 5 It is a whole structure schematic view of the low-altitude defense equipment and defense method of the application;

[0029] Figure 6 It is a whole structure schematic view of the low-altitude defense equipment and defense method of the application;

[0030] Figure 7 It is a whole structure schematic view of the low-altitude defense equipment and defense method of the application;

[0031] Figure 8 It is a whole structure schematic view of the low-altitude defense equipment and defense method of the application.

[0032] The diagram shows: 1. Base; 2. Oil tank mounting mechanism; 3. Cable reel; 4. Water tank; 5. Mounting base; 6. Rotating base; 7. Fixed base; 8. Area defense mechanism; 9. Fixed-point defense mechanism; 10. Low-altitude defense monitoring equipment; 201. Two-way lead screw; 202. Moving frame; 203. Support rod; 204. Oil tank adapter frame; 301. Retracting hose; 302. Water pipe; 303. Universal joint; 304. Throttle; 501. Water guide chamber; 502, water guide pipe; 503, motor A; 601, high-pressure water pump; 801, spray base; 802, hose A; 803, spray hole; 804, motor B; 805, adjustable guide seat; 806, motor C; 901, cone-shaped spray pipe; 902, impeller; 903, worm; 904, worm wheel; 905, connecting rod; 906, piston rod; 907, extrusion tube; 908, hose B; 701, paint bucket. Detailed Implementation

[0033] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0034] like Figures 1-8 The diagram illustrates a low-altitude defense device and method, comprising a base 1, an oil tank mounting mechanism 2 rotatably connected within the base 1, a cable reel 3 fixedly connected to the base 1, a water tank 4 fixedly connected to the cable reel 3, a mounting base 5 fixedly connected to the water tank 4, a rotating seat 6 rotatably connected to the mounting base 5, a fixed seat 7 fixedly mounted on the rotating seat 6, an area defense mechanism 8 rotatably connected to the fixed seat 7, a fixed-point defense mechanism 9 mounted on the area defense mechanism 8, and a low-altitude defense monitoring device 10 fixedly mounted on the rotating seat 6. The low-altitude defense monitoring device 10 employs multiple sensor technologies such as radar, optical, infrared, and radio spectrum sensors, combined with an intelligent processing system for real-time monitoring and threat identification.

[0035] The low-altitude defense monitoring equipment 10 has the following characteristics:

[0036] 1. Multi-source cooperative detection technology

[0037] BeiDou + 5G / ADS-B Fusion Positioning

[0038] Develop an integrated space-ground navigation enhancement algorithm that combines satellite positioning and ground station data to achieve sub-meter positioning accuracy in urban canyon environments. Drawing on the experience of the Shenzhen logistics pilot, through 5G base station carrier phase measurement technology, for the problem of positioning drift caused by urban canyon shielding, introduce Kalman filtering and RTS smoothing algorithm, fuse Beidou three satellite-based augmentation signals and 5G base station carrier phase measurement data, the positioning error is controlled within 0.5 meters. Simultaneously develop an integrated space-ground navigation enhancement protocol that is compatible with civilian ADS-B broadcast signals, achieving a positioning delay compression of 200 milliseconds.

[0039] Microwave-optical collaborative imaging

[0040] Build a 35GHz / 94GHz dual-band millimeter wave radar and infrared thermal imaging linkage mechanism, use the RS-RBF model proposed in "Low-altitude target attribute recognition based on multi-sensor information fusion" to realize real-time extraction and matching of target feature parameters, build a 35GHz / 94GHz dual-band millimeter wave radar and infrared thermal imaging linkage mechanism, and use the RS-RBF model to realize real-time extraction of target feature parameters. Through timestamp alignment and feature point matching technology, solve the problem of radar echo and optical image space-time registration, and improve the target recognition rate in complex environments to more than 95%.

[0041] 2. Intelligent identification and situation assessment

[0042] Deep learning target classification

[0043] Using semi-supervised learning SSL combined with active learning AL strategy, reduce the cost of manual labeling by 60%. Collect 100,000 optical images and 50,000 radar point cloud data of 12 types of targets such as drones, helicopters, and balloons, build a multi-modal sample library containing speed, trajectory, and RCS features, with a labeling accuracy of 98%. Based on a training set of 100,000+ samples, develop a lightweight CNN-LSTM network to achieve second-level classification of 12 types of targets such as drones, birds, and balloons, with a false positive rate of less than 5%.

[0044] Dynamic threat assessment model

[0045] Fusion of target trajectory, speed, and load characteristics, establishment of threat level quantization algorithm 0-10, support for custom protection rules in key areas, design of custom protection rule engine, support for priority setting in key areas, threat level assessment response time ≤1 second, accuracy ≥92%.

[0046] 3. Multi-level countermeasure prevention and control system

[0047] Three-level response mechanism

[0048] Early warning layer: 2 kilometers away from detection and tracking, generating airspace situation map

[0049] Interference layer: GNSS / data transmission signal directional jamming within 1 km

[0050] Interception layer: enable laser / net capture device within 500 meters, interception success rate ≥ 90%

[0051] Distributed collaborative architecture

[0052] Adopting "perception node - regional center - command platform" three-level networking, supporting 100 + node synchronous work, building a 30 square kilometer level protection circle, single node deployment time ≤ 30 minutes.

[0053] As shown in Figure 4 , the oil tank mounting mechanism 2 comprises a bidirectional screw rod 201, which is rotatably connected with the inner wall of the base 1, and the outer wall of both ends of the bidirectional screw rod 201 is threadedly connected with a moving frame 202, both ends of the moving frame 202 are rotatably connected with a supporting rod 203, and between the two supporting rods 203 on one side, an oil tank adapter frame 204 is rotatably connected, and one of the oil tank adapter frames 204 is provided with a slot matched with the oil tank truck.

[0054] By setting the oil tank mounting mechanism 2, the two oil tank adapter frames 204 with the shape matched with the outer wall of the oil tank truck filling port, the low-altitude defense equipment can be quickly docked and fixed when installed and used on the oil tank truck, without the need for additional punching or welding, facilitating the mobile deployment and temporary installation of the equipment, so that the low-altitude defense equipment can be stably, safely and quickly installed and used on the oil tank truck, and the mobility, reliability and defense effect of the equipment are significantly improved.

[0055] As shown in Figure 5 , the winding seat 3 is rotatably connected with a winding pipe 301, the winding pipe 301 extends to the water tank 4, the outer wall of the winding pipe 301 is wound with a water pipe 302, the other end of the water pipe 302 is rotatably connected with the inner wall of the winding seat 3, the bottom end of the winding pipe 301 is fixedly connected with a universal joint 303, the other end of the universal joint 303 extends to the outside through the inner wall of the winding seat 3, the outer end of the universal joint 303 is slidably connected with a handle 304 in an eccentric structure, and one end of the handle 304 is movably inserted with the winding pipe 301. A water level sensor is installed in the water tank 4 to realize full and water shortage prompt. The handle 304 facilitates the winding and positioning of the water pipe 302. The winding pipe 301 and the water tank 4 are provided with a sealing structure.

[0056] As shown in Figure 6As shown, the mounting seat 5 is provided with a water guide cavity 501, and a water guide pipe 502 is fixedly connected in the water guide cavity 501 and extends to the inside of the water tank 4 through the outer wall of the water tank 4. A motor A 503 is fixedly connected to the bottom end of the mounting seat 5, and the output end of the motor A 503 extends to the inside of the mounting seat 5 through the bottom end of the mounting seat 5 and is fixedly connected with a rotating seat 6. The rotating seat 6 is fixedly provided with a high-pressure water pump 601, and the input end of the high-pressure water pump 601 extends to the water guide cavity 501 through the rotating seat 6. A sealing structure is arranged between the rotating seat 6 and the inner wall of the water guide cavity 501.

[0057] As shown in the figure, Figure 7 The area defense mechanism 8 includes a water spraying seat 801, and a hose A 802 is fixedly connected to the water inlet end of the water spraying seat 801. The other end of the hose A 802 is fixedly connected with the output end of the high-pressure water pump 601. A plurality of water spraying holes 803 are arranged in the fan-shaped structure on one side of the water spraying seat 801. The water spraying seat 801 is rotatably connected to the fixed seat 7 on both sides of the bottom end. A motor B 804 is fixedly connected to one end of the water spraying seat 801 connected with the fixed seat 7. The motor B 804 is fixedly connected with the fixed seat 7.

[0058] A rotatable flow guide seat 805 is rotatably connected to the inner wall of the water spraying seat 801. One end of the rotatable flow guide seat 805 extends to the outside through the inner wall of the water spraying seat 801 and is fixedly connected with a motor C 806. The motor C 806 is fixedly connected with the outer wall of the water spraying seat 801. The rotatable flow guide seat 805 realizes the switching of the defense means.

[0059] As shown in the figure, Figure 8 The fixed-point defense mechanism 9 includes a cone-shaped jet pipe 901, which is fixedly connected with the inner wall of the water spraying seat 801. A impeller 902 is rotatably connected to the inner wall of the cone-shaped jet pipe 901. A worm 903 is fixedly connected to one end of the impeller 902. A worm gear 904 is meshingly and drivably arranged on one side of the worm 903. One end of the worm gear 904 is rotatably connected with the inner wall of the cone-shaped jet pipe 901. The outer end of the worm gear 904 is rotatably connected with a connecting rod 905 in an eccentric structure.

[0060] The other end of the connecting rod 905 is rotatably connected with a piston rod 906. The outer wall of the piston rod 906 is slidably connected with an extrusion pipe 907. The extrusion pipe 907 is fixedly connected with the outer wall of the water spraying seat 801. The output end of the extrusion pipe 907 is fixedly connected with the inner wall of the cone-shaped jet pipe 901 through a pipeline. The input end of the extrusion pipe 907 is fixedly connected with the inner wall of the pigment barrel 701 fixedly connected to the fixed seat 7 through a hose B 908. A one-way valve is arranged in the input and output ends of the extrusion pipe 907. The piston rod 906 realizes automatic addition of the pigment.

[0061] A defense method of a low-altitude defense device, specifically comprising the following steps:

[0062] S1, when the low-altitude defense device needs to be installed on the oil tank truck, first place the base 1 between the two oil inlets on the oil tank truck, and then use the oil tank installation mechanism 2 to be installed and fixed against the outer wall of the oil inlet on the oil tank truck;

[0063] S2, when the low-altitude defense monitoring device 10 detects that birds are approaching the oil tank truck, rotate the rotating seat 6 to the appropriate angle by control;

[0064] S3, then control the area defense mechanism 8 to rotate to the appropriate angle, and drive away the birds by spraying a fan-shaped water curtain through the area defense mechanism 8;

[0065] S4, when monitoring that a drone is approaching the oil tank truck, rotate the area defense mechanism 8 to the appropriate angle, and adjust the area defense mechanism 8, so that the high-pressure water flow is sprayed through the fixed-point defense mechanism 9. Through the sprayed colored high-pressure water column, it can effectively hit the blades of the drone, and the colored water will adhere to the lens of the drone, causing visual interference to drive away the defense.

[0066] Working principle: when the low-altitude defense device needs to be installed on the oil tank truck for use, place the base 1 between the two oil inlets on the oil tank truck, then rotate the bidirectional screw 201, so that the bidirectional screw 201 can drive the two moving frames 202 to move, so that the moving frame 202 can drive the oil tank adapter 204 connected by the support rod 203 to move, so that the oil tank adapter 204 can be fixed against the outer wall of the oil inlet to fix the device;

[0067] Then pull one end of the rotating handle 304 out of the winding seat 3, then pull the outer end of the water pipe 302 to communicate with the external water source, and the external water source will inject water into the water tank 4 through the water pipe 302 and the winding pipe 301. When the water is filled, rotate the universal joint 303 connected to the rotating handle 304, so that the universal joint 303 drives the connected winding pipe 301 to rotate, and the water pipe 302 is wound into the winding seat 3 for protection. Then insert one end of the rotating handle 304 into the winding seat 3 for limiting;

[0068] In the use process of the low-altitude defense device, when the low-altitude defense monitoring device 10 detects that birds are approaching, use motor A503 to drive the rotating seat 6 to rotate to the appropriate angle, then use motor B804 to drive the water spraying seat 801 to rotate to the appropriate angle, then use the high-pressure water pump 601 to pump the water in the water tank 4 through the water guide pipe 502 and the water guide cavity 501, and inject it into the water spraying seat 801 through the hose A802, and then through the adjustable flow guide seat 805 through the multiple water spraying holes 803 on the fan-shaped structure of the water spraying seat 801 to spray out, realizing the water mist area, and driving away the approaching birds;

[0069] When the drone is monitored to approach, the adjustable fairing seat 805 is driven by the motor C806 to rotate, so that the high-pressure water flow is sprayed out through the cone jet pipe 901, the cone jet pipe 901 gradually converges the water flow, so that the sprayed water flow forms a high-density water column, and the high-speed flowing water flow drives the impeller 902 to rotate, so that the impeller 902 drives the connected worm 903 to rotate, so that the worm 903 can drive the worm gear 904 to rotate, so that the worm gear 904 drives the piston rod 906 to reciprocate through the connecting rod 905, so that the paint in the paint bucket 701 is injected into the cone jet pipe 901 through the extrusion pipe 907 through the hose B 908, so that the sprayed water flow has color, which can cover the lens of the drone to perform visual interference defense.

[0070] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0071] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A low-altitude defense apparatus comprising a base (1), characterized in that: The base (1) is provided with an oil tank mounting mechanism (2) rotatably connected inside, the base (1) is provided with a take-up seat (3) fixedly connected, the take-up seat (3) is provided with a water tank (4) fixedly connected, the water tank (4) is provided with a mounting seat (5) fixedly connected, the mounting seat (5) is provided with a rotating seat (6) rotatably connected, the rotating seat (6) is provided with a fixed seat (7) fixedly mounted, the fixed seat (7) is provided with a regional defense mechanism (8) rotatably connected, the regional defense mechanism (8) is provided with a fixed-point defense mechanism (9), and the rotating seat (6) is provided with a low-altitude defense monitoring device (10) fixedly mounted.

2. A low altitude defense apparatus according to claim 1, characterized in that: The oil tank mounting mechanism (2) comprises a bidirectional screw rod (201), the bidirectional screw rod (201) is rotatably connected with the inner wall of the base (1), the outer wall of the two ends of the bidirectional screw rod (201) is provided with a moving frame (202) in threaded connection, the moving frame (202) is rotatably connected with a support rod (203) at both ends, two support rods (203) on one side are rotatably connected with an oil tank adapter frame (204) between them, and one of the oil tank adapter frames (204) is provided with a slot matched with the oil tank truck.

3. The low altitude defense apparatus according to claim 1, characterized by: The take-up seat (3) is rotatably connected with a winding pipe (301) inside, the winding pipe (301) extends to the inside of the water tank (4) at the top end, the outer wall of the winding pipe (301) is wound with a water pipe (302), the other end of the water pipe (302) is rotatably connected with the inner wall of the take-up seat (3), the bottom end of the winding pipe (301) is fixedly connected with a universal joint (303), the other end of the universal joint (303) extends to the outside through the inner wall of the take-up seat (3), the outer end of the universal joint (303) is slidably connected with a handle (304) in an eccentric structure, and one end of the handle (304) is movably inserted with the winding pipe (301).

4. The low altitude defense apparatus according to claim 1, characterized by: The mounting seat (5) is provided with a water guide cavity (501) inside, the water guide cavity (501) is provided with a water guide pipe (502) fixedly connected and penetrating, the other end of the water guide pipe (502) extends to the inside through the outer wall of the water tank (4), the bottom end of the mounting seat (5) is fixedly connected with a motor A (503), the output end of the motor A (503) extends to the inside through the bottom end of the mounting seat (5) and is fixedly connected with the rotating seat (6), the rotating seat (6) is fixedly provided with a high-pressure water pump (601), and the input end of the high-pressure water pump (601) extends to the inside of the water guide cavity (501) through the rotating seat (6).

5. A low altitude defense apparatus according to claim 4, characterized in that: The regional defense mechanism (8) comprises a water spraying seat (801), one end of the water spraying seat (801) is fixedly connected with a hose A (802), the other end of the hose A (802) is fixedly connected with an output end of a high-pressure water pump (601), a plurality of water spraying holes (803) are formed in the water spraying seat (801) in a fan-shaped structure on one side of the water spraying seat (801), the water spraying seat (801) is rotatably connected with the fixed seat (7) at the bottom of the water spraying seat (801) on both sides, and a motor B (804) is fixedly connected with one end of the water spraying seat (801) connected with the fixed seat (7).

6. A low altitude defense apparatus according to claim 5, characterized in that: The inner wall of the water spraying seat (801) is rotatably connected with an adjustable flow guide seat (805), one end of the adjustable flow guide seat (805) extends to the outside through the inner wall of the water spraying seat (801) and is fixedly connected with a motor C (806), and the motor C (806) is fixedly connected with the outer wall of the water spraying seat (801).

7. A low altitude defense apparatus according to claim 6, characterized in that: The fixed-point defense mechanism (9) comprises a conical head spraying pipe (901), the conical head spraying pipe (901) is fixedly connected with the inner wall of the water spraying seat (801), the inner wall of the conical head spraying pipe (901) is rotatably connected with an impeller (902), one end of the impeller (902) is fixedly connected with a worm (903), one side of the worm (903) is meshingly and drivingly connected with a worm gear (904), one end of the worm gear (904) is rotatably connected with the inner wall of the conical head spraying pipe (901), and the outer end of the worm gear (904) is rotatably connected with a connecting rod (905) in an eccentric structure.

8. A low altitude defense apparatus according to claim 7, characterized in that: The other end of the connecting rod (905) is rotatably connected with a piston rod (906), the outer wall of the piston rod (906) is slidably connected with an extrusion pipe (907), the extrusion pipe (907) is fixedly connected with the outer wall of the water spraying seat (801), the output end of the extrusion pipe (907) is fixedly connected with the inner wall of the conical head spraying pipe (901) through a pipeline, and the input end of the extrusion pipe (907) is fixedly connected with the inner wall of a pigment barrel (701) fixedly connected with the fixed seat (7) through a hose B (908).

9. A defense method of a low-altitude defense device, using the low-altitude defense device of any one of claims 1-8, specifically comprising the following steps: S1, when the low-altitude defense device needs to be installed on the oil tank truck, first place the base (1) between the two oil inlets on the oil tank of the oil tank truck, and then use the oil tank installation mechanism (2) to be capable of being installed and fixed against the outer wall of the oil inlet on the oil tank of the oil tank truck; S2, when the low-altitude defense monitoring device (10) monitors that birds approach the oil tank truck, rotate the rotating seat (6) to a suitable angle by control; S3, then control the regional defense mechanism (8) to rotate to a suitable angle, and spray a fan-shaped water curtain by the regional defense mechanism (8) to drive away and defend the birds. S4, when monitoring the unmanned aerial vehicle approaching the oil tank truck, the control area defense mechanism (8) is rotated to the appropriate angle, and the area defense mechanism (8) is adjusted, so that the high-pressure water flow is sprayed through the fixed-point defense mechanism (9), and the colored high-pressure water column sprayed can effectively hit the blades of the unmanned aerial vehicle, and the colored water will adhere to the lens of the unmanned aerial vehicle, so that visual interference is generated to drive and defend.

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