Full-scale multi-target characteristic submarine metal decoy and its manufacturing and deployment methods

Abstract

The present application discloses a submarine metal decoy with full-size and multi-target characteristics, as well as its manufacturing and deployment methods. The decoy consists of a chassis, a keel structure, and a skin. The shape and size of the decoy are based on the structural dimensions of the exposed part of the real target in the berthing state. A fuel injection heating device is arranged inside the structure of the decoy, and the decoy can be heated up through this fuel injection heating device to simulate the actual temperature of the real target. In addition, the submarine metal decoy is also equipped with a shore-based omnidirectional angle reflection array device and a floating omnidirectional angle reflection array device. Through the setting of these two omnidirectional angle reflection array devices, the radar wave target characteristics of the decoy are enhanced. Therefore, the submarine metal decoy provided by the present application can maintain consistency with the real target in terms of multiple target characteristics such as shape, size, structure, material, infrared target characteristics, and radar wave target characteristics, providing cover for the real target submarine in the berthing state.

Description

Technical Field

[0001] This application relates to the technical field of submarine decoy production, and particularly to a full-size submarine metal decoy with multi-target characteristics and its production and deployment methods. Background Art

[0002] Military camouflage technology has a long history. Concealing the truth and showing false targets are two inseparable aspects of military camouflage. Showing false targets is conducive to ensuring the concealment of the target, distracting and attracting the attention and firepower of the enemy, and improving military and economic benefits.

[0003] Submarine decoys are one of the important means of military camouflage and deception, and are of great significance for protecting the safety of real submarines. With the continuous development of military reconnaissance technology, submarine decoys also need to be continuously updated and upgraded to adapt to the new battlefield environment. For example, the development of remote sensing technology has made the concealment of the berthing state of submarines (including surface navigation and berthing) an important tactical consideration, which involves the safety and concealment of submarines when berthing in ports, bases or concealed waters. Therefore, by preparing and deploying decoys at the dock, the enemy's reconnaissance system can be effectively confused, making it difficult for the enemy to accurately judge the position and state of the real submarine through remote sensing means, thus protecting the safety of the real submarine; on the other hand, by deploying submarine decoys, the enemy can be forced to disperse its forces and waste resources, thus confusing the enemy's decision-making and creating a tactical advantage.

[0004] Traditional decoys are mainly designed for the enemy's optical reconnaissance, only pursuing the similarity of the optical characteristics of the target appearance. Most traditional decoys are made of inflatable models, which have the advantages of realistic appearance, light weight, convenient transportation, and fast erection and withdrawal speed. However, with the rapid development of new reconnaissance technologies, especially the emergence and application of radar and satellite technologies, microwave and infrared reconnaissance have gradually become the mainstream of modern detection technologies. Due to the differences in materials and internal structures between traditional optical decoys and real targets, their radar cross-sectional areas and infrared emission characteristics are significantly different from those of real missile vehicles. Therefore, only pursuing the similarity of the outline and visible light band is increasingly difficult to meet the needs of war. In the field of submarine decoys, the current inflatable submarine decoys can no longer meet the concealment requirements of submarines in the berthing state. Therefore, it is necessary to propose a new technical solution to solve the problems existing in the prior art. Summary of the Invention

[0005] This application provides a full-size submarine metal decoy with multi-target characteristics and its production and deployment methods to solve the problem that current submarine decoys cannot meet the concealment requirements of submarines in the berthing state.

[0006] To achieve the above object, this application provides the following technical solutions:

[0007] On the one hand, the present application provides a submarine metal false target with full-size multi-objective characteristics, including a chassis, a keel structure and a skin. The chassis is a spliced plate-like structural member, and the shape and size of the chassis are respectively the same as the shape and size of the draft line profile of the real target in the berthing state. The keel structure is installed above the chassis and is composed of several steel beams. The skin is welded and fixed on the surface of the keel structure facing away from the chassis. The keel structure is used to support the skin and form a simulation structure with the same structure as the part of the real target exposed above the water surface in the berthing state. A coating with the same color as the real target is provided on the surface of the skin. A fuel injection heating device is arranged in the space enclosed by the skin and the chassis.

[0008] In the above technical solution, further, the chassis includes a plurality of pontoon modules, and the plurality of pontoon modules are arranged in a grid pattern on the same horizontal plane. Any two adjacent pontoon modules are firmly connected by a connecting piece. Steel structure reinforcement members are provided around the perimeter and on the bottom surface of the chassis.

[0009] Furthermore, six hidden dragging devices are provided around the perimeter of the chassis. One hidden dragging device is respectively arranged at both ends of the chassis along its length direction, and two hidden dragging devices are respectively arranged at both ends of the chassis along its width direction. The movement of the submarine metal false target is realized through the hidden dragging devices. The hidden dragging device includes a connecting seat fixed on the steel structure reinforcement member around the perimeter of the chassis and a dragging rope arranged on the connecting seat.

[0010] Further, the keel structure is composed of a plurality of curved beam crossbars, a plurality of connecting vertical beams and a plurality of support beams to form a frame structure. The plurality of curved beam crossbars are arranged in parallel at intervals along the length direction of the chassis. The plurality of connecting vertical beams are arranged in parallel at intervals along the width direction of the chassis. Each connecting vertical beam is welded and fixed to the plurality of curved beam crossbars. The support beam is installed below the curved beam crossbar and is fixedly connected to the chassis. The outer edge of the bottom of the keel structure is adaptively connected to the outer edge of the chassis.

[0011] Furthermore, a power device, a driving device, and a control device are installed on the chassis; the power device includes a generator and a battery pack; the driving device includes an electric motor and a traveling and steering control mechanism. The electric motor is electrically connected to the output end of the generator and the battery pack respectively. The traveling and steering control mechanism includes a steering gear of the operating mechanism, a transmission assembly, and a rudder blade. The steering gear of the operating mechanism is signal-connected to the electric motor. The transmission assembly includes a first gear installed on the output shaft of the electric motor, and a second gear meshing with the first gear is arranged on the rudder blade. The steering gear of the operating mechanism is signal-connected to the control device and can control the rotation of the electric motor according to the signal received from the control device, thereby driving the rudder blade to swing. The control device includes a processor and a sensor module signal-connected to the processor. The sensor module includes a GPS, a gyroscope, and a speed sensor. The processor outputs an instruction signal to the steering gear of the operating mechanism according to the sensing signals received from the sensor module.

[0012] Furthermore, the material of the skin is aluminum alloy, titanium alloy, magnesium alloy, or stainless steel.

[0013] Furthermore, the fuel injection heating device includes a fuel tank, a fuel pump, an injector, an igniter, a combustion chamber, a temperature sensor, and a controller. The fuel pump is used to pump the fuel in the fuel tank to the injector. The injector is used to inject the fuel into the combustion chamber. The igniter is used to ignite the fuel injected into the combustion chamber. The temperature sensor is used to monitor the temperature inside the submarine metal decoy in real time. The internal temperature reference value of the real target is stored in the controller. The controller can send a control signal for controlling the start and stop of the injector action to the injector according to the internal temperature reference value and the temperature signal obtained from the temperature sensor.

[0014] Furthermore, an onshore omnidirectional anti-array device is further included. The onshore omnidirectional anti-array device is arranged at the edge of the dock where the submarine metal decoy is docked. One onshore omnidirectional anti-array device is arranged at the positions close to the head, middle, and tail of the submarine metal decoy respectively.

[0015] Furthermore, each submarine metal decoy is equipped with two floating omnidirectional anti-array devices. The two floating omnidirectional anti-array devices are arranged oppositely along the central axis direction of the submarine metal decoy. One floating omnidirectional anti-array device is close to the head of the submarine metal decoy, and the other floating omnidirectional anti-array device is close to the tail of the submarine metal decoy.

[0016] Furthermore, the shore-based omnidirectional corner reflector array device includes a base frame and a multi-layer corner reflector array group mounted on the base frame. Each layer of the corner reflector array group includes a plurality of corner reflectors arranged in a circle along the circumferential direction of the base frame. Along the direction from the bottom to the top of the base frame, the number of corner reflectors forming each layer of the corner reflector array group decreases layer by layer; a corner reflector is provided at the top of the base frame, and the open end face of the corner reflector faces away from the ground and is parallel to the ground.

[0017] Furthermore, the floating omnidirectional corner reflector array device includes a floating seat and a vertical mounting rod provided on the upper surface of the floating seat. A plurality of omnidirectional corner reflector array groups are provided on the vertical mounting rod from bottom to top. Each omnidirectional corner reflector array includes eight corner reflectors, and the eight corner reflectors are closely arranged to form a regular octahedron structure.

[0018] On the other hand, the present application provides a method for manufacturing a full-size multi-target characteristic submarine metal decoy, including the following steps:

[0019] S1: Fabricate the chassis of the submarine metal decoy according to the shape and size of the draft line profile of the real target in the berthing state.

[0020] S2: Build a keel structure on the chassis according to the shape and size of the part of the real target exposed above the water surface in the berthing state, install a fuel injection heating device in the gaps of the keel structure, and then weld the skin to the keel structure.

[0021] S3: Spray a coating with the same color as the real target on the outer surface of the skin.

[0022] The chassis in the above step S1 adopts a floating bridge splicing structure. Steel structure reinforcement members are provided around and on the bottom surface of the chassis, and a plurality of hidden dragging devices are provided around the chassis.

[0023] On yet another aspect, the present application provides a deployment method for a full-size multi-target characteristic submarine metal decoy, including the following steps:

[0024] L1: Dock the submarine metal decoy at the target dock.

[0025] L2: Set three of the shore-based omnidirectional corner reflector array devices at the edge of the target dock. The three shore-based omnidirectional corner reflector array devices are respectively close to the head, middle, and tail of the submarine metal decoy.

[0026] L3: Set a floating omnidirectional corner reflector array device at the head of the submarine metal decoy and a floating omnidirectional corner reflector array device at the tail of the submarine metal decoy. The two floating omnidirectional corner reflector array devices are respectively connected to the submarine metal decoy.

[0027] Compared with the prior art, the present application has at least the following beneficial effects:

[0028] 1. Based on further analysis and research of the problems in the prior art, it is recognized that in the context of the rapid development of microwave and infrared reconnaissance and detection technologies, traditional inflatable false targets are difficult to achieve military camouflage effects. In particular, current inflatable submarine false targets can no longer meet the concealment requirements of submarines in the berthing state. Therefore, the present application provides a submarine metal false target with full-size multi-target characteristics. The false target is composed of a chassis, a keel structure, and a skin. The shape and size of the false target are based on the structural dimensions of the part of the real target that is exposed above the water surface in the berthing state, and it is a simulation structure of the real target. In particular, the present application is provided with a fuel injection heating device inside the structure of the false target, and the false target can be heated through this fuel injection heating device to simulate the actual temperature of the real target. Therefore, the submarine metal false target provided by the present application is made of metal material, simulates the structural form of the part of the real target that is exposed above the water surface in the berthing state, and simulates the actual temperature of the real target through internal heating, so as to maintain consistency with the real target in terms of multiple target characteristics such as shape, size, structure, material, and temperature (infrared target characteristics), providing cover for the real target submarine in the berthing state.

[0029] 2. To adapt to microwave detection technology, the present application also configures a shore-based omnidirectional angle reflection array device and a floating omnidirectional angle reflection array device for the submarine metal false target. By setting these two omnidirectional angle reflection array devices, the radar wave target characteristics of the false target are enhanced, further improving the camouflage effect.

[0030] 3. The chassis of the submarine metal false target provided by the present application adopts a floating bridge splicing structure, so it has strong assemblability and can be assembled accordingly according to the shape and size of the part of the real target that is exposed above the water surface. Therefore, the present application can adapt to real target submarines of various shapes and sizes.

[0031] 4. In the present application, steel structure reinforcement members are provided on the chassis of the submarine metal false target to prevent the swinging deformation caused by the impact of sea waves on the false target. The steel structure reinforcement members can be steel hoops that fasten each floating bridge module together.

[0032] 5. To facilitate the movement of the submarine metal false target, six hidden dragging devices are provided around the chassis of the present application, and the submarine metal false target can be moved to the target position through a power device such as a tugboat.

[0033] 6. The keel structure in the present application is the structural framework of the submarine metal false target. It supports the skin and forms a simulation structure of the real target with the skin coated with the same color as the real target, maintaining consistency with the shape and structure characteristics of the real target and improving the camouflage effect.

[0034] 7. To avoid revealing the operation intention after forming a pattern by frequently towing with a tugboat, the present application also provides a power device, a driving device, and a control device on the chassis of the submarine metal decoy. Such a structural design can enable the submarine metal decoy to move forward and turn autonomously, approaching the real target in terms of movement characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. It should be understood that the specific shapes and structures shown in the drawings are generally not considered as limiting conditions when implementing the present application; for example, those skilled in the art are capable of making conventional adjustments or further optimizations to the addition / removal / attribution division of certain units (components), specific shapes, positional relationships, connection methods, dimensional ratio relationships, etc. based on the technical concepts disclosed in the present application and the exemplary drawings.

[0036] Figure 1 It is a schematic side view structure diagram of a submarine metal decoy in an embodiment, and can also be understood as the hull structure diagram of the part of the real target exposed above the water in the berthing state;

[0037] Figure 2 It is a schematic side view structure diagram of a real target submarine;

[0038] Figure 3 It is an internal schematic diagram of a submarine metal decoy in an embodiment, mainly showing the keel structure;

[0039] Figure 4 It is a schematic diagram of the grid-shaped chassis structure of a submarine metal decoy in an embodiment;

[0040] Figure 5 It is a schematic diagram of the keel structure of a submarine metal decoy in an embodiment;

[0041] Figure 6 It is a schematic diagram of the deployment positions of a submarine metal decoy, a floating omnidirectional angle reflection array device, and a shore-based omnidirectional angle reflection array device in an embodiment;

[0042] Figure 7 It is a schematic structure diagram of a shore-based omnidirectional angle reflection array device in an embodiment;

[0043] Figure 8 For Figure 7 It is a top view structure diagram of the shore-based omnidirectional angle reflection array device shown;

[0044] Figure 9It is a schematic structural diagram of a floating omnidirectional corner reflector array device in an embodiment.

[0045] Explanation of reference numerals:

[0046] 1. Chassis;

[0047] 2. Keel structure; 21. Curved beam; 22. Connecting vertical beam; 23. Supporting beam;

[0048] 3. Skin;

[0049] 4. Shore-based omnidirectional corner reflector array device;

[0050] 5. Floating omnidirectional corner reflector array device;

[0051] 6. Corner reflector. Detailed implementation manners

[0052] The following further details the present application through specific embodiments in conjunction with the accompanying drawings.

[0053] In the description of the present application: Unless otherwise specified, "a plurality of" means two or more. Expressions such as "including", "comprising", "having" in the present application also mean "not limited to" (certain units, components, materials, steps, etc.).

[0054] Terms such as "upper", "lower", "left", "right", "middle" cited in the present application are usually for facilitating intuitive understanding with reference to the accompanying drawings, rather than an absolute limitation on the positional relationship in the actual product. Without departing from the technical concept disclosed in the present application, changes in these relative positional relationships should also be regarded as within the scope of the present application's description.

[0055] Embodiment 1

[0056] This embodiment provides a full-size submarine metal decoy with multi-target characteristics, such as Figure 1 , 3 . This submarine metal decoy mainly includes a chassis 1, a keel structure 2 and a skin 3. The chassis 1 is a spliced plate-like structural member, and the shape and size of the chassis 1 are respectively the same as the shape and size of the waterline contour of the real target in the moored state; the keel structure 2 is installed above the chassis 1, and the keel structure 2 is composed of several steel beams combined. The skin 3 is welded and fixed on the surface of the keel structure 2 facing away from the chassis 1. The keel structure 2 is used to support the skin 3 and form a simulation structure with the skin 3 that is the same as the structure of the part of the real target exposed above the water surface in the moored state. A coating with the same color as the real target is provided on the surface of the skin 3; a fuel injection heating device (not shown) is provided in the space enclosed by the skin 3 and the chassis 1.

[0057] In a specific application example, the false target docks at a port, and the simulation requirements for the infrared target characteristics are different under different meteorological conditions. Under direct sunlight on a sunny day, the temperature of the false target itself is much higher than the ambient temperature. At this time, it is in a natural state, similar to the characteristics of the actual installation (true target) in the same environment, and no simulation is required. However, under weather conditions such as cloudy days, rainy days, and nights, there are significant differences between the infrared target characteristics of the false target and the actual installation. Considering that the internal space of the submarine false target is relatively empty and its sealing performance is far inferior to that of the actual installation, the inventor proposes that an electronic control fuel injection heating method can be adopted inside the false target to increase the temperature of the false target itself, so as to simulate the infrared characteristics of the actual installation and improve the infrared target characteristics.

[0058] In an embodiment of the present application, the fuel injection heating device provided inside the false target includes a fuel tank, a fuel pump, an injector, an igniter, a combustion chamber, a temperature sensor, and a controller. The fuel pump is used to pump the fuel in the fuel tank to the injector. The injector is used to inject the fuel into the combustion chamber. The igniter is used to ignite the fuel injected into the combustion chamber. The temperature sensor is used to monitor the temperature inside the submarine metal false target in real time. The internal temperature reference value of the true target is stored in the controller. The controller can send a control signal for controlling the start and stop of the injector to the injector according to the internal temperature reference value and the temperature signal obtained from the temperature sensor. Compared with other heating methods such as heating wires, this fuel injection heating method has a faster temperature rise and can quickly simulate and achieve infrared target characteristics similar to those of the true target.

[0059] In the above embodiment, the shape, size, and color of the false target are based on the structural dimensions and color of the part of the true target exposed above the water surface in the berthing state. It is a simulation structure of the true target. The present application improves the camouflage effect of the false target by accurately simulating the appearance and color of the true target, thereby improving the concealment and survivability of the true target; in addition, the present application is provided with a fuel injection heating device inside the structure of the false target. The false target can be heated through this fuel injection heating device, and it can adjust the surface temperature of the false target according to the external environmental temperature, so that it can still maintain similar infrared characteristics to those of the true target under different weather conditions, enhancing adaptability; at the same time, in the present application, the chassis 1 adopts a splicing structure, which is convenient for disassembly and maintenance, can quickly replace damaged parts, and can adapt to the production of false targets of various structural dimensions; therefore, the submarine metal false target provided in this embodiment is made of metal material, simulates the structural form of the part of the true target exposed above the water surface in the berthing state, and simulates the actual temperature of the true target through internal heating, so as to maintain consistency with the true target in terms of multiple target characteristics such as shape, size, structure, material, and temperature (infrared target characteristics), providing cover for the true target submarine in the berthing state.

[0060] In an embodiment of the present application, the chassis 1 of the false target adopts a pontoon splicing method, and the cross-sectional shape of the draft line contour of the real target submarine is spliced by spliceable pontoons to simulate the shape structure and size of the part of the real target exposed above the water surface. Specifically, the chassis 1 is composed of multiple pontoon modules, and the multiple pontoon modules are arranged in a grid pattern on the same horizontal plane, as Figure 4 , and any two adjacent pontoon modules are firmly connected by connectors. The pontoon modules can be made of lightweight and high-strength materials, such as materials with good buoyancy and corrosion resistance like aluminum alloy, steel, or high-density polyethylene (HDPE). The pontoon modules used in this application can be off-the-shelf modular products or can be specifically customized according to the shape and size requirements of the false target.

[0061] In an embodiment of the present application, to prevent the rocking deformation caused by the impact of sea waves on the false target, the perimeter and bottom surface of the chassis 1 can be reinforced with a steel structure. Specifically, steel structure reinforcement members (not shown), such as steel hoops and other structural members with a fastening function, can be provided on the perimeter and bottom surface of the chassis 1.

[0062] In an embodiment of the present application, to facilitate the tugboat to tow the false target, at least six concealed towing devices (one in the front and one in the back of the false target, two on each side, not shown) can be provided around the chassis 1. In a specific manufacturing example, the concealed towing device includes a connecting seat fixed on the steel structure reinforcement members around the chassis 1 and a towing rope provided on the connecting seat.

[0063] In an embodiment of the present application, as Figure 5 , the keel structure 2 is composed of multiple curved beam crossbars 21, multiple connecting vertical beams 22, and multiple support beam crossbars 23 to form a frame structure. The multiple curved beam crossbars 21 are arranged in parallel at intervals along the length direction of the chassis 1, the multiple connecting vertical beams 22 are arranged in parallel at intervals along the width direction of the chassis 1, each connecting vertical beam 22 is welded and fixed to the multiple curved beam crossbars 21, the support beam crossbars 23 are installed below the curved beam crossbars 21 and fixedly connected to the chassis 1, and the outer edge of the bottom of the keel structure 2 is adaptively connected to the outer edge of the chassis 1.

[0064] During specific manufacturing, high-strength and corrosion-resistant high-quality steel is selected for the keel. Since there are various shape and size of the real target submarine, when manufacturing the corresponding false target, the corresponding keel structure 2 needs to be made according to the shape and size of the real target. The size and arc of each keel (i.e., the curved beam crossbar 21, the connecting vertical beam 22, and the support beam crossbar 23) that makes up the keel structure 2 are different. When manufacturing, each group of keels needs to be designed separately according to the specific structural shape, and the overall structural layout and stress conditions of the submarine need to be fully considered during the design. The cross-sectional shape and size of the keel need to be accurately calculated and optimized to meet the requirements of strength and stability.

[0065] In an embodiment of the present application, the skin 3 is made of a lightweight and high-strength metal material, such as aluminum alloy, titanium alloy, magnesium alloy, or stainless steel, etc. To ensure the flatness of the appearance, the skin 3 is constructed using a welding process. After the construction of the skin 3 is completed, a coating similar to the target color is applied overall, including detail beautification, etc.

[0066] In an embodiment of the present application, to avoid exposing the operation intention after forming a pattern by frequently dragging the decoy with a tugboat, a large generator can be installed on the chassis 1 to drive the motor, supporting the autonomous transfer operation of the decoy. Specifically, a power device, a driving device, and a control device can be installed on the chassis 1; the power device includes a generator and a battery pack; the driving device includes a motor and a traveling and steering control mechanism, the motor is electrically connected to the output end of the generator and the battery pack respectively, the traveling and steering control mechanism includes a steering mechanism servo, a transmission component, and a rudder blade, the steering mechanism servo is signal-connected to the motor, the transmission component includes a first gear installed on the output shaft of the motor, and a second gear meshing with the first gear is arranged on the rudder blade, the steering mechanism servo is signal-connected to the control device and can control the rotation of the motor according to the signal received from the control device, thereby driving the rudder blade to swing; the control device includes a processor and a sensor module signal-connected to the processor, the sensor module includes a GPS, a gyroscope, and a speed sensor, and the processor outputs an instruction signal to the steering mechanism servo according to the sensing signals received from the sensor module.

[0067] In the above embodiment, the design of the generator and the battery pack ensures the stability of power and the endurance. As the driving source, the motor is connected to the generator and the battery pack and can flexibly switch the power source according to needs. The traveling and steering control mechanism can achieve precise steering control through the combination of the servo, the transmission component, and the rudder blade. As the control mechanism, the servo can quickly respond according to the instructions sent by the control device. The transmission component ensures that the rotation of the motor can be effectively transmitted to the rudder blade through gear meshing (the first gear and the second gear are meshed), thereby realizing the swing of the rudder blade. The gear transmission can enhance the torque output and improve the flexibility of the rudder blade rotation. The combination of the above GPS, gyroscope, and speed sensor can obtain the position information and motion state of the model ship in real time, and the processor can perform dynamic adjustment according to these data, thereby outputting an instruction signal to control the servo. This feedback control system helps to improve the control accuracy of the model ship. Through the setting of the above power device, driving device, and control device, the decoy can adjust the course in real time after receiving the sensor information, and the servo drives the rudder blade to change the direction according to the control instruction, having good steering ability.

[0068] Therefore, the submarine metal decoy provided in this embodiment is based on the structural dimensions of the exposed part of the real target in the berthing state and is a simulation structure of the real target. In particular, a fuel injection heating device is provided inside the structure of the decoy, and the decoy can be heated up through this fuel injection heating device to simulate the actual temperature of the real target. Therefore, the submarine metal decoy provided in this application is made of metal material, simulates the structural form of the exposed part of the real target in the berthing state, and simulates the actual temperature of the real target through internal heating, so as to maintain consistency with the real target in terms of multiple target characteristics such as shape, size, structure, material, and temperature (infrared target characteristics), providing cover for the real target submarine in the berthing state.

[0069] Embodiment 2

[0070] This embodiment provides a submarine metal decoy, which includes all the content described in Embodiment 1 above. Compared with Embodiment 1, the submarine metal decoy provided in this embodiment realizes the simulation of radar target characteristics.

[0071] In this embodiment, an onshore omnidirectional corner reflector array device 4 and a floating omnidirectional corner reflector array device 5 are configured for the submarine metal decoy. During the specific deployment process, omnidirectional radar cross-section coverage can be achieved through reasonable corner reflector array design and layout methods, which can achieve a good radar detection interference effect.

[0072] In this embodiment, the onshore omnidirectional corner reflector array device 4 is arranged at the edge of the dock where the submarine metal decoy is berthed, and an onshore omnidirectional corner reflector array device 4 is respectively arranged at positions close to the head, middle, and tail of the submarine metal decoy, as Figure 6 .

[0073] In a preferred embodiment of the present application, as Figure 7 , 8 , the onshore omnidirectional corner reflector array device 4 includes a base frame and a multi-layer corner reflector array group installed on the base frame. Each layer of the corner reflector array group includes a plurality of corner reflectors 6 wound around the circumference of the base frame in a circle. Along the direction from the bottom to the top of the base frame, the number of corner reflectors 6 constituting each layer of the corner reflector array group decreases layer by layer; there is one corner reflector 6 provided at the top of the base frame, and the open end face of the corner reflector 6 faces away from the ground and is parallel to the ground.

[0074] In this embodiment, as Figure 9 , each submarine metal decoy is configured with two floating omnidirectional corner reflector array devices 5, and the two floating omnidirectional corner reflector array devices 5 are arranged opposite to each other along the central axis direction of the submarine metal decoy. One floating omnidirectional corner reflector array device 5 is close to the head of the submarine metal decoy, and the other floating omnidirectional corner reflector array device 5 is close to the tail of the submarine metal decoy.

[0075] In a preferred embodiment of the present application, a floating omnidirectional corner reflector device 5 includes a floating seat and a vertical mounting rod arranged on the upper surface of the floating seat, and a plurality of omnidirectional corner reflector groups are arranged on the vertical mounting rod from bottom to top, each omnidirectional corner reflector includes eight corner reflectors 6, and the eight corner reflectors 6 are closely arranged to form a regular octahedron structure.

[0076] The corner reflector 6 used in the present application is an existing product, which can reflect the incident light or signal back to the original direction. The corner reflector is usually composed of three mutually perpendicular planes to form a three-dimensional structure similar to an L shape. This design ensures that no matter what the angle of the incident light is, the reflected light can always return along the incident direction.

[0077] Therefore, the submarine metal decoy provided in this embodiment has full-size and multi-target characteristics, including shape, size, structure, material, temperature (infrared target characteristics) and radar target characteristics, which can greatly improve the concealment of the real target submarine in the berthed state. This application not only solves the full-size preparation problem of the hull above the surface of the submarine decoy target, but also realizes the enhancement of the radar wave target characteristic effect of the submarine decoy target, as well as the simulation of the infrared target characteristic effect, which greatly improves the camouflage effect of the submarine in the berthed state and effectively meets the concealment application requirements of the berthed state.

[0078] Embodiment 3

[0079] This embodiment provides a method for making a full-scale multi-target submarine metal decoy target, comprising the following steps:

[0080] S1: A chassis 1 of a submarine metal false target is made according to the shape and size of the waterline contour of the real target in the berthing state;

[0081] S2: Build a keel structure 2 on the chassis 1 according to the shape and size of the part of the real target exposed above the water surface in the berthing state, install a fuel injection heating device in the gap of the keel structure 2, and then weld the skin 3 to the keel structure 2;

[0082] S3: Spray a coating with the same color as the real target on the outer surface of skin 3 to produce a submarine metal false target.

[0083] The chassis 1 in the above step S1 preferably adopts a floating bridge splicing structure, steel structure reinforcement parts are arranged around and on the bottom of the chassis 1, and a plurality of hidden towing devices are arranged around the chassis 1.

[0084] In the above step S2, high-strength and corrosion-resistant high-quality steel is selected for the keel. Since there are various shape dimensions of the real target submarine, when making the corresponding false target, the keel structure 2 needs to be made corresponding to the shape dimensions of the real target. The size and radian of each keel (i.e., the curved beam 21, the connecting vertical beam 22, and the supporting beam 23) that makes up the keel structure 2 are different. When making, each group of keels needs to be designed separately according to the specific structural shape. When designing, the overall structural layout and force conditions of the submarine need to be fully considered. The cross-sectional shape and size of the keel need to be accurately calculated and optimized to meet the requirements of strength and stability.

[0085] In the above step S3, the skin 3 is made of lightweight and high-strength metal materials, such as aluminum alloy, titanium alloy, magnesium alloy, or stainless steel, etc. To ensure the flatness of the appearance, the skin 3 is constructed using a welding process. After the construction of the skin 3 is completed, a coating similar to the target color is applied overall, including detailed beautification, etc.

[0086] Considering the subsequent deployment and installation work, an onshore omnidirectional corner reflector array device 4 and a floating omnidirectional corner reflector array device 5 also need to be configured for the submarine metal false target, where: the onshore omnidirectional corner reflector array device 4 includes a base frame and a multi-layer corner reflector array group installed on the base frame. Each layer of the corner reflector array group includes a plurality of corner reflectors 6 wound around the circumference of the base frame in a circle. Along the direction from the bottom to the top of the base frame, the number of corner reflectors 6 that make up each layer of the corner reflector array group decreases layer by layer; there is a corner reflector 6 provided at the top of the base frame, and the open end face of the corner reflector 6 faces away from the ground and is parallel to the ground. In the specific installation and application process, the staff can set the number and specific installation angle of the corner reflectors 6 of each layer of the corner reflector array group according to needs, as long as the final debugging can achieve omnidirectional radar cross-section coverage. The corner reflector 6 used in this application is an existing product. The above-mentioned floating omnidirectional corner reflector array device 5 includes a floating seat and a vertical installation rod provided on the upper surface of the floating seat. Two omnidirectional corner reflector array groups are provided on the vertical installation rod from bottom to top. Each omnidirectional corner reflector array includes eight corner reflectors 6, and the eight corner reflectors 6 are closely arranged to form a regular octahedron structure, achieving omnidirectional radar cross-section coverage.

[0087] Embodiment 4

[0088] This embodiment provides a deployment method for a full-size multi-target characteristic submarine metal false target, including the following steps:

[0089] L1: Dock the submarine metal false target at the target dock;

[0090] L2: Set three onshore omnidirectional corner reflector array devices 4 at the edge of the target dock. The three onshore omnidirectional corner reflector array devices 4 are respectively close to the head, middle, and tail of the submarine metal false target;

[0091] L3: A floating omnidirectional corner reflector array device 5 is provided at the head of the submarine metal decoy, and a floating omnidirectional corner reflector array device 5 is provided at the tail of the submarine metal decoy. The two floating omnidirectional corner reflector array devices 5 are respectively connected to the submarine metal decoy.

[0092] In the above step L1, a fuel injection heating device is provided inside the submarine metal decoy docked at the target dock.

[0093] In the above steps L2 and L3, omnidirectional corner reflector arrays are used to enhance the radar wave target characteristics of the decoy. Each submarine decoy uses 3 sets of shore-based omnidirectional corner reflector arrays, which are erected closely along the edge of the target dock. One set is erected at the head, middle (near the island), and tail of the target respectively; each target uses 2 sets of floating omnidirectional corner reflector arrays, and one set is arranged at the front and back along the central axis of the target, as Figure 6 .

[0094] In summary, the present application provides a submarine metal decoy with full-size multi-target characteristics and its manufacturing and deployment methods. The decoy is composed of a chassis, a keel structure, and a skin. The shape and size of the decoy are based on the structural dimensions of the exposed part of the real target in the moored state, and it is a simulation structure of the real target. In particular, the present application provides a fuel injection heating device inside the structure of the decoy, and the decoy can be heated up through this fuel injection heating device to simulate the actual temperature of the real target; in addition, the present application also configures a shore-based omnidirectional corner reflector array device and a floating omnidirectional corner reflector array device for the submarine metal decoy. By setting these two omnidirectional corner reflector array devices, the radar wave target characteristics of the decoy are enhanced, and the camouflage effect is further improved; therefore, the submarine metal decoy provided by the present application uses a metal material, simulates the structural form of the exposed part of the real target in the moored state, and simulates the actual temperature of the real target through internal heating, and enhances the radar wave target characteristics of the decoy through the deployment and configuration of omnidirectional corner reflector arrays, so as to maintain consistency with the real target in terms of multiple target characteristics such as shape, size, structure, material, temperature (infrared target characteristics), and radar wave target characteristics, and provide cover for the real target submarine in the moored state.

[0095] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly described should also be considered to be within the scope described in this specification.

[0096] In the foregoing, the present application has been described in a relatively specific and detailed manner through general descriptions and specific embodiments. It should be understood that based on the technical concept of the present application, several conventional adjustments or further innovations can also be made to these specific embodiments; however, as long as they do not depart from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.

Claims

1. A submarine metal decoy with full-size and multi-target characteristics, characterized in that It includes a chassis, a keel structure and a skin. The chassis is a spliced plate-like structural member, and the shape and size of the chassis are respectively the same as the shape and size of the draft line contour of the real target in the berthing state; the keel structure is installed above the chassis, and the keel structure is composed of several steel beams. The skin is welded and fixed on the surface of the keel structure facing away from the chassis. The keel structure is used to support the skin and form a simulation structure with the same structure as the part of the real target exposed above the water surface in the berthing state together with the skin. A coating with the same color as the real target is provided on the surface of the skin; a fuel injection heating device is provided in the space surrounded by the skin and the chassis; It further includes a shore-based omnidirectional angle reflection array device. The shore-based omnidirectional angle reflection array device is arranged at the edge of the dock where the submarine metal false target berths. One shore-based omnidirectional angle reflection array device is respectively arranged at positions close to the head, middle and tail of the submarine metal false target; Each submarine metal false target is configured with two floating omnidirectional angle reflection array devices. The two floating omnidirectional angle reflection array devices are arranged oppositely along the central axis direction of the submarine metal false target. One floating omnidirectional angle reflection array device is close to the head of the submarine metal false target, and the other floating omnidirectional angle reflection array device is close to the tail of the submarine metal false target; The shore-based omnidirectional angle reflection array device includes a base frame and a multi-layer corner reflector array group installed on the base frame. Each layer of the corner reflector array group includes a plurality of corner reflectors wound around the circumference of the base frame in a circle. Along the direction from the bottom to the top of the base frame, the number of corner reflectors forming each layer of the corner reflector array group decreases layer by layer; there is one corner reflector arranged at the top of the base frame, and the open end face of the corner reflector faces away from the ground and is parallel to the ground; The floating omnidirectional angle reflection array device includes a floating seat and a vertical mounting rod arranged on the upper surface of the floating seat. A plurality of omnidirectional angle reflection array groups are arranged on the vertical mounting rod from bottom to top. Each omnidirectional angle reflection array group includes eight corner reflectors, and the eight corner reflectors are closely arranged to form a regular octahedron structure.

2. The full-size multi-target characteristic submarine metal decoy according to claim 1, characterized in that, The chassis includes a plurality of floating bridge modules. The plurality of floating bridge modules are arranged in a grid pattern on the same horizontal plane. Any two adjacent floating bridge modules are tightly connected by a connecting piece. Steel structure reinforcement members are provided on the periphery and bottom surface of the chassis; Six hidden dragging devices are provided on the periphery of the chassis. One hidden dragging device is respectively arranged at both ends of the chassis along its length direction, and two hidden dragging devices are respectively arranged at both ends of the chassis along its width direction. The movement of the submarine metal false target is realized through the hidden dragging devices; The hidden dragging device includes a connecting seat fixed on the steel structure reinforcement member around the chassis and a dragging rope arranged on the connecting seat.

3. The submarine metal decoy with full-size multi-object characteristics according to claim 1, characterized in that, The keel structure is composed of multiple curved beam crossbars, multiple connecting vertical beams, and multiple support beams to form a frame structure. The multiple curved beam crossbars are arranged parallel to each other at intervals along the length direction of the chassis. The multiple connecting vertical beams are arranged parallel to each other at intervals along the width direction of the chassis. Each connecting vertical beam is fixedly welded to the multiple curved beam crossbars. The support beams are installed below the curved beam crossbars and fixedly connected to the chassis. The outer edge of the bottom of the keel structure is adaptively connected to the outer edge of the chassis.

4. The full-scale multi-target characteristic submarine metal decoy according to claim 1, wherein A power device, a driving device, and a control device are installed on the chassis; The power device includes a generator and a battery pack; The driving device includes an electric motor and a traveling and steering control mechanism. The electric motor is electrically connected to the output end of the generator and the battery pack respectively. The traveling and steering control mechanism includes a steering gear of the operating mechanism, a transmission component, and a rudder blade. The steering gear of the operating mechanism is signal-connected to the electric motor. The transmission component includes a first gear installed on the output shaft of the electric motor. A second gear meshing with the first gear is arranged on the rudder blade. The steering gear of the operating mechanism is signal-connected to the control device and can control the rotation of the electric motor according to the signal received by the control device, thereby driving the rudder blade to swing; The control device includes a processor and a sensor module signal-connected to the processor. The sensor module includes a GPS, a gyroscope, and a speed sensor. The processor outputs an instruction signal to the steering gear of the operating mechanism according to the sensing signal received from the sensor module.

5. The submarine metal decoy with full-size multi-object characteristics according to claim 1, characterized in that, The material of the skin is aluminum alloy, titanium alloy, magnesium alloy, or stainless steel; The fuel injection heating device includes a fuel tank, a fuel pump, an injector, an igniter, a combustion chamber, a temperature sensor, and a controller. The fuel pump is used to pump the fuel in the fuel tank to the injector. The injector is used to inject the fuel into the combustion chamber. The igniter is used to ignite the fuel injected into the combustion chamber. The temperature sensor is used to monitor the temperature inside the submarine metal decoy in real time. The internal temperature reference value of the real target is stored in the controller. The controller can send a control signal for controlling the start and stop of the injector action to the injector according to the internal temperature reference value and the temperature signal obtained from the temperature sensor.

6. A manufacturing method of a submarine metal dummy target with full-size multi-objective characteristics as described in claim 1, characterized in that, It includes the following steps: S1: Fabricate the chassis of the submarine metal decoy according to the shape and size of the waterline contour of the real target in the berthing state; S2: Build a keel structure on the chassis according to the shape and size of the part of the real target exposed above the water surface in the berthing state, install a fuel injection heating device in the gap of the keel structure, and then weld the skin to the keel structure; S3: Spray a coating with the same color as the real target on the outer surface of the skin.

7. The manufacturing method of the submarine metal decoy with full-size multi-target characteristics according to claim 6, characterized in that, The chassis in step S1 adopts a floating bridge splicing structure. Steel structure reinforcement members are arranged around and on the bottom surface of the chassis. A plurality of hidden dragging devices are arranged around the chassis.

8. A deployment method for a submarine metal decoy with full-size multi-objective characteristics as described in claim 1, characterized in that, It includes the following steps: L1: Dock the submarine metal decoy at the target dock; L2: Set three of the shore-based omnidirectional angle reflection array devices at the edge of the target dock, and the three shore-based omnidirectional angle reflection array devices are respectively close to the head, middle, and tail of the submarine metal dummy target; L3: Set a floating omnidirectional angle reflection array device at the head of the submarine metal dummy target, and set a floating omnidirectional angle reflection array device at the tail of the submarine metal dummy target, and the two floating omnidirectional angle reflection array devices are respectively connected to the submarine metal dummy target.

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