A stepless telescopic corner reflector for helicopter target drone

Abstract

The present invention discloses a stepless telescopic corner reflector for a helicopter target drone, which relates to the technical field of helicopter target drone equipment and comprises a control panel and a reflector; the control panel is used to be arranged at the bottom of the fuselage of the helicopter target drone; the reflector is arranged on the control panel, and the control panel is used to control the raising and lowering of the reflector. By telescoping the metal plates constituting the corner reflector, the effective reflection area of ​​the corner reflector is changed, thereby changing the strength of the corner reflector's reflection effect on electromagnetic waves, that is, changing the magnitude of the target drone's increased RCS. Moreover, compared with conventional three-panel corner reflectors, the present invention has only two metal plates, and the third metal plate utilizes the metal surface of the bottom of the fuselage, which reduces the weight of the target drone mounting the corner reflector to a certain extent. By applying the present invention to a helicopter target drone, the goal of simulating a variety of armed helicopters with different RCS magnitudes can be achieved by relying on a single target drone.

Description

Technical Field

[0001] The invention relates to the technical field of helicopter target drone equipment, in particular to a stepless telescopic corner reflector used for a helicopter target drone. Background Art

[0002] Attacked helicopters play an increasingly important role on modern battlefields. Simulated enemy helicopters are key targets for our target drones during actual combat drills. For economic reasons, unmanned helicopter targets are typically designed as small helicopters with a low radar cross-section (RCS). To compensate for the RCS gap compared to simulated enemy helicopter targets, designers typically mount external devices such as Luneburg spheres or corner reflectors to increase the helicopter's RCS. Corner reflectors, also known as radar reflectors, consist of several metal plates arranged perpendicular to each other, achieving strong reflection of electromagnetic waves over a wide angular range. Corner reflectors can be placed in either fixed or suspended configurations, with the latter used on target drones being suspended. Current corner reflectors are typically fully exposed on the fuselage and comprise three metal plates. Due to the fixed size and angle of the metal plates, the RCS gain of the corner reflector is essentially fixed, making it difficult to adapt to varying RCS levels. Summary of the Invention

[0003] In order to remove the limitation of the basically fixed RCS gain effect of conventional corner reflectors, the present invention provides a stepless telescopic corner reflector for a helicopter target drone. By applying the present invention to a helicopter target drone, the goal of simulating multiple armed helicopters with different RCS magnitudes can be achieved by using a single target drone.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a stepless telescopic corner reflector for a helicopter target drone, comprising a control panel and a reflector; the control panel is used to be arranged at the bottom of the fuselage of the helicopter target drone; the reflector is arranged on the control panel, and the control panel is used to control the lifting of the reflector.

[0006] Optionally, a mounting groove is provided through the control panel, and the reflector is provided in the mounting groove.

[0007] Optionally, a plurality of slots are provided on the inner side wall of the installation groove, and a transmission wheel is provided in the slot, and the transmission wheel is used to drive the reflector to rise and fall.

[0008] Optionally, the transmission wheel is in transmission connection with the control drive mechanism.

[0009] Optionally, the control drive mechanism includes a drive motor.

[0010] Optionally, the mounting groove is a V-shaped mounting groove; the reflector is a V-shaped plate structure; and the shape of the reflector matches the shape of the V-shaped mounting groove.

[0011] Optionally, a limiting plate is provided on the top of the reflector, and the maximum outer dimension of the limiting plate is greater than the maximum outer dimension of the mounting groove.

[0012] Optionally, the control disk is a circular disk.

[0013] Compared with the prior art, the present invention has achieved the following technical effects:

[0014] The stepless telescopic corner reflector for helicopter drones of the present invention changes the effective reflection area of ​​the corner reflector by telescoping the metal plates that make up the corner reflector, thereby changing the strength of the corner reflector's reflection of electromagnetic waves, that is, changing the magnitude of the target drone's increased RCS: the larger the effective reflection area of ​​the corner reflector, the greater the increase in the target drone's RCS; the smaller the effective reflection area of ​​the corner reflector, the less the increase in the target drone's RCS. Furthermore, compared to conventional three-panel corner reflectors, the present invention only has two metal plates, and the third metal plate utilizes the metal surface of the bottom of the fuselage, which to a certain extent reduces the weight of the target drone when mounting the corner reflector. By applying the present invention to helicopter drones, it is possible to achieve the goal of using a single target drone to simulate multiple armed helicopters with different RCS magnitudes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic structural diagram of a stepless telescopic corner reflector for a helicopter target drone according to the present invention;

[0017] Figure 2 The present invention is a stepless telescopic corner reflector for helicopter target drone RCS comparison of two panels of corner reflectors with different extension amounts;

[0018] Figure 3 It is a structural diagram of a stepless telescopic corner reflector used in a stepless telescopic corner reflector for a helicopter target drone of the present invention;

[0019] Figure 4 This is a bottom view of the stepless telescopic corner reflector used for a helicopter target drone and a cross-sectional view at the pulley;

[0020] Figure 5This is a schematic diagram of a two-panel corner reflector + a transmission wheel in a stepless telescopic corner reflector for a helicopter target drone according to the present invention;

[0021] Figure 6 The figure is a structural diagram of the V-groove in the stepless telescopic corner reflector used for the helicopter target drone of the present invention.

[0022] Explanation of the accompanying symbols: 1. helicopter target drone; 2. stepless telescopic corner reflector; 3. control panel; 4. reflector; 5. V-groove; 6. transmission wheel; 7. slot. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figures 1 to 6 As shown, this embodiment provides a stepless telescopic corner reflector for a helicopter target drone, comprising a control panel 3 and a reflector 4; the control panel 3 is used to be arranged at the bottom of the fuselage of the helicopter target drone 1; the reflector 4 is arranged on the control panel 3, and the control panel 3 is used to control the raising and lowering of the reflector 4.

[0025] In this embodiment, the reflector 4 is composed of two metal plates at right angles. The exposed portion of the two-panel corner reflector 4, together with the metal lower surface of the circular control plate 3, forms a three-panel corner reflector 4 structure. Its stepless telescopic transmission allows for stepless adjustment of the exposed area, thereby varying the effective reflective area of ​​the three-panel corner reflector 4 structure, achieving varying RCS gain levels.

[0026] The control disk 3 is a circular disk, with its top and bottom surfaces extending outward circumferentially, giving it an I-shaped configuration. The circular control disk 3 positions the reflector system 4, securing it to the aircraft's belly surface. A V-shaped groove 5 is provided in the center of the control disk 3, with its two sides perpendicular to each other. A slot 7 is provided on the inner wall of the V-shaped groove 5, with the opening of the V-shaped groove 5 facing toward the aircraft's nose during installation. The width of the V-shaped groove 5 is slightly greater than the thickness of the two-panel corner reflector 4 to provide space for the two-panel corner reflector 4 to be telescopically driven. More specifically, on the inner wall of each side of the V-shaped groove 5, two slots 7 are provided near the outer side, and one slot 7 is provided near the inner side. The inner slot 7 is located between the two outer slots 7, preferably midway between the two slots 7. Thus, a transmission wheel 6 is provided in each of the three slots 7 on each side to clamp the reflector 4, allowing the transmission wheel 6 to control the telescopic range of the reflector 4, thereby achieving stepless telescopic movement.

[0027] Furthermore, in order to prevent the reflector 4 from falling from the V-shaped groove 5, a limiting plate is provided on the top of the reflector 4, and the maximum outer dimension of the limiting plate is greater than the maximum outer dimension of the installation groove.

[0028] A control drive mechanism is provided in the circular control disk 3, and the transmission wheel 6 is in transmission connection with the control drive mechanism. The control drive mechanism includes a drive motor, which is used to drive the transmission wheel 6 to rotate so as to control the rise and fall of the reflector 4.

[0029] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention, and any reference signs in the claims should not be construed as limiting the claims to which they relate.

[0030] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A stepless telescopic corner reflector for a helicopter target drone, characterized in that: It includes a control panel and a reflector; the control panel is used to be set at the bottom of the fuselage of the helicopter target; the reflector is set on the control panel, and the control panel is used to control the lifting and lowering of the reflector; the corner reflector is two metal plates at right angles, and the part of the two-panel corner reflector exposed outside the fuselage and the circular metal lower surface of the control panel together form a three-panel corner reflector structure.

2. The stepless telescopic corner reflector for helicopter target drone according to claim 1, characterized in that: The control panel is provided with a mounting groove, and the reflector is arranged in the mounting groove.

3. The stepless telescopic corner reflector for helicopter target drone according to claim 2, characterized in that: A plurality of slots are provided on the inner side wall of the installation groove, and a transmission wheel is provided in the slot. The transmission wheel is used to drive the reflector to rise and fall.

4. The stepless telescopic corner reflector for helicopter target drone according to claim 3, characterized in that: The transmission wheel is in transmission connection with the control drive mechanism.

5. The stepless telescopic corner reflector for helicopter target drone according to claim 4, characterized in that: The control drive mechanism includes a drive motor.

6. The stepless telescopic corner reflector for helicopter target drone according to claim 2, characterized in that: The mounting groove is a V-shaped mounting groove; the reflector is a V-shaped plate structure; the shape of the reflector matches the shape of the V-shaped mounting groove.

7. The stepless telescopic corner reflector for helicopter target drone according to claim 6, characterized in that: A limiting plate is provided on the top of the reflector, and the maximum outer dimension of the limiting plate is greater than the maximum outer dimension of the mounting groove.

8. The stepless telescopic corner reflector for helicopter target drone according to claim 1, characterized in that: The control disk is a circular disk.

Images