Phased array radar optical calibration instrument erecting device

Abstract

The invention relates to a phased array radar optical calibration instrument erecting device. Comprising a base assembly which comprises a base and a substrate, and the substrate is arranged in the base; wherein the base assembly is used for installing a radar array surface; the plurality of pre-tightening assemblies are respectively arranged on the base and are used for fixing the substrate on the base, so that when the base assembly is mounted on a radar array surface, the substrate is tightly attached to the end surface of a radiator of the radar array surface; the rotary assembly is arranged on the base plate, and the rotary assembly can rotate on the horizontal plane of the base plate; the extension arm is connected with the rotary assembly, so that when the rotary assembly rotates, the extension arm can rotate along with the rotary assembly; the mounting assembly comprises a connecting plate and a mounting plate; the connecting plate comprises a horizontal plate and an inclined plate, the horizontal plate is connected with the inclined plate, and the horizontal plate is vertically connected with the mounting plate. According to the invention, the optical axis of the optical calibration instrument is consistent with the radar array plane mechanical method phase axis, and the pointing precision of the radar beam main lobe is calibrated.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of radar technology, and in particular to a device for setting up an optical calibration instrument for a phased array radar. Background Art

[0002] With the high degree of informatization in modern warfare, the defense and detection of any type of aircraft plays a vital role on the battlefield. In recent years, the performance of aircraft has been greatly improved, and its maneuverability and suddenness have caused huge losses to ground equipment. As a weapon for defense and pre-detection of flying targets, one of the main tasks of radar is to measure the coordinate position of the target. The continuous upgrading of aircraft has put forward higher requirements for the radar's search, tracking capabilities and measurement accuracy. In order to improve the measurement accuracy of radar detection targets, the radar must provide its own attitude accuracy, so it is necessary to accurately measure the radiation surface normal state parameters of the radar array to ensure the consistency of the zero-point pointing between the array mechanical axis and the radiation main lobe. Therefore, the radar antenna array must be well calibrated to provide an accurate benchmark for the target parameters detected by the radar.

[0003] In related technologies, in order to enable the radar to provide precise attitude accuracy and ensure the accuracy and reliability of test data, the radar must be calibrated regularly to ensure the consistency of the radar's photoelectric axis. The method currently widely used for calibration is to use the method of setting up multiple theodolites for calibration. The setting up method is time-consuming and difficult to operate, and the efficiency of radar calibration is low. Therefore, the operation process and difficulty of radar calibration need to be optimized to improve the efficiency, accuracy and operability of calibration.

[0004] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] The purpose of the embodiments of the present application is to provide a phased array radar optical calibration instrument installation device, thereby overcoming one or more problems caused by the limitations and defects of the relevant technology at least to a certain extent.

[0007] According to an embodiment of the present application, a phased array radar optical calibration instrument installation device is provided, the device comprising:

[0008] A base assembly, comprising a base and a substrate, wherein the substrate is arranged in the base; wherein the base assembly is used to install a radar array surface;

[0009] If there are clamping components, they are respectively arranged on the base, and are used to fix the substrate to the base, so that when the base component is installed on the radar array, the substrate is in close contact with the radiator end face of the radar array;

[0010] A rotary assembly is arranged on the base plate, and the rotary assembly can rotate on a horizontal plane of the base plate;

[0011] An extension arm connected to the rotating assembly so that when the rotating assembly rotates, the extension arm can rotate with the rotating assembly;

[0012] The mounting assembly comprises a connecting plate and a mounting plate; the connecting plate comprises a horizontal plate and an inclined plate, the horizontal plate is connected to the inclined plate, and the horizontal plate is vertically connected to the mounting plate, and the bottom of the horizontal plate or the bottom of the inclined plate is connected to the extension arm; wherein the mounting plate is used to mount an optical calibration instrument, the angle between the plane where the mounting plate is located and the plane where the extension arm is located is equal to the angle between the working surface of the radar array and the horizontal ground, and the angle between the plane where the mounting plate is located and the plane where the extension arm is located can be adjusted by connecting the bottom of the horizontal plate or the bottom of the inclined plate to the extension arm.

[0013] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0014] In the embodiment of the present application, through the above-mentioned device, when the mounting device is installed on the radar array, the substrate can be tightly attached to the radiator end face of the radar array through the pre-tightening assembly; through the connecting plate and the mounting plate in the mounting assembly, the optical calibration instrument can be installed on the mounting plate, and the connecting plate includes a horizontal plate and an inclined plate, which is connected to the extension arm through the bottom of the horizontal plate or the bottom of the inclined plate, and the angle between the plane where the mounting plate is located and the plane where the extension arm is located can be adjusted to ensure that the optical axis of the optical calibration instrument is consistent with the mechanical normal phase axis of the radar array, thereby calibrating the pointing accuracy of the main lobe of the radar beam. The mounting device is simple to operate, which not only simplifies the calibration procedure, reduces the difficulty of operation and time cost, but also simplifies the connection method between the mounting device and the radar array, and improves the calibration accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1A schematic structural diagram of a phased array radar optical calibration instrument installation device in an exemplary embodiment of the present application is shown;

[0017] Figure 2 A schematic diagram showing the structure of an extension arm in an exemplary embodiment of the present application is shown;

[0018] Figure 3 A schematic diagram showing the structure of the installation assembly in an exemplary embodiment of the present application is shown;

[0019] Figure 4 A schematic diagram showing the structure of a pre-tightening assembly in an exemplary embodiment of the present application is shown;

[0020] Figure 5 A schematic diagram showing the structure of a swivel arm in an exemplary embodiment of the present application from one viewing angle;

[0021] Figure 6 A schematic structural diagram showing another viewing angle of the swivel arm in an exemplary embodiment of the present application;

[0022] Figure 7 A schematic diagram showing the structure of a base plate and a cylinder in an exemplary embodiment of the present application is shown;

[0023] Figure 8 A schematic diagram showing the structure of a third fastener in an exemplary embodiment of the present application is shown;

[0024] Fig. 9 An exploded view of a phased array radar optical calibration instrument installation device in an exemplary embodiment of the present application is shown;

[0025] Fig.10 A front view showing a mounting device equipped with an optical calibration instrument in an exemplary embodiment of the present application installed on a radar array;

[0026] Fig.11 A left side view showing a mounting device equipped with an optical calibration instrument in an exemplary embodiment of the present application installed on a radar array;

[0027] Fig.12 A schematic diagram showing an exemplary embodiment of the present application in which the extension arm is not extended;

[0028] Fig.13 A schematic diagram showing an exemplary embodiment of the present application in which the extension arm is extended;

[0029] Fig.14 A front view showing the rotation of the extension arm in an exemplary embodiment of the present application;

[0030] Fig.15 A left side view showing the rotation of the extension arm in an exemplary embodiment of the present application;

[0031] Fig.16A front view showing an axis of an optical calibration instrument perpendicular to a radar array in an exemplary embodiment of the present application;

[0032] Fig.17 A left side view showing the axis of the optical calibration instrument in the exemplary embodiment of the present application is perpendicular to the radar array;

[0033] Fig.18 A schematic diagram showing an application scenario in which the axis of the optical calibration instrument in the exemplary embodiment of the present application is perpendicular to the radar array;

[0034] Fig.19 A front view showing that the axis of the optical calibration instrument in the exemplary embodiment of the present application is not perpendicular to the radar array;

[0035] Fig. 20 A left view showing that the axis of the optical calibration instrument in the exemplary embodiment of the present application is not perpendicular to the radar array;

[0036] Fig.21 A schematic diagram showing an application scenario in which the axis of the optical calibration instrument in the exemplary embodiment of the present application is not perpendicular to the radar array.

[0037] In the figure: 100, base assembly; 110, base; 120, base plate; 200, preload assembly; 210, preload block; 220, screw rod; 230, spring; 300, rotary assembly; 310, cylinder; 311, outer cylinder; 3111, second limit groove; 312, inner cylinder; 313, rotary bearing; 320, rotary arm; 321, second dovetail groove; 330, rotary body; 331, cylinder; 332, rotary cover; 3321, limit table; 400, extension arm; 410, first positioning groove; 4 20. Fastening screws; 500. Mounting assembly; 510. Connecting plate; 511. Horizontal plate; 5111. First limiting ball; 512. Inclined plate; 5112. Second limiting ball; 520. Mounting plate; 521. First dovetail groove; 600. First fastener; 700. Second fastener; 710. Bolt; 720. End cover; 730. Nut; 800. Third fastener; 900. Radar array; 910. Preset threaded hole; 920. Radiator; 1000. Angle table; 2000. Optical calibration instrument. DETAILED DESCRIPTION

[0038] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0039] In addition, the accompanying drawings are only schematic illustrations of the embodiments of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar parts, and their repeated descriptions will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0040] In this example implementation, a phased array radar optical calibration instrument installation device is first provided. Figure 1 , Fig.10 and Fig.11 As shown in , the device may include: a base assembly 100, a plurality of pre-tightening assemblies 200, a rotating assembly 300, an extension arm 400 and a mounting assembly 500. The base assembly 100 includes a base 110 and a substrate 120, and the substrate 120 is arranged in the base 110; wherein the base assembly 100 is used to install the radar array 900. If the clamping assembly 200 is respectively arranged on the base 110, it is used to fix the substrate 120 to the base 110, so that when the base assembly 100 is installed on the radar array 900, the substrate 120 is in close contact with the end surface of the radiator 2200 of the radar array 900; the rotating assembly 300 is arranged on the substrate 120, and the rotating assembly 300 can rotate on the horizontal plane of the substrate 120; the extension arm 400 is connected to the rotating assembly 300, so that when the rotating assembly 300 rotates, the extension arm 400 can rotate with the rotating assembly 300; the installation assembly 500 includes a connecting plate 510 and a mounting plate 520; the connecting plate 51 0 includes a horizontal plate 511 and an inclined plate 512, the horizontal plate 511 is connected to the inclined plate 512, and the horizontal plate 511 is vertically connected to the mounting plate 520, and the bottom of the horizontal plate 511 or the bottom of the inclined plate 512 is connected to the extension arm 400; wherein the mounting plate 520 is used to install the optical calibration instrument 2000, and the angle between the plane where the mounting plate 520 is located and the plane where the extension arm 400 is located is equal to the angle between the working surface of the radar array 900 and the horizontal ground, and the angle between the plane where the mounting plate 520 is located and the plane where the extension arm 400 is located can be adjusted by connecting the bottom of the horizontal plate 511 or the bottom of the inclined plate 512 to the extension arm 400.

[0041] It is understood that the base 110 in the present application includes a first base frame and a second base frame which are arranged opposite to each other on the left and right sides, and the substrate 120 is arranged in a space formed by the first base frame and the second base frame. Such an arrangement can facilitate the installation of the substrate 120 in the base 110. The rotating assembly 300 is arranged on the substrate 120, and the extension arm 400 is connected to the rotating assembly 300. When the rotating assembly 300 rotates on the horizontal plane where the substrate 120 is located, the extension arm 400 can also rotate with the rotating assembly 300.

[0042] In the present application, the mounting assembly 500 is arranged on the extension arm 400, so that when the extension arm 400 rotates with the rotating assembly 300, the mounting assembly 500 also rotates together. The specific manner in which the mounting assembly 500 is arranged on the extension arm 400 in the present application is as follows:

[0043] The mounting assembly 500 in the present application includes a connecting plate 510 and a mounting plate 520, wherein the connecting plate 510 includes a horizontal plate 511 and an inclined plate 512, wherein the horizontal plate 511 is connected to the inclined plate 512, and the horizontal plate 511 is vertically connected to the mounting plate 520. When the mounting assembly 500 is set on the extension arm 400 in the present application, it is mainly connected to the extension arm 400 through the bottom of the horizontal plate 511 or the bottom of the inclined plate 512. And since the angle between the plane where the mounting plate 520 is located and the plane where the extension arm 400 is located is equal to the angle between the working surface of the radar array 900 and the horizontal ground. When connected to the extension arm 400 through the bottom of the horizontal plate 511, the plane where the mounting plate 520 is located is perpendicular to the plane where the extension arm 400 is located; when connected to the extension arm 400 through the bottom of the inclined plate 512, the plane where the mounting plate 520 is located is not perpendicular to the plane where the extension arm 400 is located. Therefore, when the mounting plate 520 is installed on the extension arm 400 through the bottom of the horizontal plate 511 or the bottom of the inclined plate 512, the angle between the plane where the mounting plate 520 is located and the plane where the extension arm 400 is located can be adjusted. Since the mounting plate 520 is used to install the optical calibration instrument 2000, after the angle between the plane where the mounting plate 520 is located and the plane where the extension arm 400 is located is adjusted, the angle between the optical calibration instrument 2000 installed thereon and the plane where the extension arm 400 is located is also adjusted. Therefore, by adjusting the angle between the mounting plate 520 and the plane where the extension arm 400 is located, the angle between the optical calibration instrument 2000 and the plane where the extension arm 400 is located can be adjusted to ensure that the optical axis of the optical calibration instrument 2000 is consistent with the mechanical normal phase axis of the radar array 900, thereby calibrating the pointing accuracy of the main lobe of the radar beam.

[0044] When the mounting device needs to be installed on the radar array 900, the base plate 120 can be closely attached to the end face of the radiator 2200 of the radar array 900 through the pre-tightening components 200 on the base 110 to ensure that the mechanical normal axis of the radar array 900 is consistent with the optical axis of the optical calibration instrument 2000. By rotating the rotating component 300 to different positions, the extension arm 400 and the mounting plate 520 also rotate to different positions, so that the optical calibration instrument 2000 can be placed in different positions, and the target can be observed from different positions through the optical calibration instrument 2000. In addition, when the rotating assembly 300 rotates to different positions, it can also correct the electric axis angle of the radar array 900 through multi-point feedback from targets at different heights. Therefore, the mounting device in the present application can not only ensure that the mechanical normal axis of the radar array 900 is consistent with the axis of the optical calibration instrument 2000, but also optically observe the target at different positions, thereby avoiding the difficulty of calibration of the radar array 900 due to the complex structure and appearance. At the same time, the implementation of multi-point calibration improves the radar accuracy.

[0045] It should be noted that in the present application, the connecting plate 510 can rotate on the plane where the extension arm 400 is located, so as to realize the rotation of the mounting plate 520, thereby realizing optical observation of the target from different angles. The optical calibration instrument 2000 can be a calibration mirror.

[0046] In the embodiment of the present application, through the above device, when the mounting device is installed on the radar array 900, the pre-tightening component 200 can make the substrate 120 close to the end face of the radiator 2200 of the radar array 900; through the connecting plate 510 and the mounting plate 520 in the mounting component 500, the optical calibration instrument 2000 can be installed on the mounting plate 520, and the connecting plate 510 includes a horizontal plate 511 and an inclined plate 512. By adjusting the angle between the plane where the inclined plate 512 is located and the horizontal plane, the angle between the plane where the mounting plate 520 is located and the horizontal plane can be adjusted to ensure that the optical axis of the optical calibration instrument 2000 is consistent with the mechanical normal phase axis of the radar array 900, thereby calibrating the pointing accuracy of the main lobe of the radar beam. The mounting device is simple to operate, which not only simplifies the calibration procedure, reduces the difficulty of operation and time cost, but also simplifies the connection method between the mounting device and the radar array 900, and improves the calibration accuracy.

[0047] Next, we will refer to Figures 1 to 21 The various parts of the installation device of the phased array radar optical calibration instrument 2000 in this example implementation are described in more detail.

[0048] In one embodiment, Figure 1 As shown, the device also includes:

[0049] The first fastener 600 is used to fix the connecting plate 510 and the extension arm 400 .

[0050] It should be understood that the first fastener 600 can be an angle adjustment screw. When the connecting plate 510 and the extension arm 400 are fixed by the angle adjustment screw, it is also necessary to open a corresponding first mounting hole at the center position of the connecting plate 510 (that is, the center position where the horizontal plate 511 and the inclined plate 512 contact), and to open a corresponding second mounting hole on the extension arm 400, so that the angle adjustment screw can pass through the first mounting hole and the second mounting hole in sequence to fix the connecting plate 510 and the extension arm 400.

[0051] In one embodiment, Figure 2 and Figure 3 As shown, the device also includes:

[0052] Two first limiting balls 5111 are respectively arranged on the horizontal plate 511 close to the surface of the extension arm 400;

[0053] Two second limiting balls 5112 are respectively arranged on the inclined plate 512 close to the surface of the extension arm 400; wherein the distance between the two second limiting balls 5112 is equal to the distance between the two first limiting balls 5111;

[0054] Four first positioning grooves 410 are respectively arranged on the extension arm 400; wherein each first positioning groove 410 matches the first limiting ball 5111 and the second limiting ball 5112; the distance between adjacent first limiting grooves is equal to the distance between the two first limiting balls 5111 and the distance between the two second limiting balls 5112.

[0055] It should be understood that the two first limiting balls 5111 on the horizontal plate 511 match the corresponding first positioning grooves 410 on the extension arm 400, so that the connection between the connecting plate 510 and the extension arm 400 is achieved through the horizontal plate 511; the two second limiting balls 5112 on the inclined plate 512 match the corresponding first positioning grooves 410 on the extension arm 400, so that the connection between the connecting plate 510 and the extension arm 400 is achieved through the inclined plate 512.

[0056] It should be noted that the connecting plate 510 in the present application can be rotated on the plane where the extension arm 400 is located. When it is necessary to optically observe the target from different angles, if it is necessary to rotate the connecting plate 510 to 90°, at this time, the two first limiting balls 5111 on the horizontal plate 511 can still fall into the corresponding first positioning grooves 410 on the extension arm 400, so that the connection between the connecting plate 510 and the extension arm 400 can be achieved through the horizontal plate 511; or, the two second limiting balls 5112 on the inclined plate 512 can fall into the corresponding first positioning grooves 410 on the extension arm 400, so that the connection between the connecting plate 510 and the extension arm 400 can be achieved through the inclined plate 512. Whether to connect with the extension arm 400 through the horizontal plate 511 or the inclined plate 512 can be selected according to actual conditions, and this application does not limit this.

[0057] like Fig.19 , Fig. 20 and Fig.21 As shown, if the target height is limited, the angle adjustment screw on the connecting plate 510 can be loosened, and the connecting plate 510 can be adjusted so that the plane of the horizontal plate 511 that is consistent with the angle of the working surface of the radar array face 900 is in contact with the extension arm 400, or the plane of the inclined plate 512 that is consistent with the angle of the working surface of the radar array face 900 is in contact with the extension arm 400. The first limiting ball 5111 or the second limiting ball 5112 of the connecting plate 510 falls into the corresponding first limiting groove, which can ensure that the axis of the optical calibration instrument 2000 is horizontal.

[0058] like Fig.14 and Fig.15 As shown, if the radar array 900 is affected by other equipment below the radar array 900 and can only be observed from the side, the rotating device can be used to rotate to the corresponding position, and the angle adjustment screw can also be loosened, and the connecting plate 510 can be rotated 90°, so that the first limiting ball 5111 on the horizontal plate 511 in the connecting plate 510 falls into the corresponding first limiting groove on the extension arm 400, so as to achieve multi-point observation through the optical calibration instrument 2000. Alternatively, the second limiting ball 5112 on the inclined plate 512 in the connecting plate 510 falls into the corresponding first limiting groove on the extension arm 400, so as to achieve multi-point observation through the optical calibration instrument 2000.

[0059] In one embodiment, Figure 3 As shown, first dovetail grooves 521 are provided on the left and right sides of the mounting plate 520 , and the first dovetail grooves 521 are used to clamp the optical calibration instrument 2000 .

[0060] It should be understood that by providing a first dovetail groove 521 on each of the left and right sides of the mounting plate 520 , the optical calibration instrument 2000 can be better mounted on the mounting plate 520 .

[0061] Furthermore, the first dovetail groove 521 includes stop blocks, which are arranged on the left and right sides of the mounting plate 520. Fastening screws 420 are arranged on the outer side walls of the stop blocks. When the optical calibration instrument 2000 is mounted on the mounting plate 520, the optical calibration instrument 2000 is generally mounted on the mounting plate 520 together with its corresponding base. After the base of the optical calibration instrument 2000 is matched with the first dovetail groove 521 by fastening screws 420, movement is prevented, and reliable connection is ensured, thereby improving the accuracy of the optical calibration instrument 2000.

[0062] It should be noted that the mounting device of the present application, the base of the optical calibration instrument 2000 used in the reference transmission can be a wedge-shaped base, the wedge-shaped base and the first dovetail groove 521 are assembled with each other, the connection is reliable, the precision is higher, the error can be reduced, the use environment is more flexible, the target can be observed at multiple points, and it is not limited to the specific use state and the design layout of the radar structure; and the operation is simple, easy to disassemble and assemble, convenient to store, and not easy to damage. This makes the mounting device easy to store and transport, the flexibility is greatly improved, the safety is higher, and the problems of non-disassembly, bulkiness and difficulty in mounting of traditional mounting devices are avoided.

[0063] In one embodiment, Figure 1 , Figure 5 , Figure 6 , Figure 7 and Fig. 9 As shown, the swivel assembly 300 includes:

[0064] The cylinder 310 includes an inner cylinder 312, an outer cylinder 311 and a slewing bearing 313 which are arranged concentrically;

[0065] The inner cylinder 312 is disposed on the base plate 120, and the outer cylinder 311 is disposed outside the inner cylinder 312; wherein a second limiting groove 3111 is disposed along the top circumference of the outer cylinder 311;

[0066] The slewing bearing 313 is disposed in the inner cylinder 312, and the outer ring of the slewing bearing 313 is connected to the inner cylinder 312;

[0067] Rotating arm 320;

[0068] The rotating body 330 includes: a cylinder 331 and a rotating cover 332. One end of the cylinder 331 is connected to the rotating arm 320, and the other end of the cylinder 331 is clamped in the inner ring of the rotating bearing 313.

[0069] The rotating cover body 332 is arranged on the circumferential outer side of the cylinder 331 and is connected to the rotating arm 320. A limit platform 3321 is arranged on the circumference of its inner wall. The limit platform 3321 can move along the limit groove so that the rotating body 330 can rotate within 0 to 90 degrees in the horizontal plane of the substrate 120.

[0070] It should be understood and explained that the rotating cover body 332 is designed as an integral unit with the rotating arm 320, the outer cylinder body 311 is designed as an integral unit with the substrate 120, the inner cylinder body 312 is arranged inside the outer cylinder body 311, and the rotating bearing 313 is adopted in the inner cylinder body 312 to perform azimuth rotation to adjust the observation at different positions, and a limit platform 3321 is arranged around the inner circle of the rotating cover body 332, and a second limit groove 3111 is also arranged around the outer circle of the outer cylinder body 311, the second limit groove 3111 matches the limit platform 3321, and the limit platform 3321 can reciprocate in the limit groove, so that the rotating body 330 can rotate within 0 to 90° in the horizontal plane of the substrate 120, that is, the rotating body 330 can rotate within 0 to 90° in the plane of the radar array 900.

[0071] In one embodiment, Figure 5 , Figure 7 and Fig. 9 As shown, the device also includes:

[0072] The second fastener 700 is used to sequentially pass through the base plate 120, the cylinder 331, and the rotating arm 320 to lock the base plate 120 after the rotating body 330 can rotate to a preset rotating position within the horizontal plane of the base plate 120.

[0073] In one embodiment, the second fastener 700 includes: a bolt 710, an end cap 720 and a nut 730;

[0074] When the rotating body 330 can rotate to a preset rotation position in the horizontal plane of the base plate 120, the bolt 710 passes through the end cover 720, the base plate 120, the cylinder 331 and the rotating arm 320 in sequence, and a nut 730 is provided at the end thereof for locking.

[0075] It is understandable that if Fig. 9 , Fig.14 and Fig.15 As shown, when the rotating body 330 rotates to the preset rotation position, the base plate 120, the rotating body 330 and the rotating arm 320 are fixed by the second fastener 700; when the rotating body 330 needs to adjust its preset rotation position, the second fastener 700 can be loosened to adjust the preset rotation position of the rotating body 330.

[0076] Furthermore, the second fastener 700 may include a bolt 710, an end cover 720 and a nut 730. The bolt 710 passes through the end cover 720, the base plate 120, the cylinder 331 and the rotating arm 320 in sequence, and a nut 730 is set at its end for locking. When the rotating body 330 rotates to a preset rotation position, it is locked.

[0077] In one embodiment, Fig. 9 , Fig.12 and Fig.13 As shown, second dovetail grooves 321 are provided on the left and right sides of the swivel arm 320 . The second dovetail grooves 321 are used to set the extension arm 400 , and the extension arm 400 can move along the second dovetail grooves 321 .

[0078] It is understandable that a track is formed between the two second dovetail grooves 321 to enable the extension arm 400 to move. Therefore, the extension arm 400 can move along the two second dovetail grooves 321 to achieve the extension or contraction of the extension arm 400 relative to the rotating arm 320. When the extension arm 400 moves in a direction away from the rotating arm 320, the extension arm 400 will extend relative to the rotating arm 320; when the extension arm 400 moves in a direction close to the rotating arm 320, the extension arm 400 will contract relative to the rotating arm 320. The extension position or contraction position of the extension arm 400 relative to the rotating arm 320 can be determined according to the distance of the photoelectric target during actual calibration, and this application does not impose any limitation on this.

[0079] It should also be noted that, after the extension arm 400 moves to a preset position relative to the swivel arm 320 , the extension arm 400 and the swivel arm 320 can be fixed by tightening the screws 420 .

[0080] In one embodiment, Figure 4 As shown, the pre-tightening assembly 200 includes: a pre-tightening block 210, a screw rod 220, a spring 230, and a pre-tightening screw;

[0081] A pre-tightening block 210 is disposed on the base 110;

[0082] The screw rod 220 is arranged on the preload block 210;

[0083] The spring 230 is sleeved on the screw rod 220 after the screw rod 220 passes through the substrate 120, and the end of the spring 230 close to the substrate 120 contacts the substrate 120;

[0084] A pre-tightening screw is arranged at the end of the screw rod 220 away from the substrate 120 and contacts the spring 230; wherein, by adjusting the pre-tightening screw, the spring 230 can exert an extrusion effect on the substrate 120, so that the substrate 120 is tightly attached to the end face of the radiator 2200 of the radar array surface 900.

[0085] It is understandable that, by means of the pre-tightening assembly 200 , the substrate 120 can be closely attached to the end face of the radiator 2200 of the radar array 900 , so as to ensure that the mechanical normal axis of the radar array 900 is consistent with the optical axis of the optical calibration instrument 2000 .

[0086] Furthermore, the pre-tightening assembly 200 in the present application includes a pre-tightening block 210, a screw rod 220, a spring 230 and a pre-tightening screw. The pre-tightening block 210 is arranged at a corresponding position on the base 110, one end of the screw rod 220 is arranged in the pre-tightening block 210, and the other end of the screw rod 220 passes through the substrate 120 and extends out of the substrate 120, and then the sleeve spring 230 is sleeved on the screw rod 220 extending out of the substrate 120, and at this time, the pre-tightening screw is arranged on the screw rod 220, and the pre-tightening screw is in contact with the spring 230 away from the substrate 120. Therefore, by adjusting the pre-tightening screw, the spring 230 can be squeezed to produce a squeezing effect on the substrate 120, so that the substrate 120 is in close contact with the end face of the radiator 2200 of the radar array 900.

[0087] In one embodiment, Figure 8 As shown, it also includes:

[0088] The third fastening member 800 is disposed on the base 110 , and the third fastening member 800 can be turned toward the inner end of the base 110 so as to be accommodated.

[0089] It is understandable that the base 110 can be mounted on the radar array 900 through the third fastener 800; and when the mounting device does not need to be mounted on the radar array 900, the third fastener 800 can be turned toward the inner end of the base 110 to be stored. The number of the third fasteners 800 can be 4, which are arranged around the inner side of the base 110.

[0090] Furthermore, the third fastener 800 can be a captive screw. In the present application, the number of the captive screws can be set to 4, which are correspondingly arranged around the inner side of the base 110 and fixed to the preset threaded hole 2100 of the blade of the radar array 900 by the captive screws. When the mounting device is not needed, the captive screws can be loosened and the angle platform 1000 on which the captive screws are installed can be flipped and retracted.

[0091] It should be noted that the schematic diagram of the installation device installed on the radar array 900 in this application is as follows Fig.10 and Fig.11 As shown. After the mounting device in the present application is installed on the radar array 900, when the radar is calibrated, since there is a corresponding cabinet at the lower end of the radar array 900, the layout of the servo equipment or other equipment affects the difficulty of the optical calibration instrument to observe the target, and it is necessary to extend the observation position outside the obstacle for observation. The mounting device designed in the present application can be axially extended in the plane of the radar array 900 to avoid obstacles and facilitate personnel to observe the target. Similarly, the installation component 500 in the mounting device can be rotated 90° to transmit the reference to both sides of the radar array 900. At this time, the layout position of the optoelectronic target is also more flexible and convenient.

[0092] It should also be noted that if Figures 16 to 21 As shown, the radar itself has a specific working angle relative to the horizontal ground. When the working surface of the radar array 900 is perpendicular to the horizontal ground, the arrangement of the mounting assembly 500 designed in this application is as follows: Fig.16 , Fig.17 and Fig.18 If the working surface of the radar array 900 is not perpendicular to the horizontal ground, Fig.19 , Fig. 20 and Fig.21 As shown, the angle between the plane where the mounting plate 520 is located and the plane where the extension arm 400 is located can be adjusted through the mounting assembly 500 to adjust the angle between the working surface of the radar array 900 and the horizontal ground (i.e., the complementary angle state of the working angle of the radar array 900), so that the axis of the optical calibration instrument 2000 remains parallel to the horizontal ground, which facilitates calibration when there is no target tower.

[0093] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like in the above description indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0094] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0095] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0096] In the embodiments of the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0097] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0098] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application.

Claims

1. A phased array radar optical calibration instrument installation device, characterized in that: include: A base assembly, comprising a base and a substrate, wherein the substrate is arranged in the base; wherein the base assembly is used to install a radar array surface; If there are clamping components, they are respectively arranged on the base, and are used to fix the substrate to the base, so that when the base component is installed on the radar array, the substrate is in close contact with the radiator end face of the radar array; A rotary assembly is arranged on the base plate, and the rotary assembly can rotate on a horizontal plane of the base plate; An extension arm connected to the rotating assembly so that when the rotating assembly rotates, the extension arm can rotate with the rotating assembly; The mounting assembly comprises a connecting plate and a mounting plate; the connecting plate comprises a horizontal plate and an inclined plate, the horizontal plate is connected to the inclined plate, and the horizontal plate is vertically connected to the mounting plate, and the bottom of the horizontal plate or the bottom of the inclined plate is connected to the extension arm; wherein the mounting plate is used to mount an optical calibration instrument, the angle between the plane where the mounting plate is located and the plane where the extension arm is located is equal to the angle between the working surface of the radar array and the horizontal ground, and the angle between the plane where the mounting plate is located and the plane where the extension arm is located can be adjusted by connecting the bottom of the horizontal plate or the bottom of the inclined plate to the extension arm.

2. The phased array radar optical calibration instrument installation device according to claim 1, characterized in that: Also includes: The first fastener is used to fix the connecting plate and the extension arm.

3. The phased array radar optical calibration instrument installation device according to claim 1, characterized in that: Also includes: Two first limiting balls are respectively arranged on the horizontal plate close to the surface of the extension arm; Two second limiting balls are respectively arranged on the inclined plate close to the surface of the extension arm; wherein the distance between the two second limiting balls is equal to the distance between the two first limiting balls; Four first positioning grooves are respectively arranged on the extension arm; wherein each of the first positioning grooves matches the first limiting ball and the second limiting ball; the distance between adjacent first limiting grooves is equal to the distance between two first limiting balls and the distance between two second limiting balls.

4. The phased array radar optical calibration instrument installation device according to claim 1, characterized in that: The first dovetail grooves are arranged on the left and right sides of the mounting plate, and the first dovetail grooves are used for clamping the optical calibration instrument.

5. The phased array radar optical calibration instrument installation device according to claim 1, characterized in that: The rotary assembly comprises: The cylinder body comprises an inner cylinder body, an outer cylinder body and a slewing bearing which are arranged concentrically; The inner cylinder is arranged on the base plate, and the outer cylinder is arranged outside the inner cylinder; wherein a second limiting groove is arranged along the circumference of the top of the outer cylinder; The slewing bearing is arranged in the inner cylinder, and the outer ring of the slewing bearing is connected to the inner cylinder; Swivel arm; The rotary body comprises: a cylinder and a rotary cover, wherein one end of the cylinder is connected to the rotary arm, and the other end of the cylinder is clamped in the inner ring of the rotary bearing; The revolving cover body is arranged on the circumferential outer side of the cylinder and connected to the revolving arm. A limit platform is arranged on the circumference of the inner wall thereof. The limit platform can move along the second limit groove so that the revolving body can rotate within 0 to 90 degrees in the horizontal plane of the substrate.

6. The phased array radar optical calibration instrument installation device according to claim 5, characterized in that: Also includes: The second fastener is used to sequentially pass through the base plate, the cylinder, and the rotating arm to lock the rotating body after the rotating body can rotate to a preset rotating position in the horizontal plane of the base plate.

7. The phased array radar optical calibration instrument installation device according to claim 6, characterized in that: The second fastener comprises: a bolt, an end cover and a nut; When the rotating body can rotate to a preset rotating position in the horizontal plane of the base plate, the bolt passes through the end cover, the base plate, the cylinder and the rotating arm in sequence, and a nut is arranged at the end thereof for locking.

8. The phased array radar optical calibration instrument installation device according to claim 5, characterized in that: Second dovetail grooves are arranged on the left and right sides of the swivel arm, and the second dovetail grooves are used to arrange the extension arm, and the extension arm can move along the second dovetail grooves.

9. The phased array radar optical calibration instrument installation device according to claim 1, characterized in that: The pre-tightening assembly comprises: a pre-tightening block, a screw rod, a spring, and a pre-tightening screw; A pre-tightening block, arranged on the base; A screw rod, arranged on the preload block; A spring, when the screw rod passes through the base plate, the spring is sleeved on the screw rod, and the end of the spring close to the base plate contacts the base plate; A pre-tightening screw is arranged at the end of the screw rod away from the substrate and contacts the spring; wherein, by adjusting the pre-tightening screw, the spring can exert an extrusion effect on the substrate so that the substrate is tightly attached to the radiator end face of the radar array.

10. The phased array radar optical calibration instrument installation device according to claim 1, characterized in that: Also includes: The third fastener is arranged on the base, and the third fastener can be turned toward the inner end of the base so as to be accommodated.

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