Scanning frame test system

Abstract

The utility model provides a scanning frame test system. The scanning frame test system comprises a support leg adjusting platform fixedly connected with a plurality of push rod support legs; the rotatable deflection angle adjusting table is arranged on the upper surface of the supporting leg adjusting table; the base linear module is mounted on the upper side of the deflection angle adjusting table; the tower linear module is movably mounted on the base linear module; and the probe box is vertically and movably mounted on the tower linear module. According to the technical scheme of the embodiment, plane adjustment of the supporting leg adjusting table can be achieved through stretching and retracting of different push rod supporting legs, angle adjustment is achieved through rotation of the deflection angle adjusting table, and transverse and longitudinal movement of the probe box is achieved based on the base linear module and the tower linear module. Therefore, the probe box can identify the planar antenna in any posture, and a structural basis is provided for improving the accuracy of antenna testing.

Description

Technical Field

[0001] The utility model belongs to the technical field of antenna testing devices, and in particular relates to a scanning frame testing system. Background Art

[0002] The scanning frame is the main hardware facility of the planar near-field test system. It often adopts a parallel two-axis linear motion structure, and the test probe carried by it can realize the radiation signal emission test of the phase-controlled planar antenna. The performance indicators of the scanning frame test system mainly depend on the system positioning accuracy and test efficiency.

[0003] Visual inspection of commonly used scanning frame test systems mostly uses an "inverted T" type linear motion guide with a fixed base structure, which is characterized by heavy weight, large volume, and high degree of integration; its advantages are high rigidity, strong stability, good precision, and high reliability. In practical applications, it is often necessary to adjust the placement and spatial posture of the planar antenna to match the spatial pointing of the scanning frame test probe. For large field-deployed radars such as high towers or domes, their antennas are fixed and cannot be adjusted, so the accuracy of antenna testing cannot be guaranteed using existing scanning frame test systems. Utility Model Content

[0004] The embodiment of the utility model provides a scanning frame testing system, which can adjust the scanning frame posture and provide a structural basis for improving the accuracy of antenna testing.

[0005] In a first aspect, an embodiment of the utility model provides a scanning frame testing system, comprising:

[0006] A leg adjustment platform, the lower side of which is fixedly connected with a plurality of push rod legs, and the push rod legs can be extended and retracted in the vertical direction;

[0007] A yaw angle adjustment platform, wherein the yaw angle adjustment platform is arranged on the upper surface of the leg adjustment platform, a first axis of the yaw angle adjustment platform is perpendicular to the upper surface of the leg adjustment platform, and the yaw angle adjustment platform can rotate along the first axis;

[0008] A base linear module, the base linear module is installed on the upper side of the yaw angle adjustment platform, and the second axis of the base linear module is parallel to the upper surface of the leg adjustment platform;

[0009] A tower linear module, wherein the tower linear module is movably mounted on the upper side of the base linear module, the third axis of the tower linear module is perpendicular to the upper surface of the leg adjustment platform, and the tower linear module is movable along the second axis;

[0010] A probe box is vertically and movably mounted on the tower linear module, the probe box is used to obtain detection information of the planar antenna, and the probe box can move along the direction of the third axis.

[0011] According to some embodiments of the utility model, the number of the push rod legs is 4, and the 4 push rod legs are respectively close to the 4 vertex corners of the leg adjustment platform.

[0012] According to some embodiments of the utility model, the push rod leg is a manually adjustable push rod, and the yaw angle adjustment platform is provided with a manual fine-motion platform, and the manual fine-motion platform is used to drive the yaw angle adjustment platform to rotate.

[0013] According to some embodiments of the present invention, the invention further comprises:

[0014] An industrial computer is electrically connected to the probe box.

[0015] According to some embodiments of the present invention, the invention further comprises:

[0016] A first motor, which is disposed on the push rod leg and is used to drive the push rod leg to extend and retract, and is electrically connected to the industrial control machine;

[0017] The second motor is arranged on the yaw angle adjustment platform, the second motor is used to drive the yaw angle adjustment platform to rotate, and the second motor is electrically connected to the industrial control computer.

[0018] According to some embodiments of the present invention, the invention further comprises:

[0019] A third motor, the third motor is arranged on the base linear module, the third motor is used to drive the tower linear module to move, and the third motor is electrically connected to the industrial control machine;

[0020] A fourth motor is arranged on the tower linear module, the fourth motor is used to drive the probe box to move, and the fourth motor is electrically connected to the industrial control machine.

[0021] According to some embodiments of the utility model, the base linear module is provided with a first slide parallel to the second axis, the tower linear module is installed on the first slide, and the third motor is used to drive the first slide to move; the tower linear module is provided with a second slide parallel to the third axis, the probe box is installed on the second slide, and the fourth motor is used to drive the second slide to move.

[0022] According to some embodiments of the present invention, the invention further comprises:

[0023] An inclination sensor, which is arranged on the leg adjustment platform, and is used to detect the angle between the table surface of the leg adjustment platform and the horizontal plane, and is electrically connected to the industrial control machine;

[0024] A rotation angle detection device, the rotation angle detection device is arranged on the yaw angle adjustment platform, the yaw angle adjustment platform is used to detect the rotation angle of the yaw angle adjustment platform, and the yaw angle adjustment platform is electrically connected to the industrial control machine;

[0025] A first position detection device, the first position detection device is arranged on the base linear module, the first position detection device is used to detect the current position of the tower linear module, and the first position detection device is electrically connected to the industrial computer;

[0026] The second position detection device is arranged on the tower linear module, the second position detection device is used to detect the current position of the probe box, and the second position detection device is electrically connected to the industrial computer.

[0027] According to some embodiments of the present utility model, the rotation angle detection device is an encoder, and the first position detection device and the second position detection device are both grating rulers.

[0028] According to some embodiments of the present utility model, the probe box is provided with a distance measuring sensor and a visual sensor.

[0029] An embodiment of the utility model includes: a leg adjusting platform, a plurality of push rod legs are fixedly connected to the lower side of the leg adjusting platform, and the push rod legs can be extended and retracted in the vertical direction; a yaw angle adjusting platform, the yaw angle adjusting platform is arranged on the upper surface of the leg adjusting platform, the first axis of the yaw angle adjusting platform is perpendicular to the upper surface of the leg adjusting platform, and the yaw angle adjusting platform can rotate along the first axis; a base linear module, the base linear module is installed on the upper side of the yaw angle adjusting platform, and the second axis of the base linear module is parallel to the upper surface of the leg adjusting platform; a tower linear module, the tower linear module is movably installed on the upper side of the base linear module, the third axis of the tower linear module is perpendicular to the upper surface of the leg adjusting platform, and the tower linear module can be moved along the second axis; a probe box, the probe box is vertically and movably installed on the tower linear module, the probe box is used to obtain detection information of the planar antenna, and the probe box can move along the direction of the third axis. According to the technical solution of this embodiment, the plane adjustment of the leg adjustment table can be achieved through the extension and retraction of different push rod legs, the angle adjustment can be achieved through the rotation of the yaw angle adjustment table, and the lateral and vertical movement of the probe box can be achieved based on the movement of the base linear module and the tower linear module, so that the probe box can identify the planar antenna in any posture, providing a structural basis for improving the accuracy of antenna testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of a scanning frame testing system provided by an embodiment of the utility model;

[0031] Figure 2 It is a complete structural diagram of a scanning frame testing system provided by another embodiment of the utility model. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0033] It should be noted that, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first", "target" and the like in the specification, claims or the above drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0034] The utility model provides a scanning frame test system, comprising: a leg adjustment platform, a plurality of push rod legs are fixedly connected to the lower side of the leg adjustment platform, and the push rod legs can be extended and retracted in a vertical direction; a yaw angle adjustment platform, the yaw angle adjustment platform is arranged on the upper surface of the leg adjustment platform, the first axis of the yaw angle adjustment platform is perpendicular to the upper surface of the leg adjustment platform, and the yaw angle adjustment platform can rotate along the first axis; a base linear module, the base linear module is installed on the upper side of the yaw angle adjustment platform, and the second axis of the base linear module is parallel to the upper surface of the leg adjustment platform; a tower linear module, the tower linear module is movably installed on the upper side of the base linear module, the third axis of the tower linear module is perpendicular to the upper surface of the leg adjustment platform, and the tower linear module can move along the second axis; a probe box, the probe box is vertically and movably installed on the tower linear module, the probe box is used to obtain detection information of a planar antenna, and the probe box can move in the direction of the third axis. According to the technical solution of this embodiment, the plane adjustment of the leg adjustment table can be achieved through the extension and retraction of different push rod legs, the angle adjustment can be achieved through the rotation of the yaw angle adjustment table, and the lateral and vertical movement of the probe box can be achieved based on the movement of the base linear module and the tower linear module, so that the probe box can identify the planar antenna in any posture, providing a structural basis for improving the accuracy of antenna testing.

[0035] Reference Figure 1 and Figure 2 , Figure 1 Schematic diagram of a scanning frame test system provided by an embodiment of the utility model, including:

[0036] A leg adjustment platform 10, a plurality of push rod legs 11 are fixedly connected to the lower side of the leg adjustment platform 10, and the push rod legs 11 can be extended and retracted in the vertical direction;

[0037] The yaw angle adjustment platform 20 is arranged on the upper surface of the leg adjustment platform 10, the first axis of the yaw angle adjustment platform 20 is perpendicular to the upper surface of the leg adjustment platform 10, and the yaw angle adjustment platform 20 can rotate along the first axis;

[0038] A base linear module 30, which is installed on the upper side of the yaw angle adjustment platform 20, and a second axis of the base linear module 30 is parallel to the upper surface of the leg adjustment platform 10;

[0039] The tower linear module 40 is movably mounted on the upper side of the base linear module 30, the third axis of the tower linear module 40 is perpendicular to the upper surface of the leg adjustment platform 10, and the tower linear module 40 can move along the second axis;

[0040] The probe box 50 is vertically and movably installed on the tower linear module 40. The probe box 50 is used to obtain detection information of the planar antenna 60. The probe box 50 can move along the direction of the third axis.

[0041] It should be noted that the leg adjustment platform 10 is a supporting component of the scanning frame test system, which is kept horizontal under the support of multiple push rod legs 11 and provides a supporting basis for the arrangement of other components.

[0042] In one embodiment, the number of the push rod legs 11 is four, and the four push rod legs 11 are respectively close to the four vertex corners of the leg adjustment platform 10 .

[0043] It should be noted that the push rod leg 11, as a push rod structure, can be extended and retracted along the push rod direction. In this embodiment, a push rod leg 11 is set at the four top corners of the leg adjustment platform 10. Each push rod leg 11 can adjust the angle between the plane of the leg adjustment platform 10 and the horizontal plane by extension and retraction, thereby realizing the surface angle adjustment of the leg adjustment platform 10, thereby driving the remaining components to shift in the horizontal plane.

[0044] It should be noted that the first axis of the yaw angle adjustment platform 20 is perpendicular to the axis of the leg adjustment platform 10. When the leg adjustment platform 10 is in a horizontal direction, the first axis is parallel to Figure 1 The axis line is shown in the Z axis.

[0045] It should be noted that the yaw angle adjustment platform 20 can be a structure of any shape. In this embodiment, a cylindrical shape is used as an example. The yaw angle adjustment platform 20 is provided with a base linear module 30 and a tower linear module 40. Therefore, the rotation of the yaw angle adjustment platform 20 will adjust the orientation of the base linear module 30 and the tower linear module 40 to achieve the rotation adjustment of the above components. Figure 1As shown, when the leg adjustment platform 10 is in a horizontal state, the axis of the yaw angle adjustment platform 20 is the Z axis, and when rotating, it drives the base linear module 30 and the tower linear module 40 to turn to the X axis or the Y axis, so that the direction of the probe box 50 changes.

[0046] It should be noted that the second axis of the base linear module 30 can be Figure 1 In the X-axis shown, the tower linear module 40 is installed on the base linear module 30, so that the tower linear module 40 moves along the base linear module 30 to achieve movement along the X-axis direction, thereby driving the translation of the probe box 50.

[0047] It should be noted that the probe box 50 is vertically arranged on the tower linear module 40, and is used to face the planar antenna 60, so as to detect the center of the array element of the planar antenna 60, measure the angle, etc., and the third axis of the tower linear module 40 can also be Figure 1 As shown in the Z axis, the probe box 50 can move in the tower linear module 40 along the direction of the third axis, that is, the probe box 50 can be moved vertically to align with the center of the array element of the planar antenna 60.

[0048] It should be noted that the present embodiment does not limit the specific structural forms of the leg adjustment platform 10, the yaw angle adjustment platform 20, the base linear module 30 and the tower linear module 40. It is sufficient to be able to achieve angle adjustment based on the technical solution of the present embodiment. Those skilled in the art are motivated to select a suitable specific structure according to actual needs, and no further limitations are made here.

[0049] In addition, in one embodiment, referring to Figure 1 The push rod leg 11 is a manually adjustable push rod, and the yaw angle adjustment platform 20 is provided with a manual fine-motion platform, which is used to drive the yaw angle adjustment platform 20 to rotate.

[0050] It should be noted that the push rod leg 11 of this embodiment is a manually adjustable push rod, which can achieve height adjustment of the push rod leg 11. Similarly, the yaw angle table is provided with a manual fine-motion table, which can achieve precise rotation of the yaw angle adjustment table 20 manually.

[0051] In addition, in one embodiment, referring to Figure 2 , also includes:

[0052] The industrial computer 70 is electrically connected to the probe box 50 .

[0053] It should be noted that the probe box 50 can detect relevant parameters of the planar antenna 60. Therefore, this embodiment sets an industrial computer 70 to be electrically connected with the probe box 50, so that the probe box 50 can upload the collected parameters to the industrial computer 70 for relevant control. This embodiment does not involve improvements to the control method.

[0054] In addition, in one embodiment, referring to Figure 2 , also includes:

[0055] A first motor 13, which is disposed on the push rod leg 11, and is used to drive the push rod leg 11 to extend and retract. The first motor 13 is electrically connected to the industrial computer 70;

[0056] The second motor 21 is disposed on the yaw angle adjustment platform 20 . The second motor 21 is used to drive the yaw angle adjustment platform 20 to rotate. The second motor 21 is electrically connected to the industrial computer 70 .

[0057] It should be noted that, in this embodiment, electric adjustment of the push rod leg 11 is achieved through the first motor 13, and electric adjustment of the yaw angle adjustment platform 20 is achieved through the second motor 21, and the first motor 13 and the second motor 21 are both electrically connected to the industrial computer 70, and control signals can be sent to the first motor 13 and the second motor 21 through the industrial computer 70, thereby achieving electric control and adjustment of the leg adjustment platform 10 and the yaw angle adjustment platform 20. This embodiment does not limit the specific control method of the industrial computer 70.

[0058] It should be noted that in order to adjust the table angle of the leg adjustment table 10, Figure 2 As shown, four first motors 13 may be provided, each of which is connected to a push rod leg 11 , so that each push rod leg 11 can be independently controlled.

[0059] In addition, in one embodiment, referring to Figure 2 , also includes:

[0060] A third motor 31, which is disposed on the base linear module 30, and is used to drive the tower linear module 40 to move. The third motor 31 is electrically connected to the industrial computer 70;

[0061] The fourth motor 42 is disposed on the tower linear module 40 . The fourth motor 42 is used to drive the probe box 50 to move. The fourth motor 42 is electrically connected to the industrial computer 70 .

[0062] It should be noted that the third motor 31 and the fourth motor 42 are electrically connected to the industrial computer 70 , so that the positions of the tower linear module 40 and the probe box 50 are electrically controlled by the industrial computer 70 .

[0063] It should be noted that the third motor 31 can be arranged outside the base linear module 30 and drive the tower linear module 40 to move through the transmission structure. This embodiment does not limit the specific driving form. The fourth motor 42 drives the probe box 50 in the same way.

[0064] In addition, in one embodiment, the base linear module 30 is provided with a first slide parallel to the second axis, the tower linear module 40 is movably installed on the first slide, and the third motor 31 is used to drive the first slide to move; the tower linear module 40 is provided with a second slide parallel to the third axis, the probe box 50 is installed on the second slide, and the fourth motor 42 is used to drive the second slide to move.

[0065] It should be noted that, in this embodiment, a first slide is arranged on the base linear module 30, and a second slide is arranged on the tower linear module 40. A screw can be arranged on the base linear module 30 to connect the first slide, and the screw is driven to rotate by the third motor 31, thereby driving the first slide to move, thereby realizing the movement drive of the tower linear module 40; similarly, a screw is arranged on the tower linear module 40 to connect the second slide, and the second slide is driven to move by the fourth motor 42, thereby driving the movement of the probe box 50, thereby ensuring the accuracy of the moving direction of each component.

[0066] In addition, in one embodiment, referring to Figure 2 , also includes:

[0067] The inclination sensor 12 is disposed on the leg adjustment platform 10. The inclination sensor 12 is used to detect the angle between the table surface of the leg adjustment platform 10 and the horizontal plane. The inclination sensor 12 is electrically connected to the industrial computer 70;

[0068] The rotation angle detection device 22 is arranged on the yaw angle adjustment platform 20. The yaw angle adjustment platform 20 is used to detect the rotation angle of the yaw angle adjustment platform 20. The yaw angle adjustment platform 20 is electrically connected to the industrial computer 70;

[0069] A first position detection device 32, which is disposed on the base linear module 30, and is used to detect the current position of the tower linear module 40, and is electrically connected to the industrial computer 70;

[0070] The second position detection device 41 is disposed on the tower linear module 40 . The second position detection device 41 is used to detect the current position of the probe box 50 . The second position detection device 41 is electrically connected to the industrial computer 70 .

[0071] It should be noted that, based on the description of the above embodiment, the leg adjustment platform 10 can realize the angle adjustment in the horizontal plane direction, so the angle can be detected by setting the inclination sensor 12 to determine the angle between the probe box 50 and the horizontal plane. In addition, the inclination sensor 12 is electrically connected to the industrial computer 70, so that the collected angle value can be uploaded to the industrial computer 70 for subsequent analysis.

[0072] It should be noted that, based on the description of the above embodiment, the yaw angle adjustment table 20 is a structure that rotates along the first axis, and therefore its rotation angle needs to be detected to determine the orientation of the probe box 50. Based on this, this embodiment detects the rotation angle through the angle detection device 22, and can send it to the electrically connected industrial computer 70 for subsequent processing.

[0073] It should be noted that, since the tower linear module 40 can realize movement in the X-axis direction along the axis of the base linear module 30, and the probe box 50 can realize movement in the Z-axis direction, it is necessary to detect the position after movement to determine the spatial position of the probe box 50. This embodiment implements the above-mentioned detection through the first position detection device 32 and the second position detection device 41, and the obtained position information can be sent to the industrial computer 70 via an electrical connection, thereby providing a data basis for the control of the industrial computer 70.

[0074] In addition, in one embodiment, referring to Figure 2 The rotation angle detection device 22 is an encoder, and the first position detection device 32 and the second position detection device 41 are both grating rulers.

[0075] Those skilled in the art will appreciate that the encoder may be a common angle encoder capable of detecting the rotation angle, and the specific principles will not be elaborated herein.

[0076] Those skilled in the art will appreciate that a grating ruler can detect the moving distance, so both the first position detection device 32 and the second position detection device 41 can adopt a grating ruler, and the specific parameters can be selected according to actual needs.

[0077] In addition, in one embodiment, referring to Figure 2 The probe box 50 is provided with a distance measuring sensor 51 and a visual sensor 52.

[0078] It should be noted that by setting the distance sensor 51, the distance between the probe box 50 and the planar antenna 60 can be detected, thereby realizing the distance measurement of the planar antenna 60. By setting the visual sensor 52, the planar antenna 60 can be scanned, thereby realizing the recognition of the planar antenna 60. The principles of the relevant sensors are not elaborated in this embodiment.

[0079] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application.

[0080] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

[0081] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the above implementation mode. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the present invention. These equivalent deformations or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A scanning frame testing system, characterized in that: include: A leg adjustment platform, the lower side of which is fixedly connected with a plurality of push rod legs, and the push rod legs can be extended and retracted in the vertical direction; A yaw angle adjustment platform, wherein the yaw angle adjustment platform is arranged on the upper surface of the leg adjustment platform, a first axis of the yaw angle adjustment platform is perpendicular to the upper surface of the leg adjustment platform, and the yaw angle adjustment platform can rotate along the first axis; A base linear module, the base linear module is installed on the upper side of the yaw angle adjustment platform, and the second axis of the base linear module is parallel to the upper surface of the leg adjustment platform; A tower linear module, wherein the tower linear module is movably mounted on the upper side of the base linear module, the third axis of the tower linear module is perpendicular to the upper surface of the leg adjustment platform, and the tower linear module is movable along the second axis; A probe box is vertically and movably mounted on the tower linear module, the probe box is used to obtain detection information of the planar antenna, and the probe box can move along the direction of the third axis.

2. The scanning frame test system according to claim 1, characterized in that: The number of the push rod legs is 4, and the 4 push rod legs are respectively close to the 4 vertex corners of the leg adjustment platform.

3. The scanning frame test system according to claim 2, characterized in that: The push rod legs are manually adjustable push rods, and the yaw angle adjustment platform is provided with a manual fine-motion platform, and the manual fine-motion platform is used to drive the yaw angle adjustment platform to rotate.

4. The scanning frame test system according to claim 1, characterized in that: Also includes: An industrial computer is electrically connected to the probe box.

5. The scanning frame test system according to claim 4, characterized in that: Also includes: A first motor, which is disposed on the push rod leg and is used to drive the push rod leg to extend and retract, and is electrically connected to the industrial control machine; The second motor is arranged on the yaw angle adjustment platform, the second motor is used to drive the yaw angle adjustment platform to rotate, and the second motor is electrically connected to the industrial control computer.

6. The scanning frame test system according to claim 5, characterized in that: Also includes: A third motor, the third motor is arranged on the base linear module, the third motor is used to drive the tower linear module to move, and the third motor is electrically connected to the industrial control machine; A fourth motor is arranged on the tower linear module, the fourth motor is used to drive the probe box to move, and the fourth motor is electrically connected to the industrial control machine.

7. The scanning frame testing system according to claim 6, characterized in that: The base linear module is provided with a first slide parallel to the second axis, the tower linear module is installed on the first slide, and the third motor is used to drive the first slide to move; the tower linear module is provided with a second slide parallel to the third axis, the probe box is installed on the second slide, and the fourth motor is used to drive the second slide to move.

8. The scanning frame testing system according to claim 4, characterized in that: Also includes: An inclination sensor, which is arranged on the leg adjustment platform, and is used to detect the angle between the table surface of the leg adjustment platform and the horizontal plane, and is electrically connected to the industrial control machine; A rotation angle detection device, the rotation angle detection device is arranged on the yaw angle adjustment platform, the yaw angle adjustment platform is used to detect the rotation angle of the yaw angle adjustment platform, and the yaw angle adjustment platform is electrically connected to the industrial control machine; A first position detection device, the first position detection device is arranged on the base linear module, the first position detection device is used to detect the current position of the tower linear module, and the first position detection device is electrically connected to the industrial computer; The second position detection device is arranged on the tower linear module, the second position detection device is used to detect the current position of the probe box, and the second position detection device is electrically connected to the industrial computer.

9. The scanning frame testing system according to claim 8, characterized in that: The rotation angle detection device is an encoder, and the first position detection device and the second position detection device are both grating rulers.

10. The scanning frame testing system according to claim 1, characterized in that: The probe box is provided with a distance measuring sensor and a visual sensor.

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