Multi-camera sharpness detection platform

Abstract

The utility model relates to a kind of multi-camera definition detection platform, including support seat and bracket assembly, its technical key points are: bracket assembly includes stand, rotating sleeve, horizontal support disc, multiple edge column, support ring, concentric ring rail, the lower surface of horizontal support disc is equipped with the annular sliding slot matched with concentric ring rail, multiple longitudinal through holes evenly arranged around the center are equipped on horizontal support disc, longitudinal through hole is fixed with clamping cylinder, the upper portion of clamping cylinder is located above horizontal support disc, and it is split type structure, support seat upper surface is equipped with test card placement table, test card placement table is located below the rotating path of clamping cylinder, stand is hollow column and its top end is equipped with extension support cylinder, the top of extension support cylinder is equipped with flange plate and the upper end surface of flange plate is equipped with turntable, the equal number of signal switcher of clamping cylinder is fixed on the upper side of turntable.The utility model solves the problem of low detection efficiency, saves the time of clamping camera, significantly improves detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of camera inspection technology, specifically to a multi-camera sharpness inspection platform. Background Technology

[0002] The purpose of camera sharpness testing is to accurately and objectively evaluate the image quality of a camera. During testing, a test board is placed on the top side of the camera. After the camera captures an image, it transmits the image to a processor. The processor calculates the brightness difference between all adjacent pixels in the resolution test image and then takes the average of all brightness differences to evaluate the sharpness of the digital camera under test.

[0003] Currently, when testing image sharpness, one camera is first mounted, and after testing, it is removed and another camera is mounted. This method is inefficient and not suitable for batch testing. Utility Model Content

[0004] The purpose of this invention is to provide a multi-camera sharpness detection platform with a reasonable structure and reliable operation, thereby solving the problem of low detection efficiency, saving time for camera mounting, and significantly improving detection efficiency.

[0005] The technical solution of this utility model is: A multi-camera sharpness detection platform includes a support base and a bracket assembly. The key technical features are as follows: the bracket assembly includes a column fixed to the center of the upper surface of the support base, a rotating sleeve located at the upper end of the column, a horizontal support disk fixed to the outer periphery of the rotating sleeve and concentric with it, multiple side columns fixed to the upper surface of the support base and arranged around the column, a support ring fixed to the top of each side column and concentric with the column, and a concentric ring rail located on the top surface of the support ring. The lower surface of the horizontal support disk has an annular groove that mates with the concentric ring rail. The horizontal support disk has multiple longitudinal through holes evenly arranged around its center, and clamping cylinders are fixed at the longitudinal through holes. The upper part of the clamping cylinder is located above the horizontal support disc and has a segmented structure. The upper surface of the support base is provided with a test card placement platform, which is located below the rotation path of the clamping cylinder. The column is a hollow column and its top is provided with an extension support cylinder connected to it. The top of the extension support cylinder is provided with a flange and the upper end face of the flange is provided with a turntable. The number of signal adapters equal to the number of clamping cylinders is fixed above the turntable. A hub is provided at the center of the turntable. The output cables of each signal adapter pass through the hub and are bundled into a wire bundle. The wire bundle passes through the cavity of the extension support cylinder, the hollow column and the support base and is led to the outside of the support base.

[0006] In the aforementioned multi-camera sharpness detection platform, the outer circumferential surface of the horizontal support disk is provided with a gear ring, a small support is fixed on the upper part of one of the side columns, a motor is fixed on the upper surface of the small support, and a drive gear that meshes with the gear ring is fixed on the output shaft of the motor.

[0007] The aforementioned multi-camera sharpness detection platform has multiple longitudinal notches on the upper part of the clamping cylinder, with a clamping flap formed between two adjacent longitudinal notches, and each clamping flap constitutes the segmented structure.

[0008] In the aforementioned multi-camera sharpness detection platform, the outer shell of the signal converter is provided with a hard plastic protective tube surrounding the outside of the input cable. The hard plastic protective tubes on the outside of each signal converter are evenly arranged around the center line of the column and are perpendicular to the center line of the column.

[0009] The aforementioned multi-camera sharpness detection platform has a T-shaped rotating ring on the lower surface of the turntable and an annular groove on the upper surface of the flange that mates with the rotating ring.

[0010] In the aforementioned multi-camera sharpness detection platform, the signal adapters are evenly arranged around the center line of the turntable, and the top surface of the outer shell of each signal adapter is connected to a plate at a certain distance.

[0011] The beneficial effects of this utility model are: 1. In use, first insert each camera under test into its corresponding clamping sleeve, and then connect the output connector of the camera under test to the input cable of the corresponding signal adapter. During operation, the drive mechanism can drive the horizontal support disc to rotate at a set angle at a set frequency interval, so that each camera under test alternately arrives above the test card placement stage for sequential clarity testing. Compared with existing technologies, this solves the problem of low testing efficiency, saves camera clamping time, and significantly improves testing efficiency.

[0012] 2. The upper part of the clamping cylinder has a split structure, which is conducive to clamping and fixing cameras of different outer diameters. It has a wide range of applications and high clamping efficiency.

[0013] 3. When the horizontal support disc drives the clamping cylinder to rotate, the output cable of the camera under test pulls the signal adapter and the turntable to rotate accordingly, avoiding detection interference and ensuring the standard and aesthetic appearance of the testing platform. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A magnified view of a portion of the image; Figure 3 yes Figure 1 Top view.

[0015] In the diagram: 1. Drive gear, 2. Horizontal support disc, 3. Clamping cylinder, 301. Split structure, 4. Hard plastic protective tube, 5. Extension support cylinder, 6. Concentric ring rail, 7. Gear ring, 8. Side column, 9. Rotating sleeve, 10. Column, 11. Motor, 12. Support base, 13. Test card placement platform, 14. Small support, 15. Support ring, 16. Signal adapter, 17. Spacing plate, 18. Output cable, 19. Turntable, 20. Rotating ring, 21. Hub, 22. Wire harness, 23. Flange. Detailed Implementation

[0016] The present invention will be described in detail with reference to the accompanying drawings.

[0017] like Figures 1-3 As shown, the multi-camera sharpness detection platform includes a support base 12 and a bracket assembly.

[0018] The support assembly includes a column 10 fixed to the center of the upper surface of the support base 12, a rotating sleeve 9 located at the upper end of the column 10, a horizontal support disk 2 fixed to the outer periphery of the rotating sleeve 9 and concentric with it, a plurality of side columns 8 fixed to the upper surface of the support base 12 and arranged around the column 10, a support ring 15 fixed to the top of each side column 8 and concentric with the column 10, and a concentric ring rail 6 located on the top surface of the support ring 15. The lower surface of the horizontal support disk 2 is provided with an annular groove that mates with the concentric ring rail 6. In this embodiment, the outer peripheral surface of the horizontal support disk 2 is provided with a gear ring 7, a small support 14 is fixed to the upper part of one of the side columns 8, a motor 11 is fixed to the upper surface of the small support 14, and a drive gear 1 that meshes with the gear ring 7 is fixed to the output shaft of the motor 11.

[0019] The horizontal support disk 2 has four longitudinal through holes evenly arranged around its center, and a clamping cylinder 3 is fixed at each of the longitudinal through holes. The upper part of the clamping cylinder 3 is located above the horizontal support disk 2 and has a segmented structure 301. In this embodiment, the upper part of the clamping cylinder 3 has multiple longitudinal notches, and a clamping segment is formed between two adjacent longitudinal notches. Each clamping segment constitutes the segmented structure 301. The upper surface of the support base 12 is provided with a test card placement platform 13, which is located below the rotation path of the clamping cylinder 3.

[0020] The column 10 is a hollow column and its top is provided with an extension support cylinder 5 communicating with it. The top of the extension support cylinder 5 is provided with a flange 23 and the upper end face of the flange 23 is provided with a turntable 19. The turntable 19 is fixed with a number of signal adapters 16 equal to the number of clamping cylinders 3. The lower surface of the turntable 19 is provided with a rotating ring 20 with a T-shaped cross section. The upper end face of the flange 23 is provided with an annular groove that mates with the rotating ring 20.

[0021] The turntable 19 has a central hub 21. The output cables 18 of each signal converter 16 pass through the hub 21 and are bundled into a cable bundle 22. The cable bundle 22 passes through the cavity of the extension support cylinder 5, the hollow column, and the support base 12 and is led to the outside of the support base 12. In this embodiment, the signal converters 16 are evenly arranged around the center line of the turntable 19, and the top surface of the outer shell of each signal converter 16 is connected to a fixed-distance plate 17. The outer shell of each signal converter 16 is provided with a hard plastic protective tube 4 surrounding the outside of the input cable. The hard plastic protective tubes 4 on the outside of each signal converter 16 are evenly arranged around the center line of the column 10 and are perpendicular to the center line of the column 10.

[0022] Working principle: 1. Insert the four cameras under test into the corresponding clamping cylinders 3, and then connect the output connectors of the cameras under test to the input cables of the nearby signal adapters 16. The ends of the output cables 18 of each signal adapter 16 are connected to an external processor via connectors.

[0023] 2. In the initial state, the top surface of one of the cameras under test faces the test card placed on the test card placement platform 13. The camera under test transmits the captured image to the processor outside the platform through the signal converter 16. The processor analyzes and detects its clarity.

[0024] 3. Start motor 11, which drives the horizontal support disk 2 to rotate 90 degrees clockwise, so that the next camera under test is above the test card for clarity detection. After the detection is completed, motor 11 drives the horizontal support disk 2 to rotate 90 degrees clockwise again for the detection of the third camera under test. After the detection of the third camera under test is completed, motor 11 drives the horizontal support disk 2 to rotate 90 degrees clockwise again for the detection of the fourth camera under test, thus completing the first batch of detections.

[0025] 4. Remove the four cameras that have been tested, and then take four cameras to be tested and insert them into the corresponding clamping cylinders 3. Repeat step 1. To avoid cable entanglement and interference, during the testing process of this batch of cameras, motor 11 drives the horizontal support disk 2 to rotate counterclockwise, and the rest is the same as step 3.

[0026] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. A multi-camera sharpness detection platform, comprising a support base and a bracket assembly, characterized in that: The support assembly includes a column fixed to the center of the upper surface of the support base, a rotating sleeve located at the upper end of the column, a horizontal support disk fixed to the outer periphery of the rotating sleeve and concentric with it, multiple side columns fixed to the upper surface of the support base and arranged around the column, a support ring fixed to the top of each side column and concentric with the column, and a concentric ring rail located on the top surface of the support ring. The lower surface of the horizontal support disk is provided with an annular groove that mates with the concentric ring rail. The horizontal support disk is provided with multiple longitudinal through holes evenly arranged around its center. A clamping cylinder is fixed at each of the longitudinal through holes, and the upper part of the clamping cylinder is located on the horizontal support disk. Above the disc, and with a segmented structure, the upper surface of the support base is provided with a test card placement platform, which is located below the rotation path of the clamping cylinder. The column is a hollow column with an extension support cylinder communicating with it at its top. The top of the extension support cylinder is provided with a flange, and the upper end face of the flange is provided with a turntable. Above the turntable, there are signal adapters equal in number to the clamping cylinders. The center of the turntable is provided with a hub tube. The output cables of each signal adapter pass through the hub tube and are bundled into a wire bundle. The wire bundle passes through the cavity of the extension support cylinder, the hollow column, and the support base and is led to the outside of the support base.

2. The multi-camera sharpness detection platform according to claim 1, characterized in that: The outer circumferential surface of the horizontal support disk is provided with a gear ring, a small support is fixed on the upper part of one of the side columns, a motor is fixed on the upper surface of the small support, and a drive gear that meshes with the gear ring is fixed on the output shaft of the motor.

3. The multi-camera sharpness detection platform according to claim 1, characterized in that: The upper part of the clamping cylinder is provided with multiple longitudinal notches, and a clamping flap is formed between two adjacent longitudinal notches. Each clamping flap constitutes the segmented structure.

4. The multi-camera sharpness detection platform according to claim 1, characterized in that: The outer shell of the signal converter is provided with a hard plastic protective tube surrounding the outside of the input cable. The hard plastic protective tubes on the outside of each signal converter are evenly arranged around the center line of the column and are perpendicular to the center line of the column.

5. The multi-camera sharpness detection platform according to claim 1, characterized in that: The lower surface of the turntable is provided with a T-shaped rotating ring, and the upper end face of the flange is provided with an annular groove that mates with the rotating ring.

6. The multi-camera sharpness detection platform according to claim 1, characterized in that: The signal adapters are evenly arranged around the center line of the turntable, and the top surface of the outer shell of each signal adapter is connected to a plate at a certain distance.

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