Camera detection device

Abstract

The utility model provides a camera detection device, the detection device comprises a dial and a moving structure, the dial comprises a bottom surface and a scale surface extending around the edge of the bottom surface, and the scale surface is provided with scale lines; the moving structure is provided with a limiting assembly which is used for fixing the camera; the moving structure is used for driving the camera to move relative to the scale surface, so that the field angle of the camera is measured by shooting the scale lines through the camera. According to the utility model, the camera is driven by the moving structure to move relative to the dial, so that the camera can flexibly move to a position suitable for measuring a field angle by a user, and a test chart card is not required to be used for reference test, thereby saving the measurement time and improving the test efficiency. Moreover, a plurality of limiting pieces are operably arranged on the limiting assembly, so that the positioning accuracy of the camera is improved, the camera positioning device can be compatible with various cameras with different sizes, and the operability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to camera technical field especially relates to a camera detection device. BACKGROUND

[0002] FOV (Field of View) is usually used to describe the spatial range or angle that an observer can see through a certain device (such as a camera, a telescope, a microscope, a virtual reality (VR) device, etc.). Nowadays, in order to improve driving safety, optimize driving experience, improve system performance, and adapt to different driving scenarios, the control of the FOV of the automobile camera is increasingly important.

[0003] Currently, for the measurement of the FOV of the automobile camera, the camera is usually fixed at the center of the protractor, and after fixing the test distance between the camera and the test card, the protractor is rotated to measure the field of view angle in the corresponding direction to obtain the FOV. However, this measurement method needs to be matched with a test card, and the test card needs to be fixed on the wall surface, which has requirements for the measurement space of the camera. SUMMARY

[0004] Therefore, it is necessary to provide a camera detection device.

[0005] In a first aspect, the utility model provides a camera detection device, which comprises a protractor and a moving structure. The protractor comprises a bottom surface and a scale surface extending around the edge of the bottom surface. The scale surface is provided with a scale line. The moving structure is provided with a limiting component for fixing the camera. The moving structure is used to drive the camera to move relative to the scale surface, so as to measure the field of view angle of the camera by shooting the scale line with the camera.

[0006] Further, the scale surface comprises an observation surface and a curved surface. Along the setting direction of the observation surface, the curved surface is connected to both sides of the observation surface, and the curved surface and the observation surface jointly enclose the bottom surface.

[0007] Further, the scale line is located on one side of the curved surface relative to the observation surface. The scale line comprises a plurality of scale lines corresponding to a plurality of angle values one by one, and the plurality of scale lines are sequentially arranged along the two ends of the scale surface.

[0008] Further, the bottom surface is provided with a notch, and the moving structure penetrates through the bottom surface through the notch, so as to drive the camera to move on one side of the bottom surface facing the extension direction of the scale surface.

[0009] Further, the moving structure is connected to one side of the bottom surface away from the extension direction of the scale surface through a first support.

[0010] Further, the limiting assembly comprises a second support, a third support and a limiting piece, the limiting piece is installed on the second support, the third support is installed between the second support and the moving structure, and the third support and the second support are matched to place the camera.

[0011] Further, one side of the bottom surface extending towards the extending direction of the scale surface is detachably provided with a limiting block, and the limiting block is matched with the limiting piece to limit the camera.

[0012] Further, the limiting piece comprises a first limiting piece and two second limiting pieces, the first limiting piece is located on the side of the second support away from the bottom surface, and the two second limiting pieces are respectively located on the two sides of the second support along the arrangement direction of the observation surface.

[0013] Further, the moving structure comprises a translation assembly and a lifting assembly, the lifting assembly is located on the side of the translation assembly towards the bottom surface, and the lifting assembly penetrates the bottom surface through the slot and is connected to the third support.

[0014] Further, the side of the translation assembly away from the bottom surface is provided with a base plate, the base plate is connected with the first support, the translation assembly is operable to move horizontally on the base plate, and the lifting assembly is operable to move up and down on the translation assembly.

[0015] The camera detection device described above drives the camera to move relative to the scale disc through the moving structure, so that the camera can be flexibly moved to a position suitable for the user to measure the visual field angle, without the need of using a test chart for reference test, thereby saving the measurement time and improving the test efficiency. Moreover, the limiting assembly is operable to be provided with multiple limiting pieces, which can improve the positioning accuracy of the camera, and can be compatible with cameras of different sizes, and has high operability. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0017] Figure 1 A perspective view of the camera detection device provided by the embodiments of the present application.

[0018] Figure 2 An exploded view of the camera detection device provided by the embodiments of the present application.

[0019] Figure 3 The structural schematic diagram of the moving structure is provided for the utility model embodiment.

[0020] Figure 4 The partial structural schematic diagram of the camera detection device is provided for the utility model embodiment.

[0021] Element number

[0022] Camera detection device-100 Second support-211

[0023] Dial-1 Third support-212

[0024] Bottom-11 First limiting piece-2131

[0025] Notch-111 First differential head-21311

[0026] Limiting block-112 Positioning block-21312

[0027] Scale surface-12 Second limiting piece-2132

[0028] Observation surface-121 Second differential head-21321

[0029] Curved surface-122 Pressing block-21322

[0030] Scale line-1221 Translation assembly-22

[0031] Moving structure-2 Base plate-221

[0032] First support-20 Lifting assembly-23

[0033] Limiting assembly-21

[0034] The realization, functional characteristics and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0035] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship described based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or a quantity of indicated technical features. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise specifically defined.

[0037] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In order to make the content of the present application more clearly and more accurately understood, the present application will be described in detail in conjunction with the drawings. The drawings show examples of embodiments of the present application, wherein the same reference numerals represent the same elements. It can be understood that the proportions shown in the drawings are not the actual proportions of the present application, which are only for the purpose of illustration, and are not drawn according to the original size.

[0039] Please refer to Figure 1 The present application provides a camera detection device 100. The detection device 100 comprises a scale disc 1 and a moving structure 2. The moving structure 2 is provided with a limiting assembly 21. The limiting structure is used to fix the camera. The present application can drive the camera to move relative to the scale disc 1 through the moving structure 2, so as to complete the measurement of the field of view angle of the camera by shooting the scale disc 1 through the camera. The specific features of each component in the detection device 100 will be described below.

[0040] In the embodiment, the dial 1 comprises a bottom surface 11 and a scale surface 12 extending around the edge of the bottom surface 11. The scale surface 12 is provided with scale lines. The scale surface 12 comprises an observation surface 121 and a curved surface 122. The curved surface 122 is connected to both sides of the observation surface 121 along the setting direction of the observation surface 121. The shape of the curved surface 122 can be determined according to the requirement of the camera to measure the field angle, for example, a circular arc shape. The curved surface 122 and the observation surface 121 jointly enclose the bottom surface 11. The scale lines 1221 are located on one side of the curved surface 122 relative to the observation surface 121. The scale lines 1221 comprise a plurality of scale lines corresponding to a plurality of angle values. The plurality of scale lines are sequentially arranged along the two ends of the scale surface 12. In some embodiments of the present application, the scale surface 12 is further provided with a plurality of angle value marks corresponding to the plurality of scale lines. Each angle value mark corresponds to an angle value. In other embodiments of the present application, the angle value marks are sequentially arranged on the scale surface 12, and the average angle value of the angle values is located at the center position of the inner wall of the scale surface 12.

[0041] In the embodiment, the limiting assembly 21 is used for fixing the camera. The limiting assembly 21 comprises a second support 211, a third support 212 and a limiting piece. The third support 212 is installed between the second support 211 and the moving structure 2. The third support 212 and the second support 211 are used for placing the camera in cooperation. The limiting piece is installed on the second support 211. The bottom surface 11 is detachably provided with a limiting block 112 on the side facing the extending direction of the scale surface 12. The limiting block 112 is used for limiting the camera in cooperation with the limiting piece.

[0042] Further, the limiting member includes a first limiting member 2131 and two second limiting members 2132. The first limiting member 2131 includes a first micro differential head 21311 and a positioning block 21312 connected with the first micro differential head 21311. The first micro differential head 21311 is configured to drive the positioning block 21312 to move. The two second limiting members 2132 each include a second micro differential head 21321 and a pressing block 21322 connected with the second micro differential head 21321. The second micro differential head 21321 is configured to drive the pressing block 21322 to move. The first limiting member 2131 is located on a side of the second support 211 away from the bottom surface 11. Along the setting direction of the observation surface 121, the two second limiting members 2132 are respectively located on two sides of the second support 211. The first micro differential head 21311 of the first limiting member 2131 is located on a side of the second support 211 away from the camera, and the positioning block 21312 of the first limiting member 2131 is located on a side of the second support 211 facing the camera. The second micro differential head 21321 of the two second limiting members 2132 is located on a side of the second support 211 away from the camera, and the pressing block 21322 of the two second limiting members 2132 is located on a side of the second support 211 facing the camera. The first micro differential head 21311 and the second micro differential head 21321 can be the same or different micro differential heads. In the present embodiment, the first micro differential head 21311 and the second micro differential head 21321 are the same micro differential head.

[0043] In the present embodiment, the moving structure 2 is configured to drive the camera to move relative to the scale surface 12, so as to measure the field of view angle of the camera by capturing the scale line 1221 by the camera. In the present application, the observation surface 121 is configured to allow a user to observe the camera capturing the scale surface 12 on a side close to the observation surface 121. The moving structure 2 includes a translation assembly 22 and a lifting assembly 23. The lifting assembly 23 is located on a side of the translation assembly 22 facing the bottom surface 11. A base plate 221 is provided on a side of the translation assembly 22 away from the bottom surface 11. The base plate 221 is connected with the first support 20. The translation assembly 22 is operable to move horizontally on the base plate 221, and the lifting assembly 23 is operable to move up and down on the translation assembly 22.

[0044] Further, the moving structure 2 is connected with the bottom surface 11 on a side of the bottom surface 11 away from the extending direction of the scale surface 12 through the first support 20. The bottom surface 11 is provided with a slot 111. The slot 111 is configured to allow the moving structure 2 to penetrate through the bottom surface 11, so as to drive the camera to move on a side of the bottom surface 11 extending towards the scale surface 12. In the present application, the lifting assembly 23 penetrates through the bottom surface 11 via the slot 111 and is connected with the third support 212. Preferably, the curved surface 122 is in the shape of a circular arc, and the center of the slot 111 is located at the center of the circumference formed by the scale surface 12 in the plane of the bottom surface 11.

[0045] In this embodiment, the first limiting piece 2131 and the two second limiting pieces 2132 are respectively operable relative to the second support 211, so as to adjust the position of the camera relative to the limiting assembly 21 along the lifting movement direction of the lifting assembly 23 through the first limiting piece 2131, and along the horizontal movement direction of the translation assembly 22 through the two second limiting pieces 2132. Specifically, the first limiting piece 2131 drives the positioning block 21312 to move by operating the first micro differential head 21311, so that the position of the first limiting piece 2131 and the limiting assembly 21 in the lifting movement direction changes, thereby adjusting the position of the camera relative to the limiting assembly 21 in the lifting movement direction. The second limiting piece 2132 drives the corresponding pressing block 21322 to move through the two second micro differential heads 21321, so that the positions of the two second limiting pieces 2132 and the limiting assembly 21 in the horizontal movement direction change respectively, thereby adjusting the positions of the camera relative to the limiting assembly 21 in the horizontal movement direction respectively. Therefore, the first limiting piece 2131 and the two second limiting pieces 2132 jointly limit the camera and adjust the position of the camera relative to the limiting assembly 21, so as to be compatible with cameras of various different sizes, and improve the operability of the detection device 100.

[0046] In the above embodiments, the specific features of each assembly in the detection device 100 are described. The field of view angle of the camera in this application includes but is not limited to the horizontal field of view angle, the vertical field of view angle, etc. Taking the horizontal field of view angle as an example, how to measure the field of view angle of the camera through the detection device 100 will be described in detail below.

[0047] First, the camera is fixed to the limiting assembly 21, and the camera is set to be in a working state; then, the display screen corresponding to the camera is observed, and the optical center of the camera is aligned with the preset position of the scale line 1221 in the scale disc 1 by adjusting the first limiting piece 2131 and the two second limiting pieces 2132. The preset position is the center position of the side of the scale surface 12 surrounding the bottom surface 11. When the optical center of the camera is aligned with the preset position of the scale line 1221, the camera is locked to the limiting assembly 21 by adjusting the first limiting piece 2131 and the two second limiting pieces 2132, and the limiting block 112 is installed on the bottom surface 11. Then, the translation assembly 22 is adjusted to drive the camera to move until the lens part of the camera contacts the limiting block 112; when the camera is driven by the translation assembly 22 to move until it contacts the limiting block 112, the limiting block 112 is detached from the bottom surface 11, the lifting assembly 23 is adjusted to drive the camera to move to a preset measurement position, and the angle values of the leftmost and rightmost sides in the display screen of the camera at the preset measurement position are read to measure the horizontal field of view angle of the camera.

[0048] When it is needed to measure the vertical field of view angle of the camera, only need to rotate the camera 90° and place it in the limiting assembly 21, and then measure according to the above-mentioned measuring steps of the horizontal field of view angle of the camera, so as to correspondingly measure the vertical field of view angle of the camera.

[0049] In the above-mentioned embodiments, the camera is moved relative to the scale disc by the moving structure, so that the camera can be flexibly moved to a position suitable for measuring the field of view angle by the user, without using a test chart for reference test, thereby saving the measuring time and improving the test efficiency. Moreover, by operatively arranging multiple limiting members in the limiting assembly, the accuracy of positioning the camera is improved, and the camera of various sizes can be compatible, so the operability is strong.

[0050] Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and changes of the present application belong to the scope of the claims of the present application and the equivalent technology, the present application also intends to include these modifications and changes.

[0051] The above-mentioned is only the preferred embodiment of the present application, and of course cannot limit the scope of the present application, so the equivalent changes made according to the claims of the present application still belong to the scope of the present application.

Claims

1. A camera detection apparatus, characterized by comprising: The detection device comprises: A dial plate comprising a bottom surface and a scale surface extending around the edge of the bottom surface, the scale surface being provided with scale lines; A moving structure provided with a limiting assembly for fixing a camera, the moving structure being used to drive the camera to move relative to the scale surface so as to measure the field of view angle of the camera by taking pictures of the scale lines by the camera.

2. The camera detection apparatus of claim 1, wherein The scale surface comprises an observation surface and a curved surface, the curved surface being connected to both sides of the observation surface, and the curved surface and the observation surface jointly enclosing the bottom surface.

3. The camera detection apparatus of claim 2, wherein The scale lines are located on one side of the curved surface relative to the observation surface, the scale lines comprising a plurality of scale lines corresponding to a plurality of angle values, the plurality of scale lines being arranged in sequence along the two ends of the scale surface.

4. The camera detection apparatus of claim 2, wherein The bottom surface is provided with a slot, the slot being used for the moving structure to penetrate the bottom surface so as to drive the camera to move on the side of the bottom surface facing the extension direction of the scale surface.

5. The camera detection apparatus of claim 4, wherein, The moving structure is connected to the side of the bottom surface away from the extension direction of the scale surface through a first support.

6. The camera detection apparatus of claim 5, wherein, The limiting assembly comprises a second support, a third support and a limiting piece, the limiting piece being installed on the second support, the third support being installed between the second support and the moving structure, and the third support and the second support being used to place the camera in cooperation.

7. The camera detection apparatus of claim 6, wherein, The side of the bottom surface facing the extension direction of the scale surface is detachably provided with a limiting block, the limiting block being used to limit the camera in cooperation with the limiting piece.

8. The camera detection apparatus of claim 6, wherein, The limiting piece comprises a first limiting piece and two second limiting pieces, the first limiting piece being located on the side of the second support away from the bottom surface, the two second limiting pieces being respectively located on both sides of the second support along the arrangement direction of the observation surface.

9. The camera detection apparatus of claim 6, wherein, The moving structure comprises a translation assembly and a lifting assembly, the lifting assembly being located on the side of the translation assembly facing the bottom surface, and the lifting assembly being connected to the third support by penetrating the bottom surface through the slot.

10. The camera detection apparatus of claim 9, wherein, The side of the translation assembly away from the bottom surface is provided with a base plate, the base plate being connected to the first support, the translation assembly being operable to move horizontally on the base plate, and the lifting assembly being operable to move up and down on the translation assembly.

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