CN117516887A - Head-up display detection device - Google Patents
Head-up display detection device Download PDFInfo
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- CN117516887A CN117516887A CN202311676980.2A CN202311676980A CN117516887A CN 117516887 A CN117516887 A CN 117516887A CN 202311676980 A CN202311676980 A CN 202311676980A CN 117516887 A CN117516887 A CN 117516887A
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- 238000001514 detection method Methods 0.000 title claims abstract description 55
- 238000003384 imaging method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0242—Testing optical properties by measuring geometrical properties or aberrations
- G01M11/0257—Testing optical properties by measuring geometrical properties or aberrations by analyzing the image formed by the object to be tested
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention relates to the technical field of head-up display detection, in particular to a head-up display detection device, a calibration assembly and a camera assembly; the calibration assembly comprises a far-end calibration plate and a near-end calibration plate which are oppositely arranged, the far-end calibration plate is provided with a far-end calibration through hole, the near-end calibration plate is provided with a near-end calibration through hole, and a connecting line of the far-end calibration through hole and the near-end calibration through hole forms a fixed light path; the camera assembly comprises a camera movably arranged on one side of the near-end calibration plate far away from the far-end calibration plate, and a lens of the camera faces the near-end calibration plate. The invention can improve the accuracy of the detection position of the camera.
Description
Technical Field
The invention relates to the technical field of head-up display detection, in particular to a head-up display detection device.
Background
The head-up display is also called a head-up display system, and is used for projecting important driving information such as speed of time, navigation and the like onto a front windshield. In order to detect whether the head-up display imaging is qualified, the camera must be ensured to detect in the correct position, and if the position of the camera is not right, the image photographed during the detection of the camera is easy to generate problems of unclear, distortion and the like. At present, a calibration plate is arranged for determining the position of a camera, a calibration hole which can be penetrated by a HUD light path is formed in the calibration plate, then a lens of the camera and the calibration hole in the calibration plate are positioned, but the positioning mode has the reason that the lens of the camera can penetrate the calibration hole at multiple angles, so that the detection precision is limited. Especially for AR-HUD products with longer imaging distance, the detection accuracy is difficult to be ensured.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: provided is a head-up display detection device capable of improving the accuracy of a camera detection position.
In order to solve the technical problems, the invention adopts the following technical scheme: a head-up display detection device comprises a calibration assembly and a camera assembly; the calibration assembly comprises a far-end calibration plate and a near-end calibration plate which are oppositely arranged, the far-end calibration plate is provided with a far-end calibration through hole, the near-end calibration plate is provided with a near-end calibration through hole, and a connecting line of the far-end calibration through hole and the near-end calibration through hole forms a fixed light path; the camera assembly comprises a camera movably arranged on one side of the near-end calibration plate far away from the far-end calibration plate, and a lens of the camera faces the near-end calibration plate.
The invention has the beneficial effects that: the calibration assembly with the far-end calibration plate and the near-end calibration plate is additionally arranged, the far-end calibration through hole and the near-end calibration through hole are respectively formed in the far-end calibration plate and the near-end calibration plate, so that a fixed light path can be determined in a mode that the far-end calibration through hole and the near-end calibration through hole are in a straight line, and when the camera position is determined, a lens of the camera can penetrate through the far-end calibration through hole and the near-end calibration through hole, namely, the lens of the camera, the far-end calibration through hole and the near-end calibration through hole are all in the straight line, and further the position precision of the lens of the camera is guaranteed, so that the detection of an AR-HUD product can be met.
Drawings
FIG. 1 is a schematic diagram of a device for detecting head-up display according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a remote calibration plate structure of a head-up display detection device according to an embodiment of the present invention;
FIG. 3 is a schematic view of a proximal calibration plate structure of a head-up display detection device according to an embodiment of the present invention;
FIG. 4 is an enlarged view of portion A of the head-up display detection apparatus of FIG. 1;
description of the reference numerals:
1. calibrating the assembly; 11. a remote calibration plate; 12. a proximal calibration plate;
2. a camera assembly; 21. a camera; 22. a manipulator;
3. calibrating the through holes at the far end; 4. calibrating a through hole at the near end;
5. a detection table; 51. profiling positioning frames; 511. a support panel; 512. positioning columns; 513. profiling supporting blocks;
52. a jacking component; 521. a linear reciprocating device; 522. and (5) a top block.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
The head-up display is also called a head-up display system, and is used for projecting important driving information such as speed of time, navigation and the like onto a front windshield. In order to detect whether the head-up display imaging is qualified, the camera must be ensured to detect in the correct position, and if the position of the camera is not right, the image photographed during the detection of the camera is easy to generate problems of unclear, distortion and the like. At present, a calibration plate is arranged for determining the position of a camera, a calibration hole which can be penetrated by a HUD light path is formed in the calibration plate, then a lens of the camera and the calibration hole in the calibration plate are positioned, but the positioning mode has the reason that the lens of the camera can penetrate the calibration hole at multiple angles, so that the detection precision is limited. Especially for AR-HUD products with longer imaging distance, the detection accuracy is difficult to be ensured.
Based on this, the application provides a new line display detection device, can solve the problem that camera positioning accuracy is not enough.
Referring to fig. 1 to 3, the head-up display detection device of the present invention includes a calibration assembly 1 and a camera assembly 2; the calibration assembly 1 comprises a far-end calibration plate 11 and a near-end calibration plate 12 which are oppositely arranged, the far-end calibration plate 11 is provided with a far-end calibration through hole 3, the near-end calibration plate 12 is provided with a near-end calibration through hole 4, and a fixed light path is formed by connecting the far-end calibration through hole 3 with the near-end calibration through hole 4;
the camera assembly 2 comprises a camera 21 movably arranged at the side of the proximal calibration plate 12 remote from the distal calibration plate 11, and the lens of the camera 21 is directed towards the proximal calibration plate 12.
The connection line between the far-end calibration through hole 3 and the near-end calibration through hole 4 forms a fixed light path which is determined according to the optical data of the front windshield and the projection data of the head-up display light path.
From the above description, the beneficial effects of the invention are as follows: the calibration assembly 1 with the far-end calibration plate 11 and the near-end calibration plate 12 is additionally arranged, and the far-end calibration through hole 3 and the near-end calibration through hole 4 are respectively arranged on the far-end calibration plate 11 and the near-end calibration plate 12, so that a fixed light path can be determined in a straight line manner by the two points of the far-end calibration through hole 3 and the near-end calibration through hole 4, and when the position of the camera 21 is determined, the lens of the camera 21 can penetrate through the far-end calibration through hole 3 and the near-end calibration through hole 4, namely, the lens of the camera 21, the far-end calibration through hole 3 and the near-end calibration through hole 4 are all in the same straight line, and further, the position accuracy of the lens of the camera 21 is guaranteed, and the detection of an AR-HUD product can be met.
As shown in fig. 2 and 3, further, the distal calibration plate 11 is provided with a plurality of distal calibration through holes 3 along a vertical direction, and the proximal calibration plate 12 is provided with a plurality of proximal calibration through holes 4 along a vertical direction.
As can be seen from the above description, the plurality of far-end calibration through holes 3 and the plurality of near-end calibration through holes 4 are respectively provided on the far-end calibration plate 11 and the near-end calibration plate 12 in the vertical direction, so that a plurality of fixed light paths can be formed through the plurality of far-end calibration through holes 3 and the plurality of near-end calibration through holes 4 within the light path range specified by the optical data of the front windshield and the projection data of the head-up display light path, thereby obtaining the position information of the cameras 21 corresponding to the plurality of fixed light paths, so that when the front windshield is detected by the cameras 21 in the later loading, a plurality of groups of data can be analyzed, and the detection accuracy can be improved.
Or the corresponding far-end calibration through hole 3 and the corresponding near-end calibration through hole 4 are selected to form a fixed light path according to different products, so that the use flexibility of the calibration assembly 1 is improved.
In an alternative embodiment, the distance between the distal calibration plate 11 and the proximal calibration plate 12 is 0.8 m to 1.5 m, and the aperture of the distal calibration through hole 3 and the aperture of the proximal calibration through hole 4 are each 1.5 mm to 2.5 mm. Because the smaller the apertures of the far-end calibration through hole 3 and the near-end calibration through hole 4 are, the higher the accuracy of the calibration camera 21 is, and the distances between the far-end calibration plate 11 and the near-end calibration plate 12 are 1 meter, 1.3 meter and 1.5 meter, which are preferable in consideration of the difficulty of production and processing, the apertures of the far-end calibration through hole 3 and the near-end calibration through hole 4 are 1.5 mm, 2 mm and 2.5 mm; most preferably, the distance between the far-end calibration plate 11 and the near-end calibration plate 12 is 1 meter, and the aperture of the far-end calibration through hole 3 and the aperture of the near-end calibration through hole 4 are both 2 millimeters, so that the light path deviation can be controlled to be plus or minus 0.23 degrees.
In another alternative embodiment, the distance between the distal calibration plate 11 and the proximal calibration plate 12 is 0.8 m to 1.5 m, and the distal calibration through hole 3 and the proximal calibration through hole 4 are stepped holes, and the minimum pore diameter is 1.5 mm to 2.5 mm. Because the thicknesses of the far-end calibration plate 11 and the near-end calibration plate 12 are thinner, the minimum apertures of the far-end calibration through hole 3 and the near-end calibration through hole 4 are smaller, the accuracy of the calibration camera 21 is higher, the far-end calibration through hole 3 and the near-end calibration through hole 4 are specially arranged to be stepped holes in consideration of the difficulty of production and processing, the risk of deformation of the far-end calibration plate 11 and the near-end calibration plate 12 due to the thinner plate body can be reduced, the preferable distance between the far-end calibration plate 11 and the near-end calibration plate 12 is 1 meter, 1.3 meter and 1.5 meter, and the apertures of the far-end calibration through hole 3 and the near-end calibration through hole 4 are 1.5 millimeter, 2 millimeter and 2.5 millimeter; most preferably, the distance between the far-end calibration plate 11 and the near-end calibration plate 12 is 1 meter, and the aperture of the far-end calibration through hole 3 and the aperture of the near-end calibration through hole 4 are both 2 millimeters, so that the light path deviation can be controlled to be plus or minus 0.23 degrees.
Referring to fig. 1, further, the camera assembly 2 further includes a manipulator 22, and a hand of the manipulator 22 is connected to the camera 21.
As can be seen from the above description, the manipulator 22 is used for controlling the movement of the camera 21, and can accurately record the position information of the camera 21, so that the camera 21 can be accurately moved to the calibration position when the front windshield is loaded for detection at a later stage.
Referring to fig. 1, further, the above-mentioned head-up display detection device further includes a detection platform 5, a profiling positioning frame 51 is disposed on a top surface of the detection platform 5, the profiling positioning frame 51 has a positioning surface for simulating a loading state of the front windshield, the distal calibration plate 11 and the proximal calibration plate 12 are disposed on the top surface of the detection platform 5, and the distal calibration plate 11 and the proximal calibration plate 12 are respectively disposed on two sides of the positioning surface.
As is clear from the above description, the front windshield is placed on the positioning surface of the profiling positioning frame 51 to simulate the loading state of the front windshield to ensure the detection accuracy.
Meanwhile, the far-end calibration plate 11 and the near-end calibration plate 12 are respectively positioned at two sides of the positioning surface of the profiling positioning frame 51, so that the field occupation amount of the whole head-up display detection device can be reduced.
Referring to fig. 1, further, the profiling positioning rack 51 includes a support panel 511, a positioning column 512 and a profiling support block 513; the support panel 511 comprises a support panel 511, wherein a plurality of positioning columns 512 are arranged on the surface of the support panel 511, and a plurality of positioning columns 512 enclose a profiling positioning space on the surface of the support panel 511, a plurality of profiling support blocks 513 are arranged on the surface of the support panel 511, and the profiling support blocks 513 are positioned in the profiling positioning space.
As is apparent from the above description, when the front windshield is loaded for detection, the positioning column 512 is abutted against the edge of the front windshield, so that the position of the front windshield on the support panel 511 is determined, and the front windshield is supported by the profiling support block 513, so that the loading state of the front windshield is simulated.
Referring to fig. 4, further, a top tightening assembly 52 disposed around the profiling positioning space is disposed on the table top of the detection table 5, the top tightening assembly 52 includes a linear reciprocating device 521 and a top block 522, a movable end of the linear reciprocating device 521 is movable toward the profiling positioning space, and the top block 522 is disposed on the movable end of the linear reciprocating device 521.
As can be seen from the above description, after the loading of the front windshield by the profiling positioning frame 51 is completed, the linear reciprocating device 521 is utilized to drive the top block 522 to move towards the profiling positioning space direction, so that the top block 522 can abut against the edge of the front windshield, thereby clamping the front windshield, so as to avoid the front windshield from moving during the detection process, and affecting the detection result.
In an alternative embodiment, a take-up assembly 52 is provided on the support panel 511.
Example 1
Referring to fig. 1 to 3, a head-up display detection device includes a calibration assembly 1 and a camera assembly 2; the calibration assembly 1 comprises a far-end calibration plate 11 and a near-end calibration plate 12 which are oppositely arranged, the far-end calibration plate 11 is provided with a far-end calibration through hole 3, the near-end calibration plate 12 is provided with a near-end calibration through hole 4, and a fixed light path is formed by connecting the far-end calibration through hole 3 with the near-end calibration through hole 4; the camera assembly 2 comprises a camera 21 movably arranged at the side of the proximal calibration plate 12 remote from the distal calibration plate 11, and the lens of the camera 21 is directed towards the proximal calibration plate 12. A plurality of far-end calibration through holes 3 are formed in the far-end calibration plate 11 along the vertical direction, and a plurality of near-end calibration through holes 4 are formed in the near-end calibration plate 12 along the vertical direction. The distance between the far-end calibration plate 11 and the near-end calibration plate 12 is 1 meter, and the apertures of the far-end calibration through hole 3 and the near-end calibration through hole 4 are 2 millimeters. The camera assembly 2 further comprises a manipulator 22, the hand of the manipulator 22 being connected to the camera 21.
Example two
Referring to fig. 1 to 3, a head-up display detection device includes a calibration assembly 1 and a camera assembly 2; the calibration assembly 1 comprises a far-end calibration plate 11 and a near-end calibration plate 12 which are oppositely arranged, the far-end calibration plate 11 is provided with a far-end calibration through hole 3, the near-end calibration plate 12 is provided with a near-end calibration through hole 4, and a fixed light path is formed by connecting the far-end calibration through hole 3 with the near-end calibration through hole 4; the camera assembly 2 comprises a camera 21 movably arranged at the side of the proximal calibration plate 12 remote from the distal calibration plate 11, and the lens of the camera 21 is directed towards the proximal calibration plate 12. A plurality of far-end calibration through holes 3 are formed in the far-end calibration plate 11 along the vertical direction, and a plurality of near-end calibration through holes 4 are formed in the near-end calibration plate 12 along the vertical direction. The distance between the far-end calibration plate 11 and the near-end calibration plate 12 is 1 meter, the far-end calibration through hole 3 and the near-end calibration through hole 4 are stepped holes, and the minimum aperture is 2 millimeters. The camera assembly 2 further comprises a manipulator 22, the hand of the manipulator 22 being connected to the camera 21.
Example III
The present embodiment further defines that the head-up display detection device further includes a detection table 5 on the basis of the first embodiment or the second embodiment, specifically as follows:
referring to fig. 1, a profiling positioning frame 51 is disposed on the table top of the detection table 5, the profiling positioning frame 51 has a positioning surface for simulating the loading state of the front windshield, the distal calibration plate 11 and the proximal calibration plate 12 are both disposed on the table top of the detection table 5, and the distal calibration plate 11 and the proximal calibration plate 12 are respectively disposed on two sides of the positioning surface. The profiling positioning rack 51 comprises a support panel 511, a positioning column 512 and a profiling support block 513; the support panel 511 comprises a support panel 511, wherein a plurality of positioning columns 512 are arranged on the surface of the support panel 511, and a plurality of positioning columns 512 enclose a profiling positioning space on the surface of the support panel 511, a plurality of profiling support blocks 513 are arranged on the surface of the support panel 511, and the profiling support blocks 513 are positioned in the profiling positioning space. The table top of the detection table 5 is provided with a tightening assembly 52 which is arranged around the profiling positioning space, the tightening assembly 52 comprises a linear reciprocating device 521 and a top block 522, the movable end of the linear reciprocating device 521 can move towards the profiling positioning space, and the top block 522 is arranged on the movable end of the linear reciprocating device 521.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a new line shows detection device which characterized in that: comprises a calibration component and a camera component; the calibration assembly comprises a far-end calibration plate and a near-end calibration plate which are oppositely arranged, the far-end calibration plate is provided with a far-end calibration through hole, the near-end calibration plate is provided with a near-end calibration through hole, and a connecting line of the far-end calibration through hole and the near-end calibration through hole forms a fixed light path;
the camera assembly comprises a camera movably arranged on one side of the near-end calibration plate far away from the far-end calibration plate, and a lens of the camera faces the near-end calibration plate.
2. The head-up display detection apparatus according to claim 1, wherein: the remote calibration plate is provided with a plurality of remote calibration through holes along the vertical direction, and the near calibration plate is provided with a plurality of near calibration through holes along the vertical direction.
3. The head-up display detection apparatus according to claim 1, wherein: the distance between the far-end calibration plate and the near-end calibration plate is 0.8 m to 1.5 m, and the apertures of the far-end calibration through hole and the near-end calibration through hole are 1.5 mm to 2.5 mm.
4. The head-up display detection apparatus according to claim 1, wherein: the distance between the far-end calibration plate and the near-end calibration plate is 0.8 m to 1.5 m, the far-end calibration through hole and the near-end calibration through hole are stepped holes, and the minimum aperture is 1.5 mm to 2.5 mm.
5. The head-up display detection apparatus according to claim 1, wherein: the camera assembly further comprises a manipulator, and a hand of the manipulator is connected with the camera.
6. The head-up display detection apparatus according to claim 1, wherein: the device comprises a front windshield, and is characterized by further comprising a detection table, wherein a profiling locating frame is arranged on the table top of the detection table and is provided with a locating surface for simulating the loading state of the front windshield, the far-end calibration plate and the near-end calibration plate are both arranged on the table top of the detection table, and the far-end calibration plate and the near-end calibration plate are respectively positioned on two sides of the locating surface.
7. The head-up display detection apparatus according to claim 6, wherein: the profiling locating rack comprises a supporting panel, a locating column and a profiling supporting block; the support panel comprises a support panel body and is characterized in that a plurality of positioning columns are arranged on the surface of the support panel body, the positioning columns enclose a profiling positioning space on the surface of the support panel body, a plurality of profiling support blocks are arranged on the surface of the support panel body, and the profiling support blocks are positioned in the profiling positioning space.
8. The head-up display detection apparatus according to claim 7, wherein: the table top of the detection table is provided with a jacking component which surrounds the profiling positioning space, and the jacking component comprises a linear reciprocating mode
The movable end of the linear reciprocating device can move towards the profiling positioning space direction,
the ejector block is arranged on the movable end of the linear reciprocating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311676980.2A CN117516887A (en) | 2023-12-07 | 2023-12-07 | Head-up display detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311676980.2A CN117516887A (en) | 2023-12-07 | 2023-12-07 | Head-up display detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117516887A true CN117516887A (en) | 2024-02-06 |
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ID=89756764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311676980.2A Pending CN117516887A (en) | 2023-12-07 | 2023-12-07 | Head-up display detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117516887A (en) |
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2023
- 2023-12-07 CN CN202311676980.2A patent/CN117516887A/en active Pending
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