Camera assembly and four-wheel positioning device
By capturing images of the wheel targets separately using a dual-lens camera assembly, the problem of low accuracy in four-wheel alignment detection in existing technologies is solved, achieving higher accuracy and efficiency in detection.
Patent Information
- Application Number
- CN202422671146.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-01
AI Technical Summary
In existing technologies, camera components have low detection accuracy when performing four-wheel alignment.
The system employs a dual-lens camera assembly, with the first and second camera bodies capturing target images on the same side of the wheel at different angles. This design allows each camera to focus on capturing images of a specific wheel, and the combined system forms a comprehensive geometric state model to improve detection accuracy and efficiency.
It improves the comprehensiveness and accuracy of detection, achieves higher precision 3D reconstruction, and enhances detection efficiency.
Smart Images
Figure CN223470628U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of detection equipment, and more particularly relates to a camera assembly and a four-wheel alignment device. BACKGROUND
[0002] Four-wheel alignment refers to a process of measuring and adjusting the geometric parameters of four tires of a vehicle to ensure that the contact angle and direction between the tires and the ground meet the use standard.
[0003] In the related art, when performing four-wheel alignment, a target is first installed on each tire, then a camera is used to capture the targets on the two tires on the same side at the same time, then feature points on the targets are detected and extracted through an image processing algorithm, and finally relevant components of the suspension system are adjusted according to the measurement results to complete the four-wheel alignment. However, the above detection method has low precision. UTILITARIAN CONTENT
[0004] The purpose of the embodiments of the present application is to provide a camera assembly and a four-wheel alignment device, aiming to solve the technical problem of low detection precision of the camera assembly in the related art.
[0005] To achieve the above purpose, according to one aspect of the present application, a camera assembly is provided, which is used to be located at the front side or the rear side of a vehicle and to capture images of targets on wheels of the vehicle, the vehicle comprising a first wheel and a second wheel located at the same side; the camera assembly comprises a first camera member, the first camera member comprising a first camera body and a second camera body, the first camera body being used to capture images of targets on the first wheel, the first camera body having a first preset included angle between the shooting direction and the horizontal direction; the second camera body being used to capture images of targets on the second wheel, the second camera body having a second preset included angle between the shooting direction and the horizontal direction; when the first preset included angle is greater than the second preset included angle, the first wheel is located on the side of the second wheel close to the camera assembly; when the first preset included angle is less than the second preset included angle, the first wheel is located on the side of the second wheel away from the camera assembly.
[0006] Optionally, the first camera body is located above the second camera body, and the first preset included angle is less than the second preset included angle.
[0007] Optionally, the direction from the first camera body to the second camera body is perpendicular to the horizontal direction.
[0008] Optionally, the first camera member further comprises a first mounting body having a first mounting space, and a first exposure opening and a second exposure opening are arranged on a surface of the first mounting body and are in communication with the first mounting space; the first camera body and the second camera body are both mounted in the first mounting space, the first camera body captures images outside the first mounting space through the first exposure opening, and the second camera body captures images outside the first mounting space through the second exposure opening.
[0009] Optionally, the vehicle further comprises third and fourth wheels located on the other side; the camera assembly further comprises a second camera member; the second camera member comprises a third camera body and a fourth camera body, the third camera body is used for capturing images of the target on the third wheel, and a third preset included angle is formed between a shooting direction of the third camera body and a horizontal direction; the fourth camera body is used for capturing images of the target on the fourth wheel, and a fourth preset included angle is formed between a shooting direction of the fourth camera body and the horizontal direction; when the third preset included angle is greater than the fourth preset included angle, the third wheel is located on a side closer to the camera assembly than the fourth wheel; when the third preset included angle is less than the fourth preset included angle, the third wheel is located on a side farther away from the camera assembly than the fourth wheel.
[0010] Optionally, the third camera body is located above the fourth camera body, and the third preset included angle is less than the fourth preset included angle.
[0011] Optionally, a direction from the third camera body to the fourth camera body is perpendicular to the horizontal direction.
[0012] Optionally, the second camera member further comprises a second mounting body having a second mounting space, and a third exposure opening and a fourth exposure opening are arranged on a surface of the second mounting body and are in communication with the second mounting space; the third camera body and the fourth camera body are both mounted in the second mounting space, the third camera body captures images outside the second mounting space through the third exposure opening, and the fourth camera body captures images outside the second mounting space through the fourth exposure opening.
[0013] Optionally, the first camera member and the second camera member are symmetrically arranged along a preset symmetry line, the preset symmetry line is perpendicular to the horizontal direction; and / or, the first preset included angle is greater than 0° and less than or equal to 15°; the second preset included angle is greater than 0° and less than or equal to 60°; and / or, the third preset included angle is greater than 0° and less than or equal to 15°; and the fourth preset included angle is greater than 0° and less than or equal to 60°.
[0014] According to another aspect of the present application, a four-wheel alignment device is provided, comprising a column, a base, a crossbeam, a control component and the above-mentioned camera assembly, the column is fixedly connected with the base, the crossbeam is supported by the column and can be raised or lowered relative to the column, the camera assembly is mounted on the crossbeam and is electrically connected with the control component.
[0015] The camera assembly provided by the present application has the beneficial effect that when the camera assembly is used to capture the images of the targets on the wheels, the first camera body captures the images of the targets on the first wheels, while the second camera captures the images of the targets on the second wheels; this way of capturing images not only enables the first camera body to more focusedly capture the images of the targets on the first wheels, and the second camera body to more focusedly capture the images of the targets on the second wheels, thereby improving the comprehensiveness and accuracy of detection, but also enables the first camera body and the second camera body to work simultaneously, thereby improving the detection efficiency. In addition, the above design can also combine the images captured by the first camera body and the images captured by the second camera body to form a more comprehensive geometric state model, thereby realizing higher-precision three-dimensional reconstruction. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0017] Figure 1 The schematic diagram of the four-wheel alignment of the vehicle wheels by the camera assembly provided by the embodiments of the present application;
[0018] Figure 2 The front view schematic diagram of the four-wheel alignment device provided by the embodiments of the present application;
[0019] Figure 3 The structural schematic diagram of the camera assembly provided by the embodiments of the present application after being assembled with the cross beam;
[0020] Figure 4 The enlarged schematic diagram of A in FIG. 4; Figure 3
[0021] The enlarged schematic diagram of B in FIG. 4; Figure 5
[0022] The enlarged schematic diagram of C in FIG. 4; Figure 6 Figure 5 The enlarged schematic diagram of D in FIG. 4;
[0023] Figure 7 Figure 3 The enlarged schematic diagram of B in FIG. 4;
[0024] Figure 8 The enlarged schematic diagram of D in FIG. 4; Figure 5
[0025] The label details involved in the above drawings are as follows:
[0026] 100, first camera member; 110, first camera body; 120, second camera body; 130, first mounting body; 131, first mounting space; 132, first exposed port; 133, second exposed port; 140, first adjusting screw; 150, first scale; 160, second adjusting screw; 170, second scale;
[0027] 200, second camera member; 210, third camera body; 220, fourth camera body; 230, second mounting body; 231, second mounting space; 232, third exposed port; 233, fourth exposed port; 240, third adjusting screw; 250, third scale; 260, fourth adjusting screw; 270, fourth scale;
[0028] 310, column; 320, base; 330, crossbeam;
[0029] 400, first wheel; 500, second wheel; 600, third wheel; 700, fourth wheel; 800, target. DETAILED DESCRIPTION
[0030] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.
[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0033] In addition, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of the indicated technical features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.
[0034] As described in the background, Four-Wheel Alignment refers to a process of measuring and adjusting the geometric parameters of the four tires of a vehicle to ensure that the contact angle and direction between the tires of the vehicle and the ground meet the use standard. In the related art, when performing Four-Wheel Alignment, a target is first installed on each tire, then a camera is used to capture the targets on the two tires on the same side at the same time, then feature points on the targets are detected and extracted through an image processing algorithm, and finally relevant components of the suspension system are adjusted according to the measurement results to complete the Four-Wheel Alignment. However, the accuracy of the above detection method is low.
[0035] Reference Figures 1 to 4 To solve the above problems, according to one aspect of the present application, the embodiments of the present application provide a camera assembly for being located at the front side or the rear side of a vehicle and for capturing images of targets 800 on wheels of the vehicle, the vehicle comprising a first wheel 400 and a second wheel 500 located at the same side; the camera assembly comprising a first camera piece 100, the first camera piece 100 comprising a first camera body 110 and a second camera body 120, the first camera body 110 being configured to capture images of the targets 800 on the first wheel 400, the shooting direction of the first camera body 110 having a first preset included angle with the horizontal direction; the second camera body 120 being configured to capture images of the targets 800 on the second wheel 500, the shooting direction of the second camera body 120 having a second preset included angle with the horizontal direction.
[0036] When the first preset included angle is greater than the second preset included angle, the first wheel 400 is located on the side of the second wheel 500 closer to the camera assembly; when the first preset included angle is less than the second preset included angle, the first wheel 400 is located on the side of the second wheel 500 farther away from the camera assembly.
[0037] In the embodiments of the present application, the target 800 can be any one of a reflective target, a circular or square planar target, a laser target or a three-dimensional target, and the specific form and structure of the target 800 can be determined according to actual needs. The first camera 100 is a double-lens camera, the first camera body 110 is one lens of the double-lens camera and can capture the image of the target 800 on the first wheel 400 alone, and the second camera body 120 is the other lens of the double-lens camera and can capture the image of the target 800 on the second wheel 500 alone; in other embodiments, the first camera body 110 can also be a single-lens camera, and the second camera body 120 can also be a single-lens camera.
[0038] When the camera assembly of the present application is used to capture the image of the target 800 on the wheel, the first camera body 110 captures the image of the target 800 on the first wheel 400 at the same time as the second camera captures the image of the target 800 on the second wheel 500; this way of capturing images not only enables the first camera body 110 to more focusedly capture the image of the target 800 on the first wheel 400 and the second camera body 120 to more focusedly capture the image of the target 800 on the second wheel 500, thereby improving the comprehensiveness and accuracy of detection, but also enables the first camera body 110 and the second camera body 120 to work at the same time, thereby improving the detection efficiency. In addition, the above design can also combine the image captured by the first camera body 110 and the image captured by the second camera body 120 to form a more comprehensive geometric state model, thereby realizing higher-precision three-dimensional reconstruction.
[0039] With reference to Figure 1 and Figure 4 In an embodiment, the first camera body 110 is located above the second camera body 120, and the first preset included angle is smaller than the second preset included angle.
[0040] The above design not only helps the first camera body 110 to more focusedly capture the image of the target 800 on the first wheel 400, but also helps the second camera body 120 to more focusedly capture the image of the target 800 on the second wheel 500, thereby ensuring the comprehensiveness and accuracy of detection. In addition, the above design can also avoid occlusion caused by angle problems and ensure the quality of the captured image. In other embodiments, the first camera body 110 can also be located below the second camera body 120, and the first preset included angle can be greater than the second preset included angle.
[0041] With reference to Figure 1 , Figure 2 and Figure 4 In an embodiment, the directions of the first camera body 110 to the second camera body 120 are perpendicular to the horizontal direction.
[0042] In the embodiment, the directions of the first camera body 110 to the second camera body 120 are parallel to the vertical direction, and in other embodiments, the directions of the first camera body 110 to the second camera body 120 can also have an acute angle with the vertical direction, which is determined according to actual needs. The above design not only helps to further ensure the comprehensiveness and accuracy of detection, but also helps to reduce the volume of the first camera 100 and reduce the manufacturing difficulty and cost of the first camera 100.
[0043] With reference to Figures 4 to 6 In an embodiment, the first camera 100 further comprises a first mounting body 130, the first mounting body 130 has a first mounting space 131, and the surface of the first mounting body 130 is provided with a first exposed port 132 and a second exposed port 133, both of which are in communication with the first mounting space 131.
[0044] The first camera body 110 and the second camera body 120 are both mounted in the first mounting space 131, the first camera body 110 captures images outside the first mounting space 131 through the first exposed port 132, and the second camera body 120 captures images outside the first mounting space 131 through the second exposed port 133.
[0045] In the embodiment, the first mounting body 130 is a mounting shell, which is hollow inside to form the first mounting space 131; the first exposed port 132 is located above the second exposed port 133.
[0046] The first mounting body 130 not only plays a role in mounting and carrying the first camera body 110 and the second camera body 120, but also plays a role in protecting the first camera body 110 and the second camera body 120, which helps to prolong the service life of the first camera 100. In addition, the first exposed port 132 has a first capture inclined surface, which is parallel to the shooting direction of the first camera body 110, so as to avoid the first exposed port 132 from blocking the first camera body 110 and ensure the integrity of the images captured by the first camera body 110. The second exposed port 133 has a second capture inclined surface, which is parallel to the shooting direction of the second camera body 120, so as to avoid the second exposed port 133 from blocking the second camera body 120 and ensure the integrity of the images captured by the second camera body 120.
[0047] With reference to Figure 1 and Figure 4In an embodiment, the first preset angle is greater than 0° and less than or equal to 15°, and the second preset angle is greater than 0° and less than or equal to 60°. In the embodiment, the first preset angle is 5°, 5.5°, 6°, 6.5°, 7.5°, 8° or 8.5°, etc., which is not limited herein, and the second preset angle is 13°, 13.5°, 14°, 14.5° or 15°, etc., which is not limited herein.
[0048] With reference to Figure 5 And Figure 6 In an embodiment, the first camera body 110 is pivoted in the first mounting space 131, and the first camera piece 100 further comprises a first adjusting screw 140, the first mounting body 130 is provided with a first adjusting through hole in communication with the first mounting space 131, the first adjusting screw 140 is in threaded cooperation with the first adjusting through hole and connected with the first camera body 110, and the first adjusting screw 140 can adjust the first preset angle by driving the first camera body 110 to move in the first mounting space 131.
[0049] In the embodiment, the first camera body 110 is pivoted on the inner wall surface provided with the first exposed opening 132 in the first mounting space 131, the length direction of the first adjusting screw 140 is perpendicular to the horizontal direction, and the first adjusting screw 140 is fixedly connected with the first camera body 110 by threaded cooperation or welding. The first adjusting screw 140 is arranged to adjust the first preset angle by fine-tuning the position of the first camera body 110 in the first mounting space 131, which makes the first camera body 110 adapt to different detection environments, widens the application range of the camera assembly and improves the applicability of the camera assembly.
[0050] With reference to Figure 5 And Figure 6 In an embodiment, the first camera piece 100 further comprises a first scale 150, the first scale 150 is installed on the outer surface of the first mounting body 130, and the length direction of the first scale 150 is parallel to the length direction of the first adjusting screw 140. The first scale 150 is arranged to help the operator know the adjustment amount of the first camera body 110, so that the adjustment operation becomes quantifiable and the accuracy of the adjustment operation is improved.
[0051] With reference to Figure 5 And Figure 6In an embodiment, the second camera body 120 is pivoted in the first mounting space 131; the first camera component 100 further comprises a second adjusting screw 160, the first mounting body 130 is provided with a second adjusting through hole in communication with the first mounting space 131, the second adjusting screw 160 is in threaded cooperation with the second adjusting through hole and is connected with the second camera body 120, and the second adjusting screw 160 can adjust the second preset included angle by driving the second camera body 120 to move in the first mounting space 131.
[0052] In the embodiment, the second camera body 120 is pivoted on the inner wall surface provided with the second exposed opening 133 in the first mounting space 131, the length direction of the second adjusting screw 160 is perpendicular to the horizontal direction, and the second adjusting screw 160 is fixedly connected with the second camera body 120 by threaded cooperation or welding. The second adjusting screw 160 is arranged to adjust the second preset included angle by fine adjustment of the position of the second camera body 120 in the first mounting space 131, which makes the second camera body 120 adaptable to different detection environments, and the cooperation of the second adjusting screw 160 with the first adjusting screw 140 further widens the application range of the camera assembly and improves the applicability of the camera assembly.
[0053] Referring to Figure 5 and Figure 6 In an embodiment, the first camera component 100 further comprises a second scale 170, the second scale 170 is installed on the outer surface of the first mounting body 130, and the length direction of the second scale 170 is parallel to the length direction of the second adjusting screw 160. The second scale 170 is arranged to help the operator to know the adjustment amount of the second camera body 120, so that the adjustment operation becomes quantifiable and the accuracy of the adjustment operation is improved.
[0054] Referring to Figures 1 to 3 and Figure 7 In an embodiment, the vehicle further comprises a third wheel 600 and a fourth wheel 700 located on the other side; the camera assembly further comprises a second camera component 200; the second camera component 200 comprises a third camera body 210 and a fourth camera body 220, the third camera body 210 is used for capturing the image of the target 800 on the third wheel 600, and the shooting direction of the third camera body 210 has a third preset included angle with the horizontal direction; the fourth camera body 220 is used for capturing the image of the target 800 on the fourth wheel 700, and the shooting direction of the fourth camera body 220 has a fourth preset included angle with the horizontal direction.
[0055] When the third preset included angle is greater than the fourth preset included angle, the third wheel 600 is located on the side of the fourth wheel 700 close to the camera assembly; when the third preset included angle is less than the fourth preset included angle, the third wheel 600 is located on the side of the fourth wheel 700 away from the camera assembly.
[0056] In the embodiment, the second camera component 200 is located on one side of the first camera component 100; the second camera component 200 is a double-lens camera, the third camera body 210 is one lens of the double-lens camera and can capture the image of the target 800 on the third wheel 600 alone, and the fourth camera body 220 is the other lens of the double-lens camera and can capture the image of the target 800 on the fourth wheel 700 alone; in other embodiments, the third camera body 210 can also be a single-lens camera, and the fourth camera body 220 can also be a single-lens camera.
[0057] When the camera assembly of the present application is used to capture the image of the target 800 on the wheel, the third camera body 210 captures the image of the target 800 on the third wheel 600 at the same time, and the fourth camera captures the image of the target 800 on the fourth wheel 700; this way of capturing the image not only enables the third camera body 210 to more focusedly capture the image of the target 800 on the third wheel 600 and the fourth camera body 220 to more focusedly capture the image of the target 800 on the fourth wheel 700, thereby improving the comprehensiveness and accuracy of detection, but also enables the third camera body 210 and the fourth camera body 220 to work at the same time, thereby improving the detection efficiency. In addition, the use of the second camera component 200 in cooperation with the first camera component 100 can further improve the comprehensiveness and accuracy of detection, and further improve the detection efficiency.
[0058] In addition, the above design can combine the image captured by the third camera body 210 and the image captured by the fourth camera body 220 to form a more comprehensive geometric state model, which, in cooperation with the first camera body 110 and the second camera body 120, can realize higher-precision three-dimensional reconstruction.
[0059] Referring to Figure 2 , Figure 3 and Figure 7 In an embodiment, the third camera body 210 is located above the fourth camera body 220, and the third preset included angle is smaller than the fourth preset included angle.
[0060] The above design not only helps the third camera body 210 to more focusedly capture the image of the target 800 on the third wheel 600, but also helps the fourth camera body 220 to more focusedly capture the image of the target 800 on the fourth wheel 700, thereby ensuring the comprehensiveness and accuracy of detection. In addition, the above design can also avoid the shielding caused by the angle problem and ensure the quality of the captured image. In other embodiments, the third camera body 210 can also be located below the fourth camera body 220, and the third preset included angle is greater than the fourth preset included angle.
[0061] Referring toFigure 2 、 Figure 3 and Figure 7 In an embodiment, the third camera body 210 to the fourth camera body 220 are perpendicular to the horizontal direction.
[0062] In the embodiment, the third camera body 210 to the fourth camera body 220 are parallel to the vertical direction. In other embodiments, the third camera body 210 to the fourth camera body 220 can also have an acute angle with the vertical direction, which is determined according to actual needs. The above design not only helps to further ensure the comprehensiveness and accuracy of detection, but also helps to reduce the volume of the second camera 200 and the manufacturing difficulty and cost of the second camera 200.
[0063] Referring to Figure 2 、 Figure 3 、 Figure 5 、 Figure 7 and Figure 8 In an embodiment, the second camera 200 further comprises a second mounting body 230, the second mounting body 230 has a second mounting space 231, and the surface of the second mounting body 230 is provided with a third exposed port 232 and a fourth exposed port 233, both of which are in communication with the second mounting space 231.
[0064] The third camera body 210 and the fourth camera body 220 are both mounted in the second mounting space 231, the third camera body 210 captures images outside the second mounting space 231 through the third exposed port 232, and the fourth camera body 220 captures images outside the second mounting space 231 through the fourth exposed port 233.
[0065] In the embodiment, the second mounting body 230 is a mounting shell, which is hollow inside to form the second mounting space 231; the third exposed port 232 is located above the fourth exposed port 233.
[0066] The second mounting body 230 not only serves as a mounting and bearing for the third camera body 210 and the fourth camera body 220, but also protects the third camera body 210 and the fourth camera body 220, thereby prolonging the service life of the second camera assembly 200. In addition, the third exposure opening 232 has a third capture slope parallel to the shooting direction of the third camera body 210, so as to avoid the third exposure opening 232 from blocking the third camera body 210 and ensure the integrity of the image captured by the third camera body 210. The fourth exposure opening 233 has a fourth capture slope parallel to the shooting direction of the fourth camera body 220, so as to avoid the fourth exposure opening 233 from blocking the fourth camera body 220 and ensure the integrity of the image captured by the fourth camera body 220.
[0067] Referring to Figure 6 and Figure 8 In an embodiment, the second camera body 120 is pivoted in the second mounting space 231; the second camera assembly 200 further comprises a third adjusting screw 240, the second mounting body 230 is provided with a third adjusting through hole in communication with the second mounting space 231, the third adjusting screw 240 is threadedly matched with the third adjusting through hole and connected with the second camera body 120, and the third adjusting screw 240 can adjust the third preset included angle by moving the third camera body 210 in the second mounting space 231.
[0068] In the embodiment, the third camera body 210 is pivoted on the inner wall surface of the second mounting space 231 provided with the third exposure opening 232, the length direction of the third adjusting screw 240 is perpendicular to the horizontal direction, and the third adjusting screw 240 is fixedly connected with the third camera body 210 by threadedly matching or welding. The third adjusting screw 240 can adjust the third preset included angle by fine-tuning the position of the third camera body 210 in the second mounting space 231, so that the third camera body 210 can adapt to different detection environments, thereby widening the application range of the camera assembly and improving the applicability of the camera assembly.
[0069] Referring to Figure 6 and Figure 8 In an embodiment, the second camera assembly 200 further comprises a third scale 250, the third scale 250 is installed on the outer surface of the second mounting body 230, and the length direction of the third scale 250 is parallel to the length direction of the third adjusting screw 240. The third scale 250 helps the operator to know the adjustment amount of the third camera body 210, so that the adjustment operation becomes quantifiable and the accuracy of the adjustment operation is improved.
[0070] Referring to Figure 6 and Figure 8In one embodiment, the fourth camera body 220 is pivotally connected to the second installation space 231; the second camera component 200 also includes a fourth adjusting screw 260, and the second installation body 230 is provided with a fourth adjusting through hole connected to the second installation space 231. The fourth adjusting screw 260 is threadedly engaged with the fourth adjusting through hole and is connected to the fourth camera body 220. The fourth adjusting screw 260 can adjust the fourth preset angle by driving the fourth camera body 220 to move in the second installation space 231.
[0071] In this embodiment, the fourth camera body 220 is pivotally connected to an inner wall surface of the second installation space 231, which is provided with a fourth exposed opening 233. The length direction of the fourth adjustment screw 260 is perpendicular to the horizontal direction, and the fourth adjustment screw 260 is fixedly connected to the fourth camera body 220 by threaded engagement or welding. The fourth adjustment screw 260 is configured to adjust the fourth preset angle by fine-tuning the position of the fourth camera body 220 within the second installation space 231. This design enables the fourth camera body 220 to adapt to different inspection environments. Its use in conjunction with the third adjustment screw 240 further broadens the scope of application of the camera assembly and improves the applicability of the camera assembly.
[0072] Reference Figure 6 and Figure 8 In one embodiment, the second camera assembly 200 further includes a fourth scale 270 mounted on an outer surface of the second mounting body 230. The length of the fourth scale 270 is parallel to the length of the fourth adjustment screw 260. The fourth scale 270 helps the operator understand the adjustment amount of the fourth camera body 220, making the adjustment operation quantifiable and improving the accuracy of the adjustment operation.
[0073] Reference Figure 6 and Figure 8 In one embodiment, the first camera unit 100 and the second camera unit 200 are symmetrically arranged along a predetermined line of symmetry, which is perpendicular to the horizontal direction. This design not only enables the first camera unit 100 and the second camera unit 200 to simultaneously capture images of the targets 800 on all four wheels of the vehicle, thereby improving the comprehensiveness, accuracy, and efficiency of inspection, but also effectively reduces manufacturing difficulty and cost.
[0074] Reference Figure 1 and Figure 7 In one embodiment, the third preset angle is greater than 0° and less than or equal to 15°; the fourth preset angle is greater than 0° and less than or equal to 60°. The third preset angle is 5°, 5.5°, 6°, 6.5°, 7.5°, 8°, or 8.5°, etc., and is not specifically limited here. The fourth preset angle is 13°, 13.5°, 14°, 14.5°, or 15°, etc., and is not specifically limited here.
[0075] Referring to Figures 1 to 8 According to another aspect of the present application, the embodiment of the present application further provides a four-wheel alignment device, which comprises a column 310, a base 320, a crossbeam 330, a control component and the above-mentioned camera assembly, the column 310 is fixedly connected with the base 320, the crossbeam 330 is supported by the column 310 and can be raised or lowered relative to the column 310, and the camera assembly is installed on the crossbeam 330 and electrically connected with the control component.
[0076] In the embodiment of the present application, the column 310 is vertically arranged, the base 320 is located below the column 310, and the crossbeam 330 is horizontally arranged; the first camera 100 and the second camera 200 are respectively installed at opposite ends of the crossbeam 330. The column 310, the base 320 and the crossbeam 330 used in cooperation not only play the role of installing and carrying the camera assembly, but also play the role of adjusting the position of the camera assembly. The control component is a controller or a control box, and the first camera 100 and the second camera 200 are electrically connected with the control component to perform algorithm processing on the images captured by the first camera body 110, the second camera body 120, the third camera body 210 and the fourth camera body 220, so as to give the measurement results; the control component arranged not only plays the role of converting the images into visual information, but also can realize linkage of each component in the four-wheel alignment device, so as to realize automatic processing and effectively improve the processing efficiency of the four-wheel alignment device.
[0077] In summary, the camera assembly and the four-wheel alignment device provided by the embodiment have at least the following beneficial technical effects: when the camera assembly of the present application is used to capture the images of the targets 800 on the wheels, the first camera body 110 captures the images of the targets 800 on the first wheel 400, and at the same time, the second camera captures the images of the targets 800 on the second wheel 500; this way of capturing images not only enables the first camera body 110 to more focusedly capture the images of the targets 800 on the first wheel 400 and the second camera body 120 to more focusedly capture the images of the targets 800 on the second wheel 500, so as to improve the comprehensiveness and accuracy of detection, but also enables the first camera body 110 and the second camera body 120 to work simultaneously, so as to improve the detection efficiency. In addition, the above design can also combine the images captured by the first camera body 110 and the second camera body 120 to form a more comprehensive geometric state model, so as to realize higher-precision three-dimensional reconstruction.
[0078] The above only describes the preferred embodiments of the present application and should not be used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A camera assembly, characterized by The application relates to a camera assembly for capturing images of targets on wheels of a vehicle, the vehicle comprising a first wheel and a second wheel located on the same side of the vehicle. The camera assembly comprises a first camera component, the first camera component comprising a first camera body and a second camera body, the first camera body being configured to capture images of targets on the first wheel, the first camera body having a first preset angle between a shooting direction and a horizontal direction, and the second camera body being configured to capture images of targets on the second wheel, the second camera body having a second preset angle between a shooting direction and the horizontal direction. When the first preset angle is greater than the second preset angle, the first wheel is located on a side of the second wheel close to the camera assembly; when the first preset angle is less than the second preset angle, the first wheel is located on a side of the second wheel away from the camera assembly.
2. The camera assembly of claim 1, wherein, The first camera body is located above the second camera body, and the first preset angle is less than the second preset angle.
3. The camera assembly of claim 2, wherein, The direction from the first camera body to the second camera body is perpendicular to the horizontal direction.
4. The camera assembly of claim 1, wherein, The first camera component further comprises a first mounting body having a first mounting space, and the first mounting body is provided with a first exposure opening and a second exposure opening on a surface thereof, the first exposure opening and the second exposure opening both being in communication with the first mounting space. The first camera body and the second camera body are both mounted in the first mounting space, the first camera body captures images outside the first mounting space through the first exposure opening, and the second camera body captures images outside the first mounting space through the second exposure opening.
5. The camera assembly of any one of claims 1 to 4, wherein, The vehicle further comprises a third wheel and a fourth wheel located on the other side of the vehicle, and the camera assembly further comprises a second camera component. The second camera component comprises a third camera body and a fourth camera body, the third camera body being configured to capture images of targets on the third wheel, the third camera body having a third preset angle between a shooting direction and the horizontal direction, and the fourth camera body being configured to capture images of targets on the fourth wheel, the fourth camera body having a fourth preset angle between a shooting direction and the horizontal direction. When the third preset angle is greater than the fourth preset angle, the third wheel is located on a side of the fourth wheel close to the camera assembly; when the third preset angle is less than the fourth preset angle, the third wheel is located on a side of the fourth wheel away from the camera assembly.
6. The camera assembly of claim 5, wherein, The third camera body is located above the fourth camera body, and the third preset angle is less than the fourth preset angle.
7. The camera assembly of claim 6, wherein, The direction from the third camera body to the fourth camera body is perpendicular to the horizontal direction.
8. The camera assembly of claim 5, wherein, The second camera component further comprises a second mounting body having a second mounting space, and the second mounting body is provided with a third exposure opening and a fourth exposure opening on a surface thereof, the third exposure opening and the fourth exposure opening both being in communication with the second mounting space. The third camera body and the fourth camera body are both installed in the second installation space, the third camera body captures images outside the second installation space through a third exposure opening, and the fourth camera body captures images outside the second installation space through a fourth exposure opening.
9. The camera assembly of claim 5, wherein, The first camera member and the second camera member are symmetrically arranged along a preset symmetry line, and the preset symmetry line is perpendicular to the horizontal direction; and / or, The first preset included angle is greater than 0° and less than or equal to 15°, and the second preset included angle is greater than 0° and less than or equal to 60°; and / or, The third preset included angle is greater than 0° and less than or equal to 15°, and the fourth preset included angle is greater than 0° and less than or equal to 60°.
10. A four-wheel alignment device characterized by, A camera assembly as claimed in any one of claims 1 to 9, comprising a stand, a base, a crossbeam, a control component, and the camera assembly is installed on the crossbeam and electrically connected with the control component.