Calibration device and four-wheel aligner
By using self-luminous calibration parts and calibration devices with specific structures in four-wheel positioning detection, the problem of poor image acquisition effect is solved, and the accuracy and accuracy of detection are improved.
Patent Information
- Application Number
- CN202422207360.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In the existing four-wheel positioning detection, the image information of the calibration device captured by the image acquisition part is poor, and it is difficult to meet the high-precision detection needs.
The self-luminous calibration component is adopted, combined with the laminated structure of the lamp plate, astigmatism plate and target plate, and the self-luminous calibration component emits light itself, and shoots with the image acquisition component to improve the image clarity.
Accurate determination of position information between calibration devices is achieved, and the accuracy and accuracy of four-wheel positioning detection is improved.
Smart Images
Figure CN223228946U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of vehicle detection technology, and in particular relates to a calibration device and a four-wheel aligner. Background Art
[0002] The significance of four-wheel alignment detection is to ensure that the relative positions of the car's tires, steering mechanism and front and rear axles are maintained in a correct balanced state, thereby improving driving safety, reducing fuel consumption, extending tire life, and improving driving comfort.
[0003] In order to detect the four-wheel alignment parameters of a vehicle, it is usually necessary to use an intelligent four-wheel aligner to perform four-wheel alignment detection on the vehicle, so as to adjust the four-wheel parameters of the vehicle and ensure that the vehicle has good driving performance and driving stability; in the detection process of some four-wheel aligners, two calibration devices of the four-wheel aligner are installed on opposite sides of the vehicle along the width direction, and the image acquisition component of one calibration device needs to capture image information of the calibration component of the other calibration device to facilitate the analysis of the image information to obtain the position information between the two calibration devices; however, in the actual detection process, the image acquisition component does not achieve good results in capturing the image information of the calibration component, which makes it difficult to meet higher detection requirements.
[0004] The above statements are only used to provide background information related to the present application and do not necessarily constitute prior art. Utility Model Content
[0005] The purpose of the present application is to provide a calibration device and a four-wheel aligner, aiming to solve the technical problem in the related art that the image information of the calibration part captured by the image acquisition component in the calibration device is not good and it is difficult to meet higher detection requirements.
[0006] To achieve the above-mentioned purpose, the technical solution adopted in this application is: a calibration device, including a mounting base and a position detection module, the mounting base is used to be installed on the first side of the vehicle; the position detection module is installed on the mounting base, the position detection module includes a first calibration component, the first calibration component is used for shooting by a first image acquisition component of the calibration device located on the second side of the vehicle to obtain image information of the first calibration component, the first side and the second side are respectively two opposite sides of the vehicle relatively distributed along the width direction; wherein, the first calibration component is a self-luminous calibration component.
[0007] Optionally, the calibration device includes a first control device, the position detection module includes a second image acquisition component, the second image acquisition component is used to photograph the second calibration component of the calibration device located on the second side of the vehicle to obtain image information of the second calibration component, and the first control device is connected to the second image acquisition component to receive the image information of the second calibration component and process the image information of the second calibration component.
[0008] Optionally, the first calibration component includes a light board, a light scattering plate and a target board, and the light board, the light scattering plate and the target board are stacked in sequence.
[0009] Optionally, the surface of the target plate facing away from the light board has a plurality of calibration areas, and the distances between at least two calibration areas and the light board are different.
[0010] Optionally, there are multiple first calibration pieces, and along the width direction of the vehicle, at least two first calibration pieces are at different distances from the vehicle; the projections of the two first calibration pieces at different distances from the vehicle along the width direction of the vehicle at least partially do not overlap.
[0011] Optionally, the number of first calibration members is four, and the first first calibration member and the third first calibration member are spaced apart along the length direction of the vehicle; the second first calibration member is located on the lower side of the first calibration member and on the side of the first first calibration member close to the vehicle, and the fourth first calibration member is located on the upper side of the first first calibration member and on the side of the first first calibration member away from the vehicle.
[0012] Optionally, the calibration device further includes a second image acquisition component, which is used to photograph a second calibration component of the calibration device located on the second side to obtain image information of the second calibration component, and the second image acquisition component is located in the middle of the multiple first calibration components.
[0013] Optionally, the light emitted by the first calibration member is invisible light.
[0014] Optionally, the calibration device includes a shell, the shell includes a shell and a light-transmitting member, the shell is mounted on the mounting seat, the first calibration member is located in the shell, the shell is provided with a first window on the side facing the vehicle, the light-transmitting member is mounted on the first window and seals the first window, the light-transmitting member can allow at least part of the light emitted by the first calibration member to pass through, and the light-transmitting member can block at least part of the visible light.
[0015] Another technical solution adopted in the present application is: a four-wheel aligner, comprising the above-mentioned calibration device.
[0016] The above one or more technical solutions in the calibration device and four-wheel aligner provided by the present application have at least one of the following technical effects: during detection, the calibration device located on the first side of the vehicle is arranged opposite to the calibration device located on the second side of the vehicle, and the first image acquisition component of the calibration device located on the second side shoots the first calibration component of the calibration device located on the first side to obtain image information of the first calibration component, so as to facilitate subsequent analysis of the image information of the first calibration component to obtain the position information of the calibration devices located on the first side and the second side; and the first calibration component of the embodiment of the present application is a self-luminous calibration component, which can emit light by itself, so that the first image acquisition component can shoot and obtain clear image information of the first calibration component, and the shooting effect of the first image acquisition component is good, so that the position information between the two calibration devices can be determined more accurately, which is conducive to improving the accuracy of four-wheel alignment detection.
[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0019] Figure 1 A schematic diagram of the structure of the four-wheel aligner provided in some embodiments of the present application when detecting a vehicle.
[0020] Figure 2 for Figure 1 Schematic diagram of the structure of the calibration device shown in .
[0021] Figure 3 for Figure 2 Schematic diagram of the exploded view of the calibration device shown in .
[0022] Figure 4 for Figure 2 The structure of the calibration device shown in the figure is shown after the shell is hidden. Figure 1 .
[0023] Figure 5 for Figure 4 Schematic diagram of the structure of the first calibration member and the third bracket shown in .
[0024] Figure 6 for Figure 5Schematic diagram of the exploded view of the first calibration member and the third bracket shown.
[0025] Figure 7 for Figure 2 The structure of the calibration device shown in the figure is shown after the shell is hidden. Figure 2 .
[0026] Figure 8 for Figure 7 Schematic diagram of the structure of the image acquisition unit shown in .
[0027] Figure 9 for Figure 8 The exploded schematic diagram of the image acquisition unit is shown.
[0028] Among them, the reference numerals in the figures are:
[0029] 1000, wheel aligner; 100, calibration device; 101, first calibration device; 102, second calibration device; 110, mounting base; 111, base; 111a, magnetic surface; 1111, magnetic member; 1112, indicator unit; 112, support assembly; 1121, support frame; 1122, mounting plate; 11221, mounting surface; 120, image acquisition module; 121, image acquisition unit; 1211, camera; 12111, lens; 1212, fill light; 12121, base plate; 1212a, through-hole; 12122, light-emitting member; 1213, first bracket; 1214, second bracket ;130. First control device;140. Position detection module;141. First calibration component;1411. Light board;1412. Diffuser plate;1413. Target plate;142. Second image acquisition component;143. Third bracket;144. Fourth bracket;150. Outer shell;151. Shell;1511. First shell;1512. Second shell;1513. Third shell;1514. First window;1515. Second window;1516. Handle;152. Light-transmitting component;200. Third calibration component;300. Hub clamping device;2000. Vehicle;2100. Wheel to be tested;3000. Carrying mechanism. DETAILED DESCRIPTION
[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.
[0032] In the description of the embodiments of this application, the technical terms "first," "second," etc., are used solely to distinguish between different objects and should not be understood to indicate or imply relative importance, or to implicitly specify the quantity, specific order, or primary-secondary relationship of the technical features indicated. Therefore, a feature designated "first" or "second" may explicitly or implicitly include one or more of such features.
[0033] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments in any suitable manner.
[0034] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.
[0035] In the description of the embodiments of this application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more (including two groups), and "multiple sheets" refers to two or more (including two sheets). "Several" means one or more, unless otherwise specifically defined.
[0036] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application.
[0037] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.
[0038] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, when an element is referred to as being “fixed to” or “disposed on” another element, it may 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 may be directly connected to the other element or indirectly connected to the other element.
[0039] The significance of four-wheel alignment detection is to ensure that the relative positions of the car's tires, steering mechanism and front and rear axles are maintained in a correct balanced state, thereby improving driving safety, reducing fuel consumption, extending tire life, and improving driving comfort.
[0040] In order to detect the four-wheel alignment parameters of a vehicle, it is usually necessary to use an intelligent four-wheel aligner to perform four-wheel alignment detection on the vehicle, so as to adjust the four-wheel parameters of the vehicle and ensure that the vehicle has good driving performance and driving stability; in the detection process of some four-wheel aligners, the two calibration devices of the four-wheel aligner are installed on opposite sides of the vehicle in the width direction, and the image acquisition component of one calibration device needs to capture the image information of the calibration component of the other calibration device, so as to facilitate the analysis of the image information to obtain the position information between the two calibration devices, and then obtain the four-wheel alignment detection of the vehicle; but in some calibration devices, the calibration component is illuminated by an external light source, the calibration component blocks part of the light, and the image acquisition component captures the calibration component to obtain an image of the calibration component. In this way, the image information of the calibration component captured by the image acquisition component is not good, and it is difficult to meet higher detection requirements.
[0041] Based on this, an embodiment of the present application provides a calibration device, in which the first calibration part of the calibration device is a self-luminous calibration part. The self-luminous calibration part can emit light by itself, so that the first image acquisition part can capture clear image information of the first calibration part. The first image acquisition part has a good shooting effect, which is conducive to improving the accuracy of four-wheel alignment detection.
[0042] An embodiment of the present application provides a calibration device that can be used in a four-wheel aligner to detect the four-wheel alignment information of a vehicle, such as parameters such as the kingpin caster angle, kingpin inclination angle, front wheel camber angle, and front wheel toe angle; of course, the calibration device can also be used in other equipment for detecting wheels.
[0043] The following description takes a four-wheel alignment instrument as an example.
[0044] In some embodiments, see Figure 1 As shown, the four-wheel aligner 1000 includes four third calibration pieces 200 and two calibration devices 100. The two calibration devices 100 are respectively installed on the left and right sides of the vehicle 2000. The four third calibration pieces 200 are respectively installed on the four wheels of the vehicle 2000. The calibration device 100 located on the left side of the vehicle 2000 shoots the third calibration pieces 200 on the left front wheel and the left rear wheel of the vehicle 2000 to obtain image information of the third calibration pieces 200 installed on the left front wheel and the left rear wheel of the vehicle 2000; The calibration device 100 on the right side of the vehicle 2000 captures image information of the third calibration part 200 on the right front wheel and the right rear wheel of the vehicle 2000. The two calibration devices 100 can capture images of each other to obtain image information; the four-wheel aligner 1000 obtains the position information between the two calibration devices 100 and the positions of the four wheels relative to the two calibration devices 100 based on the obtained image information, and obtains the four-wheel alignment information of the vehicle 2000 based on these position information and the obtained image information.
[0045] In some embodiments, the third calibration member 200 can be installed on the hub of the wheel 2100 to be tested through the hub clamping device 300. The fixed stability and reliability of the third calibration member 200 are conducive to improving the detection accuracy of the four-wheel aligner 1000.
[0046] In some embodiments, the third calibration element 200 may be a target, such as a self-luminous target, a three-dimensional target, etc.
[0047] In some embodiments, the four-wheel aligner 1000 is used in conjunction with a supporting mechanism 3000 (e.g., a lift, etc.), the vehicle 2000 rests on the supporting mechanism 3000, and the supporting mechanism 3000 lifts the vehicle 2000 to facilitate the four-wheel alignment detection of the four-wheel aligner 1000, and the calibration device 100 is installed on the supporting mechanism 3000 to facilitate the installation and fixation of the calibration device 100.
[0048] For the convenience of explanation below, the length direction of the vehicle 2000 can be found in the attached Figure 1 The X-axis in the vehicle 2000 and the width direction can be found in the attached diagram. Figure 1 The Y-axis in the figure and the height direction of the vehicle 2000 can be found in the attached Figure 2 The Z axis in .
[0049] See Figures 2-4 As shown, in one embodiment of the present application, a calibration device 100 is provided, including a mounting base 110 and a position detection module 140, the mounting base 110 is used to be installed on a first side of the vehicle 2000; the position detection module 140 is installed on the mounting base 110, the position detection module 140 includes a first calibration member 141, the first calibration member 141 is used for being photographed by a first image acquisition member of the calibration device 100 located on a second side of the vehicle 2000 to obtain image information of the first calibration member 141, the first side and the second side are respectively two opposite sides of the vehicle 2000 relatively distributed along the width direction; wherein the first calibration member 141 is a self-luminous calibration member.
[0050] The mounting base 110 may refer to a component for supporting the position detection module 140 . The mounting base 110 may be fixed on a lift to achieve fixation of the calibration device 100 .
[0051] The first side and the second side of the vehicle 2000 may refer to the left side and the right side of the vehicle 2000, respectively. When the vehicle 2000 is inspected, calibration devices 100 are installed on both the first side and the second side of the vehicle 2000, wherein the calibration device 100 located on the first side may be referred to as the first calibration device 101, and the calibration device 100 located on the second side may be referred to as the second calibration device 102. The first calibration device 101 includes a first calibration component 141, and the second calibration device 102 includes a first image acquisition component. The first image acquisition component and the first calibration component 141 are respectively located on opposite sides of the vehicle 2000 and arranged opposite to each other. The first image acquisition component photographs the first calibration component 141 to obtain image information of the first calibration component 141. The first image acquisition component obtains the image information of the first calibration component 141 and feeds it back to the second control device of the second calibration device 102. The second control device may receive the image information of the first calibration component 141 and process the image information of the first calibration component 141 to obtain position information between the first calibration device 101 and the second calibration device 102.
[0052] Here, "processing" may refer to transmitting the image information of the first calibration member 141 to an external device, analyzing the image information of the first calibration member 141 using the external device, and thereby obtaining the position information between the first calibration device 101 and the second calibration device 102; "processing" may also refer to parsing the image information of the first calibration member 141, and thereby obtaining the position information between the first calibration device 101 and the second calibration device 102. The second control device may be, but is not limited to, a control module (e.g., a motherboard), and may also be a tablet, a mobile phone, or other computer device.
[0053] The structures of the first calibration device 101 and the second calibration device 102 may be the same or different.
[0054] The first image acquisition component may refer to a component capable of capturing image information of the first calibration component 141 . The first image acquisition component may be, but is not limited to, a camera 1211 or a camera head. For example, the first image acquisition component may be, but is not limited to, an infrared camera 1211 or a black and white camera 1211 .
[0055] The first calibration element 141 is a component capable of being captured by the first image acquisition element to obtain image information. For example, the first calibration element 141 includes specific patterns or feature points, such as a checkerboard or dot pattern, that can be captured by the first image acquisition element and used for calculation. For example, during the detection process, the first image acquisition element captures image information of the first calibration element 141, then extracts feature information of the specific patterns or feature points in the image information and uses this feature information to calculate the position information between the first calibration device 101 and the second calibration device 102.
[0056] The first calibration element 141 is a self-luminous calibration element. It can be understood that the self-luminous calibration element has its own light source, thereby achieving self-luminescence of the self-luminous calibration element.
[0057] In the calibration device 100 of the embodiment of the present application, during detection, the calibration device 100 located on the first side of the vehicle 2000 is arranged opposite to the calibration device 100 located on the second side of the vehicle 2000, and the first image acquisition component of the calibration device 100 located on the second side shoots the first calibration component 141 of the calibration device 100 located on the first side to obtain image information of the first calibration component 141, so as to facilitate subsequent analysis of the image information of the first calibration component 141 to obtain position information between the two calibration devices 100 located on the first side and the second side; and the first calibration component 141 of the embodiment of the present application is a self-luminous calibration component, which can emit light by itself, so that the first image acquisition component can shoot and obtain clear image information of the first calibration component 141. The first image acquisition component has a good shooting effect, which is conducive to improving the accuracy of four-wheel alignment detection.
[0058] In some embodiments, the calibration device 100 includes a shell 150, which is fixed to the mounting base 110 and covers the first calibration member 141 to protect the first calibration member 141; the shell 150 has a first window 1514, and the first window 1514 is used for the light emitted by the first calibration member 141 to emit, so that the first image detection member can capture the first calibration member 141.
[0059] In some embodiments, the calibration device 100 includes a first control device 130, the position detection module 140 includes a second image acquisition component 142, the second image acquisition component 142 is used to photograph the second calibration component of the calibration device 100 located on the second side of the vehicle 2000 to obtain image information of the second calibration component, the first control device 130 is connected to the second image acquisition component 142 to receive the image information of the second calibration component and process the image information of the second calibration component.
[0060] The second image acquisition component 142 may refer to a component that can capture image information of the second calibration component. The second image acquisition component 142 may be, but is not limited to, a camera 1211 or a camera. The structures of the first image acquisition component and the second image acquisition component 142 may be the same or different.
[0061] The second calibration element can be captured by the second image acquisition component 142 to obtain image information. The second calibration element includes specific patterns or feature points, such as a checkerboard or dot pattern, that can be captured and used for calculations by the second image acquisition component 142. For example, during the detection process, the second image acquisition component 142 captures the image information of the second calibration element, extracts feature information of the specific patterns or feature points in the image information, and uses this feature information to calculate the position information between the two calibration devices 100. The structure of the first calibration element 141 can be the same as or different from that of the second calibration element.
[0062] The first control device 130 may be a component capable of transmitting data with the second image acquisition component 142. The control device and the second image acquisition component 142 may be connected via a wire harness or wirelessly. The first control device 130 may receive image information of the second calibration component fed back by the second image acquisition component 142 and process the image information of the second calibration component. "Processing" may refer to transmitting the image information of the second calibration component to an external device, using the external device to analyze the image information of the second calibration component, thereby obtaining positional information between the two calibration devices 100. "Processing" may also refer to parsing the image information of the second calibration component to obtain positional information of the calibration device 100. The first control device 130 may be, but is not limited to, a circuit board, a tablet, a mobile phone, or other components.
[0063] When the calibration device 100 of the embodiment of the present application is in use, the first image acquisition component photographs the first calibration component 141 to obtain image information of the first calibration component 141, and the second image acquisition component 142 photographs the second calibration component to obtain image information of the second calibration component. In this way, the image information of the first calibration component 141 and the image information of the second calibration component can be analyzed to obtain the position information between the two calibration devices 100. During the analysis process, the two image information can be used as a reference to each other, thereby improving the accuracy of determining the position information between the two calibration devices 100 and improving the accuracy of the four-wheel alignment detection.
[0064] In some embodiments, see Figure 5 and Figure 6 As shown, the first calibration component 141 includes a light board 1411, a light diffusion plate 1412 and a target plate 1413, and the light board 1411, the light diffusion plate 1412 and the target plate 1413 are stacked in sequence.
[0065] The light board 1411 may refer to an electronic board used for lighting or display. The light board 1411 may be, but is not limited to, an LED light board, an LCD backlight light board, an OLED light board, a flexible light board, a UV light board, or an infrared light board.
[0066] The diffuser 1412 , also known as a diffusion plate, can evenly diffuse light to reduce direct reflection and refraction of light. The diffuser 1412 can be made of materials such as polymethyl methacrylate, polystyrene, polycarbonate, and polypropylene.
[0067] The target plate 1413 may refer to a characteristic image or characteristic point that can be photographed by the first image acquisition component. The surface of the target plate 1413 facing away from the light board 1411 forms a calibration surface, and the characteristic image or characteristic point is located on the calibration surface for the first image acquisition component to photograph.
[0068] In some examples, the target plate 1413 is located between the first window 1514 and the diffuser 1412 , so that the target plate 1413 is closest to the first window 1514 , allowing the first image acquisition component to capture a characteristic image or characteristic point of the target plate 1413 .
[0069] By adopting the technical solution of this embodiment, the light board 1411, the diffuser plate 1412 and the target plate 1413 are stacked in sequence, so that the light emitted by the light board 1411 is scattered by the diffuser plate 1412 and then emitted from the target plate 1413. In this way, the light emitted by the target plate 1413 has good uniformity, which is conducive to the first image acquisition component to obtain a clearer image of the first calibration component 141, thereby improving the accuracy of the four-wheel alignment detection.
[0070] In some embodiments, the surface of the target plate 1413 facing away from the light board 1411 has multiple calibration areas, and the distances between at least two calibration areas and the light board 1411 are different.
[0071] It can be understood that the surface of the target plate 1413 facing away from the light board 1411 is uneven, and the uneven surface is divided into multiple calibration areas, each calibration area has a characteristic image or characteristic point to facilitate the shooting of the first image acquisition component; the distance between at least one calibration area and the light board 1411 is different from the spacing between the light boards 1411 in another calibration area.
[0072] In some examples, the uneven surface is divided into three calibration areas, and the distances between the three calibration areas and the light board 1411 are different, so that the uneven surface forms a step structure. Of course, in other examples, the uneven surface can also have other structures.
[0073] By adopting the technical solution of this embodiment, the distances between at least two calibration areas and the light board 1411 are different, and a three-dimensional calibration surface can be formed. Based on the three-dimensional calibration surface, the position information between the two calibration devices 100 can be determined more accurately, which is conducive to improving the accuracy of four-wheel alignment detection.
[0074] In some embodiments, see Figure 4 As shown, there are multiple first calibration members 141, and along the width direction of the vehicle 2000, at least two first calibration members 141 are at different distances from the vehicle 2000; the projections of the two first calibration members 141 at different distances from the vehicle 2000 along the width direction of the vehicle 2000 at least partially do not overlap.
[0075] Along the width direction of vehicle 2000, at least two first calibration members 141 are at different distances from vehicle 2000. In some examples, first window 1514 is disposed toward vehicle 2000, and the distances between first calibration member 141 and vehicle 2000 are different. The distances between first window 1514 and first calibration member 141 are also different. By measuring the distance between first window 1514 and first calibration member 141, it can be determined that the distances between first calibration member 141 and vehicle 2000 are different. The number of first calibration members 141 at different distances from vehicle 2000 can be, but is not limited to, two, three, or four.
[0076] The projections of the two first calibration members 141 at different distances from the vehicle 2000 along the width direction of the vehicle 2000 at least partially do not overlap. It can be understood that, viewed along the width direction of the vehicle 2000, the first calibration members 141 at different distances from the vehicle 2000 do not overlap, so that the two first calibration members 141 can form a three-dimensional calibration structure. According to the three-dimensional calibration structure, the position information between the two calibration devices 100 can be determined more accurately, which is conducive to improving the accuracy of the four-wheel alignment detection; in addition, the design of multiple first calibration members 141 makes the position arrangement of multiple first calibration members 141 more flexible, and the distance between the first calibration members 141 can be set to be larger, so that the calibration structure is more three-dimensional, further improving the accuracy of the determined position information between the two calibration devices 100, and improving the accuracy of the four-wheel alignment detection.
[0077] In some embodiments, the number of first calibration members 141 is four, and the first first calibration member 141 and the third first calibration member 141 are spaced apart along the length direction of the vehicle 2000; the second first calibration member 141 is located on the lower side of the first calibration member 141 and on the side of the first first calibration member 141 close to the vehicle 2000, and the fourth first calibration member 141 is located on the upper side of the first first calibration member 141 and on the side of the first first calibration member 141 away from the vehicle 2000.
[0078] It can be understood that the number of the first calibration members 141 is four, and the first first calibration member 141 and the third first calibration member 141 are spaced apart along the length direction of the vehicle 2000, so that there is a spacing between the first first calibration member 141 and the third first calibration member 141 in the length direction of the vehicle 2000, and the second first calibration member 141 is located on the lower side of the first first calibration member 141, so that there is a height difference between the second second calibration member and the first first calibration member 141 in the height direction of the vehicle 2000, and the second first calibration member 141 is located on the side of the first first calibration member 141 close to the vehicle 2000, so that the second first calibration member 141 is spaced apart from the first first calibration piece 141 along the width direction of the vehicle 2000, and the fourth first calibration piece 141 is located on the upper side of the first first calibration piece 141, so that there is a height difference between the fourth second calibration piece and the first first calibration piece 141 along the height direction of the vehicle 2000, and the fourth first calibration piece 141 is located on the side of the first first calibration piece 141 away from the vehicle 2000, so that there is a space between the fourth first calibration piece 141 and the first first calibration piece 141 along the width direction of the vehicle 2000, and there is a space between the fourth first calibration piece 141 and the second first calibration piece 141 along the width direction of the vehicle 2000.
[0079] In some examples, when viewed along the height direction of the vehicle 2000 , the four first calibration components 141 are distributed up, down, left, and right; when viewed along the width direction of the vehicle 2000 , the four first calibration components 141 are distributed up, down, left, and right.
[0080] By adopting the technical solution of this embodiment, the four first calibration parts 141 can form a three-dimensional calibration structure. According to the three-dimensional calibration structure, the position information between the two calibration devices 100 can be determined more accurately, which is beneficial to improving the accuracy of four-wheel alignment detection; in addition, the four first calibration parts 141 are distributed in this way, the structure is simple, and the processing and manufacturing are convenient.
[0081] In some embodiments, the calibration device 100 further includes a second image acquisition component 142, which is used to photograph a second calibration component of the calibration device 100 located on the second side to obtain image information of the second calibration component. The second image acquisition component 142 is located in the middle position of the multiple first calibration components 141.
[0082] The second image acquisition member 142 is located at the center of the arrangement of multiple first calibration members 141; for example, the four first calibration members 141 are spaced apart along the circumference of the second image acquisition member 142, the second image acquisition member 142 is located between the first first calibration member 141 and the third first calibration member 141, and the second image acquisition member 142 is also located between the second first calibration member 141 and the fourth first calibration member 141.
[0083] By adopting the technical solution of this embodiment, the second image acquisition component 142 is located in the middle position of multiple first calibration components 141. In this way, when used in conjunction with the calibration device 100 located on the second side, the second calibration component can be located at or close to the center position of the shooting field of view of the second image acquisition component 142, so that the second image acquisition component 142 can capture clearer image information of the second calibration component, which is also beneficial for the first image acquisition component to capture clearer image information of the first calibration component 141. In this way, the position information between the two calibration devices 100 can be determined more accurately, which is beneficial to improving the accuracy of four-wheel alignment detection.
[0084] In some embodiments, the light emitted by the first calibration element 141 is invisible light.
[0085] Invisible light refers to light in the electromagnetic spectrum that cannot be perceived by the human eye. Invisible light can include but is not limited to ultraviolet rays and infrared rays.
[0086] By adopting the technical solution of this embodiment, the light emitted by the first calibration member 141 is invisible light, which can be distinguished from ambient light, thereby reducing the influence of ambient light on the light emitted by the first calibration member 141, and improving the clarity of the image information of the first calibration member 141 captured by the first image acquisition member. The first image acquisition member has a good shooting effect, which is conducive to improving the accuracy of four-wheel alignment detection.
[0087] In some embodiments, see Figure 2 and Figure 3 As shown, the calibration device 100 includes a housing 150, and the housing 150 includes a shell 151 and a light-transmitting member 152. The shell 151 is installed on the mounting base 110, and the first calibration member 141 is located in the shell 151. The shell 151 is provided with a first window 1514 on the side facing the vehicle 2000. The light-transmitting member 152 is installed on the first window 1514 and seals the first window 1514. The light-transmitting member 152 can allow at least part of the light emitted by the first calibration member 141 to pass through, and the light-transmitting member 152 can block at least part of the visible light.
[0088] The outer shell 150 may refer to a shell structure with a hollow interior. The outer shell 150 includes a shell body 151 and a light-transmitting member 152. The interior of the shell body 151 is hollow to form a receiving space. The first calibration member 141 is located in the receiving space. The shell body 151 is provided with a first window 1514 facing the side of the vehicle 2000. The first window 1514 is connected to the receiving space. The first window 1514 allows light emitted by the first calibration member 141 to pass through.
[0089] The light-transmitting member 152 refers to objects or materials that can transmit light. The material of the light-transmitting member 152 can be, but is not limited to, glass or transparent plastic.
[0090] The light-transmitting member 152 allows at least part of the light emitted by the first calibration member 141 to pass through. It can be understood that all the light emitted by the first calibration member 141 can pass through the light-transmitting member 152, or part of the light emitted by the first calibration member 141 passes through the light-transmitting member 152, and the other part of the light does not pass through the light-transmitting member 152, so that the first image acquisition member can capture the luminous first calibration member 141.
[0091] The light-transmitting member 152 can block at least part of the visible light. It can be understood that all visible light cannot pass through the light-transmitting member 152 to enter the shell 151, or, a part of the visible light can pass through the light-transmitting member 152 to enter the shell 151, while another part of the visible light cannot pass through the light-transmitting member 152 to enter the shell 151.
[0092] By adopting the technical solution of this embodiment, the light-transmitting member 152 can at least block part of the ambient visible light from entering the shell 151, thereby reducing the impact of the external ambient visible light on the first calibration member 141 and improving the clarity of the image information of the first calibration member 141 captured by the first image acquisition member. The first image acquisition member has a good shooting effect, which is conducive to improving the accuracy of the four-wheel alignment detection.
[0093] In some embodiments, see Figures 7-9 As shown, the calibration device 100 also includes an image acquisition module 120, and the image acquisition module 120 includes an image acquisition unit 121. The image acquisition unit 121 can photograph the third calibration piece 200 installed on the wheel located on the first side to obtain image information of the third calibration piece 200, so as to facilitate subsequent analysis based on the image information of the first calibration piece 141 and the image information of the third calibration piece 200 to obtain the four-wheel alignment information of the vehicle 2000.
[0094] In some embodiments, the image acquisition module 120 includes two image acquisition units 121, which respectively photograph the third calibration parts 200 on the two wheels to be tested 2100 located on the first side to obtain image information of the two third calibration parts 200 to improve detection efficiency; in addition, the setting of the two image acquisition units 121 allows the calibration device 100 to be located in the middle position of the two wheels on the same side of the vehicle 2000. Compared with the method in which the calibration device 100 is located at the front or rear side of the vehicle 2000, the site area required for the four-wheel aligner 1000 to detect can be reduced, and the detection of the four-wheel aligner 1000 is more convenient and quick.
[0095] In some embodiments, the image acquisition unit 121 includes a camera 1211 and a fill light 1212. The fill light 1212 is used to provide fill light to the camera 1211. The fill light 1212 can provide light to the camera 1211, so that the image information of the third calibration part 200 captured by the camera 1211 is clearer, which is conducive to improving the detection accuracy of the calibration device 100.
[0096] In some embodiments, the fill light 1212 includes a substrate 12121 and a plurality of light-emitting components 12122 installed on the substrate 12121. The substrate 12121 is provided with a through hole 1212a. The lens 12111 of the camera 1211 is passed through the through hole 1212a. The plurality of light-emitting components 12122 are distributed circumferentially along the lens 12111 of the camera 1211, so that light is emitted from all sides of the lens 12111 of the camera 1211. The fill light effect is good, which is beneficial to improving the clarity of the image information of the third calibration component 200 captured by the camera 1211 and improving the detection accuracy of the calibration device 100.
[0097] In some embodiments, the image acquisition unit 121 also includes a first bracket 1213 and a second bracket 1214 installed on the mounting base 110 and spaced apart. The camera 1211 is installed on the first bracket 1213, and the fill light 1212 is installed on the second bracket 1214. The first bracket 1213 and the second bracket 1214 do not contact each other. The camera 1211 and the fill light 1212 are relatively independently fixed, reducing the impact of factors such as the shaking of the fill light 1212 on the camera 1211, which is beneficial to improving the clarity of the image information of the third calibration part 200 captured by the camera 1211 and improving the detection accuracy of the calibration device 100.
[0098] In some embodiments, see Figure 4 As shown, the position detection module 140 also includes a third bracket 143 and a fourth bracket 144 fixed to the mounting base 110, the first calibration component 141 is installed on the third bracket 143, and the second image acquisition component 142 is installed on the fourth bracket 144, thereby achieving the fixation of the first calibration component 141 and the second image acquisition component 142.
[0099] In some examples, the third bracket 143 is located between the light board 1411 and the diffuser plate 1412, and the light board 1411, the diffuser plate 1412 and the target plate 1413 are fixed together on the third bracket 143. There is no need to fix the light board 1411, the diffuser plate 1412 and the target plate 1413 separately, and the fixation of the second calibration part is simpler; wherein, the light board 1411, the diffuser plate 1412 and the target plate 1413 can be fixed to the third bracket 143 by fasteners (for example, screws, etc.).
[0100] In some embodiments, the mounting base 110 has a magnetic surface 111 a , and the magnetic surface 111 a can be magnetically fixed to the supporting mechanism 3000 for supporting the vehicle 2000 .
[0101] The magnetic surface 111 a may refer to a surface of the mounting base 110 used for magnetic fixation with the supporting mechanism 3000 .
[0102] In some examples, the mounting base 110 has a magnetic member 1111 exposed on the mounting base 110 . The magnetic member 1111 is directly attracted to the supporting mechanism 3000 , and the surface where the magnetic member 1111 contacts the supporting mechanism 3000 is the magnetic surface 111 a .
[0103] In some examples, the mounting base 110 has a magnetic member 1111, which is installed inside the mounting base 110. The magnetic member 1111 can be magnetically adsorbed to the supporting mechanism 3000 through the mounting base 110, and the surface where the mounting base 110 contacts the supporting mechanism 3000 is the magnetic surface 111a.
[0104] In some examples, the magnetic attraction member 1111 can be but is not limited to a magnet or an iron member; when the magnetic attraction member 1111 is a magnet, the supporting mechanism 3000 can be provided with a magnet or an iron member that is magnetically attracted to the magnet; when the magnetic attraction member 1111 is an iron member, the supporting mechanism 3000 is provided with a magnet that is magnetically attracted to the iron member.
[0105] In some examples, the number of magnetic parts can be one or more, for example: two, three, four, etc.; for example, the number of magnetic parts 1111 is three, and the three magnetic parts 1111 are arranged at intervals along the length direction of the vehicle 2000. The three magnetic parts 1111 are magnetically attracted to the surface of the supporting mechanism 3000 to form a magnetic surface 111a together, so that multi-point magnetic attraction can be formed between the mounting base 110 and the supporting mechanism 3000, which can improve the connection reliability between the mounting base 110 and the supporting mechanism 3000.
[0106] By adopting the technical solution of this embodiment, the mounting base 110 can be magnetically fixed on the supporting mechanism 3000 through the magnetic surface 111a. The mounting base 110 has good fixing stability, the image acquisition unit 121 has good shooting stability, and the clarity of the image information of the third calibration part 200 is better, which is conducive to improving the detection accuracy of the vehicle 2000. In addition, the magnetic connection method is adopted to facilitate the installation and position adjustment of the calibration device 100.
[0107] In some embodiments, the position detection module 140 and the image acquisition module 120 are both installed on the mounting base 110, and the position detection module 140 is located on the side of the image acquisition module 120 facing the vehicle 2000. Such distribution can facilitate the image acquisition unit 121 and the first image acquisition component to capture image information.
[0108] In some embodiments, see Figure 7 As shown, the mounting base 110 includes a base 111 and a support assembly 112. The base 111 is in the shape of an elongated strip. One end surface of the base 111 forms a magnetic surface 111a. The support assembly 112 is mounted on the other end of the base 111. The image acquisition unit 121 and the position detection module 140 are mounted on the support assembly 112. During detection, the magnetic surface 111a of the base 111 is adsorbed on the side of the supporting mechanism 3000 and is perpendicular to the side surface, while the image acquisition unit 121 is mounted on the support assembly at the other end of the base 111. 112, so that there is a certain distance between the lens 12111 of the image acquisition unit 121 and the vehicle 2000 in the width direction of the vehicle 2000, so as to facilitate the image acquisition unit 121 to capture the image information of the third calibration part 200; at the same time, the support component 112 can also lift the image acquisition unit 121 and the position detection module 140 to facilitate the image acquisition unit 121 and the position detection module 140 to capture. This mounting base 110 has a simple structure and light weight, which can facilitate the use of the calibration device 100.
[0109] In some embodiments, the support assembly 112 further includes a support frame 1121 and a mounting plate 1122. The support frame 1121 is mounted on the base 111, and the mounting plate 1122 is mounted on the support frame 1121. The surface of the mounting plate 1122 facing away from the support frame 1121 forms a mounting surface 11221. The image acquisition unit 121 and the position detection module 140 are mounted on the mounting surface 11221. The position detection module 140 and the image acquisition module 120 are mounted on the same surface, which improves the accuracy of the relative fixed position between the position detection module 140 and the image acquisition module 120, and is conducive to improving the detection accuracy of the calibration device 100. For example, the third bracket 143, the fourth bracket 144, the first bracket 1213 and the second bracket 1214 can be fixed to the mounting surface 11221 by fasteners (e.g., screws), clamping, bonding, etc.
[0110] In some embodiments, the housing 151 is provided with a second window 1515 , and the second window 1515 allows the lens 12111 of the image acquisition unit 121 to be exposed, thereby facilitating the image acquisition unit 121 to photograph the third calibration piece 200 .
[0111] In some embodiments, see Figure 2 and Figure 3 As shown, the housing 151 is formed with a handle 1516 for a person to hold, thereby facilitating the use of the calibration device 100 .
[0112] In some embodiments, the housing 151 may include multiple parts, which may be formed separately and then assembled together, or may be formed as one piece.
[0113] In some examples, the shell 151 includes a first shell 1511 and a second shell 1512. The first shell 1511 and the second shell 1512 are spliced and enclosed to form a receiving space, and the position detection module 140 and the image acquisition module 120 are installed in the receiving space; the third shell 1513 is mounted on the ends of the first shell 1511 and the second shell 1512 near the first window 1514 to fix and protect the first shell 1511 and the second shell 1512. This design can facilitate the production and processing of the calibration device 100.
[0114] In some embodiments, a battery is provided in the base 111 , and the battery is used to power the camera 1211 and the first control device 130 .
[0115] In some embodiments, see Figure 7As shown, an indicator unit 1112 is provided at the end of the base 111 facing away from the magnetic surface 111a. The indicator unit 1112 is used to display the working status of the calibration device 100 to facilitate the use of the calibration device 100. The indicator unit 1112 can be but is not limited to an indicator light or a display panel.
[0116] In some embodiments, see Figure 1 As shown, the four-wheel aligner 1000 includes the calibration device 100 according to the above embodiment.
[0117] The four-wheel aligner 1000 of the embodiment of the present application adopts the above-mentioned calibration device 100, which is conducive to improving the accuracy of determining the position information between the two calibration devices 100 and improving the detection accuracy of the four-wheel aligner 1000.
[0118] The above description of the various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other and will not be repeated herein for the sake of brevity.
[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A calibration device, characterized in that: include: a mounting base for mounting on a first side of a vehicle; a position detection module mounted on the mounting base, the position detection module comprising a first calibration member, the first calibration member being configured to be photographed by a first image acquisition member of a calibration device located on a second side of the vehicle to obtain image information of the first calibration member, the first side and the second side being opposite sides of the vehicle along a width direction; Wherein, the first calibration component is a self-luminous calibration component.
2. The calibration device according to claim 1, characterized in that: The calibration device includes a first control device, and the position detection module includes a second image acquisition component, which is used to photograph a second calibration component of the calibration device located on the second side of the vehicle to obtain image information of the second calibration component. The first control device is connected to the second image acquisition component to receive the image information of the second calibration component and process the image information of the second calibration component.
3. The calibration device according to claim 1, characterized in that: The first calibration component includes a light board, a light diffusion plate and a target plate, and the light board, the light diffusion plate and the target plate are stacked in sequence.
4. The calibration device according to claim 3, characterized in that: The surface of the target plate facing away from the light board has a plurality of calibration areas, and the distances between at least two of the calibration areas and the light board are different.
5. The calibration device according to any one of claims 1 to 3, characterized in that: There are multiple first calibration members, and along the width direction of the vehicle, at least two of the first calibration members are at different distances from the vehicle; the projections of the two first calibration members at different distances from the vehicle along the width direction of the vehicle at least partially do not overlap.
6. The calibration device according to claim 5, characterized in that: There are four first calibration members, the first and third first calibration members are spaced apart along the length direction of the vehicle; the second first calibration member is located below the first calibration member and on the side of the first first calibration member close to the vehicle; the fourth first calibration member is located above the first first calibration member and on the side of the first first calibration member away from the vehicle.
7. The calibration device according to claim 5, characterized in that: The calibration device further includes a second image acquisition component, which is used to photograph a second calibration component of the calibration device located on the second side to obtain image information of the second calibration component. The second image acquisition component is located in the middle of the plurality of first calibration components.
8. The calibration device according to any one of claims 1 to 3, characterized in that: The light emitted by the first calibration component is invisible light.
9. The calibration device according to claim 8, characterized in that: The calibration device includes an outer shell, which includes a shell and a light-transmitting member. The shell is installed on the mounting seat, and the first calibration member is located in the shell. The shell is provided with a first window facing the side of the vehicle, and the light-transmitting member is installed in and seals the first window. The light-transmitting member can allow at least part of the light emitted by the first calibration member to pass through, and the light-transmitting member can block at least part of the visible light.
10. A four-wheel aligner, characterized in that: The device comprises the calibration device according to any one of claims 1 to 9.