Four-wheel aligner

Abstract

The utility model belongs to the technical field of vehicle detection, and particularly relates to a four-wheel aligner which comprises a first detection device, a second detection device and a control device. The first detection device comprises a first position detection module and a first image acquisition module, the second detection device comprises a second position detection module and a second image acquisition module, and the first image acquisition module and the second image acquisition module are respectively used for acquiring image information on four wheels; one of the first position detection module and the second position detection module comprises a fifth calibration part, the other comprises an image acquisition part, and the image acquisition part is used for shooting image information of the fifth calibration part; the control device analyzes the positioning information of the four wheels of the vehicle according to the obtained image information, and the mode that the positioning information is obtained by analyzing the image information reduces the detection time of the four-wheel aligner, improves the detection efficiency of the four-wheel aligner and improves the use convenience of the four-wheel aligner.

Description

Technical Field

[0001] The present application belongs to the field of vehicle detection technology, and in particular relates to 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; however, some four-wheel aligners have a long detection time and low detection efficiency.

[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 this application is to provide a four-wheel aligner, aiming to solve the technical problems of long detection time and low detection efficiency of four-wheel aligners in related technologies.

[0006] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: a four-wheel aligner, comprising a first detection device, a second detection device and a control device; the first detection device is used to be arranged on the left side of the vehicle, the first detection device comprises a first position detection module and a first image acquisition module, the first image acquisition module is used to obtain first image information of a first calibration piece installed on the left front wheel of the vehicle and second image information of a second calibration piece installed on the left rear wheel of the vehicle; the second detection device is used to be arranged on the right side of the vehicle, the second detection device comprises a second position detection module and a second image acquisition module, the second image acquisition module is used to obtain a third calibration piece installed on the right front wheel of the vehicle The invention relates to a four-wheel alignment device, comprising: a first position detection module and a second position detection module, wherein one of the first position detection module and the second position detection module includes a fifth calibration member and the other includes an image acquisition member, and the image acquisition member is used to shoot fifth image information of the fifth calibration member; the control device is connected to the first image acquisition module, the second image acquisition module and the image acquisition member to receive the first image information, the second image information, the third image information, the fourth image information and the fifth image information, and parses the four-wheel alignment information of the vehicle according to the first image information, the second image information, the third image information, the fourth image information and the fifth image information.

[0007] Optionally, the first position detection module and the second position detection module include an image acquisition component and a fifth calibration component; the image acquisition component of the first position detection module is used to capture the sixth image information of the fifth calibration component of the second position detection module; the image acquisition component of the second position detection module is used to capture the seventh image information of the fifth calibration component of the first position detection module; the fifth image information includes at least one of the sixth image information and the seventh image information; the image acquisition component of the first position detection module and the image acquisition component of the second position detection module are both connected to the control device so that the control device can receive the sixth image information and the seventh image information, and parse the position information between the first detection device and the second detection device based on the sixth image information and the seventh image information.

[0008] Optionally, the fifth calibration element is a self-luminous calibration element.

[0009] Optionally, the fifth calibration component includes a light board, a light scattering plate and a target board, the light board, the light scattering plate and the target board are stacked, and the light scattering plate is located between the light board and the target board.

[0010] 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.

[0011] Optionally, in the first position detection module or the second position detection module, there are multiple fifth calibration pieces, and along the width direction of the vehicle, at least two fifth calibration pieces are at different distances from the vehicle; the projections of the two fifth calibration pieces at different distances from the vehicle along the width direction of the vehicle at least partially do not overlap.

[0012] Optionally, the number of fifth marking members is four, the first fifth marking member and the third fifth marking member are spaced apart along the length direction of the vehicle; the second fifth marking member is located on the lower side of the fifth marking member and on the side of the first fifth marking member close to the vehicle, and the fourth fifth marking member is located on the upper side of the first fifth marking member and on the side of the first fifth marking member away from the vehicle.

[0013] Optionally, the image acquisition component is located in the middle of the plurality of fifth calibration components.

[0014] Optionally, the first detection device further includes a mounting base, the first image acquisition module includes two image acquisition units installed on the mounting base, one of which is disposed on the side of the mounting base facing the first calibration member to obtain the first image information; the other image acquisition unit is disposed on the side of the mounting base facing the second calibration member to obtain the second image information.

[0015] Optionally, the lens of the image acquisition unit is arranged toward the vehicle and tilted upward.

[0016] Optionally, the angle between the optical axis of the lens of the image acquisition unit and the horizontal plane is in the range of 12.5° to 18.5°; and / or the angle between the optical axis of the lens of the image acquisition unit and the auxiliary plane is in the range of 14° to 20°, and the auxiliary plane is perpendicular to the width direction of the vehicle.

[0017] Optionally, the image acquisition unit includes a camera and a fill light, and the fill light ring is arranged outside the camera lens.

[0018] Optionally, the image acquisition unit further includes a first bracket and a second bracket installed on the mounting base and spaced apart, the camera is installed on the first bracket, and the fill light board is installed on the second bracket.

[0019] Optionally, the mounting base has a mounting surface, and the first position detection module and the two image acquisition units are mounted on the mounting surface.

[0020] Optionally, the mounting seat includes a base, a support frame and a mounting plate, the support frame is connected between the base and the mounting plate so that the base and the mounting plate are spaced apart, and the surface of the mounting plate facing away from the support frame forms a mounting surface.

[0021] Optionally, the mounting seat has a magnetic surface, which can be magnetically fixed to a supporting mechanism for supporting the vehicle.

[0022] Optionally, the height difference between the lens of the image acquisition unit and the magnetic surface ranges from 100 mm to 160 mm; and / or, along the width direction of the vehicle, the distance between the lens of the image acquisition unit and the magnetic surface ranges from 160 mm to 220 mm.

[0023] Optionally, the control device further includes a first control member and a second control member, the first control member is disposed in the first detection device, and the second control member is disposed in the second detection device;

[0024] The first control member is connected to the first detection device to receive the first image information, the second image information and the sixth image information;

[0025] The second control member is connected to the second detection device to receive the third image information, the fourth image information and the seventh image information;

[0026] The first control element and the second control element are connected by wire or wirelessly;

[0027] The first control component transmits the first image information, the second image information, and the sixth image information to the second control component, the second control component receives the first image information, the second image information, and the sixth image information, and parses the four-wheel alignment information of the vehicle based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information, and the seventh image information, and displays the four-wheel alignment information of the vehicle;

[0028] Alternatively, the second control component transmits the third image information, the fourth image information and the seventh image information to the first control component, the first control component receives the first image information, the second image information and the sixth image information, and parses the four-wheel alignment information of the vehicle based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information and displays the four-wheel alignment information of the vehicle.

[0029] Optionally, the control device further includes a third control member, a fourth control member and a fifth control member, the third control member is provided in the first detection device, the fourth control member is provided in the second detection device; the fifth control member is an independent component;

[0030] The third control member is connected to the first detection device to receive the first image information, the second image information and the sixth image information;

[0031] The fourth control member is connected to the second detection device to receive the third image information, the fourth image information and the seventh image information;

[0032] The third control component can transmit the first image information, the second image information and the sixth image information directly to the fifth control component or transmit them to the fifth control component through the fourth control component in a wireless or wired manner; the fourth control component can transmit the third image information, the fourth image information and the seventh image information directly to the fifth control component or transmit them to the fifth control component through the third control component in a wireless or wired manner; the fifth control component can parse the four-wheel alignment information of the vehicle based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information and display the four-wheel alignment information of the vehicle;

[0033] Alternatively, the third control component can transmit the first image information, the second image information, and the sixth image information directly to the fourth control component in a wireless or wired manner, or transmit them to the fourth control component through the fifth control component; the fourth control component can parse the four-wheel alignment information of the vehicle based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information, and the seventh image information, and transmit the four-wheel alignment information of the vehicle to the fifth control component for display;

[0034] Alternatively, the fourth control component can transmit the third image information, the fourth image information and the seventh image information directly to the third control component or transmit them to the third control component through the fifth control component in a wireless or wired manner; the third control component can parse the vehicle's four-wheel alignment information based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, and transmit the vehicle's four-wheel alignment information to the fifth control component for display.

[0035] The above one or more technical solutions in the four-wheel aligner provided in the present application have at least one of the following technical effects: during the detection process, the control device can analyze the position information between the first detection device and the second detection device and the position information of the four wheels based on the first image information, the second image information, the third image information, the fourth image information and the fifth image information, and use these position information to calculate and analyze to obtain the four-wheel alignment information of the vehicle; wherein, the position information between the first detection device and the second detection device and the position information of the four wheels can obtain the position information of the first detection device and the second detection device relative to the vehicle. This method of obtaining position information by analyzing image information can reduce the requirements for the accuracy of the installation position of the first detection device and the second detection device, save the installation time of the first detection device and the second detection device, reduce the detection time of the four-wheel aligner, improve the detection efficiency of the four-wheel aligner, and improve the convenience of using the four-wheel aligner.

[0036] 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

[0037] 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.

[0038] 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.

[0039] Figure 2 for Figure 1 Schematic diagram of the structure of the first detection device / second detection device shown in .

[0040] Figure 3 for Figure 2 Schematic diagram of the exploded view of the first detection device / second detection device shown in .

[0041] Figure 4 for Figure 2 The structure diagram of the first detection device / second detection device after the housing is hidden Figure 1 .

[0042] Figure 5 for Figure 4 Schematic diagram of the structure of the fifth calibration member and the third bracket shown in .

[0043] Figure 6 for Figure 5 Schematic diagram of the decomposition of the fifth calibration member and the third bracket shown.

[0044] Figure 7 for Figure 2 The structure diagram of the first detection device / second detection device after the housing is hidden Figure 2 .

[0045] Figure 8 for Figure 7 Schematic diagram of the structure of the image acquisition unit shown in .

[0046] Figure 9 for Figure 8 The exploded schematic diagram of the image acquisition unit is shown.

[0047] Figure 10 for Figure 2 The structure diagram of the first detection device / second detection device after the housing is hidden Figure 3 .

[0048] Among them, the reference numerals in the figures are:

[0049] 1000, wheel aligner; 101, first detection device; 102, second detection device; 110, mounting base; 111, base; 111a, magnetic surface; 1111, magnetic member; 1112, indicator unit; 112, support frame; 113, mounting plate; 1131, mounting surface; 1201, first image acquisition module; 1202, second 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, control device; 131, first control member; 132, second control member; 133, third control member; 134, fourth control member Parts; 135, fifth control component; 1401, first position detection module; 1402, second position detection module; 141, fifth calibration component; 1411, light board; 1412, diffuser plate; 1413, target plate; 142, 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; 201, first calibration component; 202, second calibration component; 203, third calibration component; 204, fourth calibration component; 300, wheel hub clamping device; 2000, vehicle; 2100, wheel; 3000, supporting mechanism. DETAILED DESCRIPTION

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] After long-term operation, the four tires of a vehicle wear differently, causing the four wheels to become unevenly aligned. If not corrected promptly, the vehicle's trajectory can easily deviate. This deviation can easily lead to traffic accidents, especially on dangerous roads.

[0060] In order to solve this problem, a four-wheel aligner is usually used to detect the four-wheel alignment information of the vehicle to determine whether there is any deviation in the wheels. During the detection process of some four-wheel aligners, calibration parts are installed on the four wheels of the vehicle, and an image acquisition device is installed on the front side of the vehicle. The image acquisition device captures the calibration parts on the four wheels and obtains image information of the calibration parts, and then obtains the four-wheel alignment information of the four vehicles based on the image information analysis. However, this test method requires the position of the image acquisition device and the position of the vehicle to be adjusted to preset positions in order to accurately analyze and obtain the four-wheel alignment information of the vehicle based on the image information analysis. Therefore, in the actual detection process, it is usually necessary to adjust the position of the image acquisition device or the position of the vehicle multiple times, which increases the detection time and reduces the detection efficiency.

[0061] Based on this, an embodiment of the present application provides a four-wheel aligner, which places a first detection device and a second detection device on the left and right sides of a vehicle, and uses the first image acquisition module of the first detection device and the second image acquisition module of the second detection device to respectively shoot the calibration parts respectively installed on the four wheels to obtain image information of the calibration parts, and uses the image acquisition part of one of the first detection device and the second detection device to shoot the fifth calibration part of the other device to obtain image information of the fifth calibration part. The control device can parse the four-wheel alignment information of the vehicle based on the obtained image information, thereby completing the detection; the four-wheel aligner of the embodiment of the present application uses the image acquisition part to shoot the image information of the fifth calibration part and the image information on the wheel, and can analyze and calculate the position information of the first detection device and the second detection device relative to the vehicle. This can reduce the requirements for the accuracy of the installation position of the first detection device and the second detection device, save detection time, and improve the detection efficiency of the four-wheel aligner.

[0062] The four-wheel aligner of the embodiment of the present application can be used to detect the four-wheel alignment information of a vehicle, such as the castor angle, the kingpin inclination angle, the front wheel camber angle, etc.

[0063] For the convenience of explanation below, the length direction of the vehicle can be found in the attached Figure 1 The X-axis in the figure and the width direction of the vehicle can be found in the attached Figure 1 The Y axis in the figure and the height direction of the vehicle can be found in the attached Figure 2 The Z axis in .

[0064] like Figures 1 to 4As shown, in one embodiment of the present application, a four-wheel aligner 1000 is provided, including a first detection device 101, a second detection device 102 and a control device 130, the first detection device 101 is used to be arranged on the left side of the vehicle 2000, the first detection device 101 includes a first position detection module 1401 and a first image acquisition module 1201, the first image acquisition module 1201 is used to obtain first image information of a first calibration piece 201 installed on the left front wheel of the vehicle 2000 and second image information of a second calibration piece 202 installed on the left rear wheel of the vehicle 2000; the second detection device 102 is used to be arranged on the right side of the vehicle 2000, the second detection device 102 includes a second position detection module 1402 and a second image acquisition module 1202, the second image acquisition module 1201 is used to obtain first image information of a first calibration piece 201 installed on the left front wheel of the vehicle 2000 and second image information of a second calibration piece 202 installed on the left rear wheel of the vehicle 2000 The third image information of the third calibration piece 203 of the right front wheel of the vehicle 2000 and the fourth image information of the fourth calibration piece 204 installed on the right rear wheel of the vehicle 2000; in the first position detection module 1401 and the second position detection module 1402, one of them includes the fifth calibration piece 141, and the other includes the image acquisition piece 142, and the image acquisition piece 142 is used to shoot the fifth image information of the fifth calibration piece 141; the control device 130 is connected to the first image acquisition module 1201, the second image acquisition module 1202 and the image acquisition piece 142 to receive the first image information, the second image information, the third image information, the fourth image information and the fifth image information, and parse the four-wheel alignment information of the vehicle 2000 according to the first image information, the second image information, the third image information, the fourth image information and the fifth image information.

[0065] Taking the forward direction of the vehicle 2000 as a reference, the front, rear, left and right sides of the vehicle 2000 are obtained. The left and right sides of the vehicle 2000 may refer to the two sides of the vehicle 2000 that are relatively distributed along the width direction. The wheel 2100 located on the left front side of the vehicle 2000 is the left front wheel, the wheel 2100 located on the left rear side of the vehicle 2000 is the left rear wheel, the wheel 2100 located on the right front side of the vehicle 2000 is the right front wheel, and the wheel 2100 located on the right rear side of the vehicle 2000 is the right rear wheel; calibration parts are installed on the four wheels 2100 of the vehicle 2000, among which the calibration part installed on the left front wheel is the first calibration part 201, the calibration part installed on the left rear wheel is the second calibration part 202, the calibration part installed on the right front wheel is the third calibration part 203, and the calibration part installed on the right rear wheel is the fourth calibration part 204.

[0066] The calibration component may refer to a component capable of being captured by the image acquisition module to obtain image information. The calibration component may include specific patterns or feature points, such as a checkerboard or dot pattern, that can be captured by the image acquisition module and used for calculations. For example, during the inspection process, the image acquisition module captures image information of the calibration component, then analyzes the feature points in the image information and uses these points to calculate the four-wheel alignment information of vehicle 2000. The structures of the first calibration component 201, the second calibration component 202, the third calibration component 203, and the fourth calibration component 204 may be the same or different.

[0067] In some examples, the calibration piece can be mounted on the hub of the wheel 2100 via the hub clamping device 300. The stable and reliable fixation of the calibration piece is conducive to improving the detection accuracy of the four-wheel aligner 1000. Of course, in other examples, the calibration piece can also be fixed to the wheel 2100 by screwing, clamping, bonding, etc.

[0068] The first detection device 101 may refer to a detection device installed on the left side of the vehicle 2000. The first detection device 101 includes a first image acquisition module 1201 and a first position detection module 1401. The first image acquisition module 1201 can capture image information of the first calibration part 201 and the second calibration part 202, wherein the image information including the first calibration part 201 is the first image information, and the image information including the second calibration part 202 is the second image information.

[0069] In some examples, the first detection device 101 and the second detection device 102 are placed on the front or rear side of the vehicle 2000, so that the first image acquisition module 1201 simultaneously photographs the first calibration part 201 and the second calibration part 202 and obtains an image information, which includes the first calibration part 201 and the second calibration part 202, that is, the first image information and the second image information are the same image information.

[0070] In some examples, the first detection device 101 and the second detection device 102 are placed between the front and rear wheels of the vehicle 2000, so that the first image acquisition module 1201 separately photographs the first calibration part 201 and the second calibration part 202 and obtains two image information, one of which includes the first calibration part 201 and the other includes the second calibration part 202, that is, the first image information and the second image information are two separate image information.

[0071] In some examples, the first image acquisition module 1201 can be, but is not limited to, a camera 1211 or a webcam.

[0072] The second detection device 102 may be a detection device installed on the right side of the vehicle 2000. The second detection device 102 includes a second image acquisition module 1202 and a second position detection module 1402. The second image acquisition module 1202 can capture image information of the third calibration member 203 and the fourth calibration member 204. The image information including the third calibration member 203 is the third image information, and the image information including the fourth calibration member 204 is the fourth image information. The second image acquisition module 1202 may be, but is not limited to, a camera 1211 or a webcam.

[0073] In some examples, the first detection device 101 and the second detection device 102 are placed on the front or rear side of the vehicle 2000, so that the second image acquisition module 1202 simultaneously photographs the third calibration piece 203 and the fourth calibration piece 204 and obtains an image information, which includes the third calibration piece 203 and the fourth calibration piece 204, that is, the third image information and the fourth image information are the same image information.

[0074] In some examples, the first detection device 101 and the second detection device 102 are placed in the middle position on the side of the vehicle 2000, so that the second image acquisition module 1202 separately shoots the third calibration part 203 and the fourth calibration part 204 and obtains two image information, one of which includes the third calibration part 203 and the other includes the fourth calibration part 204, that is, the third image information and the fourth image information are two separate image information.

[0075] In some examples, the first position detection module 1401 includes an image acquisition component 142 and the second position detection module 1402 includes a fifth calibration component 141 , or the first position detection module 1401 includes a fifth calibration component 141 and the second position detection module 1402 includes an image acquisition component 142 .

[0076] The fifth calibration member 141 and the image acquisition member 142 are respectively located on the left and right sides of the vehicle 2000. The image acquisition member 142 is arranged opposite to the fifth calibration member 141. The image acquisition member 142 shoots the fifth calibration member 141 to obtain image information of the fifth calibration member 141, that is, the fifth image information.

[0077] The image acquisition component 142 may refer to a component capable of capturing images, such as a camera 1211 or a webcam.

[0078] The fifth calibration element 141 may be a component capable of being captured by the image acquisition element 142 to obtain image information. The fifth calibration element 141 includes a specific pattern or feature points, such as a checkerboard or dot pattern, that can be captured by the image acquisition element 142 and used for calculations. For example, during the detection process, the image acquisition element 142 captures image information of the fifth calibration element 141, then analyzes the feature points in the image information and uses these points to calculate the position information between the first detection device 101 and the second detection device 102. The structure of the fifth calibration element 141 may be the same as or different from that of the first calibration element 201.

[0079] The control device 130 may refer to a component capable of transmitting data with the first image acquisition module 1201, the second image acquisition module 1202, and the image acquisition component 142; the control device 130 may be connected to the first image acquisition module 1201, the second image acquisition module 1202, and the image acquisition component 142 via a wiring harness or wirelessly; the control device 130 may receive first image information, second image information, third image information, fourth image information, and fifth image information fed back by the first image acquisition module 1201, the second image acquisition module 1202, and the image acquisition component 142, and obtain position information between the first detection device 101 and the second detection device 102 based on the fifth image information. The control device 130 then combines the position information between the first detection device 101 and the second detection device 102 and the first image information, the second image information, the third image information, and the fourth image information to analyze and obtain position information of the four wheels of the vehicle 2000 relative to the first detection device 101 and the second detection device 102, and uses this position information and the obtained image information to calculate and analyze the four-wheel alignment information of the vehicle 2000. The control device 130 may be, but is not limited to, a circuit board, a tablet, a mobile phone, or other components.

[0080] By adopting the technical solution of this embodiment, during detection, the left front wheel, left rear wheel, right front wheel and right rear wheel of the vehicle 2000 are respectively installed with the first calibration piece 201, the second calibration piece 202, the third calibration piece 203 and the fourth calibration piece 204, the first detection device 101 and the second detection device 102 are respectively installed on the left and right sides of the vehicle 2000, the first image acquisition module 1201 of the first detection device 101 shoots the first calibration piece 201 and the second calibration piece 202 to obtain the first image information and the second image information, the second image acquisition module 1202 of the second detection device 102 shoots the third calibration piece 203 and the fourth calibration piece 204 to obtain the third image information and the fourth image information. Information, and, in the first position detection module 1401 and the second position detection module 1402, one of them includes the fifth calibration part 141, and the other includes the image acquisition part 142, the image acquisition part 142 shoots the fifth calibration part 141 to obtain the fifth image information, the first image acquisition module 1201, the second image acquisition module 1202 and the image acquisition part 142 feed back the first image information, the second image information, the third image information, the fourth image information and the fifth image information to the control device 130; the control device 130 analyzes the first image information, the second image information, the third image information, the fourth image information and the fifth image information to obtain the four-wheel alignment information of the vehicle 2000.

[0081] During the detection process, the control device 130 can analyze the position information between the first detection device 101 and the second detection device 102 and the position information of the four wheels 2100 based on the first image information, the second image information, the third image information, the fourth image information and the fifth image information, and use these position information to calculate and analyze to obtain the four-wheel alignment information of the vehicle 2000; wherein, the position information between the first detection device 101 and the second detection device 102 and the position information of the four wheels 2100 can be used to obtain the position information of the first detection device 101 and the second detection device 102 relative to the vehicle 2000. This method of obtaining position information by analyzing image information can reduce the requirements for the installation position accuracy of the first detection device 101 and the second detection device 101, save the installation time of the first detection device 101 and the second detection device 102, reduce the detection time of the four-wheel aligner 1000, improve the detection efficiency of the four-wheel aligner 1000, and improve the convenience of use of the four-wheel aligner 1000.

[0082] In some embodiments, the four-wheel aligner 1000 is used in conjunction with a carrying mechanism 3000 (e.g., a lift, etc.). The vehicle 2000 rests on the carrying mechanism 3000, and the carrying mechanism 3000 lifts the vehicle 2000 to facilitate detection by the four-wheel aligner 1000. The first detection device 101 and the second detection device 102 are fixed to the carrying mechanism 3000. The first detection device 101 and the second detection device 102 are fixed and not easy to shake, which is conducive to improving the detection accuracy of the four-wheel aligner 1000.

[0083] In some embodiments, the first position detection module 1401 and the second position detection module 1402 include an image acquisition component 142 and a fifth calibration component 141; the image acquisition component 142 of the first position detection module 1401 is used to capture the sixth image information of the fifth calibration component 141 of the second position detection module 1402; the image acquisition component 142 of the second position detection module 1402 is used to capture the seventh image information of the fifth calibration component 141 of the first position detection module 1401; the image acquisition component 142 of the first position detection module 1401 and the image acquisition component 142 of the second position detection module 1402 are both connected to the control device 130, so that the control device 130 can receive the sixth image information and the seventh image information, and parse the position information between the first detection device 101 and the second detection device 102 based on the sixth image information and the seventh image information.

[0084] The first position detection module 1401 and the second position detection module 1402 both include a fifth calibration element 141 and an image acquisition element 142.

[0085] During detection, the image acquisition component 142 of the first position detection module 1401 shoots the fifth calibration component 141 of the second position detection module 1402 to obtain image information of the fifth calibration component 141 of the second position detection module 1402, which is the sixth image information; and the image acquisition component 142 of the second position detection module 1402 shoots the fifth calibration component 141 of the first position detection module 1401 to obtain image information of the fifth calibration component 141 of the first position detection module 1401, which is the seventh image information, wherein the sixth graphic information can be called the fifth graphic information, or the seventh image information can be called the fifth image information, or both the sixth image information and the seventh image information are called the fifth image information.

[0086] Data can be transmitted between the image acquisition component 142 of the first position detection module 1401 and the image acquisition component 142 of the second position detection module 1402 and the control device 130. The image acquisition component 142 of the first position detection module 1401 and the image acquisition component 142 of the second position detection module 1402 and the control device 130 can be connected via a wire harness or wirelessly; the control device 130 can receive the sixth graphic information and the seventh graphic information, and parse the position information between the first detection device 101 and the second detection device 102 based on the sixth image information and the seventh image information.

[0087] By adopting the technical solution of this embodiment, the sixth graphic information and the seventh image information can be used as references to each other in the analytical calculation of the control device 130, which is conducive to improving the accuracy of the position information between the first detection device 101 and the second detection device 102 obtained by analytical calculation, and is conducive to improving the detection accuracy of the four-wheel aligner 1000.

[0088] For the convenience of explanation, the structure of the first detection device 101 is taken as an example for explanation below, wherein the structure of the second detection device 102 may refer to the structure of the first detection device 101 or may be different from the structure of the first detection device 101 .

[0089] In some embodiments, the first detection device 101 includes a housing 150, which is arranged to cover the first image acquisition module 1201 and the first position detection module 1401 to protect the first image acquisition module 1201 and the first position detection module 1401; the housing 150 has a first window 1514, and the first window 1514 is used to expose the fifth calibration part 141 for the corresponding image detection part to shoot.

[0090] In some embodiments, see Figure 5 and Figure 6 As shown, the fifth calibration element 141 is a self-luminous calibration element.

[0091] It is understandable that the fifth calibration member 141 has its own light source, thereby achieving self-luminescence of the fifth calibration member 141 .

[0092] In some examples, the light emitted by the fifth calibration component 141 is emitted from the first window 1514 to facilitate the corresponding image detection component to capture.

[0093] By adopting the technical solution of this embodiment, the fifth calibration part 141 adopts a self-luminous calibration part, which can emit light by itself, which is beneficial to improving the clarity of the fifth image information captured by the corresponding image acquisition part 142. The corresponding image acquisition part 142 has a good shooting effect, which is beneficial to improving the detection accuracy of the four-wheel aligner 1000.

[0094] In some embodiments, the fifth calibration component 141 includes a light board 1411 , a diffuser plate 1412 and a target plate 1413 . The light board 1411 , the diffuser plate 1412 and the target plate 1413 are stacked, and the diffuser plate 1412 is located between the light board 1411 and the target plate 1413 .

[0095] 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 1411, an LCD backlight light board 1411, an OLED light board 1411, a flexible light board 1411, a UV light board 1411, and an infrared light board 1411.

[0096] 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.

[0097] The target plate 1413 may refer to a characteristic image or characteristic point that can be photographed by the image acquisition component 142. 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 corresponding image acquisition component 142 to photograph.

[0098] In some examples, the target plate 1413 is located between the first window 1514 and the diffuser plate 1412 , so that the target plate 1413 is closest to the first window 1514 , so that the corresponding image acquisition element 142 can capture the characteristic image or characteristic point of the target plate 1413 .

[0099] 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 corresponding image acquisition component 142 to obtain clearer fifth image information, thereby improving the detection accuracy of the four-wheel aligner 1000.

[0100] 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.

[0101] 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 corresponding image acquisition component 142 to shoot; the distance between at least one calibration area and the light board 1411 is different from the distance between another calibration area and the light board 1411.

[0102] 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.

[0103] 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, more accurate position information between the first detection device 101 and the second detection device 102 can be analyzed, which is conducive to improving the detection accuracy of the four-wheel aligner 1000.

[0104] In some embodiments, see Figure 4 As shown, in the first position detection module 1401 or the second position detection module 1402, there are multiple fifth calibration members 141, and along the width direction of the vehicle 2000, the distances between at least two fifth calibration members 141 and the vehicle 2000 are different; the projections of the two fifth calibration members 141 at different distances from the vehicle 2000 along the width direction of the vehicle 2000 at least partially do not overlap.

[0105] The first position detection module 1401 may include multiple fifth calibration members 141 , and the second position detection module 1402 may also include multiple fifth calibration members 141 . The first position detection module 1401 may adopt the following structure, and the second position detection module 1402 may also adopt the following structure.

[0106] Along the width direction of vehicle 2000, at least two fifth calibration members 141 are at different distances from vehicle 2000. In some examples, first window 1514 is positioned toward vehicle 2000, and the distances between fifth calibration member 141 and vehicle 2000 are different. The distances between first window 1514 and fifth calibration member 141 are also different. By measuring the distance between first window 1514 and fifth calibration member 141, it can be determined that the distances between fifth calibration member 141 and vehicle 2000 are different. The number of fifth calibration members 141 at different distances from vehicle 2000 can be, but is not limited to, two, three, or four.

[0107] The projections of the two fifth 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 fifth calibration members 141 at different distances from the vehicle 2000 do not completely overlap, so that the calibration surfaces of the two fifth calibration members 141 can form a three-dimensional calibration structure. According to the three-dimensional calibration structure, more accurate position information between the first detection device 101 and the second detection device 102 can be parsed, which is beneficial to improving the detection accuracy of the four-wheel aligner 1000; in addition, the design of multiple fifth calibration members 141 makes the position arrangement of multiple fifth calibration members 141 more flexible, and the distance between the fifth calibration members 141 can be set to be larger, so that the calibration structure is more three-dimensional, further improving the accuracy of the position information between the first detection device 101 and the second detection device 102, which is beneficial to improving the detection accuracy of the four-wheel aligner 1000.

[0108] In some embodiments, the number of fifth calibration members 141 is four, the first fifth calibration member 141 and the third fifth calibration member 141 are spaced apart along the length direction of the vehicle 2000; the second fifth calibration member 141 is located on the lower side of the fifth calibration member 141 and on the side of the first fifth calibration member 141 close to the vehicle 2000, and the fourth fifth calibration member 141 is located on the upper side of the first fifth calibration member 141 and on the side of the first fifth calibration member 141 away from the vehicle 2000.

[0109] It can be understood that the number of the fifth calibration piece 141 is four, and the first fifth calibration piece 141 and the third fifth calibration piece 141 are spaced apart along the length direction of the vehicle 2000, so that there is a spacing between the first fifth calibration piece 141 and the third fifth calibration piece 141 in the length direction of the vehicle 2000, and the second fifth calibration piece 141 is located on the lower side of the first fifth calibration piece 141, so that there is a height difference between the second second calibration piece 202 and the first fifth calibration piece 141 in the height direction of the vehicle 2000, and the second fifth calibration piece 141 is located on the side of the first fifth calibration piece 141 close to the vehicle 2000, so that the second fifth calibration piece 141 is spaced apart from the first fifth calibration piece 141 along the width direction of the vehicle 2000, and the fourth fifth calibration piece 141 is located on the upper side of the first fifth calibration piece 141, so that there is a height difference between the fourth second calibration piece 202 and the first fifth calibration piece 141 along the height direction of the vehicle 2000, and the fourth fifth calibration piece 141 is located on the side of the first fifth calibration piece 141 away from the vehicle 2000, so that there is a space between the fourth fifth calibration piece 141 and the first fifth calibration piece 141 along the width direction of the vehicle 2000, and there is a space between the fourth fifth calibration piece 141 and the second fifth calibration piece 141 along the width direction of the vehicle 2000.

[0110] In some examples, when viewed along the height direction of the vehicle 2000 , the four fifth calibration members 141 are distributed up, down, left, and right; when viewed along the width direction of the vehicle 2000 , the four fifth calibration members 141 are distributed up, down, left, and right.

[0111] By adopting the technical solution of this embodiment, the four fifth calibration parts 141 can form a three-dimensional calibration structure. The three-dimensional calibration structure has better three-dimensionality and can parse more accurate position information between the first detection device 101 and the second detection device 102, which is beneficial to improving the accuracy of the four-wheel alignment detection of the vehicle 2000; in addition, the four fifth calibration parts 141 are distributed in this way, the structure is simple, and the processing and manufacturing are convenient.

[0112] In some embodiments, the image acquisition element 142 is located in the middle of the plurality of fifth calibration elements 141 .

[0113] The image acquisition member 142 is located at the center position of the arrangement of multiple fifth calibration members 141; for example, four fifth calibration members 141 are spaced apart along the circumference of the image acquisition member 142, the image acquisition member 142 is located between the first fifth calibration member 141 and the third fifth calibration member 141, and the image acquisition member 142 is also located between the second fifth calibration member 141 and the fourth fifth calibration member 141.

[0114] By adopting the technical solution of this embodiment, the image acquisition component 142 is located in the middle position of multiple fifth calibration components 141. When the first detection device 101 and the second detection device 102 shoot each other, the first calibration component 201 of the first detection device 101 can be located at or close to the center position of the shooting field of view of the image acquisition component 142 of the second detection device 102, and the first calibration component 201 of the second detection device 102 can be located at or close to the center position of the shooting field of view of the image acquisition component 142 of the first detection device 101. In this way, clearer sixth image information and seventh image information can be obtained, and more accurate position information between the first detection device 101 and the second detection device 102 can be parsed, which is beneficial to improving the detection accuracy of the four-wheel aligner 1000.

[0115] In some embodiments, the light emitted by the fifth calibration element 141 is invisible light.

[0116] 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.

[0117] By adopting the technical solution of this embodiment, the light emitted by the fifth 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 fifth calibration member 141, improving the clarity of the fifth image information, and facilitating improving the detection accuracy of the four-wheel aligner 1000.

[0118] In some embodiments, see Figure 2 and Figure 3 As shown, the housing 150 includes a shell 151 and a light-transmitting member 152. The fifth marking 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 fifth marking member 141 to pass through, and the light-transmitting member 152 can block at least part of the visible light.

[0119] 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 fifth 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 fifth calibration member 141 to pass through.

[0120] 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.

[0121] The light-transmitting member 152 allows at least part of the light emitted by the fifth calibration member 141 to pass through. It can be understood that all the light emitted by the fifth calibration member 141 can pass through the light-transmitting member 152, or part of the light emitted by the fifth 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 142 can capture the luminous fifth calibration member 141.

[0122] 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.

[0123] 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 fifth calibration member 141, improving the clarity of the fifth image information, and facilitating improving the detection accuracy of the four-wheel aligner 1000.

[0124] In some embodiments, see Figure 7As shown, the first detection device 101 also includes a mounting base 110, and the first image acquisition module 1201 includes two image acquisition units 121 installed on the mounting base 110, one of the image acquisition units 121 is arranged on the side of the mounting base 110 facing the first calibration piece 201 to acquire a first image; the other image acquisition unit 121 is arranged on the side of the mounting base 110 facing the second calibration piece 202 to acquire a second image.

[0125] The mounting base 110 may refer to a component for supporting the first position detection module 1401 and the first image acquisition module 1201 . The mounting base 110 may be fixed to a side of the supporting mechanism 3000 (eg, a lift, etc.) to fix the detection device of the vehicle 2000 .

[0126] The image acquisition unit 121 may refer to a component capable of capturing image information of a calibration part; among the two image acquisition units 121, one image acquisition unit 121 is used to capture the first calibration part 201 to obtain first image information, and the other image acquisition unit 121 is used to capture the second calibration part 202 to obtain second image information.

[0127] In some examples, the first detection device 101 is located between the front and rear wheels on the left side of the vehicle 2000, and the two image acquisition units 121 are symmetrically arranged front to back, so as to facilitate the acquisition of image information of the first calibration piece 201 and the second calibration piece 202.

[0128] By adopting the technical solution of this embodiment, the first detection device 101 can simultaneously integrate two image acquisition units 121, which is beneficial to improving the integration of the first detection device 101 and facilitating the detection of the first detection device 101; the first detection device 101 can simultaneously obtain image information located on the first calibration piece 201 and the second calibration piece 202, thereby improving the detection efficiency of the first detection device 101; in addition, the provision of the two image acquisition units 121 enables the first detection device 101 and the second detection device 102 to be arranged in the middle position of the left and right sides of the vehicle 2000. Compared with the method in which the first detection device 101 and the second detection device 102 are arranged on the front or rear side of the vehicle 2000, the site area required for the four-wheel aligner 1000 to be detected can be reduced, and the detection of the four-wheel aligner 1000 is more convenient and quick.

[0129] In some embodiments, the lens 12111 of the image acquisition unit 121 is disposed toward the vehicle 2000 and tilted upward.

[0130] The lens 12111 of the image acquisition unit 121 may refer to an optical component composed of multiple optical lenses in the image acquisition unit 121, and the optical axis of the lens 12111 may refer to the axis of the optical lens. Figure 7The center line A in the image acquisition unit 121; the lens 12111 of the image acquisition unit 121 is facing the vehicle 2000 and tilted upward, and the optical axis of the lens 12111 is also facing the vehicle 2000 and tilted upward. When the first detection device 101 is in the detection state, the distance between the center of the optical lens closest to the object image side and the vehicle 2000 is smaller than the distance between the center of the optical lens away from the object image side and the vehicle 2000, and the center of the optical lens closest to the object image side is higher than the center of the optical lens away from the object image side.

[0131] By adopting the technical solution of this embodiment, the lens 12111 of the image acquisition unit 121 is set toward the vehicle 2000, so that the wheels 2100 of vehicles 2000 of different widths can fall within the field of view of the image acquisition unit 121, and the image acquisition unit 121 can meet the detection requirements of the wheels 2100 of vehicles 2000 of different widths; and the lens 12111 of the image acquisition unit 121 is tilted upward, so that the wheels 2100 of vehicles 2000 of different heights can fall within the field of view of the image acquisition unit 121, and the image acquisition unit 121 can meet the detection requirements of the wheels 2100 of vehicles 2000 of different heights. In this way, the four-wheel aligner 1000 can meet the detection requirements of different models, thereby improving the versatility of the four-wheel aligner 1000.

[0132] In some embodiments, the angle between the optical axis of the lens 12111 of the image acquisition unit 121 and the horizontal plane is in the range of 12.5° to 18.5°.

[0133] The angle between the optical axis of the lens 12111 of the image acquisition unit 121 and the horizontal plane is α. When the first detection device 101 is in the detection state, α may refer to the angle between the optical axis of the lens 12111 of the image acquisition unit 121 and the horizontal plane. The horizontal plane may refer to a plane perpendicular to the vertical direction or a plane nearly perpendicular to the vertical direction. The horizontal plane can refer to Figure 7 The XY plane in .

[0134] The design of α≥12.5° enables the lens 12111 of the image acquisition unit 121 to tilt upward, which can meet the detection requirements of vehicles 2000 of different heights. The design of α≤18.5° prevents the lens 12111 of the image acquisition unit 121 from tilting too much upward, causing the wheel 2100 to be outside the shooting field of view of the image acquisition unit 121.

[0135] 12.5°≤α≤18.5°. It can be understood that the value of α can be 12.5°, 18.5°, or any value between 12.5° and 18.5°; for example, the value of α can be but is not limited to 12.5°, 13°, 14°, 15°, 16°, 17°, 18°, and 18.5°.

[0136] By adopting the technical solution of this embodiment, the wheels 2100 of most vehicle models of different heights can be located within the shooting field of view of the image acquisition unit 121, so that the first detection device 101 can meet the detection requirements of the wheels 2100 of most vehicle models of different heights.

[0137] In some embodiments, the angle between the optical axis of the lens 12111 of the image acquisition unit 121 and the auxiliary plane is in the range of 14° to 20°, and the auxiliary plane is perpendicular to the width direction of the vehicle 2000 .

[0138] When the first detection device 101 is in the detection state, the auxiliary plane may refer to a vertical plane perpendicular to or nearly perpendicular to the width direction of the vehicle 2000. Figure 7 wherein the width direction of the vehicle 2000 is parallel to the width direction of the lift, and the width direction of the vehicle 2000 may also refer to the width direction of the lift.

[0139] The angle between the optical axis of the lens 12111 of the image acquisition unit 121 and the auxiliary plane is β, where 14°≤β≤20°; it can be understood that the value of β can be 14°, 20° or any value between 14° and 20°; for example, the value of β can be but is not limited to 14°, 15°, 16°, 17°, 18°, 19°, and 20°.

[0140] The design of β≥14° enables the lens 12111 of the image acquisition unit 121 to be tilted toward the vehicle 2000, which can meet the detection requirements of vehicles 2000 of different widths. The design of β≤20° prevents the lens 12111 of the image acquisition unit 121 from tilting too much toward the vehicle 2000, causing the wheel 2100 to be outside the shooting field of view of the image acquisition unit 121.

[0141] By adopting the technical solution of this embodiment, the wheels 2100 of most vehicle models of different widths can be located within the field of view of the image acquisition unit 121, so that the first detection device 101 can meet the detection requirements of the wheels 2100 of most vehicle models of different widths.

[0142] In some embodiments, the angle between the optical axis of the lens 12111 of the image acquisition unit 121 and the horizontal plane is in the range of 12.5° to 18.5°, and the angle between the optical axis of the lens 12111 of the image acquisition unit 121 and the auxiliary plane is in the range of 14° to 20°, and the auxiliary plane is perpendicular to the width direction of the vehicle 2000.

[0143] By adopting the technical solution of this embodiment, the wheels 2100 of most vehicle models can be located within the field of view of the image acquisition unit 121, so that the first detection device 101 can meet the detection requirements of most vehicle models 2000.

[0144] In some embodiments, see Figure 8 and Figure 9 As shown, the image acquisition unit 121 includes a camera 1211 and a fill light 1212 , and the fill light 1212 is arranged around the lens 12111 of the camera 1211 .

[0145] The camera 1211 may refer to a component capable of taking pictures. The camera 1211 may be, but is not limited to, a black and white camera, a color camera, an infrared camera, and the like.

[0146] The fill light 1212 can be a lamp that can emit light. The fill light 1212 can be but is not limited to an LED lamp, an incandescent lamp, etc. The fill light 1212 can provide light to the camera 1211, making the image information captured by the camera 1211 clearer, which is conducive to improving the detection accuracy of the first detection device 101.

[0147] The fill light 1212 is disposed around the lens 12111 of the camera 1211 . The fill light 1212 is annular in structure and has a through hole 1212 a formed therein. The lens 12111 of the camera 1211 is located in the through hole 1212 a .

[0148] In some examples, the fill light 1212 is a ring-shaped light tube, which is arranged around the lens 12111 of the image acquisition unit 121 .

[0149] In some examples, the fill light 1212 includes a substrate 12121 and a plurality of light-emitting components 12122 mounted 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 around the lens 12111 of the camera 1211.

[0150] The substrate 12121 may refer to a plate for supporting the light-emitting element 12122 . The substrate 12121 may be a circuit board. The circuit board may provide electrical energy to the light-emitting element 12122 and also support the light-emitting element 12122 .

[0151] The light-emitting component 12122 may refer to a component that can emit light. The light-emitting component 12122 may be, but is not limited to, an LED, a light bulb, etc.

[0152] The through hole 1212a passes through the two opposite surfaces of the substrate 12121 along the thickness direction, and the lens 12111 of the camera 1211 is penetrated by the through hole 1212a1212a, so that the lens 12111 of the camera 1211 can be exposed from the through hole 1212a, thereby photographing the calibration part; the optical axis of the lens 12111 of the camera 1211 can coincide with or nearly coincide with the axis of the through hole 1212a, so as to facilitate the subsequent uniform distribution of multiple light-emitting parts 12122 on the surrounding side of the lens 12111 of the camera 1211.

[0153] The number of the light-emitting elements 12122 is greater than or equal to two, for example, three, four, five, or ten.

[0154] The plurality of light emitting elements 12122 are distributed along the circumference of the lens 12111 of the camera 1211 , and the plurality of light emitting elements 12122 are distributed at intervals along the circumference of the lens 12111 of the camera 1211 .

[0155] In some examples, the plurality of light emitting elements 12122 are distributed in a circular array around the axis of the through hole 1212a. The plurality of light emitting elements 12122 are arranged regularly, and the fill light of the camera 1211 is uniform and has a good fill light effect. The plurality of light emitting elements 12122 can be distributed in one circle or multiple circles.

[0156] By adopting the technical solution of this embodiment, the fill light 1212 is arranged around the lens 12111 of the camera 1211, and light is emitted from the surrounding sides of the lens 12111 of the camera 1211, which has a good fill light effect, is conducive to improving the clarity of the image information captured by the camera 1211, and improving the detection accuracy of the four-wheel aligner 1000.

[0157] In some embodiments, the image acquisition unit 121 further 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 .

[0158] The first bracket 1213 and the second bracket 1214 are used to fix the components of the camera 1211 and the fill light 1212 respectively; the camera 1211 can be fixed to the first bracket 1213 by fasteners (for example: screws, bolts, etc.), bonding, clamping, etc., and the fill light 1212 can be fixed to the second bracket 1214 by fasteners (for example: screws, bolts, etc.), bonding, clamping, etc.

[0159] For example, the first bracket 1213 can be made up of multiple parts, and the multiple parts can be spliced together to form an inclined first fixed surface more easily. By installing the camera 1211 on the first fixed surface, the lens 12111 of the camera 1211 can be installed at an angle, which reduces the difficulty of installing the camera 1211 and improves the accuracy of the installation position of the camera 1211. Of course, the first bracket 1213 can be an integrated molded structure or other structures.

[0160] For example, the second bracket 1214 can be formed by bending a plate. The bent plate can easily form an inclined second fixing surface. By mounting the fill light 1212 on the second fixing surface, the fill light 1212 can be installed at an angle, reducing the difficulty of installing the fill light 1212. The inclination of the fill light 1212 can be adapted to the inclination of the lens 12111 of the camera 1211, thereby improving the shooting effect of the camera 1211. Of course, in other examples, the second bracket 1214 can also have other structures.

[0161] The first bracket 1213 and the second bracket 1214 are spaced apart from each other, so that there is a certain gap between the first bracket 1213 and the second bracket 1214 and they do not contact each other.

[0162] By adopting the technical solution of this embodiment, the first bracket 1213 and the second bracket 1214 are not in contact, and the camera 1211 and the fill light 1212 are fixed relatively independently, thereby 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 first calibration part 201 captured by the camera 1211 and improving the detection accuracy of the vehicle 2000 detection device.

[0163] In some embodiments, the first position detection module 1401 and the first image acquisition module 1201 are both installed on the mounting base 110, and the first position detection module 1401 is located on the side of the first image acquisition module 1201 facing the vehicle 2000. Such distribution can facilitate the image acquisition unit 121 and the image acquisition component 142 to capture image information.

[0164] In some embodiments, see Figures 4-6 As shown, the first position detection module 1401 also includes a third bracket 143 and a fourth bracket 144 fixed to the mounting base 110, the fifth calibration component 141 is installed on the third bracket 143, and the image acquisition component 142 is installed on the fourth bracket 144, thereby achieving the fixation of the fifth calibration component 141 and the image acquisition component 142.

[0165] 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 component 202 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.).

[0166] In some embodiments, see Figure 7 As shown, the mounting base 110 has a mounting surface 1131 , and the first position detection module 1401 and the two image acquisition units 121 are mounted on the mounting surface 1131 .

[0167] The mounting surface 1131 may refer to a surface of the mounting base 110 used to support the first position detection module 1401 and the two image acquisition units 121. The mounting surface 1131 may be a flat surface, a stepped surface, or the like.

[0168] In some examples, the third bracket 143 , the fourth bracket 144 , the first bracket 1213 and the second bracket 1214 may be fixed to the mounting surface 1131 by fasteners (eg, screws), snap-fitting, bonding, or the like.

[0169] By adopting the technical solution of this embodiment, the first position detection module 1401 and the two image acquisition units 121 are installed on the same surface, which can reduce the installation error of the first position detection module 1401 and the two image acquisition units 121, which is conducive to improving the accuracy of the relative fixed position between the first position detection module 1401 and the two image acquisition units 121, and is conducive to improving the detection accuracy of the four-wheel aligner 1000.

[0170] In some embodiments, see Figure 7 As shown, the mounting base 110 includes a base 111, a support frame 112 and a mounting plate 113. The support frame 112 is connected between the base 111 and the mounting plate 113 so that the base 111 and the mounting plate 113 are spaced apart. The surface of the mounting plate 113 facing away from the support frame 112 forms a mounting surface 1131.

[0171] The base 111 may refer to the bottom portion of the mounting base 110.

[0172] The mounting plate 113 may refer to a plate in the mounting base 110 for supporting the first position detection module 1401 and the two image acquisition units 121 . The mounting plate 113 may be, but is not limited to, a metal plate, a plastic plate, or the like.

[0173] The support frame 112 may refer to the portion of the mounting base 110 that connects the mounting plate 113 and the base 111. The support frame 112 can lift the mounting plate 113, thereby creating a gap between the base 111 and the mounting plate 113. The support frame 112 is a lightweight frame structure that helps reduce the weight of the first detection device 101, thereby facilitating its use.

[0174] It should be noted that the height of the support frame 112 needs to be reasonably designed so that the first position detection module 1401 and the second position detection module 1402 can use the space between the supporting mechanism 3000 and the chassis of the vehicle 2000 to shoot each other and reduce obstruction.

[0175] By adopting the technical solution of this embodiment, the first position detection module 1401 and the two image acquisition units 121 are installed on the mounting plate 113. The installation operation is simple, and the surface flatness of the mounting plate 113 is good. The surface of the mounting surface 1131 facing away from the support frame 112 forms the mounting surface 1131. The good flatness of the mounting surface 1131 can effectively reduce the installation error of the first position detection module 1401 and the two image acquisition units 121, which is conducive to improving the accuracy of the relative fixed position between the first position detection module 1401 and the two image acquisition units 121, and is conducive to improving the detection accuracy of the first detection device 101. In addition, the support frame 112 can elevate the first position detection module 1401 and the two image acquisition units 121, which can increase the shooting field of view of the first position detection module 1401 and the two image acquisition units 121, and is conducive to improving the accuracy of detection. The support frame 112 and the mounting plate 113 have a simple structure and are easy to process and manufacture.

[0176] In some embodiments, the mounting surface 1131 is planar.

[0177] By adopting the technical solution of this embodiment, the first position detection module 1401 and the two image acquisition units 121 are installed on the same plane, which can effectively reduce the installation error of the first position detection module 1401 and the two image acquisition units 121, and improve the accuracy of the relative fixed position between the first position detection module 1401 and the two image acquisition units 121, which is conducive to improving the detection accuracy of the first detection device 101; in addition, the installation operation structure of the first position detection module 1401 and the two image acquisition units 121 is simple, which facilitates the assembly of the first detection device 101.

[0178] In some embodiments, see Figure 7 As shown, 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 .

[0179] The magnetic surface 111 a may refer to a surface of the mounting base 110 used for magnetic fixation with the supporting mechanism 3000 .

[0180] 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 .

[0181] 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.

[0182] 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.

[0183] 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.

[0184] By adopting the technical solution of this embodiment, the mounting base 110 can be magnetically fixed to the supporting mechanism 3000 through the magnetic surface 111a. The fixing stability of the mounting base 110 is good, the shooting stability of the image acquisition unit 121 and the image acquisition member 142 is good, and the clarity of the acquired image information is better, which is conducive to improving the detection accuracy of the four-wheel aligner 1000. In addition, the use of magnetic connection facilitates the installation and position adjustment of the first detection device 101.

[0185] In some embodiments, the first detection device 101 includes a battery for powering the first position detection module 1401 and the first image acquisition module 1201. The battery is located within the base 111 and can power the position detection module and the image acquisition module, eliminating the need for an external power source. This makes the detection operation of the first detection device 101 more convenient. The battery can power the electronic components within the first position detection module 1401, such as the main board, camera, and light board.

[0186] In some embodiments, see Figure 10 As shown, the height difference between the lens 12111 of the image acquisition unit 121 and the magnetic surface 111 a ranges from 100 mm to 160 mm.

[0187] The height difference between the lens 12111 of the image acquisition unit 121 and the magnetic surface 111 a may refer to a height difference between the center of the mirror surface of the lens 12111 of the image acquisition unit 121 and the center of the magnetic surface 111 a .

[0188] The height difference between the lens 12111 of the image acquisition unit 121 and the magnetic surface 111a is H, where 100 mm ≤ H ≤ 160 mm. The value of H can be 100 mm, 160 mm, or any value between 100 mm and 160 mm. For example, the value of H can be, but is not limited to, 100 mm, 110 mm, 120 mm, 130 mm, 140 mm, 150 mm, or 160 mm.

[0189] With a design of H≥100mm, when the magnetic surface 111a is magnetically attracted to the side of the carrying mechanism 3000, the image acquisition unit 121 can be located above the carrying platform of the carrying mechanism 3000, thereby reducing the obstruction of the carrying mechanism 3000 to the shooting field of view of the image acquisition unit 121, which is beneficial for the image acquisition unit 121 to obtain clear image information and improve the detection accuracy of the first detection device 101; with a design of H≤160mm, the lens 12111 of the image acquisition unit 121 is not set too high, thereby causing the target calibration part to be located outside the shooting field of view of the image acquisition unit 121.

[0190] By adopting the technical solution of this embodiment, the image acquisition unit 121 is able to acquire clear image information, thereby improving the detection accuracy of the wheel aligner 1000.

[0191] In some embodiments, along the width direction of the vehicle 2000 , the distance between the lens 12111 of the image acquisition unit 121 and the magnetic surface 111 a ranges from 160 mm to 220 mm.

[0192] The distance between the lens 12111 of the image acquisition unit 121 and the magnetic surface 111 a along the width direction of the vehicle 2000 may refer to the distance between the center of the mirror surface of the lens 12111 and the magnetic surface 111 a in the width direction of the vehicle 2000 .

[0193] Along the width direction of vehicle 2000, the distance between lens 12111 of image acquisition unit 121 and magnetic surface 111a is L, where 160 mm ≤ L ≤ 220 mm. The value of L can be 160 mm, 220 mm, or any value between 160 mm and 220 mm. For example, the value of L can be, but is not limited to, 160 mm, 170 mm, 180 mm, 190 mm, 200 mm, 210 mm, or 22 mm.

[0194] The design of L≥160mm allows a distance between the lens 12111 of the image acquisition unit 121 and the vehicle 2000, increasing the field of view of the image acquisition unit 121 for photographing the target calibration part, which is beneficial for the image acquisition unit 121 to obtain clear image information and can also meet the detection requirements of vehicles 2000 of different widths; the design of L≤220mm allows the lens 12111 of the image acquisition unit 121 to not be too far away from the vehicle 2000, so that the image acquisition unit 121 can obtain clear image information.

[0195] By adopting the technical solution of this embodiment, the image acquisition unit 121 is able to acquire clear image information, thereby improving the detection accuracy of the first detection device 101.

[0196] In some embodiments, see Figure 8 As shown, the height difference between the lens 12111 of the image acquisition unit 121 and the magnetic surface 111a ranges from 100mm to 160mm, and along the width direction of the vehicle 2000, the distance between the lens 12111 of the image acquisition unit 121 and the magnetic surface 111a ranges from 160mm to 220mm.

[0197] By adopting the technical solution of this embodiment, the image acquisition unit 121 is able to acquire clear image information, thereby improving the detection accuracy of the first detection device 101.

[0198] In some embodiments, see Figure 4 and Figure 7 As shown, the base 111 is in the shape of an elongated strip, and a magnetic surface 111a is formed on one end face of the base 111. The support frame 112 is installed on the other end of the base 111, and the image acquisition unit 121 and the first position detection module 1401 are installed on the support frame 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, and the image acquisition unit 121 is installed on the support frame 112 located at the other end of the base 111, 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 clear image information.

[0199] In some embodiments, 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 first detection device 101 to facilitate the use of the first detection device 101. The indicator unit 1112 can be but is not limited to an indicator light or a display panel.

[0200] In some embodiments, see Figure 2 and Figure 3 As shown, 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 capture and obtain image information.

[0201] In some embodiments, the housing 151 is formed with a handle 1516 for a person to hold, facilitating the use of the first detection device 101 .

[0202] 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.

[0203] In some examples, the shell 151 includes a first shell 1511 and a second shell 1512, which are spliced and enclosed to form an installation space for the first detection module and the two image acquisition units 121; 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 facilitates the assembly of the first detection device 101.

[0204] The structure of the first detection device 101 is described above, wherein the structure of the second detection device 102 may be the same as that of the first detection device 101 or may be different therefrom.

[0205] In some embodiments, see Figures 1 to 4As shown, the control device 130 also includes a first control component 131 and a second control component 132, the first control component 131 is arranged in the first detection device 101, and the second control component 132 is arranged in the second detection device 102; the first control component 131 is connected to the first detection device 101 to receive the first image information, the second image information and the sixth image information; the second control component 132 is connected to the second detection device 102 to receive the third image information, the fourth image information and the seventh image information; the first control component 131 and the second control component 132 are connected by wire or wirelessly; the first control component 131 transmits the first image information, the second image information and the sixth image information to the second control component 132, and the second control component 132 receives the first image information, the second image information and the sixth image information, and parses the four-wheel alignment information of the vehicle 2000 according to the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information and displays the four-wheel alignment information of the vehicle 2000.

[0206] The control device 130 is divided into two parts, one of which is a first control component 131 and the other is a second control component 132. The first control component 131 is located in the first detection device 101, and the second control component 132 is located in the second detection device 102. For example, the first control component 131 can be a main board in the first detection device 101, and the second control component 132 can be a main board in the second detection device 102.

[0207] The first control component 131 is connected to the image acquisition component 142 of the first detection device 101 and the two image acquisition units 121 of the first detection device 101, wherein the connection can be wired through a wiring harness or wirelessly connected through a Bluetooth communication connection, a WIFI communication connection, etc.; the first control component 131 can receive the first image information, the second image information and the sixth image information.

[0208] In some examples, the first control member 131 is installed on the installation surface 1131 and is located between the two image acquisition units 121 of the first detection device 101 to facilitate connection between the first control member 131 and the two image acquisition units 121 of the first detection device 101 .

[0209] The second control component 132 is connected to the image acquisition component 142 of the second detection device 102 and the two image acquisition units 121 of the second detection device 102, wherein the connection can be wired through a wiring harness or wirelessly connected through a Bluetooth communication connection, a WIFI communication connection, etc.; the second control component 132 can receive the third image information, the fourth image information and the seventh image information.

[0210] In some examples, the second control member 132 is installed on the installation surface 1131 and is located between the two image acquisition units 121 of the second detection device 102 to facilitate connection between the second control member 132 and the two image acquisition units 121 of the second detection device 102 .

[0211] The first control component 131 is connected to the second control component 132 , and the connection may be wired via a wiring harness, or wirelessly via a Bluetooth communication connection, a WIFI communication connection, etc., so as to realize data transmission between the first control component 131 and the second control component 132 .

[0212] The first control component 131 does not have computing capability, while the second control component 132 has computing capability. The first control component 131 can transmit the first image information, the second image information, and the sixth image information to the second control component 132. After receiving the first image information, the second image information, the third image information, the fourth image information, the sixth image information, and the seventh image information, the second control component 132 analyzes and calculates the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information, and the seventh image information. The second control component 132 also has a display function, thereby displaying the four-wheel alignment information of the vehicle 2000. For example, the second control component 132 also includes a display unit, such as an electronic display screen.

[0213] By adopting the technical solution of this embodiment, the first detection device 101 and the second detection device 102 can directly display the four-wheel alignment information of the vehicle 2000 after the detection is completed, and the four-wheel aligner 1000 is simple and convenient to use.

[0214] In some embodiments, the second control component 132 transmits the third image information, the fourth image information and the seventh image information to the first control component 131, the first control component 131 receives the first image information, the second image information and the sixth image information, and parses the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information and displays the four-wheel alignment information of the vehicle 2000.

[0215] The first control component 131 has computing capability, and the second control component 132 does not have computing capability. The second control component 132 can transmit the third image information, the fourth image information and the seventh image information to the first control component 131. After receiving the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, the first control component 131 analyzes and calculates the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information; the first control component 131 also has a display function, thereby displaying the four-wheel alignment information of the vehicle 2000. For example, the first control component 131 also includes a display unit, such as an electronic display screen.

[0216] By adopting the technical solution of this embodiment, the first detection device 101 and the second detection device 102 can directly display the four-wheel alignment information of the vehicle 2000 after the detection is completed, and the four-wheel aligner 1000 is simple and convenient to use.

[0217] In some embodiments, the control device 130 further includes a third control member 133, a fourth control member 134, and a fifth control member 135. The third control member 133 is provided in the first detection device 101, and the fourth control member 134 is provided in the second detection device 102; the fifth control member 135 is an independent component; the third control member 133 is connected to the first detection device 101 to receive the first image information, the second image information, and the sixth image information; the fourth control member 134 is connected to the second detection device 102 to receive the third image information, the fourth image information, and the seventh image information; the third control member 133 can use a wireless or wired method to transmit the first image information to the first detection device 101, and the fourth control member 134 ... The first image information, the second image information, the third image information and the sixth image information are directly transmitted to the fifth control component 135 or are transmitted to the fifth control component 135 through the fourth control component 134. The fourth control component 134 can use wireless or wired methods to transmit the third image information, the fourth image information and the seventh image information directly to the fifth control component 135 or transmit them to the fifth control component 135 through the third control component 133; the fifth control component 135 can parse the four-wheel alignment information of the vehicle 2000 according to the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information and display the four-wheel alignment information of the vehicle 2000.

[0218] The control device 130 is divided into three parts: the first part is the third control component 133, the second part is the fourth control component 134, and the third part is the fifth control component 135. The third control component 133 is located in the first detection device 101, the fourth control component 134 is located in the second detection device 102, and the fifth control component 135 is a component independent of the first detection device 101 and the second detection device 102. The fifth control component 135 also has a display function, thereby displaying the four-wheel alignment information of the vehicle 2000 for easy viewing by the inspection personnel. For example, the third control component 133 can be the mainboard of the first detection device 101, the fourth control component 134 can be the mainboard of the second detection device 102, and the fifth control component 135 can be an electronic device such as a mobile phone, tablet, watch, or computer.

[0219] The third control component 133 is connected to the image acquisition component 142 of the first detection device 101 and the two image acquisition units 121 of the first detection device 101, wherein the connection can be wired through a wiring harness or wirelessly connected through a Bluetooth communication connection, a WIFI communication connection, etc.; the third control component 133 can receive the first image information, the second image information and the sixth image information.

[0220] In some examples, the third control member 133 is installed on the installation surface 1131 and is located between the two image acquisition units 121 of the first detection device 101 to facilitate connection between the third control member 133 and the two image acquisition units 121 of the first detection device 101 .

[0221] The fourth control component 134 is connected to the image acquisition component 142 of the second detection device 102 and the two image acquisition units 121 of the second detection device 102, wherein the connection can be wired through a wiring harness, or wirelessly connected through a Bluetooth communication connection, a WIFI communication connection, etc.; the fourth control component 134 can receive the third image information, the fourth image information and the seventh image information.

[0222] In some examples, the fourth control member 134 is installed on the installation surface 1131 and is located between the two image acquisition units 121 of the second detection device 102 to facilitate connection between the fourth control member 134 and the two image acquisition units 121 of the second detection device 102 .

[0223] In some examples, the third control component 133 is connected to the fourth control component 134, and the fourth control component 134 is connected to the fifth control component 135; wherein, the connection can be wired through a wiring harness, or it can be wirelessly connected through Bluetooth communication connection, WIFI communication connection, etc., so as to realize data transmission between the third control component 133, the fourth control component 134 and the fifth control component 135.

[0224] The third control component 133 and the fourth control component 134 do not have computing capabilities, and the fifth control component 135 has computing capabilities. The third control component 133 can transmit the first image information, the second image information and the sixth image information to the fourth control component 134. After the fourth control component 134 receives the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, it transmits the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information to the fifth control component 135. The fifth control component 135 analyzes and calculates the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information.

[0225] In some examples, the third control component 133 is connected to the fourth control component 134, and the third control component 133 is connected to the fifth control component 135; wherein, the connection can be wired through a wiring harness, or it can be wirelessly connected through Bluetooth communication connection, WIFI communication connection, etc., so as to realize data transmission between the third control component 133, the fourth control component 134 and the fifth control component 135.

[0226] The third control component 133 and the fourth control component 134 do not have computing capabilities, the fifth control component 135 has computing capabilities, the fourth control component 134 can transmit the third image information, the fourth image information and the seventh image information to the third control component 133, the third control component 133 receives the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, and transmits the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information to the fifth control component 135, the fifth control component 135 analyzes and calculates the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information.

[0227] In some examples, the third control component 133 is connected to the fifth control component 135, and the fourth control component 134 is connected to the fifth control component 135; wherein, the connection can be wired through a wiring harness, or wirelessly connected through Bluetooth communication connection, WIFI communication connection, etc., thereby realizing data transmission between the third control component 133, the fourth control component 134 and the fifth control component 135.

[0228] The third control component 133 and the fourth control component 134 do not have computing capabilities, but the fifth control component 135 has computing capabilities. The third control component 133 can transmit the first image information, the second image information and the sixth image information to the fifth control component 135, and the fourth control component 134 can transmit the third image information, the fourth image information and the seventh image information to the fifth control component 135. The fifth control component 135 analyzes and calculates the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information.

[0229] In some examples, the third control component 133 is connected to the fourth control component 134, the third control component 133 is connected to the fifth control component 135, and the fourth control component 134 is connected to the fifth control component 135; wherein, it can be a wired connection through a wiring harness, or it can be a wireless connection through Bluetooth communication connection, WIFI communication connection, etc., so as to realize data transmission between the third control component 133, the fourth control component 134 and the fifth control component 135.

[0230] The third control component 133 and the fourth control component 134 do not have computing capabilities, and the fifth control component 135 has computing capabilities. The third control component 133 can transmit the first image information, the second image information and the sixth image information to the fourth control component 134, and the fourth control component 134 transmits the first image information, the second image information and the sixth image information to the fifth control component 135. The fourth control component 134 can transmit the third image information, the fourth image information and the seventh image information to the third control component 133, and the third control component 133 transmits the third image information, the fourth image information and the seventh image information to the fifth control component 135. The fifth control component 135 analyzes and calculates the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information.

[0231] By adopting the technical solution of this embodiment, a separate fifth control member 135 is used to perform calculation and analysis on the image information, while the third control member 133 in the first detection device 101 and the fourth control member 134 in the second detection device 102 do not have calculation and analysis capabilities, which can reduce the production costs of the first detection device 101 and the second detection device 102. In addition, the fifth control member 135 is an independent component and can move with the detection personnel during the detection, thereby facilitating the viewing of the four-wheel alignment information of the vehicle 2000 at any time and facilitating the use of the four-wheel aligner 1000.

[0232] In some embodiments, the third control component 133 can transmit the first image information, the second image information and the sixth image information directly to the fourth control component 134 wirelessly or by wire, or transmit them to the fourth control component 134 through the fifth control component 135; the fourth control component 134 can parse the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, and transmit the four-wheel alignment information of the vehicle 2000 to the fifth control component 135 for display.

[0233] In some examples, the third control component 133 is connected to the fifth control component 135, and the fifth control component 135 is connected to the fourth control component 134; wherein, the connection can be wired through a wiring harness, or it can be wirelessly connected through Bluetooth communication connection, WIFI communication connection, etc., so as to realize data transmission between the third control component 133, the fourth control component 134 and the fifth control component 135.

[0234] The third control component 133 and the fifth control component 135 do not have computing capabilities, and the fourth control component 134 has computing capabilities. The third control component 133 can transmit the first image information, the second image information and the sixth image information to the fifth control component 135, and the fifth control component 135 transmits the first image information, the second image information and the sixth image information to the fourth control component 134. After the fourth control component 134 receives the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, it analyzes and calculates the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, and the fourth control component 134 transmits the four-wheel alignment information of the vehicle 2000 to the fifth control component 135 for display.

[0235] In some examples, the third control component 133 is connected to the fourth control component 134, and the fourth control component 134 is connected to the fifth control component 135; wherein, the connection can be wired through a wiring harness, or it can be wirelessly connected through Bluetooth communication connection, WIFI communication connection, etc., so as to realize data transmission between the third control component 133, the fourth control component 134 and the fifth control component 135.

[0236] The third control component 133 and the fifth control component 135 do not have computing capabilities, but the fourth control component 134 has computing capabilities. The third control component 133 can transmit the first image information, the second image information and the sixth image information to the fourth control component 134. After the fourth control component 134 receives the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, it analyzes and calculates the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information. The fourth control component 134 transmits the four-wheel alignment information of the vehicle 2000 to the fifth control component 135 for display.

[0237] By adopting the technical solution of this embodiment, the fourth control member 134 in the second detection device 102 is used to perform calculation and analysis on the image information to obtain the four-wheel alignment information of the vehicle 2000, while the separate fifth control member 135 has the ability to display the four-wheel alignment information of the vehicle 2000 but does not have the calculation and analysis capabilities. The requirements for the fifth control member 135 are low, and the versatility between the first detection device 101 and the second detection device 102 and the fifth control member 135 can be improved, thereby facilitating the use of the four-wheel aligner 1000. In addition, the fifth control member 135 is an independent component and can move with the inspector during inspection, thereby facilitating the viewing of the four-wheel alignment information of the vehicle 2000 at any time and facilitating the use of the four-wheel aligner 1000.

[0238] In some embodiments, the fourth control component 134 can transmit the third image information, the fourth image information and the seventh image information directly to the third control component 133 wirelessly or by wire, or transmit them to the third control component 133 through the fifth control component 135; the third control component 133 can parse the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, and transmit the four-wheel alignment information of the vehicle 2000 to the fifth control component 135 for display.

[0239] In some examples, the fourth control component 134 is connected to the fifth control component 135, and the third control component 133 is connected to the fourth control component 134; wherein, the connection can be wired through a wiring harness, or it can be wirelessly connected through Bluetooth communication connection, WIFI communication connection, etc., so as to realize data transmission between the third control component 133, the fourth control component 134 and the fifth control component 135.

[0240] The fourth control component 134 and the fifth control component 135 do not have computing capabilities, the third control component 133 has computing capabilities, the fourth control component 134 can transmit the third image information, the fourth image information and the seventh image information to the fifth control component 135, the fifth control component 135 transmits the third image information, the fourth image information and the seventh image information to the third control component 133, after the third control component 133 receives the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, and analyzes and calculates the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, the third control component 133 transmits the four-wheel alignment information of the vehicle 2000 to the fifth control component 135 for display.

[0241] In some examples, the third control component 133 is connected to the fourth control component 134, and the third control component 133 is connected to the fifth control component 135; wherein, the connection can be wired through a wiring harness, or it can be wirelessly connected through Bluetooth communication connection, WIFI communication connection, etc., so as to realize data transmission between the third control component 133, the fourth control component 134 and the fifth control component 135.

[0242] The fourth control component 134 and the fifth control component 135 do not have computing capabilities, but the third control component 133 has computing capabilities. The fourth control component 134 can transmit the third image information, the fourth image information and the seventh image information to the third control component 133. After the third control component 133 receives the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, it analyzes and calculates the four-wheel alignment information of the vehicle 2000 based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information. The third control component 133 transmits the four-wheel alignment information of the vehicle 2000 to the fifth control component 135 for display.

[0243] By adopting the technical solution of this embodiment, the third control member 133 in the first detection device 101 is used to perform calculation and analysis on the image information to obtain the four-wheel alignment information of the vehicle 2000, while the separate fifth control member 135 has the ability to display the four-wheel alignment information of the vehicle 2000 but does not have the calculation and analysis capabilities. The requirements for the fifth control member 135 are low, and the versatility between the first detection device 101 and the second detection device 102 and the fifth control member 135 can be improved, thereby facilitating the use of the four-wheel aligner 1000. In addition, the fifth control member 135 is an independent component and can move with the inspector during inspection, thereby facilitating the viewing of the four-wheel alignment information of the vehicle 2000 at any time and facilitating the use of the four-wheel aligner 1000.

[0244] 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.

[0245] 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 four-wheel aligner, characterized in that: include: a first detection device, configured to be disposed on a left side of the vehicle, the first detection device comprising a first position detection module and a first image acquisition module, the first image acquisition module being configured to acquire first image information of a first calibration member mounted on a left front wheel of the vehicle and second image information of a second calibration member mounted on a left rear wheel of the vehicle; a second detection device, configured to be disposed on a right side of the vehicle, the second detection device comprising a second position detection module and a second image acquisition module, the second image acquisition module being configured to acquire third image information of a third calibration member mounted on a right front wheel of the vehicle and fourth image information of a fourth calibration member mounted on a right rear wheel of the vehicle; one of the first position detection module and the second position detection module comprising a fifth calibration member, and the other comprising an image acquisition member, the image acquisition member being configured to capture fifth image information of the fifth calibration member; A control device is connected to the first image acquisition module, the second image acquisition module and the image acquisition element to receive the first image information, the second image information, the third image information, the fourth image information and the fifth image information, and parse the four-wheel alignment information of the vehicle based on the first image information, the second image information, the third image information, the fourth image information and the fifth image information.

2. The four-wheel aligner according to claim 1, characterized in that: The first position detection module and the second position detection module include the image acquisition component and the fifth calibration component; The image acquisition component of the first position detection module is used to capture sixth image information of the fifth calibration component of the second position detection module; The image acquisition component of the second position detection module is used to capture seventh image information of the fifth calibration component of the first position detection module; The fifth image information includes at least one of the sixth image information and the seventh image information; The image acquisition component of the first position detection module and the image acquisition component of the second position detection module are both connected to the control device so that the control device can receive the sixth image information and the seventh image information, and parse the position information between the first detection device and the second detection device based on the sixth image information and the seventh image information.

3. The four-wheel aligner according to claim 1, characterized in that: The fifth calibration element is a self-luminous calibration element.

4. The four-wheel aligner according to claim 3, characterized in that: The fifth calibration component includes a light board, a light scattering plate and a target plate. The light board, the light scattering plate and the target plate are stacked, and the light scattering plate is located between the light board and the target plate.

5. The four-wheel aligner according to claim 4, 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.

6. The four-wheel aligner according to claim 2, characterized in that: In the first position detection module or the second position detection module, there are multiple fifth calibration members, and along the width direction of the vehicle, at least two of the fifth calibration members are at different distances from the vehicle; the projections of the two fifth calibration members at different distances from the vehicle along the width direction of the vehicle at least partially do not overlap.

7. The four-wheel aligner according to claim 6, characterized in that: The number of the fifth marking members is four, the first and third fifth marking members are spaced apart along the length direction of the vehicle; the second fifth marking member is located on the lower side of the fifth marking member and on the side of the first fifth marking member close to the vehicle, and the fourth fifth marking member is located on the upper side of the first fifth marking member and on the side of the first fifth marking member away from the vehicle.

8. The four-wheel aligner according to claim 6, characterized in that: The image acquisition component is located in the middle of the plurality of fifth calibration components.

9. The four-wheel aligner according to any one of claims 1 to 8, characterized in that: The first detection device also includes a mounting base, and the first image acquisition module includes two image acquisition units installed on the mounting base, one of the image acquisition units is arranged on the side of the mounting base facing the first calibration piece to obtain the first image information; the other image acquisition unit is arranged on the side of the mounting base facing the second calibration piece to obtain the second image information.

10. The four-wheel aligner according to claim 9, characterized in that: The lens of the image acquisition unit is arranged toward the vehicle and tilted upward.

11. The four-wheel aligner according to claim 10, characterized in that: The angle between the optical axis of the lens of the image acquisition unit and the horizontal plane is in the range of 12.5° to 18.5°; And / or, the angle between the optical axis of the lens of the image acquisition unit and the auxiliary plane is in the range of 14° to 20°, and the auxiliary plane is perpendicular to the width direction of the vehicle.

12. The four-wheel aligner according to claim 9, characterized in that: The image acquisition unit includes a camera and a fill light, and the fill light is arranged outside the lens of the camera.

13. The four-wheel aligner according to claim 12, characterized in that: The image acquisition unit further includes a first bracket and a second bracket installed on the mounting base and spaced apart from each other. The camera is installed on the first bracket, and the fill light board is installed on the second bracket.

14. The four-wheel aligner according to claim 9, characterized in that: The mounting seat has a mounting surface, and the first position detection module and the two image acquisition units are mounted on the mounting surface.

15. The four-wheel aligner according to claim 14, characterized in that: The mounting seat includes a base, a support frame and a mounting plate. The support frame is connected between the base and the mounting plate so that the base and the mounting plate are spaced apart. The surface of the mounting plate facing away from the support frame forms the mounting surface.

16. The four-wheel aligner according to claim 15, characterized in that: The mounting seat has a magnetic surface, and the magnetic surface can be magnetically fixed to a supporting mechanism for supporting a vehicle.

17. The four-wheel aligner according to claim 16, characterized in that: The height difference between the lens of the image acquisition unit and the magnetic surface ranges from 100 mm to 160 mm; And / or, along the width direction of the vehicle, the distance between the lens of the image acquisition unit and the magnetic surface ranges from 160 mm to 220 mm.

18. The four-wheel aligner according to any one of claims 2 to 8, characterized in that: The control device further includes a first control member and a second control member, wherein the first control member is disposed in the first detection device, and the second control member is disposed in the second detection device; The first control member is connected to the first detection device to receive the first image information, the second image information and the sixth image information; The second control member is connected to the second detection device to receive the third image information, the fourth image information and the seventh image information; The first control element and the second control element are connected by wire or wirelessly; The first control component transmits the first image information, the second image information, and the sixth image information to the second control component, the second control component receives the first image information, the second image information, and the sixth image information, and parses the four-wheel alignment information of the vehicle based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information, and the seventh image information, and displays the four-wheel alignment information of the vehicle; Alternatively, the second control component transmits the third image information, the fourth image information and the seventh image information to the first control component, the first control component receives the first image information, the second image information and the sixth image information, and parses the four-wheel alignment information of the vehicle based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information and displays the four-wheel alignment information of the vehicle.

19. The four-wheel aligner according to any one of claims 2 to 8, characterized in that: The control device further includes a third control member, a fourth control member and a fifth control member, wherein the third control member is disposed in the first detection device, the fourth control member is disposed in the second detection device; and the fifth control member is an independent component; The third control member is connected to the first detection device to receive the first image information, the second image information and the sixth image information; The fourth control member is connected to the second detection device to receive the third image information, the fourth image information and the seventh image information; The third control component can transmit the first image information, the second image information, and the sixth image information directly to the fifth control component in a wireless or wired manner, or transmit them to the fifth control component through the fourth control component; the fourth control component can transmit the third image information, the fourth image information, and the seventh image information directly to the fifth control component in a wireless or wired manner, or transmit them to the fifth control component through the third control component; The fifth control component is capable of parsing the four-wheel alignment information of the vehicle based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information, and the seventh image information, and displaying the four-wheel alignment information of the vehicle; Alternatively, the third control component can transmit the first image information, the second image information, and the sixth image information directly to the fourth control component in a wireless or wired manner, or transmit them to the fourth control component through the fifth control component; the fourth control component can parse the four-wheel alignment information of the vehicle based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information, and the seventh image information, and transmit the four-wheel alignment information of the vehicle to the fifth control component for display; Alternatively, the fourth control component can transmit the third image information, the fourth image information and the seventh image information directly to the third control component or transmit them to the third control component through the fifth control component in a wireless or wired manner; the third control component can parse the four-wheel alignment information of the vehicle based on the first image information, the second image information, the third image information, the fourth image information, the sixth image information and the seventh image information, and transmit the four-wheel alignment information of the vehicle to the fifth control component for display.

Images