Vehicle detection device and four-wheel aligner

Abstract

The utility model belongs to the technical field of vehicle detection, and particularly relates to a vehicle detection device and a four-wheel aligner, the vehicle detection device comprises a mounting seat, a position detection module, an image acquisition module and a control device, the mounting seat is used for being mounted on the first side of a vehicle, and the mounting seat comprises a base and a supporting assembly mounted on the base; the position detection module is installed on the supporting assembly. The position detection module comprises a first image obtaining part, and the first image obtaining part is used for shooting a second calibration part of a vehicle detection device located on the second side of the vehicle so as to obtain image information of the second calibration part; the first side and the second side are the two sides, oppositely distributed in the width direction, of the vehicle correspondingly. The image acquisition module is mounted on the supporting assembly; the image acquisition module is used for acquiring image information of a third calibration piece mounted on the wheel to be detected; and the control device is electrically connected with the first image acquisition part and the image acquisition module, so that the detection accuracy of the vehicle detection device is improved.

Description

Technical Field

[0001] The present application belongs to the field of vehicle detection technology, and in particular relates to a vehicle detection device and a four-wheel aligner. Background Art

[0002] The significance of four-wheel alignment detection is to ensure that the relative positions of the car's tires, steering mechanism and front and rear axles are maintained in a correct balanced state, thereby improving driving safety, reducing fuel consumption, extending tire life, and improving driving comfort.

[0003] In order to detect the four-wheel parameters of a vehicle, it is usually necessary to use an intelligent four-wheel aligner to perform four-wheel alignment detection on the vehicle, so as to adjust the four-wheel parameters of the vehicle and ensure that the vehicle has good driving performance and driving stability; in some four-wheel aligners, the structural design of the vehicle detection device is unreasonable, which is not conducive to improving the detection accuracy of the vehicle detection device.

[0004] The above statements are only used to provide background information related to the present application and do not necessarily constitute prior art. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a vehicle detection device and a four-wheel aligner, which can improve the detection accuracy of the vehicle detection device.

[0006] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: a vehicle detection device, including a mounting base, a housing, a position detection module, an image acquisition module and a control device, the mounting base is used to be installed on a first side of a vehicle, the mounting base includes a base and a support assembly installed on the base; the housing is installed on the mounting base, and the housing has a first window and a second window; the position detection module is installed on the support assembly and is located in the housing; the position detection module includes a first image acquisition component and a first calibration component, the first calibration component is exposed through the first window, so that the second image acquisition component of the vehicle detection device located on the second side of the vehicle can acquire the first calibration component The first image acquisition component passes through the first window to acquire image information of a second calibration component of a vehicle detection device located on a second side of the vehicle; the first side and the second side are two sides of the vehicle that are relatively distributed along the width direction; the image acquisition module is installed on the support assembly and is located in the shell; the image acquisition module is exposed through the second window to acquire image information of a third calibration component installed on the wheel to be tested; the control device is electrically connected to the first image acquisition component and the image acquisition module to receive image information of the second calibration component and image information of the third calibration component, and process the image information of the second calibration component and image information of the third calibration component.

[0007] Optionally, a surface of the support assembly facing away from the base forms a mounting surface, and the position detection module and the image acquisition module are both mounted on the mounting surface.

[0008] Optionally, the support assembly includes a support frame and a mounting plate, the support frame is connected between the base and the mounting plate, and a surface of the mounting plate facing away from the base forms a mounting surface.

[0009] Optionally, the mounting surface is a plane.

[0010] Optionally, the image acquisition module includes two image acquisition units, which respectively acquire images of the second calibration pieces of the two wheels to be tested located on the first side; the two image acquisition units are installed on the installation surface.

[0011] Optionally, the control device is mounted on the mounting surface and located between the two image acquisition units.

[0012] Optionally, the first calibration element is a self-luminous calibration element.

[0013] Optionally, the base has a magnetic surface, which can be magnetically fixed to a supporting mechanism for supporting the vehicle.

[0014] Optionally, the vehicle detection device includes a battery for supplying power to the position detection module, the image acquisition module and the control device, and the battery is arranged in the base.

[0015] Another technical solution adopted in the present application is: a four-wheel aligner, comprising the vehicle detection device as described above.

[0016] The above one or more technical solutions in the vehicle detection device and four-wheel aligner provided in the present application have at least one of the following technical effects: during detection, the vehicle detection device located on the first side of the vehicle is arranged opposite to the vehicle detection device located on the second side of the vehicle, the first image acquisition component of the vehicle detection device located on the first side shoots the second calibration component of the vehicle detection device located on the second side to obtain image information of the second calibration component, and feeds back to the control device, the second image acquisition component of the vehicle detection device located on the second side shoots the first calibration component of the vehicle detection device located on the first side to obtain image information of the first calibration component; and, the image acquisition module of the vehicle detection device shoots the third calibration component installed on the wheel to be tested to obtain image information of the third calibration component, and feeds back to the control device, the control device receives the image information of the second calibration component and the image information of the third calibration component, and processes the image information of the second calibration component and the image of the third calibration component to facilitate the subsequent final acquisition of the four-wheel alignment information of the vehicle to be tested. The mounting base of the present application includes a base and a support assembly, and the position detection module and the image acquisition module are both installed on the support assembly. The support assembly can lift the position detection module and the image acquisition module, increase the height of the first image acquisition component, and facilitate the first image acquisition component to obtain clear image information of the second calibration component; it also increases the height of the image acquisition module, which can shorten the height difference between the image acquisition module and the wheel to be tested, so that the wheel to be tested can be located at or close to the middle position of the field of view of the image acquisition module, thereby improving the clarity of the image information of the third calibration component captured by the image acquisition module, which is beneficial to improving the detection accuracy of the vehicle detection device.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 A schematic diagram of the structure of the four-wheel aligner provided in some embodiments of the present application when detecting a vehicle.

[0020] Figure 2 for Figure 1 The structural diagram of the vehicle detection device is shown in FIG.

[0021] Figure 3 for Figure 2 An exploded schematic diagram of the vehicle detection device shown in FIG.

[0022] Figure 4 for Figure 2 The structure of the vehicle detection device shown in the figure is shown after the shell is hidden. Figure 1 .

[0023] Figure 5 for Figure 4 Schematic diagram of the structure of the image acquisition unit shown in .

[0024] Figure 6 for Figure 5 The exploded schematic diagram of the image acquisition unit is shown.

[0025] Figure 7 for Figure 2 The structure of the vehicle detection device shown in the figure is shown after the shell is hidden. Figure 2 .

[0026] Figure 8 for Figure 7 Schematic diagram of the structure of the first calibration member and the third bracket shown in .

[0027] Figure 9 for Figure 8 Schematic diagram of the exploded view of the first calibration member and the third bracket shown.

[0028] Among them, the reference numerals in the figures are:

[0029] 1000, wheel aligner; 100, vehicle detection device; 101, first vehicle detection device; 102, second vehicle detection device; 110, mounting base; 111, base; 111a, magnetic surface; 1111, magnetic member; 1112, indicator unit; 112, support assembly; 1121, support frame; 1122, mounting plate; 11221, mounting surface; 120, image acquisition module; 121, image acquisition unit; 1211, camera; 12111, lens; 1212, fill light; 12121, base plate; 1212a, through-hole; 12122, light-emitting member; 1213, first bracket; 1214, Second bracket; 130, control device; 140, position detection module; 141, first calibration part; 1411, light board; 1412, diffuser plate; 1413, target plate; 142, first image acquisition part; 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 part; 200, third calibration part; 300, wheel hub clamping device; 2000, vehicle; 2100, wheel to be measured; 3000, supporting mechanism. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0032] In the description of the embodiments of this application, the technical terms "first," "second," etc., are used solely to distinguish between different objects and should not be understood to indicate or imply relative importance, or to implicitly specify the quantity, specific order, or primary-secondary relationship of the technical features indicated. Therefore, a feature designated "first" or "second" may explicitly or implicitly include one or more of such features.

[0033] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments in any suitable manner.

[0034] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0035] In the description of the embodiments of this application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more (including two groups), and "multiple sheets" refers to two or more (including two sheets). "Several" means one or more, unless otherwise specifically defined.

[0036] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application.

[0037] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0038] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0039] The significance of four-wheel alignment detection is to ensure that the relative positions of the car's tires, steering mechanism and front and rear axles are maintained in a correct balanced state, thereby improving driving safety, reducing fuel consumption, extending tire life, and improving driving comfort.

[0040] In order to detect the four-wheel alignment parameters of a vehicle, it is usually necessary to use an intelligent four-wheel aligner to perform four-wheel alignment detection on the vehicle so as to adjust the four-wheel parameters of the vehicle and ensure that the vehicle has good driving performance and driving stability. In some four-wheel aligners, two vehicle detection devices are located on the left and right sides of the vehicle. The image acquisition modules of the two vehicle detection devices can acquire image information of the calibration parts on the four wheels. Both vehicle detection devices include calibration parts and image acquisition parts. The two vehicle detection devices are divided into a first vehicle detection device and a second vehicle detection device. The image acquisition part of the first vehicle detection device captures image information of the calibration parts of the second vehicle detection device through the bottom space of the vehicle. The image acquisition part of the second vehicle detection device captures image information of the calibration parts of the first vehicle detection device through the bottom space of the vehicle. Then, based on the image information of the calibration parts on the wheels and the image information of the calibration parts in the vehicle detection devices, the four-wheel alignment information of the vehicle is obtained. However, in some vehicle detection devices, the image acquisition parts and image acquisition modules are close to the ground or located on the lower side of the supporting mechanism for supporting the vehicle, resulting in a limited shooting field of view of the image acquisition parts and the image acquisition modules, which is not conducive to improving the detection accuracy of the vehicle detection device.

[0041] Based on this, an embodiment of the present application provides a vehicle detection device, wherein the mounting base includes a base and a support assembly installed on the base, and the image acquisition module and the first image acquisition component of the position detection module are both installed on the support assembly. The support assembly can lift the image acquisition module and the first image acquisition component, which is beneficial to improving the shooting field of view of the first image acquisition component and the image acquisition module, and improving the detection accuracy of the vehicle detection device.

[0042] An embodiment of the present application provides a vehicle detection device that can be used in a four-wheel aligner to detect the four-wheel alignment information of the vehicle, such as parameters such as the kingpin caster angle, kingpin inclination angle, front wheel camber angle and front wheel toe angle; of course, the vehicle detection device can also be used in other equipment for detecting wheels.

[0043] The following description takes a four-wheel alignment instrument as an example.

[0044] In some embodiments, see Figure 1 As shown, the four-wheel aligner 1000 includes four third calibration pieces 200 and two vehicle detection devices 100. The two vehicle detection devices 100 are respectively installed on the left and right sides of the vehicle 2000. The four third calibration pieces 200 are respectively installed on the four wheels of the vehicle 2000. The vehicle detection device 100 located on the left side of the vehicle 2000 shoots the third calibration pieces 200 on the left front wheel and the left rear wheel of the vehicle 2000 to obtain image information of the third calibration pieces 200 installed on the left front wheel and the left rear wheel of the vehicle 2000; the vehicle detection device 100 located on the left side of the vehicle 2000 shoots the third calibration pieces 200 on the left front wheel and the left rear wheel of the vehicle 2000 The vehicle detection device 100 on the right side of the vehicle 2000 captures image information of the third calibration part 200 on the right front wheel and the right rear wheel of the vehicle 2000. The two vehicle detection devices 100 can capture images of each other to obtain image information; the four-wheel aligner 1000 obtains the position information between the two vehicle detection devices 100 and the positions of the four wheels relative to the two vehicle detection devices 100 based on the obtained image information, and calculates the four-wheel alignment information of the vehicle 2000 based on these position information and the obtained image information.

[0045] In some embodiments, the third calibration member 200 can be installed on the hub of the wheel 2100 to be tested through the hub clamping device 300. The fixed stability and reliability of the third calibration member 200 are conducive to improving the detection accuracy of the four-wheel aligner 1000.

[0046] In some embodiments, the third calibration element 200 may be a target, such as a self-luminous target, a three-dimensional target, etc.

[0047] In some embodiments, the four-wheel aligner 1000 is used in conjunction with a supporting mechanism 3000 (e.g., a lift, etc.). The vehicle 2000 rests on the supporting mechanism 3000, and the supporting mechanism 3000 elevates the vehicle 2000 to facilitate positioning detection of the four-wheel aligner 1000. The vehicle detection device 100 is installed on the supporting mechanism 3000 to facilitate installation and fixation of the vehicle detection device 100.

[0048] For the convenience of explanation below, the length direction of the vehicle 2000 can be found in the attached Figure 1 The X-axis in the vehicle 2000 and the width direction can be found in the attached diagram. Figure 1 The Y-axis in the figure and the height direction of the vehicle 2000 can be found in the attached Figure 2 The Z axis in .

[0049] See Figures 2-4As shown, in some embodiments, the vehicle detection device 100 includes a mounting base 110, a housing 150, a position detection module 140, an image acquisition module 120 and a control device 130, the mounting base 110 is used to be installed on a first side of the vehicle 2000, the mounting base 110 includes a base 111 and a support assembly 112 installed on the base 111; the housing 150 is installed on the mounting base 110, and the housing 150 has a first window 1514 and a second window 1515; the position detection module 140 is installed on the support assembly 112 and is located in the housing 150; the position detection module 140 includes a first image acquisition component 142 and a first calibration component 141, the first calibration component 141 is exposed through the first window 1514, so that the second image acquisition component of the vehicle detection device 100 located on the second side of the vehicle 2000 can The image information of the first calibration piece 141 is obtained, and the first image acquisition piece 142 passes through the first window 1514 to obtain the image information of the second calibration piece of the vehicle detection device 100 located on the second side of the vehicle 2000; the first side and the second side are respectively two sides of the vehicle 2000 that are relatively distributed along the width direction; the image acquisition module 120 is installed on the support assembly 112 and is located in the shell 150; the image acquisition module 120 is exposed through the second window 1515 to obtain the image information of the third calibration piece 200 installed on the wheel 2100 to be tested; the control device 130 is electrically connected to the first image acquisition piece 142 and the image acquisition module 120 to receive the image information of the second calibration piece and the image information of the third calibration piece 200, and process the image information of the second calibration piece and the image information of the third calibration piece 200.

[0050] The mounting base 110 may refer to a component for supporting the position detection module 140 and the image acquisition module 120 . The mounting base 110 may be fixed to a side of the supporting mechanism 3000 (eg, a lift) to fix the vehicle detection device 100 .

[0051] The mounting base 110 includes a base 111 and a support assembly 112. The base 111 may refer to the bottom portion of the mounting base 110, and the support assembly 112 may refer to the portion mounted on the base 111 and used to support the position detection module 140 and the image acquisition module 120. The support assembly 112 is mounted on the base 111, which can elevate the position detection module 140 and the image acquisition module 120, thereby increasing the height of the first image acquisition component 142, so that the first image acquisition component 142 can be located above the supporting mechanism 3000. The first image acquisition component 142 can utilize the space between the vehicle 2000 and the supporting mechanism 3000 to capture image information of the second calibration component, thereby increasing the height of the image acquisition module 120, shortening the height difference between the image acquisition module 120 and the wheel to be tested 2100, so that the wheel to be tested 2100 can be located at or near the middle of the field of view of the image acquisition module 120, thereby improving the clarity of the image information of the third calibration component 200 captured by the image acquisition module 120, and facilitating improved detection accuracy of the vehicle detection device 100.

[0052] The housing 150 may be a hollow shell structure. The position detection module 140 and the image acquisition module 120 are located in the interior space of the housing 150. The housing 150 can protect the position detection module 140 and the image acquisition module 120, thereby improving the reliability of the vehicle detection device 100. The housing 150 has a first window 1514 and a second window 1515. The first window 1514 allows the first image acquisition component 142 and the first calibration component 141 to be exposed, allowing the first calibration component 141 to be photographed by the second image acquisition component and the first image acquisition component 142 to also photograph the second calibration component. The image acquisition module 120 can be exposed through the second window 1515, allowing the image acquisition module 120 to photograph the third calibration component 200. Among them, the first image acquisition component 142 exposes the outer surface of the shell 150 through the first window 1514, and can also be located inside the shell 150; the lens 12111 of the image acquisition module 120 exposes the outer surface of the shell 150 through the first window 1514, and can also be located inside the shell 150.

[0053] The first window 1514 and the second window 1515 may refer to opening structures on the housing 150 , and the opening structures may be open or closed by the light-transmitting member 152 .

[0054] The first side and the second side of the vehicle 2000 may refer to the left side and the right side of the vehicle 2000, respectively. When the vehicle 2000 is detected, the first side and the second side of the vehicle 2000 are both installed with a vehicle detection device 100, wherein the vehicle detection device 100 located on the first side may be referred to as a first vehicle detection device 101, and the vehicle detection device 100 located on the second side may be referred to as a second vehicle detection device 102. The first vehicle detection device 101 includes a first image acquisition component 142 and a first calibration component 141, and the second vehicle detection device 102 includes a second calibration component and a second image acquisition component. The acquisition component, the first image acquisition component 142 and the second calibration component are respectively located on opposite sides of the vehicle 2000 and are arranged opposite to each other. The first image acquisition component 142 shoots the second calibration component to obtain image information of the second calibration component. The first image acquisition component 142 obtains the image information of the second calibration component and feeds it back to the control device 130 of the first vehicle detection device 101. The control device 130 can receive the image information of the second calibration component and process the image information of the second calibration component to parse out the position information between the first vehicle detection device 101 and the second vehicle detection device 102. The second image acquisition component and the first calibration component 141 are located on opposite sides of the vehicle 2000 and are arranged opposite each other. The second image acquisition component captures the first calibration component 141 to obtain image information of the first calibration component 141. The second image acquisition component feeds back the image information of the first calibration component 141 to the control device 130 of the second vehicle detection device 102. The control device 130 can receive the image information of the first calibration component 141 and process the image information of the first calibration component 141 to obtain position information between the first vehicle detection device 101 and the second vehicle detection device 102. The position information between the two sets of the first vehicle detection device 101 and the second vehicle detection device 102 can be referenced with each other, thereby improving the accuracy of the position information between the first vehicle detection device 101 and the second vehicle detection device 102.

[0055] Optionally, the first vehicle detection device 101 and the second vehicle detection device 102 can be communicatively connected, and the control device 130 of the first vehicle detection device 101 and the control device 130 of the second vehicle detection device 102 can obtain the image information of the first calibration part 141 and the image information of the second calibration part and process them to obtain the position information between the first vehicle detection device 101 and the second vehicle detection device 102.

[0056] The first image acquisition component 142 may be a component capable of capturing image information of the second calibration component. The first image acquisition component 142 may be, but is not limited to, a camera 1211 or a webcam. For example, the first image acquisition component 142 may be, but is not limited to, an infrared camera or a black and white camera. The second image acquisition component may be a component capable of capturing image information of the first calibration component 141. The second image acquisition component may be, but is not limited to, a camera or a webcam. For example, the second image acquisition component may be, but is not limited to, an infrared camera or a black and white camera. The structures of the first image acquisition component 142 and the second image acquisition component may be the same or different.

[0057] The first calibration element 141 may be a component capable of being captured by the second image acquisition element to obtain image information. For example, the first calibration element 141 includes specific patterns or feature points, such as a checkerboard or dot pattern, that can be captured by the second image acquisition element and used for calculation. For example, during the detection process, the second image acquisition element captures image information of the first calibration element 141, then extracts feature information of the specific patterns or feature points in the image information and uses this feature information to calculate the position information between the first vehicle detection device 101 and the second vehicle detection device 102.

[0058] The second calibration element may be a component capable of being captured by the first image acquisition element 142 to obtain image information. For example, the second calibration element may include specific patterns or feature points, such as a checkerboard or dot pattern, that can be captured by the first image acquisition element 142 and used for calculations. For example, during the detection process, the first image acquisition element 142 captures image information of the second calibration element, then extracts feature information of the specific patterns or feature points in the image information and uses this feature information to calculate the position information between the first vehicle detection device 101 and the second vehicle detection device 102. The structures of the first calibration element 141 and the second calibration element may be the same or different.

[0059] The image acquisition module 120 may be a component capable of acquiring image information of the third calibration member 200 mounted on the wheel 2100 to be measured. The third calibration member 200 may have the same or different structures as the second calibration member. The image acquisition module 120 may be a camera 1211, a camera, or other components. The image acquisition module 120 captures image information of the third calibration member 200 and determines the four-wheel alignment information of the vehicle 2000 based on the image information of the second calibration member and the image information of the third calibration member 200.

[0060] The control device 130 may refer to a component capable of transmitting data with the first image acquisition component 142 and the image acquisition module 120; the control device 130 and the first image acquisition component 142 and the control device 130 and the image acquisition module 120 may be connected by a wiring harness or wirelessly; the control device 130 may receive image information of the second calibration component fed back by the first image acquisition component 142 and process the image information of the second calibration component; the control device 130 may also receive image information of the third calibration component 200 fed back by the image acquisition module 120 and process the image information of the third calibration component 200; wherein, "processing" may refer to transmitting the received image information to an external device, and using the external device to analyze the image information, thereby obtaining the position information between the two vehicle detection devices 100 and the four-wheel alignment information of the vehicle 2000; "processing" may also refer to parsing the received image information, thereby obtaining the position information between the two vehicle detection devices 100 and the four-wheel alignment information of the vehicle 2000. The control device 130 may be, but is not limited to, a control module (eg, a motherboard, etc.), and may also be a tablet, a mobile phone, or other computer devices.

[0061] The vehicle detection device 100 of the embodiment of the present application, during detection, the vehicle detection device 100 located on the first side of the vehicle 2000 is arranged opposite to the vehicle detection device 100 located on the second side of the vehicle 2000, the first image acquisition component 142 of the vehicle detection device 100 located on the first side photographs the second calibration component of the vehicle detection device 100 located on the second side to obtain image information of the second calibration component and feed it back to the control device 130, and the second image acquisition component of the vehicle detection device 100 located on the second side photographs the vehicle detection device 100 located on the first side. 100 to obtain image information of the first calibration piece 141; and, the image acquisition module 120 of the vehicle detection device 100 shoots the third calibration piece 200 installed on the wheel to be tested 2100 to obtain image information of the third calibration piece 200, and feeds back to the control device 130. The control device 130 receives the image information of the second calibration piece and the image information of the third calibration piece 200, and processes the image information of the second calibration piece and the image of the third calibration piece 200 to finally obtain the four-wheel alignment information of the vehicle 2000.

[0062] The mounting base 110 of the embodiment of the present application includes a base 111 and a support assembly 112. The position detection module 140 and the image acquisition module 120 are both installed on the support assembly 112. The support assembly 112 can lift the position detection module 140 and the image acquisition module 120, increase the height of the first image acquisition component 142, and facilitate the first image acquisition component 142 to capture clear image information of the second calibration component; it also increases the height of the image acquisition module 120, which can shorten the height difference between the image acquisition module 120 and the wheel 2100 to be tested, so that the wheel 2100 to be tested can be located at or close to the middle position of the field of view of the image acquisition module 120, thereby improving the clarity of the image information of the third calibration component 200 captured by the image acquisition module 120, which is conducive to improving the detection accuracy of the vehicle detection device 100.

[0063] When the vehicle detection device 100 of this embodiment is in use, the first image acquisition component 142 shoots the second calibration component to obtain image information of the second calibration component, and the second image acquisition component shoots the first calibration component 141 to obtain image information of the first calibration component 141. In this way, the position information between the two vehicle detection devices 100 can be obtained based on the image information of the second calibration component and the image information of the first calibration component 141. During the analysis process, the two image information can be used as a reference to each other, thereby improving the accuracy of determining the position information between the two vehicle detection devices 100 and improving the accuracy of four-wheel alignment detection.

[0064] In the vehicle detection device 100 of this embodiment, the image acquisition module 120 and the position detection module 140 are both installed on the support component 112. The support component 112 can connect the image acquisition module 120 and the position detection module 140 into a whole, that is, the image acquisition module 120 and the position detection module 140 are integrated, thereby improving the integration of the vehicle detection device 100 and facilitating the use of the vehicle detection device 100.

[0065] In some embodiments, the position detection module 140 and the image acquisition module 120 are both installed on the support assembly 112, and the position detection module 140 is located on the side of the image acquisition module 120 facing the vehicle 2000. Such distribution can facilitate the image acquisition module 120 and the first image acquisition component 142 to capture image information.

[0066] In some embodiments, the surface of the support assembly 112 facing away from the base 111 forms a mounting surface 11221 , and the position detection module 140 and the image acquisition module 120 are both mounted on the mounting surface 11221 .

[0067] The mounting surface 11221 may refer to the surface of the support assembly 112 away from the base 111. The position detection module 140 and the image acquisition module 120 may be mounted on the mounting surface 11221. The mounting surface 11221 may support the position detection module 140 and the image acquisition module 120. The mounting surface 11221 may be a flat surface or a stepped surface. Of course, in other embodiments, the mounting surface 11221 may also have other shapes.

[0068] By adopting the technical solution of this embodiment, the position detection module 140 and the image acquisition module 120 are installed on the same surface, which can reduce the installation error of the position detection module 140 and the image acquisition module 120, and is beneficial to improving the accuracy of the relative fixed position between the position detection module 140 and the image acquisition module 120, and is beneficial to improving the detection accuracy of the vehicle detection device 100.

[0069] In some embodiments, the support assembly 112 includes a support frame 1121 and a mounting plate 1122 . The support frame 1121 is connected between the base 111 and the mounting plate 1122 . The surface of the mounting plate 1122 facing away from the base 111 forms a mounting surface 11221 .

[0070] The mounting plate 1122 may refer to a plate in the support assembly 112 for supporting the position detection module 140 and the image acquisition module 120 . The mounting plate 1122 may be, but is not limited to, a metal plate, a plastic plate, or the like.

[0071] The support frame 1121 may refer to the portion of the support assembly 112 that is connected between the mounting plate 1122 and the base 111 ; the support frame 1121 is a frame structure that is lightweight, which helps reduce the weight of the vehicle detection device 100 to facilitate the use of the vehicle detection device 100 .

[0072] By adopting the technical solution of this embodiment, position detection module 140 and image acquisition module 120 are mounted on mounting plate 1122, making installation simple. Mounting plate 1122 has a high surface flatness. The surface of mounting plate 1122 facing away from support frame 1121 forms mounting surface 11221. The high flatness of mounting surface 11221 effectively reduces installation errors of position detection module 140 and image acquisition module 120, facilitating improved accuracy in the relative fixed position between position detection module 140 and image acquisition module 120, and thereby improving the detection accuracy of vehicle detection device 100. Furthermore, support frame 1121 and mounting plate 1122 have a simple structure and are easily manufactured.

[0073] In some embodiments, the mounting surface 11221 is planar.

[0074] By adopting the technical solution of this embodiment, the position detection module 140 and the image acquisition module 120 are installed on the same plane, which can effectively reduce the installation error of the position detection module 140 and the image acquisition module 120, and improve the accuracy of the relative fixed position between the position detection module 140 and the image acquisition module 120, which is beneficial to improving the detection accuracy of the vehicle detection device 100; in addition, the installation operation structure of the position detection module 140 and the image acquisition module 120 is simple, which facilitates the assembly of the vehicle detection device 100.

[0075] In some embodiments, the image acquisition module 120 includes two image acquisition units 121 , which respectively acquire images of the second calibration parts of the two wheels 2100 to be tested located on the first side; the two image acquisition units 121 are installed on the installation surface 11221 .

[0076] The image acquisition unit 121 may refer to a component used to capture image information of the third calibration component 200 . The image acquisition unit 121 may be, but is not limited to, a camera 1211 or a webcam.

[0077] The image acquisition module 120 includes two image acquisition units 121 , and the two image acquisition units 121 respectively acquire image information of two second calibration pieces located on the first side.

[0078] In some examples, the vehicle detection device 100 is located between the front and rear wheels on the first side, and the two image acquisition units 121 are symmetrically arranged front to back, so as to facilitate the acquisition of image information of the second calibration parts on the two wheels to be tested 2100 on the first side.

[0079] By adopting the technical solution of this embodiment, the vehicle detection device 100 can simultaneously integrate two image acquisition units 121, which is beneficial to improving the integration of the vehicle detection device 100 and facilitating the detection of the vehicle detection device 100; the vehicle detection device 100 can simultaneously obtain image information of the second calibration parts on the two wheels located on the first side, thereby improving the detection efficiency of the vehicle detection device 100; in addition, the provision of the two image acquisition units 121 enables the vehicle detection device 100 to be located in the middle position of the two wheels on the same side of the vehicle 2000. Compared with the method in which the vehicle detection device 100 is located at the front or rear side of the vehicle 2000, the site area required for the four-wheel aligner 1000 to be detected can be reduced, and the detection of the four-wheel aligner 1000 is more convenient and quick.

[0080] In some embodiments, the control device 130 is installed on the installation surface 11221 and is located between the two image acquisition units 121 to facilitate electrical connection between the control device 130 and the two image acquisition units 121 .

[0081] In some embodiments, see Figure 5 and Figure 6 As shown, the image acquisition unit 121 includes a camera 1211 and a fill light 1212 , and the fill light 1212 is used to provide fill light for the camera 1211 .

[0082] 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.

[0083] The fill light 1212 may be a lamp that can emit light, and the fill light 1212 may be, but is not limited to, an LED lamp, an incandescent lamp, etc.

[0084] By adopting the technical solution of this embodiment, the fill light 1212 can provide light to the camera 1211, so that the image information of the third calibration part 200 captured by the camera 1211 is clearer, which is conducive to improving the detection accuracy of the vehicle detection device 100.

[0085] In some embodiments, 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.

[0086] 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 .

[0087] 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.

[0088] 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 in the through hole 1212a, so that the lens 12111 of the camera 1211 can be exposed from the through hole 1212a, thereby photographing the third calibration part 200; 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.

[0089] The number of the light-emitting elements 12122 is greater than or equal to two, for example, three, four, five, or ten.

[0090] 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 .

[0091] 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.

[0092] By adopting the technical solution of this embodiment, multiple light-emitting parts 12122 are distributed along the circumference of 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. It is beneficial to improve the clarity of the image information of the third calibration part 200 captured by the camera 1211, and improve the detection accuracy of the vehicle detection device 100.

[0093] In some embodiments, the image acquisition unit 121 further includes a first bracket 1213 and a second bracket 1214 installed on the support assembly 112 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 .

[0094] 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.

[0095] By adopting the technical solution of this embodiment, the first bracket 1213 and the second bracket 1214 are arranged at intervals, so that there is a certain gap between the first bracket 1213 and the second bracket 1214, and the two do not contact each other. The camera 1211 and the fill light 1212 are fixed relatively independently, reducing the impact of factors such as the shaking of the fill light 1212 on the camera 1211, which is beneficial to improving the clarity of the image information of the third calibration part 200 captured by the camera 1211 and improving the detection accuracy of the vehicle detection device 100.

[0096] In some embodiments, see Figure 8 and Figure 9 As shown, the first calibration element is a self-luminous calibration element.

[0097] It is understandable that the self-luminous calibration piece has its own light source, thereby achieving self-luminescence of the self-luminous calibration piece.

[0098] By adopting the technical solution of this embodiment, the first calibration part 141 is a self-luminous calibration part, which can emit light by itself, so that the second image acquisition part can capture clear image information of the first calibration part 141. The second image acquisition part has a good shooting effect, which is conducive to improving the accuracy of four-wheel alignment detection.

[0099] In some embodiments, the light emitted by the first calibration element 141 is invisible light.

[0100] 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.

[0101] By adopting the technical solution of this embodiment, the light emitted by the first calibration member 141 is invisible light, which can be distinguished from ambient light, thereby reducing the influence of ambient light on the light emitted by the first calibration member 141, and improving the clarity of the image information of the first calibration member 141 captured by the second image acquisition member. The second image acquisition member has a good shooting effect, which is conducive to improving the accuracy of four-wheel alignment detection.

[0102] In some embodiments, the first calibration component 141 includes a stacked light board 1411, a diffuser plate 1412 and a target plate 1413. The diffuser plate 1412 is located between the light board 1411 and the target plate 1413. The light emitted by the light board 1411 is scattered by the diffuser plate 1412 and then emitted through the target plate 1413, which can realize the self-luminescence of the first calibration component 141. The second image acquisition component shoots the self-luminous first calibration component 141 to obtain clear image information of the first calibration component 141, which is beneficial to improving the detection accuracy of the vehicle detection device 100; wherein, the setting of the diffuser plate 1412 can diffuse the light emitted by the light board 1411, which is beneficial to improving the uniformity of the luminescence of the first calibration component 141, and is also beneficial to the second image acquisition component to obtain clearer image information of the first calibration component 141.

[0103] In some examples, the number of the first calibration member 141 may be one, and the surface of the target plate 1413 of the first calibration member 141 facing away from the light board 1411 forms a step surface. The second image acquisition member photographs the step surface to obtain three-dimensional image information. Based on the three-dimensional image information, the accurate position information of the vehicle detection device 100 can be analyzed, which is beneficial to improving the detection accuracy of the vehicle detection device 100.

[0104] In some examples, there are multiple first calibration members 141, and the multiple first calibration members 141 are arranged around the first image acquisition member 142, and the heights of the first calibration members 141 are different. In this way, the multiple first calibration members 141 can form a three-dimensional structure. The second image acquisition member shoots the multiple first calibration members 141 to obtain three-dimensional image information, thereby improving the accuracy of determining the position information between the two vehicle detection devices 100. In addition, the distribution of the multiple first calibration members 141 can set a larger distance between two adjacent first calibration members 141. The image information of the first calibration member 141 obtained by the second image acquisition member is more three-dimensional, and the position information between the two vehicle detection devices 100 can be determined more accurately, which is beneficial to improving the detection accuracy of the vehicle detection device 100.

[0105] In some embodiments, the position detection module 140 also includes a third bracket 143 and a fourth bracket 144 fixed to the mounting base 110, the first calibration component 141 is installed on the third bracket 143, and the first image acquisition component 142 is installed on the fourth bracket 144, thereby achieving the fixation of the first calibration component 141 and the first image acquisition component 142.

[0106] In some examples, the third bracket 143 is located between the light board 1411 and the diffuser plate 1412. The light board 1411, the diffuser plate 1412, and the target plate 1413 are fixed to the third bracket 143 together, eliminating the need to separately fix the light board 1411, the diffuser plate 1412, and the target plate 1413. This simplifies the fixation of the first calibration member 141. The light board 1411, the diffuser plate 1412, and the target plate 1413 can be fixed to the third bracket 143 by fasteners (e.g., screws, etc.). The light board 1411 can be, but is not limited to, an LED board.

[0107] In some embodiments, both the position detection module 140 and the image acquisition module 120 are mounted on the support assembly 112, with the position detection module 140 located on the side of the image acquisition module 120 facing the vehicle 2000. This arrangement facilitates the capture of image information by the image acquisition unit 121 and the first image acquisition member 142. For example, the third bracket 143, the fourth bracket 144, the first bracket 1213, and the second bracket 1214 can be secured to the mounting surface 11221 using fasteners (e.g., screws), snap connections, adhesive bonding, or the like.

[0108] In some embodiments, see Figures 2-4 As shown, the vehicle detection device 100 further includes a housing 150 mounted on the base 111 . The housing 150 covers the position detection module 140 and the image acquisition module 120 to protect the position detection module 140 and the image acquisition module 120 .

[0109] In some embodiments, the housing 150 includes a shell 151, and the shell 151 is provided with a first window 1514 and a second window 1515. The first window 1514 is used to expose the first calibration part 141, thereby facilitating the second image acquisition part to shoot; the second window 1515 is used to expose the lens 12111 of the image acquisition unit 121, thereby facilitating the image acquisition unit 121 to shoot the third calibration part 200.

[0110] In some embodiments, the housing 150 further includes a light-transmitting member 152, which is installed within the first window 1514 to seal the first window 1514. The light-transmitting member 152 allows light emitted by the first calibration member 141 to pass through, thereby facilitating image capture by the second image capture member. The light emitted by the first calibration member 141 can be visible light or invisible light, such as infrared light. The light emitted by the first calibration member 141 is invisible light, which can reduce the impact of external ambient light of the vehicle detection device 100 on the image information captured by the second image capture member, thereby improving the detection accuracy of the vehicle detection device 100. The light-transmitting member 152 can allow light emitted by the first calibration member 141 to pass through but cannot allow at least some visible light to pass through, thereby reducing the impact of external ambient light of the vehicle detection device 100 on the image information captured by the second image capture member, thereby improving the detection accuracy of the vehicle detection device 100.

[0111] In some embodiments, the housing 151 is formed with a handle 1516 for a person to hold, thereby facilitating the use of the vehicle detection device 100 .

[0112] In some embodiments, the housing 151 may include multiple parts, which may be formed separately and then assembled together, or may be formed as one piece.

[0113] In some examples, the shell 151 includes a first shell 1511 and a second shell 1512, which are spliced and enclosed to form an installation space for installing the position detection module 140 and the image acquisition module 120; 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 vehicle detection device 100.

[0114] In some embodiments, see Figure 7 As shown, the base 111 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 .

[0115] The magnetic surface 111 a may refer to a surface of the base 111 used for magnetic attraction and fixation with the supporting mechanism 3000 .

[0116] In some examples, the base 111 has a magnetic member 1111 exposed on the base 111 . 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 .

[0117] In some examples, the base 111 has a magnetic component 1111, which is installed inside the base 111. The magnetic component 1111 can be magnetically adsorbed to the supporting mechanism 3000 through the base 111, and the surface where the base 111 contacts the supporting mechanism 3000 is the magnetic surface 111a.

[0118] 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.

[0119] 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 base 111 and the supporting mechanism 3000, which can improve the connection reliability between the base 111 and the supporting mechanism 3000.

[0120] By adopting the technical solution of this embodiment, the base 111 can be magnetically fixed to the supporting mechanism 3000 through the magnetic surface 111a. The fixing stability of the base 111 is good, the shooting stability of the image acquisition unit 121 and the first image acquisition component 142 is good, the clarity of the image information obtained from the first calibration component 141 is better, and the clarity of the image information obtained from the second calibration component is better, which is beneficial to improving the detection accuracy of the vehicle 2000; in addition, the magnetic connection method is adopted to facilitate the installation and position adjustment of the vehicle detection device 100.

[0121] In some embodiments, the vehicle detection device 100 includes a battery for powering the position detection module 140 , the image acquisition module 120 , and the control device 130 , and the battery is disposed in the base 111 .

[0122] By adopting the technical solution of this embodiment, the battery can power the position detection module 140, the image acquisition module 120 and the control device 130 without the need for an external power supply, and the detection operation of the vehicle detection device 100 is more convenient.

[0123] In some embodiments, the base 111 is in the shape of an elongated strip, and one end face of the base 111 forms a magnetic surface 111a, the support assembly 112 is installed at the other end of the base 111, and the image acquisition module 120 and the position detection module 140 are installed on the support assembly 112; during detection, the magnetic surface 111a of the base 111 is adsorbed on the side of the supporting mechanism 3000 and is perpendicular to the side, and the image acquisition module 120 is installed on the support assembly 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 module 120 and the vehicle 2000 in the width direction of the vehicle 2000, so as to facilitate the image acquisition module 120 to capture the image information of the third calibration part 200. This mounting base 110 has a simple structure and light weight, which can facilitate the use of the vehicle detection device 100.

[0124] In some embodiments, see Figure 4 As shown, an indicator unit 1112 is provided at the end of the base 111 facing away from the magnetic surface 111a. The indicator unit 1112 is used to display the working status of the vehicle detection device 100 to facilitate the use of the vehicle detection device 100. The indicator unit 1112 can be but is not limited to an indicator light or a display panel.

[0125] In some embodiments, the four-wheel aligner 1000 includes the vehicle detection device 100 as described in the above embodiments.

[0126] The four-wheel aligner 1000 of the embodiment of the present application adopts the above-mentioned vehicle detection device 100 to improve the detection accuracy of the vehicle detection device 100 and the detection accuracy of the four-wheel aligner 1000.

[0127] 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.

[0128] 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 vehicle detection device, characterized in that: include: A mounting base, configured to be mounted on a first side of a vehicle, the mounting base comprising a base and a support assembly mounted on the base; a housing mounted on the mounting seat, the housing having a first window and a second window; a position detection module mounted on the support assembly and located within the housing; the position detection module includes a first image acquisition member and a first calibration member, the first calibration member being exposed through the first window so that a second image acquisition member of a vehicle detection device located on a second side of the vehicle can acquire image information of the first calibration member, and the first image acquisition member being passed through the first window to acquire image information of the second calibration member of the vehicle detection device located on the second side of the vehicle; the first side and the second side being two opposite sides of the vehicle respectively distributed in a width direction; an image acquisition module, mounted on the support assembly and located within the housing; the image acquisition module is exposed through the second window to acquire image information of a third calibration member mounted on the wheel to be tested; The control device is electrically connected to the first image acquisition component and the image acquisition module to receive the image information of the second calibration component and the image information of the third calibration component, and processes the image information of the second calibration component and the image information of the third calibration component.

2. The vehicle detection device according to claim 1, characterized in that: The surface of the support assembly facing away from the base forms a mounting surface, and the position detection module and the image acquisition module are both mounted on the mounting surface.

3. The vehicle detection device according to claim 2, characterized in that: The support assembly includes a support frame and a mounting plate. The support frame is connected between the base and the mounting plate. The surface of the mounting plate facing away from the base forms the mounting surface.

4. The vehicle detection device according to claim 2, characterized in that: The mounting surface is a plane.

5. The vehicle detection device according to claim 2, characterized in that: The image acquisition module includes two image acquisition units, which respectively acquire images of the second calibration parts of the two wheels to be tested located on the first side; the two image acquisition units are installed on the installation surface.

6. The vehicle detection device according to claim 5, characterized in that: The control device is installed on the installation surface and is located between the two image acquisition units.

7. The vehicle detection device according to any one of claims 1 to 6, characterized in that: The first calibration element is a self-luminous calibration element.

8. The vehicle detection device according to any one of claims 1 to 6, characterized in that: The base has a magnetic surface, and the magnetic surface can be magnetically fixed to a supporting mechanism for supporting a vehicle.

9. The vehicle detection device according to any one of claims 1 to 6, characterized in that: The vehicle detection device includes a battery for supplying power to the position detection module, the image acquisition module and the control device, and the battery is arranged in the base.

10. A four-wheel aligner, characterized in that: The vehicle detection device comprises the vehicle detection device according to any one of claims 1 to 9.

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