Calibration system and four-wheel aligner

Abstract

The utility model is suitable for the technical field of vehicle detection, and provides a calibration system and a four-wheel aligner, the calibration system comprises a first device and a second device which are used in pairs, the first device and the second device are respectively arranged on one side of a to-be-detected vehicle provided with a to-be-detected wheel, the first device comprises a first camera, and the second device comprises a second camera. The second equipment comprises a calibration part; the first camera of the first device is used for acquiring first image information of the calibration part of the second device located on the opposite side; the control device is connected with the first camera and used for receiving the first image information from the first camera and processing the first image information. According to the calibration system, the first image information of the second equipment on the opposite side is obtained through the first camera, the first image information reflects the distance relation and the relative position relation between the first equipment and the second equipment, and when four-wheel positioning detection is carried out through a four-wheel positioning instrument comprising the calibration system, the detection accuracy can be guaranteed.

Description

Technical Field

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

[0002] For vehicles, four-wheel alignment has a significant impact on the safety of the entire vehicle. If the wheel parameters are abnormal, it will directly affect the vehicle's driving safety and daily use.

[0003] A vehicle's four-wheel alignment test uses the calibration and detection device in the wheel aligner to obtain parameter information for each wheel of the vehicle. Specifically, a reference piece for detection is fixedly installed on each wheel, and the calibration and detection device is installed in a fixed position outside the vehicle to be tested. The calibration and detection device detects the reference piece to obtain parameter information for each wheel. Before the calibration test, it is necessary to ensure that the calibration and detection devices on both sides are installed in the predetermined position to ensure that they can accurately perform the four-wheel alignment test on the vehicle.

[0004] In the existing four-wheel aligner, the calibration detection devices on both sides are installed separately, and there may be deviations in the positions of the two, resulting in deviations in the detection of the four-wheel alignment of the vehicle. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a calibration system, which aims to solve the technical problem that existing four-wheel aligners have deviations in detecting the four-wheel alignment of a vehicle.

[0006] The embodiment of the present application is implemented as follows: a calibration system includes a first device and a second device for use in pair, wherein the first device and the second device are respectively arranged on a side of a vehicle to be inspected where a wheel to be inspected is arranged;

[0007] The first device includes a first camera, and the second device includes a calibration element:

[0008] The first camera of the first device is used to obtain first image information of the first camera and the calibration piece of the second device located on the opposite side;

[0009] A control device is connected to the first camera and is used to receive the first image information from the first camera and process the first image information.

[0010] In one embodiment, the second device further includes the first camera, and the first device further includes the calibration piece, and the first camera of the second device is used to obtain the first image information of the calibration piece of the first device; the control device includes a first control module provided in the first device, and a second control module provided in the second device, the first control module is connected to the first camera of the first device, and the second control module is connected to the first camera of the second device;

[0011] Both the first control module and the second control module are communicatively connected to a control terminal, and the control terminal is used to receive the first image information from the first control module and the first image information from the second control module, and process the two first image information; or, both the first control module and the second control module are communicatively connected to a control terminal, and the first control module is used to receive the first image information obtained by the control device from the second control module, and process the two first image information; or, the first control module is used to receive the first image information from the second control module, and process the two first image information.

[0012] In one embodiment, there are multiple calibration pieces, and the projections of the multiple calibration pieces along the width direction of the vehicle to be inspected do not overlap; along the width direction of the vehicle to be inspected, the distances between at least two of the calibration pieces and the vehicle to be inspected are different; and each calibration piece is provided with at least one calibration point.

[0013] In one embodiment, the number of the calibration pieces is four, the first calibration piece and the third calibration piece are arranged at intervals along the length direction of the vehicle to be inspected; the second calibration piece is located below the first calibration piece and on the side of the first calibration piece close to the vehicle to be inspected, and the fourth calibration piece is located above the first calibration piece and on the side of the first calibration piece away from the vehicle to be inspected.

[0014] In one embodiment, each of the calibration components includes a stacked light board and a target board, wherein the target board is located on a side of the light board facing the vehicle to be inspected; at least one through hole is provided on the target board, and the through hole forms the calibration point.

[0015] In one embodiment, the calibration part includes a stacked light board and a target board, wherein the target board is located on the side of the light board facing the vehicle to be inspected; a plurality of step surfaces are provided on the side of the target board facing away from the light board, and the distances from each step surface to the light board are different; each step surface is provided with at least one through hole, and the through hole forms a calibration point.

[0016] In one embodiment, the calibration component further includes a diffuser plate disposed between the light board and the target board.

[0017] In one embodiment, the light emitted by the light panel is invisible light.

[0018] In one embodiment, the first device and the second device both include magnetic seats, and the first device and the second device are fixed to a carrying device for carrying the vehicle to be inspected through the magnetic seats, and are respectively located on a side of the vehicle to be inspected where the wheel to be inspected is provided.

[0019] Another object of an embodiment of the present application is to provide a four-wheel aligner, comprising a calibration system as described in the above embodiments; the first device and the second device both include two second cameras; the two second cameras of the first device are used to obtain second image information of auxiliary tools on the front wheels and rear wheels on one side of the vehicle to be inspected, and the two second cameras of the second device are used to obtain second image information of auxiliary tools on the front wheels and rear wheels on the other side of the vehicle to be inspected; the control device is connected to each second camera to receive each second image information and process the second image information.

[0020] The calibration system and four-wheel aligner provided in the embodiments of the present application have the following beneficial effects: a first device and a second device are used in pairs, the first device and the second device are respectively arranged on the side of the vehicle to be inspected where the wheel to be inspected is provided, the first device includes a first camera, and the second device includes a calibration part; the first camera of the first device is used to obtain first image information of the calibration part of the second device on the opposite side; the control device is connected to the first camera, and is used to receive the first image information from the first camera and process the first image information. The calibration system of the present application obtains the first image information of the second device on the opposite side through its first camera, and the distance relationship and relative position relationship between the first device and the second device can be detected through the first image information. When the four-wheel alignment test is performed through the four-wheel aligner including the calibration system, the accuracy of the test can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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. 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 creative work.

[0022] Figure 1 is a schematic diagram of the overall structure of the first device in the calibration system provided in an embodiment of the present application;

[0023] Figure 2is a three-dimensional exploded schematic diagram of a first device in a calibration system provided in an embodiment of the present application;

[0024] Figure 3 It is a structural diagram of the calibration component and the detection component in the calibration system provided in an embodiment of the present application;

[0025] Figure 4 1 is a schematic diagram of a three-dimensional exploded view of a calibration component and a detection component in a calibration system provided in an embodiment of the present application;

[0026] Figure 5 is a schematic structural diagram of a calibration component in a calibration system provided in an embodiment of the present application;

[0027] Figure 6 This is a structural diagram of a calibration component in the calibration system provided in an embodiment of the present application;

[0028] Figure 7 is another structural schematic diagram of a calibration component in the calibration system provided in an embodiment of the present application;

[0029] Figure 8 is a three-dimensional exploded schematic diagram of a detection component in a calibration system provided in an embodiment of the present application;

[0030] Figure 9 This is a schematic diagram of the use of the four-wheel aligner provided in an embodiment of the present application.

[0031] The meanings of the marks in the figure are:

[0032] 100 - first device, 200 - second device, 91 - vehicle to be tested, 92 - wheel to be tested, 93 - load-bearing device;

[0033] 1-housing;

[0034] 2-Magnetic base;

[0035] 3-calibration assembly, 30-base plate, 31-first camera, 32-calibration component, 321-light board, 322-target board, 3220-through hole, 3221-step surface, 323-diffuser plate, 325-fixing plate, 3250-opening, 33-adapter circuit board;

[0036] 4-detection component, 41-first mounting plate, 42-second mounting plate, 43-second camera, 44-fill light;

[0037] 51-first control module;

[0038] 6-Battery;

[0039] 7-Indicator light. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail 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.

[0041] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", 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 description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this patent. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0042] In order to illustrate the technical solution described in this application, the following is a detailed description with reference to specific drawings and embodiments.

[0043] See also Figure 9 As shown, an embodiment of the present application provides a four-wheel aligner, comprising a calibration system and an auxiliary tool. The calibration system is disposed outside a vehicle 91 to be inspected, and the auxiliary tool is fixed to a wheel 92 to be tested on the vehicle 91 to be inspected. The four-wheel aligner directly or indirectly obtains image information related to the wheel 92 to be tested by detecting or probing the auxiliary tool, thereby performing a four-wheel alignment test on the vehicle 91 to be inspected.

[0044] See also Figure 1 and Figure 2 、 Figure 9 As shown, the calibration system includes a first device 100 and a second device 200. The first device 100 and the second device 200 are used to be installed at a fixed position outside the vehicle to be inspected 91 and are located on opposite sides of the vehicle to be inspected 91, which refers to the left and right sides.

[0045] For example, see Figure 9 As shown, based on the direction of the driving seat, the first device 100 is arranged on the right side of the vehicle to be inspected 91, and is used to detect the right front wheel and the right rear wheel of the vehicle to be inspected 91. The second device 200 is arranged on the left side of the vehicle to be inspected 91, and is used to detect the left front wheel and the left rear wheel of the vehicle to be inspected 91.

[0046] In the embodiment of the present application, the first device 100 includes a first camera 31, and the second device 200 includes a calibration element 32 (please refer to Figure 2The calibration system further comprises a control device connected to the first camera 31 of the first device 100, for receiving the first image information from the first camera 31 and processing the first image information.

[0047] The first camera 31 is a non-depth camera. The first image information it acquires is planar image information and does not include depth information. The control device receives the planar image information, processes multiple feature points in the planar image information, and then converts it into the relative position relationship between the first device 100 and the second device 200.

[0048] That is, the first device 100 can use its first camera 31 to capture first image information between itself and the second device 200 on the opposite side. This first image information can be used to detect the relative positional relationship between the first device 100 and the second device 200. This allows personnel to determine whether the first device 100 and the second device 200 are simultaneously installed in the predetermined positions. Based on this, when the four-wheel aligner performs four-wheel alignment testing on the wheels 92 to be tested on both sides, the accuracy of the testing can be guaranteed.

[0049] In the technical solution of this embodiment, a first device 100 and a second device 200 are used in pairs. The first device 100 and the second device 200 are respectively arranged on one side of the vehicle 91 to be inspected where the wheel 92 to be inspected is provided. The first device 100 includes a first camera 31, and the second device 200 includes a calibration part 32. The first camera 31 of the first device 100 is used to obtain first image information of the calibration part 32 of the second device 200 located on the opposite side. The control device is connected to the first camera 31 and is used to receive the first image information from the first camera 31 and process the first image information. The calibration system of the present application obtains the first image information of the second device 200 on the opposite side through its first camera 31. The distance relationship and relative position relationship between the first device 100 and the second device 200 can be detected through the first image information. When a four-wheel alignment test is performed using a four-wheel aligner including the calibration system, the accuracy of the test can be guaranteed.

[0050] In an alternative embodiment, if Figure 2 and Figure 3As shown, the first device 100 also includes a calibration component 32, and the second device 200 also includes a first camera 31. In this way, the first camera 31 of the second device 200 is used to obtain first image information of itself and the calibration component 32 in the first device 100. The control module is connected to the first camera 31 of the second device 200 to obtain the first image information provided by the first camera 31. In other words, mutual calibration of the first device 100 and the second device 200 is achieved. Through the mutual calibration of the two first image information, it is possible to further ensure that the first device 100 and the second device 200 are installed at the predetermined position at the same time, and further improve the detection accuracy of the two.

[0051] The control device may be provided in the first device 100 , or in the second device 200 , or in both the second device 200 and the first device 100 .

[0052] In an optional embodiment, the control device includes a first control module 51 provided in the first device 100 and a second control module provided in the second device 200. The first control module 51 is connected to the first camera 31 of the first device 100, and the second control module is connected to the first camera 31 of the second device 200. This facilitates the first control module 51 and the second control module to be connected to different first cameras 31 respectively.

[0053] In this way, the first device 100 and the second device 200 can be as similar in structure as possible, that is, they can be completely identical devices (here, the communication method between the first control module 51 and the second control module is not considered). The first device 100 and the second device 200 can be batch-processed and manufactured according to unified requirements and processes. The following description of this application uses this as an example. Figure 1 and Figure 2 FIG. 1 shows a first device 100 including a first camera 31 and a calibration element 32. For the first device 100, at least the first camera 31 and the calibration element 32 constitute a calibration component 3, see FIG. Figure 2 and Figure 3 shown.

[0054] In one embodiment, the first control module 51 and the second control module are configured to be communicatively connected to a control terminal. The control terminal is used to receive the first image information from the first control module 51 and the first image information from the second control module, and process the two first image information. The control terminal can be a smart device such as a mobile phone or a smart tablet.

[0055] Alternatively, both the first control module 51 and the second control module are communicatively connected to the control terminal, with the first control module 51 configured to receive the first image information obtained by the control terminal from the second control module and process the first image information. In other words, the control terminal functions as a relay for the first image information between the first control module 51 and the second control module. It is understood that the control terminal may also receive and display processing results from the first control module 51.

[0056] Alternatively, the first control module 51 is used to receive the first image information from the second control module and process the two first image information. In this case, the first control module 51 serves as the main control terminal.

[0057] See also Figure 1 and Figure 2 As shown, in one embodiment, the first device 100 includes a magnetic base 2. The first device 100 is installed at a fixed position outside the vehicle 91 to be inspected via the magnetic base 2. For example, the first device 100 is adsorbed onto a supporting device 93 for supporting the vehicle 91 to be inspected via the magnetic base 2. The supporting device 93 is specifically a lift.

[0058] The magnetic base 2 may include a permanent magnet or an electromagnet.

[0059] like Figure 2 As shown, in one embodiment, the first device 100 and the second device 200 further include a battery 6 for providing the power required for the operation of the first camera 31 (and the electromagnet), etc. The first device 100 and the second device 200 further include an indicator light 7, which is connected to the control device and is used to display the operating status of the first camera 31, etc.

[0060] like Figure 2 As shown, in one embodiment, the first device 100 and the second device 200 further include a housing 1 for housing the first camera 31, calibration element 32, control device, battery 6, etc. A magnetic base 2 is fixedly connected to one end of the housing 1. The housing 1 can be of any design, but is typically designed to accommodate the relative positions of the first camera 31, calibration element 32, battery 6, control device, etc. within the housing, while also being easily accessible to personnel.

[0061] To ensure the accuracy of relative position calibration between the first device 100 and the second device 200, the calibration member 32 is provided with multiple calibration points, and the multiple calibration points are arranged at different positions in space so that the distances from the multiple calibration points to the first camera 31 are different.

[0062] For example, in a case where both the first control module 51 and the second control module are communicatively connected to a control terminal, and the control terminal is used to receive first image information from the first control module 51 and first image information from the second control module, and process the two first image information, multiple first image information are transmitted to the control terminal, which processes each first image information and converts it into multiple coordinate points of the first device 100 in the coordinate system of the second device 200, and multiple coordinate points of the second device 200 in the coordinate system of the first device 100. In this way, mutual calibration of the three-dimensional spatial coordinates between the first device 100 and the second device 200 can be achieved.

[0063] See also Figure 4 、 Figure 5 and Figure 6 As shown, in one embodiment, there are multiple calibration members 32, and the projections of the multiple calibration members 32 along the width direction of the vehicle 91 to be inspected do not completely overlap. At least two calibration members 32 are positioned at different distances from the vehicle 91 to be inspected along the width direction of the vehicle 91 to be inspected. Each calibration member 32 is provided with at least one calibration point. This creates multiple calibration points at different distances from the vehicle 91 to be inspected along its width direction. In other words, at least two calibration members 32 are staggered along the length direction of the vehicle 91 to be inspected, resulting in different distances from the first camera 31.

[0064] Optionally, in one embodiment, there are multiple calibration members 32, with at least two calibration members 32 spaced apart in the length direction of the vehicle 91 to be inspected, at least two calibration members 32 spaced apart in the width direction of the vehicle 91 to be inspected, and at least two calibration members 32 spaced apart in the height direction. In this way, multiple calibration points have coordinates on each coordinate axis in the three-dimensional coordinate system, and the control module can calibrate the positions of the calibration members 32 more accurately.

[0065] More specifically, see Figure 4 and Figure 5 As shown, in an optional embodiment, the number of calibration pieces 32 is four, and the first calibration piece 32 and the third calibration piece 32 are arranged at intervals along the length direction of the vehicle to be inspected 91; the second calibration piece 32 is located on the lower side of the first calibration piece 32 and on the side of the first calibration piece 32 close to the vehicle to be inspected 91, and the fourth calibration piece 32 is located on the upper side of the first calibration piece 32 and on the side of the first calibration piece 32 away from the vehicle to be inspected 91.

[0066] The first camera 31 is positioned near the calibration elements 32 and can be fixedly connected to any of the calibration elements 32. In one embodiment, the calibration assembly 3 further includes a base plate 30. When the magnetic base 2 is attached to the support device 93, the base plate 30 is substantially parallel to the ground. The first camera 31 and each calibration element 32 are fixedly mounted on the base plate 30.

[0067] See also Figure 3 and Figure 4 As shown, in one embodiment, the calibration component 3 also includes a adapter circuit board 33, which is arranged on the base plate 30 and connected to the first camera 31 and the second control module, for powering the first camera 31 and transmitting the signal of the first camera 31 to the first control module 51.

[0068] In one embodiment, the calibration element 32 is a self-luminous calibration element 32 , that is, it forms a plurality of light spots by emitting light, and the light spots serve as calibration points.

[0069] Specifically, if Figure 5 and Figure 6 As shown, in one embodiment, each calibration member 32 includes a stacked light board 321 and a target board 322, and the target board 322 is fixed to the side of the light board 321 facing the vehicle to be inspected 91; at least one through hole 3220 is provided on the target board 322, and the light emitted by the light board 321 can pass through the through hole 3220, and the through hole 3220 forms a calibration point.

[0070] In addition, if Figure 6 As shown, each calibration member 32 further includes a fixing plate 325, the lower end of which is connected to the base plate 30, and the upper end of which is connected to the aforementioned light board 321 and target board 322, so that the light board 321 and target board 322 are maintained at a distance above the base plate 30 and facing the vehicle to be inspected 91. The stacking order of the fixing plate 325, the light board 321, and the target board 322 is not limited, as long as the light board 321 and the target board 322 can be fixed together.

[0071] In an optional embodiment, each calibration piece 32 further includes a diffuser plate 323, which is arranged between the light board 321 and the target board 322, and is used to make the light board 321 form a uniform surface light source and evenly illuminate the target board 322, so that the brightness of each area within each through hole 3220 and different through holes 3220 is uniform and consistent, which is beneficial to improving the detection accuracy of the calibration piece 32 by the first camera 31.

[0072] In a specific embodiment, please refer to Figure 6As shown, the fixing plate 325 is provided with an opening 3250. The light panel 321 is disposed on the side of the fixing plate 325 facing away from the vehicle 91 to be inspected. The edge of the light panel 321 is fixedly connected to the periphery of the opening 3250 of the fixing plate 325, so that light emitted by the light panel 321 can pass through the opening 3250. The light diffuser 323 and the target panel 322 are sequentially disposed on the side of the fixing plate 325 closer to the vehicle 91 to be inspected. Of course, if other circumstances allow, the light panel 321, the light diffuser 323, the target panel 322, and the fixing plate 325 may be fixedly connected in other orders and manners.

[0073] Alternatively, in one embodiment, the number of the calibration member 32 is one, including a stacked light board 321 and a target board 322, wherein the target board 322 is located on a side of the light board 321 close to the vehicle 91 to be inspected; Figure 7 As shown, some of the target plate 322 facing away from the light board 321 are provided with multiple step surfaces 3221, and the distances between each step surface 3221 and the light board 321 are different; each step surface 3221 is provided with at least one through hole 3220, and the through hole 3220 forms a calibration point.

[0074] By providing a plurality of stepped surfaces 3221 , the distances between the calibration points on different stepped surfaces 3221 and the first camera 31 opposite to them are different.

[0075] Optionally, the step surfaces 3221 are arranged parallel to each other, and the step surfaces 3221 are perpendicular to the bottom plate 30. In this case, the distances from different calibration points to the first camera 31 are different.

[0076] At this time, a light diffusion plate 323 may also be provided between the light plate 321 and the target plate 322 .

[0077] In one optional embodiment, the light emitted by the light board 321 is invisible light, and the first camera 31 forms an image based on this invisible light. For example, it can be infrared light, and the first camera 31 is configured to receive and form an image based on the infrared light. This invisible light can be distinguished from ambient light, preventing ambient light from affecting the image formed by the first camera 31.

[0078] Next, see Figure 3 and Figure 4 As shown, in one embodiment, the first device 100 and the second device 200 each include two detection components 4, which are respectively arranged on the left and right sides of the calibration component 3, and are used to face a front wheel and a rear wheel respectively; Figure 8As shown, each detection component 4 includes a second camera 43; the first device 100 is arranged between the front wheel and the rear wheel on the right side of the vehicle to be inspected 91, and the two second cameras 43 of the first device 100 are respectively tilted toward the front wheel and the rear wheel on that side, so as to obtain second image information of the auxiliary tools on the front wheel and the rear wheel on that side of the vehicle to be inspected 91; the second device 200 is arranged between the front wheel and the rear wheel on the left side of the vehicle to be inspected 91, and the two second cameras 43 of the second device 200 are respectively tilted toward the front wheel and the rear wheel on that side, so as to obtain second image information of the auxiliary tools on the front wheel and the rear wheel on that side of the vehicle to be inspected 91.

[0079] In the control device, the first control module 51 is connected to each second camera 43 in the first device 100, and the second control module is connected to each second camera 43 in the second device 200 to receive the second image information of each second camera 43 and process the second image information. Since the four-wheel aligner determines the relative position relationship between the two through the first device 100 and the second device 200 distributed on both sides of the vehicle to be inspected 91, and the first device 100 and the second device 200 on both sides use the second cameras 43 to shoot the second image information of the auxiliary tool fixed on the wheel to be tested 92 of the vehicle to be inspected 91, it is convenient to realize the four-wheel alignment detection of the vehicle to be inspected 91 according to the second image information and the relative position relationship between the first device 100 and the second device 200, and then obtain the four-wheel parameters of the vehicle to be inspected 91.

[0080] See also Figure 8 As shown, in one embodiment, the detection component 4 also includes a first mounting plate 41, the lower end of the first mounting plate 41 is fixedly connected to the base plate 30 of the calibration component 3, and the second camera 43 is arranged on the first mounting plate 41 so that the relative position between the second camera 43 and the base plate 30 remains fixed.

[0081] In an optional embodiment, the detection assembly 4 further includes a fill light 44 for providing supplemental light to the second camera 43 to improve the clarity and accuracy of the image detection of the wheel 92 to be detected. The fill light 44 is annular in shape and is positioned around the second camera 43. The detection assembly 4 may include a second mounting plate 42, the lower end of which is fixedly connected to the first mounting plate 41 and / or the base plate 30. The upper end of the second mounting plate 42 is annular in shape, corresponding to the shape of the fill light 44, and the fill light 44 is mounted on the upper end of the second mounting plate 42.

[0082] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A calibration system, characterized in that: It comprises a first device and a second device for use in pair, wherein the first device and the second device are respectively arranged on a side of a vehicle to be inspected where a wheel to be inspected is arranged; The first device includes a first camera, and the second device includes a calibration element: The first camera of the first device is used to obtain first image information of the first camera and the calibration piece of the second device located on the opposite side; A control device is connected to the first camera and is used to receive the first image information from the first camera and process the first image information.

2. The calibration system according to claim 1, characterized in that: The second device further includes the first camera, and the first device further includes the calibration piece, and the first camera of the second device is used to obtain the first image information of the calibration piece of the first device; the control device includes a first control module provided in the first device, and a second control module provided in the second device, the first control module is connected to the first camera of the first device, and the second control module is connected to the first camera of the second device; Both the first control module and the second control module are communicatively connected to a control terminal, and the control terminal is used to receive the first image information from the first control module and the first image information from the second control module, and process the two first image information; or, both the first control module and the second control module are communicatively connected to a control terminal, and the first control module is used to receive the first image information obtained by the control device from the second control module, and process the two first image information; or, the first control module is used to receive the first image information from the second control module, and process the two first image information.

3. The calibration system according to claim 1, wherein: There are multiple calibration pieces, and the projections of the multiple calibration pieces along the width direction of the vehicle to be inspected do not overlap; along the width direction of the vehicle to be inspected, the distances between at least two of the calibration pieces and the vehicle to be inspected are different; each calibration piece is provided with at least one calibration point.

4. The calibration system according to claim 3, characterized in that: There are four calibration pieces, the first and third calibration pieces are spaced apart along the length direction of the vehicle to be inspected; the second calibration piece is located below the first calibration piece and on the side of the first calibration piece close to the vehicle to be inspected, and the fourth calibration piece is located above the first calibration piece and on the side of the first calibration piece away from the vehicle to be inspected.

5. The calibration system according to claim 3, characterized in that: Each of the calibration components includes a stacked light board and a target board, wherein the target board is located on a side of the light board facing the vehicle to be inspected; at least one through hole is provided on the target board, and the through hole forms the calibration point.

6. The calibration system according to claim 1, characterized in that: The calibration part includes a stacked light board and a target board, wherein the target board is located on the side of the light board facing the vehicle to be inspected; a plurality of step surfaces are provided on the side of the target board facing away from the light board, and the distances from each step surface to the light board are different; each step surface is provided with at least one through hole, and the through hole forms a calibration point.

7. The calibration system according to claim 5 or 6, characterized in that: The calibration component further includes a light diffusion plate arranged between the light board and the target board.

8. The calibration system according to claim 5 or 6, characterized in that: The light emitted by the light panel is invisible light.

9. The calibration system according to any one of claims 1 to 6, characterized in that: The first device and the second device both include a magnetic seat, and the first device and the second device are fixed on a carrying device for carrying the vehicle to be inspected through the magnetic seat, and are respectively located on a side of the vehicle to be inspected where the wheel to be inspected is provided.

10. A four-wheel aligner, characterized in that: It includes a calibration system as described in any one of claims 1 to 9; the first device and the second device each include two second cameras; the two second cameras of the first device are used to obtain second image information of auxiliary tools on the front wheels and rear wheels on one side of the vehicle to be inspected, and the two second cameras of the second device are used to obtain second image information of auxiliary tools on the front wheels and rear wheels on the other side of the vehicle to be inspected; the control device is connected to each second camera to receive each second image information and process the second image information.

Images