Steering wheel steering angle detection system and detection method

Abstract

The present invention relates to the field of vehicle technology, and discloses a steering wheel steering angle detection system and detection method. When a vehicle enters a detection position, a mobile device moves the detection device to a preset position so that the driver can use the detection device without getting off the vehicle; the front locking shaft is driven by an electric locking assembly to clamp the inner side of the front end wheel rim of the steering wheel; the installation position of the left locking shaft on the first leg is adjusted, and the installation position of the right locking shaft on the second leg is adjusted so that the left locking shaft and the right locking shaft can be clamped with the lower spoke of the steering wheel respectively; the steering angle of the steering wheel is detected by an angle sensor; the horizontal and zero point positions of the detection device are adjusted, and the front wheels of the vehicle are straightened and adjusted according to the detection specifications; after the detection is completed, the detection device is placed on the mobile device, and the mobile device moves the detection device to the initial position. The system is easy to operate, has high detection efficiency and high detection accuracy, and is suitable for steering wheel detection of various models.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a steering wheel steering angle detection system and a detection method. Background Art

[0002] The default zero point of a car's steering wheel will affect the vehicle's yaw angle when driving in a straight line, while the left and right installation inclination angles of the steering wheel will also affect the driver's lane deviation and operating comfort during vehicle driving. The appropriate steering wheel zero position is also a very important factor in the vehicle's realization of autonomous driving. Both involve the vehicle's safe driving and visual operation on the road.

[0003] Traditional detection devices can only detect the maximum steering angle of the steering wheel, and cannot detect the default zero point of the steering wheel and the left and right installation inclination angles of the steering wheel at the same time. At the same time, conventional detection sensor aging, mechanical component wear and tear, looseness, poor workmanship, and failure to calibrate regularly will all cause large measurement errors and cannot reflect the performance of both well. At present, the angle detection of the steering wheel is mostly done by manual visual inspection, which has poor accuracy, low efficiency, and is applicable to few car models. Summary of the invention

[0004] Based on the above problems, the purpose of the present invention is to provide a steering wheel steering angle detection system and detection method, which are easy to operate, have high detection efficiency and high detection accuracy, and are suitable for steering wheel detection of various types of vehicles.

[0005] In order to achieve the above objectives, the following technical solutions are provided:

[0006] In a first aspect, the present invention provides a steering wheel steering angle detection system, comprising a detection device and a moving device for moving the detection device to a preset position, the detection device comprising a shell, an angle sensor, an electric locking assembly, a front locking shaft, a first leg, a second leg, a left locking shaft and a right locking shaft, the angle sensor being arranged in the shell, the electric locking assembly, the first leg and the second leg being rotatably arranged on the shell, respectively, the left locking shaft being adjustably mounted on the first leg, the right locking shaft being adjustably mounted on the second leg, the angle sensor being used to detect the steering angle of the steering wheel, the electric locking assembly being used to drive the front locking shaft to abut against the rim of the steering wheel, and the left locking shaft and the right locking shaft being respectively abutted against the spokes of the steering wheel.

[0007] As an optional solution of the steering wheel steering angle detection system provided by the present invention, the mobile device includes a support frame, a slide and a support arm, the slide is height-adjustably arranged on the support frame, the support arm is horizontally position-adjustably arranged on the slide, and the support arm is used to place the detection device.

[0008] As an optional solution of the steering wheel steering angle detection system provided by the present invention, the mobile device also includes a vertical drive component, a vertical track is arranged on the support frame, the slide seat is slidably matched with the vertical track, and the vertical drive component is used to drive the slide seat to move on the vertical track.

[0009] As an optional solution of the steering wheel steering angle detection system provided by the present invention, the moving device also includes a horizontal driving component, a horizontal track is arranged on the slide seat, the support arm slides in cooperation with the horizontal track, and the horizontal driving component is used to drive the support arm to move on the horizontal track.

[0010] As an optional solution of the steering wheel steering angle detection system provided by the present invention, a plurality of first mounting holes are arranged on the first leg, a first fastener is arranged on the left locking shaft, and the first fastener is selectively connected to any one of the plurality of first mounting holes; a plurality of second mounting holes are arranged on the second leg, a second fastener is arranged on the right locking shaft, and the second fastener is selectively connected to any one of the plurality of second mounting holes.

[0011] As an optional solution of the steering wheel steering angle detection system provided by the present invention, a first slide rail is arranged on the first leg, a first slider which is slidably matched with the first slide rail is arranged on the left locking shaft, a first locking piece is arranged on the first slider, the first locking piece is threadedly connected to the first slider and can abut against the first slide rail; a second slide rail is arranged on the second leg, a second slider which is slidably matched with the first slide rail is arranged on the right locking shaft, a second locking piece is arranged on the second slider, the second locking piece is threadedly connected to the second slider and can abut against the second slide rail.

[0012] As an optional solution of the steering wheel steering angle detection system provided by the present invention, the detection device also includes a main controller and a wireless communication module, and the main controller communicates with the angle sensor through the wireless communication module.

[0013] As an optional solution of the steering wheel steering angle detection system provided by the present invention, the detection device also includes a power module and a charging module, the power module is used to power the angle sensor, the main controller and the wireless communication module, and the charging module is used to charge the power module.

[0014] As an optional solution of the steering wheel steering angle detection system provided by the present invention, the detection device also includes a liquid crystal screen, and the liquid crystal screen is electrically connected to the main controller.

[0015] In a second aspect, the present invention further provides a steering wheel steering angle detection method, which uses the above-mentioned steering wheel steering angle detection system and comprises the following steps:

[0016] When the vehicle enters the detection position, the moving device moves the detection device to a preset position so that the driver can access the detection device without getting off the vehicle;

[0017] The front locking shaft is driven to clamp with the inner side of the front wheel rim of the steering wheel through the electric locking assembly;

[0018] Adjust the installation position of the left locking shaft on the first leg and the installation position of the right locking shaft on the second leg so that the left locking shaft and the right locking shaft can be clamped with the lower spokes of the steering wheel respectively;

[0019] Detect the steering angle of the steering wheel through an angle sensor;

[0020] Adjust the level and zero position of the detection device, and align the front wheels of the vehicle according to the detection specifications;

[0021] After the detection is completed, the detection device is placed on the moving device, and the moving device moves the detection device to the initial position.

[0022] The beneficial effects of the present invention are:

[0023] The steering wheel steering angle detection system and detection method provided by the present invention, first, when the vehicle enters the detection position, the mobile device moves the detection device to a preset position so that the driver can use the detection device without getting off the vehicle; secondly, the front locking shaft is driven by the electric locking assembly to clamp the inner side of the front end wheel rim of the steering wheel; then, the installation position of the left locking shaft on the first leg is adjusted, and the installation position of the right locking shaft on the second leg is adjusted so that the left locking shaft and the right locking shaft can be clamped with the lower spoke of the steering wheel respectively; then, the steering angle of the steering wheel is detected by the angle sensor; then, the horizontal and zero point positions of the detection device are adjusted, and the front wheels of the vehicle are straightened and adjusted according to the detection specifications; finally, after the detection is completed, the detection device is placed on the mobile device, and the mobile device moves the detection device to the initial position. The steering wheel steering angle detection system and detection method provided by the present invention are easy to operate, have high detection efficiency, high detection accuracy, and are suitable for steering wheel detection of various models. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0025] Figure 1 is a structural schematic diagram of a steering wheel steering angle detection system provided in a specific embodiment of the present invention;

[0026] Figure 2 It is a structural schematic diagram of a detection device in a steering wheel steering angle detection system provided in a specific embodiment of the present invention at a viewing angle;

[0027] Figure 3 It is a structural schematic diagram of a detection device in a steering wheel steering angle detection system provided in a specific embodiment of the present invention from another perspective.

[0028] In the figure:

[0029] 1-Detection device; 2-Moving device;

[0030] 11-housing; 12-front locking shaft; 13-first leg; 131-first mounting hole; 14-second leg; 141-second mounting hole; 15-left locking shaft; 16-right locking shaft; 17-LCD screen; 18-bracket;

[0031] 21-support frame; 22-slide seat; 23-support arm; 24-vertical drive assembly; 25-vertical track; 26-horizontal drive assembly; 27-horizontal track. DETAILED DESCRIPTION

[0032] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figures 1 to 3 As shown, this embodiment provides a steering wheel steering angle detection system, which is easy to operate, has high detection efficiency and high detection accuracy, and is suitable for steering wheel detection of various vehicle models. The steering wheel steering angle detection system includes a detection device 1 and a moving device 2 for moving the detection device 1 to a preset position. The detection device 1 includes a housing 11, an angle sensor, an electric locking assembly, a front locking shaft 12, a first leg 13, a second leg 14, a left locking shaft 15 and a right locking shaft 16. The angle sensor is arranged in the housing 11, and the electric locking assembly, the first leg 13 and the second leg 14 are rotatably arranged on the housing 11. The left locking shaft 15 is adjustable on the first leg 13, and the right locking shaft 16 is adjustable on the second leg 14. The angle sensor is used to detect the steering angle of the steering wheel, and the electric locking assembly is used to drive the front locking shaft 12 to abut against the rim of the steering wheel, and the left locking shaft 15 and the right locking shaft 16 are respectively abutted against the spokes of the steering wheel.

[0036] First, when the vehicle enters the detection position, the mobile device 2 moves the detection device 1 to a preset position so that the driver can use the detection device 1 without getting off the vehicle; secondly, the front locking shaft 12 is driven by the electric locking assembly to clamp the inner side of the front end rim of the steering wheel; then, the installation position of the left locking shaft 15 on the first leg 13 is adjusted, and the installation position of the right locking shaft 16 on the second leg 14 is adjusted, so that the left locking shaft 15 and the right locking shaft 16 can be clamped with the lower spokes of the steering wheel respectively; then, the steering angle of the steering wheel is detected by the angle sensor; then, the horizontal and zero point position of the detection device 1 is adjusted, and the front wheels of the vehicle are straightened and adjusted according to the detection specifications; finally, after the detection is completed, the detection device 1 is placed on the mobile device 2, and the mobile device 2 moves the detection device 1 to the initial position.

[0037] Optionally, the mobile device 2 includes a support frame 21, a slide 22 and a support arm 23. The slide 22 is arranged on the support frame 21 in an adjustable height. The support arm 23 is arranged on the slide 22 in an adjustable horizontal position. The support arm 23 is used to place the detection device 1. The housing 11 is also provided with a bracket 18, and the bracket 18 is used to be detachably connected to the support arm 23. By adjusting the height of the slide 22 on the support frame 21, the support arm 23 and the detection device 1 are adjusted to a height suitable for the driver to pick up and place. By adjusting the horizontal position of the support arm 23 on the slide 22, the detection device 1 is adjusted to a horizontal position suitable for the driver to pick up and place, so that the driver can pick up and place the detection device 1 on the vehicle without getting off the vehicle, which is convenient to operate and efficient.

[0038] Optionally, the mobile device 2 further includes a vertical drive assembly 24, a vertical track 25 is provided on the support frame 21, the slide 22 is slidably matched with the vertical track 25, and the vertical drive assembly 24 is used to drive the slide 22 to move on the vertical track 25. The vertical drive assembly 24 can be a ball screw pair driven by a motor, and has a strong load-bearing capacity.

[0039] Optionally, the mobile device 2 also includes a horizontal drive assembly 26, a horizontal track 27 is provided on the slide 22, the support arm 23 is slidably matched with the horizontal track 27, and the horizontal drive assembly 26 is used to drive the support arm 23 to move on the horizontal track 27. The horizontal drive assembly 26 can be a linear motor, the mover and stator of the linear motor have no mechanical connection (brushless), and the linear motor system can be a magnetic track drive or a thrust coil drive. For a motor moved by a thrust coil, the weight and load ratio of the thrust coil is very small. A motor moved by a magnetic track must not only bear the load, but also the mass of the magnetic track, but does not require a cable management system. The same electromagnetic force that generates torque on the rotating motor generates a linear thrust on the linear motor. The shape of the linear motor can be a flat plate, a U-groove type, or a tubular type. Which structure is most suitable depends on the specifications and working environment of the actual application.

[0040] To adapt to the steering wheels of various vehicle models, optionally, the first leg 13 is provided with a plurality of first mounting holes 131, the left locking shaft 15 is provided with a first fastener, and the first fastener is selectively connected to any one of the plurality of first mounting holes 131; the second leg 14 is provided with a plurality of second mounting holes 141, the right locking shaft 16 is provided with a second fastener, and the second fastener is selectively connected to any one of the plurality of second mounting holes 141. The first mounting hole 131 and the second mounting hole 141 can be threaded holes, respectively, and the first fastener and the second fastener can be bolts, respectively.

[0041] Optionally, a first slide rail is provided on the first leg 13, a first slider slidably matched with the first slide rail is provided on the left locking shaft 15, a first locking piece is provided on the first slider, the first locking piece is threadedly connected to the first slider and can abut against the first slide rail; a second slide rail is provided on the second leg 14, a second slider slidably matched with the first slide rail is provided on the right locking shaft 16, a second locking piece is provided on the second slider, the second locking piece is threadedly connected to the second slider and can abut against the second slide rail. The first locking piece and the second locking piece can be bolts respectively, which are easy to obtain, and can be tightened and loosened by screwing, and are easy to operate.

[0042] Optionally, the detection device 1 further includes a main controller and a wireless communication module, and the main controller communicates with the angle sensor through the wireless communication module. The main controller is used to receive the angle information obtained by the angle sensor, and process it to form control information and prompt information, etc. The wireless communication module is connected to the main controller and is used to output the main control information to the terminal device, or transmit the instruction information of the terminal device to the main controller; the wireless communication module is connected to the terminal device and is used to display the received angle information and control information on the terminal device.

[0043] In order to improve the portability of the detection device 1, optionally, the detection device 1 also includes a power module and a charging module. The power module is used to power the angle sensor, the main controller and the wireless communication module, and the charging module is used to charge the power module. The power module can be arranged in the housing 11, and the charging module can be arranged on the mobile device 2. When the detection device 1 is not in use, the detection device 1 is placed on the mobile device 2, and the power module is charged by the charging module. The charging module can adopt wireless charging technology or wired charging technology, which is not limited here. The charging module has an automatic power-off function when fully charged, which improves safety and prolongs service life.

[0044] Optionally, the detection device 1 further comprises a liquid crystal screen 17, which is electrically connected to the main controller. The liquid crystal screen 17 is used to display the angle information, battery power, calibration warning prompts, etc. collected by the sensor module, so that the driver can intuitively view the measurement data.

[0045] The steering wheel steering angle detection system provided in this embodiment is equipped with a liquid crystal screen 17, which can display the steering wheel angle data, battery power and calibration warning prompts in real time; it is equipped with a charging module to meet the demand of charging at the same time; it is easy to install and suitable for steering wheels of various models, and uses wireless communication to reduce wiring. The mobile device 2 automatically detects the driver's position according to the vehicle model and ensures that the driver does not need to get off the vehicle to pick up the detection device 1 during detection; the operation or intervention work with other equipment can be realized through the buttons and wireless communication function of the detection device 1, which is easy to operate and efficient.

[0046] This embodiment also provides a steering wheel steering angle detection method, which uses the above-mentioned steering wheel steering angle detection system and includes the following steps:

[0047] When the vehicle enters the detection position, the moving device 2 moves the detection device 1 to a preset position so that the driver can use the detection device 1 without getting off the vehicle;

[0048] The front locking shaft 12 is driven by the electric locking assembly to clamp with the inner side of the front end rim of the steering wheel;

[0049] Adjust the installation position of the left locking shaft 15 on the first leg 13, and adjust the installation position of the right locking shaft 16 on the second leg 14, so that the left locking shaft 15 and the right locking shaft 16 can be clamped with the lower spokes of the steering wheel respectively;

[0050] Detect the steering angle of the steering wheel through an angle sensor;

[0051] Adjust the level and zero position of the detection device 1, and align the front wheels of the vehicle according to the detection specifications;

[0052] After the detection is completed, the detection device 1 is placed on the moving device 2, and the moving device 2 moves the detection device 1 to an initial position.

[0053] Specifically, when the detection starts, the detection device 1 is placed on the support arm 23 of the mobile device 2. When the vehicle enters the detection position, the mobile device 2 will adjust the position of the detection device 1 through the vertical drive component 24 and the horizontal drive component 26 according to different vehicle model data, so that the detection device 1 can reach a preset position that the driver can just reach without getting off the vehicle.

[0054] After the driver takes the detection device 1, the driver drives the front locking shaft 12 to abut against the steering wheel rim by controlling the electric locking assembly of the detection device 1 in accordance with the operating specifications, and the left locking shaft 15 and the right locking shaft 16 are respectively abutted against the spokes of the steering wheel, and three-point positioning is achieved using the triangle stability principle to ensure that the detection device 1 is firmly fixed and does not shake.

[0055] Adjust the level and zero position of the detection device 1, and then align the front wheel (steering wheel) of the vehicle according to the detection specification. The process of wheel alignment requires turning the steering wheel. The angle sensor changes in real time during the detection process and transmits the change value to the main controller and displays it on the LCD screen 17. The main controller then uploads various angle values ​​to the terminal device through wireless communication. The terminal device then performs algorithm analysis based on the uploaded angle data and displays whether the steering wheel needs to be adjusted through the LCD screen 17.

[0056] When the front wheels of the vehicle are aligned, if the steering wheel angle deviation is too large and exceeds the standard range, it needs to be adjusted, and the driver can reinstall the steering wheel. If the vehicle is equipped with a hydraulic power steering system (EPS), the detection device 1 can send the measured steering wheel zero position to the relevant terminal device.

[0057] When detecting the steering wheel angle, the buttons on the detection device 1 can be used to reset, pause, continue, select detection items, etc. If no adjustment is required, the test is completed or subsequent detection can be performed by pressing the buttons on the detection device 1.

[0058] After the test is completed, the driver releases the front locking shaft 12, the left locking shaft 15 and the right locking shaft 16, and places the detection device 1 on the mobile device 2 in the correct posture to realize placement charging. At the same time, after the placement setting time, the LCD screen 17 will dim to achieve the purpose of saving power. After charging is completed, the charging module disconnects the input and no longer charges the power module.

[0059] The steering wheel steering angle detection method provided in this embodiment is easy to operate, has high detection efficiency and high detection accuracy, and is applicable to steering wheel detection of various vehicle models.

[0060] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A steering wheel steering angle detection system, characterized in that: The invention comprises a detection device (1) and a moving device (2) for moving the detection device (1) to a preset position, wherein the detection device (1) comprises a housing (11), an angle sensor, an electric locking assembly, a front locking shaft (12), a first leg (13), a second leg (14), a left locking shaft (15) and a right locking shaft (16), wherein the angle sensor is arranged in the housing (11), and the electric locking assembly, the first leg (13) and the second leg (14) can be respectively The left locking shaft (15) is rotatably arranged on the housing (11); the mounting position of the left locking shaft (15) is adjustably arranged on the first leg (13); the mounting position of the right locking shaft (16) is adjustably arranged on the second leg (14); the angle sensor is used to detect the steering angle of the steering wheel; the electric locking assembly is used to drive the front locking shaft (12) to abut against the rim of the steering wheel; the left locking shaft (15) and the right locking shaft (16) are respectively abutted against the spokes of the steering wheel; The mobile device (2) comprises a support frame (21), a slide seat (22) and a supporting arm (23); the slide seat (22) is arranged on the support frame (21) in a height-adjustable manner; the supporting arm (23) is arranged on the slide seat (22) in a horizontal position-adjustable manner; and the supporting arm (23) is used to place the detection device (1).

2. The steering wheel steering angle detection system according to claim 1, characterized in that: The mobile device (2) further comprises a vertical drive assembly (24); a vertical track (25) is provided on the support frame (21); the slide seat (22) is slidably matched with the vertical track (25); and the vertical drive assembly (24) is used to drive the slide seat (22) to move on the vertical track (25).

3. The steering wheel steering angle detection system according to claim 1, characterized in that: The moving device (2) further comprises a horizontal driving assembly (26); a horizontal track (27) is arranged on the slide seat (22); the supporting arm (23) is slidably matched with the horizontal track (27); and the horizontal driving assembly (26) is used to drive the supporting arm (23) to move on the horizontal track (27).

4. The steering wheel steering angle detection system according to claim 1, characterized in that: The first leg (13) is provided with a plurality of first mounting holes (131), the left locking shaft (15) is provided with a first fastener, and the first fastener is selectively connected to any one of the plurality of first mounting holes (131); the second leg (14) is provided with a plurality of second mounting holes (141), the right locking shaft (16) is provided with a second fastener, and the second fastener is selectively connected to any one of the plurality of second mounting holes (141).

5. The steering wheel steering angle detection system according to claim 1, characterized in that: The first leg (13) is provided with a first slide rail, the left locking shaft (15) is provided with a first slider which is slidably matched with the first slide rail, the first slider is provided with a first locking piece, the first locking piece is threadedly connected to the first slider and can abut against the first slide rail; the second leg (14) is provided with a second slide rail, the right locking shaft (16) is provided with a second slider which is slidably matched with the first slide rail, the second slider is provided with a second locking piece, the second locking piece is threadedly connected to the second slider and can abut against the second slide rail.

6. The steering wheel steering angle detection system according to any one of claims 1 to 5, characterized in that: The detection device (1) further comprises a main controller and a wireless communication module, wherein the main controller communicates with the angle sensor via the wireless communication module.

7. The steering wheel steering angle detection system according to claim 6, characterized in that: The detection device (1) further comprises a power module and a charging module, wherein the power module is used to supply power to the angle sensor, the main controller and the wireless communication module, and the charging module is used to charge the power module.

8. The steering wheel steering angle detection system according to claim 6, characterized in that: The detection device (1) further comprises a liquid crystal screen (17), wherein the liquid crystal screen (17) is electrically connected to the main controller.

9. A method for detecting a steering wheel steering angle, characterized in that: The steering wheel steering angle detection system according to any one of claims 1 to 8 comprises the following steps: When the vehicle enters the detection position, the moving device (2) moves the detection device (1) to a preset position so that the driver can use the detection device (1) without getting off the vehicle; The front locking shaft (12) is driven to clamp with the inner side of the front end wheel rim of the steering wheel through the electric locking assembly; Adjusting the installation position of the left locking shaft (15) on the first leg (13), and adjusting the installation position of the right locking shaft (16) on the second leg (14), so that the left locking shaft (15) and the right locking shaft (16) can be clamped with the lower spoke of the steering wheel respectively; Detect the steering angle of the steering wheel through an angle sensor; Adjust the level and zero point position of the detection device (1), and align and adjust the front wheels of the vehicle according to the detection specifications; After the detection is completed, the detection device (1) is placed on the moving device (2), and the moving device (2) moves the detection device (1) to the initial position.

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