A vehicle-mounted camera assembly assisting device and method

Abstract

The application relates to the technical field of vehicle-mounted camera assembly, in particular to a vehicle-mounted camera assembly auxiliary device and method. The device comprises a limiting device and a positioning device, the limiting device comprises a fixed part, the fixed part is horizontally arranged, two limiting parts are symmetrically arranged on the lower sides of the two ends of the fixed part, a limiting groove is formed between the two limiting parts, and the positioning device is fixedly connected to the middle part of the front side of the fixed part; the method comprises the following steps: checking the vehicle-mounted camera assembly auxiliary device before first use; adjusting and fixing the vehicle-mounted camera assembly auxiliary device; mounting the camera on the mounting black area of the front windshield; and checking whether the camera is mounted in place. The application can prevent camera mounting from being out of tolerance and check the out-of-tolerance condition, can better guarantee the calibration success rate of the camera involved in the commercial vehicle driving auxiliary system, and solves the problems that the positioning point is difficult to find, difficult to fix and poor in universality near the camera assembly in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted camera assembly, and in particular to a vehicle-mounted camera assembly auxiliary device and method. Background Art

[0002] Driver assistance systems are active safety technologies that assist the driver, aiming to improve driving safety and convenience. Typical commercial vehicles are equipped with lane departure warning systems and front collision warning systems, while more advanced commercial vehicles may feature lane keeping assist systems and active emergency braking systems.

[0003] The camera is an important component of these systems, and its calibration is also an indispensable part of the successful operation of the driving assistance function. In order to ensure the safety of the driver and other passengers involved in the driving assistance system and to cope with the complexity of actual working conditions, the calibration of the camera has extremely high requirements for its assembly accuracy, vehicle status and environment. In the actual calibration process, the camera needs to be pasted on the assembly black area inside the car's front windshield. The operator needs to align it with the naked eye and install it manually. It is very easy to exceed the tolerance and the posture cannot be ensured to be completely aligned when the vehicle drives to the calibration station. Therefore, even if the target has a certain ability to adapt to the parking posture of the vehicle, if the above two reasons cause the camera to deviate significantly when facing the target, there is a high probability that the camera will exceed the calibration range and cause calibration failure.

[0004] CN112407106B provides a method and device for installing a split binocular camera. The method includes: determining a central symmetric plane of the vehicle; determining a target horizontal line using a first level gauge located on the front windshield; and determining a characteristic installation point using second and third level gauges located on the front windshield. The second and third level gauges are located on either side of the central symmetric plane. When the horizontal calibration lines emitted by the second and third level gauges coincide with the target horizontal line, and the distances between the second and third level gauges and the central symmetric plane are both half the binocular camera's target baseline, the intersection of the vertical calibration lines emitted by the second and third level gauges and the target horizontal line is the characteristic installation point. However, this prior art is relatively complex and does not disclose a technical solution for ensuring accurate camera installation angles.

[0005] CN216424285U discloses a portable suction cup type front camera installation tooling, including a positioning tooling and a pressing tooling. The positioning tooling includes a suction cup handle, a first suction cup, and a positioning frame. The positioning frame is connected to the first suction cup through a steering control member. The first suction cup is connected to the windshield. A suction cup handle is provided on the suction cup. The camera is pasted at the windshield area restricted by the positioning frame. The pressing tooling includes a fixing plate. A threaded hole is provided in the middle of the fixing plate. A screw rod is provided in the threaded hole. The upper end of the screw rod is connected to a rotating handle, and the lower end of the screw rod is connected to a pressing head. The pressing head presses above the camera. Both ends of the fixing plate are respectively connected to a second suction cup through a connecting frame. The second suction cup is connected to the windshield. A suction cup handle is provided on the second suction cup. However, this prior art cannot ensure that the camera is installed in place without out-of-tolerance situations. Summary of the Invention

[0006] The purpose of the present invention is to provide an auxiliary device and method for assembling a vehicle-mounted camera, which can prevent out-of-tolerance during the assembly process through an auxiliary tooling and verify the out-of-tolerance situation of the camera, better ensuring the calibration success rate of the camera involved in the commercial vehicle driving assistance system, and solving the problems of difficult positioning points, difficult fixation, and poor versatility in the prior art for camera assembly.

[0007] The present invention provides the following solutions

[0008] An auxiliary device for assembling a vehicle-mounted camera includes a limiting device and a positioning device. The limiting device includes a fixing part, which is horizontally arranged. Two limiting parts are symmetrically arranged on the lower sides of both ends of the fixing part. A limiting groove is formed between the two limiting parts. The positioning device is fixedly connected to the middle of the front end face of the fixing part.

[0009] A limiting groove is formed between the two limiting parts, which is used to position the left and right positions of the camera during camera installation, and the positioning device is used for positioning to make the yaw angle of the camera meet the installation requirements.

[0010] Furthermore, the limiting device is an overall "冂"-shaped plate structure. Suction cups are respectively provided at the upper corners of both ends of the rear end face of the fixing part. The bottom edges of the two limiting parts are both horizontal and collinear. The inner side edges of the limiting parts are perpendicular to the bottom edges.

[0011] Suction cups are respectively provided at the upper corners of both ends of the rear end face of the fixing part, which can be adsorbed on the front windshield to fix the entire device. The bottom edges of the two limiting parts can be fitted with the connection part between the instrument panel and the front windshield. The inner side edges of the limiting parts are perpendicular to the bottom edges to limit the installation of the camera.

[0012] Furthermore, a laser is provided on the lower surface of the positioning device. The laser line emitted by the laser is parallel to the inner side edge of the limiting part and coincides with the symmetry axis of the two limiting parts. A spirit level is provided on the front end face of the positioning device.

[0013] The laser emits a laser line, which cooperates with the level to make the camera roll angle 0°, meeting the installation requirements.

[0014] Furthermore, slide rails are arranged on the inner sides of the two limiting parts relative to each other, and a limit ruler is slidably connected between the two slide rails.

[0015] Setting a limit ruler to limit the installation height of the camera makes installation more convenient. The limit ruler can slide up and down along the slide rail to adapt to vehicle models with different camera installation heights, thereby improving the versatility of the device.

[0016] A vehicle-mounted camera assembly method, based on the above-mentioned vehicle-mounted camera assembly auxiliary device, comprises the following steps:

[0017] Calibrate the vehicle camera assembly auxiliary device before first use;

[0018] Adjust and fix the vehicle camera assembly auxiliary device;

[0019] Install the camera on the black mounting area of ​​the front windshield;

[0020] Check whether the camera is installed properly.

[0021] Furthermore, the verification of the vehicle-mounted camera assembly auxiliary device before the first use includes the following steps:

[0022] Place the bottom edge of the limiting part of the limiting device on the connection between the instrument panel and the front windshield;

[0023] Turn on the laser and adjust the limit device parallel to the left and right sides so that the laser line passes through the center of the positioning mark in the black area of ​​the front windshield installation;

[0024] Adsorbing the suction cup of the fixing portion onto the front windshield;

[0025] Determine whether the inner side of the limiting portion coincides with the left and right sides of the rectangular installation area of ​​the installation black area:

[0026] If not, the verification fails and the auxiliary device needs to be adjusted or remade;

[0027] If so, observe whether the bubble of the level gauge on the positioning device is horizontal and centered;

[0028] If not, the verification fails and the auxiliary device needs to be adjusted or remade;

[0029] If yes, the verification passes;

[0030] Verifying whether the camera is properly installed includes the following steps:

[0031] Re-engage the two stoppers of the auxiliary tooling with the two side stoppers of the camera, and slide them from top to bottom until the bottom edge of the stoppers touches the instrument panel;

[0032] Observe whether the bubble of the level gauge on the positioning device is horizontal and centered;

[0033] If so, the camera assembly is within tolerance and the installation is complete;

[0034] If not, the camera assembly is out of tolerance. Check the camera and reassemble it.

[0035] Furthermore, the adjusting and fixing of the vehicle-mounted camera assembly auxiliary device includes:

[0036] Place the bottom edge of the limiting part of the limiting device on the connection between the instrument panel and the front windshield;

[0037] Turn on the laser and adjust the limit device parallel to the left and right sides so that the laser line passes through the center of the positioning mark in the black area of ​​the front windshield installation;

[0038] Attach the suction cup of the fixing part of the limiting device to the front windshield.

[0039] Furthermore, the step of installing the camera on the installation black area of ​​the front windshield includes:

[0040] Plug the camera wiring harness into the camera;

[0041] Align the positioning groove on the top surface of the camera with the positioning mark, and stick it to the installation black area through the limiting groove of the limiting device;

[0042] Remove the auxiliary device after pasting.

[0043] Furthermore, the adjusting and fixing vehicle-mounted camera assembly auxiliary device further includes sliding a limit ruler, and fixing the limit ruler so that the bottom edge of the limit ruler coincides with the upper edge of the triangular positioning mark.

[0044] Furthermore, the step of installing the camera on the installation black area of ​​the front windshield includes:

[0045] Plug the camera wiring harness into the camera;

[0046] Place the top surface of the camera in contact with the bottom edge of the limit ruler, and stick it to the installation black area through the limit groove of the limit device;

[0047] Remove the auxiliary device after pasting.

[0048] Compared with the prior art, the present invention has the following advantages:

[0049] The present invention provides an auxiliary device and method for assembling a vehicle-mounted camera. The auxiliary device ensures the assembly quality and verification of the camera and can be adapted to various vehicle models with different camera installation heights.

[0050] Through suction cup fixation and laser line positioning, the suction cup utilizes the properties of glass, allowing the auxiliary tooling to be securely attached to the windshield with virtually no weight increase. Laser line positioning can be adapted to different cabs, eliminating the need to produce different auxiliary tooling for varying heights of the camera mounting black area on the windshield. This auxiliary device has a simple structure, is easy to install, and has low manufacturing costs. The integration of a laser and a level simplifies the auxiliary tooling structure, reduces its weight, makes it easy to use and lightweight, and integrates assembly and verification functions. This solves the problems of existing technologies such as difficulty finding a positioning point near the camera assembly, difficulty in fixing, and poor versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0052] Attachment Figure 1 This is a schematic structural diagram of the vehicle-mounted camera assembly auxiliary device according to Example 1 of the present invention;

[0053] Attachment Figure 2 This is a schematic front view of the structure of the vehicle-mounted camera assembly auxiliary device according to Example 1 of the present invention;

[0054] Attachment Figure 3 This is a schematic rear view of the structure of the vehicle-mounted camera assembly auxiliary device according to Example 1 of the present invention;

[0055] Attachment Figure 4 This is a schematic diagram of the installation of the auxiliary device in the vehicle-mounted camera assembly method according to Example 1 of the present invention;

[0056] Attachment Figure 5 This is a schematic diagram of the structure of the vehicle-mounted camera assembly auxiliary device according to Example 2 of the present invention;

[0057] Attachment Figure 6 This is a schematic diagram of the installation of the auxiliary device in the vehicle-mounted camera assembly method according to Example 2 of the present invention;

[0058] Attachment Figure 7 This is a schematic diagram of the vehicle-mounted camera assembly method of the present invention;

[0059] Attachment Figure 8A schematic diagram of a process for calibrating the vehicle-mounted camera assembly auxiliary device before first use according to the present invention;

[0060] Attachment Figure 9 This is a schematic diagram of the process of installing a camera using an auxiliary device after passing the verification described in Example 1 of the present invention;

[0061] Attachment Figure 10 This is a flow chart of installing a camera using an auxiliary device after passing the verification described in Example 2 of the present invention.

[0062] In the picture:

[0063] 1-limiting device, 11-fixing part, 12-limiting part, 13-suction cup, 14-slide rail, 15-limiting ruler, 2-positioning device, 21-laser, 211-laser line, 22-level, 3-installation black area, 31-positioning mark. DETAILED DESCRIPTION

[0064] To make the objectives, technical solutions, and advantages of this application more clear, this application will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0065] The terms used in the examples of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a," "the," and "the" used in the examples of this application and the appended claims are also intended to include plural forms, and unless the context clearly indicates otherwise, "a plurality" generally includes at least two.

[0066] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0067] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0068] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0069] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or device comprising the element.

[0070] It should be noted in particular that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0071] The vehicle-mounted camera assembly auxiliary device provided in this embodiment is used for camera assembly calibration of commercial vehicles. The camera is square in shape and has the following installation requirements:

[0072] 1. Camera installation yaw angle deviation: design value - 0°, tolerance - 3°;

[0073] 2. Camera installation pitch angle deviation: design value - 0°, tolerance - 3°;

[0074] 3. Camera installation roll angle deviation: design value - 0°, tolerance - 3°.

[0075] In view of the above situation, in order to improve the one-time success rate of camera calibration, it is necessary to improve from the source, that is, camera assembly.

[0076] Example 1, please refer to Figure 1 As shown, this embodiment provides a vehicle-mounted camera assembly auxiliary device, including a limiting device 1 and a positioning device 2 , wherein the positioning device 2 is fixedly connected to the upper portion of the limiting device 1 .

[0077] Specifically, see Figures 1 to 3As shown, the limiting device 1 is made of PP board, which is light and portable, with a soft material and no risk of scratching the glass. The overall structure of the limiting device 1 is a "冂" shape, including a fixed part 11. The fixed part 11 is horizontally arranged, and limiting parts 12 are symmetrically arranged on the lower sides of both ends of the fixed part 11. A limiting groove is formed between the two limiting parts 12 for limiting the camera during installation; on the upper corners at both ends of the rear side of the fixed part 11, suction cups 13 are respectively provided for adsorbing on the front windshield to fix the whole auxiliary device; the bottom edges of the two limiting parts 12 are both horizontally arranged and on the same straight line, and the bottom edges can be fitted with the connecting part between the vehicle cab instrument panel and the front windshield; the inner side edges of the limiting parts 12 are vertically arranged at a 90° angle to the bottom edges, and the inner side edges are used for limiting the camera during installation to make its roll angle 0°.

[0078] The positioning device 2 is fixedly connected to the middle of the front side of the fixed part 11 of the limiting device 1. A laser device 21 is provided on the lower surface of the positioning device 2. The width of the laser line 211 emitted by the laser device 21 is less than 2 mm. The laser line 211 is parallel to the inner side edge of the limiting part 12 and coincides with the symmetry axis of the two limiting parts 12; a circular spirit level 22 is provided on the front side of the positioning device 2 for checking whether the roll angle of the camera installation exceeds the tolerance.

[0079] Please refer to Figure 4 and Figures 7 to 9 [[ID=X]]As shown, this embodiment also provides a method for assembling a vehicle-mounted camera. Based on the above vehicle-mounted camera assembly auxiliary device, it includes the following steps:

[0080] Before using the vehicle-mounted camera assembly auxiliary device for the first time to assist in installing the camera, the auxiliary device needs to be calibrated, including,

[0081] Place the bottom edge of the limiting part 12 of the limiting device 1 in contact with the connecting part between the instrument panel and the front windshield;

[0082] Turn on the laser device 21 and adjust the limiting device 1 horizontally left and right so that the laser line 211 passes through the center of the triangular positioning mark 31 in the installation black area 3 of the front windshield;

[0083] Adsorb the suction cup 13 of the fixed part 11 on the front windshield;

[0084] Use an angle measuring device such as a protractor to measure whether the inner side edge of the limiting part 12 coincides with the left and right side edges of the quasi-rectangular installation area of the installation black area 3:

[0085] If they do not coincide, the calibration fails, and the auxiliary device needs to be adjusted or remade;

[0086] If they coincide, proceed to the next calibration;

[0087] Observe whether the bubble of the spirit level 22 on the positioning device 2 is in the Z-axis, that is, horizontally centered;

[0088] If not, the verification fails and the auxiliary device needs to be adjusted or remade;

[0089] If yes, the verification passes.

[0090] After verification, you can use auxiliary equipment to install the camera, including:

[0091] Plug the camera wiring harness into the camera;

[0092] Place the bottom edge of the limiting portion 12 of the limiting device 1 on the connection between the instrument panel and the front windshield;

[0093] Turn on the laser 21 and adjust the limiter 1 left and right in parallel so that the laser line 211 passes through the center of the triangular positioning mark 31 of the front windshield installation black area 3;

[0094] Adsorb the suction cup 13 of the fixing portion 11 onto the front windshield;

[0095] Tear off the adhesive paper on the camera, align the V-shaped positioning groove on the top surface of the camera with the positioning mark 31, and stick it from top to bottom through the limiting groove of the limiting device 1;

[0096] Remove the auxiliary device after pasting;

[0097] Re-engage the two limiting parts 12 of the auxiliary tooling with the limiting parts on both sides of the camera, and slide them from top to bottom until the bottom edge of the limiting part 12 contacts the instrument panel;

[0098] Observe whether the bubble of the level 22 on the positioning device 2 is on the Z axis, that is, horizontally centered;

[0099] If so, the camera assembly is within tolerance and the installation is complete;

[0100] If not, the camera assembly is out of tolerance. Check the camera and reassemble it.

[0101] In this embodiment, the camera is a square camera, and the limiting device 1 is made by machine cutting according to the width of the camera; the laser beam emitted by the laser 21 is at a certain angle to the front windshield, so a laser line 211 can be formed on the front windshield. In order to improve the positioning accuracy, the width of the laser line 211 should be less than 2 mm; the camera installation black area 3 of the front windshield includes a rectangular black area with the same shape and size as the camera pasting surface, and an inverted triangle positioning mark 31 is provided in the middle of the top edge. A V-shaped positioning groove that matches the positioning mark 31 is provided on the top surface of the camera. The existing installation method is usually to position and install by aligning the V-shaped positioning groove with the positioning mark 31; the level 22 used in this embodiment is a circular bubble level.

[0102] Example 2, please refer to Figure 5 As shown, this embodiment provides an auxiliary device for assembling a vehicle-mounted camera, which adds the function of upper limit on the basis of Embodiment 1.

[0103] Specifically, the limiting device 1 is made of PP board, which is light and portable, with a soft material and no risk of scratching the glass. The overall structure of the limiting device 1 is a "冂" shape, including a fixing part 11, which is horizontally arranged. At the lower sides of both ends of the fixing part 11, limiting parts 12 are symmetrically arranged. A positioning groove is formed between the two limiting parts 12 for limiting the camera during installation; at the upper corners of both ends of the rear side of the fixing part 11, suction cups 13 are respectively provided for adsorbing on the front windshield to fix the whole auxiliary device; the bottom edges of the two limiting parts 12 are both horizontally arranged and on the same straight line, and the bottom edges can be fitted with the connecting part between the instrument panel of the vehicle cab and the front windshield; the inner side edges of the limiting parts 12 are arranged at a 90° angle with the bottom edges, and the inner side edges are used for limiting the camera during installation to make its rolling angle 0°; on the opposite inner side edges of the two limiting parts 12, slide rails 14 are arranged. The slide rails 14 can be made of metal or plastic. A limiting ruler 15 is slidably connected between the two slide rails 14 and can slide up and down and be fixed along the slide rails 14. When installing the camera, the top surface of the camera can be limited to ensure the accuracy of vertical positioning.

[0104] Please refer to Figure 6 、 Figure 7 and Figure 10 As shown, this embodiment also provides a method for assembling a vehicle-mounted camera. Based on the above-mentioned auxiliary device for assembling a vehicle-mounted camera, the verification steps for the auxiliary device during the first use are as in Embodiment 1; after the verification is passed, using the auxiliary device for camera installation includes the following steps:

[0105] Insert the camera wire harness into the camera;

[0106] Place the bottom edge of the limiting part 12 of the limiting device 1 on the connecting part between the instrument panel and the front windshield;

[0107] Turn on the laser 21 and adjust the limiting device 1 horizontally left and right to make the laser line 211 pass through the triangular positioning mark 31 of the installation black area of the front windshield;

[0108] Adsorb the suction cup 13 of the fixing part 11 on the front windshield;

[0109] Slide the limiting ruler 15 until the bottom edge of the limiting ruler 15 coincides with the upper edge of the triangular positioning mark 31 and then fix it;

[0110] Tear off the sticker on the camera, touch the top surface of the camera with the bottom edge of the limiting ruler 15, and paste it from top to bottom through the limiting groove of the limiting device 1;

[0111] Remove the auxiliary device after pasting;

[0112] Re-engage the two limiting parts 12 of the auxiliary tooling with the limiting parts on both sides of the camera, and slide them from top to bottom until the bottom edge of the limiting part 12 contacts the instrument panel;

[0113] Observe whether the bubble of the level 22 on the positioning device 2 is on the Z axis, that is, horizontally centered;

[0114] If so, the camera assembly is within tolerance and the installation is complete;

[0115] If not, the camera assembly is out of tolerance. Check the camera and reassemble it.

[0116] This embodiment uses a limit ruler 15, which eliminates the need to align the V-shaped positioning groove with the positioning mark 31 for positioning and installation, which is more convenient and improves accuracy; the limit ruler 15 can slide up and down, adapting to the different installation height requirements of different car models or camera models, and has good versatility; the level 22 used in this embodiment is a long bubble level, which is easier to observe.

[0117] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention 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 of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for assembling a vehicle-mounted camera, characterized in that: Based on a vehicle-mounted camera assembly auxiliary device, the vehicle-mounted camera assembly auxiliary device includes a limiting device (1) and a positioning device (2). The limiting device (1) includes a fixing part (11). The fixing part (11) is horizontally arranged. Two limiting parts (12) are symmetrically arranged on the lower sides of both ends of the fixing part (11). A limiting groove is formed between the two limiting parts (12). The positioning device (2) is fixedly connected to the middle of the front end face of the fixing part (11); The whole limiting device (1) is a "冂"-shaped plate structure. Suction cups (13) are respectively arranged at the upper corners of both ends of the rear end face of the fixing part (11). The bottom edges of the two limiting parts (12) are both horizontal and collinear. The inner side edges of the limiting parts (12) are perpendicular to the bottom edges; A laser (21) is arranged on the lower surface of the positioning device (2). The laser line (211) emitted by the laser (21) is parallel to the inner side edge of the limiting part (12) and coincides with the symmetry axis of the two limiting parts (12). A spirit level (22) is arranged on the front end face of the positioning device (2); Sliding rails (14) are oppositely arranged on the inner side edges of the two limiting parts (12). A limiting ruler (15) is slidably connected between the two sliding rails (14); The method includes the following steps: Calibrate the vehicle-mounted camera assembly auxiliary device before the first use; Adjust and fix the vehicle-mounted camera assembly auxiliary device; Install the camera on the installation black area (3) of the front windshield; Check whether the installation of the camera is in place; The calibration of the vehicle-mounted camera assembly auxiliary device before the first use includes the following steps: Place the bottom edge of the limiting part (12) of the limiting device (1) in contact with the connection part between the instrument panel and the front windshield; Turn on the laser (21) and adjust the limiting device (1) horizontally left and right so that the laser line (211) passes through the center of the positioning mark (31) of the front windshield installation black area (3); Adsorb the suction cup (13) of the fixing part (11) on the front windshield; Judge whether the inner side edge of the limiting part (12) coincides with the left and right side edges of the rectangular installation area of the installation black area (3): If not, the calibration fails and the auxiliary device needs to be adjusted or remade; If so, observe whether the bubble of the spirit level (22) on the positioning device (2) is horizontally centered; If not, the calibration fails and the auxiliary device needs to be adjusted or remade; If so, the calibration passes; The check whether the installation of the camera is in place includes the following steps: Re-connect the two limiting parts (12) of the auxiliary tooling with the two sides of the camera in contact and slide from top to bottom until the bottom edge of the limiting part (12) touches the instrument panel; Observe whether the bubble of the spirit level (22) on the positioning device (2) is horizontally centered; If so, the camera assembly has no out-of-tolerance and the installation is completed; If not, the camera assembly is out of tolerance, check the camera and re-assemble it; The adjustment and fixation of the vehicle-mounted camera assembly auxiliary device includes: Place the bottom edge of the limiting part (12) of the limiting device (1) in contact with the connection part between the instrument panel and the front windshield; Turn on the laser (21) and adjust the limit device (1) in parallel to the left and right sides so that the laser line (211) passes through the center of the positioning mark (31) of the front windshield installation black area (3); Adsorb the suction cup (13) of the fixing portion (11) of the limiting device (1) onto the front windshield; The adjusting and fixing vehicle-mounted camera assembly auxiliary device further includes a sliding limit ruler (15) that is fixed after the bottom edge of the limit ruler (15) is aligned with the upper edge of the triangular positioning mark (31).

2. The vehicle-mounted camera assembly method according to claim 1, characterized in that: The limiting device (1) is made of PP sheet material.

3. The vehicle-mounted camera assembly method according to claim 1, characterized in that: An angle measuring device is used to measure whether the inner side of the limiting portion (12) coincides with the left and right sides of the rectangular installation area of ​​the installation black area (3).

4. The vehicle-mounted camera assembly method according to claim 1, characterized in that: The level (22) is a circular bubble level.

5. The vehicle-mounted camera assembly method according to claim 1, characterized in that: The step of installing the camera on the installation black area (3) of the front windshield comprises: Plug the camera wiring harness into the camera; The top surface of the camera is brought into contact with the bottom edge of the limit ruler (15), and is pasted onto the installation black area (3) through the limit groove of the limit device (1); Remove the auxiliary device after pasting.

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