Vehicle lamp inspection system
The vehicle headlight inspection system automates the inspection of vehicle headlights through its image acquisition and control modules, solving the problems of high cost and oversight associated with manual inspection and achieving highly efficient vehicle headlight inspection.
Patent Information
- Application Number
- CN202422825455.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In existing technologies, vehicle headlight inspection relies on manual observation, which leads to high labor costs, is prone to oversights, and results in poor inspection effectiveness.
The vehicle headlight inspection system includes a control module and multiple image acquisition modules. The image acquisition modules are designed for different vehicle headlights. The system automatically performs headlight inspections and obtains inspection results through image acquisition and control modules.
It reduced labor costs, minimized inspection oversights, and improved the effectiveness of vehicle light inspections.
Smart Images
Figure CN223538505U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle headlight inspection technology, and in particular to a vehicle headlight inspection system. Background Technology
[0002] During the vehicle inspection process, a comprehensive inspection of all vehicle lights (including headlights, front fog lights, taillights, trunk lid taillights, high-mounted brake lights, rear fog lights, and rearview mirror lights) is required to ensure that the vehicle lights are in normal working order.
[0003] In related technologies, after the vehicle lights are installed, inspectors typically visually inspect each light to determine if they are functioning properly. However, this manual inspection method is labor-intensive and prone to oversights, resulting in ineffective inspections. Utility Model Content
[0004] The main purpose of this application is to provide a vehicle headlight inspection system, which aims to solve the technical problems of omissions and poor inspection results in vehicle headlight inspection in related technologies.
[0005] To achieve the above objectives, this application proposes a vehicle headlight inspection system, which includes a control module and multiple image acquisition modules. Different image acquisition modules correspond to different headlights of the same vehicle to be inspected, and all image acquisition modules are connected to the control module.
[0006] The image acquisition module is used to acquire images of the corresponding headlights of the vehicle to be inspected;
[0007] The control module is used to acquire headlight images and obtain headlight inspection results based on the headlight images.
[0008] In one embodiment, the plurality of image acquisition modules include a first image acquisition module, a second image acquisition module, and a third image acquisition module;
[0009] The first image acquisition module is used to acquire images of the headlights, fog lights, and rearview mirror lights of the vehicle to be inspected.
[0010] The second image acquisition module is used to acquire images of the taillights, high-mounted brake lights, and rear fog lights of the vehicle to be inspected.
[0011] The third image acquisition module is used to acquire images of the combined taillights and license plate lights of the vehicle to be inspected.
[0012] In one embodiment, the first image acquisition module includes a first camera and a second camera. The first camera is configured to be aimed at the left front area of the vehicle to be inspected, and the second camera is configured to be aimed at the right front area of the vehicle to be inspected, so as to acquire images of the headlights, fog lights and rearview mirror lights of the vehicle to be inspected.
[0013] The second image acquisition module includes a third camera and a fourth camera. The third camera is configured to face the left rear area of the vehicle to be inspected, and the fourth camera is configured to face the right rear area of the vehicle to be inspected, so as to acquire the taillight image of the vehicle to be inspected.
[0014] The third image acquisition module includes a fifth camera and a sixth camera. The fifth camera is configured to be aimed at the left side of the trunk lid of the vehicle to be inspected, and the sixth camera is configured to be aimed at the right side of the trunk lid of the vehicle to be inspected, so as to acquire the combined taillight image of the vehicle to be inspected.
[0015] In one embodiment, the first camera, the second camera, the third camera, the fourth camera, the fifth camera, and the sixth camera are all located at the same workstation.
[0016] In one embodiment, the third camera, the fourth camera, the fifth camera, and the sixth camera are all rotatably connected to the top steel structure located at the same work station;
[0017] The vehicle headlight inspection system also includes an angle adjustment module, which is connected to the control module, the third camera, the fourth camera, the fifth camera, and the sixth camera respectively. The angle adjustment module is used to adjust the image acquisition angle of at least one of the third camera, the fourth camera, the fifth camera, and the sixth camera according to the angle adjustment command output by the control module.
[0018] In one embodiment, the third, fourth, fifth, and sixth cameras are all connected to the top steel structure located at the same workstation via servo motors.
[0019] In one embodiment, the vehicle headlight inspection system further includes a trigger module connected to the control module, which generates an inspection trigger command so that the control module controls the image acquisition module to acquire vehicle headlight images according to the inspection trigger command.
[0020] In one embodiment, the triggering module includes multiple buttons, and different combinations of the buttons correspond to different check trigger commands.
[0021] In one embodiment, the vehicle light inspection system further includes a fingerprint module connected to a trigger module for verifying the operator's access rights.
[0022] In one embodiment, the vehicle headlight inspection system further includes a display module connected to the control module for displaying the vehicle headlight inspection results.
[0023] One or more technical solutions proposed in this application have at least the following technical effects:
[0024] The vehicle headlight inspection system proposed in this application includes a control module and multiple image acquisition modules, all of which are connected to the control module. Different image acquisition modules correspond to different headlights of the same vehicle to be inspected. Thus, the image acquisition modules can acquire headlight images of the corresponding headlight sections of the vehicle to be inspected. The control module then inspects the entire vehicle's headlights based on these headlight images to obtain the headlight inspection results. Compared to related technologies that rely on human observation to determine whether headlights are in normal working order, this application automatically acquires vehicle headlight images for inspection through the image acquisition and control modules. This reduces labor costs and minimizes potential oversights during manual inspection, thereby improving the effectiveness of headlight inspection. Attached Figure Description
[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0026] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a structural schematic diagram of Embodiment 1 of the vehicle headlight inspection system of this application;
[0028] Figure 2 A schematic diagram showing the structure of each camera in the image acquisition module;
[0029] Figure 3 This is a flowchart illustrating Embodiment 1 of the vehicle headlight inspection method of this application;
[0030] Figure 4 This is a simplified flowchart illustrating the vehicle headlight inspection method provided in Embodiment 1 of this application.
[0031] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0032] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.
[0033] To better understand the technical solutions of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0034] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0035] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0036] During the vehicle inspection process, a comprehensive inspection of all vehicle lights (including headlights, front fog lights, taillights, trunk lid taillights, high-mounted brake lights, rear fog lights, and rearview mirror lights) is required to ensure that the vehicle lights are in normal working order.
[0037] In related technologies, after the vehicle lights are installed, inspectors typically visually inspect each light to determine if they are functioning properly. However, this manual inspection method is labor-intensive and prone to oversights, resulting in ineffective inspections.
[0038] To address this technical problem, this application proposes a vehicle headlight inspection system. The system includes a control module and multiple image acquisition modules, all connected to the control module. Different image acquisition modules correspond to different headlights of the same vehicle under inspection. Thus, the image acquisition modules can acquire headlight images of the corresponding headlight sections of the vehicle under inspection. The control module then inspects the entire vehicle's headlights based on these images to obtain the inspection results. Compared to related technologies that rely on human observation to determine whether headlights are functioning properly, this application automatically acquires vehicle headlight images for inspection using the image acquisition and control modules. This reduces labor costs and minimizes potential oversights during manual inspection, thereby improving the effectiveness of headlight inspection.
[0039] The following will be explained and described through several embodiments.
[0040] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the vehicle light inspection system of this application.
[0041] In this embodiment, the vehicle headlight inspection system includes a control module 10 and multiple image acquisition modules. Different image acquisition modules correspond to different headlights of the same vehicle to be inspected, and all image acquisition modules are connected to the control module 10.
[0042] The image acquisition module is used to acquire images of the corresponding headlights of the vehicle to be inspected;
[0043] The control module 10 is used to acquire vehicle headlight images and obtain vehicle headlight inspection results based on the vehicle headlight images.
[0044] Specifically, the image acquisition module can be a device such as a camera that can acquire images of each headlight of the vehicle to be inspected in real time; the control module 10 can be an industrial control cabinet, such as an industrial computer and a power control combination cabinet. The control module 10 can control the working state of the image acquisition module (such as the image acquisition frequency, etc.) through a preset control program, so that the image acquisition module can acquire headlight images of the corresponding headlight parts of the vehicle to be inspected. The control module 10 can obtain the headlight images acquired by the image acquisition module through connection with the image acquisition module, and perform headlight inspection operations on the vehicle to be inspected in combination with preset inspection logic to obtain headlight inspection results. The preset inspection logic can include the on / off status of the headlights in normal operating condition. Therefore, based on the headlight on / off status displayed on the acquired headlight images and the headlight on / off status corresponding to the preset inspection logic, it can be determined whether the headlights of the vehicle to be inspected are normal. In order to facilitate operators to obtain the headlight inspection results more intuitively, in a feasible embodiment, the headlight inspection system can also include a display module, which can be connected to the control module 10 to display the headlight inspection results. This display module can display the headlight image in real time and mark the corresponding inspection results on the headlight image, so that operators can quickly get feedback and understand the actual status of the headlight and possible problems.
[0045] In one feasible implementation, the multiple image acquisition modules may include a first image acquisition module 20, a second image acquisition module 30, and a third image acquisition module 40; wherein, the first image acquisition module 20 is used to acquire images of the headlights, fog lights, and rearview mirror lights of the vehicle to be inspected; the second image acquisition module 30 is used to acquire images of the taillights, high-mounted brake lights, and rear fog lights of the vehicle to be inspected; and the third image acquisition module 40 is used to acquire images of the combination taillights and license plate lights of the vehicle to be inspected. It should be noted that the headlights of the vehicle to be inspected generally include combination headlights (including daytime running lights, low beam headlights, high beam headlights, turn signals, and hazard lights) on the left and right front sides; the fog lights may be front bumper fog lights, or left and right front fog lights, depending on the vehicle model; the rearview mirror lights are generally turn signals and hazard lights on the rearview mirrors; the taillights of the vehicle to be inspected generally include taillights on the left and right rear sides (including position lights, brake lights, turn signals, and hazard lights). (Flash lights); the high-mounted brake light is generally a brake warning light located in the middle of the lower side of the rear window of the vehicle to be inspected; the rear fog light is a fog light located in the middle of the bottom of the rear bumper of the vehicle to be inspected; the combination taillights of the vehicle to be inspected generally include combination lights on the left and right rear sides of the trunk lid (including reversing lights, side marker lights, brake lights, turn signals, and hazard lights). For some special models, the rear reversing lights can also be located in the middle of the bottom of the rear bumper of the vehicle, just like the rear fog lights; the license plate light is generally located in the middle of the trunk lid of the vehicle.
[0046] Figure 2 A structural diagram showing the setup of each camera in the image acquisition module, as follows: Figure 2 As shown, to facilitate the acquisition of images of all the lights of the vehicle to be inspected, the first image acquisition module 20 may include a first camera 21 and a second camera 22. The first camera 21 is configured to be aimed at the left front area of the vehicle to be inspected, and the second camera 22 is configured to be aimed at the right front area of the vehicle to be inspected, in order to acquire images of the headlights, fog lights, and rearview mirror lights of the vehicle to be inspected. The second image acquisition module 30 includes a third camera 31 and a fourth camera 32. The third camera 31 is configured to be aimed at the left rear area of the vehicle to be inspected, and the fourth camera 32 is configured to be aimed at the right rear area of the vehicle to be inspected, in order to acquire images of the taillights of the vehicle to be inspected. The third image acquisition module 40 includes a fifth camera 41 and a sixth camera 42. The fifth camera 41 is configured to be aimed at the left side of the trunk lid of the vehicle to be inspected, and the sixth camera 42 is configured to be aimed at the right side of the trunk lid of the vehicle to be inspected, in order to acquire images of the combined taillights of the vehicle to be inspected. The first camera 21, the second camera 22, the third camera 31, the fourth camera 32, the fifth camera 41, and the sixth camera 42 are all located at the same workstation, facilitating simultaneous acquisition of headlight images from the vehicles under inspection, thereby improving headlight detection efficiency. Figure 2 As shown, each camera can be installed on the top steel structure 00 of the inspection station; the above-mentioned image acquisition modules can also be connected to the production enterprise's intranet to upload the acquired headlight images to the intranet, so as to bind and store the headlight images with vehicle information for subsequent traceability and query.
[0047] As mentioned above, the license plate lights, rear fog lights, and high-mounted brake lights of a vehicle are generally located in the middle of the rear of the vehicle. Therefore, in order to obtain a more accurate image of the vehicle lights, the third camera 31, the fourth camera 32, the fifth camera 41, and the sixth camera 42 can all be rotatably connected to the top steel structure 00 set in the same workstation, which facilitates the adjustment of the camera position and angle according to inspection needs. Figure 1As shown, the vehicle headlight inspection system may further include an angle adjustment module 50, which is connected to the control module 10, the second image acquisition module 30, and the third image acquisition module 40, respectively. The angle adjustment module 50 is used to adjust the image acquisition angle of the second image acquisition module 30 and / or the third image acquisition module 40 according to the angle adjustment command output by the control module 10. Specifically, the angle adjustment module 50 may be connected to the control module 10, the third camera 31, the fourth camera 32, the fifth camera 41, and the sixth camera 42, respectively. This allows it to adjust the image acquisition angle of at least one of the third camera 31, the fourth camera 32, the fifth camera 41, and the sixth camera 42 according to the angle adjustment command output by the control module 10, so that the camera can reach an image acquisition angle that meets the current vehicle headlight inspection requirements. In one feasible embodiment, the third camera 31, the fourth camera 32, the fifth camera 41, and the sixth camera 42 can all be connected to the top steel structure 00 located at the same workstation via servo motors. For example, a servo motor can be connected to a camera bracket, gimbal, or lens mount. The control module 10 can control the rotation angle of the servo motor to adjust the image acquisition angle of the image acquisition module. In one example, the third camera 31, the fourth camera 32, the fifth camera 41, and the sixth camera 42 can each be connected to a servo motor. When it is necessary to acquire license plate light images, the control module 10 can control the rotation of the servo motor to adjust the axial angle of the fifth camera 41 and the sixth camera 42 so that they are aligned with the middle area of the trunk lid of the vehicle to be inspected, thus acquiring the license plate light images more accurately. Similarly, when it is necessary to acquire rear fog light images and high-mounted brake light images, the control module 10 controls the rotation of the corresponding servo motors so that the third camera 31 can be aligned with the middle area of the bottom of the rear bumper of the vehicle to be inspected, and the fourth camera 32 can be aligned with the middle area of the lower side of the rear window of the vehicle to be inspected, thus acquiring the rear fog light images and high-mounted brake light images of the vehicle to be inspected more accurately.
[0048] It is worth mentioning that, to facilitate the invocation of the headlight inspection program in the control module 10, the headlight inspection system may also include a trigger module 60. The trigger module 60 can be connected to the control module 10 and is used to generate inspection trigger commands, enabling the control module 10 to control the image acquisition module to acquire headlight images according to the inspection trigger commands. The trigger module 60 can generate inspection trigger commands and send them to the control module 10. After receiving the inspection trigger commands, the control module 10 can invoke a preset inspection program and control the image acquisition module to acquire the corresponding headlight images. Thus, the control module 10 can perform headlight inspections based on the acquired headlight images. In actual inspection processes, different vehicle models may be inspected. Therefore, the trigger module 60 may include multiple buttons. Different combinations of buttons can correspond to different inspection trigger commands. Thus, button combinations can be set as needed to trigger headlight inspection programs for different vehicle models.
[0049] In addition, the headlight inspection system may also include a fingerprint module 70 and other actuators 80 (other actuators on the inspection line besides the angle adjustment module 50). The fingerprint module 70 is connected to the trigger module 60 and can be used to verify the operator's operating authority. The operator can verify their identity information through the fingerprint module 70 to ensure that only verified specific operators can perform the relevant trigger operations so that the headlight inspection system can execute the headlight inspection procedure. The control module 10 can also be connected to the equipment on the LCP (Liquid Crystal Polymer) production line to control the operation of the LCP production line; the control module 10 is also connected to the AVI system (Automatic Vehicle Identification). The AVI system can send information queues of vehicles to be inspected to the control module 10, so that the control module 10 can configure the corresponding headlight inspection procedure. At the same time, the control module 10 can also send the headlight inspection results to the AVI system, bind them with production instruction information, and then upload them to the QIS (Quality Information System) for data storage and traceability.
[0050] In this embodiment, the image acquisition module can acquire images of the corresponding headlights of the vehicle to be inspected, and the control module then checks the headlights of the entire vehicle based on the headlight images to obtain the headlight inspection results. Compared with related technologies that rely on the human eyes of inspectors to determine whether the headlights are in normal working condition, this application automatically acquires headlight images of the vehicle for inspection through the image acquisition module and the control module, which can reduce labor costs and reduce the inspection omissions that may occur during manual inspection, thereby improving the effectiveness of headlight inspection.
[0051] Based on the aforementioned vehicle headlight inspection system, this application provides a vehicle headlight inspection method, referring to... Figure 3 , Figure 3 This is a flowchart illustrating Embodiment 1 of the vehicle headlight inspection method of this application.
[0052] In this embodiment, the vehicle headlight inspection method includes steps S100 to S200:
[0053] Step S100: Obtain vehicle headlight images captured by multiple image acquisition modules.
[0054] Different image acquisition modules correspond to different headlights of the same vehicle to be inspected; headlight images include multiple headlight images acquired by the same image acquisition module according to a preset sampling time and sampling frequency.
[0055] Step S200: Obtain the headlight inspection result based on the preset inspection logic and headlight image.
[0056] The preset check logic includes whether the headlights are on or off when they are in normal operating condition.
[0057] Specifically, different image acquisition modules correspond to different headlights of the same vehicle under inspection, and can acquire headlight images from different headlight locations. For details, please refer to the description in the headlight inspection system implementation section, which will not be repeated here. Since headlight inspection requires judging the working status of the headlights based on their flickering, headlight images can be acquired within a certain time range using image acquisition modules. For example, headlight images can be acquired at a sampling frequency of 350ms, with a preset sampling time set to 2100ms. Thus, one image acquisition module can acquire six headlight images. These multiple headlight images reflect the flickering (i.e., on / off state) of the headlights, facilitating the analysis of whether there are any faults or abnormalities in the headlights. It should be noted that the preset sampling time and sampling frequency of different image acquisition modules can be the same or different, and can be set according to actual inspection needs.
[0058] It is understandable that there may be design differences between different vehicle models. Therefore, in order to ensure that the image acquisition module can accurately acquire the headlight image, in one feasible implementation, steps A100 to A200 may be included before step S100:
[0059] Step A100: Determine the vehicle model of the vehicle to be inspected.
[0060] Different vehicle models correspond to different preset inspection logic and image acquisition locations.
[0061] Step A200: Upon receiving an inspection trigger command for the vehicle to be inspected, control multiple image acquisition modules to adjust to the image acquisition position corresponding to the vehicle model, so that the image acquisition modules can acquire vehicle headlight images.
[0062] Specifically, before starting the vehicle headlight inspection, the vehicle to be inspected can be identified through the AVI system. For example, the vehicle model can be determined by scanning a QR code or other unique vehicle identification code on the vehicle body; or, as a feasible implementation, step A100 can specifically include steps A110 to A130:
[0063] Step A110: Obtain a vehicle image of the vehicle to be inspected.
[0064] Step A120: Match the vehicle image with at least one preset vehicle model template to obtain the vehicle model matching result.
[0065] Each preset vehicle model template corresponds to a specific vehicle model.
[0066] Step A130: If a vehicle model template that matches the vehicle image exists among all the preset vehicle model templates, output a vehicle model matching success message and determine the vehicle model corresponding to the matching vehicle model template as the vehicle model of the vehicle to be inspected.
[0067] The aforementioned image acquisition module can be used to capture vehicle images of the vehicle to be inspected (including images from different perspectives such as the front and rear of the vehicle). After acquiring the vehicle image, it is matched against a preset vehicle model template. The preset vehicle model template can include features that reflect the specific vehicle model, such as the position of the headlights, the shape of the front of the vehicle, the layout of the lights, and the outline. For example, image processing algorithms can be used to extract features from the acquired vehicle image, extracting features such as the vehicle's outline and headlights, and then comparing them with the features in the preset vehicle model template. If a matching vehicle model template exists among all preset vehicle model templates, a successful vehicle model match can be output, and the corresponding vehicle model can be identified as the vehicle model of the vehicle to be inspected. However, in practical applications, the clarity of the captured vehicle image may affect the identification of the correct vehicle model from the preset vehicle model templates. Therefore, if no matching vehicle model template exists among all preset vehicle model templates, an abnormal vehicle model match can be output to prompt the operator to perform manual vehicle model matching to determine the vehicle model of the vehicle to be inspected. This ensures that the corresponding vehicle model of all vehicles to be inspected can be determined, facilitating subsequent headlight inspection operations.
[0068] After determining the vehicle model to be inspected, multiple image acquisition modules can be precisely adjusted to the image acquisition position corresponding to the vehicle model based on the inspection trigger command issued by the operator. This ensures that the image acquisition modules are aligned with the vehicle's headlight area, facilitating the acquisition of clear headlight images. For example, the angle adjustment module 50 in the aforementioned headlight inspection system can be controlled by the control module 10 to change the image acquisition angle of the image acquisition modules, adjusting them to the corresponding image acquisition position.
[0069] After adjusting the image acquisition module to a suitable image acquisition position, the module can be controlled to acquire vehicle headlight images and return them to the control module 10. The control module 10 can then perform a vehicle headlight inspection based on preset inspection logic and the acquired headlight images to obtain the inspection results. The preset inspection logic includes the on / off status of the headlights under normal operating conditions. The headlight images can be used to determine whether the headlights are on or off according to the expected preset inspection logic, thereby obtaining the headlight inspection results.
[0070] Different vehicle models may have different preset inspection logics. Therefore, after determining the vehicle model, the corresponding preset inspection logic can be determined. The operator can turn on all the lights of the vehicle to be inspected, and the image acquisition module will acquire the headlight images. The control module 10 will perform headlight inspection according to the headlight images and the preset inspection logic corresponding to the current vehicle model. If the vehicle to be inspected is the first preset vehicle model, and the headlight images show that the daytime running lights are all on, both low beam and high beam are all on, both turn signals and hazard lights are on and off, both turn signals and hazard lights in the rearview mirror are on and off, both left and right front fog lights are on, both parking lights and brake lights are on, both turn signals and hazard lights are on and off, the reverse lights in the combination taillights are all on, the license plate lights are all on, and the high-mounted brake lights are all on, then the headlight inspection result of the vehicle to be inspected can be determined to be normal.
[0071] If the vehicle to be inspected is the second preset vehicle model, and the daytime running lights, low beam and high beam headlights are all on, the turn signals and hazard lights are both on and off, the front bumper fog lights are all on, the turn signals and hazard lights in the rearview mirrors are both on and off, the parking lights and brake lights are all on, the reverse lights in the combination taillights are all on, the license plate lights are all on, and the high-mounted brake light is all on, then the vehicle's headlight inspection results can be determined to be normal.
[0072] If the vehicle to be inspected is the third preset vehicle model, and the following conditions are met in the headlight image: all daytime running lights are on, both low beam and high beam headlights are on, both turn signals and hazard lights are on and off, all front bumper fog lights are on, both rearview mirror turn signals and hazard lights are on and off, all parking lights and brake lights are on, both turn signals and hazard lights are on and off, both turn signals and hazard lights in the combination taillights are on and off, all license plate lights are on, and the rear bumper bottom reversing lights and rear fog lights are on, then the headlight inspection results of the vehicle to be inspected can be determined to be normal.
[0073] If the headlight image of the vehicle to be inspected does not meet the judgment logic corresponding to the preset vehicle model, the headlight inspection result of the vehicle to be inspected can be determined as headlight abnormality. In the case of headlight abnormality, an abnormality prompt message can be output. The abnormality prompt message includes information about the abnormal headlight part so that the operator can promptly confirm and perform abnormality troubleshooting.
[0074] It is easy to understand that the vehicle headlight inspection method provided in this application can acquire vehicle headlight images collected by multiple image acquisition modules; wherein, different image acquisition modules correspond to different headlights of the same vehicle to be inspected; the headlight images include multiple headlight images collected by the same image acquisition module according to a preset sampling time and sampling frequency; thus, the headlight inspection result can be obtained according to a preset inspection logic and the headlight images, the preset inspection logic including the on / off status of the headlights in normal operating condition. This application can automatically acquire vehicle headlight images for inspection, which can reduce labor costs compared to the manual inspection method in related technologies, reduce the inspection omissions that may occur in manual inspection, and ensure the effectiveness of headlight inspection.
[0075] For example, to help understand the implementation process of the vehicle headlight inspection method in Embodiment 1, please refer to... Figure 4 , Figure 4 A simplified flowchart of a vehicle headlight inspection method is provided, specifically:
[0076] On the vehicle production line, AVI can issue production instructions. Operators can trigger the vehicle model recognition program by pressing the LS1 button on the trigger module. Three cameras positioned at different locations on the vehicle in the image acquisition module (e.g., a first camera 21 aligned with the front left area of the vehicle, a third camera 31 aligned with the rear left area, and a fifth camera 41 aligned with the left side of the trunk lid) can simultaneously take pictures, acquiring vehicle images for model comparison. If the model comparison is successful, a "Model X Matching OK" message will be output; otherwise, the comparison will fail. The system outputs a "Model Matching Anomaly" message, indicating an abnormal vehicle model. At this point, the vehicle production line stops, and the operator manually selects the model to be inspected. After determining the vehicle model, the system waits for the inspection trigger command. The LS2, LS3, and LS8 combination keys on the trigger module correspond to the inspection procedure for model C (first preset vehicle model); the LS3 and LS6 combination keys correspond to the inspection procedure for model L (second preset vehicle model); and the LS4 and LS7 combination keys correspond to the inspection procedure for model CHR (third preset vehicle model). The cameras in the image acquisition module can automatically adjust to their corresponding positions. When the first camera 21 and the second camera 22 are acquiring images of the L and CHR models, their preset sampling time can be set to 2100ms, the sampling frequency to 350ms, and 6 headlight images can be acquired. When acquiring fog light images of the C model, since the fog light position of the C model differs from that of the L and CHR models, a seventh camera (camera 7) can be set separately to acquire fog light images of the C model. The preset sampling time of camera 7 can be set to 1500ms, the sampling frequency to 500ms, and 3 fog light images can be acquired. The third camera 31 and the fourth camera 32... When acquiring images of vehicle taillights, the preset sampling time can be set to 2100ms, the sampling frequency to 350ms, and 6 taillight images can be acquired. When the third camera 31 needs to acquire images of the rear fog lights in the middle position of the bottom of the rear bumper of the CHR model, the preset sampling time can be adjusted to 1500ms, the sampling frequency to 500ms, and 3 rear fog light images can be acquired. When the fourth camera 32 is used to acquire images of the high-mounted brake lights in the middle position below the rear window of all models, the preset sampling time can be adjusted to 1500ms, the sampling frequency to 500ms, and 3 high-mounted brake light images can be acquired. When the fifth camera 41 and the sixth camera 42 are used to acquire images of the license plate lights in the middle position of the trunk lid of all models, the preset sampling time of the fifth camera 41 and the sixth camera 42 can be adjusted to 1500ms, and the sampling frequency to 500ms.
[0077] When the LS5, LS6, and LS7 buttons on the trigger module are activated, the system waits for the high-mounted brake light detection trigger button CB2 to be activated. At this time, the vehicle indicator light flashes, and a voice announcement says "Apply the brake." The high-mounted brake light detection timer begins. If the timer t ≥ 5 seconds but CB2 is not detected, an alarm "High-mounted brake light not detected" is output, and the production line is stopped. When CB2 is activated, the position of the corresponding camera can be adjusted. For example, the position and angle of the fourth camera 32 can be adjusted via a servo motor, changing its initial position aligned with the right rear area of the vehicle to be inspected to a position aligned with the lower center area of the rear window, thus capturing the high-mounted brake light image. After the position adjustment is complete, the corresponding camera can be controlled to start taking pictures. It should be noted that the number and frequency of camera photos can be controlled independently by the camera's vision program. The captured headlight images can be processed and calculated to output the visual judgment result (i.e., headlight inspection result). If the inspection result is normal, "Detection OK" is output; if the inspection result is abnormal, an alarm "X-light abnormal" is output. At this time, the production line can be stopped for manual confirmation until the abnormality is resolved. The acquired headlight images and headlight inspection results are uploaded to the intranet and the QIS system. Then, the vision system composed of the image acquisition module is reset, and the control system (i.e., the control module) is also reset to its initial state, waiting for the next headlight inspection operation.
[0078] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the vehicle headlight inspection method of this application. Any simple modifications based on this technical concept are within the protection scope of this application.
[0079] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.
Claims
1. A vehicle headlight inspection system, characterized in that, The vehicle headlight inspection system includes a control module and multiple image acquisition modules. Different image acquisition modules correspond to different headlights of the same vehicle to be inspected. All image acquisition modules are connected to the control module. The image acquisition module is used to acquire images of the corresponding headlights of the vehicle to be inspected. The control module is used to acquire the headlight image and obtain the headlight inspection result based on the headlight image.
2. The vehicle headlight inspection system as described in claim 1, characterized in that, The plurality of image acquisition modules include a first image acquisition module, a second image acquisition module, and a third image acquisition module; The first image acquisition module is used to acquire images of the headlights, fog lights, and rearview mirror lights of the vehicle to be inspected. The second image acquisition module is used to acquire images of the taillights, high-mounted brake lights, and rear fog lights of the vehicle to be inspected. The third image acquisition module is used to acquire images of the combined taillights and license plate lights of the vehicle to be inspected.
3. The vehicle headlight inspection system as described in claim 2, characterized in that, The first image acquisition module includes a first camera and a second camera. The first camera is configured to face the left front area of the vehicle to be inspected, and the second camera is configured to face the right front area of the vehicle to be inspected, so as to acquire images of the headlights, fog lights and rearview mirror lights of the vehicle to be inspected. The second image acquisition module includes a third camera and a fourth camera. The third camera is configured to be aimed at the left rear area of the vehicle to be inspected, and the fourth camera is configured to be aimed at the right rear area of the vehicle to be inspected, so as to acquire the taillight image of the vehicle to be inspected. The third image acquisition module includes a fifth camera and a sixth camera. The fifth camera is configured to be aimed at the left side of the trunk lid of the vehicle to be inspected, and the sixth camera is configured to be aimed at the right side of the trunk lid of the vehicle to be inspected, so as to acquire the combined taillight image of the vehicle to be inspected.
4. The vehicle headlight inspection system as described in claim 3, characterized in that, The first camera, the second camera, the third camera, the fourth camera, the fifth camera, and the sixth camera are all located at the same workstation.
5. The vehicle headlight inspection system as described in claim 4, characterized in that, The third camera, the fourth camera, the fifth camera, and the sixth camera are all rotatably connected to the top steel structure located at the same workstation; The vehicle headlight inspection system also includes an angle adjustment module, which is connected to the control module, the third camera, the fourth camera, the fifth camera, and the sixth camera respectively. The angle adjustment module is used to adjust the image acquisition angle of at least one of the third camera, the fourth camera, the fifth camera, and the sixth camera according to the angle adjustment command output by the control module.
6. The vehicle headlight inspection system as described in claim 5, characterized in that, The third, fourth, fifth, and sixth cameras are all connected to the top steel structure located at the same workstation via servo motors.
7. The vehicle headlight inspection system as described in claim 1, characterized in that, The vehicle headlight inspection system also includes a trigger module, which is connected to the control module and is used to generate an inspection trigger command so that the control module controls the image acquisition module to acquire the vehicle headlight image according to the inspection trigger command.
8. The vehicle headlight inspection system as described in claim 7, characterized in that, The trigger module includes multiple buttons, and different combinations of the buttons correspond to different check trigger commands.
9. The vehicle headlight inspection system as described in claim 7, characterized in that, The vehicle headlight inspection system also includes a fingerprint module, which is connected to the trigger module and is used to verify the operator's operating authority.
10. The vehicle headlight inspection system as described in any one of claims 1 to 9, characterized in that, The vehicle headlight inspection system also includes a display module, which is connected to the control module and is used to display the vehicle headlight inspection results.