A vehicle door sealing detection method and device, electronic equipment and medium

Abstract

The embodiment of the present specification provides a vehicle door sealing detection method, comprising: obtaining three-dimensional model data obtained by three-dimensional scanning on a body-in-white of a vehicle; unifying the scanned three-dimensional model data to a corresponding whole vehicle model coordinate system of the vehicle; determining a cross section of a sealing strip corresponding to each to-be-detected position, predicting interference data of the vehicle door and the sealing strip at the cross section corresponding to any to-be-detected position of the sealing strip when the vehicle door is in a closed state according to the corresponding whole vehicle model coordinate system of the vehicle, and performing sealing detection based on the interference data. In the above process, on the one hand, the sealing of the sealing strip can be judged through quantitative visual data, avoiding the influence of subjective factors, and on the other hand, the position where the sealing has a problem can be accurately positioned, so that the sealing can be adjusted more targetedly.

Description

Technical Field

[0001] This specification relates to the field of vehicle technology, and in particular to a method, device, electronic equipment, and medium for testing the sealing performance of vehicle doors. Background Technology

[0002] Door sealing performance testing refers to the testing and evaluation of the sealing ability of vehicle doors to determine whether the sealing performance of the doors meets engineering design and manufacturing standards. Door sealing performance testing ensures that the doors can effectively isolate the external environment from the interior environment, thus providing sound insulation, waterproofing, and dustproofing, while also maintaining good air conditioning performance inside the vehicle.

[0003] Therefore, door sealing tests are of great significance for ensuring driving safety, improving driving comfort, reducing noise, and saving energy.

[0004] Currently, vehicle manufacturers or related organizations typically use methods including, but not limited to, the following to test the sealing performance of vehicles:

[0005] In the air leakage test, inspectors can apply airflow to the sealing strip and observe whether airflow leaks out between the sealing strip and the vehicle body.

[0006] For water tightness testing, testers can wash the vehicle with high-pressure water jets or water sprayers to observe whether the sealing strips can effectively prevent water from seeping into the vehicle.

[0007] In sound testing, inspectors can use a sound source and professional equipment to measure the decibel level inside the vehicle to determine whether the sealing strip can effectively reduce the intrusion of external noise.

[0008] The above methods can usually be used in combination to comprehensively evaluate the sealing performance of door seals. However, these methods are difficult to provide quantitative and visual data, are easily affected by the subjective judgment of the inspectors, and the accuracy of the test depends on the experience of the inspectors. Furthermore, it is difficult to accurately locate the areas where the sealing performance is problematic. Summary of the Invention

[0009] In view of the above, this specification provides one or more embodiments of a vehicle door sealing performance testing method, apparatus, electronic device, and medium to solve the problems existing in the related art.

[0010] To achieve the above objectives, one or more embodiments of this specification provide the following technical solutions:

[0011] According to a first aspect of the embodiments of this specification, a method for detecting the sealing performance of a vehicle door is provided, the method comprising:

[0012] Obtain three-dimensional model data by performing a three-dimensional scan of the vehicle's body-in-white; the three-dimensional model data includes at least the door frames of the body-in-white and the three-dimensional data corresponding to the sealing strips installed on the door frames;

[0013] Using the three-dimensional model data corresponding to the door frame as a reference, the scanned three-dimensional model data is unified into the vehicle model coordinate system corresponding to the vehicle.

[0014] The cross-sections of the sealing strip at each position to be tested are determined. Based on the position data of the door corresponding to the door frame in the vehicle model coordinate system when it is in the closed state, and the position data of the sealing strip in the vehicle model coordinate system, the interference data between the door and the sealing strip at the cross-section is calculated, and the sealing performance is judged based on the interference data at the position to be tested.

[0015] According to a second aspect of the embodiments of this specification, a door sealing performance testing device is provided, the device comprising:

[0016] The acquisition module acquires three-dimensional model data obtained by performing a three-dimensional scan of the vehicle's body-in-white; the three-dimensional model data includes at least the door frames of the body-in-white and the three-dimensional data corresponding to the sealing strips installed on the door frames;

[0017] The unified module uses the three-dimensional model data corresponding to the door frame as a reference to unify the scanned three-dimensional model data into the vehicle model coordinate system corresponding to the vehicle.

[0018] The calculation module determines the cross-section of the sealing strip at each position to be detected. Based on the position data of the door corresponding to the door frame in the vehicle model coordinate system when it is in the closed state, and the position data of the sealing strip in the vehicle model coordinate system, the module calculates the interference data between the door and the sealing strip at the cross-section, and judges the sealing performance of the position to be detected based on the interference data.

[0019] According to a third aspect of the embodiments of this specification, an electronic device is provided, including a communication interface, a processor, a memory, and a bus, wherein the communication interface, the processor, and the memory are interconnected via the bus;

[0020] The memory stores machine-readable instructions, and the processor executes the above method by invoking the machine-readable instructions.

[0021] According to a fourth aspect of the embodiments of this specification, a machine-readable storage medium is provided, the machine-readable storage medium storing machine-readable instructions, which, when invoked and executed by a processor, implement the above-described method.

[0022] The technical solutions provided in the embodiments of this specification may include the following beneficial effects:

[0023] By employing the above technical solutions, and scanning the 3D data of the sealing strip and unifying it into the coordinate system of the vehicle model, the interference data between the door and the sealing strip at any cross-section corresponding to the position to be tested when the door is closed can be predicted. Sealing performance can then be tested based on this interference data. In this process, on the one hand, quantitative, visualized data can be used to determine the sealing performance of the sealing strip, avoiding the influence of subjective factors; on the other hand, the location of sealing problems can be accurately pinpointed, allowing for more targeted adjustments to the sealing performance. Attached Figure Description

[0024] Figure 1 A flowchart illustrating a method for testing the sealing performance of a vehicle door, provided as an exemplary embodiment of this specification;

[0025] Figure 2 A schematic diagram of a sealing strip installed on a door frame, provided as an exemplary embodiment of this specification;

[0026] Figure 3 This is a schematic diagram illustrating interference between a vehicle door and a sealing strip at a cross-section, provided as an exemplary embodiment of this specification.

[0027] Figure 4 A schematic diagram of a visualization chart corresponding to the interference fit in the door rotation direction, provided as an exemplary embodiment of this specification;

[0028] Figure 5 A schematic diagram of a visualization chart corresponding to overlapping areas provided for an exemplary embodiment of this specification;

[0029] Figure 6 A schematic diagram of a visualization chart corresponding to the normal direction interference provided for an exemplary embodiment of this specification;

[0030] Figure 7 A schematic diagram of the structure of an electronic device for detecting door sealing performance provided as an exemplary embodiment of this specification;

[0031] Figure 8 This is a block diagram of a door sealing detection device provided for an exemplary embodiment of this specification. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with one or more embodiments of this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of one or more embodiments of this specification as detailed in the appended claims.

[0033] It should be noted that the steps of the corresponding methods are not necessarily performed in the order shown and described in this specification in other embodiments. In some other embodiments, the methods may include more or fewer steps than described in this specification. Furthermore, a single step described in this specification may be broken down into multiple steps in other embodiments; and multiple steps described in this specification may be combined into a single step in other embodiments.

[0034] In view of this, this specification provides a technical solution that, by scanning the three-dimensional data of the sealing strip and unifying it into the coordinate system of the whole vehicle model, can predict the interference data between the door and the sealing strip at any cross-section corresponding to the position to be detected of the sealing strip when the door is closed, and perform sealing performance detection based on the interference data.

[0035] In implementation, three-dimensional model data can be obtained by performing a three-dimensional scan of the vehicle's body-in-white; the three-dimensional model data includes at least the door frame of the body-in-white and the three-dimensional data corresponding to the sealing strip installed on the door frame.

[0036] For example, the vehicle's body-in-white can be scanned using a 3D scanning device. The resulting 3D model data can include at least the door frames of the body-in-white and the 3D data corresponding to the sealing strips installed on the door frames.

[0037] Then, using the three-dimensional model data corresponding to the door frame as a reference, the scanned three-dimensional model data can be unified into the vehicle model coordinate system corresponding to the vehicle.

[0038] For example, in order to match the scanned 3D model data with the vehicle's whole model data, the 3D model data corresponding to the door frame can be used as a reference to unify the scanned 3D model data into the vehicle's whole model coordinate system, thus obtaining the 3D model data in the whole model coordinate system.

[0039] Then, the cross-section of the sealing strip at each position to be tested can be determined. Based on the position data of the door corresponding to the door frame in the vehicle model coordinate system when it is in the closed state, and the position data of the sealing strip in the vehicle model coordinate system, the interference data of the door and the sealing strip at the cross-section can be calculated, and the sealing performance can be judged based on the interference data at the position to be tested.

[0040] For example, since the sealing performance of a car door is reflected when the door is closed, it is necessary to perform interference calculations based on the position data of the door when it is closed and the corresponding position data of the sealing strip in the coordinate system of the whole vehicle model. During the calculation, the cross-section of the sealing strip at any position to be detected can be determined, and the sealing performance of the position to be detected can be judged based on the interference data of the door and the sealing strip at the cross-section.

[0041] By employing the above technical solution, and scanning the 3D data of the sealing strip and unifying it into the coordinate system of the vehicle model, the interference data between the door and the sealing strip at any cross-section corresponding to the position to be tested when the door is closed can be predicted. Sealing performance can then be tested based on this interference data. In this process, on the one hand, quantitative, visualized data can be used to determine the sealing performance of the sealing strip, avoiding the influence of subjective factors; on the other hand, the location of sealing problems can be accurately pinpointed, allowing for more targeted adjustments to the sealing performance.

[0042] The door sealing test method described in this manual will be explained in detail below with reference to the accompanying drawings.

[0043] Please see Figure 1 , Figure 1 A flowchart of a door sealing performance testing method provided for an exemplary embodiment of this specification includes the following steps:

[0044] Step 101: Obtain three-dimensional model data by performing a three-dimensional scan of the vehicle's body-in-white; the three-dimensional model data includes at least the door frame of the body-in-white and the three-dimensional data corresponding to the sealing strip installed on the door frame;

[0045] Step 102: Using the three-dimensional model data corresponding to the door frame as a reference, unify the scanned three-dimensional model data into the vehicle model coordinate system corresponding to the vehicle.

[0046] Step 103: Based on the position data of the door corresponding to the door frame in the vehicle model coordinate system when it is in the closed state, and the position data of the sealing strip in the vehicle model coordinate system, determine the cross section of the sealing strip at each position to be tested, and perform sealing test based on the data corresponding to the cross section.

[0047] In this embodiment, three-dimensional model data can be obtained by performing a three-dimensional scan of the vehicle's body-in-white.

[0048] For example, a three-dimensional scan of the vehicle's body-in-white can be performed using common measuring equipment, such as a scanner or measuring instrument, to obtain three-dimensional data including at least the door frames of the body-in-white and the sealing strips installed on the door frames.

[0049] In this embodiment, the three-dimensional model data corresponding to the door frame can be used as a reference to unify the scanned three-dimensional model data into the vehicle model coordinate system corresponding to the vehicle.

[0050] It is worth noting that the data obtained through scanning may be three-dimensional data in the device coordinate system, which is not the vehicle coordinate system. Therefore, it is necessary to unify the coordinate systems and convert the three-dimensional data in the device coordinate system to the vehicle coordinate system.

[0051] For example, since the 3D model data of the door frame already exists in the vehicle model coordinate system, the 3D model data obtained by scanning can be unified into the vehicle model coordinate system corresponding to the vehicle, based on the 3D model data corresponding to the door frame.

[0052] Of course, those skilled in the art can also use other locations as a reference to unify the coordinate system.

[0053] In this embodiment, the cross-section of the sealing strip at each position to be detected can be determined. Based on the position data of the door corresponding to the door frame in the vehicle model coordinate system when it is in the closed state, and the position data of the sealing strip in the vehicle model coordinate system, the interference data between the door and the sealing strip at the cross-section is calculated, and the sealing performance is judged based on the interference data at the position to be detected.

[0054] As mentioned above, in related technologies, the sealing performance test of the car door needs to be performed when the door is closed. However, in this solution, since a three-dimensional model is used, it is necessary to make a judgment based on the position data of the door corresponding to the door frame in the coordinate system of the whole vehicle model when the door is in the closed state.

[0055] For example, when making a judgment, for any location to be tested, the cross-section of the sealing strip at the location to be tested can be determined first. Then, by predicting the position data of the door and the sealing strip at the cross-section when the door is in the closed state, the interference data between the door and the sealing strip at the cross-section can be calculated. Then, the sealing performance of the location to be tested can be judged based on the interference data.

[0056] In one embodiment shown, multiple detection positions corresponding to the sealing strip can be determined according to the pre-divided area and the preset number.

[0057] by Figure 2 For example, Figure 2 This is a schematic diagram of a sealing strip installed on a door frame, provided as an exemplary embodiment of this specification.

[0058] like Figure 2 As shown, multiple regions can be pre-divided, and the number of locations to be inspected corresponding to each region can be set, so that the sealing of each location to be inspected can be checked during the inspection.

[0059] In one example, assuming the preset number of detection locations is 100, you can randomly select 100 detection locations on the sealing strip, or you can select 100 detection locations as evenly as possible.

[0060] In one embodiment shown, the pre-divided area includes several areas divided according to the curvature variation of the door frame; the preset quantity includes different quantities set based on the priority of sealing detection corresponding to different areas.

[0061] For example, the weatherstripping can be divided into multiple zones based on the curvature of the door frame. Figure 2 For example, the front door frame of a vehicle can be divided into the sill area, the lower right rounded corner area, the B-pillar area, the upper right rounded corner area, the roof area, the upper left rounded corner area, the A-pillar area, and the lower left rounded corner area.

[0062] The starting point for dividing the area can be either from the left or right side of the threshold; this instruction manual does not specify which.

[0063] To continue with the example, the number of locations to be tested can be set according to the sealing requirements of different areas. Generally, the higher the sealing requirements, the more locations to be tested, thereby ensuring the accuracy of the test.

[0064] In one embodiment shown, the interference data includes at least the following three dimensions:

[0065] The interference of the sealing strip in the door-screwing direction, the resulting overlap area, and the interference in the normal direction caused by the closing of the door;

[0066] Furthermore, the sealing performance of the location to be detected can be determined by assigning different weights to each dimension based on the priority corresponding to each dimension.

[0067] For example, when calculating the interference data between the car door and the weatherstripping at the cross-section, the following three dimensions of data can be calculated. These three dimensions of data are obtained by predicting the interference between the car door and the weatherstripping when the car door is in the closed position.

[0068] by Figure 3 For example, Figure 3 This is a schematic diagram illustrating interference between a car door and a sealing strip at a cross-section, provided as an exemplary embodiment of this specification.

[0069] It should be noted that the car door is connected to the body-in-white via hinges. The door can rotate around the hinges to open and close. When the door is closed, it will interfere with the sealing strip on the door frame.

[0070] by Figure 3 For example, Figure 3 When the sealing strip in the door interferes with the door, it will deform. This deformation can be used to ensure the sealing performance of the door. Therefore, the sealing performance at the test location can be predicted by the deformation at the cross-section of the test location.

[0071] like Figure 3 As shown, the interference of the sealing strip in the door screwing-in direction refers to the distance from the contact point between the door and the sealing strip to the outer edge of the sealing strip in the door screwing-in direction; the resulting overlap area refers to the area of ​​the sealing strip that is compressed and deformed due to the closing of the door; the interference of the sealing strip in the normal direction refers to the distance from the contact point to the outer edge of the sealing strip in the normal direction between the door and the sealing strip.

[0072] Continuing with the example, different priorities can be assigned to the three dimensions mentioned above. For instance, the priorities, ordered from highest to lowest, could be: interference in the screw-in direction, the resulting overlap area, and interference in the normal direction. By assigning different weights to these three dimensions, the sealing performance can be determined by scoring each dimension based on its weight during the evaluation process, and the final score can then be used to determine the sealing performance.

[0073] In one embodiment shown, a threshold corresponding to the location to be detected can be determined based on different thresholds set for different regions; and the sealing performance of the location to be detected can be determined by comparing the interference data at the cross section corresponding to the location to be detected with the threshold corresponding to the location to be detected; wherein different regions are assigned different sealing performance priorities.

[0074] For example, different sealing priorities can be set for different areas. When judging the sealing performance, the area to which the location to be tested belongs can be determined first. Then, based on the different thresholds set for areas with different priorities, the threshold corresponding to the location to be tested can be determined. Finally, the sealing performance of the location to be tested can be judged by comparing the interference data at the cross-section corresponding to the location to be tested with the threshold corresponding to the location to be tested.

[0075] In one embodiment shown, the interference data at the cross section corresponding to the location to be detected can also be visualized and output as a chart; wherein the chart includes each region and the threshold corresponding to each region; the threshold includes an upper limit value and a lower limit value.

[0076] For example, the interference data at the cross-section corresponding to the location to be tested can be visualized in the chart, making it easy for inspectors to intuitively discover the sealing performance of different locations to be tested in different regions. At the same time, the chart can also output the threshold corresponding to each region, so that inspectors can see at a glance which locations to be tested have interference data exceeding the threshold.

[0077] In addition, the above thresholds can include upper and lower limits, which can prevent the sealing strip from being too tight and making the door difficult to open.

[0078] by Figures 4-6 For example, Figure 4 This is a schematic diagram of a visualization chart corresponding to the interference fit in the door's rotating direction, provided as an exemplary embodiment of this specification. Figure 5 This is a schematic diagram of a visualization chart corresponding to overlapping areas, provided as an exemplary embodiment of this specification. Figure 6 This is a schematic diagram of a visualization chart corresponding to the normal direction interference provided for an exemplary embodiment of this specification.

[0079] like Figures 4-6 As shown, the horizontal axis of the visualization chart can be divided into multiple different regions, including the threshold region, the lower right rounded corner region, the B-pillar region, the upper right rounded corner region, the top cover region, the upper left rounded corner region, the A-pillar, and the lower left rounded corner region. Furthermore, the visualization chart can also display the threshold values ​​corresponding to these different regions; these threshold values ​​vary depending on the sealing requirements of each region.

[0080] The threshold can be an upper limit, a lower limit, or both.

[0081] Furthermore, the horizontal axis can also represent the detection locations within each different region.

[0082] Correspondingly, the vertical axis of the visualization chart can be the numerical value corresponding to the interference data. For each location to be detected, coordinate points on the chart can be determined based on the magnitude of the interference data in different dimensions calculated at the cross-section of that location, and these points can be connected.

[0083] For example, through the visualization method described above, one can... Figure 4The inspection revealed that the sealing performance of the roof area exceeded the upper limit, and the overly tight sealing strip would make the doors difficult to open. The A-pillar area showed excessive variation, and its sealing performance was generally substandard. Therefore, the sealing performance in this area was neither balanced nor met the requirements. Figure 5 Although within the threshold range, the B-pillar area shows significant fluctuations, and adjustments to the B-pillar area may be necessary depending on the stringency of the sealing requirements. Figure 6 Overall, there are no major changes, and the sealing requirements for this dimension are met.

[0084] In one embodiment shown, multiple interference data calculated from multiple scans of the body-in-white can be fitted, and the sealing performance of the location to be detected can be judged based on the fitting results.

[0085] by Figure 4 For example, two 3D scans can be performed. Based on steps 102 and 103, the interference data between the car door and the sealing strip at the cross-section can be calculated and predicted, and then visualized. Figure 4 The two lines in the figure can be further fitted to obtain a smooth curve, and then the sealing performance of each detection position can be judged based on the fitting result.

[0086] In one embodiment shown, the sealing strip on the door frame is installed by adhesive on one side of the sealing strip and by applying adhesive force to the other side of the sealing strip using a roller.

[0087] Furthermore, the adhesive force applied by the rollers when passing through different test locations can be adjusted based on the results of the sealing tests corresponding to different test locations.

[0088] For example, the side of the sealing strip that contacts the door frame can be provided with adhesive backing for bonding with the door frame. On the other side, an external force can be applied to the sealing strip using a roller to make the bonding between the sealing strip and the door frame tighter.

[0089] The magnitude of the force applied by the rollers not only affects the adhesion between the sealing strip and the door frame, but also the deformation of the sealing strip, thus impacting the sealing performance. Therefore, based on the results of the sealing performance assessment, the adhesive force applied by the rollers can be adjusted to ensure uniform and effective sealing.

[0090] By employing the above technical solutions, and scanning the 3D data of the sealing strip and unifying it into the coordinate system of the vehicle model, the interference data between the door and the sealing strip at any cross-section corresponding to the position to be tested when the door is closed can be predicted. Sealing performance can then be tested based on this interference data. In this process, on the one hand, quantitative, visualized data can be used to determine the sealing performance of the sealing strip, avoiding the influence of subjective factors; on the other hand, the location of sealing problems can be accurately pinpointed, allowing for more targeted adjustments to the sealing performance.

[0091] For details of the above implementation process, please refer to the implementation process of the corresponding steps in the above door sealing test method. For relevant parts, please refer to the description of the method implementation method. It will not be repeated here.

[0092] In an exemplary embodiment of this specification, an apparatus capable of implementing the above-described method is also provided.

[0093] Figure 7 This is a schematic structural diagram of a device provided in an exemplary embodiment. Please refer to... Figure 7 At the hardware level, the device includes a processor 702, an internal bus 704, a network interface 706, memory 708, and non-volatile memory 710, and may also include other hardware required for business operations. One or more embodiments of this specification can be implemented in software, such as the processor 702 reading the corresponding computer program from the non-volatile memory 710 into memory 708 and then running it. Of course, in addition to software implementation, one or more embodiments of this specification do not exclude other implementation methods, such as logic devices or a combination of hardware and software, etc. That is to say, the execution subject of the following processing flow is not limited to each logic unit, but can also be hardware or logic devices.

[0094] Please refer to Figure 8 In one software implementation, a door sealing detection device 800 is provided, such as... Figure 8 As shown, the device 800 includes:

[0095] The acquisition module 801 acquires three-dimensional model data obtained by performing a three-dimensional scan of the vehicle's body-in-white; the three-dimensional model data includes at least the door frame of the body-in-white and the three-dimensional data corresponding to the sealing strip installed on the door frame;

[0096] The unified module 802 uses the three-dimensional model data corresponding to the door frame as a reference to unify the scanned three-dimensional model data into the vehicle model coordinate system corresponding to the vehicle.

[0097] The calculation module 803 determines the cross-section of the sealing strip at each position to be detected. Based on the position data of the door corresponding to the door frame in the vehicle model coordinate system when it is in the closed state, and the position data of the sealing strip in the vehicle model coordinate system, it calculates the interference data between the door and the sealing strip at the cross-section, and judges the sealing performance of the position to be detected based on the interference data.

[0098] Optionally, the device 800 further includes:

[0099] The division module 804 (not shown in the figure) determines multiple detection positions corresponding to the sealing strip based on the pre-divided area and the preset quantity.

[0100] Optionally, the pre-divided areas include several areas divided according to the curvature variation of the door frame; the preset quantity includes different quantities set based on the priority of sealing detection corresponding to different areas.

[0101] Optionally, the computing module 803 further includes:

[0102] The threshold corresponding to the location to be detected is determined based on the different thresholds set for different regions;

[0103] The sealing performance of the detection location is determined by comparing the interference data at the cross-section corresponding to the detection location with the threshold corresponding to the detection location; different sealing performance priorities are set for different regions.

[0104] Optionally, the device 800 further includes:

[0105] The visualization module 805 (not shown in the figure) visualizes the interference data at the cross section corresponding to the location to be detected in the form of a chart; wherein the chart contains each region and the threshold corresponding to each region; the threshold includes an upper limit value and a lower limit value.

[0106] Optionally, the interferometric data includes at least the following three dimensions:

[0107] The interference of the sealing strip in the door-screwing direction, the resulting overlap area, and the interference in the normal direction caused by the closing of the door;

[0108] Furthermore, the computing module 803 includes:

[0109] The sealing performance of the location to be detected is determined by assigning different weights to each dimension based on the priority of each dimension.

[0110] Optionally, the computing module 803 further includes:

[0111] Based on the multiple interference data calculated from multiple scans of the white body, the sealing performance of the detection location is judged according to the fitting results.

[0112] Optionally, the sealing strip on the door frame is installed by adhesive on one side of the sealing strip and by applying adhesive force to the other side of the sealing strip using a roller.

[0113] Furthermore, the device 800 also includes:

[0114] Adjustment module 806 (not shown in the figure) adjusts the adhesive force applied by the roller when passing through different test positions based on the results of the sealing test corresponding to different test positions.

[0115] The specific implementation process of the functions and roles of each module in the above-mentioned device 800 can be found in the implementation process of the corresponding steps in the above-mentioned door sealing test method. For relevant details, please refer to the description of the method implementation method. It will not be repeated here.

[0116] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the units or modules can be selected to achieve the purpose of the solution described in this specification, depending on actual needs. Those skilled in the art can understand and implement this without any inventive effort.

[0117] The systems, devices, modules, or units described in the above embodiments can be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer, which can take the form of a personal computer, laptop computer, cellular phone, camera phone, smartphone, personal digital assistant, media player, navigation device, email sending and receiving device, game console, tablet computer, wearable device, or any combination of these devices.

[0118] In a typical configuration, a computer includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0119] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0120] Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, disk storage, quantum memory, graphene-based storage media or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0121] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0122] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0123] The terminology used in one or more embodiments of this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of one or more embodiments of this specification. The singular forms “a,” “described,” and “the” used in one or more embodiments of this specification and in the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0124] It should be understood that although the terms first, second, third, etc., may be used to describe various information in one or more embodiments of this specification, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of one or more embodiments of this specification, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "in response to a determination," or "when," or "in the event of a determination."

[0125] The above description is merely a preferred embodiment of one or more embodiments of this specification and is not intended to limit the scope of one or more embodiments of this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the protection scope of one or more embodiments of this specification.

Claims

1. A method for testing the sealing performance of a vehicle door, comprising: Obtain 3D model data obtained by 3D scanning the vehicle's body-in-white; The three-dimensional model data includes at least the door frame of the body-in-white and the three-dimensional data corresponding to the sealing strip installed on the door frame; Using the three-dimensional model data corresponding to the door frame as a reference, the scanned three-dimensional model data is unified into the vehicle model coordinate system corresponding to the vehicle. The cross-sections of the sealing strip at each location to be tested are determined. Based on the position data of the door corresponding to the door frame in the vehicle model coordinate system when it is in the closed state, and the position data of the sealing strip in the vehicle model coordinate system, the interference data between the door and the sealing strip at the cross-section is calculated. The sealing performance of the location to be tested is then judged based on the interference data. The interference data includes at least the following three dimensions: The interference of the sealing strip in the door-screwing direction, the resulting overlap area, and the interference in the normal direction caused by the closing of the door; The method of determining the sealing performance of the location to be detected based on interferometric data includes: The sealing performance of the location to be detected is determined by assigning different weights to each dimension based on the priority of each dimension.

2. The method according to claim 1, further comprising, before determining the cross-section of the sealing strip at each position to be detected: The multiple locations to be detected are determined based on the pre-divided areas and the preset quantity of the sealing strip.

3. The method according to claim 2, wherein the pre-divided area includes several areas divided according to the degree of curvature change of the door frame; the preset quantity includes different quantities set based on the priority of sealing detection corresponding to different areas.

4. The method according to claim 2, wherein the sealing determination of the location to be detected based on interferometric data includes: The threshold corresponding to the location to be detected is determined based on the different thresholds set for different regions; The sealing performance of the detection location is determined by comparing the interference data at the cross-section corresponding to the detection location with the threshold corresponding to the detection location; different sealing performance priorities are set for different regions.

5. The method according to claim 4, further comprising: The interference data at the cross section corresponding to the location to be detected is visualized in the form of a chart; wherein the chart contains each region and the threshold corresponding to each region; the threshold includes an upper limit value and a lower limit value.

6. The method according to claim 1, wherein the sealing performance of the location to be detected is determined based on interference data, comprising: Based on the multiple interference data calculated from multiple scans of the white body, the sealing performance of the detection location is judged according to the fitting results.

7. The method according to claim 1, wherein the sealing strip on the door frame is installed by adhesive on one side of the sealing strip and by applying adhesive force to the other side of the sealing strip by a roller; The method further includes: Based on the results of the sealing tests at different test locations, adjust the adhesive force applied by the rollers as they pass through different test locations.

8. A door sealing performance testing device, comprising: The acquisition module acquires 3D model data obtained by performing a 3D scan of the vehicle's body-in-white. The three-dimensional model data includes at least the door frame of the body-in-white and the three-dimensional data corresponding to the sealing strip installed on the door frame; The unified module uses the three-dimensional model data corresponding to the door frame as a reference to unify the scanned three-dimensional model data into the vehicle model coordinate system corresponding to the vehicle. The calculation module determines the cross-section of the sealing strip at each detection position. Based on the position data of the door corresponding to the door frame in the vehicle model coordinate system when it is in the closed state, and the position data of the sealing strip in the vehicle model coordinate system, it calculates the interference data between the door and the sealing strip at the cross-section, and judges the sealing performance of the detection position based on the interference data. The interference data includes at least the following three dimensions: The interference of the sealing strip in the door-screwing direction, the resulting overlap area, and the interference in the normal direction caused by the closing of the door; The method of determining the sealing performance of the location to be detected based on interferometric data includes: The sealing performance of the location to be detected is determined by assigning different weights to each dimension based on the priority of each dimension.

9. An electronic device, comprising: processor; Memory used to store processor-executable instructions; The processor implements the method as described in any one of claims 1-7 by executing the executable instructions.

10. A machine-readable storage medium having stored thereon machine-readable instructions that, when executed by a processor, implement the steps of the method as claimed in any one of claims 1-7.

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