A rearview mirror and side window spacing measurement method, system, storage medium and electronic device

Abstract

A rearview mirror and side window distance measurement method, system, storage medium and electronic device. The present application relates to the field of automatic detection technology, solves the problem of time-consuming and laborious of the existing measurement method, and can be applied to the whole vehicle wind noise performance control in the whole vehicle development process. The method comprises the following steps: S1, opening the CAS whole vehicle model; S2, identifying the corresponding parts of the rearview mirror body and the side window glass and naming; S3, obtaining the maximum and minimum values of the whole vehicle Z direction of the rearview mirror body; S4, taking the region between the maximum and minimum values obtained in step S3 as the screenshot area, and performing multiple screenshots along the plane perpendicular to the Z direction; S4, identifying the distance between the rearview mirror shell and the side window glass in the screenshot, and taking the minimum value; S5, displaying the screenshot and measurement data corresponding to the minimum value.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic detection, in particular to a rearview mirror and side window distance measurement method and system, a storage medium and an electronic device. BACKGROUND

[0002] When the automobile is running, the air flow and the automobile surface produce friction and resistance, which produces wind noise. Moreover, when the vehicle is running, the vehicle body and the surrounding gas must move. Therefore, wind noise is inevitable during the running process of the automobile.

[0003] In the design and development process of the whole vehicle, the vibration and noise department will measure and control the wind noise performance of the whole vehicle. The distance between the rearview mirror and the side window glass is an important control index. At present, the position screenshot is checked and measured manually, which is a repeated operation, time-consuming and laborious, and seriously affects the design and development efficiency of the whole vehicle. SUMMARY

[0004] In order to solve the problem of time-consuming and laborious of the existing measurement method, the present application provides a rearview mirror and side window distance measurement method, system, storage medium and electronic device.

[0005] The technical scheme of the present application is as follows:

[0006] The distance between the rearview mirror and the side window glass is obtained, and the minimum value is taken.

[0007] A rearview mirror and side window distance measurement method, comprising the following steps:

[0008] S1, opening the CAS whole vehicle model;

[0009] S2, identifying the corresponding parts of the rearview mirror body and the side window glass and naming;

[0010] S3, obtaining the maximum value and the minimum value of the whole vehicle Z direction of the rearview mirror body;

[0011] S4, taking the region between the maximum value and the minimum value obtained in step S3 as the screenshot area, and taking multiple screenshots along the plane perpendicular to the Z direction;

[0012] S5, identifying the distance between the rearview mirror shell and the side window glass in the screenshot, and taking the minimum value;

[0013] S6, displaying the screenshot and measurement data corresponding to the minimum value.

[0014] Preferably, the screenshot in step S4 is obtained by the following method:

[0015] Step 1, opening the three-dimensional data of the parts by using a three-dimensional data calling method;

[0016] Step 2, two-dimensional drawing interception is performed on the three-dimensional data of the part;

[0017] The method for intercepting the two-dimensional drawing of the three-dimensional data of the part includes an overall drawing interception method, a selected drawing interception method and a reference part drawing interception method;

[0018] The overall drawing interception method specifically includes:

[0019] The positioning module separately gives the two end extreme points of the three-dimensional data of the part;

[0020] The direction module determines the drawing interception direction of the two-dimensional drawing of the three-dimensional data of the part;

[0021] The quantification module determines the drawing interception deflection angle of the two-dimensional drawing of the three-dimensional data of the part;

[0022] According to the number of three-dimensional data of the part that needs to be intercepted, the quantification module divides the three-dimensional data of the part into two-dimensional sections evenly;

[0023] After the range module selects the interception range of the two-dimensional drawing of the three-dimensional data of the part, the two-dimensional drawing of the three-dimensional data of the part is intercepted.

[0024] Preferably, the number of drawings in step S4 is 15-30.

[0025] Preferably, the number of drawings in step S4 is 20.

[0026] Preferably, the plurality of drawings in step S4 are equally spaced.

[0027] A rearview mirror and side window spacing measurement system is used to implement the rearview mirror and side window spacing measurement method as described above.

[0028] A computer readable storage medium is used to store a computer program, and the computer program executes the rearview mirror and side window spacing measurement method as described above.

[0029] An electronic device includes a processor and a memory, wherein the processor and the memory complete mutual communication through a communication bus; the memory is used to store a computer program; and the processor is used to execute the computer program stored on the memory to implement the rearview mirror and side window spacing measurement method as described above.

[0030] Compared with the prior art, the present application solves the problem of time-consuming and laborious of the prior measurement method, and has the following specific beneficial effects:

[0031] The present application utilizes system automatic measurement instead of manual measurement, realizes automation, obtains the minimum distance between two parts by automatically dividing and taking pictures along the Z direction of the whole vehicle, and reduces the process of manual selection of position, picture checking and measurement by users, thereby greatly improving the measurement efficiency while ensuring the measurement accuracy, and effectively supporting project development. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The rearview mirror and side window spacing measurement result schematic diagram described in Embodiment 1. DETAILED DESCRIPTION

[0033] In order to make the technical solutions of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings of the specification of the present application. It should be noted that the following embodiments are only used to better understand the technical solutions of the present application, and should not be understood as a limitation of the present application.

[0034] Embodiment 1.

[0035] The present embodiment provides a rearview mirror and side window spacing measurement method, comprising the following steps:

[0036] S1, opening the CAS whole vehicle model;

[0037] S2, identifying the corresponding parts of the rearview mirror body and the side window glass and naming;

[0038] S3, obtaining the maximum value and the minimum value of the whole vehicle Z direction of the rearview mirror body;

[0039] S4, taking the region between the maximum value and the minimum value obtained in step S3 as the picture taking region, and taking multiple pictures along the plane perpendicular to the Z direction;

[0040] S5, identifying the distance between the rearview mirror shell and the side window glass in the picture, and taking the minimum value;

[0041] S6, displaying the picture and measurement data corresponding to the minimum value.

[0042] The present embodiment utilizes system automatic measurement instead of manual measurement, realizes automation, obtains the minimum distance between two parts by automatically dividing and taking pictures along the Z direction of the whole vehicle, and reduces the process of manual selection of position, picture checking and measurement by users, thereby greatly improving the measurement efficiency while ensuring the measurement accuracy, and effectively supporting project development.

[0043] Taking a certain vehicle model as an example, the method described in the present embodiment is applied to measure the spacing between the rearview mirror and the side window, and the measurement efficiency is obviously improved compared with manual measurement, and the measurement picture result is shown in Figure 1 The measurement result is the same as manual measurement, and the measurement accuracy is consistent.

[0044] Embodiment 2.

[0045] This embodiment is a further illustration of embodiment 1, and the number of screenshots in step S4 is 15-30.

[0046] Step 1: Open the part three-dimensional data by using the three-dimensional data calling method;

[0047] Step 2: Take two-dimensional screenshots of the part three-dimensional data;

[0048] The method for taking two-dimensional screenshots of the part three-dimensional data includes the whole screenshot method, the selected screenshot method, and the reference part screenshot method;

[0049] The whole screenshot method specifically includes:

[0050] The positioning module respectively gives the two extreme points of the part three-dimensional data;

[0051] The direction module determines the screenshot direction of the two-dimensional graph of the part three-dimensional data;

[0052] The quantification module determines the screenshot deflection angle of the two-dimensional graph of the part three-dimensional data;

[0053] According to the number of part three-dimensional data that needs to be taken, the quantification module divides the part three-dimensional data into two-dimensional sections evenly;

[0054] After the range module selects the taking range of the two-dimensional graph of the part three-dimensional data, the two-dimensional graph of the part three-dimensional data is taken.

[0055] Embodiment 3.

[0056] This embodiment is a further illustration of embodiment 1, and the number of screenshots in step S4 is 15-30.

[0057] Embodiment 4.

[0058] This embodiment is a further illustration of embodiment 1, and the number of screenshots in step S4 is 20.

[0059] Embodiment 5.

[0060] This embodiment is a further illustration of embodiment 1, and the multiple screenshots in step S4 are equally spaced.

[0061] Embodiment 6.

[0062] The embodiment provides a rearview mirror and side window spacing measurement system for realizing the rearview mirror and side window spacing measurement method as described in any one of embodiments 1-5.

[0063] Embodiment 7.

[0064] The embodiment provides a computer readable storage medium for storing a computer program, the computer program performing the rearview mirror and side window spacing measurement method according to any one of embodiments 1-5.

[0065] Embodiment 8.

[0066] The embodiment provides an electronic device, including a processor and a memory, wherein the processor and the memory complete mutual communication through a communication bus; the memory is used for storing a computer program; and the processor is used for executing the computer program stored on the memory to realize the rearview mirror and side window spacing measurement method according to any one of embodiments 1-5.

[0067] The memory in the embodiment of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. The non-volatile memory can be a read only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example, and not limitation, many forms of RAM can be used, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It is to be noted that the memory of the method described in the present application is intended to include, but not be limited to, these and any other suitable types of memory.

[0068] In the above embodiments, all or part of the methods can be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the methods can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media sets. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as high-density digital video disc (DVD)), or semiconductor media (such as solid state disc (SSD)), etc.

[0069] In the implementation process, each step of the above method can be completed by integrated logic circuit of hardware in the processor or instruction in the form of software. The steps of the method disclosed in the embodiments of the present application can be directly embodied as hardware processor execution, or executed by combination of hardware and software modules in the processor. The software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0070] It should be noted that the processor in the embodiments of the present application can be an integrated circuit chip with a signal processing capability. In the implementation process, the steps of the above method embodiments can be completed by an integrated logic circuit or an instruction in the form of software in the processor. The processor mentioned above can be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution. The software module can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register or other mature storage medium in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and combines the hardware to complete the steps of the above method.

Claims

1. A method for measuring the distance between a rearview mirror and a side window, characterized in that, Includes the following steps: S1. Open the CAS vehicle model; S2. Identify and name the corresponding components of the rearview mirror body and the side window glass; S3. Obtain the maximum and minimum Z-axis values ​​of the rearview mirror body of the entire vehicle; S4. Using the region between the maximum and minimum values ​​obtained in step S3 as the screenshot area, take multiple screenshots along a plane perpendicular to the Z direction. S5. Identify the distance between the rearview mirror housing and the side window glass in the screenshot, and take the minimum value; S6. Display the screenshot and measurement data corresponding to the minimum value; The screenshot in step S4 was obtained using the following method: Step 1: Open the 3D data of the part using the 3D data retrieval method; Step 2: Extract a 2D image from the 3D data of the part; The methods for extracting two-dimensional images from three-dimensional data of parts include the overall screenshot method, the selection screenshot method, and the reference part screenshot method. The overall screenshot method is as follows: The positioning module provides the extreme points at both ends of the part's three-dimensional data; The orientation module determines the orientation of the screenshot of the 2D image of the part's 3D data; The quantization module determines the screenshot deflection angle of the 2D image of the part's 3D data; Based on the number of sections to be extracted from the 3D data of the part, the quantization module divides the 3D data of the part into 2D sections on an average basis. After selecting the cut-off range of the 2D image of the 3D data of the part using the range module, a 2D image of the 3D data of the part is cut out.

2. The method for measuring the distance between the rearview mirror and the side window according to claim 1, characterized in that, The number of screenshots mentioned in step S4 is 15-30.

3. The method for measuring the distance between the rearview mirror and the side window according to claim 1, characterized in that, The number of screenshots mentioned in step S4 is 20.

4. The method for measuring the distance between the rearview mirror and the side window according to claim 1, characterized in that, The multiple screenshots mentioned in step S4 are distributed at equal intervals.

5. A system for measuring the distance between a rearview mirror and a side window, characterized in that, Used to implement the method for measuring the distance between the rearview mirror and the side window as described in any one of claims 1-4.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program that executes the rearview mirror and side window distance measurement method as described in any one of claims 1-4.

7. An electronic device, characterized in that, It includes a processor and a memory, wherein the processor and the memory communicate with each other through a communication bus; the memory is used to store computer programs; the processor is used to execute the computer programs stored in the memory to implement the rearview mirror and side window distance measurement method as described in any one of claims 1-4.

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