Visual field checking method for outside rear-view mirror

Abstract

The invention discloses an outside rear-view mirror visual field checking method. The method comprises the following steps: creating part files of a rear-view mirror surface and the ground in CATIA (Computer-graphics Aided Three-dimensional Interactive Application) software; running the macro file, inputting parameters according to a pop-up window prompt, selecting a rearview mirror surface and the ground according to the prompt, and waiting for a result; and checking the visual field of the outside rear-view mirror according to an output result of the macro file. According to the outside rear-view mirror visual field checking method, outside rear-view mirror visual field checking can be automatically executed by utilizing a CATIA macro command and establishing parameters, compared with a traditional mode of manually and reversely simulating and drawing the sight line of a driver observing a regulation area through the outside rear-view mirror one by one, each checking step does not need to be made step by step, the total consumed time can be optimized by 90% or above, and the checking efficiency is greatly improved. Checking time is greatly shortened, and working hours are saved; and meanwhile, by inputting prompts, checking personnel can know parameters required in the checking process, and the efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of field of view verification technology for exterior rearview mirrors, and more specifically, to a method for verifying the field of view of exterior rearview mirrors. Background Technology

[0002] In automotive design, the driver's field of vision is a factor that directly affects the use and safety of the vehicle. Since the driver's field of vision is closely related to the vehicle body design structure, it is very important to ensure the driver's field of vision through reasonable vehicle body design.

[0003] Currently, the driver's field of vision for observing the regulated area through the exterior rearview mirror is manually simulated. This typically requires dozens or even hundreds of simulation lines, making the operation complex and time-consuming.

[0004] Therefore, there is an urgent need for a method to verify the field of view of the exterior rearview mirror. Summary of the Invention

[0005] The purpose of this invention is to provide a method for verifying the field of view of an exterior rearview mirror, so as to solve the problems in the prior art. It can automatically perform the verification of the field of view of the exterior rearview mirror by using CATIA macro commands and establishing parameters, which greatly shortens the verification time and saves labor time.

[0006] This invention provides a method for verifying the field of view of an exterior rearview mirror, comprising:

[0007] Create part files for the rearview mirror mirror and the ground in CATIA software;

[0008] Run the macro file, enter the parameters as prompted in the pop-up window, and select the rearview mirror surface and the ground as prompted, then wait for the result;

[0009] The field of view of the exterior rearview mirror is checked based on the output of the macro file.

[0010] The rearview mirror field of view verification method described above preferably includes, in the case of, creating part files for the rearview mirror mirror surface and the ground in CATIA software, the following:

[0011] Create a new part file in CATIA software;

[0012] Import the rearview mirror surface and the ground into a part file, wherein both the rearview mirror surface and the ground have undergone parameter breaking processing.

[0013] The rearview mirror field of view calibration method described above preferably includes the following steps: running the macro file, inputting parameters according to the pop-up prompts, selecting the rearview mirror surface and the ground according to the prompts, and waiting for the results.

[0014] Run the macro file and enter the rearview mirror type, vehicle width, and R-point coordinates as prompted in the pop-up window.

[0015] Determine the legal field of vision range based on the type of rearview mirror, vehicle width, and R-point coordinates;

[0016] Follow the prompts in the lower left corner of the software to select the rearview mirror and the ground, and wait for the results.

[0017] The rearview mirror field of view calibration method described above preferably includes the following: Running the macro file, according to the pop-up prompts, inputting the rearview mirror type, vehicle width, and R-point coordinates, including:

[0018] The verification personnel are prompted to enter the rearview mirror type, vehicle width, and R-point coordinates in sequence;

[0019] Calculate the eye point coordinates based on the coordinates of point R;

[0020] Create an eye point based on the eye point coordinates.

[0021] The rearview mirror field of view calibration method described above, preferably, includes determining the regulatory field of view range based on the rearview mirror type, vehicle width, and R-point coordinates, comprising:

[0022] Convert the range of rearview mirror type, vehicle width, and R-point coordinates required by regulations into functions;

[0023] Substitute the required rearview mirror type, vehicle width, and R-point coordinates into the function;

[0024] Calculate the boundary point coordinates based on the rearview mirror type, vehicle width, and the function corresponding to the coordinates of point R;

[0025] Connect the coordinates of the boundary points with straight lines to obtain the scope of the regulations.

[0026] The rearview mirror field of view verification method described above, preferably, involves selecting the rearview mirror surface and the ground sequentially according to the prompt in the lower left corner of the software and waiting for the results, including:

[0027] The software prompts the checker to select the rearview mirror surface and the ground in the lower left corner;

[0028] Extract the edge line of the rearview mirror;

[0029] Take the incident point on the edge line according to the preset ratio, and create the normal of the rearview mirror surface. Connect the incident point to the eye point to form the incident ray. Format the incident ray symmetrically about the normal to generate the reflection ray. Intersect the reflection ray with the ground to generate the field of view point.

[0030] If the number of field points is less than the preset threshold, the operation of generating field points is repeated, and the proportion of points taken each time is increased by a preset amount.

[0031] If the number of field points reaches a preset threshold, the actual field of view can be determined.

[0032] In the rearview mirror field of view calibration method described above, preferably, the preset ratio is 1 / 100, the preset amplitude is 1 / 100, and the preset quantity threshold is 100.

[0033] The rearview mirror field of view verification method described above, preferably, includes the following steps: Verifying the rearview mirror field of view based on the output of the macro file.

[0034] Macro file output: the required field of view versus the actual field of view;

[0035] The checkers determine whether the output of the macro file meets the requirements.

[0036] This invention provides a method for verifying the field of view of an exterior rearview mirror. Utilizing CATIA macro commands, the method can automatically perform the verification of the exterior rearview mirror's field of view by establishing parameters. Compared with the traditional method of manually reversing and simulating the driver's line of sight through the exterior rearview mirror to observe the regulatory area, this method eliminates the need to create each verification step step by step, optimizing the total time consumption by more than 90%, greatly shortening the verification time and saving labor time. At the same time, input prompts help verification personnel understand the parameters required for the verification process, improving efficiency. Attached Figure Description

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described below with reference to the accompanying drawings, wherein:

[0038] Figure 1 A flowchart illustrating an embodiment of the rearview mirror field of view verification method provided by the present invention;

[0039] Figure 2 A logic diagram of an embodiment of the rearview mirror field of view verification method provided by the present invention;

[0040] Figure 3 This is a schematic diagram showing the verification results for different vehicle models. Detailed Implementation

[0041] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0042] The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as “including” or “contains” mean that the element preceding the term encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as “above” and “below” are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0043] In this disclosure, when a specific component is described as being located between a first component and a second component, an intermediary component may or may not be present between the specific component and the first or second component. When a specific component is described as connecting to other components, the specific component may be directly connected to the other components without having an intermediary component, or it may not be directly connected to the other components but may have an intermediary component.

[0044] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0045] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0046] like Figure 1 and Figure 2 As shown, the rearview mirror field of view verification method provided in this embodiment includes the following steps in actual implementation:

[0047] Step S1: Create part files for the rearview mirror and the ground in CATIA software.

[0048] In one embodiment of the rearview mirror field of view verification method of the present invention, step S1 may specifically include:

[0049] Step S11: Create a new part file in CATIA software.

[0050] Step S12: Import the rearview mirror and the ground into a part file, wherein the rearview mirror and the ground have both undergone parameter breaking processing.

[0051] Step S2: Run the macro file, enter the parameters according to the pop-up prompts, and select the rearview mirror surface and the ground according to the prompts, and wait for the results.

[0052] In one embodiment of the rearview mirror field of view verification method of the present invention, step S2 may specifically include:

[0053] Step S21: Run the macro file and enter the rearview mirror type, vehicle width, and R-point coordinates according to the pop-up prompts.

[0054] Among them, the coordinates of point R refer to the R point on the human body, which includes the X coordinate, Y coordinate, and Z coordinate of point R.

[0055] In one embodiment of the rearview mirror field of view verification method of the present invention, step S21 may specifically include:

[0056] Step S211: The verification personnel are prompted to input the rearview mirror type, vehicle width, and R-point coordinates in sequence.

[0057] Step S212: Calculate the eye point coordinates based on the coordinates of point R.

[0058] Step S213: Create an eye point based on the eye point coordinates.

[0059] Step S22: Determine the legal field of vision range based on the type of rearview mirror, vehicle width, and R-point coordinates.

[0060] In one embodiment of the rearview mirror field of view verification method of the present invention, step S22 may specifically include:

[0061] Step S221: Convert the range of rearview mirror type, vehicle width, and R-point coordinates required by regulations into functions.

[0062] Step S222: Substitute the required rearview mirror type, vehicle width, and R-point coordinates into the function.

[0063] Step S223: Calculate the boundary point coordinates based on the function corresponding to the rearview mirror type, vehicle width, and R-point coordinates.

[0064] Step S224: Connect the coordinates of the boundary points with straight lines to obtain the legal field of view.

[0065] By going through steps S221-S224, the different regulatory field of view ranges corresponding to Class II and Class III exterior rearview mirrors can be obtained.

[0066] Step S23: Select the rearview mirror and the ground in sequence according to the prompt in the lower left corner of the software, and wait for the result.

[0067] In one embodiment of the rearview mirror field of view verification method of the present invention, step S23 may specifically include:

[0068] Step S231: The software prompts the checker to select the rearview mirror surface and the ground in the lower left corner.

[0069] Step S232: Extract the edge line of the rearview mirror.

[0070] Step S233: Take the incident point on the edge line according to the preset ratio, and create the normal of the rearview mirror surface. Connect the incident point to the eye point to form the incident ray. Format the incident ray symmetrically about the normal to generate the reflection ray. Intersect the reflection ray with the ground to generate the field of view point.

[0071] The preset ratio is, for example, 1 / 100, and the preset amplitude is, for example, 1 / 100.

[0072] Step S234: If the number of field points is less than the preset threshold, the operation of generating field points is repeated, and the proportion of points taken each time is increased by a preset amount.

[0073] The preset quantity threshold is, for example, 100. It should be noted that the present invention does not specifically limit the preset ratio, preset amplitude, or preset quantity threshold.

[0074] Step S235: If the number of field points reaches the preset threshold, the actual field of view can be seen.

[0075] Step S3: Verify the field of view of the exterior rearview mirror based on the output of the macro file.

[0076] In one embodiment of the rearview mirror field of view verification method of the present invention, step S3 may specifically include:

[0077] Step S31: Output the macro file according to the required field of view and the actual field of view.

[0078] Step S32: The checker determines whether the output of the macro file meets the requirements.

[0079] Figure 3 The verification results for different vehicle models are shown. This invention creates a macro file based on CATIA, prompting for the required inputs during the rearview mirror field of view verification process, and automatically calculating the corresponding regulatory requirements and the actual field of view. This facilitates verification personnel in judging the compliance of the rearview mirror field of view. The operation is simple, time-saving, and can be easily mastered by new employees. This invention uses macro commands, allowing the macro file to be shared with others. Moreover, each step in the verification process has corresponding prompts, making the operation simple.

[0080] The rearview mirror field of view verification method provided in this invention utilizes CATIA macro commands to automatically perform rearview mirror field of view verification by establishing parameters. Compared with the traditional manual reverse simulation drawing of the driver's line of sight through the rearview mirror to observe the regulatory area, it does not require step-by-step verification, and the total time can be optimized by more than 90%, greatly shortening the verification time and saving labor time. At the same time, through input prompts, the verification personnel understand the parameters required for the verification process, improving efficiency.

[0081] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0082] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A method of calibrating the field of view of an exterior mirror, characterized in that include: Create part files for the rearview mirror mirror and the ground in CATIA software; Run the macro file, enter the parameters as prompted in the pop-up window, and select the rearview mirror surface and the ground as prompted, then wait for the result; The field of view of the exterior rearview mirror is checked based on the output of the macro file.

2. The mirror field checking method according to claim 1, wherein The process of creating the rearview mirror mirror and ground part files in CATIA software includes: Create a new part file in CATIA software; Import the rearview mirror surface and the ground into a part file, wherein both the rearview mirror surface and the ground have undergone parameter breaking processing.

3. The mirror field checking method according to claim 1, wherein The process of running the macro file involves inputting parameters according to the pop-up prompts, selecting the rearview mirror surface and the ground as prompted, and waiting for the results, including: Run the macro file and enter the rearview mirror type, vehicle width, and R-point coordinates as prompted in the pop-up window. Determine the legal field of vision range based on the type of rearview mirror, vehicle width, and R-point coordinates; Follow the prompts in the lower left corner of the software to select the rearview mirror and the ground, and wait for the results.

4. The mirror field checking method according to claim 3, wherein The macro file is executed by inputting the rearview mirror type, vehicle width, and R-point coordinates as prompted by the pop-up window, including: The verification personnel are prompted to enter the rearview mirror type, vehicle width, and R-point coordinates in sequence; Calculate the eye point coordinates based on the coordinates of point R; Create an eye point based on the eye point coordinates.

5. The mirror field checking method according to claim 3, wherein The determination of the legal field of vision range based on the rearview mirror type, vehicle width, and R-point coordinates includes: Convert the range of rearview mirror type, vehicle width, and R-point coordinates required by regulations into functions; Substitute the required rearview mirror type, vehicle width, and R-point coordinates into the function; Calculate the boundary point coordinates based on the rearview mirror type, vehicle width, and the function corresponding to the coordinates of point R; Connect the coordinates of the boundary points with straight lines to obtain the scope of the regulations.

6. The mirror field check method according to claim 3, wherein The process involves selecting the rearview mirror and the ground in sequence according to the prompts in the lower left corner of the software, and then waiting for the results, including: The software prompts the checker to select the rearview mirror surface and the ground in the lower left corner; Extract the edge line of the rearview mirror; Take the incident point on the edge line according to the preset ratio, and create the normal of the rearview mirror surface. Connect the incident point to the eye point to form the incident ray. Format the incident ray symmetrically about the normal to generate the reflection ray. Intersect the reflection ray with the ground to generate the field of view point. If the number of field points is less than the preset threshold, the operation of generating field points is repeated, and the proportion of points taken each time is increased by a preset amount. If the number of field points reaches a preset threshold, the actual field of view can be determined.

7. The mirror field check method according to claim 6, wherein The preset ratio is 1 / 100, the preset amplitude is 1 / 100, and the preset quantity threshold is 100.

8. The mirror field check method according to claim 1, wherein The step of verifying the field of view of the exterior rearview mirror based on the output of the macro file includes: Macro file output: the required field of view versus the actual field of view; The checkers determine whether the output of the macro file meets the requirements.

Images