CN114969969A - Method and device for determining VIN code area of front windshield - Google Patents

Abstract

The invention discloses a method and equipment for determining a VIN code area of a front windshield, which are applied to the field of vehicle design and comprise the following steps: creating a universal data template based on CATIA software; defining a three-dimensional plane based on a universal data template and establishing a part coordinate system of a front windshield position, wherein the part coordinate system is consistent with a whole vehicle coordinate system, and the front windshield position comprises front windshield glass and a part geometry body related to the front windshield glass; under a part coordinate system of a front windshield position, constructing an ergonomic model of an automobile driver based on a universal data template, and determining an upper boundary line of a VIN code area of the front windshield based on the constructed ergonomic model; and determining the lower boundary line of the VIN code area of the front windshield according to the dimension chain of the front windshield and the geometric bodies of the related parts, and defining the VIN code area of the front windshield by the upper boundary line and the lower boundary line. The working efficiency of determining the VIN code area engineering boundary of the front windshield is improved through the method and the device.

Description

Method and device for determining VIN code area of front windshield

Technical Field

The invention relates to the field of vehicle design, in particular to a method and equipment for determining a VIN code area of a front windshield.

Background

The VIN (Vehicle Identification Number), also called a Vehicle frame Number, is a unique identifier for correctly identifying a Vehicle type, and is very important for correct diagnosis and maintenance. Generally, a VIN code sticker is pasted on the lower left corner area of the front windshield of the automobile.

At present, the factory assembly can expose before and enclose the panel beating when pasting the VIN sign indicating number on preceding windshield, still can have the problem of pasting off normal and rotation.

Disclosure of Invention

Based on the technical problems in the prior art, the embodiment of the invention provides a method and a device for determining a VIN code area of a front windshield, so that the VIN code pasting position is more accurate.

In a first aspect, an embodiment of the present invention provides a method for determining a VIN code area of a front windshield, including:

creating a universal data template based on CATIA software;

defining a three-dimensional plane based on the universal data template and establishing a part coordinate system of a front windshield position, wherein the part coordinate system is consistent with a whole vehicle coordinate system, and the front windshield position comprises front windshield glass and a part geometry body related to the front windshield glass;

under the part coordinate system of the front windshield position, constructing an ergonomic model of an automobile driver based on the universal data template, and determining an upper boundary line of a VIN code area of the front windshield based on the constructed ergonomic model;

determining a lower boundary line of the front windshield VIN code area according to a dimension chain of the front windshield glass and the related part geometry thereof, and defining the front windshield VIN code area by the upper boundary line and the lower boundary line.

Optionally, after the front windshield VIN code area is defined by the upper boundary line and the lower boundary line, the method further includes:

defining a VIN code font of a VIN code sticker, wherein the VIN code sticker is used for being pasted in the front windshield VIN code area;

determining the size of the VIN code sticker according to the upper boundary line and the lower boundary line of the VIN code area of the front windshield;

the VIN code sticker comprises a VIN code display area with the same size as that of the VIN code area of the front windshield and a blank area surrounding the VIN code display area, wherein the color of the blank area is the same as that of the black edge area of the front windshield, so that the VIN code sticker shields a front wall metal plate exposed by a vehicle body when being stuck to the position of the front windshield.

Optionally, the length and width of the VIN code sticker is 90 × 20mm, wherein the length is along the width direction of the vehicle body.

Optionally, the method further comprises: and a line limiting mode is adopted, a limiting mark is formed in a front windshield VIN code area defined by the upper boundary line and the lower boundary line, and the limiting mark is used for limiting the reference in the horizontal direction and the reference in the vertical direction when the VIN code sticker is pasted on the front windshield VIN code area.

Optionally, the common data template created by the CATIA software includes a plurality of different data files:

the system comprises a basic module, an input module, an output module, a working module, a label set and a measurement data file which are created aiming at the position of a front windshield.

Optionally, the defining a three-dimensional plane and establishing a part coordinate system of a front windshield position based on the universal data template includes:

creating three orthogonal planes as an XY plane, a YZ plane and an XZ plane in the basic module;

generating a new part coordinate dataset at the base module, the new part coordinate dataset comprising coordinate elements of a plurality of different face calibration points at a front windshield location;

carrying out element type homogenization treatment on coordinate elements in the new part coordinate data set and coordinate elements in a pre-established finished automobile coordinate set to obtain a coordinate system transformation matrix;

and according to the coordinate system transformation matrix and the element type homogenization and inverse processing process, obtaining a part coordinate system of the front windshield position consistent with the whole vehicle coordinate system.

Optionally, the building an ergonomic model of the driver of the automobile based on the generic data template in the part coordinate system of the front windshield position includes:

the input module obtains driving position size data required by ergonomic model construction and seating height sample data of a driver crowd;

determining the position coordinates of the datum points constructed by the ergonomic model;

the working module creates a three-dimensional human body model of the driver crowd based on the reference point position coordinates, the driving position size data and the sitting height sample data of the driver crowd, and creates an eye ellipse model of the driver crowd based on the three-dimensional human body model.

Optionally, the determining an upper boundary line of a front windshield VIN code region based on the constructed ergonomic model comprises:

determining a tangent line of the eye ellipse model;

determining the glass black edge of the front windshield glass according to the vehicle type;

and defining a connecting line formed by the lower tangent line and the glass black edge as an upper boundary line of the VIN code area of the front windshield.

Optionally, the determining a lower boundary line of the VIN code area of the front windshield according to a dimension chain of the front windshield and the related part geometry thereof includes:

forming the size chain according to the size of the front windshield glass and the size of each part geometry overlapped with the front windshield glass, wherein each part geometry overlapped with the front windshield glass comprises a front wall sheet metal of a vehicle body, an inner instrument panel and a ventilation cover plate;

and determining the lower boundary line of the front windshield VIN code area according to the size chain.

In a second aspect, an embodiment of the present invention provides a computer device, including: a memory, a processor and a program stored on the memory and executable on the processor, the processor implementing the method according to any one of the embodiments of the first aspect when executing the program.

One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

according to the embodiment of the invention, the ergonomic model is constructed based on CATIA software, the upper boundary line of the VIN code area of the front windshield is determined based on the constructed ergonomic model, and the upper boundary line of the VIN code area of the front windshield is determined based on the size chain of the front windshield and the related part geometry, so that the number of changed iterations can be reduced, and further, the working efficiency of determining the VIN code area engineering boundary of the front windshield is improved.

Further, through the size of having changed VIN sign indicating number sticker to the problem of the white panel beating is revealed to windscreen VIN sign indicating number before having solved, the pleasing to the eye degree of windscreen VIN sign indicating number has been improved.

Furthermore, by forming a limiting mark in a defined front windshield VIN code area, the problems of deviation, rotation and the like during factory assembly and pasting can be solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a flowchart of a method for determining a VIN code area of a front windshield according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a three-dimensional human body model and an eye ellipse model in an embodiment of the invention;

FIG. 3 is a dimensional chain of a front windshield and associated components in an embodiment of the invention;

fig. 4A is a schematic size diagram of a VIN code sticker in the prior art;

fig. 4B is a schematic size diagram of a VIN code sticker in an embodiment of the invention;

fig. 5 is a schematic diagram of a position-limited identification of a VIN code area of a front windshield according to an embodiment of the invention.

Detailed Description

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

First, it is stated that the term "and/or" appearing herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Referring to fig. 1, an embodiment of the present invention provides a method for determining a windshield VIN code area, including the following steps:

and S101, creating a universal data template based on CATIA software.

Specifically, a plurality of different data files are created in CATIA PART format by the CATIA software. A plurality of different data files as follows: the system comprises a BASIC module (BASIC) for front windshield position creation, an INPUT module (INPUT), an OUTPUT module (OUTPUT), a WORK module (WORK), a label set and a measurement data file.

S102, defining a three-dimensional plane based on a universal data template and establishing a part coordinate system of a front windshield position, wherein the part coordinate system of the front windshield position is consistent with a whole vehicle coordinate system, and the front windshield position comprises front windshield glass and relevant part geometries.

In particular, with reference to fig. 3, the part geometries associated with the front windscreen include the various part geometries overlapping the front windscreen, such as: the automobile front wall metal plate, the automobile IP (instrument panel in the automobile), the ventilation cover plate, the wiper shaft and the like.

In step S102, the three-dimensional plane defined based on the generic data template specifically includes: three orthogonal planes created at the base module: XY plane, YZ plane, and XZ plane.

In step S102, a part coordinate system of the front windshield position is established based on the universal data template, which specifically includes: generating a new part coordinate dataset at the base module, the new part coordinate dataset comprising coordinate elements of a plurality of different face calibration points at a front windshield location; carrying out element type homogenization treatment on coordinate elements in the new part coordinate data set and coordinate elements in a pre-established finished automobile coordinate set to obtain a coordinate system transformation matrix; and homogenizing the inverse processing process according to the coordinate system transformation matrix and the element types, and enabling the obtained part coordinate system of the position of the front windshield to be consistent with the whole vehicle coordinate system.

Referring to fig. 3, a transparent window is formed in a black edge area of a lower right corner of the front windshield, and a front windshield VIN code area is an area facing the transparent window on the front windshield on a front wall metal plate of the vehicle body, so that VIN codes on the VIN code sticker pasted on the front windshield VIN code area can be seen through the transparent window of the front windshield. Or the VIN code area of the windshield is the black edge area of the lower right corner of the front windshield. In order to ensure that the VIN codes pasted on the VIN code sticker in the VIN code area of the front windshield are visible. The upper and lower boundary lines of the front windshield VIN code area need to be determined to determine the front windshield VIN code area which can be used for pasting the VIN code sticker.

S103, under the part coordinate system of the front windshield position, constructing an ergonomic model of an automobile driver based on the universal data template, and determining the upper boundary line of the VIN code area of the front windshield based on the constructed ergonomic model.

S1031: and acquiring driving position size data required by the ergonomic model construction and seating height sample data of a driver crowd by the input module.

Specifically, the sitting height sample data of the driver crowd refers to sitting height sample data of a crowd set which is collected and has a certain proportion of men and women in a certain target height range (for example, the height is in a range of 150 cm-190 cm).

S1032: the position coordinates of the reference points constructed by the ergonomic model are determined by the input module.

It should be noted that, referring to fig. 2, the reference point position coordinate refers to a connecting center point (i.e., H-point coordinate) of the human trunk and the thighs, and on the vehicle body layout, the H-point is a reference point for constructing an ergonomic model positioned in a human sitting posture.

S1033: and a working module creates a three-dimensional human body model of the driver crowd under a part coordinate system of the front windshield position based on the reference point position coordinate, the driving position size data and the sitting height sample data of the driver crowd, and creates an eye ellipse model of the driver crowd based on the three-dimensional human body model. Wherein the created three-dimensional human body model and the eye ellipse model are shown with reference to fig. 2.

After the eye ellipse model is created, step S1034 is performed: the tangent line of the eye ellipse model is determined. Specifically, the undercut line determined from the eye ellipse model is shown with reference to FIG. 2.

S1035: and determining the glass black edge of the front windshield according to the vehicle type.

The lower view lines of different vehicle types are defined, and the glass black edge of the front windshield glass is determined according to the lower view lines defined by the vehicle types, as shown in fig. 2, the glass black edge of the front windshield glass can be determined according to the lower view lines defined by the vehicle types. The glass black edge is a boundary edge between a black edge area and a transparent area of the front windshield.

S1036: and a connecting line formed by the lower tangent line and the glass black edge is defined as an upper boundary line of the VIN code area of the front windshield.

It should be noted that the upper boundary line of the front windshield VIN code area is the uppermost position where the VIN code is pasted, that is, the VIN code needs to be below the upper boundary line and cannot exceed the upper boundary line, so that the VIN code cannot be seen at the position of the driver, and the sight of the driver cannot be affected.

S104, determining a lower boundary line of the VIN code area of the front windshield according to the size chain of the front windshield and the geometric bodies of the related parts of the front windshield, and defining the VIN code area of the front windshield by the upper boundary line and the lower boundary line.

The upper boundary line of the VIN code area of the front windshield is the lowest position where the VIN code is pasted, i.e. the VIN code needs to be above the upper boundary line and cannot exceed the lower boundary line.

Referring to fig. 3, the dimensional chain is formed according to the dimensions of the windshield and the dimensions of the geometry of the various parts overlapping the windshield; and determining the lower boundary line of the front windshield VIN code area according to the size chain.

Referring to fig. 3, the size of the front windshield glass includes the size of the front windshield overlapping area. The front windshield overlapping area is a gluing and sealing area on the front windshield, and VIN (vehicle identification number) codes cannot be pasted on the front wall sheet metal opposite to the part of the area.

Specifically, the lower boundary line of the front windshield VIN code area is determined on the section defined along the length direction of the vehicle body, so that the influence of the VIN code pasted in the front windshield VIN code area on each part lapped with the front windshield glass is avoided. Therefore, the lower boundary of the front windshield VIN code area needs to be determined according to the size chain.

After the upper and lower boundary lines of the front windshield VIN code area are determined, the font of the VIN code pasted on the front windshield VIN code area and the size of the VIN code sticker need to be determined, which is as follows:

defining a VIN code font of a VIN code sticker, wherein the VIN code sticker is used for being pasted in the front windshield VIN code area; and determining the size of the VIN code sticker according to the upper boundary line and the lower boundary line of the VIN code area of the front windshield.

Referring to fig. 4B, the VIN code sticker includes a VIN code display area having the same size as the front windshield VIN code area, and a blank area outside the VIN code display area, where the color of the blank area is the same as the color of the black edge area of the front windshield glass, so that the VIN code sticker shields the front wall metal plate exposed from the vehicle body when being stuck to the front windshield.

Specifically, the color of the background of the VIN code display area is the same as that of the blank area, and is the same as that of the black edge area of the front windshield. On the premise of meeting the requirements of regulations, the font of the VIN code and the size of the VIN code sticker are defined according to the specifications of various companies so as to prevent the problem that the VIN of the front windshield is stuck on the white-leaking metal plate of the vehicle body.

In the specific implementation process, taking the fact that a human body normally stands beside a front tire on the side of a vehicle as a reference for checking, and taking a gap between a front metal plate and the thickness of a front windshield as an example, as shown in fig. 4B, the length and width of a VIN code display area in a VIN code sticker is 90 × 10mm, and the total length and width of the VIN code sticker is 90 × 20mm, wherein the length is along the width direction of the vehicle body. The larger the clearance between preceding surrounding panel beating and the windscreen thickness is more easily revealed white to satisfy the invisible white panel beating of human field of vision and design the total length width size of VIN sign indicating number sticker for the standard.

Referring to fig. 4A and 4B for comparison, since the size of the VIN code sticker generally and commonly used in the existing vehicle type is 90 × 10mm, it is found based on human-machine vision verification that the size of the VIN code sticker leaks the problem of the white front wall metal plate on the vehicle body, which affects the appearance. Therefore, the length and width of the VIN code sticker are changed to 90 × 20mm, and the white metal plate on the vehicle body leaking through the transparent window is shielded by using the background color of the sticker.

Further, as shown in fig. 5, a line limiting mode is adopted, a limiting mark is formed in a front windshield VIN code area defined by the upper boundary line and the lower boundary line, and the limiting mark is used for limiting the horizontal reference and the vertical reference when the VIN code sticker is pasted on the front windshield VIN code area, so that the problems of left deviation, right deviation, upper deviation, lower deviation and rotation when the VIN code sticker is pasted on the front windshield VIN code area are avoided, and accurate pasting of the VIN code sticker can be guaranteed. According to the operation habit and the operation comfort of human body, the VIN code sticker can be accurately pasted in a front windshield VIN code area no matter the VIN code sticker is pasted in the locomotive or a passenger cabin.

Based on the same inventive concept, an embodiment of the present invention provides a computer device, including: the processor executes the program to implement the aforementioned embodiment of the method for determining the VIN code area of the windshield VIN, and therefore further implementation details can refer to the aforementioned embodiment of the method, which is not described herein again.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A method for determining a VIN code area of a front windshield is characterized by comprising the following steps:

creating a universal data template based on CATIA software;

defining a three-dimensional plane based on the universal data template and establishing a part coordinate system of a front windshield position, wherein the part coordinate system is consistent with a whole vehicle coordinate system, and the front windshield position comprises front windshield glass and a part geometry body related to the front windshield glass;

under the part coordinate system of the front windshield position, constructing an ergonomic model of an automobile driver based on the universal data template, and determining the upper boundary line of a VIN code area of the front windshield based on the constructed ergonomic model;

determining a lower boundary line of the front windshield VIN code area according to a dimension chain of the front windshield glass and the related part geometry thereof, and defining the front windshield VIN code area by the upper boundary line and the lower boundary line.

2. The method of claim 1, further comprising, after defining the front windshield VIN code area with the upper boundary line and the lower boundary line:

defining a VIN code font of a VIN code sticker, wherein the VIN code sticker is used for being pasted in the front windshield VIN code area;

determining the size of the VIN code sticker according to the upper boundary line and the lower boundary line of the VIN code area of the front windshield;

the VIN code sticker comprises a VIN code display area with the same size as that of the VIN code area of the front windshield and a blank area surrounding the VIN code display area, wherein the color of the blank area is the same as that of the black edge area of the front windshield, so that the VIN code sticker shields a front wall metal plate exposed by a vehicle body when being stuck to the position of the front windshield.

3. The method of claim 2, wherein the VIN code sticker has a length and width dimension of 90 x 20mm, wherein the length is along the width of the vehicle body.

4. The method of claim 2, further comprising:

and forming a limiting mark in a front windshield VIN code area defined by the upper boundary line and the lower boundary line by adopting a line limiting mode, wherein the limiting mark is used for limiting the reference in the horizontal direction and the reference in the vertical direction when the VIN code sticker is pasted in the front windshield VIN code area.

5. A method as claimed in any one of claims 1 to 4, wherein the generic data template created by the CATIA software comprises a plurality of different data files:

the system comprises a basic module, an input module, an output module, a working module, a label set and a measurement data file which are created aiming at the position of the front windshield.

6. The method of claim 5, wherein said defining a three-dimensional plane and establishing a part coordinate system of a front windshield position based on said generic data template comprises:

creating three orthogonal planes as an XY plane, a YZ plane and an XZ plane in the basic module;

generating a new part coordinate dataset at the base module, the new part coordinate dataset comprising coordinate elements of a plurality of different face calibration points at a front windshield location;

carrying out element type homogenization treatment on coordinate elements in the new part coordinate data set and coordinate elements in a pre-established finished automobile coordinate set to obtain a coordinate system transformation matrix;

and according to the coordinate system transformation matrix and the element type homogenization and inverse processing process, obtaining a part coordinate system of the front windshield position consistent with the whole vehicle coordinate system.

7. The method of claim 5, wherein the performing an ergonomic model construction of a car driver based on the generic data template in a part coordinate system of the front windshield position comprises:

the input module obtains driving position size data required by ergonomic model construction and seating height sample data of a driver crowd;

determining the position coordinates of the datum points constructed by the ergonomic model;

the working module creates a three-dimensional human body model of the driver crowd based on the reference point position coordinates, the driving position size data and the sitting height sample data of the driver crowd, and creates an eye ellipse model of the driver crowd based on the three-dimensional human body model.

8. The method of claim 7, wherein said determining an upper boundary line of a front windshield VIN code area based on said ergonomic model as constructed comprises:

determining a tangent line of the eye ellipse model;

determining the glass black edge of the front windshield glass according to the vehicle type;

and defining a connecting line formed by the lower tangent line and the glass black edge as an upper boundary line of the VIN code area of the front windshield.

9. The method of claim 1, wherein said determining a lower boundary of said windshield VIN code area based on a dimensional chain of windshield glass and associated part geometry comprises:

forming the size chain according to the size of the front windshield glass and the size of each part geometry overlapped with the front windshield glass, wherein each part geometry overlapped with the front windshield glass comprises a front wall sheet metal of a vehicle body, an inner instrument panel and a ventilation cover plate;

and determining the lower boundary line of the front windshield VIN code area according to the size chain.

10. A computer device, comprising: memory, processor and program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1-9 when executing the program.

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