CN-122023694-A - Three-dimensional checking method and device for rearview mirror

CN122023694ACN 122023694 ACN122023694 ACN 122023694ACN-122023694-A

Abstract

The invention discloses a three-dimensional checking method and device for a rearview mirror, wherein the method comprises the following steps of S1, establishing a three-dimensional model of a driver, the automobile and the rearview mirror, wherein the driver is positioned at a driving position of the automobile, demarcating a legal regulation area of the automobile, S2, connecting the driver and first uniform distribution points to form first visual field lines, making a normal line of a mirror surface at each first uniform distribution point, making a first reflection line of the first visual field lines through the normal line, judging whether the first reflection line is shot into a front legal area, S3, connecting the driver and second uniform distribution points to form second visual field lines, making a normal line of the mirror surface at each second uniform distribution point, making a second reflection line of the second visual field lines through the normal line, making a vertical detection surface at any position in a side legal area, connecting the vertical detection surface and at least the second reflection lines, forming the visual field areas, making the visual field areas projected to the legal regulation area along the second reflection line direction, S4, judging whether the projected visual field areas and the legal regulation area have an intersection area.

Inventors

WANG PUWEI
BAI XIAOPING
Lu Yujian
YUAN LIANGMING
HE GUOHUA
ZHOU QIANG
MA HUI
Gong Liquan
CHEN FEIBIN

Assignees

珠海广通汽车有限公司
格力钛新能源股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260114

Claims (10)

1. The three-dimensional checking method of the rearview mirror is used for detecting the visual field of the automobile rearview mirror, and the rearview mirror comprises a first mirror surface and a second mirror surface and is characterized by comprising the following steps: S1, building a three-dimensional model of a driver, an automobile and a rearview mirror, wherein the driver is positioned at a driving position of the automobile, and defines legal regulation areas of the automobile, the legal regulation areas comprise a front legal area and side legal areas, the front legal area is positioned in front of the automobile, the side legal areas are positioned at two sides of the automobile, and the driver can observe the conditions of the front legal area and the side legal areas through the rearview mirror; S2, setting first average points at the edge of the first mirror surface, connecting a driver and the first average points to form first view lines, making normal lines of the mirror surface at each first average point, making first reflection lines of the first view lines through the normal lines, judging whether the first reflection lines are shot into a front legal area or not, entering the next operation if the first reflection lines can be shot into the front legal area, and adjusting the rearview mirror until the first reflection lines can be shot into the front legal area if the first reflection lines can not be shot into the front legal area; S3, setting second uniform distribution points at the edge of the second mirror surface, connecting a driver and the second uniform distribution points to form second visual field lines, making normal lines of the mirror surface at each second uniform distribution point, making second reflection lines of the second visual field lines through the normal lines, making vertical detection surfaces at any positions in the side legal area, connecting the vertical detection surfaces and at least the second reflection lines, forming visual field areas, and projecting the visual field areas to the legal regulation areas along the direction of the second reflection lines; s4, judging whether an intersection area exists between the projected visual field area and the legal stipulated area, if so, enabling the rearview mirror to meet the visual field requirement, and if not, enabling the rearview mirror not to meet the visual field requirement.
2. The three-dimensional checking method of a rear view mirror according to claim 1, further comprising, in step S2, the steps of: Judging whether the path of the first visual field line is blocked, if so, adjusting the rearview mirror until the path of the first visual field line is not blocked, and if not, entering the next operation.
3. The three-dimensional checking method of a rear view mirror according to claim 2, further comprising, in step S3, the steps of: Judging whether the path of the second view line is blocked, returning to the step S2 until the path of the first view line and the path of the second view line are not blocked if the path of the second view line is blocked by the first lens, and entering the next step if the path of the second view line is not blocked.
4. A method of three-dimensional checking of a rear view mirror according to any of claims 2 or 3, characterized in that in step S3 the method of adjusting the rear view mirror comprises changing the height of the rear view mirror or adjusting the angle of the rear view mirror.
5. The method according to claim 4, wherein in step S3, if the path of the first view line is not blocked or the path of the first view line is not blocked, the height of the first lens is higher than the height of the second lens.
6. The three-dimensional checking method of a rear view mirror according to claim 1, wherein the step S1 specifically comprises: s11, building a three-dimensional model of a driver, an automobile and a rearview mirror, wherein the three-dimensional model of the automobile comprises a front roof interior trim part, a front guideboard, a front surrounding framework, a windscreen wiper and a side surrounding framework; S12, setting the position of a rearview mirror, so that the rearview mirror is arranged on a front wall framework of an automobile; S13, setting the position of a driver so that the driver is positioned at the driving position of the automobile, and setting the eye position of the driver; s14, demarcating legal stipulation areas of the automobile, wherein the front legal areas are positioned on the front side of the front surrounding framework, and the side legal areas are positioned on two sides of the side surrounding framework.
7. The three-dimensional checking method of a rear view mirror according to claim 6, wherein the position of the driver's eye point is determined based on the ergonomically checked position of the eye point, and the driving position of the driver is determined based on the optimal pose of the human body.
8. The three-dimensional checking method of a rear view mirror according to claim 6, wherein the step S4 specifically comprises: S41, judging whether an intersection area exists between the projected visual field area and the legal stipulated area, if so, entering a step S42, and if not, enabling the rearview mirror not to meet the visual field requirement; S42, judging whether the first view line and the second view line can pass through the operation range of the wiper, if the first view line and the second view line can pass through the operation range of the wiper, the rearview mirror meets the view requirement, and if either the first view line and the second view line can not pass through the operation range of the wiper, the rearview mirror does not meet the view requirement.
9. A method of three-dimensional checking of a rear view mirror according to claim 1, wherein the field of view of the rear view mirror is divided into a class II field of view range, the field of view range being that of an indirect field of view device for a motor vehicle of the class GB-15084-2022.
10. A three-dimensional checking apparatus for a rear view mirror using the three-dimensional checking method for a rear view mirror according to any one of claims 1 to 9, comprising: the adjusting module is used for adjusting the angle position of the rearview mirror and initializing the rearview mirror; the acquisition module is used for acquiring driving condition information of the automobile; the generating module is used for generating visual field information of the rearview mirror and visual field information of a driver, wherein the visual field information comprises a first reflection line, a second reflection line, a first visual field line, a second visual field line, a visual field area and a legal regulation area.

Description

Three-dimensional checking method and device for rearview mirror Technical Field The invention belongs to the technical field of vehicles, and particularly relates to a three-dimensional checking method and device for rearview mirrors. Background Because the chassis of the passenger car is higher and the car body is longer, special structural designs such as an outer swinging mirror are adopted, and the like, the areas such as the vicinity of the car head and the right front wheel are provided with large visual field blind areas, and traffic accidents are easy to be induced in the turning and starting processes of the car. In the prior art, a two-dimensional checking method is generally adopted for detection, but the two-dimensional checking method can only perform rough simulation on a plane view, can not be matched with the complex body contour of a passenger car and the installation characteristics of an external rearview mirror, so that a three-dimensional view blind area is difficult to capture accurately, and early view checking work relies on manual drawing of tens or even hundreds of view lines to simulate the view, so that the operation is complicated in flow, long in time consumption and easy to cause errors. Meanwhile, as the requirements of visual field regulations in different countries and regions are required to be met by the bus export, the two-dimensional checking method is difficult to meet the checking requirements of a large number of differences, and the working efficiency is low. Therefore, there is a need to design a three-dimensional checking method and device for rearview mirrors, which solve the above-mentioned problems. Disclosure of Invention In order to solve the technical problems that the two-dimensional checking mentioned in the background technology can only simulate the field of view in a plane, errors are easy to exist and the working efficiency is low, the three-dimensional checking method and the three-dimensional checking device for the rearview mirror are provided. In order to achieve the above purpose, the specific technical scheme of the three-dimensional checking method of the rearview mirror is as follows: A three-dimensional checking method of a rearview mirror is used for detecting the visual field of the rearview mirror of an automobile, and the rearview mirror comprises a first mirror surface and a second mirror surface, and comprises the following steps: S1, building a three-dimensional model of a driver, an automobile and a rearview mirror, wherein the driver is positioned at a driving position of the automobile, and defines legal regulation areas of the automobile, the legal regulation areas comprise a front legal area and side legal areas, the front legal area is positioned in front of the automobile, the side legal areas are positioned at two sides of the automobile, and the driver can observe the conditions of the front legal area and the side legal areas through the rearview mirror; S2, setting first average points at the edge of the first mirror surface, connecting a driver and the first average points to form first view lines, making normal lines of the mirror surface at each first average point, making first reflection lines of the first view lines through the normal lines, judging whether the first reflection lines are shot into a front legal area or not, entering the next operation if the first reflection lines can be shot into the front legal area, and adjusting the rearview mirror until the first reflection lines can be shot into the front legal area if the first reflection lines can not be shot into the front legal area; S3, setting second uniform distribution points at the edge of the second mirror surface, connecting a driver and the second uniform distribution points to form second visual field lines, making normal lines of the mirror surface at each second uniform distribution point, making second reflection lines of the second visual field lines through the normal lines, making vertical detection surfaces at any positions in the side legal area, connecting the vertical detection surfaces and at least the second reflection lines, forming visual field areas, and projecting the visual field areas to the legal regulation areas along the direction of the second reflection lines; s4, judging whether an intersection area exists between the projected visual field area and the legal stipulated area, if so, enabling the rearview mirror to meet the visual field requirement, and if not, enabling the rearview mirror not to meet the visual field requirement. Further, in step S2, the method further includes the steps of: Judging whether the path of the first visual field line is blocked, if so, adjusting the rearview mirror until the path of the first visual field line is not blocked, and if not, entering the next operation. Further, in step S3, the method further includes the steps of: Judging whether the path of the second view line is blocked, returning