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Driver eye ellipse establishing method

A method of establishing an eye ellipsoid, applied in geometric CAD, design optimization/simulation, special data processing applications, etc., can solve problems such as time-consuming and laborious, affecting the applicability of eye point distribution

Inactive Publication Date: 2020-11-06
JILIN UNIV
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Problems solved by technology

[0003] Aiming at the current method of establishing the eye ellipse through experimental statistics is time-consuming and laborious, and the change of human body size and vehicle size will affect the applicability of the eye point distribution, there is an urgent need for a method that can quickly and conveniently obtain the eye point distribution and establish the eye ellipse. Methods

Method used

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Embodiment 1

[0047] A method for establishing a driver's eye ellipse, comprising the following steps:

[0048] Step 1: According to the digital characteristics (mean value and covariance matrix) of the human body data distribution of the target population, it is necessary to generate mixed population samples of men and women through Monte Carlo simulation, and the capacity can be input as required. For example, 5000 sample data of men and women can be generated.

[0049] Step 2: Establish a kinematics model of the driving posture and define the posture of the human body. The established human kinematics model has main joint points and feature points (including eye points) of the lower limbs, torso and head.

[0050] Step 3: Through research, establish a mathematical model for predicting driving sitting posture based on cab layout size and human body size.

[0051] Step 4: Use the generated crowd sample data to predict their driving posture to obtain the position of the eyes in the cab. P...

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Abstract

The invention discloses a driver eye ellipse establishing method, which belongs to the technical field of automobile ergonomics. The method comprises the following steps: generating a male and femalemixed population sample through Monte Carlo simulation according to digital characteristics of human body data distribution of a target population; establishing a kinematic model of the driving sitting posture, and defining the posture of the human body; establishing a mathematical model for predicting the driving sitting posture according to the cab arrangement size and the human body size through research; utilizing the generated population sample data to predict the driving sitting postures of the population so as to obtain the positions of the eye points in a cab; performing the same calculation on all the sample points to obtain eye point coordinate scatter data; and performing statistical analysis and calculation on the scatter data to obtain eye ellipse parameters corresponding to the current vehicle type arrangement size. According to the driver eye ellipse establishing method, the eye point distribution of the target population can be rapidly obtained, and the eye ellipse is established.

Description

technical field [0001] The invention belongs to the technical field of automobile ergonomics, and in particular relates to a method for establishing a driver's eye ellipse. Background technique [0002] Vision design is an important link in the process of automobile design, and eye point distribution is the basis of vision design. It is described by eye ellipse. Accurately describing the distribution of eye points is very important for automobile vision design. The so-called eye ellipse refers to the statistical distribution of eye positions in the vehicle coordinate system when drivers of different sizes sit in a comfortable driving position in a normal posture. Because of its oval shape, it is called eye ellipse. The formulation of the eye ellipse provides a scientific basis for the design of the visual field of the vehicle, and enables the designer to better grasp the result of the visual field design. The establishment of the traditional eye ellipse is obtained after s...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/20
CPCG06F30/15G06F30/20
Inventor 任金东马明洋马铁军鲍文静艾荣李旭
Owner JILIN UNIV
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