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Method for establishing traffic accident recurring utilizing Chinese male pedestrian figures dummy

A technology of traffic accidents and dummies, applied in the field of simulation, can solve problems such as failure to meet the accuracy and efficiency of accident reproduction, stop, lack of adaptability to individual cases, etc., to achieve the effect of enriching input options, increasing calculation speed, and improving approximation

Inactive Publication Date: 2007-01-03
SHANGHAI JIAO TONG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

In the past, most of the dummy modeling was limited to the establishment of dummy with different standard body shapes, which lacked the adaptability to individual cases and could not meet the accuracy and efficiency required for accident reproduction.

Method used

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  • Method for establishing traffic accident recurring utilizing Chinese male pedestrian figures dummy
  • Method for establishing traffic accident recurring utilizing Chinese male pedestrian figures dummy
  • Method for establishing traffic accident recurring utilizing Chinese male pedestrian figures dummy

Examples

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Embodiment Construction

[0022] In combination with a typical car-pedestrian collision accident, apply the present invention to establish a Chinese adult male pedestrian digital dummy for reproduction of traffic accidents, and integrate multi-rigid body models such as cars and ground to perform simulation calculations to reflect the purpose of the invention that can be achieved by the embodiments and effects. The specific implementation steps are as follows:

[0023] ①Determine the multi-rigid body dummy model of a male adult pedestrian with standard body shape to be used as a template for size adjustment. like figure 1 As shown, the standard male pedestrian dummy used in this embodiment has a height of 1.74m and a weight of 75.7kg. In most cases, templates for the dummy models have been created in advance.

[0024] ② According to the forensic report and the photos of the victim, determine the gender, height, weight and the approximate geometric dimensions of the main parts of the human body, and i...

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Abstract

A method to reappear the traffic accident by the Chinese adult dummy male is provided in the invention. The process includes: (1) build the dummy model and make the model input file used for the dummy computing; (2) input the information of the accident victim to the program by the human-machine interface; (3) generate the all mass distribution and the physical dimension of the adult male; (4) generate the inputting file of the dummy male and compute by the multi-steel dynamical dummy software; (5) detect the error of the dummy model and amend. The invention can not only simulate the collision process of the human-car but improve the computing speed, so it can fit for the accident identifying.

Description

technical field [0001] The invention relates to a method in the technical field of simulation, in particular to a method for establishing a Chinese adult male pedestrian digital dummy for traffic accident reproduction. Background technique [0002] In order to improve the identification efficiency of collision accidents between people and vehicles, computer numerical simulation methods are usually used to simulate collisions between people and vehicles, and the whole process of accidents can be reproduced according to the traces of the accident scene, vehicle deformation and human injury. Moreover, the use of digital dummies for collision simulation can analyze human injury information, which can replace traditional accident reconstruction methods and expand the scope of application of accident reconstruction. [0003] A search of existing research found that the accuracy of the simulation results depends to some extent on the degree of approximation of the dummy. In "Vehic...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 金先龙申杰张晓云
Owner SHANGHAI JIAO TONG UNIV
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