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A vehicle collision accident level judgment method

A vehicle collision and discrimination method technology, which is applied in the field of automobile safety and collision detection, can solve the problems of classification, inability to detect the severity of automobile collision, and no collision severity, etc., so as to improve driving safety, promote perfection and development, and improve safety Effect

Active Publication Date: 2019-04-23
CHENGDU LUXINGTONG INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the industry is still unable to make an objective and accurate detection of the severity of automobile collisions, and there is no technical means to effectively grade the severity of collisions

Method used

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  • A vehicle collision accident level judgment method

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Experimental program
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Effect test

Embodiment 1

[0036] A method for judging the grade of a vehicle collision accident, said method comprising the following steps:

[0037] S1: Obtain the data packets of the T1 time period before and after the T2 time period of the suspected collision time point, and extract the velocity, acceleration, and angular velocity from the obtained data packets in sequence to obtain the velocity vector V, acceleration vector A, and angular velocity vector R. The location data is extracted from the data packet; the location data is the location longitude and latitude data of the suspected collision time point;

[0038] S2: Preprocessing the data of velocity vector V, acceleration vector A, and angular velocity vector R respectively;

[0039]S3: segment velocity vector V, acceleration vector A, and angular velocity vector R according to time respectively, obtain N1 velocity vector V data segments, N2 acceleration vector A data segments, N3 angular velocity vector R data segments, after segmentation T...

Embodiment 2

[0063] The overall flow of the collision detection of the present invention is as follows: figure 1 As shown, each step of the overall process is described in detail below:

[0064] S001: Obtain the data packets of the T1 time interval before the suspected collision time point and the T2 time interval after the suspected collision time point, wherein the data packet is a continuous time period data packet to extract velocity, acceleration, and angular velocity to form a velocity vector V, an acceleration vector A, an angular velocity vector R, and The latitude and longitude of the suspected collision time point. Go to S002.

[0065] S002: Divided into the following four sub-steps, parallel calculation at the same time, after the calculation is completed, go to S003.

[0066] S201: Carry out data preprocessing of the velocity vector V, wherein the missing value of the velocity vector in the data packet is filled with the mean value of the front and rear items; the abnormal va...

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Abstract

The invention discloses a vehicle collision accident level judgment method, and relates to the field of vehicle safety and collision detection. The method comprises the following steps of obtaining data packets of a time interval T1 before a suspected collision time point and a time interval T2 after the suspected collision time point, and extracting motion data and position data from the data packets; segmenting the motion data, and performing data processing on the data segments by taking the segments as units to reflect data characteristics of various motion parameter data segments; judgingeach type of data of the motion parameters of the motion data according to a data processing result to obtain a data segment with most obvious change; performing grading judgment on the significant data segments to obtain a judgment result; performing grading judgment on the road scene according to the position data grading judgment rule to obtain a grade; and calculating and processing to obtaina comprehensive collision severity level G according to a plurality of level judgment results. According to the invention, through a large amount of data demonstration, the collision is divided intoa plurality of grades, accurate judgment on the vehicle state can effectively improve the driving safety in the Internet of Vehicles, the safety of the Internet of Vehicles is improved, and the improvement and the development of the existing Internet of Vehicles system are promoted.

Description

technical field [0001] The invention relates to the fields of automobile safety and collision detection, in particular to a method for judging the level of vehicle collision accidents. Background technique [0002] With the development of the economy, cars have become an indispensable tool in people's lives, making people's lives more convenient. As more and more cars are put into use and users spend more and more time in the car, its traffic control and traffic safety have become an important issue. Therefore, after the Internet and the Internet of Things, the Internet of Vehicles is another symbol of the future smart city. [0003] In the environment of the Internet of Vehicles, car safety is a matter of great concern to people. The environment and state information of the vehicle itself is a very important factor affecting the safety of the vehicle, and it is an indispensable application in the Internet of Vehicles environment. Car collision is a particularly important...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/903
Inventor 陈剑波叶清明
Owner CHENGDU LUXINGTONG INFORMATION TECH