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Semi-trailer truck multi-source information fusion rollover early warning method based on DS evidence theory

A technology of evidence theory and rollover, applied in the direction of electrical digital data processing, special data processing applications, geometric CAD, etc., can solve problems such as untimely and inaccurate rollover warning, achieve timely prediction, clear calculation method, and analysis The effect of comprehensive data

Active Publication Date: 2019-07-05
SOUTHEAST UNIV
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AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of inaccurate and untimely rollover warning during the running of the semi-trailer tanker, the present invention proposes a rollover warning method based on DS (Dempster-Shafer) evidence theory for semi-trailer tanker multi-source information fusion

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  • Semi-trailer truck multi-source information fusion rollover early warning method based on DS evidence theory
  • Semi-trailer truck multi-source information fusion rollover early warning method based on DS evidence theory
  • Semi-trailer truck multi-source information fusion rollover early warning method based on DS evidence theory

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Embodiment Construction

[0046] The technical solutions provided by the present invention will be described in detail below in conjunction with specific examples. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0047]The invention proposes a rollover early warning method based on DS evidence theory for multi-source information fusion of a semi-trailer tanker. This method first defines the three rollover characterization parameters and the real-time acquisition method, then calculates the estimated rollover occurrence probability corresponding to the three rollover characterization parameters, and then uses DS evidence theory to fuse these probabilities to obtain the estimated rollover occurrence probability The optimal probability, and finally, according to the optimal probability of estimated rollover occurrence, early warning is given in different levels. The rollover...

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Abstract

The invention provides a semi-trailer truck multi-source information fusion rollover early warning method based on a DS evidence theory. The method comprises the following steps: firstly, defining three rollover characterization parameters and a real-time acquisition mode; and then calculating estimated rollover occurrence probabilities corresponding to the three rollover characterization parameters respectively, carrying out fusion processing on the probabilities by adopting a DS evidence theory to obtain an optimal probability of estimated rollover occurrence, and finally carrying out earlywarning in a grading manner according to the optimal probability of estimated rollover occurrence. According to the rollover early warning method provided by the invention, complex kinetic equations and vehicle body parameters do not need to be considered. The method has the advantages that the current rollover occurrence probability of the semi-trailer can be calculated only by redundancy processing of multiple pieces of low-cost sensor information, the rollover danger can be accurately quantified, early warning can be accurately and timely performed, a driver can take preventive measures assoon as possible, and rollover accidents can be reduced.

Description

technical field [0001] The invention relates to a rollover early warning method for a semi-trailer tanker, in particular to a multi-source information fusion rollover early warning method for a semi-trailer tanker based on DS evidence theory, and belongs to the technical field of automobile safety. Background technique [0002] In recent years, with the vigorous development of the road transportation industry, semi-trailer trucks have become the main carrier of road transportation of dangerous goods, responsible for transporting various flammable and explosive liquids and powdery goods. Due to the high position of the center of gravity, relatively small wheelbase and susceptibility to liquid disturbance, semi-trailer trucks are prone to rollover under conditions such as ice and snow slippery roads, small turning radius and high driving speed, resulting in Leakage of dangerous goods will cause environmental pollution and traffic congestion, and seriously damage life and socia...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20
Inventor 李旭韦坤徐启敏
Owner SOUTHEAST UNIV
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