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Vehicle operation risk assessment information collection system, risk assessment system and method

A vehicle operation and risk assessment technology, applied in the field of traffic engineering, can solve problems such as incomplete consideration of factors and inaccurate risk assessment results, and achieve fast risk assessment, accurate risk assessment results, and good stability

Active Publication Date: 2021-08-24
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention solves the problem of relatively inaccurate risk assessment results caused by relatively incomplete considerations of existing vehicle risk assessments based on vehicle operating conditions

Method used

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  • Vehicle operation risk assessment information collection system, risk assessment system and method
  • Vehicle operation risk assessment information collection system, risk assessment system and method
  • Vehicle operation risk assessment information collection system, risk assessment system and method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0064] An information acquisition system for vehicle operating risk assessments, including:

[0065] Ying dynamometer, used to collect the driver's line of sight offset time, sweeping speed, blinking frequency; eye moving instrument camera can be mounted on a steering wheel or rearview mirror, as long as it can be collected from the driver's line of viewing time, sweeping speed, blinking Frequency information can be;

[0066] The rangefinder is used to collect the pitch data of the current car and the front car; the rangefinder can be installed on the front windshield;

[0067] Acceleration sensor, used to collect acceleration information of the vehicle; the acceleration sensor can be a vehicle itself, or it may be a later installed, as long as it is possible to collect the acceleration information of the vehicle;

[0068] The steering wheel sensor is used to capture the driver's steering wheel control, steering wheel steering information; the steering wheel sensor can be a steeri...

specific Embodiment approach 2

[0070] A vehicle operating risk assessment system, including:

[0071] DETAILED DESCRIPTION OF THE INVENTION An information acquisition system and a risk assessment unit of a vehicle operating risk assessment;

[0072] The risk assessment unit, based on the speed, acceleration, the current vehicle and the front vehicle spacing, and the driver's line transfer time, the sweep speed, the blink frequency; calculate the vehicle spacing index data and the steering wheel steering entropy indicator data, The acceleration of the line transfer time, the sweep speed, the blinking frequency, and the vehicle correspond to the line transfer time indicator data, the speed indicator data, blink frequency indicator data, and acceleration indicator data;

[0073] Based on the vehicle spacing index data, steering wheel steering entropy indicator data, line transfer time indicator data, scan speed indicator data, blinking frequency indicator data, and acceleration indicator data, and respective risk,...

specific Embodiment approach 3

[0074] Detailed Embodiment 3: Combination Figure 1 Description This embodiment,

[0075] A vehicle operating risk assessment method, including the following steps:

[0076] Step 1: The information acquisition system and the vehicle own equipment are collected based on the vehicle operation risk assessment. The speed, acceleration, the current vehicle and the front vehicle spacing, and the driver's line transfer time, sweeping speed, blink of an eye frequency;

[0077] Step 2: Calculate the vehicle spacing index data and steering wheel steering entropy indicator data;

[0078] At the same time, the line transfer time, the sweep speed, the blinking frequency, and the acceleration of the vehicle correspond to the line transfer time indicator data, the speed indicator data, blink frequency indicator data, and acceleration indicator data;

[0079] A judging cycle contains several sampling cycles; obtains the maximum value of the vehicle spacing index data in each judgment period, the s...

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Abstract

The vehicle operation risk assessment information collection system, risk assessment system and method relate to the field of traffic engineering, and specifically relate to the vehicle operation risk assessment system and method. The present invention aims to solve the problem of relatively inaccurate risk assessment results caused by relatively incomplete consideration of factors in the existing vehicle risk assessment based on vehicle operating conditions. The present invention calculates the vehicle distance index data and the steering wheel steering entropy index data according to the speed of the current vehicle, the vehicle distance between the current vehicle and the vehicle in front, and the driver's line of sight transfer time, glance speed, and blinking frequency; and according to each judgment Each indicator in the cycle and the corresponding risk indicator thresholds judge the corresponding risks, and then build a Bayesian network, and calculate the conditional probability through learning to obtain the vehicle operation risk value. The invention is used for risk assessment of vehicle operation.

Description

Technical field [0001] The present invention relates to the field of traffic engineering, and specific involves vehicle operating risk assessment systems and methods. Background technique [0002] People are used to equivalent traffic safety, in fact, from the road traffic system composed of people, cars, roads, and environment, from normal state to the non-normal state of casualties and property loss, in the process of experience Safety exposure - encounters - Safety-energy-energy transfer after four phases, eventually will eventually produce traffic safety consequences. Control theory, the existing driving assistance system ADAS is mainly working in the risk-saving phase. If you can discover the abnormal state of the vehicle early, it is possible to warn the security exposure stage in the early stage, and it is possible to provide a sufficient time to the driver to eliminate traffic accidents in germination. Early estimation of vehicle safety. As the German Mercedes-Benz compan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R16/02G07C5/08
CPCB60R16/02G07C5/0841
Inventor 马艳丽范璐洋孙艺宸祁首铭张鹏
Owner HARBIN INST OF TECH
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