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Monitoring and evaluation method of driving behavior risk degrees

A technology of risk and behavior, applied in driver input parameters, control devices, transportation and packaging, etc., can solve problems such as poor robustness, achieve low-cost investment, improve management efficiency, and suppress bad driving behaviors

Active Publication Date: 2015-04-22
TSINGHUA UNIV +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0011] The technical scheme of the present invention collects steering wheel angle and vehicle speed information through the CAN bus, and collects vehicle lateral and longitudinal acceleration information by adding a biaxial accelerometer, avoiding the current use of machine vision to monitor driver behavior. At the same time, it avoids the problem that the radar-based application system is prone to danger and hidden dangers due to external interference (such as metal guardrails on the roadside, buses or trucks in adjacent lanes, etc.), and the signal acquisition is easy and basically useless. noise, high reliability

Method used

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  • Monitoring and evaluation method of driving behavior risk degrees
  • Monitoring and evaluation method of driving behavior risk degrees
  • Monitoring and evaluation method of driving behavior risk degrees

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Embodiment Construction

[0014] A method for monitoring and evaluating the risk of driving behavior proposed by the present invention is described in detail in conjunction with the embodiments as follows:

[0015] The present invention is mainly based on vehicle state parameters and driver operating parameter information, and comprehensively considers the impact of different amplitude-frequency characteristics on driving risk, and monitors and evaluates the risk of driving behavior; the method includes the following steps:

[0016] 1) Real-time data collection

[0017] The collected data includes steering wheel angle, vehicle speed, longitudinal acceleration, and lateral acceleration; the data sampling frequency can be between [5,100] Hz; the steering wheel angle and vehicle speed are obtained by analyzing the CAN bus data output, and the unit of steering wheel angle is degree (°). The unit of vehicle speed is km / h (km / h), and the longitudinal acceleration and lateral acceleration are collected by ins...

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Abstract

The invention relates to a monitoring and evaluation method of driving behavior risk degrees and belongs to the technical field of automobile active safety. The method includes that steering wheel rotating angles, vehicle speed, longitudinal acceleration and transverse acceleration are real-timely collected; the real-timely collected data are arranged to form a data sequence in chronological sequence; driving risk degrees of acceleration, braking, overspeed, lave maintaining and lane changing are monitored and evaluated respectively according to vehicle state parameter and driver operation parameter information; comprehensive monitoring and evaluation of total driving risk degree at current moment is performed according to each risk degree index that is obtained in time window wide range so that a comprehensive monitoring and evaluation value at the current moment is obtained. Communication of the obtained comprehensive monitoring and evaluation value with a driver is achieved through an on-line real-time early warning man-machine interaction mode, and thereby, purposes of improving driving safety qualities and reducing road traffic accidents can be achieved.

Description

technical field [0001] The invention belongs to the technical field of automobile active safety, and in particular relates to a driver's driving dangerous state monitoring technology based on driver's operation information and vehicle state information. Background technique [0002] With the improvement of people's awareness of traffic safety, it has become a hot issue in the research of traffic safety and vehicle intelligence to develop various vehicle safety assisted driving systems to enhance vehicle driving safety. The essence of the vehicle active safety system is to monitor the driver's driving safety status, vehicle operating status and environmental information in real time, identify and predict the dangerous driving status and give timely reminders, and actively intervene in the intervention or control of vehicle operation when necessary . Continuously in-depth research and experiments have shown that: Intelligent monitoring of the driver's driving behavior and dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/08B60W40/105B60W40/107B60W40/109B60W40/00B60W50/14
CPCB60W40/09B60W40/105B60W40/107B60W40/109B60W50/14B60W2520/10B60W2520/105B60W2520/12B60W2520/125B60W2540/18
Inventor 成波李升波李国法王文军贾丽娟廖源李仁杰
Owner TSINGHUA UNIV
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