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Fatigue driving and improper driving behavior monitoring method and active safe driving monitoring system

A behavioral and driver technology, applied in transmission systems, instruments, character and pattern recognition, etc., can solve problems such as inaccuracy, high cost, and inability to distinguish the degree of distraction, so as to avoid missing alarms and relieve driver fatigue. Effect

Active Publication Date: 2021-01-29
JIANGLING MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN 110275608A introduces to obtain the human eye feature at the reference position corresponding to the target human eye feature according to the functional relationship, and obtain the unknown line of sight position according to the human eye feature at the reference position corresponding to the target human eye feature, only to locate the line of sight position, Inaccurate; Chinese patent CN 111401130 A proposes a driver distraction detection method based on continuous head posture estimation, judging the state of distraction according to the head posture, and cannot distinguish the degree of distraction; Chinese patent CN109050397.A only introduces a A warning device for the driver to leave the steering wheel, which detects the time when the driver leaves the steering wheel and compares it with the time threshold to determine whether to let go; This method requires the vehicle to be in adaptive cruise mode and rely on ADAS maps to obtain road information, which is costly and limited to use scenarios

Method used

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  • Fatigue driving and improper driving behavior monitoring method and active safe driving monitoring system
  • Fatigue driving and improper driving behavior monitoring method and active safe driving monitoring system
  • Fatigue driving and improper driving behavior monitoring method and active safe driving monitoring system

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Embodiment 1

[0036] see Figure 1-Figure 2 , the present invention is based on the driver’s fatigue driving and improper driving behavior monitoring method based on the eye-tracking technology, collects the inside and outside of the car and the driver’s face data, and inputs it to the controller for execution, and detects the driver’s distraction level to further complete the judgment of the release time. It is different from the existing technology in that it adopts the fusion scheme of stable line of sight algorithm and precise line of sight tracking algorithm to comprehensively cover different application scenarios; the specific steps are as follows:

[0037] 1) Use the face detection module to collect the driver's face data to obtain an infrared image, and locate the face information in the image;

[0038] 2) According to the face information of the infrared image positioning, the driver's head posture is continuously detected, compared with the face data in the database, and the real ...

Embodiment 2

[0043] This embodiment is based on the eyesight tracking technology driver fatigue driving and improper driving behavior monitoring method, different from Embodiment 1, further: the precise eye tracking method uses bright pupils and dark pupils at the time of initial calibration Carry out calibration, and in subsequent actual scenes, the algorithm can match bright pupils and dark pupils in real-time switching matching algorithms to improve accuracy; by combining the center of the outer edge of the pupil and the center of the corneal virtual sphere, the driver's line of sight can be output towards.

[0044] The described driver fatigue driving and improper driving behavior monitoring method based on eye-tracking technology uses a stable line-of-sight algorithm to locate 68 feature points on the face, and adaptively establishes a 3D model of the head, thereby obtaining the posture of the head to determine the orientation of the head , and further get the center position of the p...

Embodiment 3

[0046] join Figure 1-Figure 7 , the line of sight tracking of the present invention adopts a stable line of sight and precise line of sight fusion scheme to more comprehensively cover different application scenarios. To stabilize the line of sight, after locating 68 feature points on the face, the 3D model of the head is adaptively established, so as to obtain the posture of the head, determine the orientation of the head, and further obtain the center position of the pupil. Accurate line of sight is to use the corneal reflection method combining bright pupil and dark pupil to obtain the precise line of sight of the driver.

[0047] The principle of the corneal reflection method is as follows: When the infrared fill light illuminates the human eye, the cornea is similar to a convex mirror, and the light source is reflected by the convex mirror to form a bright spot. The precise center of the corneal virtual sphere can be calculated through the position of the light spot, suc...

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Abstract

The invention relates to an active or auxiliary protection method and system for safe driving of a vehicle. A driver fatigue driving and improper driving behavior monitoring method based on a sight tracking technology employs a stable sight algorithm and a precise sight tracking algorithm fusion scheme, and comprises the steps of: collecting face data, and positioning face information in an image;continuously detecting the head posture of the driver, comparing the face data with face data in a database, and confirming a real face; positioning the feature points in the image by adopting the stable sight algorithm, adaptively establishing a head 3D model, and determining the driver behavior, head direction, sight direction and eye state; adopting a corneal reflection method combining brightpupil and dark pupil to obtain the precise sight of the driver in the precise sight tracking algorithm; and determining the distraction degree of the driver according to the head posture and the sight direction, and further determining the duration allowing the driver to release hands. An active safe driving monitoring system comprises a driver face detection module, a forward-looking monocular camera, a DMS control module, a man-machine interaction system and a T-box vehicle-mounted network communication terminal.

Description

technical field [0001] The invention relates to active protection or auxiliary measures for safe driving of vehicles, in particular to a strategy for early warning monitoring and alarming of driver fatigue and driving misconduct and high-level driving assistance function release time. Background technique [0002] With the continuous increase of car ownership and the development of the road transportation industry, the frequency of traffic accidents is also increasing. According to statistics from the Ministry of Communications, in 2016, there were 165,000 road traffic accidents nationwide, resulting in 51,800 deaths. , 599,000 people were injured, and the main causes of traffic accidents were drivers' illegal driving and fatigue driving. For long-distance freight drivers, bus drivers, and online car-hailing drivers, etc., they often encounter behaviors such as smoking, making and receiving calls, sending and receiving text messages, operating the central control panel to ad...

Claims

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Application Information

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IPC IPC(8): G08B21/06G08B25/10H04L29/08G06K9/00G06K9/32
CPCG08B21/06G08B25/10H04L67/10H04L67/125G06V40/171G06V40/193G06V20/597G06V10/25
Inventor 刘卫东吴方义王爱春黄少堂
Owner JIANGLING MOTORS
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