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Device for monitoring fatigue driving state and its method

A state monitoring and fatigue driving technology, applied in the direction of image data processing, using re-radiation, sensors, etc., can solve the problem of not being able to effectively prevent traffic accidents, achieve the effect of improving reliability and accuracy, and reducing shadows

Inactive Publication Date: 2006-09-13
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

When the driver is seriously fatigued, he can only call the police instead of taking active braking measures, which cannot effectively prevent the occurrence of traffic accidents

Method used

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  • Device for monitoring fatigue driving state and its method
  • Device for monitoring fatigue driving state and its method
  • Device for monitoring fatigue driving state and its method

Examples

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Embodiment Construction

[0042] Below in conjunction with accompanying drawing and embodiment the present invention is described as follows:

[0043] 1. The hardware composition of the fatigue driving status monitoring device

[0044] The power supply of this device is connected by the power supply on the motor vehicle through the power converter. When the motor vehicle is running, the device monitors it. The system consists of the following hardware components: infrared light source, infrared bandpass filter lens, infrared black and white camera, video decoder, video buffer interface, synchronous dynamic memory, flash memory, system logic generation module, asynchronous serial communication interface, digital signal processor , single-chip microcomputer, vehicle speed sensor (vehicle) and early warning prompts, alarm and braking circuits, etc. Such as figure 1 The block diagram shown. According to the circuit function, it can be divided into image acquisition, conversion module, DSP image proces...

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Abstract

An apparatus for monitoring the fatigue state of the motor-driven vehicle's driver is composed of image acquisition and conversion system, image processing system, fatigue state recognizing system, prompting and alarm system and brake system. Its method includes such steps as acquiring the face images of driver by infrared light and camera, processing the images to obtain eye images, recognizing eye state, calculating the winking duration, frequency and PERCLOS value, and judging the fatigue degree of driver.

Description

technical field [0001] The invention belongs to the application field of digital signal processors, in particular to a device and a monitoring method for monitoring the fatigue driving state of motor vehicle drivers during driving. Background technique [0002] With the increase of car ownership, the occurrence of traffic accidents tends to increase. According to relevant statistics, fatigue driving accounts for 22% to 30% of traffic accidents, ranking first in the cause of fatal traffic accidents. Therefore, western developed countries have invested huge manpower and material resources to extensively carry out research work on driving fatigue, and some research results have applied for patents. [0003] The patent with the prior application number CN200510037771.9 uses infrared light to irradiate the driver's eyes, and obtains two images with only the retinal image different at the same time through two CMOS cameras with different wavelength filter lenses. The collected i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/18A61B3/10G01C11/36G06T7/20
Inventor 何国红李晓明李埃荣梁富
Owner TAIYUAN UNIV OF TECH
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