CN105260724A - System for identifying attention of eyes of vehicle owner during travelling of vehicle - Google Patents

Abstract

The invention discloses a system for identifying the attention of eyes of a vehicle owner during the travelling of a vehicle. The system comprises: setting a G point as the midpoint of the two eyes of a driver and a Q point as the midpoint of two nostrils, establishing a coordinate system, calculating a transverse deflection angle with a Y-axis as the center, giving a left and right eye coordinate based on an eye positioning algorithm, calculating deviating distance y of the midpoint G of the two eyes from an EF, the midpoint O moving a physical length y<mu>x, obtaining the actual moving distance of the midpoint of the two eyes of the driver in an object space, setting the distance from the driver to a camera as l object, setting the focal length of an objective lens of the camera as f, setting the moving distance of the driver in the object space as d object, setting the normal range of <alpha> and <belta> as from -15 degrees to +15 degrees in a horizontal direction and from -10 degrees to +10 degrees in a vertical direction, and considering the attention of the eyes is diverted when exceeding the range. The system can be used for accurately identifying the attention of the eyes of the driver, thereby preventing safety accidents for incapability of accurately observing traffic conditions ahead due to that the attention of the eyes of the driver is diverted too much.

Description

To the system that car owner's eyes notice identifies in vehicle travel process

Technical field

The present invention relates to automotive field, particularly, relate in a kind of vehicle travel process the system that car owner's eyes notice identifies.

Background technology

Automobile is just like giving a definition: by power drive, has the vehicle of the non-track carrying of more than 4 or 4 wheels, is mainly used in: carrying personnel and or goods; The vehicle of traction carrying personnel or goods; Specific use.1879, German slip-stick artist Ka Erbenci, tested a tentative engine of two-stroke successfully first.In October, 1883, he has founded " Ben Ci company and Lai Yin gas motor factory ", 1885, he has made first this thatch patent motor vehicle in Mannheim, this car is tricar, adopt the gasoline engine of a two-stroke single cylinder 0.9 horsepower, this car has possessed some basic characteristics of Hyundai Motor, as spark ignition, Water-cooling circulating, steel pipe vehicle frame, Leaf Spring Suspension, rear wheel drive front-wheel steer and binding handle etc.On the January of 1886 29, the German slip-stick artist Ka Erbenci patent that has been its motor vehicle application.In November in the same year, the three-wheeled motor vehicle of Ka Erbenci obtains Germany's patent right.First Hyundai Motor in the world that Here it is generally acknowledges.For above-mentioned reasons, people generally all using 1886 as automobile first year, also some scholar makes Ka Erbenci that is 1885 year on first tricar, is considered as automobile and is born year.It within 1885, is 1 year that automobile invention obtains decisive breakthrough.At that time with the Ben Ci of Daimler at same factory, also at research automobile.He almost made petrol engine with Daimler in 1885 simultaneously, was contained on automobile, with the speeds of 12 kilometers per hour, succeeded.In this year, the Butler of Britain have also been invented gasoline-powered automobile.In addition, gondola Claude Bernard have also been invented automobile, Pu Qiluofu and Fu Luobofu two human hair of Russia understands the automobile that internal combustion engine is housed.China did not have auto manufacturing in the past.On Chinese soil, first automobile is that the U.S. inputted for 1903 produces oldsmobile board car, and lead to obtain number one running car licence, its owner is Shanghai rich man.From July nineteen fifty-three First Automobile Works start building, in July, 1956 goes into operation, July 13 nineteen fifty-seven, China produced the Jiefang brand automobile of first loading, again in May, 1958, China's First Automobile Works voluntarily Development and design produces first and to rise and fall the red flag board passenger car jolting, share weal or woe with political wind and cloud at that time, is described as " east romantic charm ".In decades, Domestic Automotive Industry obtains and develops fast.Particularly since reform and opening-up, automobile production have employed safety and the amenities of various high-tech and hommization, draws the elite of Foreign Automobile scientific research.Not only grasp and taken advantage of traditional firm moulding, have more the gentle and lovely style and features of fashion automobile, the lines flow smoothly, drives comfortable " car " new lover and be constantly born.At the bottom of calendar year 2001, China has become a full member of the World Trade Organization, and taking this as an opportunity, and Chinese Auto Industry has welcome a new high-speed developing period.2009, Chinese automobile production and marketing was respectively 1379.10 ten thousand and 1364.48 ten thousand, surmounted the U.S. at one stroke, was called the first in the world automobile production and marketing big country.The annual production and marketing of Chinese automobile in 2012 is respectively 1927.18 ten thousand and 1930.64 ten thousand, within continuous 4 years, continues to hold a post or title the first in the world.Enter after 10 years high speed developments, Chinese independent brand passenger car technology obtains significant progress.The upper vapour Roewe that one vapour red flag, the gentry of Beijing Automobile Workshop of the successively listing first half of the year in 2013 are precious, farsightedly gallop in Chang'an, lucky Deidro Deluxe, BYD think sharp and successively listing before this, Guangzhou Automobile Workshop pass the high-end passenger car of independent brand for representative such as auspicious and initiate group type to joint brand and charge, and will progressively rewrite independent brand passenger car and can only seize in low and middle-end the present situation in market.Hyundai Motor is of a great variety, and people are driving a car in driving process, because driver's eyes notice is not concentrated, causes unexpected generation.

Summary of the invention

Technical matters to be solved by this invention is to provide in a kind of vehicle travel process the system that car owner's eyes notice identifies, this system can accurately identify the eyes notice of driver, prevent due to driver's eyes notice that to depart from size too large, causing can not accurate observation front situation, causes the problem that security incident occurs.

The present invention's adopted technical scheme that solves the problem is: to the system that car owner's eyes notice identifies in vehicle travel process, carry out identification in the following ways to judge, driver is towards recognizer: set G point as driver's two mid points, Q point is two nostril mid points, when driver is in positive position, its Liang Yan center is in O point position, if now the line of driver's eyes mid point and two nostril mid points is EF, two oculopupillary lines are MN, article two, straight line intersection is in O point, when driver's face orientation changes, the center of two is mobile from O point to G point, the slope of GQ straight line also changes, the real-time coordinate of calculating G point and the slope of GQ, and then calculate driver towards angle, set up coordinate system, calculate the deflection angle centered by Y-axis, according to the right and left eyes coordinate that eyes location algorithm provides, calculate the distance y that two mid point G depart from EF, if video camera pixel dimension is μ _x* μ _y, the physical length of mid point O movement is y μ _x, according to Newton's formula, the actual range of the driver Liang Yan center movement at object space can be drawn, if the distance of driver's distance camera is l _thing, camera objective focal length is f, and driver is d in the distance of object space movement _thing, had by Newton's formula:

D _thing/ l _thing=y μ _x/ f

If the distance of two mid point distance turning axles is d _axle, angle of deflection when can obtain driver's left rotation and right rotation is:

In like manner, can obtain driver at the deflection angle β of pitch orientation is:

α and β horizontal direction is at-15 ° to+15 °, and vertical direction is normal range at-10 ° to+10 °, surpasses and goes beyond the scope, think that eyes notice departs from.

To sum up, the invention has the beneficial effects as follows: this system can accurately identify the eyes notice of driver, prevent due to driver's eyes notice that to depart from size too large, causing can not accurate observation front situation, causes the problem that security incident occurs.

Embodiment

Below in conjunction with embodiment, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.

Embodiment:

To the system that car owner's eyes notice identifies in vehicle travel process, carry out identification in the following ways to judge, driver is towards recognizer: set G point as driver's two mid points, Q point is two nostril mid points, when driver is in positive position, its Liang Yan center is in O point position, if now the line of driver's eyes mid point and two nostril mid points is EF, two oculopupillary lines are MN, article two, straight line intersection is in O point, when driver's face orientation changes, the center of two is mobile from O point to G point, the slope of GQ straight line also changes, the real-time coordinate of calculating G point and the slope of GQ, and then calculate driver towards angle, set up coordinate system, calculate the deflection angle centered by Y-axis, according to the right and left eyes coordinate that eyes location algorithm provides, calculate the distance y that two mid point G depart from EF, if video camera pixel dimension is μ _x* μ _y, the physical length of mid point O movement is y μ _x, according to Newton's formula, the actual range of the driver Liang Yan center movement at object space can be drawn, if the distance of driver's distance camera is l _thing, camera objective focal length is f, and driver is d in the distance of object space movement _thing, had by Newton's formula:

D _thing/ l _thing=y μ _x/ f

If the distance of two mid point distance turning axles is d _axle, angle of deflection when can obtain driver's left rotation and right rotation is:

In like manner, can obtain driver at the deflection angle β of pitch orientation is:

α and β horizontal direction is at-15 ° to+15 °, and vertical direction is normal range at-10 ° to+10 °, surpasses and goes beyond the scope, think that eyes notice departs from.

This system can accurately identify the eyes notice of driver, prevents due to driver's eyes notice that to depart from size too large, and causing can not accurate observation front situation, causes the problem that security incident occurs.

The above; it is only preferred embodiment of the present invention; not any pro forma restriction is done to the present invention, every according to technology of the present invention, method in fact to any simple modification, equivalent variations that above embodiment is done, all fall within protection scope of the present invention.

Claims (1)

1. in vehicle travel process to the system that car owner's eyes notice identifies, it is characterized in that, carry out identification in the following ways to judge, driver is towards recognizer: set G point as driver's two mid points, Q point is two nostril mid points, when driver is in positive position, its Liang Yan center is in O point position, if now the line of driver's eyes mid point and two nostril mid points is EF, two oculopupillary lines are MN, article two, straight line intersection is in O point, when driver's face orientation changes, the center of two is mobile from O point to G point, the slope of GQ straight line also changes, the real-time coordinate of calculating G point and the slope of GQ, and then calculate driver towards angle, set up coordinate system, calculate the deflection angle centered by Y-axis, according to the right and left eyes coordinate that eyes location algorithm provides, calculate the distance y that two mid point G depart from EF, if video camera pixel dimension is μ _x* μ _y, the physical length of mid point O movement is y μ _x, according to Newton's formula, the actual range of the driver Liang Yan center movement at object space can be drawn, if the distance of driver's distance camera is l _thing, camera objective focal length is f, and driver is d in the distance of object space movement _thing, had by Newton's formula:

D _thing/ l _thing=y μ _x/ f

If the distance of two mid point distance turning axles is d _axle, angle of deflection when can obtain driver's left rotation and right rotation is:

In like manner, can obtain driver at the deflection angle β of pitch orientation is:

α and β horizontal direction is at-15 ° to+15 °, and vertical direction is normal range at-10 ° to+10 °, surpasses and goes beyond the scope, think that eyes notice departs from.