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Method and device for controlling headlights

A car light control and car light technology, which is applied in the direction of car headlights, signal devices, transportation and packaging, etc., can solve the problems of traffic accidents, reduced driving speed, and endangering driving safety, etc.

Active Publication Date: 2021-04-27
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Yet, because the traveling of automobile is generally guided by front wheel, so the headlight that is fixedly arranged on the car body just can not change direction.
Specifically, when driving in a straight line, the headlights can give full play to their lighting effect and effectively illuminate the front of the car, allowing the driver to accurately understand the road conditions ahead; but if the driver needs to understand the road conditions on the side during driving At this time, the headlights still shine on the front of the car body, especially when the car turns, the front wheels turn first, but the car body does not turn, so that the driver cannot see the road conditions on the side in time at night, resulting in a blind spot. Increased risk of accidents
Especially driving at night on roads with many curves and large curvature will not only reduce the speed of driving, but also seriously endanger driving safety, and traffic accidents will easily occur

Method used

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  • Method and device for controlling headlights
  • Method and device for controlling headlights
  • Method and device for controlling headlights

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0065] see figure 2 , the vehicle light control method in this embodiment includes:

[0066] Step 110, acquiring the driver's head orientation, and determining the driver's line of sight direction according to the head orientation;

[0067] Step 111 , controlling the irradiation orientation of the vehicle headlights according to the driver's sight direction.

[0068] In this embodiment, the direction of the driver's head is taken as the line of sight direction.

[0069] Among them, the line of sight direction can be represented by the orientation relative to the direction directly ahead, such as turning left, turning right, etc.; Angle is the angle between the line of sight direction and the straight ahead direction; where the straight ahead direction is parallel to the driving direction.

[0070] In this embodiment, a camera device may be used to obtain the driver's head orientation.

[0071] Specifically, the camera device collects images of the driver's head;

[0072]...

no. 2 example

[0122] see Figure 5 , the vehicle light control method in this embodiment includes:

[0123] Step 120, acquire the focus orientation of the driver's eyes, and determine the driver's line of sight direction according to the focus orientation of the eyes;

[0124] Step 121: Control the irradiation orientation of the vehicle headlights according to the driver's line of sight.

[0125] In this embodiment, the focus orientation of the driver's eyes is taken as the line of sight direction.

[0126] The focus position of the eyes can be determined by using the images collected by the camera device; wherein, the images collected by the camera device include the driver's head. Specifically, the eyeball and the eye contour are identified from the image, and the positions of the eyeball center and the eye contour center are determined; according to the positions of the eyeball center and the eye contour center, the focus orientation of the eye is determined.

[0127] Wherein, when de...

no. 3 example

[0131] see Figure 6 , the vehicle light control method in this embodiment includes:

[0132] Step 130, acquiring the driver's head orientation and eye focus orientation, and determining the driver's line of sight direction according to the head orientation and eye focus orientation;

[0133] Step 131: Control the irradiation orientation of the vehicle headlights according to the driver's line of sight.

[0134] In this embodiment, the acquisition of the driver's head orientation is the same as in the foregoing embodiments.

[0135] After the driver's head orientation is obtained, images whose similarity is greater than the similarity threshold can be used to determine the angle between the focus orientation of the eyes and the head orientation. Specifically, the eyeball and the eye contour are identified from the image, and the positions of the eyeball center and the eye contour center are determined; according to the positions of the eyeball center and the eye contour cent...

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Abstract

The application discloses a method and device for controlling a car light, including: determining the driver's line of sight direction; and controlling the irradiation direction of the car light according to the driver's line of sight direction. The present application realizes the control of the irradiation direction of the car lights according to the driver's line of sight, so that the road condition of the target area that the driver wants to know can still be well irradiated during the process of the driver's line of sight changing, thereby reducing the The blind spot of vision is eliminated, and the driving safety is improved.

Description

technical field [0001] The invention relates to the field of vehicle control, in particular to a method and device for controlling vehicle lights. Background technique [0002] A car's headlights are used to illuminate the road ahead of the vehicle. Generally, the headlight is fixedly arranged at the front end of the vehicle body, and its irradiation direction is parallel to the front of the vehicle body, that is, the irradiation direction of the headlight is consistent with the vehicle body at all times. [0003] Yet, because the traveling of automobile is generally guided by front wheel, so the headlight that is fixedly arranged on the car body just can not change direction. Specifically, when driving in a straight line, the headlights can give full play to their lighting effect, effectively illuminate the front of the car, and allow the driver to accurately understand the road conditions ahead; but if the driver needs to understand the road conditions on the side during ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60Q1/08B60Q1/076
CPCB60Q1/076B60Q1/08B60Q2300/23
Inventor 赵天月马希通严寒曾起张治国
Owner BOE TECH GRP CO LTD