Method and device for adjusting light transmittance of front windshield

Abstract

The invention discloses a front windscreen light transmittance adjusting method and device and is applied to the technical field of automobiles to solve the problem that a light ray intensity adjusting method greatly influences light rays in vehicles after adjusting the light ray intensity in the prior art. The method specifically comprises the steps as follows: acquiring an eyeball image frame sequence, acquired by at least two image acquisition devices arranged in the vehicle, of a driver in a vehicle; determining a motion trail of the eyesight of the driver on a front windscreen of the vehicle according to the eyeball image frame sequence; determining areas, matched with the motion trail, in multiple areas of the front windscreen, and adjusting light transmittance of the front windscreen in the areas matched with the motion trail respectively. Thus, the light transmittance of corresponding areas of the front windscreen is reduced according to the motion trail of the eyesight of thedriver on the front windscreen, the effects of strong light on vision of the driver can be reduced, besides, the light transmittance of the rest areas of the front windscreen is kept unchanged, and the effects of adjustment of the light transmittance on light rays in the vehicle can be reduced.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a method and a device for adjusting light transmittance of a front glass. Background technique [0002] The front windshield can block the influence of the wind on the driver while the vehicle is running, and at the same time provide the driver with a wide field of vision. The current front windshield is mainly made of laminated tempered glass and laminated tempered glass, which can withstand strong impacts force. [0003] However, during driving, the light intensity of the environment where the vehicle is located often changes, which causes fluctuations in the light projected into the driver's eyes through the front windshield. When the light is strong, in order to reduce the impact of strong light on the The current solution to the impact on the driver's vision is to stick a film on the front windshield or use a light-absorbing material to make the front windshield. Althou...

AI Technical Summary

Problems solved by technology

[0003] However, during driving, the light intensity of the environment where the vehicle is located often changes, which causes fluctuations in the light projected into the driver's eyes through the front windshield. When the light is strong, in order to reduce the impact of strong light on the The current solution to the impact on the driver's vision is to stick a film on the front windshield or use a light-absorbing material to make the front windshield. Although this solution reduces the impact of strong light on the driver's vision to a certain extent, However, it also weakens the light intensity of the entire front windshield, which in turn affects the interior light of the vehicle.

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