Automobile intelligent headlight lighting device based on SFV and DLP

Abstract

The invention relates to the technical field of automobile lighting system intelligent control, in particular to an automobile intelligent headlight lighting device based on an SFV and a DLP. The lighting device comprises a DLP projection system, a free-form surface projection lens system and an SFV module. The SFV module is used for outputting a control signal according to the road condition in front of an automobile; the DLP projection system is used for adjusting the output light pattern of a lighting area of the automobile according to the control signal output by the SFV module; the free-form surface projection lens system converts the light pattern projected by the DLP projection system into a rectangular spot. The SFV module can achieve functions of automatic light change, anti-collision alarm and lane keeping according to the road state ahead. The low beam pattern, the high beam pattern and the ADB anti-dazzling pattern can be achieved by controlling the state of each micromirror of a micromirror array of a DMD chip in the DLP projection system, and the problem of dazzling of other traffic participants caused by abuse or misuse of the high beam by one party is solved.

Description

technical field [0001] The invention relates to the technical field of intelligent control of lighting systems of automobiles, in particular to a lighting device for intelligent headlights of automobiles based on SFV and DLP. Background technique [0002] With the rapid development of society, the number of cars is increasing day by day, and the resulting traffic safety has attracted more and more attention, especially when traffic accidents occur frequently at night. According to statistics, more than 70% of domestic traffic accidents occur at night, while the traffic volume at night is less than 1 / 3 of the total traffic volume. It can be seen that the probability of traffic accidents at night is far greater than that during the day. Trace it to its cause, there are mainly poor light at night, poor lighting, and improper use of high beams when meeting vehicles, causing the driver to be dazzled, and among them, improper use of high beams accounts for about 40%. Therefore, s...

AI Technical Summary

Problems solved by technology

This technical solution uses LiFi technology to realize information interaction between vehicles. Although the wireless communication rate of Lifi technology is very fast, reaching 50Gbps or higher, Lifi technology is a medium and short-distance wireless communication technology with a short communication distance and Severe attenuation; since Lifi technology is an optical communication technology, it will be interfered by ambient light sources. If the ambient light source works in the same spectral frequency band and has a high brightness, it is likely that normal communication will not be possible.

Therefore, the technical solution of this invention patent application cannot realize long-distance vehicle recognition or vehicle interaction, and is greatly affected by environmental interference, and the accuracy of recognition or communication is also low. It is impossible to realize the lane keeping function. Finally, this technical solution requires both the own side and the other side to be equipped with LiFi sending components and LiFi receiving components, otherwise information interaction cannot be carried out

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