Automobile headlamp automatic control system based on machine vision

Abstract

The invention relates to an automobile headlamp automatic control system based on machine vision. The automobile headlamp automatic control system is characterized in by comprising a camera arranged at the inner side of a windscreen in the front of an automobile, wherein the camera is connected with a DSP (Digital Signal Processor) control system arranged on a central control panel of the automobile through a data line, an output end of the DSP control system is connected with a triode, the triode is connected with a control end of a relay, another control end of the relay is connected to a power supply of the automobile, and contacts of the relay are connected in a headlamp control circuit of the automobile in series; the camera collects the information of road lamps at the two sides of a road and the lamp information of automobiles in an opposite direction in real time and sends collected color images to the DSP control system, the DSP control system analyzes and processes pixels in the road lamp zone and the automobile lamp zone and sends control commands to the triode according to processed results, and the triode controls the relay to pull in and disconnected so as to control the automobile to be switched between a high beam lamp and a dipped headlamp. The system can be broadly used for the switch control of the headlamp of the automobile running at night.

Description

technical field [0001] The present invention relates to an automatic control system for automobile headlights, in particular to an automatic control system for automobile headlights based on machine vision, which is used for automatic adjustment according to the information of street lamps on both sides of the road and the information of the lights of vehicles coming in relative directions. . Background technique [0002] When the car is driving at night, the driver needs to switch the high beam and low beam of the car according to the road light conditions (such as whether there is street lighting, etc.) and the light information of the car coming from the opposite direction. Lights and low beams not only violate traffic rules but also endanger the safety of vehicles coming from the opposite direction and pedestrians around. Existing auto headlight automatic control systems, such as auto headlight automatic conversion technology, auto headlight adaptive system, etc., can a...

AI Technical Summary

Problems solved by technology

[0003] However, photoresistors can only obtain light intensity information, and the ability to identify light sources is not strong, which can easily lead to wrong judgments and wrong light control operations. For example, when there are no street lights on both sides of the road, if the lights in the houses on both sides of the road (or Other interfering lights) shine on the photoresistor, the control system will recognize that there are street lights and then control the car to turn on the low beam headlights; for example, when there are no street lights on both sides of the road, when passing a car, it will recognize the photoresistor of the car lights when it is about to miss the car It will be unable to receive the light due to the limitation of the light angle (if the angle of the photoresistor to recognize the light is too large, the anti-interference ability will be worse), the control system thinks that there is no car in front and then controls to switch to the high beam, so that the car's front light is wrongly controlled The lights may endanger the safety of pedestrians and vehicles coming from the opposite direction

In addition, the existing automatic control system of automobile headlights uses a simple electronic circuit to realize the control of the automobile headlights. Since the simple electronic circuit cannot handle more complicated environmental conditions, the practicability of this control technology is not high. For example, when the car coming from the opposite direction is always on the high beam, it is difficult for a simple electronic circuit to automatically make a flashing reminder operation.

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