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A light adjustment method for adb headlights

A technology for light adjustment and headlights, applied in light sources, headlights, energy-saving control technology, etc., can solve the problems of inaccurate headlights, insufficient zonal adjustment functions, and failure to maximize the use of the external environment, and achieve precise control and adjustment. , Lighting adjustment precise effect

Active Publication Date: 2022-08-09
江苏缤致光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The partition adjustment function is not enough, resulting in the inaccuracy of the entire headlight
[0005] (2) Did not consider the surrounding environment of the car and the surrounding light source as much as possible, resulting in the failure to make maximum use of these external environments when adjusting the lights

Method used

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  • A light adjustment method for adb headlights
  • A light adjustment method for adb headlights
  • A light adjustment method for adb headlights

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] Step 1: According to the LED layout and light shape, partition the ADB headlight source. Taking the ADB headlight with 4 LEDs as an example, the correspondence between LED particles and segments is as follows Figure 4 Based on the original partition, from left to right, from large to small, the light source is partitioned, and the LED particles corresponding to each partition are displayed at the same time, such as Figure 5 shown.

[0141] Step 2: The ADB headlight control unit reads n pieces of target information sent by the camera every cycle, and extracts the valid information. Read the message information of the target information, if the target corresponding to the current message is valid, continue to extract the attribute, distance, angle, width and speed information of the target object in the message, and store them in the array. Traverse the packets of the camera containing the target information to form a set of target objects TargetObject[m][5].

[0142...

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PUM

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Abstract

The invention discloses a light adjustment method for ADB headlights. First, the external environment of the car, including vehicle information, pedestrian information, road sign indication information, etc. is obtained from a camera; then the ADB headlights are divided according to the arrangement of LEDs; The external information input by the camera corresponds to the corresponding LED partition. According to the attributes (vehicles, people or road signs, etc.), relative speed and relative distance reflected by the information, the LED brightness corresponding to the interval is generated, and each external information corresponds to the light source interval. The brightness of the LED is set to the lowest brightness by comparison and judgment. Therefore, while making full use of the headlight source to provide a wide field of vision, it can prevent dazzling other vehicles and pedestrians and reduce the occurrence of accidents.

Description

technical field [0001] The invention belongs to the automotive lighting control technology, in particular to a lighting adjustment method for ADB headlights. Background technique [0002] With the development of automotive electronic technology, from the perspective of safety and comfort, the requirements for automotive lighting systems in the direction of electronics and intelligence are getting higher and higher. Therefore, the ADB technology based on matrix LED headlights came into being. This light distribution method can make full use of the headlights to improve the lighting effect while preventing the dazzling of the vehicles or pedestrians ahead. A camera or radar detection device is used to detect and recognize objects ahead, reduce or turn off the light in the area where the detected vehicle ahead is present, and illuminate the other wide areas brightly. [0003] Compared with the second-generation adaptive headlight system AFS, ADB not only satisfies the driver's...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S41/141H05B45/325F21W102/10F21W107/10F21Y115/10
CPCF21S41/141H05B45/325F21W2102/10F21W2107/10F21Y2115/10Y02B20/40
Inventor 王俊杰缪鹏虎杨瑞姚时音周文斌
Owner 江苏缤致光电科技有限公司