一种智能的汽车前照灯系统

摘要

LED（发光二级管，Light-Emitting Diodes）前照灯是新能源汽车中的重要元件，关系到汽车的行驶安全。本文针对传统前照灯的照明盲点，研究了一种智能的LED汽车前照灯系统。STM32单片机接收环境光采集模块传送来的信号，将方向盘转角、车速、雨水、车身倾斜角等信号，通过CAN总线传回STM32单片机，单片机对接收到的信号进行处理，对当时的车外环境以及车本身的情况进行判断，再由单片机把执行信号经CAN总线传给各个执行单元，来达到对车灯的亮度和角度的改变。本文重点研究前照灯的硬件电路部分和软件部分。%LED(Light-Emitting Diodes)lighting is an important component in the new energy vehicles,which is related to the driving safety of the automobile.Aiming at the Lighting blindness of the traditional headlight,this paper studies the Intelligent LED automobile headlight system.STM32 MCU receiving environment light acquisition module is transmitted to the signal,the steering wheel angle and vehicle speed,rain,body tilt angle signal,through the CAN bus returned STM32 microcontroller,microcontroller on the received signal processing,to judge when the environment outside the car and the car itself,and then by the MCU to perform signal via the CAN bus transmission to each execution unit,to reach the lamp brightness and angle change.This paper focuses on the hardware circuit and software of the headlight.