一种汽车前照灯自动变光系统设计与仿真

Design and Simulation of Automatic Light Changing System of Automobile Headlamp

针对驾驶员夜间会车时,不能及时将远光灯转换为近光灯,从而引起对方驾驶员眩目、视线不清晰,易发生交通事故的情况,为此,设计一种以AT89C51单片机为核心部件的汽车智能自动变光系统,并采用Proteus软件进行仿真试验。该系统在汽车夜间行驶开启远光灯时自动开启,会车时通过光敏二极管向单片机输入高电平,启动调光输出模块工作,切换前照灯为近光灯,实现远近光自动切换的功能,这样可降低因远近光灯不能及时切换发生交通事故的概率。

For the driver at night, can not timely convert the high beam into a near-light light, thus causing the other side of the driver glare, the line of sight is not clear prone to traffic accidents. For this purpose, an automobile intelligent automatic lighting system with AT89C51 monchip as the core part is designed and simulated using Proteus software. The system is automatically turned on when the high beam is on when driving at night, and the car inputs high level to the single chip machine through the photosensitive diode, start the dimming output module, switch the headlights for the near light, and realize the function of near and near automatic switching, so as to reduce the probability of traffic accidents due to the far and near light cannot switch in time.