节能路灯控制系统的设计

Design of Energy-saving Street Lamp Control System

利用AT89C52设计了按键输入和显示、光敏电阻感应、人体红外感应及声光电报警等4个模块。当光线充足时,系统不工作,当光线变弱时,系统检索到有行人通过时,自动点亮路灯,当检测到行人不在触发范围内,路灯会以最后一次人体活动时间为界限自动延时10 s后变成第3等级的亮度,为过往车辆提供照明。该系统具有自动调节光线、自动开启和关闭及声光报警的功能。

In this paper,AT89C52 is used to design four modules:key input and display,photosensitive resistance induction,human infrared induction and sound photoelectric alarm.When the light is sufficient,the system does not work.When the light is weak,the system automatically lights up when a pedestrian passes.When the pedestrian is detected to be out of the trigger range,street lights will be the last human activity as the limit of automatic delay of 10 seconds into the third level of brightness,to provide lighting for passing vehicles.The system has the functions of auto-adjusting light,auto-turning on and off and auto-alarming sound and light.