基于单片机的智能教室照明系统设计

Design of intelligent classroom lighting system based on microcontroller

文章设计实现的智能教室照明系统主要由STC89C52单片机、时钟芯片DS1302、液晶屏LCD1602、光敏电阻和红外对管等组装而成,主要模块包括主控单元、LCD显示、物体检测块、环境明暗检测、电源和功率调节等模。该智能照明系统采用红外对管检测教室人数,根据教室人数自动控制照明灯的个数,并利用光敏电阻检测教室光线强弱。系统可通过按键选择不同模式。自动模式时,可通过光线亮暗、时间段和教室人数自动调整照明,在无人教室关闭所有照明,在人数较少时通过显示屏提醒更换教室以节省电能。在手动模式下,可手动控制开关的亮灭,人数统计仍然生效。

The intelligent classroom lighting system designed and implemented in this paper is mainly composed of STC89C52 single chip microcomputer,clock chip DS1302,LCD LCD1602,photoresistor and infrared tube.The main module consists of the main control unit,LCD display,object detection,environment brightness detection,power,and power regulation.The intelligent lighting system uses infrared tube to detect the number of classroom,automatically controls the number of lights according to the number of classroom,and uses photosensitive resistance to detect the intensity of the classroom light.The system can select different modes by pressing buttons.In automatic mode,the lighting can be automatically adjusted according to light brightness,time period and the number of classrooms.In unmanned classrooms,all lighting can be turned off.When the number of students is small,the screen reminds to change the classroom to save power.In manual mode,you can manually control the switch on and off,and the number of people still takes effect.