基于单片机的24路调光控制器设计

The Design of 24-way Dimming Controller Based on Micro Control Unit

文章针对酒店对走廊灯的控制要求,设计用热释电红外传感器检测人体移动,通过单片机产生脉冲宽度调制波形,调节可控硅的导通角以实现灯光渐亮、渐灭的功能。该系统由12个传感器和24个灯回路构成,如果12个传感器都检测到有人体移动,则系统可以同时输出24路独立的脉冲宽度调制波形。

For the control of hotel corridor lamp, the pyroelectric infrared sensor is used to detect human body movement. The pulse width modulation （PWM） waveform is generated by micro control unit （MCU）, and the conduction angle of the thyristor can be regulated to realize the function of the gradual brightening and fading of the corridor lamp. The system consists of 12 sensors and 24 lamp loop, so if the 12 sensors detected the human body, the system can output 24-way independent PWM waveform at the same time.