一种LED灯阵光控系统的设计与实现

Design and implementation of optical control System For a LED lamp array

摘要:

针对在大功率LED灯阵光控系统中,需采用专门的恒流源进行驱动控制造成的设计复杂且制造成本较高的缺点，提出了一种集中控制式LED光控系统。系统以PIC单片机为控制中心，通过PWM脉宽调制和检测模块实现对LED灯阵发光亮度、闪烁频率及通信链路的精确控制。阐述了系统的设计方案及组成原理，并描述了系统的软硬件设计及实现方法。系统方便实现对LED单灯的通断、亮度等控制，能显著降低LED光控系统产品设计、生产以及用户的使用成本。该光控系统设计具有光能利用率高、成本价格低廉、节能减排效果显著等优势，可以推广到其它大型LED照明系统智能化控制等领域。

Abstract:

This paper introduces a optical control system, which has a MCU control center, and use PWM pulse width modulation as the way to accurately control and check the LED lamp array′s brightness、coruscate frequency、LED communication link. The paper gives the design scheme of the system,and detailed descripition of the hardware and software design method, this system works stably and reliably.