基于视觉暂留的动态扫描LED旋转屏

摘要

为了研究并控制基于视觉暂留的发光二极管旋转显示屏,在系统仿真研究的基础上,设计并改善了红外驱动电路、磁电传感器电路以及单片机控制系统,在Keil-汇编语言环境下编写了单片机控制程序,制作出PCB电路板并进行了软硬件调试.实验结果表明,设计的基于视觉暂留的发光二极管旋转显示屏具有良好的可控制性和实用性,实现了非矩形及高速旋转场合下的应用.%In order to study and control the persistence of vision-based light-emitting diode rotation display,and on the basis of system simulation, the infrared driver circuit, magnetic sensor circuit and microcomputer control system were designed and improved. Under Keil environment, a MCU control program was compiled, a PCB circuit board was produced and its hardware and software debugging was completed. The result shows that the design of POV-based LED rotation display has good control performance and practicability, which can be successfully used in non-rectangular and high-speed rotation occasions.