基于双口RAM双CPU的高速旋转LED的显示系统  

High Speed Rotating LED Display System Based on Dual Port RAM and Dual CPU

作　　者：刘念 张弛 Liu Nian;Zhang Chi(School of Mechanical Engineering and Automation,Wuhan Textile University,Wuhan 430200,China)

机构地区：[1]武汉纺织大学机械工程与自动化学院,武汉430200

出　　处：《机电工程技术》2020年第10期136-137,204,共3页Mechanical & Electrical Engineering Technology

摘　　要：基于双口RAM双CPU的高速旋转LED显示方法,采用2个CPU加1个双口RAM以及1个CPLD达到更快的数据读取写入速度,实现更高的分辨率。采用无线供电的方式简化了机械式复杂的机械结构。使用自定义的文件管理系统,以数据流的形式存放在NANDFLASH之中,相较于FAT32格式的文件,程序执行效率更高,克服了文件数据读取慢的问题。采用4个传感器监测裸眼3D设备转速,使设备显示的图像更加稳定,克服了裸眼3D设备显示不稳定的问题。Based on dual port RAM and dual CPU high speed rotating LED display method,two CPUs,one dual port RAM and one CPLD were used to achieve faster data reading and writing speed and higher resolution.Wireless power supply was used to simplify the mechanical complex mechanical structure.The custom file management system was used and stored in nandflash in the form of data stream,compared with FAT32 format file,the program execution efficiency was higher,which overcomed the problem of slow file data reading.Four sensors were used to monitor the rotation speed of naked eye 3D equipment,which made the image displayed more stable and overcomes the problem of unstable display of naked eye 3D equipment.

关 键 词：裸眼3D 旋转LED 图像显示 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]