液晶与显示2012，Vol.27Issue(1)：75-80,6.DOI:10.3788/YJYXS20122701.0075
千兆以太网介质转换器在LED显示屏传输系统中的应用
Gigabit Ethernet Media Converter Used in LED Display Transmission System
摘要
Abstract
For different distance requirement of LED control system, a Gigabit Ethernet media converter between twisted pair and fiber optic was designed. Ethernet standards 802. 3ab and 802. 3z were introduced. Taking 1000BASE-T and 1000BASE-LX as an example, signal transmission characteristics on the two physical layers was studied in details which were regarded as a basis for building the system structure. By analyzing the transmission frame structure, master FPGA controller was designed for data storing and forwarding. Data frame unpacking and reconstruction were also realized in the controller. The result showed that the system design matched the Ethernet standard on physical layer. The effective transmission rate was up to 2 Gbit/s both in twisted pare and optic fiber. The transmission distance could be 100 m~10 km. With two kinds of medium used in LED transmission system, the highest price quality could be achieved when constructing the network. The design could be a reference for long-distance, real-time, general video transmission besides the LED display.关键词
1000BASE-T/1000BASE-LX/传输系统/FPGA/LEDKey words
1000BASE-T/ 1000BASE-LX/ transmission system/ FPGA/ LED分类
信息技术与安全科学引用本文复制引用
李爽,郑喜凤,严飞..千兆以太网介质转换器在LED显示屏传输系统中的应用[J].液晶与显示,2012,27(1):75-80,6.基金项目
国家科技支撑计划项目(No.2009 BAE73B01) （No.2009 BAE73B01）
